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.:

US 9472141 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 18, 2016

Filed:

Sep. 24, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Teruki Kikkawa, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3406 (2013.01); G09G 3/342 (2013.01); G09G 3/3426 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/041 (2013.01); G09G 2320/045 (2013.01); G09G 2320/062 (2013.01); G09G 2320/064 (2013.01); G09G 2320/066 (2013.01); G09G 2360/145 (2013.01); G09G 2360/147 (2013.01); G09G 2360/16 (2013.01);
Abstract

A display apparatus according to the present invention includes: a backlight; a displaying unit configured to display an image on a screen by allowing the light from the backlight to be transmitted therethrough; a first measuring unit provided on a light-emitting surface of the backlight, to detect the brightness on the light-emitting surface; a correcting unit configured to correct the detection brightness which is the brightness detected by the first measuring unit; and a controlling unit configured to control the light emission brightness of the backlight. The correcting unit reduces the detection brightness by a greater reduction amount, when the image displayed in a predetermined area corresponding to a position where the first measuring unit is provided is dark, than when the image displayed in the predetermined area is bright.


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