公开(公告)号：US20220208076A1

公开(公告)日：2022-06-30

申请号：US17135906

申请日：2020-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Haibin SHAO ,  Yan HE ,  Qingjie MA ,  Wei XU

IPC: G09G3/32 ,  G09G5/10

Abstract: A light-emitting diode (LED) display driver circuit includes: a set of channels, each channel of the set of channels having a respective current control circuit; and control circuitry coupled to each respective current control circuit and configured to adjust a respective control signal to each respective current control circuit responsive to an LED brightness estimate for each channel of the set of channels.

公开(公告)号：US20230067472A1

公开(公告)日：2023-03-02

申请号：US17463239

申请日：2021-08-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yan HE ,  Yang WANG ,  Haibin SHAO ,  Shang DING ,  Wei XU ,  Qingjie MA

IPC: H05B45/325 ,  G05B23/02 ,  H05B45/34

Abstract: A light emitting diode (LED) matrix driver includes a scan line switch coupled to a scan line of an LED matrix and adapted to be coupled to a signal ground; a first voltage clamp coupled to the scan line switch and the scan line; and a second voltage clamp coupled to the scan line.