Invention Grant
- Patent Title: Additive particles for improving optical performance of an electrophoretic display
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Application No.: US15687786Application Date: 2017-08-28
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Publication No.: US10578943B2Publication Date: 2020-03-03
- Inventor: Ming Wang , Yu Li , Hui Du , Haiyan Gu , Roman Ivanov , Robert A. Sprague , HongMei Zang , Xiaojia Zhang
- Applicant: E INK CALIFORNIA, LLC
- Applicant Address: US CA Fremont
- Assignee: E INK CALIFORNIA, LLC
- Current Assignee: E INK CALIFORNIA, LLC
- Current Assignee Address: US CA Fremont
- Agent Ioannis Constantinides
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G02F1/167 ; G02F1/1675
Abstract:
The present invention is directed to an electrophoretic fluid which comprises additive particles. The concentration of the additive particles in the electrophoretic fluid does not exceed 25% by weight and the additive particles are not seen at the viewing side during operation of the display. The resulting fluid can improve optical performance of a display device, such as image stability and contrast ratio. The present invention is also directed to an electrophoretic display comprising the electrophoretic fluid.
Public/Granted literature
- US20170357137A1 ADDITIVE PARTICLES FOR IMPROVING OPTICAL PERFORMANCE OF AN ELECTROPHORETIC DISPLAY Public/Granted day:2017-12-14
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