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.

Date of Patent:
Jan. 31, 2023

Filed:

Jul. 26, 2022
Applicant:

E Ink Corporation, Billerica, MA (US);

Inventors:

Teck Ping Sim, Acton, MA (US);

Yuval Ben-Dov, Cambridge, MA (US);

Joanna F. Au, Boston, MA (US);

Kenneth R. Crounse, Somerville, MA (US);

Assignee:

E Ink Corporation, Billerica, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/344 (2013.01); G09G 3/2007 (2013.01); G09G 2310/06 (2013.01); G09G 2310/068 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/045 (2013.01);
Abstract

A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory. In particular, the methods are effective for minimizing edge ghosting when a pixel of an active matrix electrophoretic display undergoes a white to white transition or a black to black transition during an update between first and second images.


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