公开(公告)号：US20240274061A1

公开(公告)日：2024-08-15

申请号：US18204967

申请日：2023-06-02

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Zhiqiang GE ,  Yinzeng Li ,  Yang Liu ,  Jingxiong Zhou

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G2320/0233 ,  G09G2354/00 ,  G09G2360/16

Abstract: The present application discloses a luminance compensation method of a display panel, a luminance compensation apparatus, a luminance compensation device and a storage medium. The method includes: acquiring first correspondence relationships respectively corresponding to touch sensing regions, wherein the first correspondence relationship is a correspondence relationship of light-emitting luminance and mutual capacitances; acquiring first mutual capacitances of the touch sensing regions transmitted by a touch chip; determining actual luminance values of light-emitting pixel regions respectively corresponding to the touch sensing regions according to the first mutual capacitances and the first correspondence relationships of the touch sensing regions, wherein the light-emitting pixel region comprises at least one light-emitting pixel; generating a compensation instruction according to the actual luminance values of the light-emitting pixel regions and target luminance values, thereby causing a driving chip to make luminance compensation for the light-emitting pixel regions according to the compensation instruction.

公开(公告)号：US20230377519A1

公开(公告)日：2023-11-23

申请号：US18362994

申请日：2023-08-01

Applicant: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.

Inventor： Zhiqiang GE ,  Jingxiong ZHOU ,  Qicheng SUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0861 ,  G09G2300/0842 ,  G09G2300/0819

Abstract: A pixel circuit, a driving method thereof, and a display apparatus are provided. The pixel circuit includes a leakage current compensation module, configured to output a leakage current compensation voltage to a gate of a driving transistor at a light-emitting control stage of the pixel circuit, to control a potential change of the gate of the driving transistor to be opposite to a potential change caused by a leakage current at the gate of the driving transistor. At the light-emitting stage, the voltage of the gate of the driving transistor is compensated for by the leakage current compensation module, to compensate for the potential change caused by the leakage current, ensuring high stability of potential at the gate of the driving transistor, making the driving current generated by the driving transistor highly stable, and alleviating the flickering problem when the display apparatus displays images.