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.:
Date of Patent:
Feb. 25, 2025
Filed:
Jul. 19, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Makoto Ikeda, Kanagawa, JP;
Takashi Ichimiya, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/3233 (2016.01); G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/041 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/08 (2013.01); G09G 2354/00 (2013.01);
Abstract
A display apparatus includes light emitting elements that are driven by current and a voltage control unit that controls a driving voltage for driving the light emitting elements based on a temperature of the display apparatus. The voltage control unit performs control such that an amount of change in the driving voltage per unit time does not exceed a predetermined limited range. The predetermined limited range is determined based on a relationship between the change in the driving voltage and a change in a light emission luminance of the light emitting elements.