公开(公告)号：US20240045530A1

公开(公告)日：2024-02-08

申请号：US17753637

申请日：2021-05-19

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Changzhi WU ,  Ying SUN ,  Yumin XU

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/04164

Abstract: The display panel includes at least one first touch area group and multiple touch wires; the at least one first touch area group includes two rows and N columns of touch electrodes; and each touch wire is electrically connected to a respective one touch electrode. The display panel further includes a first detection circuit and a second detection circuit; and each touch electrode is separately electrically connected to the first detection circuit and the second detection circuit by a respective one touch wire. The touch short-circuit detection stage includes a first detection stage. The detection method includes providing, at the first detection stage, a short-circuit detection signal for a touch electrode in the first touch electrode row by the first detection circuit; and determining, according to a short-circuit feedback signal generated by the second detection circuit, whether adjacent ones of the touch electrodes located in a same column are short-circuited.

公开(公告)号：US11882730B2

公开(公告)日：2024-01-23

申请号：US18151073

申请日：2023-01-06

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Jieliang Li ,  Jiaxian Liu

IPC: H10K59/121 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12

CPC classification number: H10K59/1216 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/1213 ,  G09G2320/0626 ,  H01L27/1225 ,  H01L27/1255

Abstract: Provided are a display panel and a display apparatus. The display panel includes a driving array layer having functional layers and insulation layers. The driving array layer includes a first transistor, a second transistor, a first capacitor including a first plate and a second plate, and a second capacitor including a third plate and a fourth plate. An active layer of the first transistor contains silicon, and an active layer of the second transistor contains oxide semiconductor. The first plate and the second plate are located in two of the functional layers, respectively, and the third plate and the fourth plate are located in two of the functional layers, respectively.

公开(公告)号：US11881155B2

公开(公告)日：2024-01-23

申请号：US17994526

申请日：2022-11-28

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Yong Yuan

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/045

Abstract: Provided are a display panel and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module and a compensation module. The drive module includes a drive transistor; the data write module is connected to an input terminal of the drive module, a first electrode of the compensation module is connected to an output terminal of the drive module, and a second electrode of the compensation module is connected to a control terminal of the drive module. The data write module includes a data write transistor and a bias transistor, the data write transistor is connected to a data signal input terminal and configured to transmit a data signal, and the bias transistor is connected to a bias signal input terminal and configured to transmit a bias signal.

公开(公告)号：US11843081B2

公开(公告)日：2023-12-12

申请号：US17348110

申请日：2021-06-15

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Jujian Fu ,  Gang Liu

IPC: H01L33/58 ,  H01L25/075 ,  H01L33/60

CPC classification number: H01L33/58 ,  H01L25/0753 ,  H01L33/60 ,  H01L2933/0058

Abstract: A display panel and a fabrication method, and a display device are provided. The display panel includes a substrate, and a plurality of sub-pixels disposed on the substrate. Each sub-pixel includes a light-emitting element and a light-shielding structure corresponding to the light-emitting element. The plurality of sub-pixels are divided into N types, wherein N is an integer greater than or equal to two. For light-emitting elements in sub-pixels of different types of the plurality of sub-pixels, light-shielding structures are disposed in different directions of corresponding light-emitting elements, and light-emitting directions of the sub-pixels of different types are different.

公开(公告)号：US20230378197A1

公开(公告)日：2023-11-23

申请号：US18229067

申请日：2023-08-01

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Shui HE ,  Ping AN ,  Yaqi KUANG

IPC: H01L27/12

CPC classification number: H01L27/1248 ,  H01L27/1225 ,  H01L27/1251

Abstract: Provided are a display panel and a display device. The display panel includes a base substrate; a first transistor and a second transistor and a third transistor, where the first transistor, the second transistor and the third transistor are formed on the base substrate, the first transistor includes a first active layer, a first gate, a first source, and a first drain, the first active layer contains silicon, the second transistor includes a second active layer, a second gate, a second source, and a second drain, and the second active layer contains an oxide semiconductor and is disposed on one side of the first active layer facing away from the base substrate; and a first insulating layer and a second insulating layer, where the first insulating layer is disposed on one side of the second active layer facing away from the base substrate and between the second gate and the second active layer.

公开(公告)号：US11823625B2

公开(公告)日：2023-11-21

申请号：US17417759

申请日：2020-06-24

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Hao Wu ,  Hao Wu ,  Poping Shen

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A shift register includes n shift register units which are cascaded. Each shift register unit includes a shift module and multiple enable modules. The shift module of an i-th-level shift register unit is configured to receive and latch a shift signal output by the shift module in an (i−1)-th-level shift register unit. The multiple enable modules of the i-th-level shift register unit are electrically connected to the shift module of the i-th-level shift register unit, and each of the multiple enable modules is configured to generate a gate driving signal according to the shift signal. n and i are positive integers, 1≤i≤n.

公开(公告)号：US20230290288A1

公开(公告)日：2023-09-14

申请号：US18198076

申请日：2023-05-16

Applicant: Xiamen Tianma Micro-Electronics Co.,Ltd.

Inventor： Qingjun LAI ,  Yihua ZHU ,  Yong YUAN ,  Ping AN ,  Zhaokeng CAO

IPC: G09G3/20 ,  G11C19/20

CPC classification number: G09G3/20 ,  G11C19/20 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/061

Abstract: A display panel includes a shift register, a pixel circuit, and a driving circuit. The shift register includes a first control unit, a second control unit, a third control unit, and a fourth control unit. The first control unit is configured to receive an input signal and control a signal of a first node in response to a first clock signal. The second control unit is configured to receive a first voltage signal and control a signal of a second node in response to the input signal and the first clock signal. The third control unit is configured to receive the first voltage signal and a second voltage signal and control a signal of a fourth node in response to the signal of the second node and a signal of a third node.

公开(公告)号：US11756467B2

公开(公告)日：2023-09-12

申请号：US17856568

申请日：2022-07-01

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Qingjun Lai ,  Yihua Zhu

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/043 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2310/0286

Abstract: A display panel and a display device are provided. The display panel includes a driving circuit. The driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. the display panel further includes a first voltage signal line, providing a first voltage signal for the driving circuit; a second voltage signal line, providing a second voltage signal for the driving circuit; a third voltage signal line, providing a third voltage signal for the driving circuit; and a fourth voltage signal line, providing a fourth voltage signal for the driving circuit. At least one of the third voltage signal line and the fourth voltage signal line is disposed on a side of at least one of the first voltage signal line and the second voltage signal line facing toward a display region of the display panel.

公开(公告)号：US11749689B2

公开(公告)日：2023-09-05

申请号：US17361243

申请日：2021-06-28

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Kui Li

IPC: H01L27/14 ,  H01L27/12 ,  G06F1/18 ,  G09G3/20 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: H01L27/124 ,  H01L27/1255 ,  G02F1/13685 ,  G02F1/136213 ,  G06F1/184 ,  G09G3/20 ,  G09G2300/0876

Abstract: Provided are an array substrate mother board, an array substrate, a display panel and a display device. The array substrate mother board includes array substrates, the array substrate includes a component disposing area; the array substrate includes a base substrate and a drive circuit layer, the drive circuit layer includes a first metal layer, and the first metal layer includes capacitor plates arranged in an array along the first direction and along the second direction; the plurality of array substrates include first-type array substrates, and the plurality of first-type array substrates are arranged along the first direction and are adjacent to a boundary extending along a first direction in the mother board of the array substrate.

公开(公告)号：US11747661B2

公开(公告)日：2023-09-05

申请号：US17673380

申请日：2022-02-16

Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.

Inventor： Wenqi Zhou ,  Yan Yang ,  Ting Zhou ,  Junyi Li

IPC: G02F1/13 ,  G02F1/1335

CPC classification number: G02F1/1323 ,  G02F1/133512 ,  G02F1/133514

Abstract: A display panel and a display apparatus are provided in the present disclosure. The display panel includes a plurality of pixel units. At least one pixel unit includes a display region and an anti-peep region. The anti-peep region includes a first light-blocking layer and a second light-blocking layer; and along a direction perpendicular to the light-exiting surface of the display panel, a distance between the first light-blocking layer and the second light-blocking layer is greater than zero. The first light-blocking layer includes at least one first light-blocking strip and at least one first opening. The second light-blocking layer includes at least one second light-blocking strip and at least one second opening. A vertical projection of a first or second opening on the light-exiting surface of the display panel is within a vertical projection of a corresponding first or second light-blocking strip on the light-exiting surface of the display panel.