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:
Oct. 14, 2025
Filed:
Nov. 15, 2021
Chipone Technology (Beijing) Co., Ltd., Beijing, CN;
Yingjie Ma, Beijing, CN;
CHIPONE TECHNOLOGY (BEIJING) CO., LTD., Beijing, CN;
Abstract
Disclosed in an embodiment of the present application is an LED driver circuit and an LED display apparatus. The LED driver circuit comprises: a first component area, which comprises a first driving channel group and a second driving channel group that are arranged symmetrically and comprise a same number of driving channels, respectively; and a second component area, which is provided with an analog ground pad connected to a substrate of the driving channels through a metal wire. According to the present application, chip internal noise can be effectively reduced, and accuracy of matching output currents of the driving channels can be improved to obtain good current consistency, thereby being beneficial to guarantee display effect of a LED display screen.