Class / Patent application number | Description | Number of patent applications / Date published |
349063000 | Specifically for guiding light in a front-lit device | 24 |
20080278658 | FRONT LIGHT UNIT AND FLAT DISPLAY APPARATUS EMPLOYING THE SAME - A front light unit and a flat panel display apparatus including the front light unit are provided. The front light unit includes a light source unit and a light guide plate (LGP) which has a plate shape and which guides light emitted by the light source unit. The LGP has a rear surface through which the guided light exits and a front surface opposing the rear surface. The front light unit also includes a front polarizing plate disposed opposite the front surface of the LGP. The front polarizing plate has a polarizer which transmits only light polarized in one direction. The flat panel display apparatus including the front light unit can provide an improved contrast ratio on a front side thereof. | 11-13-2008 |
20090015751 | Liquid Crystal Display Device and Mobile Station Having the Same - A liquid crystal display device includes a transflective liquid crystal panel, a front light unit for supplying a light for displaying an image, and a micro lens sheet for receiving the light incident from the front light unit, and condensing the incident light on the transflective liquid crystal panel. | 01-15-2009 |
20090046218 | ELECTRONIC DEVICE WITH LIQUID CRYSTAL DISPLAY - An electronic device, such as personal computer, incorporating a liquid crystal panel which uses LEDs as an illuminating light source for a liquid crystal panel to reduce power consumption and size of the electronic device. When 3-color LED lamps | 02-19-2009 |
20090091685 | LIQUID CRYSTAL DISPLAY DEVICE VIEWABLE FROM BOTH SURFACES AND PORTABLE APPARATUS USING SAME - In front of a liquid crystal display element, a surface light source is arranged which emits a light toward the liquid crystal display element and lets lights coming from its front and its back permeate therethrough. The liquid crystal display element has reflection/permeation means which is provided behind a liquid crystal cell and a liquid crystal layer, and which reflects a part of a light that comes to each of a plurality of pixels from the front of the liquid crystal cell, and lets the other part of the light permeate the reflection/permeation means. | 04-09-2009 |
20090122226 | Liquid Crystal Display Device and Mobile Station Having the Same - A liquid crystal display device includes: a transreflective liquid crystal panel; a front light unit supplying light to the transreflective liquid crystal panel; and a polarizer disposed on the transreflective liquid crystal panel and having an upper surface where fine protrusions are formed. In another aspect of the present invention, a liquid crystal display device includes: a transreflective liquid crystal panel; a first retardation compensation film formed under the transreflective liquid crystal panel; a first polarizer formed under the first retardation compensation film; a second retardation compensation film formed on the transreflective liquid crystal panel; and a second polarizer formed on the second retardation compensation film and having an upper surface where fine protrusions are formed. In a further another aspect of the present invention, a mobile station includes: a liquid crystal display device including a transreflective liquid crystal panel, a front light unit supplying light to the transreflective liquid crystal panel, and a polarizer disposed on the transreflective liquid crystal panel and having an upper surface where fine protrusions are formed; a communication unit performing communication with external devices; and a controller controlling the communication unit and an image display operation of the liquid crystal display device. | 05-14-2009 |
20090135334 | DISPLAY APPARATUS - The present invention is directed to the provision of a high-contrast display apparatus. The display apparatus of the present invention includes a light source, a display section having an electro-optical conversion device for transmitting or scattering light introduced from the light source, light control means for reflecting the light introduced from the light source at a prescribed reflection angle, and a light reflecting member for causing the light reflected by the light control means and transmitted through the electro-optical conversion device to be reflected outside the field of view of a viewer who is viewing the display section straight on. | 05-28-2009 |
20090231512 | DISPLAY AND REFLECTION BOARD - A display is provided that comprises a reflection board and a display element. The reflection board includes a plurality of first inclinations and a plurality of second inclinations which are alternately arranged to form an uneven reflective surface to reflect and diffuse incident light. The display element has controllable transparency at each pixel and is disposed in front of the reflective surface. The mean inclination angle of the first inclination occurs within a range of 10 to 25 degrees. | 09-17-2009 |
20090284684 | Coupling Device for Use in Optical Waveguides - An optical coupling device for coupling light with an optical waveguide comprises a mirror formed within an optical waveguide. The mirror comprises a first material, a first reflective end, and a second reflective end. The first material is light conducting and has a first refractive index. The first and second reflective ends reflect and transmit light. The mirror has an axis line. The optical coupling device is useful for extracting light from a waveguide and providing a backlight for a liquid crystal display. | 11-19-2009 |
20090316071 | Dual liquid crystal display device - A dual liquid crystal display (LCD) device including a first LCD panel displaying an image on a first surface; a second LCD panel formed on the same substrate to display an image on a second surface; a light source disposed at an adjacent side under the first LCD panel; a light guide disposed under the first and second LCD panels and including a first light guide block corresponding to the first LCD panel and having dot patterns formed in a first surface and a second light guide block corresponding to the second LCD panel and having taper-cascade grooves formed on a first surface; and a housing settling the first and second LCD panels, the light source and the light guide and having an opening to correspond to an image display surface of the second LCD panel. | 12-24-2009 |
20100053501 | Liquid Crystal Display Device - A liquid crystal display device includes at least a liquid crystal display panel, which uses a pair of transparent substrates which are arranged to face each other with liquid crystal disposed therebetween as an envelope, and a light guide plate, which guides light from a light source, being sequentially arranged from a viewer side. The liquid crystal display panel forms light reflection layers on a liquid-crystal-side surface of the light-guide-plate side transparent substrate using portions of respective pixels and forms color filters which face the light reflection layers on the liquid-crystal-side surface of one transparent substrate or a liquid-crystal-side surface of the other transparent substrate which faces the one transparent substrate. Light from the light source is irradiated such that respective colors thereof, which constitute three primary colors, are sequentially changed over. | 03-04-2010 |
20100149456 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 06-17-2010 |
20100231825 | ILLUMINATION APPARATUS, DISPLAY APPARATUS, AND ELECTRONIC DEVICE INCLUDING A DISPLAY APPARATUS - An illumination apparatus includes: a substrate; reflective layers formed upon the substrate; and light-emitting layers formed upon respective reflective layers and disposed so as to overlap the respective reflective layers when viewed from above. The reflective layers are formed in a convex shape protruding toward the respective light-emitting layers, and when reflecting light irradiated from the light-emitting layers, diffuse and reflect the light. | 09-16-2010 |
20100283941 | LIQUID CRYSTAL DISPLAY PANEL, LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD OF LIQUID CRYSTAL DISPLAY PANEL - A vertically aligned type liquid crystal display panel with wide viewing angles and high display quality can be provided with high production efficiency. | 11-11-2010 |
20110007241 | POLARIZED LIGHT EMITTING LIGHT GUIDE PLATE, METHOD OF MANUFACTURING THE SAME AND ILLUMINATOR FOR FLAT PANEL DISPLAY DEVICE USING POLARIZED LIGHT EMITTING LIGHT GUIDE PLATE - A polarized light emitting light guide plate includes: a transparent substrate of optically isotropic material, in which the light incident through a lateral side thereof travels; an anisotropic liquid crystal polymer layer formed on an upper surface of the substrate and having first and second refractive indices with respect to first and second perpendicular polarization components; and a polarization separation microstructure formed at an interface between the transparent substrate and the liquid crystal polymer layer, which refracts or reflects the first polarization component and transmits the second polarization component. The refractive index of the polarization separation microstructure is substantially equal to the refractive index of the substrate; the first refractive index of the liquid crystal polymer layer is greater than the refractive index of the substrate, and the second refractive index of the liquid crystal polymer layer light is substantially equal to the refractive index of the substrate. | 01-13-2011 |
20110037924 | DISPLAY APPARATUS AND MOBILE TERMINAL - A display apparatus includes at least three layers respectively including members that transmit light when voltages are applied to the members and disperse the light when the voltages are not applied to the members; light-emitting units that respectively emit light beams of different colors from side surfaces of the at least three layers; transparent layers sealed in spaces among the at least three layers, the transparent layers having a refractive index such that the light beams respectively emitted on the at least three layers from the light-emitting units are totally internally reflected by the at least three layers; and a display control unit that individually switches on and off the voltages to be applied to the at least three layers. | 02-17-2011 |
20110069255 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit that is easy to slim and simplify the configuration is disclosed. The backlight unit includes: a lower case with an opened upper surface; at least one light source unit disposed at an inner side surface of the lower case; and a modularized optical unit disposed parallel to the light source unit and configured to include a light guide plate and optical sheets which are accommodated into a reflection sheet. | 03-24-2011 |
20110176087 | BACKLIGHT UNIT AND DISPLAY DEVICE USING THE SAME - Disclosed are a backlight unit and a display device using the same. The backlight unit includes a light guide plate, a light emitting module provided on at least one lateral surface of the light guide plate to supply light to the light guide plate, and a bottom cover to contain the light guide plate and the light emitting module. The light emitting module includes a substrate including a plurality of through holes and a plurality of light emitting devices which are inserted into the through holes and spaced apart from the light guide plate at a first distance. | 07-21-2011 |
20110242456 | DISPLAY DEVICE - According to one embodiment, a display device includes a display unit and a drive circuit. The display unit includes a first display region to display a first image and a second display region to display a second image. The display unit includes a first support substrate, a second support substrate, and a liquid crystal layer. The second support substrate is disposed to oppose the first support substrate. The liquid crystal layer is interposed between the first support substrate and the second support substrate and is held by the first support substrate and the second support substrate. The drive circuit drives the display unit. | 10-06-2011 |
20110242457 | COMPOSITE COLOR SEPARATION SYSTEM - A composite color separation system, comprises: a light control module, a light guide module and a light splitting module. The light control module has a lighting unit and a lens unit, in which the lighting unit includes an array of lighting elements whereas there are at least two types of lighting elements in the array for emitting at least two beams of different wavelengths. The light from the lighting unit is directed to enter the lens unit before being discharged out of the light control module. The light guide module comprises: a first light incident surface, for receiving the beams from the light control module; a first light emergence surface; and a light guide structure, for guiding the beams to the first light emergence surface where they are discharged out of the light guide module to the light splitting module. The light splitting module is used for splitting the beams. | 10-06-2011 |
20110249219 | INTEGRATED DISPLAY AND PHOTOVOLTAIC ELEMENT - A display device includes a first layer having an optically active display portion, a second layer including a photovoltaic element, and a third layer including electronics operatively coupled to the first layer, wherein the electronics are configured to drive the optically active display portion. Further, the second layer is arranged between the first and third layers. | 10-13-2011 |
20110292320 | BACKLIGHT UNIT AND DISPLAY DEVICE - Disclosed herein are a backlight unit and a display device. The backlight unit includes a bottom cover, a light emitting device module disposed at the lower portion of the inside of the bottom cover, a light guide plate disposed adjacent to the light emitting device module and disposed in front of the bottom cover, at least one optical sheet and a reflective sheet disposed adjacent to the light guide plate, recesses, each of which is disposed with one opened side, disposed at the edges of at least one of the light guide plate, the reflective sheet and the at least one optical sheet, and protrusions disposed at one side of the bottom cover disposed with the light emitting device module so as to be inserted into the recesses of the at least one of the light guide plate, the reflective sheet and the at least one optical sheet. | 12-01-2011 |
20130335673 | DISPLAY DEVICE, MULTI-DISPLAY SYSTEM AND METHOD FOR MANUFACTURING DISPLAY DEVICE - A display device ( | 12-19-2013 |
20140300843 | Light Guiding System, Edge-Lighting Backlight Module and Liquid Crystal Display - A light guiding system includes an ambient light gathering system for absorbing the ambient light to generate absorbed light; multiple light guiding devices each of which includes a light input end near the ambient light gathering system and a light output end near an incident side of a light guiding plate, and multiple light diffusion devices between the light output end and the incident side of the light guiding plate, for broadening a light-emitting angle of the light output end. The absorbed light enters the light input end and is guided to the light output end to form a backlight source. The light guiding system utilizes a light diffusion device to broaden the light-emitting angle of the light output end such that the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised. | 10-09-2014 |
20160187715 | Display Apparatus - Disclosed herein is a display apparatus including a liquid crystal panel in which a liquid crystal material is filled between a display substrate and a rear substrate. A light reflection prevention pattern to suppress reflection of light incident from the rear side is formed at a rear surface of a display substrate, such that the quantity of light passing through the display substrate and transferred to the front of the display apparatus increases, thus improving visibility of the display apparatus. | 06-30-2016 |