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| 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 |
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| 20090296026 | Led back-light unit and liquid crystal display device using the same - An LED back-light unit and other devices using the LED back-light unit are discussed. According to one embodiment, an LED back-light unit includes a light guide portion that includes a light guide plate and a reflection plate coupled to the light guide plate, wherein the light guide plate has a light input part and a first connection part, and wherein the reflection plate has a second connection part connected to the first connection part, and a light source including at least one light emitting diode, the light source emitting light toward the light guide portion. | 12-03-2009 |
| 20100053506 | LIQUID CRYSTAL DISPLAY USING THE SAME - An LED back-light unit and other devices using the LED back-light unit are discussed. According to one embodiment, an LED back-light unit includes a light guide portion that includes a light guide plate and a reflection plate coupled to the light guide plate, wherein the light guide plate has a light input part and a first connection part, and wherein the reflection plate has a second connection part connected to the first connection part, and a light source including at least one light emitting diode, the light source emitting light toward the light guide portion. | 03-04-2010 |
| 20100165236 | LIQUID CRYSTAL DISPLAY USING THE SAME - An LED backlight unit and an LCD using a backlight unit may be provided. A liquid crystal display (LCD) may include a plurality of modules including a circuit board, a plurality of light emitting diode (LED) light sources arranged on the circuit board for emitting light, and a light guide plate having a light incidence part including an incident surface for receiving light emitted from the LED light source and a light emission part for emitting the light. The LCD may further include a frame having the plurality of the modules provided thereon, and at least one driving unit on one surface of the frame, wherein a connection hole is formed in the frame to connect the circuit board to the at least one driving unit. | 07-01-2010 |
| 20100295068 | LIGHT EMITTING DEVICE PACKAGE AND LIGHTING APPARATUS USING THE SAME - In one embodiment, the light emitting device package includes a package body, electrodes attached to the package body, and at least two light emitting devices electrically connected to the electrodes. Each light emitting device emits light of a different color from the other light emitting devices. A protective layer is formed over the at least two light emitting devices, and a phosphor layer formed over the protective layer. Other embodiments include other structures such a individual phosphor layers on each light emitting device. And, a light apparatus including a package may include a single driver driving the light emitting devices of the package. | 11-25-2010 |
| 20110051411 | BACKLIGHT UNIT AND DISPLAY DEVICE - A backlight unit and display device are discussed. According to an embodiment, a light generating device includes an array of light source devices disposed on a substrate and including first and second light source devices forming a first line, the first and second light source devices spaced apart from each other with a first distance and configured to emit light in a first direction; another array of light source devices disposed on the substrate and including third and fourth light source devices forming a second line, the third and fourth light source devices spaced apart from each other with a third distance and configured to emit light in a second direction which is different from the first direction, the second line being spaced apart from the first line so that the first light source device is spaced apart from the third light source device with a second distance therebetween. | 03-03-2011 |
| 20110051412 | BACKLIGHT UNIT AND DISPLAY DEVICE - A backlight unit and a display device including the backlight unit are discussed. According to an embodiment, a light generating device comprising: a first layer; light source devices disposed on the first layer and configured to emit light; a reflection layer disposed on the first layer and configured to reflect the light emitted from the light source devices; a second layer covering the light source devices and the reflection layer; a diffusion layer disposed on the second layer and configured to diffuse the light emitted from the light source devices; and an auxiliary layer having light shielding members placed between the second layer and the diffusion layer, the auxiliary layer being separated from the second layer so as to create an air space between a surface of the second layer and surfaces of the light shielding members, the air space extending along the light source devices. | 03-03-2011 |
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| 20090045432 | Circuit board for light emitting device package and light emitting unit using the same - A circuit board for a light emitting device and a light emitting unit using the same, which are capable of achieving an enhancement in light emission efficiency and an enhancement in reliability, are disclosed. The disclosed circuit board includes a substrate having a first surface and a second surface, at least one pair of conductive lines formed on the first surface of the substrate, and electrically connected to a light emitting device package, and a heat transfer member formed in a region where the light emitting device package is coupled to the circuit board, such that the heat transfer member connects the first and second surfaces of the substrate. | 02-19-2009 |
| 20090136179 | LIGHT EMITTING UNIT, APPARATUS AND METHOD FOR MANUFACTURING THE SAME, APPARATUS FOR MOLDING LENS THEREOF, AND LIGHT EMITTING DEVICE PACKAGE THEREOF - A light emitting unit, an apparatus and method for manufacturing the same, an apparatus for molding a lens thereof, and a light emitting device package thereof, which are capable of achieving an enhancement in light extraction efficiency and an improvement in mass productivity, are disclosed. The light emitting unit manufacturing apparatus includes a mold including a first mold and a second mold coupled to each other under a condition in which at least one light emitting unit is interposed between the first and second molds, a groove formed in one of the first and second molds at a position facing the light emitting unit, the groove having a lens shape, and a passage extending from an outer surface of the mold to the groove. | 05-28-2009 |
| 20100302805 | LED BACK-LIGHT UNIT AND DISPLAY DEVICE - A back-light unit including a plurality of substrates, a plurality of light sources respectively disposed on the plurality of substrates and configured to emit light, and N (N ≧2) light guide plates respectively disposed adjacent to the plurality of light sources, each light guide plate including a light incidence part having a light incidence surface for receiving light emitted in a first direction from a corresponding light source, and a light emission part for emitting the received incident light in a second direction different than the first direction. Further, at least one of the light guide plates includes light-extracting surface patterns disposed on the light emission part, and the light-extracting surface patterns comprise a first region of light-extracting surface patterns having a higher pattern-density than a second region of light-extracting surface patterns next to the first region. | 12-02-2010 |
