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:
Oct. 23, 2018

Filed:

Jan. 21, 2015
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Kazuhisa Mizusako, Shiojiri, JP;

Hiroyuki Hosaka, Matsumoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G02F 1/1343 (2006.01); G02F 1/1362 (2006.01); G02F 1/1368 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3696 (2013.01); G09G 3/3614 (2013.01); G09G 3/3655 (2013.01); G02F 1/1368 (2013.01); G02F 1/134309 (2013.01); G02F 1/136286 (2013.01); G02F 2201/121 (2013.01); G02F 2201/123 (2013.01); G09G 3/3677 (2013.01); G09G 3/3688 (2013.01); G09G 2300/0426 (2013.01); G09G 2320/0261 (2013.01); G09G 2320/0646 (2013.01); G09G 2320/103 (2013.01); G09G 2340/04 (2013.01); G09G 2340/0457 (2013.01);
Abstract

A video processing circuit detects a boundary between a first pixel to which an application voltage which is a first voltage is applied, and a second pixel to which an application voltage which is a second voltage higher than the first voltage is applied, based on a video signal indicating a video which alternately switches a first video and a second video which is obtained by moving in parallel with the first video for each unit frame, corrects the application voltage such that a fringe electric field occurring at the boundary is decreased, when determining a boundary detected by the boundary detection unit in a kth unit frame does not exist in a (k−2)th unit frame, and the boundary is a boundary which is moved from a (k−1)th unit frame to the kth unit frame, and outputs the corrected video signal such that the liquid crystal panel is driven.


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