Invention Grant
- Patent Title: Electrophoretic medium comprising a mixture of charge control agents
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Application No.: US16055523Application Date: 2018-08-06
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Publication No.: US10233339B2Publication Date: 2019-03-19
- Inventor: Hui Du , Joshua A Ritchey , Olga Vladimirovna Barykina-Tassa , Vladimir Sofiyev
- Applicant: E Ink Corporation
- Applicant Address: US CA Fremont
- Assignee: E INK CALIFORNIA, LLC
- Current Assignee: E INK CALIFORNIA, LLC
- Current Assignee Address: US CA Fremont
- Agent Brian D. Bean
- Main IPC: G02F1/167
- IPC: G02F1/167 ; C08F10/10 ; C08F8/44 ; C09D5/44 ; G02F1/1675
Abstract:
An electrophoretic medium including a mixture of charge control agents, for example quaternary amine salts of polyisobutylene combined with quaternary amine salts of unsaturated monomers. The described electrophoretic medium exhibits improved color saturation as compared to similar electrophoretic media having only one of the charge control agents.
Public/Granted literature
- US20180340084A1 ELECTROPHORETIC MEDIUM COMPRISING A MIXTURE OF CHARGE CONTROL AGENTS Public/Granted day:2018-11-29
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