公开(公告)号：US10852468B2

公开(公告)日：2020-12-01

申请号：US16561494

申请日：2019-09-05

Applicant: Samsung Display Co., Ltd.

Inventor： Taewoo Lim ,  Dongwoo Kim ,  Minsu Kim ,  Cheonjae Maeng ,  Seongyeon Lee ,  Hongbeom Lee

IPC: F21V7/04 ,  F21V8/00 ,  G02F1/1368

Abstract: An optical member including a base substrate, a quantum dot layer disposed on the base substrate and having a first top surface including a lower wrinkle, the quantum dot layer including a medium layer and a plurality of quantum dots dispersed in the medium layer, a lower barrier layer disposed between the base substrate and the quantum dot layer, and an upper barrier layer covering the quantum dot layer, in which the upper barrier layer has a second top surface with an upper wrinkle corresponding to the lower wrinkle of the quantum dot layer.

公开(公告)号：US11003011B2

公开(公告)日：2021-05-11

申请号：US16174142

申请日：2018-10-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hongbeom Lee ,  Kyungtae Chae ,  Hanjun Yu ,  Yeogeon Yoon ,  Keunwoo Park

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1333

Abstract: A display panel may include a first base substrate, a second base substrate facing the first base substrate, a plurality of wavelength conversion parts that are provided on the first base substrate to face the second base substrate, and at least one of the plurality of wavelength conversion parts includes an emission body, a light blocking layer partially covering the plurality of wavelength conversion parts and having a plurality of openings, the light blocking layer including a metallic material, and a first organic layer provided on the light blocking layer without overlapping the openings.

公开(公告)号：US10942308B2

公开(公告)日：2021-03-09

申请号：US16542365

申请日：2019-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Seongyeon Lee ,  Taewoo Lim ,  Dongwoo Kim ,  Minsu Kim ,  Cheonjae Maeng ,  Keunwoo Park ,  Hongbeom Lee

IPC: F21V8/00

Abstract: A light source member including a guide panel, a light source disposed adjacent to at least one side of the guide panel, a low refractive layer disposed on the guide panel, and a color converting layer disposed on the low refractive layer and including a base resin and a quantum dot dispersed in the base resin, in which the low refractive layer includes a matrix part, a plurality of low refractive substances dispersed in the matrix part, and a void disposed in the matrix part, and an area occupied by the void is less than about 20% of an entire area of the low refractive layer.

公开(公告)号：US10908455B2

公开(公告)日：2021-02-02

申请号：US16537648

申请日：2019-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： Taewoo Lim ,  Dongwoo Kim ,  Minsu Kim ,  Cheonjae Maeng ,  Keunwoo Park ,  Seongyeon Lee ,  Hongbeom Lee

IPC: G02F1/13357

Abstract: A display device including an optical member, a display panel disposed above the optical member, and a plurality of light emitting units disposed below the optical member and configured to provide first color light to the optical member, in which the optical member includes a support substrate having upper and surfaces and overlapping the light emitting units, a quantum dot layer disposed on the support substrate and configured to convert the first color light into second color light and third color light, and a filter directly disposed on at least one of the upper surface and the lower surface of the support substrate, and having a first transmittance to the first color light having a first incident angle of 0 degrees and having a second transmittance greater than the first transmittance to the first color light having a second incident angle greater than the first incident angle.

公开(公告)号：US10663642B2

公开(公告)日：2020-05-26

申请号：US16364644

申请日：2019-03-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hongbeom Lee ,  Dongwoo Kim ,  Minsu Kim ,  Keunwoo Park ,  Seongyeon Lee ,  Taewoo Lim

IPC: F21V8/00 ,  G02F1/1335

Abstract: A display apparatus includes a display panel configured to display an image, a light guide member below the display panel, a light source adjacent to at least one surface of the light guide member, and an optical member between the light guide member and the display panel. The optical member includes a wavelength conversion layer configured to convert a wavelength band of incident light. A low refractive index layer between the wavelength conversion layer and the light guide member and including a plurality of pores, and an inorganic layer between the low refractive index layer and the wavelength conversion layer. A volume ratio occupied by the pores within the low refractive index layer increases as being closer to the light guide member.

公开(公告)号：US10133129B2

公开(公告)日：2018-11-20

申请号：US15245544

申请日：2016-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeongki Kim ,  Hongbeom Lee ,  Junyoung Jung

IPC: G02F1/1343 ,  G02F1/1337

Abstract: A display substrate includes a base substrate including pixel areas in a first direction and a pixel electrode. The pixel electrode includes a sub-pixel electrode including first and second unit electrodes connected by a first connector, and a first slit non-parallel to the first direction between the first and second unit electrodes. The first unit electrode includes a first vertical stem portion at a side of the pixel area, and a first horizontal stem portion including an end connected to the first vertical stem portion and an end adjacent to a first vertical stem portion of an adjacent pixel electrode. The second unit electrode includes a second vertical stem portion at another side of the pixel area, and a second horizontal stem portion including an end connected to the second vertical stem portion and another end adjacent to a second vertical stem portion of another adjacent pixel electrode.

公开(公告)号：US20180218703A1

公开(公告)日：2018-08-02

申请号：US15887018

申请日：2018-02-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hongbeom Lee ,  Jihoon Shin ,  Yeunmo Yeon ,  Eunkyung Kim ,  Minho Park ,  Chowon Park ,  Yina Yun

IPC: G09G3/36 ,  G02F1/1362

CPC classification number: G09G3/3688 ,  G02F1/133707 ,  G02F1/13624 ,  G02F1/136286 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2300/0413 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2310/067 ,  G09G2320/0214 ,  G09G2320/029 ,  G09G2320/048

Abstract: A display device includes: a substrate; a gate line, a dummy gate line, a data line, a dummy data line, a pixel electrode, and a dummy pixel electrode, each disposed on the substrate; a switching element connected to the gate line, the data line, and the pixel electrode; a dummy switching element connected to the dummy gate line, the dummy data line, and the dummy pixel electrode; a compensation circuit detecting a change amount of a drain current based on drain currents generated from the dummy pixel at different time points, and detecting a change amount of a gate voltage of the dummy switching element based on the change amount of the drain current; a power supply circuit outputting a corrected gate-off voltage based on the change amount of the gate voltage; and a gate driver applying the corrected gate-off voltage to the gate line.