Invention Grant
US08958034B2 Polarizing plate comprising a compensation film having a first retardation value Ro and a second retardation value Rth and liquid crystal display having the same
有权
偏振板包括具有第一延迟值Ro和第二延迟值Rth的补偿膜和具有该补偿膜的液晶显示器
- Patent Title: Polarizing plate comprising a compensation film having a first retardation value Ro and a second retardation value Rth and liquid crystal display having the same
- Patent Title (中): 偏振板包括具有第一延迟值Ro和第二延迟值Rth的补偿膜和具有该补偿膜的液晶显示器
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Application No.: US13857347Application Date: 2013-04-05
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Publication No.: US08958034B2Publication Date: 2015-02-17
- Inventor: Min Oh Choi , Hee Wook Do , Kyeongha Kim , Duckjong Suh , Tecksoo Kim , Seungbeom Park , Sang-Gu Lee
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2012-0126008 20121108
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A liquid crystal display includes a liquid crystal panel, a polarizing plate on a surface of the liquid crystal panel and having a polarizing axis; and a compensation film between the liquid crystal panel and the polarizing plate, and having an optical axis at which light passes through the compensation film. When a surface of the compensation film is referred to as a x-y plane, a plane passing through an x-axis and vertical to the optical axis of the compensation film is referred to as an x-y′ plane. A first retardation value (Ro′) of the compensation film is (nx−ny′)d, and a second retardation value (Rth′) is [(nx+ny′)/2−nz′]d, and the first and second retardation values (Ro′) and (Rth′) satisfy the following Formula of 0.92≦Rth′/Ro′≦4.75, where ‘n’ denotes a refractive index and ‘d’ denotes a thickness of the compensation film in a z-axis direction.
Public/Granted literature
- US20140125924A1 POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY HAVING THE SAME Public/Granted day:2014-05-08
Information query
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