Patent application number | Description | Published |
20130335658 | Pixel Architecture for Electronic Displays - An electronic display for providing a visual or video output for an electronic device. The electronic device includes a transistor layer configured to activate a first pixel row and a second pixel row. For each pixel in the first pixel row and the second pixel row, the transistor layer includes a switch transistor, a pixel electrode, and a common electrode. The electronic device further includes a pixel controller for selectively activating each pixel. The pixel controller includes a first gate line, a first drive line, and a second drive line. During operation, the first gate line provides a charge to the pixel electrode for a first pixel in the first pixel row and for a second pixel in the second pixel row, and the first drive line activates the switch transistor for the first pixel, and the second drive line activates the switch transistor for the second pixel. | 12-19-2013 |
20130337596 | Back Channel Etch Metal-Oxide Thin Film Transistor and Process - A method is provided for fabricating an organic light emitting diode (OLED) display. The method includes forming a thin film transistor (TFT) substrate including a first metal layer and a second metal layer. The method also includes depositing a first passivation layer over the second metal layer, and forming a third metal layer over a channel region and a storage capacitor region. The third metal layer is configured to connect to a first portion of the second metal layer that is configured to connect to the first metal layer in a first through-hole through a gate insulator and the first passivation layer. The method further includes depositing a second passivation layer over the third metal layer, and forming an anode layer over the second passivation layer. The anode is configured to connect to a second portion of the third metal layer that is configured to connect to the second metal layer in a second through-hole of the first passivation layer and the second passivation layer. | 12-19-2013 |
20140042427 | Gate Insulator Loss Free Etch-Stop Oxide Thin Film Transistor - A method is provided for fabricating a thin-film transistor (TFT). The method includes forming a semiconductor layer over a gate insulator that covers a gate electrode, and depositing an insulator layer over the semiconductor layer, as well as etching the insulator layer to form a patterned etch-stop without losing the gate insulator. The method also includes forming a source electrode and a drain electrode over the semiconductor layer and the patterned etch-stop. The method further includes removing a portion of the semiconductor layer beyond the source electrode and the drain electrode such that a remaining portion of the semiconductor layer covers the gate insulator in a first overlapping area of the source electrode and the gate electrode and a second overlapping area of the drain electrode and gate electrode. | 02-13-2014 |
20140061656 | Two Doping Regions in Lightly Doped Drain for Thin Film Transistors and Associated Doping Processes - A method is provided for fabricating thin-film transistors (TFTs) for an LCD having an array of pixels. The method includes depositing a first photoresist layer over a portion of a TFT stack that includes a conductive gate layer, and a semiconductor layer. The method also includes doping the exposed semiconductor layer with a first doping dose. The method further includes etching a portion of the conductive gate layer to expose a portion of the semiconductor layer, and doping the exposed portion of the semiconductor layer with a second doping dose. The method also includes depositing a second photoresist layer over a first portion of the doped semiconductor layer in an active area of the pixels to expose a second portion of the doped semiconductor layer in an area surrounding the active area, and doping the second portion of the doped semiconductor layer with a third doping dose. | 03-06-2014 |
20140070225 | Hydrogenation and Crystallization of Polycrystalline Silicon - A TFT stack for a liquid crystal display is provided. The TFT stack includes a silicon layer that includes a heavily doped region, a non-doped region, and a lightly doped region between the heavily doped region and the non-doped region. The heavily doped region is hydrogenated. The TFT stack also includes an insulation layer that includes a first portion formed over the lightly doped region and a second portion disposed over the non-doped region and a gate metal electrode layer formed over the second portion of the non-doped region. The TFT stack also includes a first dielectric layer disposed over the gate metal electrode and over the first portion of the insulation layer. The heavily doped region is hydrogenated to reduce the dependence of the capacitance between the gate metal electrode and the conductive layer C | 03-13-2014 |
20140084292 | Connection to First Metal Layer in Thin Film Transistor Process - A method of connecting to a first metal layer in a semiconductor flow process. Disclosed embodiments connect to the first metal layer by etching a first portion of a viahole through an etch stop layer and a gate insulation layer to reach a first metal layer, depositing a second metal layer such that the second metal layer contacts the first metal layer within the viahole, and etching a second portion of the viahole through a first passivation layer and an organic layer to reach the second metal layer. | 03-27-2014 |
20140103349 | DIFFERENT LIGHTLY DOPED DRAIN LENGTH CONTROL FOR SELF-ALIGN LIGHT DRAIN DOPING PROCESS - A method is provided for fabricating thin-film transistors (TFTs) for an LCD having an array of pixels. The method includes depositing a first photoresist layer over a portion of a TFT stack. The TFT stack includes a conductive gate layer, and a semiconductor layer. The method also includes doping the exposed semiconductor layer with a first doping dose. The method further includes etching a portion of the conductive gate layer to expose a portion of the semiconductor layer, and doping the exposed portion of the semiconductor layer with a second doping dose. The method also includes removing the first photoresist layer, and depositing a second photoresist layer over a first portion of the doped semiconductor layer in an active area of the pixels to expose a second portion of the doped semiconductor layer in an area surrounding the active area. The method further includes doping the second portion of the doped semiconductor layer with a third doping dose, the first dose being higher than the second dose and the third dose. | 04-17-2014 |
20140104527 | Process Architecture for Color Filter Array in Active Matrix Liquid Crystal Display - An active matrix liquid crystal display having an array of pixels is provided. The display includes a thin film transistor (TFT) for each pixel. The TFT has a gate electrode, a source electrode overlapping with a first area of the gate electrode, and a drain electrode overlapping with a second area with the gate electrode. The display also includes a color filter layer disposed over the TFT. The color filter layer has a first via hole to expose a portion of the drain electrode. The display further includes a metal layer disposed over the color filter layer and covering the gate electrode. The metal layer is configured to connect to the drain electrode through the first via hole. The display also includes an organic insulator layer disposed over the metal layer. The organic insulator layer has a second via hole to expose a first portion of the metal layer and a third via hole to expose a second portion of the metal layer. | 04-17-2014 |
20140120657 | Back Channel Etching Oxide Thin Film Transistor Process Architecture - A method is provided for fabricating a back channel etching (BCE) oxide thin film transistor (TFT) for a liquid crystal display. The method includes forming a first metal layer having a first portion and a second portion over a substrate, depositing a gate insulator over the first metal layer, and disposing a semiconductor layer over the gate insulator. The method also includes depositing a half-tone photoresist to cover a first portion of the semiconductor layer and the first portion of the first metal layer. The half-tone photoresist has a first portion and a second portion thicker than the first portion. The first portion has a via hole above the second portion of the first metal layer. The second portion of the half-tone photoresist covers the first portion of the first metal layer. The method further includes etching a portion of the gate insulator through the via hole such that the second portion of the first metal layer is exposed, removing the first portion of the half-tone photoresist while remaining the second portion of the half-tone photoresist, and etching to remove a second portion of the semiconductor layer that is not covered by the half-tone photoresist. | 05-01-2014 |
20140138637 | FLEXIBLE DISPLAY - A flexible display having an array of pixels or sub-pixels is provided. The display includes a flexible substrate and an array of thin film transistors (TFTs) corresponding to the array of pixels or sub-pixels on the substrate. The display also includes a first plurality of metal lines coupled to gate electrodes of the TFTs and a second plurality of metal lines coupled to source electrodes and drain electrodes of the TFTs. At least one of the first plurality of metal lines and the second plurality of metal lines comprises a non-stretchable portion in the TFT areas and a stretchable portion outside the TFT areas. | 05-22-2014 |
20140203245 | Active Matrix Organic Light Emitting Diode Display Having Variable Optical Path Length for Microcavity - An organic light emitting diode display includes an array of pixels on a substrate. Each pixel includes three sub-pixels that emits light of different wavelengths from each other. The display includes thin film transistors (TFTs) for the sub-pixels on the substrate. Each TFT is separated from each other by a first pixel defining layer. The display also includes a first pixel electrode connected to the TFT for each sub-pixel, a tuning layer on the first pixel electrode, where the tuning layer has a thickness for each sub-pixel such that each sub-pixel has a optical-path length different from another sub-pixel. The display further includes an organic light emitting layer disposed over the tuning layer, and a second pixel defining layer covering a first end of the tuning layer and a second end of the tuning layer opposing to the first end of the tuning layer, and exposing the light emitting layer. | 07-24-2014 |
20140211120 | Third Metal Layer for Thin Film Transistor witih Reduced Defects in Liquid Crystal Display - A liquid crystal display (LCD) includes an array of pixels over a thin film transistor (TFT) substrate. The TFT substrate includes a TFT that has a first metal layer to form a gate electrode and a second metal layer to form a source electrode and a drain electrode for each pixel. The LCD also includes an organic insulation layer disposed over the TFT substrate, where the organic insulator layer has trenches on a top surface. The LCD further includes a third metal layer disposed over the organic insulation layer in the trenches, the trenches having a trench depth at least equal to the thickness of the third metal layer. The LCD also includes a passivation layer over the third metal layer, and a pixel electrode for each pixel over the passivation layer. The LCD further includes a polymer layer over the pixel electrode, and liquid molecules on the polymer layer. | 07-31-2014 |
20140370655 | Gate Insulator Loss Free Etch-Stop Oxide Thin Film Transistor - A method is provided for fabricating a thin-film transistor (TFT). The method includes forming a semiconductor layer over a gate insulator that covers a gate electrode, and depositing an insulator layer over the semiconductor layer, as well as etching the insulator layer to form a patterned etch-stop without losing the gate insulator. The method also includes forming a source electrode and a drain electrode over the semiconductor layer and the patterned etch-stop. The method further includes removing a portion of the semiconductor layer beyond the source electrode and the drain electrode such that a remaining portion of the semiconductor layer covers the gate insulator in a first overlapping area of the source electrode and the gate electrode and a second overlapping area of the drain electrode and gate electrode. | 12-18-2014 |
Patent application number | Description | Published |
20100251784 | FABRIC TREATING MACHINE - A fabric treating machine includes a spray nozzle for spraying water supplied from a water supply passage into an inner tub and a spray nozzle combining unit for combining the spray nozzle with a case. Fabric loaded in the inner tub can be effectively soaked through the spray nozzle. Furthermore, a spray direction of the spray nozzle can be accurately adjusted when the spray nozzle is fitted in the case, and thus the spray nozzle can be easily fitted in the case and water sprayed through the spray nozzle can be prevented from overflowing. | 10-07-2010 |
20100281927 | WASHING MACHINE - A washing machine includes: a cabinet forming an external appearance and having an open upper portion; a reservoir hanging within the cabinet and allowing washing water to be put therein; a washing tub rotatably disposed within the reservoir and accommodating the laundry; and a spray nozzle spraying washing water into the washing tub such that one boundary of sprayed washing machine reaches a side wall of the washing tub and the other boundary of the sprayed washing water reaches the bottom of the washing tub, wherein the spray nozzle includes: a tube part forming a passage along which washing water is introduced; and a spray part connected with the tube part to spray washing water and disposed such that a spray face against which washing water discharged from the tube part splashes is bent at a certain angle with respect to a discharge direction of the tube part. The laundry can be effectively wet by increasing a spray range of washing water. | 11-11-2010 |
20130077809 | WASHING MACHINE - The present invention relates to a washing machine in which the quality of a signal sound containing information on the washing machine is improved, wherein said signal sound is outputted by a signal sound output unit. More particularly, the present invention relates to a washing machine, comprising: the signal sound output unit which outputs, in a signal sound, information on the washing machine; and a signal sound guide unit which is arranged along the periphery of the signal sound output unit to form a sound path between the signal sound output unit and the signal sound guide unit, wherein one end of the signal sound guide unit is for reflecting the signal sound outputted by the signal sound output unit, and the other end thereof is open so as to output the signal sound transmitted through the sound path. | 03-28-2013 |
20140109623 | FABRIC TREATING MACHINE - A fabric treating machine includes a spray nozzle for spraying water supplied from a water supply passage into an inner tub and a spray nozzle combining unit for combining the spray nozzle with a case. Fabric loaded in the inner tub can be effectively soaked through the spray nozzle. Furthermore, a spray direction of the spray nozzle can be accurately adjusted when the spray nozzle is fitted in the case, and thus the spray nozzle can be easily fitted in the case and water sprayed through the spray nozzle can be prevented from overflowing. | 04-24-2014 |
20140109624 | FABRIC TREATING MACHINE - A fabric treating machine includes a spray nozzle for spraying water supplied from a water supply passage into an inner tub and a spray nozzle combining unit for combining the spray nozzle with a case. Fabric loaded in the inner tub can be effectively soaked through the spray nozzle. Furthermore, a spray direction of the spray nozzle can be accurately adjusted when the spray nozzle is fitted in the case, and thus the spray nozzle can be easily fitted in the case and water sprayed through the spray nozzle can be prevented from overflowing. | 04-24-2014 |
20140109625 | FABRIC TREATING MACHINE - A fabric treating machine includes a spray nozzle for spraying water supplied from a water supply passage into an inner tub and a spray nozzle combining unit for combining the spray nozzle with a case. Fabric loaded in the inner tub can be effectively soaked through the spray nozzle. Furthermore, a spray direction of the spray nozzle can be accurately adjusted when the spray nozzle is fitted in the case, and thus the spray nozzle can be easily fitted in the case and water sprayed through the spray nozzle can be prevented from overflowing. | 04-24-2014 |
20140109626 | WASHING MACHINE - A washing machine includes; a cabinet forming an external appearance and having an open upper portion; a reservoir hanging within the cabinet and allowing washing water to be put therein; a washing tub rotatably disposed within the reservoir and accommodating the laundry; and a spray nozzle spraying washing water into the washing tub such that one boundary of sprayed washing machine reaches a side wall of the washing tub and the other boundary of the sprayed washing water reaches the bottom of the washing tub, wherein the spray nozzle includes: a tube part forming a passage along which washing water is introduced; and a spray part connected with the tube part to spray washing water and disposed such that a spray face against which washing water discharged from the tube part splashes is bent at a certain angle with respect to a discharge direction of the tube part. The laundry can be effectively wet by increasing a spray range of washing water. | 04-24-2014 |
20140137609 | WASHING MACHINE - A washing machine includes: a cabinet forming an external appearance and having an open upper portion; a reservoir hanging within the cabinet and allowing washing water to be put therein; a washing tub rotatably disposed within the reservoir and accommodating the laundry; and a spray nozzle spraying washing water into the washing tub such that one boundary of sprayed washing machine reaches a side wall of the washing tub and the other boundary of the sprayed washing water reaches the bottom of the washing tub, wherein the spray nozzle includes: a tube part forming a passage along which washing water is introduced; and a spray part connected with the tube part to spray washing water and disposed such that a spray face against which washing water discharged from the tube part splashes is bent at a certain angle with respect to a discharge direction of the tube part. The laundry can be effectively wet by increasing a spray range of washing water. | 05-22-2014 |
Patent application number | Description | Published |
20080216518 | FOREIGN MATERIALS FILTERING APPARATUS AND WASHING MACHINE HAVING THE SAME - In a foreign materials filtering apparatus and a washing machine having the same, a filter unit is not exposed to inside of a washing tub thus not to directly come in contact with laundry, thereby preventing the filter unit and laundry from being damaged and enhancing the entire appearance. Also, the foreign materials filtering apparatus is modularized to facilitate a detachable mounting, thereby enhancing the user's convenience. Additionally, the amount of washing water passing through the foreign materials filtering apparatus is increased by controlling a flowing direction of washing water. Furthermore, foreign materials of washing water are prevented from being introduced into a gap between a washing water circulating duct and a filter unit, thereby enhancing a washing effect. | 09-11-2008 |
20080216519 | FOREIGN MATERIALS FILTERING APPARATUS AND WASHING MACHINE HAVING THE SAME - In a foreign materials filtering apparatus and a washing machine having the same, a filter cover is installed at a washing water circulating duct disposed inside a washing tub, and a net filter is installed at an inner side of the filter cover. Accordingly, the net filter is prevented from directly contacting laundry, thereby preventing the not filter and the laundry from being damaged. Furthermore, since the net filter is covered by the filter cover, the entire appearance is enhanced. Additionally, when the net filter is mounted at the filter cover, the filter unit becomes modularized to be facilitate a detachable mounting. | 09-11-2008 |
20080216520 | FOREIGN MATERIALS FILTERING APPARATUS AND WASHING MACHINE HAVING THE SAME - Disclosed are a foreign materials filtering apparatus and a washing machine having the same. Since a filter cover unit and a filter unit are integrally modularized with each other, a user can separate or mount the filter unit from/to a washing water circulating duct by separating or mounting the filter cover unit from/to the washing water circulating duct. Accordingly, the foreign materials filtering apparatus can be easily detachably mounted at the washing water circulating duct. | 09-11-2008 |
20080216522 | FOREIGN MATERIALS FILTERING APPARATUS AND WASHING MACHINE HAVING THE SAME - In a foreign materials filtering apparatus and a washing machine having the same, owing to a detachable mounting structure between a handle and a front filter and between a rear filter and the front filter, foreign materials collected in a foreign materials filtering space can be easily cleaned. Accordingly, can be solved the conventional problem that a net filter has to be kept inside out at the time of a cleaning process, resulting in causing a user's hands to become dirty. Also, can be solved the conventional problem that there is a difficulty in removing foreign materials from the net filter due to a fibrous characteristic of the net filter. | 09-11-2008 |
20080216523 | FOREIGN MATERIALS FILTERING APPARATUS - In a foreign materials filtering apparatus for a washing machine, a filter unit is not exposed to inside of a washing tub thus not to directly come in contact with laundry. Accordingly, the filter unit and laundry are prevented from being damaged, and the entire appearance is enhanced. Additionally, the foreign materials filtering apparatus is modularized to facilitate a detachable mounting, thereby enhancing the user's convenience. | 09-11-2008 |
20080217243 | METHOD FOR CLEANING FOREIGN MATERIALS FILTERING APPARATUS - In a method for cleaning the foreign materials filtering, foreign materials collected in a foreign materials filtering space can be easily removed under a filter unit is separated from or is mounted at a filter cover unit. As a result, can be solved the conventional problems that a net filter has to be kept inside out at the time of a cleaning process to cause a user's hands to become dirty, and there is a difficulty in removing foreign materials from the net filter due to a fibrous characteristic of the net filter. Accordingly, a cleaning operation for the foreign materials filtering apparatus can be facilitated. | 09-11-2008 |
Patent application number | Description | Published |
20110256626 | METHOD FOR PRODUCING INDUCED PLURIPOTENT STEM CELLS WITH HIGH EFFICIENCY AND INDUCED POLURIPOTENT STEM CELLS PROUCED THEREBY - The present invention provides a method for producing customized pluripotent stem cells. Specifically, the present invention comprises following steps: extracting proteins from any of the dedifferentiated stem cells or induced pluripotent stem cells, the said dedifferentiated or pluripotent stem cells being prepared by any known method; introducing the protein extract into the adult somatic cells; and culturing the adult somatic cells to produce pluripotent stem cells having the same pluripotency as that of embryonic stem cells. In addition, pluripotent stem cells produced according to the present method and cell therapeutics comprising the same are provided. The method allows pluripotent stem cells to be produced very easily and at a significantly higher yield, compared to typical methods. | 10-20-2011 |
20120276625 | METHOD FOR PRODUCING MESENCHYMAL STEM CELLS FROM HUMAN PLURIPOTENT STEM CELLS, AND MESENCHYMAL STEM CELLS PRODUCED BY SAME - Provided is a method for producing mesenchymal stem cells from human pluripotent stem cells, the method including: a) forming embryonic bodies from human pluripotent stem cells; b) attaching the embryonic bodies to a culture dish to induce natural differentiation of the embryonic bodies into mesenchymal stem cells; and c) performing continuous proliferative culturing of the mesenchymal stem cells while still maintaining the identity of the mesenchymal stem cells. Also, provided is a standardized method for inducing differentiation of mesenchymal stem cells, which can be broadly applied to all human pluripotent stem cells regardless of a difference in the genetic background thereof. Ultimately, the present invention can continuously mass-produces the mesenchymal stem cells necessary for regenerative medicine and cell therapy by using human pluripotent stem cells, thereby realizing practical uses of cell therapy products, and further the present invention is expected to highly contribute to treatments of incurable diseases, such as cardiovascular diseases and neurological disorders. | 11-01-2012 |
20130164841 | METHOD FOR INDUCING HUMAN BLOOD-BORN HEMATOSPHERES THROUGH AGGREGATE CULTURE AND EXPANDING BLOOD ADULT STEM CELLS AND PROGENITOR CELLS, AND STEM CELL PREPARED BY THE SAME - The present invention relates to a technique of using monocytic blood cells to effectively culture and proliferate blood adult stem cells and progenitor cells that only exist in small quantities to effectively obtain large quantities of stem cells. According to the present invention, the limitation of being able to derive only small quantities of stem cells from blood can be overcome, and the pluripotency of stem cells can easily be obtained. | 06-27-2013 |
20140171489 | HUMAN RESISTIN RECEPTOR AND USE THEREOF - The present invention concerns a human resistin receptor. More particularly, the present invention provides a method for screening a receptor of human resistin protein, a method for preventing or treating an inflammatory disease and arteriosclerosis using an expression- or activity-regulator for a human resistin receptor, and a pharmaceutical composition including an expression- or activity-regulator for the human resistin receptor. The method for screening a human resistin protein receptor according to the present invention enables separation of a receptor which directly binds to resistin from human monocyte, reveals a mechanism of signal transduction of the resistin receptor, and therefore, is expected to contribute to regulation of an inflammatory effect of monocyte, molecular detection of causes for vascular inflammation and arteriosclerosis, and developments of prevention and a treating agent for an inflammatory disease and arteriosclerosis. | 06-19-2014 |
20150157663 | Pharmaceutical Composition Comprising Human-Blood-Derived-Cell Mass - There are provided a pharmaceutical composition for treating immune-related diseases, a pharmaceutical composition for treating ischemic diseases, a pharmaceutical composition for promoting lymphangiogenesis, a pharmaceutical composition for treating neurological diseases, a pharmaceutical composition for treating metabolic diseases, and the like, which contain blood-born hematospheres, and more specifically, may differentiate into inflammatory mononuclear cells, vascular endothelial cells, vascular smooth muscle cells, lymphatic vessel adult stem cells and progenitor cells, neural progenitor cells and nerve cells, insulin secreting cells, and the like by effective 3D culturing using blood mononuclear cells. Therefore, the present invention is expected to be used for development of a cell therapeutic agent for various types of diseases. Also, when blood-born hematospheres according to the present invention are used, it is possible to address previous problems associated with development of a stem cell therapeutic agent such as tumor occurrence, immune rejection, ethical issues, and difficult differentiation methods. | 06-11-2015 |
Patent application number | Description | Published |
20110285640 | ELECTRIC FIELD SHIELDING FOR IN-CELL TOUCH TYPE THIN-FILM-TRANSISTOR LIQUID CRYSTAL DISPLAYS - Displays such as liquid crystal displays may be used in electronic devices. During operation of a display, electrostatic charges on the surface of the display may give rise to electric fields. One or more electric field shielding layers may be provided in the display to prevent the electric fields from disrupting operation of the liquid crystals material in the display. The shielding layers may be formed at a location in the stack of layers that make up the display that is above the liquid crystal material of the display. Touch sensors and thin film transistors may be located below the shielding layer. | 11-24-2011 |
20110298833 | HIGH CONTRAST LIQUID CRYSTAL DISPLAY - Devices and methods related to high-contrast liquid crystal displays (LCDs) are provided. For example, such an electronic device may include an LCD with two liquid crystal alignment layers not symmetric to one another and upper and lower polarizing layers respectively above and below the alignment layers. Light transmittance through the plurality of pixels may increase monotonically with gray scale voltage. The display may operate using a gray scale level | 12-08-2011 |
20120154699 | DISPLAYS WITH MINIMIZED CROSSTALK - Display ground plane structures may contain slits. Image pixel electrodes in the display may be arranged in rows and columns. Image pixels in the display may be controlled using gate lines that are associated with the rows and data lines that are associated with the columns. An electric field may be produced by each image pixel electrode that extends through a liquid crystal layer to an associated portion of the ground plane. The slits in the ground plane may have a slit width. Data lines may be located sufficiently below the ground plane and sufficiently out of alignment with the slits to minimize crosstalk from parasitic electric fields. A three-column inversion scheme may be used when driving data line signals into the display, so that pairs of pixels that straddle the slits are each driven with a common polarity. Gate line scanning patterns may be used that enhance display uniformity. | 06-21-2012 |
20120313881 | DISPLAY SCREEN SHIELD LINE SYSTEM - Electrical shield line systems are provided for openings in common electrodes near data lines of display and touch screens. Some displays, including touch screens, can include multiple common electrodes (Vcom) that can have openings between individual Vcoms. Some display screens can have an open slit between two adjacent edges of Vcom. Openings in Vcom can allow an electric field to extend from a data line through the Vcom layer. A shield can be disposed over the Vcom opening to help reduce or eliminate an electric field from affecting a pixel material, such as liquid crystal. The shield can be connected to a potential such that electric field is generated substantially between the shield and the data line to reduce or eliminate electric fields reaching the liquid crystal. | 12-13-2012 |
20120320327 | VARIABLE WIDTH SEAL - Forming a seal between plates (e.g., glass plates within an LCD or electrodes within an OLED display) using a non-uniform pattern of adhesive applied between the plates is disclosed. The pattern of adhesive can include more adhesive material in portions of the plate that are expected to experience higher levels of stress. The pattern of adhesive can be determined based at least in part on the width of the surface of the plates that contact each other, where wider and narrower portions of the surface can have different adhesive patterns. The amount of adhesive applied to the plates can be varied by adjusting the speed at which a dispensing nozzle traverses the contact surface of the plate, the flow rate at which adhesive is dispensed from the nozzle, or both. | 12-20-2012 |
20120327321 | DISPLAY PIXEL HAVING OXIDE THIN-FILM TRANSISTOR (TFT) WITH REDUCED LOADING - Disclosed embodiments relate to a thin-film transistor (TFT) for use in a display device. The display device may include a liquid crystal display (LCD) panel having multiple pixels arranged in rows and column, with each row corresponding to a gate line and each column corresponding to a source line. Each of the pixels includes a pixel electrode and a TFT. The TFT may include a metal oxide semiconductor channel between a source and drain. For each TFT, holes may be formed in the gate line in a region beneath the source and/or the drain. The holes may be formed such that the source and drain only partially overlap the holes. The presence of the holes reduces the area of the gate line, which may reduce parasitic capacitance and improve loading. This may provide improved panel performance, which may reduce the appearance of certain visual artifacts. | 12-27-2012 |
20130044120 | THERMAL COLOR SHIFT REDUCTION IN LCDS - Systems, methods, and devices are provided for an electronic display with thermally compensated pixels. Such an electronic display may have an array of pixels, at least some of which may be thermally compensated pixels that exhibit reduced color shift over a 20° C. change in temperature. These thermally compensated pixels may have numbers of pixel electrode fingers, pixel electrode widths and spacings, cell gap depths, and/or pixel edge distances that cause the array of pixels to exhibit a reduced color shift than otherwise (e.g., a color shift of less than delta u′v′ of about 0.0092 from a starting white point) when the temperature of the electronic display changes from about 30° C. to about 50° C. | 02-21-2013 |
20130076600 | DATA LINE-TO-PIXEL DECOUPLING - Embodiments of the present disclosure relate to display devices and electronic devices incorporating a data line distribution segment between neighboring pixel electrodes. Specifically, embodiments of the present disclosure employ a uniformly distributed data line distribution segment coupled to a data line so as to cause a substantially uniform data line-to-pixel electrode capacitance with the neighboring pixel electrodes even when the data line is disposed closer to one of the neighboring pixel electrodes than the other. | 03-28-2013 |
20130128193 | Displays with Multilayer Masks and Color Filters - An electronic device may have a display such as a liquid crystal display. The display may have multiple layers of material such as a color filter layer and a thin-film transistor layer. An opaque masking layer may be formed on a display layer such as the color filter layer. In an inactive portion of the display, the opaque masking layer may form a rectangular ring that serves as a border region surrounding a rectangular active portion of the display. In the active portion of the display, the opaque masking layer may be patterned to from an opaque matrix that separates color filter elements in an array of color filter elements. The opaque masking layer and color filter elements may be formed from polymers such as photoresist. The opaque masking layer may include a black pigment such as carbon black. Color filter elements and opaque masking material may include multiple sublayers. | 05-23-2013 |
20130147774 | DISPLAYS WITH MINIMIZED CROSSTALK - Display ground plane structures may contain slits. Image pixel electrodes in the display may be arranged in rows and columns. Image pixels in the display may be controlled using gate lines that are associated with the rows and data lines that are associated with the columns. An electric field may be produced by each image pixel electrode that extends through a liquid crystal layer to an associated portion of the ground plane. The slits in the ground plane may have a slit width. Data lines may be located sufficiently below the ground plane and sufficiently out of alignment with the slits to minimize crosstalk from parasitic electric fields. A three-column inversion scheme may be used when driving data line signals into the display, so that pairs of pixels that straddle the slits are each driven with a common polarity. Gate line scanning patterns may be used that enhance display uniformity. | 06-13-2013 |
20130154949 | Displays with Light-Curable Sealant - An electronic device may have a display such as a liquid crystal display. The display may include a layer of liquid crystal material interposed between a color filter layer and a thin-film transistor layer. The thin-film transistor layer may be provided with capacitive touch sensor electrodes. Wide metal lines on the thin-film transistor layer may be used to inhibit parasitic capacitances during touch sensor mode. The color filter layer may include a layer of black masking material that surrounds the active display area. A light-curable adhesive may used to attach the color filter layer to the thin-film transistor layer. Openings may be formed in the black masking material and in the metal lines on the thin-film transistor layer. The adhesive may be cured by applying ultraviolet light to the adhesive through the openings in the black masking material and through the openings in the metal lines. | 06-20-2013 |
20130235003 | GATE LINE DRIVER CIRCUIT FOR DISPLAY ELEMENT ARRAY - Gate line driver circuitry applies an output pulse to each of several gate lines for a display element array. The circuitry has a number of gate drivers each being coupled to drive a respective one of the gate lines. Each of the gate drivers has an output stage in which a high side transistor and a low side transistor are coupled to drive the respective gate line, responsive to at least one clock signal. A pull down transistor is coupled to discharge a control electrode of the output stage. A control circuit having a cascode amplifier is coupled to drive the pull down transistor as a function of a) at least one clock signal and b) feedback from the control electrode. Other embodiments are also described and claimed. | 09-12-2013 |
20130235020 | PIXEL INVERSION ARTIFACT REDUCTION - A system and device for driving high resolution monitors while reducing artifacts thereon. Utilization of Z-inversion polarity driving techniques to drive pixels in a display reduces power consumption of the display but tends to generate visible horizontal line artifacts caused by capacitances present between the pixels and data lines of the display. By introducing a physical shield between the pixel and data line elements, capacitance therebetween can be reduced, thus eliminating the cause of the horizontal line artifacts. The shield may be a common voltage line (Vcom) of the display. | 09-12-2013 |
20130265521 | Displays with Low Reflectance Border Regions - An electronic device may have a display such as a liquid crystal display. A color filter layer may be formed on a display layer such as a transparent substrate layer of the display. The color filter layer may include an array of color filter elements on an inner surface of the transparent substrate layer. The color filter layer may include opaque masking material. In an inactive portion of the display, the opaque masking material may be formed over the color filter elements and interposed between the color filter elements. In the inactive portion of the display, the opaque masking material and the color filter elements may form a ring that serves as a border region surrounding an active portion of the display. In the active portion of the display, the opaque masking layer may be patterned to from an opaque matrix that separates the color filter elements. | 10-10-2013 |
20130329150 | COLUMN SPACER DESIGN FOR A DISPLAY INCORPORATING A THIRD METAL LAYER - A display that contains a column spacer arrangement which takes advantage of a protrusion on a TFT substrate is provided. One set of column spacers is disposed on top of the protrusion, while a second set of column spacers of substantially the same height as the first set of column spacers are disposed throughout the display. In this way, the display is adequately protected against deformation from external forces while at the same maintaining enough room to allow for a liquid crystal to spread out during the manufacturing process. | 12-12-2013 |
20140042406 | Flexible Displays - An electronic device may be provided with an organic light-emitting diode display with minimized border regions. The border regions may be minimized by providing the display with bent edge portions having neutral plane adjustment features that facilitate bending of the bent edge portions while minimizing damage to the bent edge portions. The neutral plane adjustment features may include a modified backfilm layer of the display in which portions of the backfilm layer are removed in a bend region. A display device may include a substrate, a display panel on the substrate having display pixels, and peripheral circuitry proximate the display panel and configured to drive the display pixels. A portion of the periphery of the substrate may be bent substantially orthogonal to the display panel to reduce an apparent surface area of the display device. The bent portion may include an electrode for communication with the peripheral circuitry. | 02-13-2014 |
20140049721 | Displays with Shielding Layers - An electronic device may have a display such as a liquid crystal display. The display may have a color filter layer and a thin-film transistor layer. An opaque masking layer may be formed on the color filter layer. An active portion of the display may contain an array of display pixels that are controlled by control signals that are provided over intersecting gate lines and data lines. In an inactive portion of the display, gate driver circuits may be used to generate gate line signals for the gate lines. Portions of the gate lines in the gate driver circuitry, power supply lines, and common electrode lines may be formed on the thin-film-transistor layer. These lines may be electromagnetically shielded using indium tin oxide shielding layers to prevent electric fields from inducing charge in the opaque masking layer and thereby causing color artifacts. | 02-20-2014 |
20140055702 | Displays with Bent Signal Lines - A display may be provided with an active central region and a peripheral inactive region. The display may have one or more flexible edges in the peripheral inactive region. Conductive lines may pass between components in the active central region such as display pixels and touch sensor electrodes and components in the inactive peripheral region such as gate driver circuitry and patterned interconnect lines. Each conductive line may have an unbent segment on a portion of a display layer in the active central region and may have a segment on the bent edge of the display layer. The display layer may be formed from a polymer or other flexible material. The bent segments may be configured to be less susceptible to increases in resistance from bending than the unbent segments. | 02-27-2014 |
20140098332 | Displays With Logos and Alignment Marks - An electronic device may be provided with a display mounted in a housing. The display may include a color filter layer, a liquid crystal layer, and a thin-film transistor layer. The color filter layer may form the outermost layer of the display. A color filter layer substrate in the color filter layer may have opposing inner and outer surfaces. A layer of patterned metal on the inner surface may form metal alignment marks. The metal alignment marks may include alignment marks for color filter elements, alignment marks for a black matrix layer that is formed on top of the color filter elements, and post spacer alignment marks. The layer of patterned metal may also form structures such as logo structures that are visible on the outer surface in an inactive border region of the display. | 04-10-2014 |
20140141565 | GATE INSULATOR UNIFORMITY - Embodiments of the present disclosure relate to display devices and methods for manufacturing display devices. Specifically, embodiments of the present disclosure employ an enhanced etching process to create uniformity in the gate insulator of thin-film-transistor (TFTs) by using an active layer to protect the gate insulator from inadvertent etching while patterning an etch stop layer. | 05-22-2014 |
20140184057 | Narrow Border Displays For Electronic Devices - An electronic device may be provided with an organic light-emitting diode display with minimized border regions. The border regions may be minimized by providing conductive structures that pass through polymer layers of the display and/or conductive structures that wrap around an edge of the display and couple conductive traces on the display to conductive traces on additional circuitry that is mounted behind the display. | 07-03-2014 |
20140240985 | Electronic Device With Reduced-Stress Flexible Display - An electronic device may have a flexible display. The display may have portions that are bent along a bend axis. The display may have display circuitry such as an array of display pixels in an active area and signal lines, thin-film transistor support circuitry and other display circuitry in an inactive area of the display surrounding the active area. The display circuitry may be formed on a substrate such as a flexible polymer substrate. The flexible polymer substrate may be formed by depositing polymer on a support structure that has raised portions. | 08-28-2014 |
20140299884 | Flexible Display With Bent Edge Regions - An electronic device may have a flexible display with portions that are bent along a bend axis. The display may have display circuitry such as an array of display pixels in an active area. Contact pads may be formed in an inactive area of the display. Signal lines may couple the display pixels to the contact pads. The signal lines may overlap the bend axis in the inactive area of the display. During fabrication, an etch stop may be formed on the display that overlaps the bend axis. The etch stop may prevent over etching of dielectric such as a buffer layer on a polymer flexible display substrate. A layer of polymer that serves as a neutral stress plane adjustment layer may be formed over the signal lines in the inactive area of the display. Upon bending, the neutral stress plane adjustment layer helps prevent stress in the signal lines. | 10-09-2014 |
20150053935 | Organic Light-Emitting Diode Displays With Semiconducting-Oxide and Silicon Thin-Film Transistors - An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure. | 02-26-2015 |
20150090970 | Organic Light-Emitting Diode Displays With White Subpixels - An electronic device may include a display having an array of organic light-emitting diode display pixels that produce light that forms an image. Color filter elements may be used to allow the display to present color images. Each display pixel may have a red subpixel, a blue subpixel, a green subpixel, and a white subpixel. To adjust the color coordinates of the white pixel and thereby ensure that the light from the white pixel has a desired white point, part of the white subpixel may be overlapped by an area of colored color filter material. The white subpixel may, for example have a rectangular white area within which a patch of blue color filter material may be provided to make the white light from the white subpixel more bluish than it would be without the patch of blue color filter material. | 04-02-2015 |
20150109276 | Organic Light Emitting Diode Displays with Improved Driver Circuitry - An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage. | 04-23-2015 |
20150109279 | Organic Light Emitting Diode Displays with Improved Driver Circuitry - An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage. | 04-23-2015 |
20150123883 | Display With Hybrid Progressive-Simultaneous Drive Pattern - A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. Display driver circuitry may simultaneously compensate multiple rows of the display pixels for drive transistor threshold voltage variations by supplying a common reference voltage over the data lines during a common compensation period. The display data may then be loaded into the rows sequentially before simultaneously commencing emission in each of the compensated and programmed rows. | 05-07-2015 |
20150144892 | Capacitor Structures for Display Pixel Threshold Voltage Compensation Circuits - A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a thin-film drive transistor. Each display pixel may have thin-film transistors and capacitor structures that form a circuit for compensating the drive transistor for threshold voltage variations. The capacitor structures may be formed from interleaved stacked conductive plates. The conductive plates may be formed from layers of material that are used in forming the drive transistor and other thin-film transistors such as a semiconductor layer, a first metal layer, a second metal layer, a third metal layer, and interposed dielectric layers. | 05-28-2015 |
20150145849 | Display With Threshold Voltage Compensation Circuitry - A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensation and programming operations. Each display pixel may have five p-type transistor and two capacitors. One of the five p-type transistors may serve as the drive transistor and may be compensated using the remaining four of the p-type transistors and the two capacitors. A first of the capacitors may be coupled between the gate and source of the drive transistor. A second of the capacitors may have a terminal coupled to the source. Alternatively, each display pixel may have six p-type transistors and a single capacitor. The six p-type transistors may include a drive transistor having a gate coupled to the capacitor. | 05-28-2015 |
20150206931 | Organic Light-Emitting Diode Display with Bottom Shields - A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line. | 07-23-2015 |
20150268775 | Flexible Displays with Strengthened Pad Area - An electronic device may have a flexible display with portions that can be bent. The display may include an array of display pixels in an active area. Contact pads may be formed in an inactive area of the display. Display circuitry in the active area may exhibit a given stack height, whereas display circuitry in the inactive area may exhibit a stack height that is less than the given stack height. In particular, the contact pads may be formed directly on a multi-buffer layer that sits directly on a flexible display substrate. Passivation material may be selectively formed only at the edges of the contact pad on the multi-buffer layer. The multi-buffer layer may be formed at a distance from the edge of the flexible display substrate to minimize cracking in the multi-buffer layer. | 09-24-2015 |
Patent application number | Description | Published |
20100014331 | Power Converter, Switching Control Device Thereof, And Driving Method Thereof - A power converter according to the present invention includes a power supply unit, an output unit, and a switching controller. The power supply unit includes a primary coil of a transformer that receives an input voltage, a gate electrode, and a switch having a first electrode and a second electrode that is connected to the primary coil. The output unit includes a secondary coil of the transformer, and outputs an output voltage that is converted from the input voltage by the transformer. The switching controller includes a feedback terminal that receives a feedback voltage corresponding to the output voltage, generates a burst voltage by compensating the feedback voltage according to a maximum current value that can flow between the second electrode and the first electrode of the switch, determines whether to perform a burst mode operation according to the burst voltage, and transmits a gate signal according to performance of the burst mode operation to the gate electrode of the switch. | 01-21-2010 |
20100039834 | Power Converter, And Switching Controller And Driving Method Thereof - In a power converter, a primary coil of a transformer receives an input voltage, and a first terminal of a switch is coupled to the primary coil. An output unit includes a secondary coil of the transformer, and outputs an output voltage to which the input voltage is converted by the transformer. A switching controller receives a feedback voltage corresponding to the output voltage and a sensing voltage corresponding to a current flowing between the first terminal and a second terminal of the switch. The switching controller determines whether to perform an operation of a burst mode based on the feedback voltage. The switching controller generates a control signal by comparing the sensing voltage with a comparison voltage during a first period of the burst mode, generates the control signal by comparing the sensing voltage with a voltage corresponding to the feedback voltage during a second period of the burst mode, and transmits the control signal to a control terminal of the switch. | 02-18-2010 |
20100194463 | SWITCH CONTROL DEVICE AND SWITCH CONTROL METHOD - The present invention relates to a switch control device and a switch control method. The present invention controls a switching operation of a power switch that controls output power of a switching mode power supply (SMPS). The present invention generates an operation current corresponding to an input voltage of the SMPS and counts a compensation period in which a power supply voltage generated by the operation current increases from a predetermined counter low-reference voltage to a predetermined counter high-reference voltage. The present invention generates a compensation feedback current depending on the count result, generates a total feedback current by summing a main feedback current having a predetermined value and the compensation feedback current, and generates a power limit current of which a maximum value increases and decreases depending on the total feedback current. Turn-off of the power switch is determined by comparing the current flowing on the power switch with the power limit current. | 08-05-2010 |
20100270984 | POWER FACTOR CORRECTION CIRCUIT AND DRIVING METHOD THEREOF - The present invention relates to a power factor correction circuit and a power factor correction method. | 10-28-2010 |
20110095732 | POWER FACTOR CORRECTION CIRCUIT AND DRIVING METHOD THEREOF - The present invention relates to a power factor correction circuit and a driving method thereof. | 04-28-2011 |
20110095733 | POWER FACTOR CORRECTION CIRCUIT AND DRIVING METHOD THEREOF - The present invention relates to a power factor correction circuit and a driving method thereof. | 04-28-2011 |
20110102950 | POWER FACTOR CORRECTION CIRCUIT AND DRIVING METHOD THEREOF - The present invention relates to a power factor correction circuit and a driving method thereof. | 05-05-2011 |
20110221402 | POWER FACTOR CORRECTION CIRCUIT AND DRIVING METHOD THEREOF - The present invention relates to a power factor correction circuit and a driving method thereof. | 09-15-2011 |
20120201055 | POWER SUPPLY AND APPARATUS AND METHOD FOR CONTROLLING LINK VOLTAGE CONTROL SWITCH - A power supply includes a rectifier for rectifying an AC line voltage to generate a link voltage, a link capacitor for charging the link voltage, a control switch for controlling charge of the link capacitor, a converter for converting the link voltage to a DC voltage, and a switch controller. When the converter operates in a standby operation mode, the switch controller controls on-off of the control switch through a pulse signal having an on-time determined based on a peak value of a detected AC line voltage. | 08-09-2012 |
20120262132 | OVERVOLTAGE REPETITION PREVENTION CIRCUIT, METHOD THEREOF, AND POWER FACTOR COMPENSATION CIRCUIT USING THE SAME - The present invention relates to an overvoltage repetition prevention circuit, a method thereof, and a power factor correction circuit including the same. | 10-18-2012 |
20130027013 | ERROR VOLTAGE GENERATION CIRCUIT, SWITCH CONTROL CIRCUIT COMPRISING THE SAME, AND POWER FACTOR CORRECTOR COMPRISING THE SWITCH CONTROL CIRCUIT - The present invention relates to an error voltage generation circuit, a switch control circuit, and a power factor corrector. The error voltage generation circuit generates an error voltage using an error input voltage corresponding to an output voltage of a power factor corrector and a soft start voltage. The error voltage generation circuit samples an error input voltage at an AC input supply time point of the power factor corrector and holes a sampling voltage according to the sampled error input voltage during a soft start period. The error voltage generation circuit generates a soft start voltage increasing from a start voltage corresponding to the sampling voltage. The switch control circuit controls a duty of a power switch of the power factor corrector using the error voltage. | 01-31-2013 |
20130044520 | SWITCH CONTROL CIRCUIT, POWER FACTOR CORRECTOR INCLUDING THE SAME, AND DRIVING METHOD OF THE POWER FACTOR CORRECTOR - The present invention relates to a switch control circuit, a power factor corrector including the same, and a driving method thereof. According to an exemplary embodiment of the present invention, a turn-on time of a power switch is controlled according to a zero crossing voltage to sense a voltage of both terminals of the power switch, and a turn-off time of the power switch is controlled according to a feedback voltage corresponding to the output voltage. At this time, the switching frequency of the power switch is sensed by the zero crossing voltage and the switching frequency is restricted by a predetermined threshold frequency. | 02-21-2013 |
20130258722 | PHASE-CUT PRE-REGULATOR AND POWER SUPPLY COMPRISING THE SAME - A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result. | 10-03-2013 |