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：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.