公开(公告)号：US10902767B1

公开(公告)日：2021-01-26

申请号：US16726962

申请日：2019-12-26

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tsung-Hau Chang ,  Chi-Wei Liu ,  Ping Chen

IPC: G09G3/20

Abstract: A driving circuit of display apparatus includes an operational amplifier (OP), comprising a plurality of input terminals; a digital-to-analog converter (DAC); a multiplexer, coupled to the OP and the DAC, comprising a plurality of switches; and a boosting module, configured to decrease an equivalent time constant between the DAC and the OP to increase an output slew rate of the OP in a boosting period; wherein the boosting period is enabled before a steady state of the OP.