- 专利标题: Front-lit reflective display device
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申请号: US13984239申请日: 2012-02-23
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公开(公告)号: US10288254B2公开(公告)日: 2019-05-14
- 发明人: Kevin R. Schaffer , David Scott Thompson , Zhaohui Yang , Encai Hao , Audrey A. Sherman , Michael A. Meis , William J. Bryan , John A. Wheatley , Joseph W. Woody , Steven D. Solomonson , Matthew S. Stay , Mikhail L. Pekurovsky
- 申请人: Kevin R. Schaffer , David Scott Thompson , Zhaohui Yang , Encai Hao , Audrey A. Sherman , Michael A. Meis , William J. Bryan , John A. Wheatley , Joseph W. Woody , Steven D. Solomonson , Matthew S. Stay , Mikhail L. Pekurovsky
- 申请人地址: US MN St. Paul
- 专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人地址: US MN St. Paul
- 代理商 Clifton F. Richardson
- 国际申请: PCT/US2012/026237 WO 20120223
- 国际公布: WO2012/116129 WO 20120830
- 主分类号: F21V7/04
- IPC分类号: F21V7/04 ; F21V5/00 ; B82Y30/00 ; G02F1/1335 ; F21V8/00 ; G02F1/167 ; B82Y20/00
摘要:
This application describes a front-lit reflective display assembly including a reflective display and an illumination article for front-lighting the display when the article is optically coupled to a light source. The illumination article includes a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first and second regions, the first region comprising nanovoided polymeric material, the second region comprising the nanovoided polymeric material and an additional material, the first and second regions being disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. Front-lit reflective display devices including the front-lit reflective display assembly optically coupled to a light source are also described.
公开/授权文献
- US20150330597A2 FRONT-LIT REFLECTIVE DISPLAY DEVICE 公开/授权日:2015-11-19