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:
May. 17, 2022
Filed:
Dec. 29, 2020
Realtek Semiconductor Corporation, Hsinchu, TW;
Li-Ang Chen, Hsinchu, TW;
REALTEK SEMICONDUCTOR CORPORATION, Hsinchu, TW;
Abstract
A control chip configured to be coupled with a backlight driving chip and a display panel is provided. The control chip includes a storage element and a processing circuit. The storage element is configured to store a predetermined vertical refresh rate of the display panel. The processing circuit is coupled with the storage element, and is configured to provide a switching signal to the backlight driving chip so that the backlight driving chip enables a backlight module according to the switching signal. A frequency of the switching signal is equal to the predetermined vertical refresh rate. If the processing circuit has not received a vertical refresh starting pulse for more than a predetermined frame time corresponding to the predetermined vertical refresh rate, the processing circuit increases the frequency of the switching signal.