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US Patent 8670174 Electrophoretic display fluid

Patent 8670174 was granted and assigned to Sipix Imaging on March, 2014 by the United States Patent and Trademark Office.

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Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Date of Patent

March 11, 2014

Patent Application Number

13300178

Date Filed

November 18, 2011

Patent Citations Received

US Patent 12130530 Applications of electro-optic displays

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US Patent 12094429 Method for driving electrophoretic display device

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US Patent 12125449 Continuous waveform driving in multi-color electrophoretic displays

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US Patent 12131713 Continuous waveform driving in multi-color electrophoretic displays

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US Patent 11656523 Reflective electrophoretic displays including photo-luminescent material and color filter arrays

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US Patent 11686989 Four particle electrophoretic medium providing fast, high-contrast optical state switching

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US Patent 11708720 Light-modulating electrophoretic device

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US Patent 11749218 Method of forming an electro-optic medium

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Patent Primary Examiner

David N. Spector

Patent abstract

This invention relates to an electrophoretic display fluid comprising a non-mobile or semi-mobile phase and two types of charged pigment particles dispersed in a solvent or solvent mixture, and an electrophoretic display device utilizing such an electrophoretic display fluid. The electrophoretic fluid of the present invention provides improved image qualities.

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