Patent application number | Description | Published |
20080291521 | REFLECTIVE UNIT USING ELECTROACTIVE POLYMER AND FLEXIBLE DISPLAY EMPLOYING THE REFLECTIVE UNIT - Provided are a reflective unit using an electroactive polymer and a flexible display. The reflective unit includes: an electroactive polymer layer which becomes strained when a voltage is applied thereto by an electrode; a light reflecting unit reflecting external light and having reflecting cells arranged on the electroactive polymer layer to be spaced apart from one another wherein a distance between the reflecting cells is changed according to the strain of the electroactive polymer layer; and a light blocking layer preventing external light from being reflected by the light reflecting unit and having blocking cells arranged over the light reflecting unit to be spaced apart from one another. | 11-27-2008 |
20080291525 | DISPLAY PIXEL USING ELECTROACTIVE POLYMER AND DISPLAY APPARATUS EMPLOYING THE SAME - Provided are a display pixel using an electroactive polymer and a display apparatus employing the display pixel. The display pixel includes: an electroactive polymer layer, of which shape and/or size is displaced when a voltage is applied thereto; a diffraction grating, of which a pitch and a diffraction angle change according to a displacement of the electroactive polymer layer; and a liquid crystal layer disposed on the diffraction grating and controlling gradation according to a voltage applied thereto. | 11-27-2008 |
20080309857 | METHOD OF ADJUSTING PHOTONIC BANDGAP OF PHOTONIC CRYSTAL, METHOD OF MANUFACTURING REFLECTIVE COLOR FILTER USING THE SAME, AND DISPLAY DEVICE INCLUDING THE REFLECTIVE COLOR FILTER - Provided are a method of adjusting a photonic bandgap of a photonic crystal, a method of manufacturing a reflective color filter using the same, and a display device including the reflective color filter. The method of adjusting a photonic bandgap of a photonic crystal includes forming the photonic crystal having a photonic bandgap on a substrate, and changing the photonic bandgap by irradiating light onto the photonic crystal. In addition, the display device includes a backlight, a transflective liquid crystal panel including liquid crystal cells sealed between first and second substrates. Each liquid crystal cell corresponding to a pixel includes a transmissive area and a reflective area. A transmissive color filter is formed on the first substrate, which faces the backlight, and a reflective color filter is formed on each reflective area. | 12-18-2008 |
20090046367 | REFLECTIVE PLATE, DISPLAY HAVING THE SAME, AND METHOD OF CONTROLLING DISTRIBUTION OF REFLECTED LIGHT - Provided are a reflective plate and a display, and a method of controlling a distribution of reflected light. The reflective plate includes a plurality of diffracting grating cells including gratings reflecting incident light, wherein the gratings are arranged at predetermined intervals, and at least one of an arrangement period and an arrangement direction of each of the gratings of the plurality of diffracting grating cells is adjusted to limit a distribution of reflected light. | 02-19-2009 |
20100320921 | Light emitting device driving apparatus and method for driving the same - The present invention relates to a light emitting device (LED) driving apparatus that constantly maintains the average current flowing onto a plurality of channels. The light emitting device (LED) driving apparatus includes: a LED light source unit in which at least one LED channel is connected in parallel; at least one current detector that is disposed on a low end of a LED channel of the LED light source unit to detect the current flowing onto respective LED channels; at least one channel current controller that generates control signal controlling the average current of the channels by comparing current detected from the channels with reference wave; and a switching element that controls the average current of the LED channels in a PWM scheme according to the control signals. | 12-23-2010 |
20110164318 | DISPLAY DEVICE AND LENTICULAR SHEET OF THE DISPLAY DEVICE - A display device includes a display panel on which a plurality of pixels are arranged in a matrix in a first direction and in a second direction intersecting the first direction, and a lenticular sheet which is disposed above the display panel and includes a plurality of polygonal prism lenses that are arranged in the second direction. Each of the polygonal prism lenses extends in a third direction intersecting the second direction, and includes a plurality of flat surfaces or curved surfaces. | 07-07-2011 |
20110169774 | TOUCH MODULE, DISPLAY DEVICE HAVING THE TOUCH MODULE, AND METHOD FOR DETECTING A TOUCH POSITION OF THE TOUCH MODULE - The present invention relates to a touch module including a light emitting part, a light waveguide, a frustration layer, and a light receiving part. The light emitting part emits light and is disposed along a first direction. The light waveguide includes a first side surface and a second side surface and transmits light incident to the first side surface to the second side surface. The light emitting part is disposed on the first side surface, and the second side surface is disposed opposite to the first side surface along a second direction substantially perpendicular to the first direction. The frustration layer is disposed over the light waveguide and contacts the light waveguide in response to a touch to frustrate a total internal light reflection. The light receiving part is disposed on the second side surface of the light waveguide to detect a position of the touch. The frustration layer includes a plurality of frustration parts, the total internal light reflection is frustrated at a contact surface between a frustration part and the light waveguide, and an area of a first frustration part differs from an area of a second frustration part that is spaced apart from the first frustration part. | 07-14-2011 |
20110195255 | POLYTHIOPHENE-BASED CONDUCTIVE POLYMER MEMBRANE - The present invention relates to a polythiophene-based conductive polymer membrane, which has a conductivity of 1 KΩ/m | 08-11-2011 |
20110216041 | TOUCH PANEL AND TOUCH POSITION DETECTION METHOD OF TOUCH PANEL - A touch panel and a touch position detection method are presented. The touch panel includes: a touch unit, a light source unit array positioned along a first edge of the touch unit and including a first light source and a second light source; and a detection unit array positioned along a second edge and including a detection unit generating a detection signal by detecting light from the light source unit array. The first light source radiates light having a first optical axis, the first optical axis extending in a first direction that makes a first angle with respect to a reference direction, and the second light source radiates light having a second optical axis, the second optical axis extending in a second direction that makes the first angle with respect to the reference direction. The reference direction is perpendicular to the second edge. | 09-08-2011 |
20110221997 | Method of Detecting Touch Position, Touch Position Detecting Apparatus for Performing the Method and Display Apparatus Having the Touch Position Detecting Apparatus - A light waveguide has a rectangular plate shape and is configured to totally reflect internal light arriving at an angle greater than a critical angle. Light emitting parts are disposed at corners of the light waveguide. Each of the light emitting parts emits light once in a period. A first light receiving part is disposed along a first side surface of the light waveguide, and receives light emitted from the light emitting parts adjacent to a second side surface facing the first side surface of the light waveguide. The second light receiving part is disposed along the second side surface of the light waveguide, and receives light emitted from the light emitting parts adjacent to the first side surface. A detecting part detects a touch position based on an amount of the light received by the first and second light receiving parts. | 09-15-2011 |
20110234537 | OBJECT-SENSING DEVICE - An object-sensing device is presented. The device includes a waveguide and a substrate holding a liquid crystal layer, wherein radiation propagates through the waveguide via total internal reflection. A radiation emitting element is positioned along a radiation input surface of the waveguide, and a radiation receiving element is positioned to receive radiation exiting the waveguide. The radiation receiving element may be positioned across the waveguide from the radiation emitting element. Alternatively, the radiation receiving element may be positioned on a surface that contacts the radiation input surface of the waveguide that is optically coupled to the radiation emitting element. | 09-29-2011 |
20120062559 | Method for Converting Two-Dimensional Image Into Stereo-Scopic Image, Method for Displaying Stereo-Scopic Image and Stereo-Scopic Image Display Apparatus for Performing the Method for Displaying Stereo-Scopic Image - In a method for displaying a stereo-scopic image a border for each of multi-viewpoint images is formed around an edge of a display region, and each bordered multi-viewpoint image is converted into a synthetic image. The synthetic image is displayed as a stereo-scopic image in the display region through a lenticular lens inclined by a predetermined angle with respect to a display panel. Therefore, a two-dimensional image may be effectively converted into the stereo-scopic image decreasing saw-edged shapes at the border of the stereo-scopic image, improving display quality. | 03-15-2012 |
20120105750 | IMAGE DISPLAY DEVICE USING DIFFRACTIVE DEVICE - An image display device includes a display panel displaying an image and a diffractive device. The diffractive device operates in a 2D mode to enable perception of a 2D image from the image of the display panel and in a 3D mode to enable perception of the image of the display panel as a 3D image. The diffractive device includes a plurality of unit devices. When the diffractive device operates in 3D mode, at least one of the plurality of unit devices operates in a lens mode and a barrier mode during different periods. | 05-03-2012 |
20120162550 | IMAGE DISPLAY DEVICE USING DIFFRACTIVE ELEMENT - An image display device includes a display panel displaying an image, and a diffractive element formed to operate in a 2D mode or a 3D mode so that the image of the display panel is perceived as a 2D image or a 3D image after passing through the diffractive element. In the image display device, the diffractive element includes a first substrate and a second substrate facing each other, a first electrode layer formed on the first substrate that includes a plurality of zones, a second electrode layer formed on the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. Further, when the diffractive element operates in the 3D mode, a common voltage is applied to the second electrode layer, and polarity of voltages applied to the first electrode layer with respect to the common voltage is inverted every zone. | 06-28-2012 |
20120165444 | Novel Phosphorus Compound, Method of Preparing the Same and Flame Retardant Thermoplastic Resin Composition Including the Same - Disclosed herein is a phosphorus compound represented by Formula 1: | 06-28-2012 |
20120206666 | DISPLAY DEVICE USING SWITCHING PANEL AND METHOD FOR MANUFACTURING SWITCHING PANEL - An image display device includes a display panel which displays an image, and a switching panel which operates in a 2-dimensional (“2D”) mode or in a 3-dimensional (“3D”) mode, where the switching panel controls the image of the display panel to be recognized as a 2D image in the 2D mode and as a 3D image in the 3D mode, where the switching panel includes: a first and second substrates opposite to each other; a first electrode layer on the first substrate; a first alignment layer on the first electrode layer; a second electrode layer on the second substrate; and a liquid crystal layer between the first substrate and the second substrate, where the switching panel includes a unit elements, and when no voltage is applied between the first electrode layer and the second electrode layer, a pretilt angle of the liquid crystal layer is repeated in the unit elements. | 08-16-2012 |
20120229452 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE DIMENSIONAL IMAGE USING THE SAME - A display apparatus includes a display panel, a lens plate and a lens driver. The display panel includes a plurality of unit pixels. The display panel is driven by dividing a single frame into N sub frames. N is a natural number. The lens plate is on the display panel. The lens plate includes a plurality of lenses which convert a two dimensional (“2D”) image displayed on the display panel into a three dimensional (“3D”) image. The lens driver disposes the lenses at a first position during a first sub frame. The lens driver moves the lenses to a second position from the first position and disposes the lenses at the second position during a second sub frame. The second position is shifted by 1/N of a width of the unit pixel from the first position. | 09-13-2012 |
20120300042 | LENS MODULE AND DISPLAY APPARATUS HAVING THE SAME - A lens module includes a lens panel and a lens driving part. The lens panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes first electrodes and second electrodes alternately disposed thereon that partially overlap each other and are electrically insulated from each other. The second substrate is opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The lens driving part provides a substantially equal voltage to both ends of each of the first and second electrodes. | 11-29-2012 |
20130107147 | LENS SUBSTRATE, METHOD OF MANUFACTURING THE LENS SUBSTRATE AND LENS PANEL HAVING THE LENS SUBSTRATE | 05-02-2013 |
20130107174 | TWO-DIMENSIONAL/THREE-DIMENSIONAL SWITCHABLE DISPLAY APPARATUS | 05-02-2013 |
20130120366 | DISPLAY PANEL WITH 3D CAPABILITY AND DISPLAY APPARATUS HAVING THE SAME - A display apparatus having a display panel and a lenticular plate is configured for displaying 3D images. The display panel includes a plurality of light output-controlling portions and a light blocking portion surrounding them. The light output-controlling portions each has a non-rectangular shape, for example a parallelogram shape. A width of the light blocking portion between adjacent light output-controlling portions is determined according to a repetition period of the light output-controlling portions and according to an inclination angle of the lenticular plate. The configuration prevents or suppresses perception of a Moiré artifact pattern. | 05-16-2013 |
20130135545 | TWO-DIMENSIONAL/THREE-DIMENSIONAL SWITCHABLE DISPLAY APPARATUS - A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position. | 05-30-2013 |
20130208020 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE-DIMENSIONAL IMAGE USING THE SAME - A display apparatus includes a display panel including a three-dimensional (“3D”) pixel, including multiple subpixels corresponding to multiple viewpoints, a viewpoint detecting part configured to detect a target viewpoint, a display panel driver configured to generate grayscale data of the subpixels based on the detected target viewpoint, and a light converting element including a light converting axis sequentially corresponding to central regions of the subpixels including colors different from one another And configured to convert an image on the display panel into a 3D image. | 08-15-2013 |
20130208196 | LIQUID CRYSTAL LENS PANEL AND DISPLAY APPARATUS HAVING THE SAME - A liquid crystal lens panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a first base substrate and a plurality of first electrodes disposed on the first base substrate. The second substrate includes a second base substrate disposed to face the first base substrate, the second substrate further including a plurality of second electrodes disposed on the second base substrate. Each of the first base substrate and the second base substrate are rectilinearly shaped to comprise corresponding first sides and second sides, the plurality of first electrodes and the plurality of second electrodes are inclined with respect to the corresponding first sides or second sides, and the plurality of first electrodes comprise a first inclination angle different from a second inclination angle associated with the plurality of second electrodes. | 08-15-2013 |
20130234611 | LIGHT EMITTING DEVICE - Light emitting devices. A light emitting device including a power source; and a plurality of light emitting diode (LED) arrays coupled to the power source unit; and at least one delay unit. Each delay unit is coupled to a corresponding light emitting diode array of the light emitting diode arrays. | 09-12-2013 |
20130250193 | DISPLAY DEVICE - A display device includes a display panel for displaying an image. The display device further includes a lens configured to refract at least a portion of a collimated light having a center ray, a first outermost ray, a second outermost ray, a first plurality of rays between the first outermost ray and the center ray, and a second plurality of rays between the second outermost ray and the center ray. The lens may concentrate the first plurality of rays such that a first position on the display panel has a first light intensity. The lens may concentrate the second plurality of rays such that a second position on the display panel has a second light intensity. Each of the first light intensity and the second light intensity is substantially greater than a center light intensity on the display panel corresponding to at least the center ray. | 09-26-2013 |
20140022219 | DISPLAY DEVICE AND METHOD FOR OPERATING THE DISPLAY DEVICE - A display device includes a display panel configured to receive a first-frame image signal for displaying a first-frame image in a first frame. The display panel is further configured to receive a second-frame image signal for displaying a second-frame image in a second frame that immediately follows the first frame such that the display panel appears to display a transition region associated with a boudary between a portion of the first-frame image and a portion of the second-frame image and moving in a moving direction. The display device further includes an optical effect layer and electrode sets. The electrode sets respectively overlap different portions of the optical effect layer and are configured for sequentially starting affecting the different portions of the optical effect layer such that the optical effect layer appears to display a light-blocking section that moves in the moving direction and overlaps the transition region. | 01-23-2014 |
20140063015 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE DIMENSIONAL IMAGES USING THE SAME - A display apparatus includes a display panel, a light source part and a directional light projecting element. The display panel displays a first image during a first subframe and a different second image during a second subframe. The light source part provides light to the display panel. The directional light projecting element is disposed between the display panel and the light source part. The directional light projecting element includes a barrier part and a lens part disposed above the barrier part. The barrier part has a plurality of barriers defined as a plurality of first electrodes and a plurality of second electrodes crossing the first electrodes. The lens part has a plurality of lenses disposed in a first direction and a second direction crossing the first direction. Each of the lenses corresponds to a subset of plural lenses among the plurality of the barriers. | 03-06-2014 |
20140063379 | LIQUID CRYSTAL LENS PANEL, THREE DIMENSIONAL PANEL ASSEMBLY, AND DISPLAY APPARATUS HAVING THE SAME - A liquid crystal lens panel includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first base substrate, a lens common electrode disposed on the first base substrate, and a first alignment layer disposed on the lens common electrode, the first alignment layer including a first alignment direction. The second substrate includes a second base substrate opposite to the first base substrate, a plurality of lens electrodes that extend in a lens axis and is parallel with each other, and a second alignment layer disposed on the plurality of lens electrodes, the second alignment layer including a second alignment direction substantially perpendicular to the first alignment direction. The liquid crystal layer is disposed between the first and second alignment layers. | 03-06-2014 |
20140092329 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE DIMENSIONAL IMAGE USING THE SAME - A display panel displays a first image during a first subframe and a second image during a second subframe. A display panel driver provides the first and second images to the display panel. A light source part provides light to the display panel. A light converting element is disposed between the display panel and the light source part and includes a barrier part and a lens part disposed on the barrier part. The barrier part has a plurality of independently controllable barrier groups. A position detecting part determines a position of a viewer. A barrier driver controls the barrier part to selectively transmit light from the light source part based on the viewer's position. A single barrier group includes a plurality of barriers, and a single barrier includes a plurality of sub-barriers. | 04-03-2014 |
20140111715 | IMAGE DISPLAY AND LIQUID CRYSTAL LENS THEREFOR - A three-dimensional (“3D”) image display device includes a display panel, and a liquid crystal lens part disposed on the display panel and which selectively provides a two-dimensional (“2D”) image and a 3D stereoscopic image, where the liquid crystal lens part includes: a lower substrate including a plurality of linear electrodes which are disposed in different layers; an upper substrate including a plate electrode; and a lens liquid crystal layer disposed between the lower substrate and the upper substrate, where the linear electrodes in the different layers are alternately arranged in a unit zone of the liquid crystal lens part, and where two adjacent linear electrodes of the linear electrodes are spaced apart from each other when viewed from a top view. | 04-24-2014 |
20140118332 | METHOD OF DRIVING ACTIVE BARRIER PANEL AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A method of driving an active barrier panel, the active barrier panel comprising an electrode unit which has n barrier electrodes operating as an opening part transmitting light and n barrier electrodes operating as a barrier part blocking the light, the method includes calculating a crosstalk distribution of each of observer's left-eye and right-eye corresponding to each of 2n barrier-shift modes, according to an observer's position, dividing an active area of the active barrier panel into at least one barrier block based on a flat portion of the crosstalk distribution, in which a minimum crosstalk is maintained, determining the barrier-shift mode for each barrier block to maintain the minimum crosstalk, and operating the electrode unit in a corresponding barrier block in the determined barrier-shift mode. | 05-01-2014 |
20140118412 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes: a pixel part including a plurality of pixels arranged substantially in a matrix form, where the matrix form includes a unit matrix having X columns in a horizontal direction and Y rows in a vertical direction, where X and Y are natural numbers; and a plurality of light controlling parts inclined with respect to the vertical direction of the pixels on the pixel part at an inclined angle of θ, where the inclined angle of θ satisfies the following equation: θ=tan | 05-01-2014 |
20140118648 | LIQUID CRYSTAL LENS, A LIQUID CRYSTAL MODULE HAVING THE LIQUID CRYSTAL LENS AND A METHOD OF DRIVING THE LIQUID CRYSTAL MODULE - A liquid crystal lens includes a plurality of first sub liquid crystal portions having refractive indexes varied based on voltages applied thereto, a plurality of second sub liquid crystal portions having refractive indexes varied based on voltages applied thereto, where the second sub liquid crystal portions are adjacent to the first sub liquid crystal portions, respectively and a controller which controls the voltages applied to the first sub liquid crystal portions and the voltage applied to the second sub liquid crystal portions to provide a lens part. | 05-01-2014 |
20140285640 | THREE DIMENSIONAL IMAGE DISPLAY DEVICE AND METHOD OF DISPLAYING THREE DIMENSIONAL IMAGE - A 3D image display device includes: a display panel including pixels; a signal controller controlling driving of the display panel; and an image signal processor generating a 3D input image signal based on image information and outputting the generated 3D input image signal to the signal controller. The image signal processor includes a view point generating unit generating view points corresponding to the respective pixels, and a 3D input image signal generating unit generating the 3D input image signal for the respective pixels based on information on a position of the pixel, information on the generated view point for the respective pixel, and the image information. | 09-25-2014 |
20140354613 | DISPLAY DEVICE AND METHOD FOR OPERATING THE DISPLAY DEVICE - A display device includes a display panel configured to receive a first-frame image signal for displaying a first-frame image in a first frame. The display panel is further configured to receive a second-frame image signal for displaying a second-frame image in a second frame that immediately follows the first frame such that the display panel appears to display a transition region associated with a boudary between a portion of the first-frame image and a portion of the second-frame image and moving in a moving direction. The display device further includes an optical effect layer and electrode sets. The electrode sets respectively overlap different portions of the optical effect layer and are configured for sequentially starting affecting the different portions of the optical effect layer such that the optical effect layer appears to display a light-blocking section that moves in the moving direction and overlaps the transition region. | 12-04-2014 |