公开(公告)号：US12062325B2

公开(公告)日：2024-08-13

申请号：US17963847

申请日：2022-10-11

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd.

Inventor： Shuo Tang ,  Chuan Liu ,  Zhihua Yu

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2310/0267 ,  G09G2320/0233

Abstract: A display panel and a display device are provided. The display panel includes pixel row groups, scanning driving circuits, first data lines and second data lines. One pixel row group includes first pixel rows and one pixel row includes a first pixel and a second pixel. A luminous efficiency of color light of the first pixel is lower than a luminous efficiency of color light of the second pixel. One scanning driving circuit includes a first sub scanning driving circuit and a second sub scanning driving circuit. In at least one image frame, a duration during which the first pixel is connected to the first data line for transmitting data voltage controlled by the first sub scanning driving circuit is larger than a duration during which the second pixel is connected to the second data line for transmitting data voltage controlled by the second sub scanning driving circuit.

公开(公告)号：US11605349B2

公开(公告)日：2023-03-14

申请号：US17527418

申请日：2021-11-16

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd.

Inventor： Shuo Tang ,  Zhihua Yu ,  Jun Li

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: Provided are a display panel and a display device. The display panel includes a pixel driving circuit and a reset control circuit. The pixel driving circuit includes a light-emitting element, a first reset module, a first control module, a data write module, a driving transistor, a second reset module and a second control module. In the initial reset stage of the pixel driving circuit, the reset control circuit is configured to control the first reset module to turn on and apply a reset voltage of the reset voltage terminal to the first electrode of the light-emitting element, and the first scan signal terminal is configured to control the second reset module to turn on and apply the reset voltage to the gate of the driving transistor.

公开(公告)号：US11810521B1

公开(公告)日：2023-11-07

申请号：US17871289

申请日：2022-07-22

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd.

Inventor： Xigang Liu ,  Shuo Tang ,  Zhihua Yu ,  Xiangyu Gao

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/027

Abstract: A display drive method is applied to a display panel. The display panel has a subpixel used for image display. The display drive method includes obtaining a to-be-displayed grayscale of a to-be-displayed subpixel, selecting a suitable compensation manner based on the to-be-displayed grayscale, and providing a data voltage for the to-be-displayed sub-pixel based on the selected compensation manner. The compensation manner includes a first compensation manner and a second compensation manner. When the to-be-displayed grayscale is 0 grayscale, the first compensation manner is selected. When the to-be-displayed grayscale is greater than 0 grayscale, the second compensation manner is selected. The first compensation manner is used to reduce a difference between light-emitting efficiencies of sub-pixels with different light-emitting colors under a same grayscale.