公开(公告)号：US20180158417A1

公开(公告)日：2018-06-07

申请号：US15889164

申请日：2018-02-05

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

Inventor： Dongxu XIANG ,  Renyuan ZHU ,  Yue LI ,  Yana GAO ,  Xingyao ZHOU ,  Zhonglan CAI

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0233

Abstract: Disclosed are a display panel and a display device. When a display area is divided into a first display area and a second display area, and the number of pixels in a row of pixels in the second display area is smaller than the number of pixels in a row of pixels in the first display area, a load on a scan signal line connected with a row of pixels in the second display area is lower than a load on a scan signal line connected with a row of pixels in the first display area, and at least one of the respective scan signal lines connected with the respective rows of pixels in the second display area is connected with a compensation capacitor.

公开(公告)号：US20230418405A1

公开(公告)日：2023-12-28

申请号：US17958168

申请日：2022-09-30

Applicant: Wuhan Tianma Micro-Electronics Co, Ltd. ,  Wuhan Tianma MicroElectronics Co, Ltd. Shanghai Branch

Inventor： Qibing WEI ,  Peng ZHANG ,  Xingyao ZHOU ,  Wei LIU

IPC: G06F3/044

CPC classification number: G06F3/044

Abstract: Display panel and display device are provided. The display panel includes an array substrate and a cover plate disposed opposite to the array substrate, touch electrode layers on a side of the cover plate facing the array substrate, and a plurality of first touch pads and a plurality of second touch pads disposed opposite to the plurality of the first touch pads. Each of the array substrate and the cover plate include a display area and a non-display area at least partially surrounding the display area. The non-display area of the array substrate includes a step area provided with bonding pads. The non-display area of the array substrate includes at least one irregularly-shaped area adjacent to the step area. A first touch pad is electrically connected to a second touch pad.

公开(公告)号：US20230098040A1

公开(公告)日：2023-03-30

申请号：US18077849

申请日：2022-12-08

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

Inventor： Xingyao ZHOU ,  Yana GAO ,  Kang YANG ,  Wei LIU ,  Qijun YAO

IPC: G09G3/32

Abstract: A display panel has a non-display area and a display area including first and second display areas. The display panel includes pixel circuits located in the display area, and driving circuits located in the non-display area. Each pixel circuit includes a driving transistor and a first transistor electrically connected to a gate of the driving transistor. The pixel circuits include first pixel circuits electrically connected to pixels located in the first display area and second pixel circuits electrically connected to pixels located in the second display area. A gate of the first transistor in the first pixel circuit and a gate of the first transistor in the second pixel circuit are coupled to different driving circuits.

公开(公告)号：US20220310016A1

公开(公告)日：2022-09-29

申请号：US17405643

申请日：2021-08-18

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Inventor： Shuai YANG ,  Xingyao ZHOU ,  Yue LI ,  Mengmeng ZHANG

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel driving circuit, a driving method, a display panel and a display device are provided. The pixel driving circuit include a driving module, configured to drive a light-emitting element to emit light, wherein a control terminal of the driving module is electrically connected to a first node, and a first terminal is electrically connected to a second node; a data writing module, configured to write data signals, wherein a control terminal of the data writing module is electrically connected with a first scan signal line, and a first terminal is electrically connected with a data signal terminal; and a coupling module, configured to couple the data signals to the first terminal of the driving module, wherein a first terminal of the coupling module is electrically connected to a second terminal of the data writing module, and a second terminal is electrically connected to the second node.

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：US20230141363A1

公开(公告)日：2023-05-11

申请号：US17587884

申请日：2022-01-28

Applicant: Wuhan Tianma Micro-Electronics Co., Ltd. ,  Wuhan Tianma MicroElectronics Co., Ltd. Shanghai Branch

Inventor： Yue LI ,  Xingyao ZHOU ,  Zhuan GAO ,  Qingxia WANG ,  Yuantao WU

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52

CPC classification number: H01L27/3276 ,  H01L51/0096 ,  H01L51/5253

Abstract: Display panel and display device are provided. The display panel includes a display area and a non-display area surrounding the display area. The display area includes a plurality of scan lines extending in a first direction and a plurality of data lines extending in a second direction, the first direction intersects the second direction. The non-display area includes a bonding area. The bonding area includes a plurality of pads arranged in a third direction. A direction perpendicular to the third direction is a fourth direction. An angle formed by the second direction and the fourth direction is θ, and 0°

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.