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：US20240233640A9

公开(公告)日：2024-07-11

申请号：US18399811

申请日：2023-12-29

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Weixing LIU ,  Ying SUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2340/0435

Abstract: Provided are a display panel, a driving method of a display panel, and a display device. The display panel includes a first display region and a second display region. A working process of the display panel includes a first mode. In the first mode, a data refresh rate of the first display region is F11, a data refresh rate of the second display region is F21, and F11≠F21. In the first mode, a driving parameter of the first display region is different from a driving parameter of the second display region, the driving parameter of the first display region is used for controlling brightness of the first display region, and the driving parameter of the second display region is used for controlling brightness of the second display region.

公开(公告)号：US20240135877A1

公开(公告)日：2024-04-25

申请号：US18399811

申请日：2023-12-29

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Weixing LIU ,  Ying SUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2340/0435

Abstract: Provided are a display panel, a driving method of a display panel, and a display device. The display panel includes a first display region and a second display region. A working process of the display panel includes a first mode. In the first mode, a data refresh rate of the first display region is F11, a data refresh rate of the second display region is F21, and F11≠F21. In the first mode, a driving parameter of the first display region is different from a driving parameter of the second display region, the driving parameter of the first display region is used for controlling brightness of the first display region, and the driving parameter of the second display region is used for controlling brightness of the second display region.

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：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：US20240071303A1

公开(公告)日：2024-02-29

申请号：US18098587

申请日：2023-01-18

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Yantao HUANG ,  Ying SUN

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/045 ,  G09G2330/021

Abstract: A display panel that includes a pixel circuit including a plurality of refresh modes, and at least two refresh modes for the pixel circuit to be at different refresh frequencies, different reset signals corresponding to different reset signals.

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：US20240346996A1

公开(公告)日：2024-10-17

申请号：US18757540

申请日：2024-06-28

Applicant: XIAMEN TIANMA DISPLAY TECHNOLOGY CO., LTD.

Inventor： Di YANG ,  Ying SUN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A display panel and a display device are provided. The display panel includes a first display area, a second display area and a pixel circuit. The pixel circuit includes a first pixel circuit and a second pixel circuit. The first pixel circuit is connected to a light emitting element in the first display area. The second pixel circuit is connected to a light emitting element in the second display area. The pixel circuit operates in a first mode and a second mode. In the first mode, the first display area corresponds to a refresh rate of F11, and the second display area corresponds to a refresh rate of F12. In the second mode, the first display area corresponds to a refresh rate of F21, and the second display area corresponds to a refresh rate of F22. There is a relationship of |F21−F11|≠|F22−F12|.