Invention Grant
- Patent Title: Electrophoretic medium comprising a mixture of charge control agents
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Application No.: US15707159Application Date: 2017-09-18
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Publication No.: US10040954B2Publication Date: 2018-08-07
- 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 ; C09D5/44
Abstract:
An electrophoretic medium including a mixture of charge control agents, for example quaternary amine salts of polyisobutylene combined with quaternary amine salts of polyesters. 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
- US20180002543A1 ELECTROPHORETIC MEDIUM COMPRISING A MIXTURE OF CHARGE CONTROL AGENTS Public/Granted day:2018-01-04
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