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11.发明申请公开(公告)号：US20150070626A1
公开(公告)日：2015-03-12
申请号：US14484492
申请日：2014-09-12
Applicant: LG Display Co., Ltd.
Inventor： Il-Soo Kim , SeoYoon Lee , Seong Kyong Park
CPC classification number: H01L33/18 , G02F1/133606 , G02F2001/133614 , G02F2202/108 , H01L33/007 , H01L33/08 , H01L33/32 , H01L33/42 , H01L33/505 , H01L2933/0041
Abstract: A columnar light emitting device is provided. The columnar light emitting device includes an upper transparent electrode layer, a lower transparent electrode layer disposed to be separated from the upper transparent electrode layer, a columnar light emitting structure pattern-formed between the upper transparent electrode layer and the lower transparent electrode layer, a fluorescent part formed between a plurality of the columnar light emitting structures, a P-type electrode pad formed on the upper transparent electrode layer, and an N-type electrode pad formed under the lower transparent electrode layer. The columnar light emitting structure includes a U-GaN layer, an N-type semiconductor layer, an emission layer, and a P-type semiconductor layer.
Abstract translation: 提供柱状发光装置。 柱状发光器件包括上透明电极层，设置成与上透明电极层分离的下透明电极层，在上透明电极层和下透明电极层之间形成的柱状发光结构图案， 形成在多个柱状发光结构体之间的荧光部分，形成在上部透明电极层上的P型电极焊盘和形成在下部透明电极层下面的N型电极焊盘。 柱状发光结构包括U-GaN层，N型半导体层，发光层和P型半导体层。
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公开(公告)号：US11923480B2
公开(公告)日：2024-03-05
申请号：US17697653
申请日：2022-03-17
Applicant: LG Display Co., Ltd.
Inventor： Taeil Jung , Il-Soo Kim , YongSeok Kwak
CPC classification number: H01L33/387 , H01L25/167 , H01L33/382 , H01L33/385 , H01L33/44 , H01L33/14 , H01L33/32
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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公开(公告)号：US11721718B2
公开(公告)日：2023-08-08
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
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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