发明授权
- 专利标题: Liquid crystal device having variable reflected wavelength
- 专利标题(中): 具有可变反射波长的液晶装置
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申请号: US09667641申请日: 2000-09-23
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公开(公告)号: US07710522B1公开(公告)日: 2010-05-04
- 发明人: Zili Li , Jon Schindler , Robert Akins , George Valliath
- 申请人: Zili Li , Jon Schindler , Robert Akins , George Valliath
- 申请人地址: US IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: US IL Schaumburg
- 代理商 Gary J. Cunningham
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335
摘要:
A liquid crystal device comprises a cholesteric liquid crystal material interposed between a transparent front plate and a back plate. The cholesteric liquid crystal material is switchable between a transparent state and a reflective state in response to an electric field applied in a first direction. In the reflective state the material reflects light characterized by a first wavelength when no electric field is applied. Electrodes are provided for applying an electric field lied to the cholesteric liquid crystal material in the reflective state in a second direction distinct from the first direction. In this manner the cholesteric liquid crystal material is altered to cause the material to reflect light characterized by a second wavelength different from the first wavelength. A display device may thus be produced having pixels capable of a wide range of colors, thereby achieving a multicolored image for the display.
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