公开(公告)号：US20210383743A1

公开(公告)日：2021-12-09

申请号：US17405993

申请日：2021-08-18

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

Inventor： Yong Yuan

IPC: G09G3/32

Abstract: Provided are a display panel, a driving method thereof 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 data write module is configured to selectively provide a data signal for the drive module. The drive module is configured to provide a drive current for the light-emitting element and includes a drive transistor. The compensation module is configured to compensate for the threshold voltage of the drive transistor. The operation of the pixel circuit includes a bias stage. During the bias stage, the data write module and the drive module are on, the compensation module is off, and the data signal is written to the drain of the drive transistor to adjust the bias state of the drive transistor.

公开(公告)号：US12175922B2

公开(公告)日：2024-12-24

申请号：US17994572

申请日：2022-11-28

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

Inventor： Yong Yuan

IPC: G09G3/32

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：US12096656B2

公开(公告)日：2024-09-17

申请号：US17402610

申请日：2021-08-15

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

Inventor： Yong Yuan

IPC: H01L27/12 ,  H01L51/56 ,  H10K59/121 ,  H10K59/126 ,  H10K71/00 ,  H01L29/66 ,  H01L29/786 ,  H10K59/12

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/126 ,  H10K71/00 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/127 ,  H01L29/66757 ,  H01L29/66969 ,  H01L29/78633 ,  H01L29/78675 ,  H01L29/7869 ,  H10K59/1201

Abstract: Provided are an array substrate, a manufacturing method thereof, and a display panel. The array substrate includes: a substrate, a first active layer of a first thin film transistor, a first insulating layer, a first metal layer, and a second active layer of a second thin film transistor. The first metal layer includes a first connection portion, which overlaps one of a source contact region or a drain contact region of the first active layer and overlaps one of a source contact region or a drain contact region of the second active layer. The one of the source contact region or the drain contact region of the first active layer and the one of the source contact region or the drain contact region of the second active layer overlap each other, and are electrically connected through a via in the first insulating layer and the first connection portion.

公开(公告)号：US11887533B2

公开(公告)日：2024-01-30

申请号：US17994640

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 an integrate chip and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a drive module and a data write module. The drive module is configured to provide a drive current for the light-emitting element and comprises a drive transistor. The data write module comprises a data write transistor and a bias transistor, the data write transistor is configured to transmit a data signal and the bias transistor is configured to transmit a bias signal.

公开(公告)号：US11721268B2

公开(公告)日：2023-08-08

申请号：US17528165

申请日：2021-11-16

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

Inventor： Qingjun Lai ,  Yihua Zhu ,  Yong Yuan

IPC: G09G3/32 ,  G09G3/20 ,  G11C19/28 ,  G09G3/3266 ,  G09G3/36

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3674 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28

Abstract: Provided are a display panel and a display device. The display panel includes a driver circuit including N stages of cascaded shift registers, where N≥2. Each shift register includes a first control part and a second control part. The second control part includes a first control unit and a second control unit. The first control unit is configured to receive a signal of a preset node and a first output control signal and control a signal of a fourth node, where the preset node is one of a second node or a third node. A first output control signal received by a shift register at an M1-th stage is a signal of the preset node of a shift register at an M2-th stage, where 1≤M1≤N, 1≤M2≤N, 1≤|M1−M2|≤i, and 2≤i≤N−1.

公开(公告)号：US11620931B2

公开(公告)日：2023-04-04

申请号：US17644627

申请日：2021-12-16

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

Inventor： Qingjun Lai ,  Yihua Zhu ,  Yong Yuan ,  Ping An ,  Zhaokeng Cao

IPC: G09G3/20

Abstract: An inverter, a method for driving an inverter, a driving circuit and a display panel are provided. An inverter includes a first module; a second module; an initial signal input terminal; and a first level signal input terminal. The first module includes a first transistor, a second transistor, and a third transistor; control terminals of the first transistor and the second transistor are both electrically connected to the initial signal input terminal; a first terminal of the third transistor is electrically connected to the first level signal input terminal; a first terminal of the second transistor is electrically connected to a first terminal of the second transistor; a second terminal of the second transistor is electrically connected to a control terminal of the third transistor; the first module includes a leakage current control component at least electrically connected with the second terminal of the first transistor.

公开(公告)号：US11605344B2

公开(公告)日：2023-03-14

申请号：US17529594

申请日：2021-11-18

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

Inventor： Yong Yuan ,  Nana Xiong ,  Jujian Fu

IPC: G09G3/32 ,  G09G3/3233

Abstract: A display panel and a driving method thereof, and a display device are provided. The display panel includes pixel circuits. Each pixel circuit includes a driving transistor, a data writing circuit, a light-emitting control circuit, a threshold compensation circuit and a bias adjustment circuit. The driving transistor includes a gate electrically connected to a first node, a first terminal electrically connected to a second node, and a second terminal electrically connected to the third node, and is configured to generate a driving current. The third node is connected to a light-emitting element through the light-emitting control circuit. The bias adjustment circuit is configured to provide a signal of a bias adjustment signal terminal to the second node under control of a signal of a first scanning signal terminal in such a manner that a bias state of the driving transistor is adjusted.

公开(公告)号：US11568781B2

公开(公告)日：2023-01-31

申请号：US17643557

申请日：2021-12-09

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

Inventor： Qingjun Lai ,  Yihua Zhu ,  Yong Yuan ,  Ping An ,  Zhaokeng Cao

IPC: G09G3/20 ,  G11C19/28

Abstract: A display panel and a display device are provided. The display panel includes a driving circuit. The driving circuit includes N levels of shift registers cascaded with each other, where N 2. A shift register of the N levels of shift registers includes: a first control unit, configured to receive an input signal and control a signal of a first node in response to a first clock signal; a second control unit, configured to receive a first voltage signal and a second voltage signal, and control a signal of a second node in response to the signal of the first node, the first clock signal, and a second clock signal; and a third control unit, configured to receive the first voltage signal and the second voltage signal, and control an output signal in response to the signal of the second node and a signal of the third node.

公开(公告)号：US20220208792A1

公开(公告)日：2022-06-30

申请号：US17451136

申请日：2021-10-15

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

Inventor： Qingjun Lai ,  Yihua Zhu ,  Yong Yuan ,  Ping An ,  Zhaokeng Cao

IPC: H01L27/12

Abstract: A display panel and a display device are provided. The display panel includes at least one driving circuit and at least one pixel circuit. A driving circuit provides a driving signal for a pixel circuit. The driving circuit includes N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register includes at least one first active layer, and an active layer with a largest area is a first preset active layer. The pixel circuit includes at least one second active layer, where an active layer with a largest area among active layers containing silicon is a second preset active layer, and an active layer with a largest area among active layers containing oxide semiconductor is a third preset active layer. The first preset active layer has an area greater than the second preset active layer and the third preset active layer.

公开(公告)号：US11373590B2

公开(公告)日：2022-06-28

申请号：US17467994

申请日：2021-09-07

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

Inventor： Yong Yuan ,  Jieliang Li

IPC: G09G3/32 ,  G09G3/3233

Abstract: Provided are a display panel, a driving method thereof, and a display device. The display panel includes a pixel circuit and a light-emitting element; where the pixel circuit includes a drive module, a data writing module, a light emission control module, and a bias module; where the drive module is configured to provide the light-emitting element with a drive current and includes a drive transistor; the data writing module is connected to a source of the drive transistor and configured to selectively provide the drive module with a data signal; the light emission control module is configured to selectively allow the light-emitting element to enter a light-emitting stage; the bias module is connected between a drain of the drive transistor and the light emission control signal line.