发明授权
US5993689A Polymer dispersed liquid crystal (PDLC) display element for use in an
electronic apparatus
失效
用于电子设备的聚合物分散液晶(PDLC)显示元件
- 专利标题: Polymer dispersed liquid crystal (PDLC) display element for use in an electronic apparatus
- 专利标题(中): 用于电子设备的聚合物分散液晶(PDLC)显示元件
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申请号: US799487申请日: 1997-02-12
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公开(公告)号: US5993689A公开(公告)日: 1999-11-30
- 发明人: Hidekazu Kobayashi , Eiji Chino , Masayuki Yazaki , Hidehito Iisaka
- 申请人: Hidekazu Kobayashi , Eiji Chino , Masayuki Yazaki , Hidehito Iisaka
- 申请人地址: JPX Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-70379 19930329; JPX5-302993 19931202; JPX6-5927 19940124; JPX6-44144 19940315
- 主分类号: C09K19/54
- IPC分类号: C09K19/54 ; G02F1/1334 ; C09K19/02 ; C09K19/04 ; G02F1/133
摘要:
A polymer dispersed liquid crystal (PDLC) display element for use in an electronic apparatus wherein the display element operates in a PDLC mode or reverse PDLC mode providing for reduction of visual display haze, improved display contrast. The particular medium includes a liquid crystal portion and a polymer portion and may include a chiral component. In cases where visual display haze and contract is a particular problem in the utility of the reverse PDLC display element, such as in the case where the display element is combined with a solar battery, a sufficient amount of dichroic dye is added to the liquid crystal portion of the medium, and, further, a compound showing no fluorescence emission with respect to a liquid crystal portion, or a polymer or a chiral polymer precursor portion of the medium, is employed. The resulting electronic apparatus can, therefore, incorporate a reverse PDLC type display element in combination with a solar battery or other component that affects display quality in such elements to improve the overall visual quality and contrast in the display rendering the display more useful in more miniaturized applications.
公开/授权文献
- US4644611A Snap hook 公开/授权日:1987-02-24
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