公开(公告)号：US20240395209A1

公开(公告)日：2024-11-28

申请号：US18795909

申请日：2024-08-06

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Dipeng LI ,  Qi XIAO ,  Qiang CHEN ,  Ying SUN ,  Jingxiong ZHOU

IPC: G09G3/3233 ,  H10K59/131

Abstract: A driving process of the display panel includes a first stage, a display stage, and a second stage. The driving method of the display panel includes the following steps. A first voltage is started to be provided to the metal pattern at the first time in the first stage, where the first voltage is greater than 0. A first black-state voltage is started to be provided to the data line at the second time in the first stage. A second voltage is stopped to be provided to the metal pattern at the third time in the second stage, where the second voltage is greater than 0. A second black-state voltage is stopped to be provided to the data line at the fourth time in the second stage. The first time is before the second time, and/or the third time is after the fourth time.

公开(公告)号：US20240296773A1

公开(公告)日：2024-09-05

申请号：US18662469

申请日：2024-05-13

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Wang YU ,  Yang LIU ,  Jingxiong ZHOU

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0209 ,  G09G2320/0266

Abstract: A display panel compensation method includes: obtaining an initial data voltage value of each pixel in a display panel according to a to-be-displayed image; determining a to-be-compensated region of the display panel according to the initial data voltage value of each pixel in the display panel, where the to-be-compensated region includes a first to-be-compensated region and a second to-be-compensated region that are adjacent to each other in a first direction; and determining a first compensation voltage value of a first pixel in the first to-be-compensated region according to the difference between an initial data voltage value of the first pixel in the first to-be-compensated region and a first target voltage value, and determining a second compensation voltage value of a second pixel in the second to-be-compensated region according to the difference between an initial data voltage value of the second pixel in the second to-be-compensated region and a second target voltage value.

公开(公告)号：US20240296774A1

公开(公告)日：2024-09-05

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

CPC classification number: G09G3/2074 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2340/00

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：US20240233636A9

公开(公告)日：2024-07-11

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

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/045

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：US20240135874A1

公开(公告)日：2024-04-25

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

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/045

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：US20230145976A1

公开(公告)日：2023-05-11

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 ,  G09G2320/0242 ,  G09G2320/0233

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：US20240221574A1

公开(公告)日：2024-07-04

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

CPC classification number: G09G3/2007 ,  G09G3/2096 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2320/0686

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：US20240005870A1

公开(公告)日：2024-01-04

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 ,  G09G2330/021 ,  G09G2320/0247

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：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.