公开(公告)号：US20230360613A1

公开(公告)日：2023-11-09

申请号：US17433983

申请日：2021-05-31

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

Inventor： Zhao Wang ,  Jinfeng Liu

IPC: G09G3/34 ,  G09G3/32

CPC classification number: G09G3/3426 ,  G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/06 ,  G09G2320/0271

Abstract: A mini LED backlight module, a driving circuit and a display device are provided. Emitting units of the same row in the mini LED backlight module are divided into multiple sections that could be illuminated differently. This could avoid the issue of a high backlight current pulse when each row of light emitting units in different backlight sections is simultaneously illuminated and thus alleviate the issue of reducing the lifetime of light emitting units.

公开(公告)号：US11250792B2

公开(公告)日：2022-02-15

申请号：US16969625

申请日：2020-05-12

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

Inventor： Fuyi Wang ,  Mingjong Jou ,  Zhao Wang ,  Fengcheng Xu ,  Jinfeng Liu

IPC: G09G3/34

Abstract: The present invention provides a backlight partition driving module, a backlight device, and a display device which include a signal input module configured to receive a driving signal, wherein the driving signal includes a brightness data signal, a scanning signal, and a function signal; a signal transmission module transmitting the driving signal; and a selection output module receiving the driving signal and is configured to output the scanning signal to a scanning line or the brightness data signal to a data line under control of the function signal.

公开(公告)号：US11259384B2

公开(公告)日：2022-02-22

申请号：US16769863

申请日：2020-05-09

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

Inventor： Fuyi Wang ,  Mingjong Jou ,  Zhao Wang ,  Fengcheng Xu ,  Jinfeng Liu

IPC: G09G3/00 ,  G02F1/13 ,  H05B45/10 ,  H05B45/44 ,  G02F1/13357 ,  G02F1/1335

Abstract: The present invention provides a backlight unit and a control method thereof, and a liquid crystal display device. The control method includes steps as follows: obtaining backlight data corresponding to each partition, wherein the backlight data comprises a plurality of bits of data; dividing the light-emitting unit of each partition into a plurality of subfields with different durations in a light-emitting process during a frame, wherein each subfield corresponds to one bit of data, and any two subfields comprise different numbers of secondary subfields; and outputting the plurality of subfields in a preset order.