Invention Grant
- Patent Title: Liquid crystal displays with reduced light leakage
- Patent Title (中): 具有减少漏光的液晶显示器
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Application No.: US13887904Application Date: 2013-05-06
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Publication No.: US09081230B2Publication Date: 2015-07-14
- Inventor: Yi Huang , Pongpinit Towashiraporn , Erik A. Zweigle , Mingxia Gu , Wei Chen , Cheng Chen , Young Cheol Yang , Isaac V. Kauvar
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Treyz Law Group
- Agent Michael H. Lyons
- Main IPC: G02F1/1333
- IPC: G02F1/1333 ; G02F1/13363 ; G02F1/1335 ; G02F1/01

Abstract:
A display is provided that has upper and lower polarizers, a color filter layer, a liquid crystal layer, and a thin-film transistor layer. The color filter layer and thin-film transistor layer may be formed from materials such as glass that are subject to stress-induced birefringence. To reduce light leakage that reduces display performance, one or more birefringence compensation layers may be incorporated into the display to help compensate for any birefringence effects. The compensation layers may include a birefringence compensation layer attached to the color filter layer or the thin-film transistor layer. A display may include an upper compensation layer attached to the color filter layer and a lower compensation layer attached to the thin-film transistor layer. The compensation layer may be formed from glass or polymer materials that have a negative photo-elastic constant.
Public/Granted literature
- US20140327861A1 Liquid Crystal Displays With Reduced Light Leakage Public/Granted day:2014-11-06
Information query
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