发明授权
- 专利标题: Macromolecular dispersion type liquid crystal display element and method of manufacturing the same
- 专利标题(中): 高分子分散型液晶显示元件及其制造方法
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申请号: US09712126申请日: 2000-11-15
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公开(公告)号: US06355314B1公开(公告)日: 2002-03-12
- 发明人: Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
- 申请人: Hirofumi Kubota , Shinya Kosako , Kenji Nakao , Noriko Naito , Tsuyoshi Uemura , Masao Yamamoto
- 优先权: JP8-242755 19960913; JP8-310335 19961121; JP8-317509 19961128; JP8-341013 19961220; JP9-113782 19970501
- 主分类号: C09K1938
- IPC分类号: C09K1938
摘要:
A polymer dispersion type liquid crystal display element is disclosed. The element has a polymer dispersion type liquid crystal sandwiched between a pair of substrates, each having an inside electrode. Liquid crystal droplets are dispersed either in a polymer matrix continuous phase or in a three-dimensional matrix-containing polymer. When no voltage is applied to the electrodes, the liquid crystal molecules in the droplets present a bipolar-form orientation pattern having at least two poles in the vicinity of the interfaces between the liquid crystal droplets and the polymer. When a clear point transition temperature of the liquid crystal is Tni, the pattern of bipolar-form orientation is maintained at least when the element is operating at a temperature in the range of 5° C. to (Tni−5)° C.