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:
Apr. 26, 2022
Filed:
Nov. 14, 2019
Tcl China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Wenfang Li, Shenzhen, CN;
Dan Cao, Shenzhen, CN;
Other;
Abstract
The present disclosure proposes a power management chip, a driving method, and a driving system. The power management chip includes a register, a signal receiving circuit configured to receive a second voltage data, and a processing circuit configured to examine the first voltage data and the second voltage data and write the second voltage data into the register when the first voltage data and the second voltage data are different. After the signal receiving circuit receives the second voltage data, the processing circuit examines the first voltage data and the second voltage data to prevent the first voltage data from being modified. This prevents the abnormality of the display and solves the above-mentioned problem of a conventional power management chip, whose data may be modified such that the display panel abnormally displays.