公开(公告)号：US12057056B2

公开(公告)日：2024-08-06

申请号：US17755464

申请日：2022-02-25

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

Inventor： Ruixiong Li ,  Jinjia Chen

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A driving circuit and a display panel are provided. The driving circuit includes a light-emitting device, a light-emitting controlling module, and a grayscale controlling module. The grayscale controlling module includes a first transistor and a second transistor. A conduction time of the first transistor partially overlaps the conduction time of the second transistor to realize that a light-emitting duration of the light-emitting device is less than a minimum conduction time of the first transistor or the minimum conduction time of the second transistor.

公开(公告)号：US20240169890A1

公开(公告)日：2024-05-23

申请号：US17755464

申请日：2022-02-25

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

Inventor： Ruixiong Li ,  Jinjia Chen

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A driving circuit and a display panel are provided. The driving circuit includes a light-emitting device, a light-emitting controlling module, and a grayscale controlling module. The grayscale controlling module includes a first transistor and a second transistor. A conduction time of the first transistor partially overlaps the conduction time of the second transistor to realize that a light-emitting duration of the light-emitting device is less than a minimum conduction time of the first transistor or the minimum conduction time of the second transistor.

公开(公告)号：US11915635B2

公开(公告)日：2024-02-27

申请号：US17771482

申请日：2022-03-21

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

Inventor： Ruixiong Li ,  Jinjia Chen

IPC: G09G5/10 ,  G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0626

Abstract: A dimming method and device of a display panel, a storage medium, and a terminal equipment are provided. In a second dimming stage in a frame of one frame of an image, a grayscale of a light-emitting stage of the display is controlled by the light-emitting signal. In a first dimming stage in the frame of the image, the grayscale of the light-emitting stage of the display panel is controlled by superposing a control signal in the light-emitting signal. Therefore, in a low grayscale, the grayscale is realized by reducing an amplitude of the light-emitting signal.