ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,344, issued on Oct. 14, was assigned to CHIPONE TECHNOLOGY (BEIJING) Co. LTD. (Beijing).
"LED driver circuit and LED display apparatus" was invented by Yingjie Ma (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 substrat...