公开(公告)号：US20210337642A1

公开(公告)日：2021-10-28

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: H05B45/44 ,  G02F1/13357 ,  H05B45/10

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.

公开(公告)号：US20210335284A1

公开(公告)日：2021-10-28

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.