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公开(公告)号：US11798974B2
公开(公告)日：2023-10-24
申请号：US17030301
申请日：2020-09-23
发明人： Dae Sung Cho , So Ra Lee , Chang Yeon Kim , Jong Min Jang
CPC分类号： H01L27/156 , H01L33/04 , H01L33/382 , H01L33/486 , H01L33/50 , H01L33/62
摘要： A display apparatus including a circuit board and a plurality of pixels arranged on the circuit board, in which at least one of the pixels includes a first light emitting device and a second light emitting device spaced apart from each other in a lateral direction, the first light emitting device includes a first LED stack configured to generate light having a first peak wavelength; and the second light emitting device includes a second LED stack configured to generate light having a second peak wavelength, and a third LED stack disposed on the second LED stack and configured to generate light having a third peak wavelength.
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公开(公告)号：US11489002B2
公开(公告)日：2022-11-01
申请号：US17082018
申请日：2020-10-28
发明人： Chung Hoon Lee , Dae Sung Cho
摘要： A display apparatus including a display substrate, a plurality of light emitting devices disposed on the display substrate, a light blocking layer disposed between the light emitting devices, and a transparent layer covering the light emitting devices and the light blocking layer, in which the light emitting device includes a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, and a third LED sub-unit disposed on the second LED sub-unit, and the third LED sub-unit is disposed closer to an upper surface of the light emitting device than the first LED sub-unit.
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公开(公告)号：US10439105B2
公开(公告)日：2019-10-08
申请号：US15226304
申请日：2016-08-02
发明人： Jong Hyeon Chae , Jong Min Jang , Won Young Roh , Daewoong Suh , Dae Sung Cho , Joon Sup Lee , Kyu Ho Lee , Chi Hyun In
IPC分类号： H01L33/40 , H01L33/22 , H01L33/20 , H01L33/38 , H01L33/00 , H01L33/14 , H01L33/32 , H01L33/44 , H01L33/12 , H01L33/42 , H01L33/46 , H01L33/48 , H01L33/62 , H01L33/08
摘要： A light emitting diode including a first conductive type semiconductor layer, a mesa disposed on the first conductive type semiconductor layer, the mesa including an active layer and a second conductive type semiconductor layer, a reflective electrode disposed on the mesa and configured to be in ohmic-contact with the second conductive type semiconductor layer, a current spreading layer disposed on the mesa and the reflective electrode, the current spreading layer including a first portion configured to be in ohmic-contact with an upper surface of the first conductive type semiconductor layer, a first n-contact region spaced apart from a second n-contact region with the mesa disposed between the first and second n-contact regions, and an insulation layer including a first opening exposing the reflective electrode between the first and second n-contact regions. The first and second n-contact regions have a second opening that exposes the first conductive type semiconductor layer.
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公开(公告)号：US20190164945A1
公开(公告)日：2019-05-30
申请号：US16200036
申请日：2018-11-26
发明人： Jong Hyeon Chae , Chang Yeon Kim , Ho Joon Lee , Seong Gyu Jang , Chung Hoon Lee , Dae Sung Cho
摘要： A light emitting diode stack for a display includes a support substrate, a first LED stack, a second LED stack, and a third LED stack, a conductive growth substrate coupled to the second LED stack or the third LED stack, a first color filter interposed between the first and second LED stacks and transmitting light generated from the first LED stack while reflecting light generated from the second LED stack, and a second color filter interposed between the second and third LED stacks and transmitting light generated from the first and second LED stacks while reflecting light generated from the third LED stack, in which light generated from the first LED stack is emitted outside through the second LED stack, the third LED stack, and the conductive growth substrate, and light generated from the second LED stack is emitted outside through the third LED stack and the conductive growth substrate.
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公开(公告)号：US20160315226A1
公开(公告)日：2016-10-27
申请号：US15200633
申请日：2016-07-01
发明人： Won Cheol Seo , Dae Sung Cho , Kyung Hee Ye , Kyoung Wan Kim , Yeo Jin Yoon
CPC分类号： H01L33/387 , H01L33/08 , H01L33/20 , H01L33/32 , H01L33/38 , H01L33/385 , H01L33/42 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2933/0016 , H01L2924/00
摘要： A substrate, a first conductive type semiconductor layer arranged on the substrate, a second conductive type semiconductor layer arranged on the first conductive type semiconductor layer, an active layer disposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, a first electrode pad electrically connected to the first conductive type semiconductor layer, a second electrode pad arranged on the second conductive type semiconductor layer, an insulation layer disposed between the second conductive type semiconductor layer and the second electrode pad, and at least one upper extension electrically connected to the second electrode pad, the at least one upper extension being electrically connected to the second conductive type semiconductor layer.
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公开(公告)号：US09012952B2
公开(公告)日：2015-04-21
申请号：US14229672
申请日：2014-03-28
发明人： Won Cheol Seo , Dae Sung Cho , Kyung Hee Ye , Kyoung Wan Kim , Yeo Jin Yoon
CPC分类号： H01L33/387 , H01L33/08 , H01L33/20 , H01L33/32 , H01L33/38 , H01L33/385 , H01L33/42 , H01L33/44 , H01L33/62 , H01L2924/0002 , H01L2933/0016 , H01L2924/00
摘要： Exemplary embodiments of the present invention relate to a including a substrate, a first conductive type semiconductor layer arranged on the substrate, a second conductive type semiconductor layer arranged on the first conductive type semiconductor layer, an active layer disposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer, a first electrode pad electrically connected to the first conductive type semiconductor layer, a second electrode pad arranged on the second conductive type semiconductor layer, an insulation layer disposed between the second conductive type semiconductor layer and the second electrode pad, and at least one upper extension electrically connected to the second electrode pad, the at least one upper extension being electrically connected to the second conductive type semiconductor layer.
摘要翻译： 本发明的示例性实施例涉及包括基板，布置在基板上的第一导电类型半导体层，布置在第一导电类型半导体层上的第二导电类型半导体层，设置在第一导电类型半导体层之间的有源层 和第二导电型半导体层，电连接到第一导电类型半导体层的第一电极焊盘，布置在第二导电类型半导体层上的第二电极焊盘，设置在第二导电类型半导体层和第二电极之间的绝缘层 垫，以及电连接到第二电极焊盘的至少一个上延伸部，所述至少一个上延伸部电连接到第二导电型半导体层。
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公开(公告)号：US11527514B2
公开(公告)日：2022-12-13
申请号：US16673184
申请日：2019-11-04
发明人： Jong Hyeon Chae , Chang Yeon Kim , Seong Gyu Jang , Ho Joon Lee , Jong Min Jang , Dae Sung Cho
IPC分类号： H01L25/075 , H01L33/50 , H01L33/08 , H01L33/38
摘要： A light emitting device for a display includes a pixel region including first, second, and third LED stacks, an adhesive layer disposed between the first and second LED stacks, or between the second and third LED stacks, a metal bonding layer at least partially surrounded by the adhesive layer, and disposed between and is electrically connected to the first and second LED stacks, or the second and third LED stacks, and a common electrode pad connected to the first, second, and third LED stacks, first, second, and third electrode pads connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.
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公开(公告)号：US11355482B2
公开(公告)日：2022-06-07
申请号：US16200036
申请日：2018-11-26
发明人： Jong Hyeon Chae , Chang Yeon Kim , Ho Joon Lee , Seong Gyu Jang , Chung Hoon Lee , Dae Sung Cho
IPC分类号： H01L25/13 , H01L25/075 , H01L33/00 , H01L27/15 , H01L33/40 , H01L33/50 , H01L33/62 , H01L33/38
摘要： A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a portion of the first LED sub-unit, a third LED sub-unit disposed on a portion of the second LED sub-unit, and a reflective electrode disposed adjacent to the first LED sub-unit, in which each of the first to third LED sub-units comprises an n-type semiconductor layer and a p-type semiconductor layer, each of the n-type semiconductor layers of the first, second, and third LED stacks is electrically connected to the reflective electrode, and the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven.
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公开(公告)号：US11257798B2
公开(公告)日：2022-02-22
申请号：US16200036
申请日：2018-11-26
发明人： Jong Hyeon Chae , Chang Yeon Kim , Ho Joon Lee , Seong Gyu Jang , Chung Hoon Lee , Dae Sung Cho
IPC分类号： H01L25/13 , H01L25/075 , H01L33/00 , H01L27/15 , H01L33/40 , H01L33/50 , H01L33/62 , H01L33/38
摘要： A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a portion of the first LED sub-unit, a third LED sub-unit disposed on a portion of the second LED sub-unit, and a reflective electrode disposed adjacent to the first LED sub-unit, in which each of the first to third LED sub-units comprises an n-type semiconductor layer and a p-type semiconductor layer, each of the n-type semiconductor layers of the first, second, and third LED stacks is electrically connected to the reflective electrode, and the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven.
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公开(公告)号：US10756237B2
公开(公告)日：2020-08-25
申请号：US16571604
申请日：2019-09-16
发明人： Jong Hyeon Chae , Jong Min Jang , Won Young Roh , Daewoong Suh , Dae Sung Cho , Joon Sup Lee , Kyu Ho Lee , Chi Hyun In
IPC分类号： H01L33/48 , H01L33/40 , H01L33/22 , H01L33/38 , H01L33/20 , H01L33/00 , H01L33/14 , H01L33/32 , H01L33/44 , H01L33/12 , H01L33/42 , H01L33/46 , H01L33/62 , H01L33/08
摘要： A light emitting diode including a first conductive type semiconductor layer, a mesa disposed on the first conductive type semiconductor layer, the mesa including an active layer and a second conductive type semiconductor layer, a reflective electrode disposed on the mesa and configured to be in ohmic-contact with the second conductive type semiconductor layer, a current spreading layer disposed on the mesa and the reflective electrode, the current spreading layer including a first portion configured to be in ohmic-contact with an upper surface of the first conductive type semiconductor layer, a first n-contact region spaced apart from a second n-contact region with the mesa disposed between the first and second n-contact regions, and an insulation layer including a first opening exposing the reflective electrode between the first and second n-contact regions. The first and second n-contact regions have a second opening that exposes the first conductive type semiconductor layer.
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