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. 17, 2023

Filed:

Apr. 20, 2021
Applicant:

Tcl China Star Optoelectronics Technology Co., Ltd., Guangdong, CN;

Inventors:

Xiong Hu, Guangdong, CN;

Yu Wu, Guangdong, CN;

Haoran Li, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); H05B 45/46 (2020.01); H04N 9/31 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2018 (2013.01); G09G 3/3406 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/064 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0633 (2013.01); G09G 2330/021 (2013.01);
Abstract

A backlight brightness control method, a backlight brightness control device, and a display equipment are provided. By using a constant current integrated circuit to input constant current to backlight sources in backlight partitions, uniformity of backlight brightness is allowed to be improved. By determining a target peak current inputted to the backlight sources in the backlight partitions according to a grayscale level of partition images, not only can the backlight brightness required by a high grayscale level be ensured, but fine adjustment of the backlight brightness under a low grayscale level can also be ensured.


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