公开(公告)号：US20230215991A1

公开(公告)日：2023-07-06

申请号：US18077418

申请日：2022-12-08

Applicant: LG Display Co., Ltd.

Inventor： DaBin Kim ,  KyungKook Jang ,  SeungBum Lee ,  SeungRyong Lee ,  ChaeKyung Lim ,  Wonrae Kim ,  Jungmin Yoon

IPC: H01L33/50 ,  H01L25/16

CPC classification number: H01L33/504 ,  H01L25/167 ,  H01L33/507

Abstract: The present disclosure relates to a display device, including at least one or more light sources disposed for each pixel and a light conversion layer disposed on the light source to convert a wavelength of light generated from the light source, wherein the light conversion layer includes a perovskite matrix and quantum dots.

公开(公告)号：US11527593B2

公开(公告)日：2022-12-13

申请号：US17121362

申请日：2020-12-14

Applicant: LG Display Co., Ltd.

Inventor： Seungbum Lee ,  Wonrae Kim ,  Jungmin Yoon ,  Sooin Kim

IPC: H01L27/32 ,  H01L51/56

Abstract: An organic light-emitting display device includes a substrate; a thin-film transistor layer disposed on the substrate, and including a thin-film transistor including a gate electrode, a source electrode, and a drain electrode; a color filter layer disposed on the thin-film transistor layer and including a red color filter, a green color filter, and a blue color filter; an organic light-emitting element disposed on the color filter layer; and a plurality of out-coupling enhancing members formed in the thin-film transistor layer, wherein the out-coupling enhancing members are spaced from each other at a predetermined spacing and each of the out-coupling enhancing members extends in a stripe shape, and the out-coupling enhancing members vertically overlap the red color filter.

公开(公告)号：US11228012B2

公开(公告)日：2022-01-18

申请号：US16585199

申请日：2019-09-27

Applicant: LG Display Co., Ltd.

Inventor： Seungbum Lee ,  Wonrae Kim ,  Sooin Kim ,  Younghoon Kim ,  Jungmin Yoon ,  Hyungyu Kim

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50

Abstract: A self light-emitting display device includes a substrate having a circuit board and a color filter pattern on the circuit board. The circuit board includes a driving thin-film transistor. The display device further includes a passivation film above the substrate, a color conversion pattern above the passivation film and overlapping the color filter pattern, and a light-emitting layer above the passivation film and the color conversion pattern. The light emitting layer includes a flat part and a convex part. The convex part is above the color conversion pattern and protrudes convexly relative to the flat part.

公开(公告)号：US11800773B2

公开(公告)日：2023-10-24

申请号：US17384231

申请日：2021-07-23

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Younghoon Kim ,  Jungmin Yoon ,  Seungcheol You

IPC: H01L51/52 ,  H10K59/38 ,  H10K50/84 ,  H10K59/123 ,  H10K59/35

CPC classification number: H10K59/38 ,  H10K50/84 ,  H10K59/123 ,  H10K59/351 ,  H10K59/352 ,  H10K59/353

Abstract: An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2×2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.

公开(公告)号：US20220069015A1

公开(公告)日：2022-03-03

申请号：US17384231

申请日：2021-07-23

Applicant: LG Display Co., Ltd.

Inventor： Wonjin Choi ,  Younghoon Kim ,  Jungmin Yoon ,  Seungcheol You

IPC: H01L27/32 ,  H01L51/52

Abstract: An organic light emitting display device includes a substrate having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel arranged in a quad type of a 2×2 matrix form, a first color filter disposed in the first sub-pixel, a second color filter disposed in the second sub-pixel, a third color filter disposed in the third sub-pixel, and a planarization layer covering the first to third color filters, wherein the planarization layer has a concave portion of a lens shape in the fourth sub-pixel, wherein the concave portion has a width greater than that of the fourth sub-pixel. Accordingly, the organic light emitting display device with improved light extraction efficiency of the fourth sub-pixel may be implemented.

公开(公告)号：US20230056594A1

公开(公告)日：2023-02-23

申请号：US17888964

申请日：2022-08-16

Applicant: LG Display Co., Ltd.

Inventor： Youngsub Shin ,  ChaeKyung Lim ,  DaeHeung Lee ,  YoungHoon Kim ,  Jungmin Yoon

IPC: H01L27/32 ,  G02B5/20 ,  H01L51/52

Abstract: A display device includes a black matrix that is substantially entirely exposed by openings in a color filter in an active area, making it possible to suppress occurrence of diffuse reflection in the color filter.