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:
Aug. 18, 2020

Filed:

Dec. 19, 2016
Applicant:

Iix Inc., Tokyo, JP;

Inventors:

Makoto Hatakenaka, Tokyo, JP;

Takashi Sakamoto, Tokyo, JP;

Keisuke Okada, Tokyo, JP;

Assignee:

IIX INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/69 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
H04N 9/69 (2013.01); G09G 3/20 (2013.01); G09G 3/3233 (2013.01); G09G 3/36 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0285 (2013.01); G09G 2360/147 (2013.01);
Abstract

An unevenness correction system according to the present invention includes a panel drive circuit provided with a gamma correction circuit that performs gamma correction on an image signal input to an input interface, a gamma correction information acquisition circuit that acquires a gamma correction signal obtained through gamma correction as gamma correction information, an unevenness correction circuit that performs an unevenness correction on the gamma correction signal based on correction data, and an output interface that externally outputs the gamma correction information, and an unevenness correction apparatus provided with a pattern generator that outputs the image signal of a predetermined image to the input interface, and a control unit that generates correction data based on gamma correction information of each individual display panel input to and read by a gamma correction information reading unit from the output interface regarding the output image signal.


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