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公开(公告)号：US20240250212A1
公开(公告)日：2024-07-25
申请号：US18397741
申请日：2023-12-27
Applicant: LG Display Co., Ltd.
Inventor： Il-Soo KIM , Myungsoo HAN , Jung-Hun CHOI , Hyowon KWON , Dongwon YANG
CPC classification number: H01L33/32 , H01L25/167
Abstract: Disclosed is a light-emitting device including a light-emitting structure including a first semiconductor layer, an active layer, and a second semiconductor layer; a first electrode connected to the first semiconductor layer; and a second electrode connected to the second semiconductor layer, wherein an energy bandgap of the first semiconductor layer decreases as the first semiconductor layer extends away from the active layer.
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公开(公告)号：US20190157512A1
公开(公告)日：2019-05-23
申请号：US16152711
申请日：2018-10-05
Applicant: LG Display Co., Ltd.
Inventor： Taeil JUNG , Il-Soo KIM , YongSeok KWAK
Abstract: A light-emitting device and a display device using the same. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
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公开(公告)号：US20240250216A1
公开(公告)日：2024-07-25
申请号：US18421868
申请日：2024-01-24
Applicant: LG Display Co., Ltd.
Inventor： Il-Soo KIM , Myungsoo HAN , Hyowon KWON
IPC: H01L33/38 , H01L25/075 , H01L27/12 , H01L33/58
CPC classification number: H01L33/385 , H01L25/0753 , H01L27/124 , H01L33/58
Abstract: Disclosed is a display apparatus including a light-emitting device having a light-emitting structure including a first semiconductor layer, an active layer and a second semiconductor layer, a passivation layer covering surfaces of the light-emitting structure. The light-emitting device includes at least one first electrode coupled to the first semiconductor layer and at least one second electrode coupled to the second semiconductor layer. A first electrode includes a first upper portion extending through the passivation layer to contact the first semiconductor layer, a first side portion, and a first lower portion on a portion of a side surface and a lower surface of the light-emitting structure, respectively. A second electrode includes a second upper portion extending through the passivation layer to contact the second semiconductor layer, a second side portion and a second lower portion on a portion of the side surface and the lower surface of the light-emitting structure, respectively.
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公开(公告)号：US20210210547A1
公开(公告)日：2021-07-08
申请号：US17206011
申请日：2021-03-18
Applicant: LG Display Co., Ltd.
Inventor： Joonyeong PARK , Taeil JUNG , Il-Soo KIM
IPC: H01L27/15
Abstract: There is provided a display device. The display device includes a plurality of semiconductor elements disposed on a substrate; a plurality of LEDs disposed on the plurality of semiconductor elements and electrically connected to the plurality of semiconductor elements, respectively; and a plurality of reflectors disposed above the semiconductor elements and each located between every two of the LEDs. The plurality of LEDs may include a plurality of respective light-emitting layers disposed on the plurality of semiconductor elements, and a common electrode disposed on the plurality of light-emitting layers. The reflectors are disposed between the LEDs, so that light emitted from LEDs does not travel toward the side portions of the LEDs but toward the above of the substrate, thereby improving the light extraction efficiency and suppressing color mixture.
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公开(公告)号：US20240154057A1
公开(公告)日：2024-05-09
申请号：US18232699
申请日：2023-08-10
Applicant: LG Display Co., Ltd.
Inventor： Il-Soo KIM , Hyowon KWON
CPC classification number: H01L33/06 , H01L25/167 , H01L33/382
Abstract: A light-emitting device can include a semiconductor structure including a undoped semiconductor layer, a superlattice layer, a first semiconductor layer, a light-emitting layer, and a second semiconductor layer; a protective layer disposed on a side surface of the semiconductor structure; a first electrode electrically connected to the first semiconductor layer; and a second electrode electrically connected to the second semiconductor layer. Also, a recess is formed in the undoped semiconductor layer and the superlattice layer, and the recess exposes a portion of a surface of the first semiconductor layer.
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Patent Agency Ranking
公开(公告)号：US20230335577A1
公开(公告)日：2023-10-19
申请号：US18341678
申请日：2023-06-26
Applicant: LG Display Co., Ltd.
Inventor： Joonyeong PARK , Taeil JUNG , Il-Soo KIM
IPC: H01L27/15
CPC classification number: H01L27/156
Abstract: There is provided a display device. The display device includes a plurality of semiconductor elements disposed on a substrate; a plurality of LEDs disposed on the plurality of semiconductor elements and electrically connected to the plurality of semiconductor elements, respectively; and a plurality of reflectors disposed above the semiconductor elements and each located between every two of the LEDs. The plurality of LEDs may include a plurality of respective light-emitting layers disposed on the plurality of semiconductor elements, and a common electrode disposed on the plurality of light-emitting layers. The reflectors are disposed between the LEDs, so that light emitted from LEDs does not travel toward the side portions of the LEDs but toward the above of the substrate, thereby improving the light extraction efficiency and suppressing color mixture.
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公开(公告)号：US20220209072A1
公开(公告)日：2022-06-30
申请号：US17697653
申请日：2022-03-17
Applicant: LG Display Co., Ltd.
Inventor： Taeil JUNG , Il-Soo KIM , YongSeok KWAK
Abstract: A light-emitting device and a display device using the same are disclosed. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
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8.发明公开公开(公告)号：US20240178345A1
公开(公告)日：2024-05-30
申请号：US18367184
申请日：2023-09-12
Applicant: LG DISPLAY CO., LTD.
Inventor： Hyowon KWON , Il-Soo KIM
CPC classification number: H01L33/24 , H01L25/0753 , H01L33/007 , H01L33/0093 , H01L33/32 , H01L33/44 , H01L33/62 , H01L2933/0025 , H01L2933/0066 , H01L2933/0091
Abstract: A display apparatus includes a package substrate in which a plurality of circuit elements are disposed, wherein the package substrate includes a holder area; and a light-emitting device, wherein the light-emitting device includes: a nitride semiconductor structure including a first semiconductor layer, an active layer, and a second semiconductor layer disposed sequentially; and a passivation pattern disposed on an outer surface of the nitride semiconductor structure, wherein the first semiconductor layer includes a protrusion, the protrusion protrudes in a direction away from the active layer, wherein the protrusion is disposed in the holder area.
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公开(公告)号：US20200279975A1
公开(公告)日：2020-09-03
申请号：US16878215
申请日：2020-05-19
Applicant: LG Display Co., Ltd.
Inventor： Taeil JUNG , Il-Soo KIM , YongSeok KWAK
Abstract: A light-emitting device and a display device using the same. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
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公开(公告)号：US20190137825A1
公开(公告)日：2019-05-09
申请号：US16170381
申请日：2018-10-25
Applicant: LG Display Co., Ltd.
Inventor： Il-Soo KIM , Dong-Hwi KIM , Ki-Seong KIM
IPC: G02F1/1335 , H01L25/13 , H05K1/18
Abstract: A backlight unit includes: a plurality of light emitting diode (LED) packages on a top surface of a circuit board; an encapsulation layer located on the circuit board and covering the plurality of LED packages; and an integrated pattern sheet on the encapsulation layer, the integrated pattern sheet including: a base layer; a plurality of lens patterns at a top surface of the base layer and respectively corresponding to the plurality of LED packages; and hollow cavity particles at a bottom surface of the base layer and at a region between the plurality of LED packages.
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