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:
Jul. 29, 2025
Filed:
Apr. 16, 2024
Shenzhen Skyworth-rgb Electronic Co., Ltd., Shenzhen, CN;
Qiaofu Pan, Shenzhen, CN;
Jianhua Zhou, Shenzhen, CN;
Xiangfeng Hu, Shenzhen, CN;
Wenxiang Yang, Shenzhen, CN;
Deqiang Huang, Shenzhen, CN;
Yawei Li, Shenzhen, CN;
SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD., Shenzhen, CN;
Abstract
Disclosed are a local dimming drive circuit, a local dimming drive method, a local dimming drive system and an electronic equipment. The local dimming drive circuit includes: a dimming control circuit and a constant current drive circuit; the input end of the dimming control circuit is connected to the mainboard, and the output end of the dimming control circuit is connected to the input end of the constant current drive circuit, and the output end of the constant current drive circuit is connected to the backlight panel; the mainboard is configured to provide the first backlight brightness data and the first vertical synchronization signal; the dimming control circuit is configured to obtain the second backlight brightness data according to the first backlight brightness data, and output the second backlight brightness data at the refresh rate of the first vertical synchronization signal.