公开(公告)号：US20230100512A1

公开(公告)日：2023-03-30

申请号：US16960557

申请日：2020-05-14

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Qingsheng LAN ,  Fuyi WANG

IPC: G09G3/34 ,  G09G3/36

Abstract: A backlight module and a display device are provided. The backlight module includes a backlight and a driving circuit for driving the backlight. In the driving circuit corresponding to at least one backlight unit in the backlight, a data signal input module is configured for inputting a first data signal to a first point during a detection stage, and inputting a compensated second data signal to the first point according to a threshold voltage detected by a detection module during a display stage. The present invention improves uniformity of light emission of the backlight module.

公开(公告)号：US20240029607A1

公开(公告)日：2024-01-25

申请号：US17418889

申请日：2021-05-27

Applicant: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD. ,  TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Qingsheng LAN

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0272 ,  G09G2330/021

Abstract: The present disclosure provides a drive circuit that comprises: an electrical module and an electrical sub-module connected to the electrical module. When the electrical sub-module detects that an input voltage and an output voltage of the electrical module are equal, an initial quiescent current of the electrical module is reduced, when there is a difference between the input voltage and the output voltage of the electrical module, the initial quiescent current of the electrical module is reduced after maintaining or increasing the initial quiescent current of the electrical module for a preset time period.

公开(公告)号：US20240038114A1

公开(公告)日：2024-02-01

申请号：US17618516

申请日：2021-11-04

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Jinfeng LIU ,  Qingsheng LAN

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0275 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/0289 ,  G09G2310/0297 ,  G09G2330/021

Abstract: A data driving chip and a display device are disclosed. The data driving chip and the display device includes a signal identifying circuit between the digital signal processing circuit and the analog signal processing circuit. In this way, the signal identifying circuit could identify the signal in the display data signal. When the signal identifying circuit identifies the invalid display command signal, the signal identifying circuit controls the invalid display signal not to be outputted to the analog signal processing circuit such that the power consumption could be reduced.

公开(公告)号：US20250095601A1

公开(公告)日：2025-03-20

申请号：US18289030

申请日：2023-10-07

Applicant: Huizhou China Star Optoelectronics Display Co., Ltd. ,  TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Qingsheng LAN ,  Weifeng CHEN

IPC: G09G3/36

Abstract: According to the data driver and the display device provided in the present application, the control module obtains the frequency value of image data according to the image data and outputs the control signal from the plurality of first output terminals according to the frequency value so that the recovery module recovers the clock signal corresponding to the image data under control of the control signal. By outputting the clock signal having corresponding data rate through the frequency value of the image data, an adaptive data rate function can be realized, and a wider data rate range can be realized.

公开(公告)号：US20230094046A1

公开(公告)日：2023-03-30

申请号：US16960556

申请日：2020-06-05

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Fuyi WANG ,  Fengcheng XU ,  Qingsheng LAN ,  Jinfeng LIU

IPC: G09G3/34 ,  G09G3/20

Abstract: A backlight unit, a control method thereof, and a liquid crystal display device are provided. The control method includes following steps: obtaining backlight data corresponding to each of the partitions, the backlight data including multiple bits of data; dividing a frame of a lighting process of each light-emitting unit of the partitions into a plurality of sub-fields having different durations, wherein each of the sub-fields corresponds to one of the bits of data; and outputting the sub-fields having different durations corresponding to each of the partitions in a preset order.