公开(公告)号：US10598837B2

公开(公告)日：2020-03-24

申请号：US15696313

申请日：2017-09-06

Applicant: LG Display Co., Ltd.

Inventor： Seonghan Hwang ,  Hyunjong Noh ,  Youngwook Kim ,  Chimyung Ahn

IPC: G02B5/30 ,  H01L51/52 ,  G09G3/3225 ,  G02F1/1335

Abstract: Provided are a very highly transmissive polarizing plate which allows for improved luminance efficiency without reducing the degree of polarization by enhancing the color of the polarizing plate, and an organic light-emitting display device having the same. With this very highly transmissive polarizing plate, the brightness, lifetime, and efficiency of the organic light-emitting display device can be improved, and at the same time power consumption can be reduced.

公开(公告)号：US10700309B2

公开(公告)日：2020-06-30

申请号：US15383302

申请日：2016-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngwook Kim ,  Hyunjong Noh ,  Seonghan Hwang ,  Chimyung Ahn

IPC: H01L51/52 ,  G02B27/28 ,  G02B5/30 ,  H01L27/32 ,  G02B1/11

Abstract: Provided are an optical member for enhancing luminance and an organic light-emitting display device having the same. An optical member includes: a linear polarizer, a blue cholesteric liquid crystal (CLC) layer configured to transmit light, the light having only one of: a left-handed circularly polarized light component and a right-handed circularly polarized light component, and a quarter wave plate configured to convert the transmitted light, having the left-handed circularly polarized light component or right-handed circularly polarized light component, into linear polarized light, wherein the blue cholesteric liquid crystal (CLC) layer and the quarter wave plate are located on a same side of the linear polarizer.

公开(公告)号：US20220069259A1

公开(公告)日：2022-03-03

申请号：US17405948

申请日：2021-08-18

Applicant: LG Display Co., Ltd.

Inventor： Seonghan Hwang ,  Wonrae Kim

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: An organic light-emitting display device includes first to third color filters disposed respectively in first to third sub-pixel areas, a planarization layer disposed on the first to third color filters, and a bank layer disposed on the planarization layer and between adjacent sub-pixel areas, wherein a portion of the second color filter protrudes upwardly beyond a top face of the planarization layer, wherein the bank layer covers the portion of the second color filter protruding upwardly beyond the top face of the planarization layer. The display device has a stack structure of the portion of the blue color filter protruding upwardly beyond a top face of the planarization layer and the bank layer covering the portion, thereby suppressing light leakage between adjacent sub-pixel areas, and improving a lifetime of an organic light emitting element.

公开(公告)号：US11917856B2

公开(公告)日：2024-02-27

申请号：US17405948

申请日：2021-08-18

Applicant: LG Display Co., Ltd.

Inventor： Seonghan Hwang ,  Wonrae Kim

IPC: H10K50/86 ,  H10K59/122 ,  H10K71/00 ,  H10K59/124 ,  H10K59/12

CPC classification number: H10K50/865 ,  H10K59/122 ,  H10K71/00 ,  H10K59/1201 ,  H10K59/124

Abstract: An organic light-emitting display device includes first to third color filters disposed respectively in first to third sub-pixel areas, a planarization layer disposed on the first to third color filters, and a bank layer disposed on the planarization layer and between adjacent sub-pixel areas, wherein a portion of the second color filter protrudes upwardly beyond a top face of the planarization layer, wherein the bank layer covers the portion of the second color filter protruding upwardly beyond the top face of the planarization layer. The display device has a stack structure of the portion of the blue color filter protruding upwardly beyond a top face of the planarization layer and the bank layer covering the portion, thereby suppressing light leakage between adjacent sub-pixel areas, and improving a lifetime of an organic light emitting element.