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：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.

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：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：US20240339062A1

公开(公告)日：2024-10-10

申请号：US18748135

申请日：2024-06-20

Applicant: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.

Inventor： Runtao JIA ,  Ying SUN ,  Qiang CHEN ,  Weixing LIU ,  Yu ZHENG ,  Xianyun HOU

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/04 ,  G09G2320/02 ,  G09G2320/0613 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2354/00

Abstract: A method and an apparatus for driving a display panel, and a display driver integrated circuit chip are provided. The method includes: determining an order in which display divisions on the display panel are to be driven, when determined not to update respective refresh rates of the display divisions; determining electric signal gear ranges for the display divisions based on the refresh rates of the display divisions, respectively; and driving the display divisions sequentially in the determined order and based on the determined gear ranges. With this method, the power consumption can be reduced while the display effect is improved.

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.