公开(公告)号：US11626086B1

公开(公告)日：2023-04-11

申请号：US17873878

申请日：2022-07-26

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

Inventor： Yajun Hei ,  Guang Wang ,  Zhenyuan Zhang ,  Jingxiong Zhou

IPC: G09G5/10

Abstract: A method for adjusting brightness of a display panel and a device for adjusting brightness of a display panel are provided. The display panel includes a plurality of sub-pixels, and the method includes adjusting data voltages of at least two sub-pixels of the plurality of sub-pixels to be different when performing a zero grayscale display.

公开(公告)号：US20210343222A1

公开(公告)日：2021-11-04

申请号：US17240223

申请日：2021-04-26

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

Inventor： Yajun Hei ,  Jingxiong Zhou ,  Ruiyuan Zhou ,  Sha Lin ,  Zhongjie Zhang ,  Chunmei Gao

IPC: G09G3/20 ,  G06T7/11

Abstract: Provided are a method for driving a display panel, a display driving device and an electronic device. The method includes: acquiring any one frame of the picture to de displayed; dividing the any one frame of the picture to be displayed into a first partition picture, a second partition picture and a third partition picture; displaying the first partition picture in the first display region, displaying the second partition picture in the second display region, and displaying the third partition picture in the third display region; where in a same frame of picture to be displayed, a density A1 of sub-pixels for displaying the first partition picture, a density A2 of sub-pixels for displaying the second partition picture and a density A3 of sub-pixels for displaying the third partition picture satisfy that A1≤A2≤A3; and where sub-pixels in the second display region include first sub-pixels and second sub-pixels.

公开(公告)号：US11074841B2

公开(公告)日：2021-07-27

申请号：US16460809

申请日：2019-07-02

Applicant: WuHan TianMa Micro-electronics CO., LTD

Inventor： Xiangyu Gao ,  Jingxiong Zhou ,  Guang Wang

IPC: G09G3/00

Abstract: A flexible display panel and a display device are provided. The flexible display panel has a bent edge area and a planar area. The bent edge area and the planar area are arranged in the row direction. A boundary extends in the column direction between each of the at least one bent edge area and the planar area. A side of the bent edge area that is away from the planar area is bent towards a non-light-exiting side of the flexible display panel, so that a portion of the flexible display panel that is located in the bent edge area forms a curved surface when the flexible display panel is in a bent state. A size of each column of sub-pixels located in the edge area in the row direction is larger than a size of each column of sub-pixels located in the planar area in the row direction.

公开(公告)号：US10957282B2

公开(公告)日：2021-03-23

申请号：US16457375

申请日：2019-06-28

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

Inventor： Yajun Hei ,  Jingxiong Zhou ,  Ruiyuan Zhou

IPC: G09G5/10 ,  G09G3/3208

Abstract: A luminance compensation method for a display panel includes: dividing the display area into at least two sub-display areas including a first sub-display area and a second sub-display area, where a density of luminance abnormal textures in the first sub-display area is smaller than that in the second sub-display area, a number of types of the luminance abnormal textures in the first sub-display area is less than that in the second sub-display area; dividing the first sub-display area into a plurality of first compensation units, dividing the second sub-display area into at least one second compensation unit, where a total number of pixel units in each first compensation unit is greater than that in each second compensation unit; obtaining a compensation coefficient of each compensation unit and forming a compensation coefficient table; performing luminance compensation for the display panel according to the compensation coefficient table.

公开(公告)号：US20200286447A1

公开(公告)日：2020-09-10

申请号：US16457375

申请日：2019-06-28

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

Inventor： Yajun Hei ,  Jingxiong Zhou ,  Ruiyuan Zhou

IPC: G09G5/10 ,  G09G3/3208

Abstract: Disclosed is a luminance compensation method for a display panel. The luminance compensation method includes: dividing the display area into at least two sub-display areas including a first sub-display area and a second sub-display area, a density of luminance abnormal textures in the first sub-display area is smaller than that in the second sub-display area, types of the luminance abnormal textures in the first sub-display area are less than that in the second sub-display area; dividing the first sub-display area into a plurality of first compensation units, dividing the second sub-display area into at least one second compensation unit, where a total number of pixel units in each first compensation unit is greater than that in each second compensation unit; obtaining a compensation coefficient of each compensation unit and forming a compensation coefficient table; performing luminance compensation for the display panel according to the compensation coefficient table.

公开(公告)号：US11482575B2

公开(公告)日：2022-10-25

申请号：US16916590

申请日：2020-06-30

Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH

Inventor： Jingxiong Zhou ,  Ruiyuan Zhou ,  Duzen Peng

IPC: H01L27/32

Abstract: Provided are a display panel and a display device. The display panel includes pixel unit groups arranged in a matrix, where a row direction of the matrix is a first direction; in a same pixel unit group, geometric centers of two first sub-pixels and geometric centers of two second sub-pixels form a first virtual parallelogram, where the first virtual parallelogram includes two first sides extending along the first direction and two second sides extending along a second direction, and the second direction intersects and is not perpendicular to the first direction; a geometric center of one third sub-pixel is located inside the first virtual parallelogram, the other three third sub-pixels are located outside the first virtual parallelogram, and geometric centers of the four third sub-pixels form a second virtual parallelogram, where the second virtual parallelogram includes two third sides extending along the first direction, and two fourth sides extending along the second direction.

公开(公告)号：US11087676B2

公开(公告)日：2021-08-10

申请号：US16849764

申请日：2020-04-15

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

Inventor： Xiangyu Gao ,  Guang Wang ,  Ruiyuan Zhou ,  Jingxiong Zhou

IPC: G09G3/3225

Abstract: A device and a method for obtaining brightness of a display panel are provided. The display panel includes a flat area and a curved area and the curved areas including at least one first curved area. The device includes a brightness acquisition component; an optical path adjustment component; and a control component. Principle light exited from the flat area is incident on a first area of a viewfinder plane of the brightness acquisition component; the optical path adjustment component is disposed on an optical path of principle light exited from the first curved area, and configured to adjust the principle light to be incident on a second area of the viewfinder plane; the first area does not overlap with and the second area; and the control component is configured to process an image captured by the brightness acquisition component to obtain the brightness of the display panel.

公开(公告)号：US11037523B2

公开(公告)日：2021-06-15

申请号：US16730902

申请日：2019-12-30

Applicant: WuHan TianMa Micro-electronics CO., LTD.

Inventor： Yajun Hei ,  Yang Huang ,  Jingxiong Zhou ,  Ruiyuan Zhou

IPC: G09G5/02

Abstract: A display method of a display panel is described. The display panel has a first display area and a second display area, first sub-pixels are located in the first display area and second sub-pixels are located in the second display area, and a sub-pixel density of the second display area is smaller than that of the first display area. The display method includes: in displaying one frame of image, performing display in the first display area and the second display area by using different display algorithms. A sub-pixel rendering is used to perform display in at least one of the first display area and the second display area. A number of data signals provided to the first display area and a number of the first sub-pixels are identical. A number of data signals provided to the second display area and a number of the second sub-pixels are identical.

公开(公告)号：US11018199B2

公开(公告)日：2021-05-25

申请号：US16734827

申请日：2020-01-06

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

Inventor： Yajun Hei ,  Jingxiong Zhou ,  Ruiyuan Zhou

IPC: H01L27/32 ,  G09G3/36 ,  G06T7/143

Abstract: Provided are a method for driving a display panel, a display driving device and an electronic device. The method includes: acquiring any one frame of picture to de displayed; dividing the any one frame of picture to be displayed into a first partition picture, a second partition picture and a third partition picture; displaying the first partition picture in the first display region, displaying the second partition picture in the second display region, and displaying the third partition picture in the third display region; where in a same frame of picture to be displayed, a density A1 of sub-pixels for displaying the first partition picture, a density A2 of sub-pixels for displaying the second partition picture and a density A3 of sub-pixels for displaying the third partition picture satisfy that A1

公开(公告)号：US10691243B2

公开(公告)日：2020-06-23

申请号：US16153841

申请日：2018-10-08

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

Inventor： Yajun Hei ,  Jingxiong Zhou ,  Ruiyuan Zhou

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  H01L51/50 ,  G06F1/16

Abstract: A flexible touch display panel and a method and a system for detecting a folding angle of the flexible touch display panel are provided. The method includes inputting a first scan signal to the touch electrode and obtaining a channel capacitance value of the touch electrode, determining whether the channel capacitance value is greater than a sleep threshold, controlling the flexible touch display panel to enter a sleep state in a case that the channel capacitance value is greater than the sleep threshold, and determining a capacitance value interval in which the channel capacitance value is located and determining a current folding angle of the flexible touch display panel based on a correspondence between the capacitance value interval and the folding angle in a case that the channel capacitance value is not greater than the sleep threshold.