公开(公告)号：US20230171995A1

公开(公告)日：2023-06-01

申请号：US17944409

申请日：2022-09-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Jungim HWANG ,  Taewoon KO ,  Hyunjong NOH

IPC: H01L29/08 ,  G02B5/30

CPC classification number: H01L51/5293 ,  G02B5/3083 ,  H01L51/56

Abstract: A display device includes a substrate, an alignment film positioned on the substrate, a polarizing layer positioned on the alignment film, and an optical compensation film positioned between the substrate and the alignment film, wherein the optical compensation film has a structure with a first optical compensation film having a phase difference value of λ/4 of a wavelength of transmitted light and a second optical compensation film having a phase difference value of λ/2 of the wavelength of the transmitted light stacked with each other.

公开(公告)号：US20180006274A1

公开(公告)日：2018-01-04

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 ,  G02B5/30 ,  H01L27/32

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：US20180120490A1

公开(公告)日：2018-05-03

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

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.