- 专利标题: Gray scale inversion reduction or prevention in liquid crystal displays
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申请号: US12794623申请日: 2010-06-04
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公开(公告)号: US10108049B2公开(公告)日: 2018-10-23
- 发明人: EnkhAmgalan Dorjgotov , Zhibing Ge , Ming Xu , Cheng Chen , Young Bae Park , John Z. Zhong , Wei Chen , Shawn Robert Gettemy
- 申请人: EnkhAmgalan Dorjgotov , Zhibing Ge , Ming Xu , Cheng Chen , Young Bae Park , John Z. Zhong , Wei Chen , Shawn Robert Gettemy
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Fletcher Yoder PC
- 主分类号: G09G3/36
- IPC分类号: G09G3/36 ; G02F1/1337
摘要:
Devices and methods related to high-contrast liquid crystal displays (LCDs) are provided. For example, such an electronic device may include an LCD with two liquid crystal alignment layers not symmetric to one another and upper and lower polarizing layers respectively above and below the alignment layers. Light transmittance through the plurality of pixels may increase monotonically with gray scale voltage. The display may operate using a gray scale level 0 voltage higher than a minimum gray scale level 0 voltage capability of the display. Additionally or alternatively, liquid crystal molecular alignment axes of the two alignment layers may be offset from one another by an angle other than a multiple of 180 degrees. Additionally or alternatively, a first polarizing axis of the upper polarizing layer or a second polarizing axis of the lower polarizing layer, or both, may be neither parallel nor perpendicular to one of the liquid crystal molecular alignment axes.
公开/授权文献
- US20110298833A1 HIGH CONTRAST LIQUID CRYSTAL DISPLAY 公开/授权日:2011-12-08
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