Patent application number | Description | Published |
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 |
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 |
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 |
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 |
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 |
Patent application number | Description | Published |
20100151079 | TRANS FATTY ACID FREE FAT FOR MARGARINE PRODUCED BY ENZYMATIC INTERESTERIFICATION AND METHOD FOR PREPARING THE SAME - The present invention can provide margarine oil with the enzymatic interesterification reaction, in which trans fatty acid, different from the existing partially hydrogenerated oil, is not formed in the process, and it has solid fat value profile and melting point corresponding to that of partially hydrogenerated oil and contains less than 1% of trans fatty acid, less than 27% of palmitic acid, more than 99% of triglyceride, less than 1% of diglyceride and monoglyceride, less than 1% of trans fatty acid and based on total fatty acid content. Accordingly, the margarine oil of the present invention is eco-friend and has lower trans fatty acid compared to the existing partially hydrogenerated oil and is easily to use for substituting in the ratio of 1:1 because of its physical properties corresponding to that of partially hydrogenerated oil for margarine oil and is also nutritionally excellent since it has lower palmitic acid content than natural palm oil which is usually used as a substitute for the existing margarine oil such as partially hydrogenerated oil. | 06-17-2010 |
20100178386 | TRANS FATTY ACID FREE FAT FOR FRYING PRODUCED BY ENZYMATIC INTERESTERIFICATION AND METHOD FOR PREPARING THE SAME - The present invention can provide frying oil with the enzymatic interesterification reaction, in which trans fatty acid is not formed in the process different from the existing partially hydrogenerated oil and the frying oil contains less than 1% of trans fatty acid content and less than 27% of palmitic acid based on total fatty acid content and has solid fat content at temperature of 37.8° C. and melting point corresponding to that of partially hydrogenerated oil. Accordingly, the frying oil of the present invention is eco-friend and has lower trans fatty acid compared to the existing partially hydrogenerated oil and has higher triglyceride content without side reaction, and is also nutritionally excellent since it has lower palmitic acid content than natural palm oil which is usually used as a substitute for the existing frying oil such as partially hydrogenerated oil, and has taste corresponding to partially hydrogenerated oil. | 07-15-2010 |
20120002444 | BACKLIGHT UNIT OF LIQUID CRYSTAL DISPLAY - Provided is a backlight unit of a liquid crystal display (LCD). The backlight unit includes: a plurality of light guide plates (LGPs) arranged in M layers and separated from each other by a predetermined gap, wherein M is a natural number equal to or greater than two, a light source unit disposed on at least one side surface of each of the LGPs and including N light source blocks whose brightnesses are controlled individually, and wherein N is a natural number equal to or greater than two. The backlight unit further includes a plurality of light output regions defined by each of the LGPs being divided into a plurality of regions according to a distance from the light source unit and by a plurality of light output patterns being formed in some of the regions, and wherein the light output regions do not overlap each other in a stacking direction of the LGPs and are arranged to correspond to a whole surface of the LGPs. | 01-05-2012 |
20120081882 | BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING LOWER PROFILE AND/OR REDUCED WEIGHT - A backlight assembly and a display device having the same are provided. The backlight assembly includes a first substrate, point light sources disposed upon the first substrate and an optical member covering the point light sources to guide light emitted from the point light sources, wherein the first substrate has recessed portions, and the point light sources are positioned within the recessed portions. | 04-05-2012 |
20120170254 | LIGHT SOURCE LENS, LIGHT SOURCE MODULE HAVING THE SAME AND BACKLIGHT ASSEMBLY HAVING THE LIGHT SOURCE MODULE - A light source lens includes a refraction surface having a concave portion proximate to a central axis of a light source lens. The central axis passes through a light source that is coupled to the light source lens. An angular distribution function F(θ′) of a first light emitted from the light source and refracted at the refraction surface at least approximately satisfies | 07-05-2012 |
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 |