Patent application number | Description | Published |
20100271806 | BACK LIGHT UNIT AND DISPLAY DEVICE USING THE SAME - A back light unit may provided that includes a board, a light source on the board, a plurality of light guide plates provided in a neighboring state, and an attachment member on a light incidence part of the light guide plate to attach the light guide plate to a frame, or an attachment member to block light from a light incidence part. | 10-28-2010 |
20100315445 | DISPLAY DEVICE - The present invention provides a display device. The display device includes: a backlight unit that is divided into a plurality of blocks and driven for each of the divided blocks and includes a plurality of optical assemblies; a display panel positioned on the top of the backlight unit; a controller that outputs a local dimming value for each of blocks corresponding to the blocks of the backlight unit depending on an image displayed in the display panel; and a BLU driver that controls the brightness of the blocks of the backlight unit by using the local dimming value for each block, wherein the optical assembly includes a substrate; a plurality of light sources that are positioned on the substrate and emit light; and a light guide plate including a light input unit including an incident surface into which light is inputted through the side from the light source and a light emitting unit emitting the inputted light to the top, and wherein at least some portions of two adjacent optical assemblies among the plurality of optical assemblies are superimposed on each other, and the BLU driver receives the local dimming value for each block and outputs a plurality of driving signals and each of the driving signals controls the brightness of two or more blocks among the blocks of the backlight unit. | 12-16-2010 |
20100315446 | DISPLAY DEVICE - The present invention provides a display device. The display device includes: a backlight unit that is divided into a plurality of blocks and driven for each of the divided blocks and includes a plurality of optical assemblies; a display panel positioned on the top of the backlight unit; a controller that outputs a local dimming value for each of blocks corresponding to the blocks of the backlight unit depending on an image displayed in the display panel; and a BLU driver that controls the brightness of the blocks of the backlight unit by using the local dimming value for each block, wherein the optical assembly includes a substrate; a plurality of light sources that are positioned and emit light; and a light guide plate including a light input unit including an incident surface into which light is inputted through the side from the light source and a light emitting unit emitting the inputted light to the top, and wherein at least some portions of two adjacent optical assemblies among the plurality of optical assemblies are superimposed on each other, and the BLU driver receives the local dimming value for each block and outputs a plurality of driving signals and the blocks of the backlight unit are driven in the unit of the divided groups by being divided into a plurality of scan groups. | 12-16-2010 |
20110025724 | BACKLIGHT UNIT AND DISPLAY APPARATUS INCLUDING THE SAME - A backlight unit includes at least one light source emitting light in a first direction at a predetermined orientation angle and a plurality of light guide panels, each including a light incident section and a light emitting section. The light incident section has a first surface to receive the light emitted from the light source in the first direction, and the light emitting section is to emit light received from the light incident section in a second direction. At least one portion of the light emitting section of one light guide panel overlaps an upper side of a light incident section of another light guide panel and a space exists between the panels. | 02-03-2011 |
20110037783 | BACKLIGHT UNIT AND DISPLAY APPARATUS INCLUDING THE SAME - A backlight unit includes a plurality of light sources emitting light in a first direction with a predetermined orientation angle and a plurality of light guide panels, each including a light incident section and a light emitting section. The light incident section has a first surface to receive light emitted from one or more of the light sources in the first direction, and the light emitting section is to emit light received from the light incident section in a second direction. Also included is a reflecting member adjacent the light guide panels. The light emitting section of each light guide panel includes a portion that decreases in thickness from a first point to a second point, wherein the first point is closer to the light incident section and the second point. | 02-17-2011 |
20110050557 | BACKLIGHT UNIT AND DISPLAY APPARATUS INCLUDING THE SAME - A backlight unit may be provided that includes a substrate, light sources, and a light guide plate. The light sources are arrayed on the substrate, and emit light with a predetermined orientation angle with respect to a first direction, and include first through third light sources adjacent to each other. The light guide plate may include a light incident part having a light incident surface to which streaks of light respectively emitted from the light sources are laterally incident, and a light emitting part emitting the incident streaks of light upward and having a side adjacent and connected to the light incident part. A first distance between the first light source and the second light source is less than a second distance between the second light source and third light source. | 03-03-2011 |
20110051045 | Backlight Unit And Display Apparatus Including The Same - A backlight unit may be provided that includes a substrate, light sources, a light guide plate, at least one reflecting member, and an optical sheet. The light sources may be on the substrate. The light guide plate may include a light incident part having a light incident surface to which streaks of light respectively emitted from the light sources are laterally incident, and a light emitting part emitting the incident streaks of light upward. The reflecting member may be disposed on a lower surface of the light guide plate, and may reflect the incident light. The optical sheet may be disposed above the light guide plate. The reflecting member may include a first region having a first reflectance and a second region having a second reflectance. | 03-03-2011 |
20120105507 | LIQUID CRYSTAL DISPLAY DEVICE AND DRIVE METHOD FOR SAME - The present invention relates to a liquid crystal display device in which the light sources of a backlight unit are independently driven as a plurality of separate regions, and to a drive method for the same. In situations where there is a substantial variation in the brightness (luminance) of regions being displayed on the liquid crystal display device, the present invention can improve the visibility of boundaries due to differences in luminance in images displayed within the regions of the backlight unit emitting light at different levels of luminance as a result. | 05-03-2012 |
20150015974 | MULTIVISION DEVICE AND LENS BAR ATTACHED TO THE SAME - A multivision device, which may minimize a screen split zone, and a lens bar attached to the same are disclosed. The multivision device comprises a plurality of display parts; a frame part disposed between two adjacent ones of the plurality of display parts; and a lens bar disposed above the frame part, wherein the lens bar includes a first surface, and a second surface which is located at an opposite side of the first surface and faces the frame part, the first surface includes a first area which is gradually close to the second surface towards a center of the lens bar from a side of the lens bar, and an air gap exists between the lens bar and the frame part. | 01-15-2015 |