Invention Grant
- Patent Title: Magnetophoretic and electromagnetophoretic displays
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Application No.: US13206388Application Date: 2011-08-09
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Publication No.: US09114663B2Publication Date: 2015-08-25
- Inventor: Ching-Shon Ho , Jerry Chung , Paul Gendler , Rong-Chang Liang , HongMei Zang
- Applicant: Ching-Shon Ho , Jerry Chung , Paul Gendler , Rong-Chang Liang , HongMei Zang
- Applicant Address: US CA Fremont
- Assignee: E Ink California, LLC
- Current Assignee: E Ink California, LLC
- Current Assignee Address: US CA Fremont
- Agency: Perkins Coie LLP
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G09G3/34 ; B43L1/00 ; G02F1/09 ; G09F9/37

Abstract:
The present invention is directed to a display device which comprises two layers of insulating substrate, at least the substrate on the viewing side is transparent, an array of display cells sandwiched between the two layers of substrate, a writing means, and optionally an erasing means to magnetically or electrically erase the image. The display cells are filled with a dispersion of magnetic particles which may be charged or non-charged. The display of the invention eliminates the use of the transparent conductor film, such as ITO, on the viewing side. Therefore, the displays of this invention are more cost effective, more flexible and durable and capable of higher image contrast ratio and higher reflectance in the Dmin area.
Public/Granted literature
- US20110292495A1 MAGNETOPHORETIC AND ELECTROMAGNETOPHORETIC DISPLAYS Public/Granted day:2011-12-01
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