-
公开(公告)号：US12046209B2
公开(公告)日：2024-07-23
申请号：US18215027
申请日：2023-06-27
发明人： Sungyeol Kim , Chunsoon Park , Kyehoon Lee , Hyukjun Jang
IPC分类号： G09G3/34
CPC分类号： G09G3/3426 , G09G2320/0233 , G09G2320/041
摘要： A display device includes a liquid crystal panel; a plurality of light sources configured to emit light toward the liquid crystal panel, wherein the plurality of light sources are divided into a plurality of dimming blocks, each dimming block including one or more light sources; a driver configured to provide a current to each light source of the plurality of light sources; and a processor configured to: control the driver to provide the current to the one or more light sources included in each dimming block of the plurality of dimming blocks based on image data, obtain an average current value of currents provided to the one or more light sources included in each dimming block of the plurality of dimming blocks for a reference time based on the image data, and control the driver to provide a reduced current to the plurality of light sources based on at least one of a predetermined number of first dimming blocks or an arrangement of the first dimming blocks having the average current value being greater than or equal to a first reference current value.
-
公开(公告)号：US20240204035A1
公开(公告)日：2024-06-20
申请号：US18379404
申请日：2023-10-12
发明人： Sungyeol KIM , Kyehoon Lee , Pujjae Choi , Sooyoung Park , Chunsoon Park , Junsung Choi
IPC分类号： H01L27/15 , G02F1/1335 , G02F1/13357 , H01L25/065
CPC分类号： H01L27/15 , G02F1/133603 , G02F1/133607 , G02F1/133614 , G02F1/13362 , H01L25/0655 , H01L33/06
摘要： A display apparatus, includes: a liquid crystal panel; and a backlight configured to provide light to the liquid crystal panel, the backlight including a substrate and a light-emitting diode (LED) that is mounted on the substrate. The LED includes a plurality of light-emitting layers configured to emit light of different wavelengths. A wavelength of light emitted from each of the plurality of light-emitting layers is greater than or equal to 430 nm and less than or equal to 480 nm.
-
公开(公告)号：US11768401B2
公开(公告)日：2023-09-26
申请号：US17827164
申请日：2022-05-27
发明人： Sungyeol Kim , Kyehoon Lee , Kyungsoo Park , Hyukjun Jang
IPC分类号： G02F1/13357
CPC分类号： G02F1/133605 , G02F1/133603
摘要： A display apparatus includes a liquid crystal panel, a substrate, and a plurality of light emitting diodes (LEDs) provided on one side of the substrate and configured to emit light towards the liquid crystal panel. Each of the plurality of LEDs includes a first reflection layer, a second reflection layer, and a light emitting layer provided between the first reflection layer and the second reflection layer. The second reflection layer is provided between the substrate and the light emitting layer. A first reflectivity of the first reflection layer for a first light entering at a first incident angle is different from a second reflectivity of the second reflection layer for the first light entering at the first incident angle.
-
公开(公告)号：US11656496B2
公开(公告)日：2023-05-23
申请号：US17542917
申请日：2021-12-06
发明人： Sungyeol Kim , Kyehoon Lee , Youngmin Lee , Junsung Choi
IPC分类号： G02F1/13357 , H01L25/075 , G02F1/1335 , H01L33/56 , H01L33/54
CPC分类号： G02F1/133603 , H01L25/0753 , G02F1/133612 , H01L33/54 , H01L33/56
摘要： A display apparatus including a light source; a display panel; an optical sheet. The light source including a first light source substrate and a second light source substrate spaced apart from the first light source substrate in a width direction. The light source is mounted on the light source module and a width of a region defined by half of a maximum brightness of a light profile of the light source, is set as a full width at half maximum brightness. A distance between a center of the first light source substrate in the width direction and a center of the second light source substrate in the width direction is referred to as a pitch, the full width at half maximum brightness of the light source and the pitch satisfy: 1.0≤full width at half maximum brightness/pitch≤2.0.
-
公开(公告)号：US12111542B2
公开(公告)日：2024-10-08
申请号：US18200253
申请日：2023-05-22
发明人： Hyukjun Jang , Kyehoon Lee
IPC分类号： H01L25/075 , G02F1/1335 , G02F1/13357 , H05K1/02 , H01L33/54 , H05K1/18
CPC分类号： G02F1/133612 , G02F1/133605 , H01L25/0753 , H05K1/0259 , G02F1/133603 , H01L33/54 , H05K1/0274 , H05K1/181 , H05K2201/10106
摘要： Provided is a display apparatus including: a liquid crystal panel; a substrate; a light source module disposed on the substrate. The light source module includes a light emitting diode disposed on the substrate, a feed pad provided on the substrate, an antistatic pad provided on the substrate; and an insulating dome provided on the substrate and covering the light emitting diode. The antistatic pad is divided into two parts by an outline of the insulating dome.
-
公开(公告)号：US20240019736A1
公开(公告)日：2024-01-18
申请号：US18474565
申请日：2023-09-26
发明人： Chunsoon PARK , Sungyeol Kim , Kyehoon Lee
IPC分类号： G02F1/1335 , G02F1/13357
CPC分类号： G02F1/133607 , G02F1/133605 , G02F1/133603
摘要： A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5≤pitch/optical distance≤4.5.
-
公开(公告)号：US11675232B2
公开(公告)日：2023-06-13
申请号：US17582644
申请日：2022-01-24
发明人： Sungyeol Kim , Kyungsoo Park , Chunsoon Park , Kyehoon Lee
IPC分类号： G02F1/13357 , F21K9/64 , F21Y105/16 , F21Y115/10
CPC分类号： G02F1/133621 , F21K9/64 , G02F1/133602 , F21Y2105/16 , F21Y2115/10
摘要： Disclosed is a display apparatus and light source device which includes an optical dome having a specifically defined shape to be able to maintain an optical profile of a light source. A display apparatus includes a printed circuit board (PCB); a light emitting diode (LED) chip mounted on the PCB and configured to emit light; an optical dome disposed over and enclosing the LED chip; a liquid crystal panel configured to block or pass light output from the LED chip; and an optical film arranged between the LED chip and the liquid crystal panel, wherein a ratio of a height of the optical dome to a diameter of a bottom surface of the optical dome is 0.25 to 0.31.
-
公开(公告)号：US11422407B2
公开(公告)日：2022-08-23
申请号：US17349550
申请日：2021-06-16
发明人： Chunsoon Park , Sungyeol Kim , Kyehoon Lee
IPC分类号： G02F1/1335 , G02F1/13357
摘要： A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5≤pitch/optical distance≤4.5.
-
公开(公告)号：US11417287B2
公开(公告)日：2022-08-16
申请号：US17473243
申请日：2021-09-13
发明人： Sungyeol Kim , Sungbok Yang , Seokwoo Yong , Kyehoon Lee , Junsung Choi
IPC分类号： G09G3/34 , G02F1/133 , G02F1/13357 , G09G3/36
摘要： A display apparatus includes: a liquid crystal panel; and a light apparatus on which the liquid crystal panel is disposed, the light apparatus including: a substrate; a plurality of dimming blocks including a first dimming block and a second dimming block disposed immediately next to the first dimming block, each of the plurality of dimming blocks including at least one respective light source disposed on a first side of the substrate; and a plurality of driving devices disposed on the first side of the substrate and including a first driving device disposed in the first dimming block and a second driving device disposed in the second dimming block, each driving device of the plurality of driving devices being configured to provide a driving current to the at least one respective light source included in a respective one of the plurality of dimming blocks, wherein the first driving device and the second driving device are disposed at relatively different positions respectively within the first dimming block and the second dimming block.
-
公开(公告)号：US11410619B2
公开(公告)日：2022-08-09
申请号：US17473283
申请日：2021-09-13
发明人： Sungyeol Kim , Sungbok Yang , Seokwoo Yong , Kyehoon Lee , Junsung Choi
IPC分类号： G09G3/34 , G02F1/133 , G02F1/13357 , G09G3/36
摘要： A display apparatus includes: a liquid crystal panel; and a light apparatus on which the liquid crystal panel is disposed, the light apparatus including: a substrate; a plurality of dimming blocks including a first dimming block and a second dimming block disposed immediately next to the first dimming block, each of the plurality of dimming blocks including at least one respective light source disposed on a first side of the substrate; and a plurality of driving devices disposed on the first side of the substrate and including a first driving device disposed in the first dimming block and a second driving device disposed in the second dimming block, each driving device of the plurality of driving devices being configured to provide a driving current to the at least one respective light source included in a respective one of the plurality of dimming blocks, wherein the first driving device and the second driving device are disposed at relatively different positions respectively within the first dimming block and the second dimming block.
-
-
-
-
-
-
-
-
-
搜索结果
39 条记录 (耗时 0.023 秒)
