公开(公告)号：US20200066787A1

公开(公告)日：2020-02-27

申请号：US16548535

申请日：2019-08-22

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 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.

公开(公告)号：US10693042B2

公开(公告)日：2020-06-23

申请号：US16152711

申请日：2018-10-05

Applicant: LG Display Co., Ltd.

Inventor： Taeil Jung ,  Il-Soo Kim ,  YongSeok Kwak

IPC: H01L33/38 ,  H01L33/44 ,  H01L25/16 ,  H01L33/14 ,  H01L33/32

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.

公开(公告)号：US09219195B2

公开(公告)日：2015-12-22

申请号：US14484492

申请日：2014-09-12

Applicant: LG Display Co., Ltd.

Inventor： Il-Soo Kim ,  SeoYoon Lee ,  Seong Kyong Park

IPC: H05B33/02 ,  H05B33/10 ,  H05B33/14 ,  H01L33/18 ,  H01L33/08 ,  H01L33/32 ,  H01L33/42 ,  G02F1/1335 ,  H01L33/00 ,  H01L33/50

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。

公开(公告)号：US20240178266A1

公开(公告)日：2024-05-30

申请号：US18474912

申请日：2023-09-26

Applicant: LG Display Co., Ltd.

Inventor： Il-Soo Kim ,  YongSeok Kwak ,  Myungsoo Han ,  Hyowon Kwon

IPC: H01L27/15 ,  H01L25/16

CPC classification number: H01L27/15 ,  H01L25/167

Abstract: According to an aspect of the present disclosure, a light emitting device and a display apparatus including the same are discussed. The light emitting device can include an n-type electrode, a first n-type layer disposed on the n-type electrode, a first active layer disposed on the first n-type layer, a first p-type layer disposed on the first active layer, a p-type electrode disposed on the first p-type layer, a second p-type layer disposed on a partial area of the p-type electrode, a second active layer disposed on the second p-type layer, and a second n-type layer disposed on the second active layer.

公开(公告)号：US20230215993A1

公开(公告)日：2023-07-06

申请号：US17979600

申请日：2022-11-02

Applicant: LG Display Co., Ltd.

Inventor： Il-Soo Kim ,  YongSeok Kwak ,  KyuOh Kwon ,  SeungJun Lee

IPC: H01L33/50 ,  H01L25/075

CPC classification number: H01L33/508 ,  H01L25/0753

Abstract: A display device according to an embodiment of the present disclosure includes a substrate on which a plurality of sub-pixels are defined, a plurality of LEDs disposed in each of the plurality of sub-pixels, and a plurality of color conversion layers covering the plurality of LEDs. The plurality of color conversion layers each include a plurality of color conversion material layers that are stacked to be spaced apart from each other. Accordingly, according to the present disclosure, it is possible to minimize or reduce light lost inside the color conversion layer by separating the plurality of color conversion material layers from each other, and improve color conversion efficiency and luminance.

公开(公告)号：US11309458B2

公开(公告)日：2022-04-19

申请号：US16878215

申请日：2020-05-19

Applicant: LG Display Co., Ltd.

Inventor： Taeil Jung ,  Il-Soo Kim ,  YongSeok Kwak

IPC: H01L33/38 ,  H01L33/44 ,  H01L25/16 ,  H01L33/14 ,  H01L33/32

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.

公开(公告)号：US11029562B2

公开(公告)日：2021-06-08

申请号：US16165779

申请日：2018-10-19

Applicant: LG Display Co., Ltd.

Inventor： Rok-Hee Lee ,  Yong-Seok Kwak ,  Il-Soo Kim

IPC: G02F1/13357 ,  G09G3/36 ,  G09G3/34 ,  G02F1/1335 ,  G02B5/02

Abstract: A liquid crystal display device comprises a liquid crystal panel and a backlight unit under the liquid crystal panel and including a circuit board; a plurality of LED packages mounted on the circuit board; an encapsulation member over the circuit board and covering the plurality of LED packages; and a multi-pattern sheet over the encapsulation member and including a glass complex body containing a phosphor and a plurality of diffusion patterns on an upper surface of the glass complex body, wherein the plurality of diffusion patterns include at least one first pattern corresponding to an LED package and at least one second pattern corresponding to a portion between adjacent LED packages.

公开(公告)号：US10985208B2

公开(公告)日：2021-04-20

申请号：US16548535

申请日：2019-08-22

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 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.

公开(公告)号：US10816852B2

公开(公告)日：2020-10-27

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 ,  G02F1/13357 ,  H01L25/13 ,  H05K1/18 ,  H01L33/58 ,  H01L25/075 ,  H05K1/02 ,  H01L33/54

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.

公开(公告)号：US20190129249A1

公开(公告)日：2019-05-02

申请号：US16165779

申请日：2018-10-19

Applicant: LG Display Co., Ltd.

Inventor： Rok-Hee Lee ,  Yong-Seok Kwak ,  Il-Soo Kim

IPC: G02F1/1335

Abstract: A liquid crystal display device comprises a liquid crystal panel and a backlight unit under the liquid crystal panel and including a circuit board; a plurality of LED packages mounted on the circuit board; an encapsulation member over the circuit board and covering the plurality of LED packages; and a multi-pattern sheet over the encapsulation member and including a glass complex body containing a phosphor and a plurality of diffusion patterns on an upper surface of the glass complex body, wherein the plurality of diffusion patterns include at least one first pattern corresponding to an LED package and at least one second pattern corresponding to a portion between adjacent LED packages.