公开(公告)号：US20240161671A1

公开(公告)日：2024-05-16

申请号：US18414721

申请日：2024-01-17

Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Inventor： Chenguang SUN ,  Xingyao ZHOU ,  Yana GAO ,  Shuai YANG ,  Mengmeng ZHANG ,  Jian KUANG

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2330/021 ,  G09G2360/16

Abstract: The method includes, in a low-frequency driving mode where a keeping phase is arranged between two active phases, providing a light-emitting control signal with a duty cycle of a % to a pixel circuit during the active phase; and performing first and second switches on the light-emitting control signal during the keeping phase. The first switch is performed before the second switch. Panel brightness at the first switch is higher than panel brightness at the second switch. The duty cycle of the light-emitting control signal is b % after the second switch. b>a. A total duration of active levels of the light-emitting control signal within one frame after the first switch is between a total duration of active levels of the light-emitting control signal with the duty cycle of a % and a total duration of active levels of the light-emitting control signal with the duty cycle of b % within one frame.

公开(公告)号：US20230368721A1

公开(公告)日：2023-11-16

申请号：US18355585

申请日：2023-07-20

Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Inventor： Zhe ZHAO ,  Yana GAO ,  Xingyao ZHOU ,  Mengmeng ZHANG ,  Zhi LIU ,  Shuai YANG ,  Chenguang SUN

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0275 ,  G09G2310/0267 ,  G09G2300/0452

Abstract: The display panel includes pixel groups including multiple sub-pixels; and driving signal lines. One driving signal line corresponds to at least one pixel group of the pixel groups, and multiple driving signal lines sequentially output a charging enabling level to drive corresponding pixel groups. The sub-pixel includes a first color sub-pixel that includes a first sub-pixel and a second sub-pixel. The first and second sub-pixels are arranged along an arrangement direction of the pixel group, and the second sub-pixel and the first sub-pixel are spaced by other first color sub-pixels whose number is not greater than a preset number. In a first mode, the display panel receives a noise signal, and a phase difference between charging enabling levels provided by the driving signal lines corresponding to the first sub-pixel and the second sub-pixel is non-integer times a noise cycle.

公开(公告)号：US20200126470A1

公开(公告)日：2020-04-23

申请号：US16257105

申请日：2019-01-25

Applicant: WuHan TianMa Micro-Electronics Co., Ltd.

Inventor： Yana GAO ,  Xinzhao LIU ,  Yue LI ,  Xingyao ZHOU ,  Kaihong HUANG

IPC: G09G3/20

Abstract: The present disclosure provides a display panel including: gate lines; data lines insulated from and intersecting with gate lines; pixel units; first and second clock signal lines; first and second power signal lines; gate driving units; and virtual driving units. Each gate driving unit has an output terminal electrically connected to gate lines, a first clock signal input terminal electrically connected to first clock signal line, and a second clock signal input terminal electrically connected to second clock signal line. Each virtual driving unit has an output terminal insulated from gate lines, a first clock signal input terminal insulated from first and second clock signal lines, and a second clock signal input terminal insulated from first and second clock signal lines. At least one virtual driving unit is disposed within the rounded angle region and located between two gate driving units.

公开(公告)号：US20190157375A1

公开(公告)日：2019-05-23

申请号：US16255821

申请日：2019-01-24

Applicant: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.

Inventor： Yujiao LIANG ,  Mengmeng ZHANG ,  Di ZHU ,  Tao PENG ,  Yue LI ,  Yana GAO ,  Xingyao ZHOU

IPC: H01L27/32 ,  H01L51/52

Abstract: A display panel is provided having a transparent region, a display area surrounding the transparent region, and a non-display area surrounding the display area, and the display panel includes: at least one binding pin; at least one signal line only located within the display area and not located within the transparent region; at least one connection line located within the non-display region; and glass cement located within the non-display region. The signal lines include a first signal line and a second signal line, and the first signal line and the at least one binding pin are respectively located at two sides of the transparent region; the first signal line is electrically connected to the at least one connection line; and at least a part of the at least one connection line overlaps with the glass cement. The display panel is used for image display.