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:
Mar. 31, 2026
Filed:
Apr. 02, 2025
Radiant Opto-electronics Corporation, Kaohsiung City, TW;
Pei-Ting Chen, Kaohsiung City, TW;
Peng-Hsiang Wu, Kaohsiung City, TW;
Jon-Hong Lin, Kaohsiung City, TW;
Radiant Opto-Electronics Corporation, Kaohsiung City, TW;
Abstract
A backlight control circuit includes a power supply circuit, a local dimming circuit, a backlight driving circuit, and a supply voltage adjustment circuit. The power supply circuit is used to output the power supply voltage to a backlight module. The backlight module has multiple dimming zones, and each dimming zone has light emitting diodes (LEDs). The local dimming circuit is used to generate a local dimming signal according to image data and a configuration of the dimming zones. The backlight driving circuit is used to generate backlight driving signals to the dimming zones of the backlight module according to the local dimming signal. The supply voltage adjustment circuit is used to generate a first supply voltage adjustment signal to the power supply circuit for adjusting the power supply voltage based on the local dimming signal and a characteristic data of each LED in the dimming zones.