公开(公告)号：US20230080838A1

公开(公告)日：2023-03-16

申请号：US17646626

申请日：2021-12-30

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Jinjin YANG ,  Qingjun LAI ,  Yihua ZHU

IPC: H01L27/32

Abstract: Display panel and display device are provided. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a driving transistor and an initialization transistor. The initialization transistor is configured to provide an initialization signal for a preset node. The preset node is a gate of the driving transistor, or an anode of the light-emitting element. The pixel circuit includes an oxide semiconductor transistor and a silicon transistor. An active layer of the oxide semiconductor transistor includes an oxide semiconductor, and an active layer of the silicon transistor includes silicon. The pixel circuit includes a first pixel circuit and a second pixel circuit. The first pixel circuit includes a first initialization transistor. The second pixel circuit includes a second initialization transistor. An active layer of the first initialization transistor is connected to an active layer of the second initialization transistor through a first connection wire.

公开(公告)号：US20230134599A1

公开(公告)日：2023-05-04

申请号：US18089341

申请日：2022-12-27

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI ,  Jinjin YANG ,  Yihua ZHU

IPC: H01L27/12

Abstract: Provided are a display panel and a display device. The display panel includes a display region and a non-display region. The display panel further includes multiple data lines, multiple connection wires and multiple signal wires. The multiple connection wires are electrically connected to the multiple data lines and the multiple signal wires respectively, the multiple data lines and the multiple connection wires are located in the display region, and the multiple signal wires are located in the non-display region. The multiple connection wires include a first connection wire group and a second connection wire group. The first connection wire group includes multiple first connection wires, the second connection wire group includes multiple second connection wires, the first connection wire group and the second connection wire group are located on two sides of a first central axis of the display panel respectively.

公开(公告)号：US20240355289A1

公开(公告)日：2024-10-24

申请号：US18759707

申请日：2024-06-28

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI ,  Jinjin YANG

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A display panel and a display device are provided. A compensation module of a pixel circuit of a display panel is on in a bias adjustment stage, a data write stage, and a time period between the bias adjustment stage and the data write stage; and/or, a reset module of the pixel circuit is on in the bias adjustment stage and a reset stage and is turned off at least after the compensation module is turned on.

公开(公告)号：US20240395218A1

公开(公告)日：2024-11-28

申请号：US18795787

申请日：2024-08-06

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Cheng HU ,  Qingjun LAI

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

Abstract: Provided are a display panel and a display device which belong to the field of display technology. The display panel includes a driver circuit including a shift register, where the shift register includes an input circuit connected to at least an input signal terminal, a first clock signal line, and a first node; a control circuit connected to at least a first voltage signal line, a second voltage signal line, the first node, a second node, and a third node, where the first node and the third node are directly connected or connected through a first adjustment circuit; and an output circuit including a first output circuit and a second output circuit, where the first output circuit is connected to at least the first voltage signal line, the third node, and an output signal terminal.

公开(公告)号：US20240379043A1

公开(公告)日：2024-11-14

申请号：US18783337

申请日：2024-07-24

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI ,  Chengxu LI

IPC: G09G3/20 ,  G11C19/28

Abstract: Provided are a display panel and a display device. The display panel includes a drive circuit including cascaded N stage shift registers. A shift register includes a control unit, an initial output unit and a first output unit. The control unit is configured to at least receive an input signal and control a signal of the first output node and a signal of the second output node. The initial output unit is configured to at least receive a signal of the first output node and a signal of the second output node, and control an initial output signal; the initial output signal of an xth stage shift register is the input signal of a yth stage shift register. The first output unit is configured to at least receive the signal of the first output node and the signal of the second output node, and control a first output signal.

公开(公告)号：US20230215814A1

公开(公告)日：2023-07-06

申请号：US17723524

申请日：2022-04-19

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Yihua ZHU ,  Qingjun LAI ,  Jinjin YANG ,  Jiaxian LIU

IPC: H01L23/552 ,  H01L27/12

CPC classification number: H01L23/552 ,  H01L27/124 ,  H01L27/3262

Abstract: The present application discloses a display panel and a display apparatus. The display panel includes a substrate, a first shielding layer and a driving circuit layer. The first shielding layer is located on a side of the substrate, and the first shielding layer includes a plurality of first shielding units located in a first display region and a plurality of second shielding units located in a second display region. At least a portion of adjacent first shielding units are connected through first connecting parts, and a portion of adjacent second shielding units are connected through second connecting parts. The driving circuit layer is located on a side of the first shielding layer away from the substrate, the driving circuit layer includes a plurality of driving circuits, and each driving circuit includes a driving transistor.

公开(公告)号：US20230178565A1

公开(公告)日：2023-06-08

申请号：US18075605

申请日：2022-12-06

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI ,  Jinjin YANG ,  Yihua ZHU

IPC: H01L27/12

CPC classification number: H01L27/124 ,  H01L27/1255

Abstract: Provided are a display panel and a display device. The display panel includes data lines, signal wirings and connection wires. The data lines are located in a display region, and the data line includes a first data line and a second data line. The signal wiring includes a first signal wiring and a second signal wiring. The connection wires are located in the display region, the connection wire includes a first connection wire and a second connection wire, where the first connection wire is connected to the first data line and the first signal wiring, and the second connection wire is connected to the second data line and the second signal wiring; the first connection wire includes a first sub-subsection and a first sub-wire which are connected to each other, the second connection wire includes a second sub-subsection and a second sub-wire which are connected to each other.

公开(公告)号：US20240412692A1

公开(公告)日：2024-12-12

申请号：US18807430

申请日：2024-08-16

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI

IPC: G09G3/3233

Abstract: Provided is a display panel. A width W1 of a first data refresh region of the display panel working in a first stage is not equal to a width W2 of a first data refresh region of the display panel working in a second stage. In the conversion from the first stage to the second stage, the width of the first data refresh region is gradually reduced, and the second stage includes a second data refresh region with a refresh frequency different from a refresh frequency of the first data refresh region, so that the display panel can satisfy different display requirements simultaneously.

公开(公告)号：US20240412684A1

公开(公告)日：2024-12-12

申请号：US18807404

申请日：2024-08-16

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI

IPC: G09G3/3225

Abstract: Provided is a display panel. The display panel includes a pixel circuit and a driver circuit. The pixel circuit includes a drive module and a preset module. The preset module is configured to provide a preset signal for the drive module. The driver circuit is configured to provide a control signal for the preset module. At least part of the time period during which the display panel operates includes a transition phase. The transition phase is between the end of a retention frame of the first data refresh area and the start of a data write frame of the second data refresh area. Alternatively, the transition phase is between the end of a data write frame of the second data refresh area and the start of a retention frame of the first data refresh area.

公开(公告)号：US20240386840A1

公开(公告)日：2024-11-21

申请号：US18786126

申请日：2024-07-26

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Qingjun LAI ,  Chengxu LI ,  Xiangyuan LI ,  Jinjin YANG ,  Yong YUAN

IPC: G09G3/32 ,  G11C19/28

Abstract: A display panel includes a driver circuit including shift registers with N stages and being cascade with each other, where N≥2, and each shift register includes a first control portion and a second control portion. The first control portion is configured to control a first output signal, where the first output signal of an i-th stage of shift register is an input signal of a j-th stage of shift register, and 1≤i≤N, 1≤j≤N. The second control portion is configured to receive at least the first output signal and a frequency control signal and control a second output signal. In a case where the first output signal is an effective pulse and a time period of the effective pulse is within a time period of an effective pulse of the frequency control signal, the second output signal is the effective pulse.