公开(公告)号：US20240428722A1

公开(公告)日：2024-12-26

申请号：US18467050

申请日：2023-09-14

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： CHE-WEI YEH ,  YU-HSIANG WANG ,  HO-CHUN CHANG ,  PO-HSIANG FANG

IPC: G09G3/32

Abstract: A light-emitting-diode driver structure applicable to driving a display panel and operation method thereof are provided. The LED driver structure includes at least one LED driving group, and the LED driving group is composed of a plurality of LED driving circuits which are serially connected in cascade. Each LED driving circuit of the LED driving group receives a data input signal in common. Upon receiving control signals, output signals are generated to drive the display panel. The multi-point driving circuit scheme can be fully or partially applied in the driver structure as required. In addition, a plurality of enable signals can be further adopted to activate each LED driving circuit, for avoiding the FIFO register used in the prior arts. By employing the disclosed technical contents, the present invention is effective in reducing both redundant power waste and circuit layout area of a conventional LED driver.