公开(公告)号：US12198598B2

公开(公告)日：2025-01-14

申请号：US18195206

申请日：2023-05-09

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Chen Zhong ,  Meng Lai ,  Qiang Chen ,  Jiajing Li ,  Jingxiong Zhou ,  Ying Sun ,  Liujing Fan ,  Zhiqiang Xia

IPC: G09G3/20

Abstract: A brightness adjustment method and a brightness adjustment device of a display panel and a display device are provided. The brightness adjustment method of the display panel including a plurality of sub-pixels includes acquiring grayscale data received by the display panel; performing a data processing process on the grayscale data and at least inserting a plurality of transitional grayscales between a 0-order grayscale and a 1st-order grayscale to form target grayscale data; and adjusting the brightness of the plurality of sub-pixels based on the target grayscale data.

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：US12008950B1

公开(公告)日：2024-06-11

申请号：US18121030

申请日：2023-03-14

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Chen Zhong ,  Meng Lai ,  Qiang Chen ,  Dipeng Li ,  Jingxiong Zhou ,  Zhiqiang Xia

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021

Abstract: The present application discloses a display panel and a display device. The display panel includes: a plurality of sub-pixels arranged in a plurality of rows and in a plurality of columns, wherein at least one column of the sub-pixels includes sub-pixels of at least two colors; gate drivers at least including a first gate driver and a second gate driver, wherein the first gate driver includes a plurality of first shift register units in a cascaded connection, the second gate driver includes a plurality of second shift register units in a cascaded connection, the first shift register units and the second shift register units are electrically connected to the sub-pixels in different rows, respectively, and color arrangements of the sub-pixels in adjacent pixel rows in response to a first gate driving signal output by a first gate driver are the same.

公开(公告)号：US11929005B2

公开(公告)日：2024-03-12

申请号：US18091796

申请日：2022-12-30

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qiang Chen ,  Chen Zhong ,  Meng Lai ,  Wang Yu ,  Jingxiong Zhou ,  Zhiqiang Xia

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0242

Abstract: Provided are a drive compensation method and system of a display panel and a display device. The drive compensation method includes: determining at least one of the impedance and capacitive reactance variation curve of a first signal line in a column direction and determining the charge rate variation curve of first pixel units in a row direction; determining the compensation coefficients for a respective pixel unit in the column direction and/or the row direction according to the impedance and capacitive reactance variation curve of the first signal line in the column direction and/or the charge rate variation curve of first pixel units in the row direction; and compensating the compensation coefficients for the respective pixel unit in the column direction and/or the row direction to the drive signal of the respective pixel unit to drive the respective pixel unit.

公开(公告)号：US12183243B2

公开(公告)日：2024-12-31

申请号：US18131719

申请日：2023-04-06

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Chen Zhong ,  Meng Lai ,  Qiang Chen ,  Jingxiong Zhou ,  Zhiqiang Xia ,  Wenlan Liu ,  Yinzeng Li ,  Ying Sun ,  Liujing Fan

IPC: G09G3/20 ,  G09G3/28 ,  G09G3/36

Abstract: A display panel control method, a display mode of the display panel including a normal display mode and a partial highlight display mode, the control method including obtaining display information of a display area in the display panel in the partial highlight display mode, the display information including a grayscale displayed corresponding to each pixel, and a number of pixels displaying the corresponding grayscale; determining a target gamma curve based on the display information, a difference between a display brightness corresponding to the grayscale in the target gamma curve and a target display brightness required for the pixels to display the corresponding grayscale in the partial highlight display mode being within a predetermined range; and controlling the pixels in the display area to display based on the target gamma curve.

公开(公告)号：US12057073B2

公开(公告)日：2024-08-06

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 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/0247

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.

公开(公告)号：US11922885B2

公开(公告)日：2024-03-05

申请号：US17954361

申请日：2022-09-28

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Shimeng Lv ,  Jingxiong Zhou ,  Wang Yu ,  Zuoyang Wu

IPC: G09G3/3266 ,  G09G3/3233 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G11C19/28 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021

Abstract: The present application discloses a display panel, a display driving method for display panel, and a display apparatus. The display panel includes a plurality of rows of pixel circuits; a gate drive circuit configured to be switched between a first drive mode and a second drive mode, wherein the first drive mode comprises that the gate drive circuit provides gate signals to n rows of the pixel circuits simultaneously, and the second drive mode comprises that the gate drive circuit provides gate signals to m*n rows of the pixel circuits simultaneously, wherein n is a positive integer, and m is an integer greater than or equal to 2.

公开(公告)号：US12249280B2

公开(公告)日：2025-03-11

申请号：US18096033

申请日：2023-01-12

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingyue Zhang ,  Xiaoyong Liu ,  Zhida Zhu ,  Jingxiong Zhou ,  Zhiqiang Xia

IPC: G09G3/3233

Abstract: The present application discloses a display panel and a display device. The display panel comprises pixel circuits, collecting modules and feedback modules, and the pixel circuit comprises a driving module, a data writing module and a light-emitting module; wherein the data writing module is configured to transmit a voltage output by a data signal terminal to the driving module; the driving module and the light-emitting module are electrically connected between a first power supply terminal and a second power supply terminal, and the driving module is configured to generate a driving current according to the voltage from the data signal terminal and a voltage from the first power supply terminal to drive the light-emitting module to emit light; the collecting module is configured to collect at least one of a voltage actually received by the driving module and a voltage actually received by the driving module.

公开(公告)号：US20240221611A1

公开(公告)日：2024-07-04

申请号：US18121030

申请日：2023-03-14

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Chen ZHONG ,  Meng LAI ,  Qiang CHEN ,  Dipeng LI ,  Jingxiong Zhou ,  Zhiqiang XIA

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021

Abstract: The present application discloses a display panel and a display device. The display panel includes: a plurality of sub-pixels arranged in a plurality of rows and in a plurality of columns, wherein at least one column of the sub-pixels includes sub-pixels of at least two colors; gate drivers at least including a first gate driver and a second gate driver, wherein the first gate driver includes a plurality of first shift register units in a cascaded connection, the second gate driver includes a plurality of second shift register units in a cascaded connection, the first shift register units and the second shift register units are electrically connected to the sub-pixels in different rows, respectively, and color arrangements of the sub-pixels in adjacent pixel rows in response to a first gate driving signal output by a first gate driver are the same.