The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Feb. 20, 2019
Applicant:
E Ink California, Llc., Fremont, CA (US);
Inventors:
Craig Lin, Oakland, CA (US);
Chi-Mao Hung, Hsinchu, TW;
Assignee:
E INK CALIFORNIA, LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02F 1/167 (2019.01); G09G 3/20 (2006.01); G09G 3/34 (2006.01); G02F 1/133 (2006.01); G02F 1/1681 (2019.01); G02F 1/1675 (2019.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); G02F 1/13306 (2013.01); G09G 3/2003 (2013.01); G09G 3/344 (2013.01); G02F 1/1681 (2019.01); G02F 2001/1678 (2013.01); G02F 2201/121 (2013.01); G02F 2201/123 (2013.01); G02F 2203/34 (2013.01); G09G 2310/063 (2013.01); G09G 2310/068 (2013.01);
Abstract
The present invention provides driving methods for electrophoretic color display devices. The backplane system used for the driving methods is found to be simpler which renders color display devices more cost effective. More specifically, the driving method comprises first driving all pixels towards a color state by modulating only the common electrode, followed by driving all pixels towards their desired color states by maintaining the common electrode grounded and applying different voltages to the pixel electrodes.