公开(公告)号：US12087247B2

公开(公告)日：2024-09-10

申请号：US18110904

申请日：2023-02-17

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

Inventor： Huomei Hua ,  Rong Chen ,  Guochang Lai

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3677 ,  G09G2310/0272 ,  G09G2310/0278

Abstract: A driving method includes driving a display panel at a first-frequency driving mode and a second-frequency driving mode. A first frequency of the first-frequency driving mode is lower than a second frequency of the second-frequency driving mode. In the first-frequency driving mode, a frame time includes a scanning section and a corresponding front and rear porch section immediately following the scanning section. The driving method further includes scanning sub-pixels of the display panel in the scanning section of the first-frequency driving mode, where in the front and rear porch section, the sub-pixels of the display panel are not scanned, and front and rear porch sections corresponding to at least part of a plurality of frames in the first-frequency driving mode include at least one compensation section. The method further includes providing a data signal to each data line of a plurality of data lines of the display panel in a compensation section of the at least one compensation section.

公开(公告)号：US11631378B2

公开(公告)日：2023-04-18

申请号：US17201634

申请日：2021-03-15

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

Inventor： Huomei Hua ,  Rong Chen ,  Guochang Lai

IPC: G09G3/36

Abstract: Driving method of display panel, display panel, and display device are provided. The driving method includes a first-frequency driving mode and a second-frequency driving mode. A first frequency of the first-frequency driving mode is lower than a second frequency of the second-frequency driving mode. In the first-frequency driving mode, a frame time includes a scanning section and a front and rear porch section, and the scanning section and the front and rear porch section are operated in sequence. In the scanning section, sub-pixels of the display panel are scanned, and in the front and rear porch section, the sub-pixels of the display panel are not scanned. The display panel includes data lines. The front and rear porch section corresponding to at least part of a plurality of frames includes at least one compensation section. In a compensation section, a data signal is provided to each data line.

公开(公告)号：US10897819B2

公开(公告)日：2021-01-19

申请号：US16561534

申请日：2019-09-05

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

Inventor： Huangyao Wu ,  Shumao Wu ,  Guochang Lai

IPC: H05K1/11 ,  H01L23/498 ,  H01L27/12 ,  H05K1/14 ,  H05K3/36

Abstract: A display panel, a flexible circuit board and a display device are provided. The display panel includes a substrate, and at least one row of a plurality of input pads including at least one first-input pad disposed in the middle of the input pads and a plurality of second-input pads disposed on both sides of the first input pad. Each input pad includes a first end and a second end that are oppositely disposed, and a spacing between any adjacent two input pads includes a first spacing between adjacent two first ends and a second spacing between adjacent two second ends. The first spacing and the second spacing between any adjacent two second-input pads are not equal. Along a direction from the first-input pad to the second-input pad, starting from adjacent first-input and second-input pads, the first spacing and the second spacing successively and gradually increases, respectively.

公开(公告)号：US10373986B2

公开(公告)日：2019-08-06

申请号：US15893699

申请日：2018-02-12

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

Inventor： Guochang Lai ,  Junyi Li ,  Zhongjie Zhang

IPC: H01L27/14 ,  H01L27/12 ,  G02F1/1345 ,  H01L27/32 ,  G02F1/1333

Abstract: An array substrate, a display panel and a display device, including at least two gate lines in a display area, a gate driving circuit and at least two gate fan-out lines in a non-display are described. One end of each of the gate fan-out lines are electrically connected with one signal output of the gate driving circuit and the other end of each of the gate fan-out lines are electrically connected with the gate lines. By configuring a first gate fan-out line of the gate fan-out lines and the gate driving circuit to have an overlapping area outside a mutual connection area, an area where the gate fan-out lines are overlaps the gate driving circuit, space occupied by the first gate fan-out line outside the gate driving circuit is decreased to shorten a distance between the gate driving circuit and the display area.

公开(公告)号：US10115664B2

公开(公告)日：2018-10-30

申请号：US15823133

申请日：2017-11-27

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

Inventor： Guochang Lai ,  Hongbo Zhou

IPC: H01L23/498 ,  G02F1/1333 ,  H05K1/03 ,  H01L23/00 ,  H05K1/11 ,  H05K1/02 ,  G02F1/1345 ,  H05K3/00 ,  H05K1/18 ,  H01L23/495 ,  H01L23/538 ,  H05K3/32

Abstract: A display panel and a display device are provided. The display panel comprises a first substrate having a step area; a second substrate disposed opposite to the first substrate, wherein the second substrate has a first surface facing the first substrate and an opposite second surface; a Chip On Flex (COF) disposed on the step area of the first substrate and comprising at least one ground pad, wherein the COF has a first surface facing the first substrate and an opposite second surface, and the at least one ground pad is disposed on the second surface of the COF; a conductive layer disposed on the second surface of the second substrate; and a conductive adhesive electrically connected to the conductive layer and the at least one ground pad.

公开(公告)号：US11488561B2

公开(公告)日：2022-11-01

申请号：US17006665

申请日：2020-08-28

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

Inventor： Yahui Xie ,  Guochang Lai ,  Zhijie Wang ,  Jian Liu

IPC: G09G3/36

Abstract: Provided are a demultiplexer circuit, an array substrate, a display panel and device, and a driving method. The demultiplexer circuit includes multiple demultiplexers, each demultiplexer includes at least two switching transistor groups, and each switching transistor group includes at least two switching transistors. Sources of the at least two switching transistors in a same switching transistor group are electrically connected to each other, drains of the at least two switching transistors in the same switching transistor group are electrically connected to each other. Input ends of the at least two switching transistor groups in a same demultiplexer are electrically connected to each other. In the same switching transistor group, the common source is electrically connected to the input end, the common drain is electrically connected to the output end, and at least two control ends are electrically connected to gates of the switching transistors in a one-to-one correspondence.

公开(公告)号：US11443684B2

公开(公告)日：2022-09-13

申请号：US17006755

申请日：2020-08-28

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

Inventor： Donghua Li ,  Xiaoli Wei ,  Guochang Lai ,  Junyi Li

IPC: G09G3/36 ,  G09G3/20 ,  G11C19/28

Abstract: Provided are a shift register, a gate drive circuit, a display panel and a driving method. The shift register includes a first output module, a second output module, a first node, a second node, a first power supply signal terminal, a first clock signal terminal and a scan output terminal. The first output module and the second output module are electrically connected to the scan output terminal. The first output module is further electrically connected to the first power supply signal terminal and the first node. The first node is configured to control a conduction state of the first output module. The second output module is further electrically connected to the first clock signal terminal and the second node. The second node is configured to control a conduction state of the second output module. There is no capacitor in the first output module and/or the second output module.

公开(公告)号：US20210398466A1

公开(公告)日：2021-12-23

申请号：US17381740

申请日：2021-07-21

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

Inventor： Mengzi Zhang ,  Fan Guo ,  Junjun Gan ,  Huangyao Wu ,  Shumao Wu ,  Guochang Lai ,  Xiufeng Zhou

IPC: G09G3/14

Abstract: Provided are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area, the display area includes a first rectangular area and a first special-shaped area disposed adjacent to the first rectangular area, and the non-display area includes a second rectangular area adjacent to the first rectangular area and a second special-shaped area adjacent to the first special-shaped area. The display area includes pixel units arranged in an array, and a plurality of shift registers are disposed in the second rectangular area and the second special-shaped area, where each of the plurality of shift registers is connected to a row of pixel units. The second special-shaped area includes a laser cutting affected area, where none of the plurality of shift registers is disposed in at least part of the laser cutting affected area.

公开(公告)号：US11100832B2

公开(公告)日：2021-08-24

申请号：US16589644

申请日：2019-10-01

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

Inventor： Mengzi Zhang ,  Fan Guo ,  Junjun Gan ,  Huangyao Wu ,  Shumao Wu ,  Guochang Lai ,  Xiufeng Zhou

IPC: G09G3/14

Abstract: Provided are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area, the display area includes a first rectangular area and a first special-shaped area disposed adjacent to the first rectangular area, and the non-display area includes a second rectangular area adjacent to the first rectangular area and a second special-shaped area adjacent to the first special-shaped area. The display area includes pixel units arranged in an array, and a plurality of shift registers are disposed in the second rectangular area and the second special-shaped area, where each of the plurality of shift registers is connected to a row of pixel units. The second special-shaped area includes a laser cutting affected area, where none of the plurality of shift registers is disposed in at least part of the laser cutting affected area.

公开(公告)号：US10580803B2

公开(公告)日：2020-03-03

申请号：US16163586

申请日：2018-10-18

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

Inventor： Liangliang Bei ,  Huangyao Wu ,  Xuexin Lan ,  Hongbo Zhou ,  Yihua Zhu ,  Guochang Lai ,  Guozhao Chen

IPC: H01L27/12 ,  G09G3/20 ,  G09G3/36

Abstract: An array substrate and a display panel are provided. The array substrate includes a non-display area and a display area. The non-display area includes a first non-display area and a second non-display area, and the display area includes a normal display area and a wiring area. The normal display area is surrounded by the first non-display area, the wiring area is surrounded by the normal display area, and the second non-display area is surrounded by the wiring area. The second non-display area comprises an opening area. In the solution, since the number of data lead lines in the same layer in the wiring area is reduced, a line distance between adjacent data lead lines is increased, thereby reducing coupling capacitance between adjacent data lead lines arranged in the same layer.