发明授权
- 专利标题： Method and apparatus for improving contrast in electrophoretic display
- 专利标题（中）： 改善电泳显示对比度的方法和装置
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申请号： US722276申请日： 1976-09-10
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公开(公告)号： US4053768A公开(公告)日： 1977-10-11
- 发明人: John H. Lewis , Michael D. McDiarmid
- 申请人： John H. Lewis , Michael D. McDiarmid
- 申请人地址： CA Van Nuys
- 专利权人： Xonics, Inc.
- 当前专利权人： Xonics, Inc.
- 当前专利权人地址： CA Van Nuys
- 主分类号： G03G15/22
- IPC分类号： G03G15/22 ; G03G15/054 ; G03B41/16
摘要：
Apparatus and method for improving contrast in the visual image formed by toner deposited on an electrostatic image such as is formed in electronradiography. Electrophoretic toner particles and a dye are dispersed in a liquid, with the particles being deposited onto a substrate which carries the electrostatic image, with the selectively attracted particles forming the visual image. The visual image is viewed by reflected or scattered light with the light having a color emission spectrum substantially corresponding to the absorption spectrum of the dye for absorbing and thereby eliminating unwanted light.