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:
Apr. 28, 2020

Filed:

Aug. 25, 2016
Applicant:

Panasonic Liquid Crystal Display Co., Ltd., Hyogo, JP;

Inventors:

Masahiro Mori, Osaka, JP;

Shigeyuki Mori, Osaka, JP;

Takao Tanaka, Hyogo, JP;

Kazuya Nakamura, Chiba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1362 (2006.01); G02F 1/13 (2006.01); G09G 3/00 (2006.01); G02F 1/133 (2006.01); G02F 1/1335 (2006.01); G09G 3/36 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/136259 (2013.01); G02F 1/1309 (2013.01); G02F 1/13306 (2013.01); G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/133611 (2013.01); G09G 3/006 (2013.01); G09G 3/36 (2013.01); G02F 2201/508 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/08 (2013.01); G09G 2330/10 (2013.01);
Abstract

For suppressing a deterioration of display quality due to a luminance defect, a display device, a method of correcting a luminance defect and a luminance defect corrector are provided. The display device includes a first substrate (SUB) having gate lines (GL), data lines (DL), pixel electrodes (PIT), and a common electrode (CIT) on a first glass substrate (GB), and a second substrate (SUB) having a plurality of optically transparent parts (CF) and a light shield part (BM) on a second glass substrate (GB). The first or second glass substrate (GB) or (GB) contains a dimmer () including a plurality of dimming regions () that reduce the transmission of light. The dimmer () is formed to be superimposed on a trapped foreign matter () in plan view. This reduces the transmission of light from the luminance defect to suppress a deterioration of display quality.


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