Patent application number | Description | Published |
20080198294 | LIQUID CRYSTAL DISPLAY DEVICE SWITCHABLE BETWEEN REFLECTIVE MODE AND TRANSMISSIVE MODE BY EMPLOYING ACTIVE REFLECTIVE POLARIZER - A liquid crystal display (LCD) device that is switchable between a transmissive mode and a reflective mode is provided. The LCD device includes a backlight; an active reflective polarizer which operates as a reflector that reflects incident light or as a reflective polarizer that reflects light of a first polarization and transmits light of a second polarization perpendicular to the first polarization, based on whether a magnetic field is applied; and a liquid crystal panel that modulates incident light to form images. The liquid crystal panel includes a liquid crystal layer, a first polarizer that is disposed on a rear surface of the liquid crystal layer and faces the active reflective polarizer, and a second polarizer that is disposed on a front surface of the liquid crystal layer. | 08-21-2008 |
20080252816 | LIQUID CRYSTAL DISPLAY DEVICE HAVING IMPROVED VIEWING ANGLE AND BRIGHTNESS - A liquid crystal display with an improved viewing angle and brightness is provided. The liquid crystal display includes a light source unit and a polarized light guide plate having an incident surface onto which unpolarized light from the light source unit is incident. The polarized light guide plate polarizes, collimates, and out-couples the incident light. The liquid crystal display also includes a liquid crystal panel which modulates the light out-coupled and illuminated from the polarized light guide plate to form images, and a diffusion layer which diffuses the light modulated in the liquid crystal panel. | 10-16-2008 |
20080252823 | DOUBLE-SIDED DISPLAY DEVICE EMPLOYING A POLARIZED LIGHT GUIDE - A double-sided display device is provided which includes: a light source; a polarized light guide having a first layer having an incident surface which receives light from the light source and which guides the light; a second layer formed on the first layer of an optically isotropic material, on which beam out-coupling units are repeatedly arranged; and a third layer formed of an optically anisotropic material disposed on the second layer, which polarizes and out-couples light illuminated from the light source; and a double-sided display panel which displays images on both sides using the light out-coupled from the polarized light guide. | 10-16-2008 |
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 |
20080309669 | METHOD AND APPARATUS FOR GENERATING ELEMENTAL IMAGE IN INTEGRAL IMAGING - A method and apparatus for generating an elemental image by an integral image technique are provided. The method includes normalizing coordinates of dots in a frustum formed in perspective projection by mapping the dots in the frustum into a cube; reversing a grade of depth of the cube viewed from a particular viewpoint; and generating a two-dimensional (2D) elemental image necessary for three-dimensional (3D) display from dots in the cube whose grade of depth is reversed. | 12-18-2008 |
20090004375 | METHOD OF NANO-PATTERNING BLOCK COPOLYMERS AND METHOD OF MANUFACTURING POLARIZER AND COLOR FILTER USING THE SAME - Provided is a method of nano-patterning block copolymers and a method of manufacturing a polarizer using the same. The method of nano-patterning block copolymers includes coating block copolymers on a lower substrate to a predetermined thickness, forming a thickness gradient by patterning the block copolymers to have a predetermined aspect ratio, and aligning self-assembled block copolymers in a direction of the thickness gradient by heat-treating the block copolymers having the thickness gradient. | 01-01-2009 |
20090021948 | OPTICAL GUIDE BAR, LINE LIGHT SOURCE DEVICE, SURFACE LIGHT ILLUMINATION DEVICE, AND DISPLAY APPARATUS - Provided is an optical guide bar including: a light exit portion; light incident portions, on which light is incident, formed on both sides of the light exit portion; and a reflective portion facing the light exit portion and including a prism pattern that reflects light transmitted through the light incident portions towards the light exit portion. A shape of the reflective portion is determined in consideration of an effective light emission width of the light incident portion so that the intensity of light at any portion of the reflective portion is uniform. | 01-22-2009 |
20090022900 | METHOD FOR MANUFACTURING WIRE GRID DEVICE - A method of manufacturing a wire grid device is provided. The method includes: forming SAM (self assembly monomer) nano patterns on a substrate; and forming a wire grid between neighboring SAM nano patterns on the substrate on which the SAM nano patterns are formed by using an electroless plating technique or forming the wire grid on the SAM nano patterns on the SAM nano patterns by using the SAM nano patterns as a seed layer by using the electroless plating technique. | 01-22-2009 |
20090027591 | COLLIMATING LIGHT GUIDE PLATE, DIFFUSING UNIT, AND DISPLAY APPARATUS EMPLOYING THE SAME - A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved. Also, because gray scale inversion and color shifts can be reduced or eliminated using collimated light, image quality of the display apparatus can be improved. | 01-29-2009 |
20090052007 | REFLECTIVE MAGNETIC DISPLAY - A reflective magnetic display includes a magnetic material layer region formed between front and rear substrates, wherein the magnetic material layer region has magnetic particles that reflect or absorb incident light when magnetic moments are randomly oriented and reflect or transmit the incident light in, accordance with polarization of the incident light, when the magnetic moments are aligned in a direction and an electrode that is designed to apply a magnetic field inducing a magnetic moment alignment on the magnetic material layer region in accordance with electrical operation. | 02-26-2009 |
20090074992 | NANOWIRE GRID POLARIZER AND METHOD OF PREPARING THE SAME - Provided are a method of preparing a nanowire grid polarizer, and a nanowire grid polarizer prepared using the same. The method includes: mixing a surfactant and a silica precursor to prepare a mesoporous film composition; coating the mesoporous film composition on a substrate; aging the coated product to form a silica template composite; removing the surfactant inside the silica template composite to prepare a mesoporous material having channels; and filling the channels of the mesoporous material with metal. The method is suitable for the formation of a nanowire having a stable structure, mass production, and large-area production. | 03-19-2009 |
20090316070 | DISPLAY APPARATUS SWITCHABLE BETWEEN TRANSMISSIVE MODE AND REFLECTIVE MODE - A display apparatus including a plurality of pixels, each of the pixels including a first polarizing plate; a liquid crystal layer disposed under the first polarizing plate; a second polarizing plate, which is reflective and is disposed under and adjacent to the liquid crystal layer; a backlight unit disposed under the second polarizing plate; and a light absorbing layer disposed under the backlight unit, wherein the plurality of pixels can be switched between one of a reflective mode in which an image is displayed using external light and a transmissive mode in which an image is displayed using light irradiated from the backlight unit. | 12-24-2009 |
20100085509 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device having brightness uniformity at its front and lateral sides is provided according to one or more embodiments. In one embodiment, the liquid crystal display device includes a reflection sheet reflecting light, an optical plate including a substrate for guiding light, a height-varying portion formed on one surface of the substrate, not facing the reflection sheet, and a prism pattern formed on the height-varying portion, and a plurality of light sources arranged on one lateral surface of the optical plate in a first direction so as to correspond to a position of the height-varying portion having a height not greater than an average height from the one surface of the substrate to the height-varying portion, wherein the prism pattern extends in a second direction substantially perpendicular to the first direction, and the average height is in a range of about 0.1% to about 10% of the thickness of the substrate. | 04-08-2010 |
20100141870 | OPTICAL SHEET AND LCD APPARATUS HAVING THE SAME - Disclosed are an optical sheet and a LCD apparatus having the same. The optical sheet receives a light emitted from a light guiding plate which is disposed under the optical sheet and emits the light substantially perpendicular to a liquid crystal panel. The optical sheet comprises a first prism pattern made of a material having a first refractive index and a second prism pattern made of a material having a second refractive index which is larger than the first refractive index. The viewing angle of the LCD apparatus having the optical sheet is extended and the brightness thereof is enhanced while a gray scale inversion is reduced. | 06-10-2010 |
20100151393 | METHOD OF MANUFACTURING NANO-STRUCTURE AND METHOD OF MANUFACTURING A PATTERN USING THE METHOD - According to an example embodiment of the present invention, a photoresist pattern is formed on a base substrate including a neutral layer. A sacrifice structure including a first sacrifice block and a second sacrifice block is formed on the base substrate having the photoresist pattern, and the sacrifice structure is formed from a first thin film including a first block copolymer. Thus, a chemical pattern is formed to form a nano-structure. Therefore, the nano-structure may be easily formed on a substrate having a large size by using a block copolymer, and productivity and manufacturing reliability may be improved. | 06-17-2010 |
20100316812 | POLARIZATION CONVERTING SYSTEM, METHOD OF MANUFACTURING THE SAME AND LIQUID CRYSTAL DISPLAY USING THE SAME - A polarization converting system and a method of manufacturing the same are provided. The polarization converting system includes a polarization splitting unit splitting incident unpolarized light into two orthogonal polarizations and a polarization converting unit converting incident light into specific polarized light. The polarization converting unit has first and second regions that correspond to the polarization splitting unit and are different in a polarization converting extent from each other. | 12-16-2010 |
20110222002 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a first substrate, and a first optical conversion layer disposed on the first substrate. The first optical conversion layer includes a reflecting unit reflecting incident light, and a polarizing unit. The polarizing unit transmits light which oscillates in a first direction among the incident light, and reflects light which oscillates in a second direction different from the first direction among the incident light. The reflecting unit and the polarizing unit of the first optical conversion layer may be disposed in at least one pixel area. | 09-15-2011 |
20120080404 | BLOCK COPOLYMER AND METHOD OF FORMING PATTERNS BY USING THE SAME - A method of forming patterns includes forming a layer composed of a ketene based random copolymer on a substrate, forming a block copolymer on the ketene based random copolymer layer and patterning the ketene based random copolymer layer by removing a part of the block copolymer and a portion of the ketene based random copolymer layer. | 04-05-2012 |
20120106193 | BACKLIGHT ASSEMBLY AND DISPLAY APPARATUS HAVING THE SAME - The backlight assembly includes a light source part and a light guide plate. The light source part generates a first light beam. The light guide plate has a plurality of light guide blocks. Each of the light guide blocks has a light incident surface, an opposite surface, a light emitting surface, and an inclined surface. The light incident surface receives the first light beam. The opposite surface is located opposite to the light incident surface, has a convex shape with respect to the light incident surface, and reflects the first light beam and converts the first light beam into a second light beam. The light emitting surface emits the second light beam. The inclined surface is inclined with respect to the light emitting surface. | 05-03-2012 |
20120188788 | LIGHT GUIDING BAR, BACKLIGHT ASSEMBLY HAVING THE SAME AND DISPLAY APPARATUS HAVING THE SAME - A light guiding bar includes first and second light incident portions, a light exit portion and a reflecting portion. The first and second light incident portions are at opposite ends of the light guiding bar and receive light. The light exit portion extends in a first direction, and partially totally reflects and partially emits the light according to an incident angle. The reflecting portion extends in the first direction, is adjacent to the light exit portion and includes a plurality of reflecting surfaces. Each of the reflecting surfaces has a wedge shape and reflects the light in a direction inclined with respect to a second direction substantially perpendicular to the first direction. The light incident into the first and second light incident portions and directly on the light exit portion is totally reflected by the light exit portion. | 07-26-2012 |
20120229422 | LIGHT SENSING ASSEMBLY AND INTERACTIVE DISPLAY DEVICE HAVING THE SAME - A light sensing assembly includes a first light guide plate (“LGP”), a light-emitting diode (“LED”) part, an infrared LED part, a second LGP and a first sensor array. The LED part is at a side portion of the first LGP and emits white lights of a displayed image. The infrared LED part emits infrared lights of a detected touch. The second LGP is below the first LGP. The second LGP guides a path of the infrared lights of the detected touch inputted in accordance with a touch operation. The first sensor array is at a side portion of the second LGP and senses the reflected infrared lights which are guided by the second LGP. | 09-13-2012 |
20120273460 | RANDOM COPOLYMER FOR FORMING NEUTRAL SURFACE AND METHODS OF MANUFACTURING AND USING THE SAME - A random copolymer having a structure represented by the following Formula 1: | 11-01-2012 |
20130162610 | PARALLAX BARRIER PANEL AND DISPLAY APPARATUS HAVING THE SAME - A parallax barrier panel includes a first and second substrate and a fluidic layer disposed therebetween. The first substrate includes first electrode parts, a water-repellent layer and a partition wall. Each of the first electrode parts includes a main electrode and a first notch electrode and a second notch electrode. The main electrode extends in a first direction on a first base substrate. The first and second notch electrodes are adjacent to respective ends of the main electrode. The first and second notch electrodes extend along the main electrode in the first direction. The second substrate includes a second electrode part and a second base substrate, the second electrode part being disposed on the second base substrate. The second base substrate is disposed opposite to the first base substrate. The fluidic layer controls a light transmittance according to a voltage difference between the first and second electrode parts. | 06-27-2013 |
20140049724 | LIQUID CRYSTAL DISPLAY - Provided is a liquid crystal display including: a lower display panel including a lower insulating substrate and a lower reflective layer; an upper display panel including an upper insulating substrate and an upper reflective layer; a liquid crystal layer positioned between the lower reflective layer of the lower display panel and the upper reflective layer of the upper display panel; and a backlight unit positioned on a lower portion of the lower display panel and including a light source, wherein a pair of field generating electrodes are formed in at least one display panel of the lower display panel and the upper display panel, wherein microcavities are formed in the lower reflective layer, the upper reflective layer, and the liquid crystal layer, and wherein a wavelength and luminance of light resonated and emitted in the microcavities are changed by an electric field generated by the field generating electrodes. | 02-20-2014 |
20140158664 | METHOD OF MANUFACTURING NANOSTRUCTURE AND METHOD OF FORMING PATTERN USING THE SAME - An approach is provided for manufacturing a nanostructure. A first thin film including a first block copolymer is formed on a substrate. A guide pattern is formed on the first thin film. A second thin film including a second block copolymer is formed between portions of the guide pattern. The second thin film is cured. The first block copolymer is a cylinder-type and the second block copolymer is a lamella-type. | 06-12-2014 |
20150022758 | COLLIMATING LIGHT GUIDE PLATE, DIFFUSING UNIT, AND DISPLAY APPARATUS EMPLOYING THE SAME - A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved. Also, because gray scale inversion and color shifts can be reduced or eliminated using collimated light, image quality of the display apparatus can be improved. | 01-22-2015 |
20150036078 | LIQUID CRYSTAL DISPLAY DEVICE HAVING UNIFORM BRIGHTNESS - A liquid crystal display device having brightness uniformity at its front and lateral sides is provided according to one or more embodiments. In one embodiment, the liquid crystal display device includes a reflection sheet reflecting light, an optical plate including a substrate for guiding light, a height-varying portion formed on one surface of the substrate, not facing the reflection sheet, and a prism pattern formed on the height-varying portion, and a plurality of light sources arranged on one lateral surface of the optical plate in a first direction so as to correspond to a position of the height-varying portion having a height not greater than an average height from the one surface of the substrate to the height-varying portion, wherein the prism pattern extends in a second direction substantially perpendicular to the first direction, and the average height is in a range of about 0.1% to about 10% of the thickness of the substrate. | 02-05-2015 |
20150038044 | METHOD OF FORMING STRUCTURE INCLUDING MICROPATTERN, METHOD OF FORMING NANOPATTERN, AND METHOD OF MANUFACTURING DISPLAY PANEL FOR LIQUID CRYSTAL DISPLAY - A method of forming a micropattern structure includes: coating a structure including a plurality of guide blocks extending in a first direction on a substrate and disposed to be spaced apart from each other in a second direction, which is perpendicular to the first direction, with a sacrificial material; ashing a portion of the sacrificial material to expose upper portions of the plurality of guide blocks; coating the structure with a first material having a polarity that is contrary to a polarity of a filling material filling the structure; heat-treating the structure to chemically bond the first material to the upper portions of the plurality of guide blocks; removing the sacrificial material and excess first material to form a first material cap chemically bonded to the upper portions of the plurality of guide blocks; and filling the structure with the filling material. | 02-05-2015 |
20150055218 | MULTI PANEL DISPLAY DEVICE - The present invention provides a display device including: a plurality of display panels including display areas, and non-display areas positioned alongside the display areas; an optical member having one side connected to a part of one of the display areas and an opposing side extending over an adjacent non-display area, the optical member configured to magnify an image from the part of one of the display areas and to project the magnified image over the adjacent non-display area. A multi panel display device according to the exemplary embodiment of the present invention may prevent the phenomena of image discontinuity and image distortion at edges between the display panels, and adjust a polarization characteristic to provide a high-quality large screen capable of implementing a 3D image and the like. | 02-26-2015 |