公开(公告)号：US20230377517A1

公开(公告)日：2023-11-23

申请号：US18102780

申请日：2023-01-30

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Jieliang LI ,  Ping AN ,  Guoxing CHEN ,  Yuping XU

IPC: G09G3/3233 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/32 ,  G09G2320/0247 ,  G09G2330/021

Abstract: The present application discloses a display panel, an integrated chip and a display apparatus. The display panel includes: a first display area and a second display area; and pixel circuits including first pixel circuits and second pixel circuits, wherein the first pixel circuits are configured to provide driving currents to light emitting elements of the first display area, and the second pixel circuits are configured to provide driving currents to light emitting elements of the second display area, the pixel circuits receive a bias adjustment signal, the bias adjustment signal includes a first bias adjustment signal and a second bias adjustment signal, the first pixel circuits receive the first bias adjustment signal, and the second pixel circuits receive the second bias adjustment signals, a voltage value of the first bias adjustment signal is V1, and a voltage value of the second bias adjustment signal is V2, wherein V1≠V2.

公开(公告)号：US20230076760A1

公开(公告)日：2023-03-09

申请号：US17456774

申请日：2021-11-29

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Yuping XU ,  Jieliang LI

IPC: G09G3/30

Abstract: A display panel and a display device are provided. The display panel includes a pixel circuit, a light-emitting element, and a signal line group. The pixel circuit includes a driving transistor, a data writing transistor, and a first transistor. The first electrode of the first transistor in a first metal layer is connected to a gate of the driving transistor. A side of the first electrode of the first transistor facing the first electrode of the data writing transistor is a first edge and a side of a first electrode of the data writing transistor facing the first electrode of the first transistor is a second edge. Orthographically projected on a plane parallel to the display panel, at least a partial region of at least one signal line is located between the first edge and the second edge, and is arranged in a layer different from the first metal layer.

公开(公告)号：US20230070413A1

公开(公告)日：2023-03-09

申请号：US17456789

申请日：2021-11-29

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Yuping XU ,  Jieliang LI

IPC: G09G3/32 ,  H01L27/12 ,  H01L29/786

Abstract: A display panel and a display device are provided. The display panel includes: a pixel circuit including a driving transistor, a first transistor, and a second transistor; a light-emitting element; a first signal line connected to a gate of the first transistor; a second signal line connected to a gate of the second transistor; and a first capacitor. A source or drain of the first transistor is connected to a gate of the driving transistor; and a source or drain of the second transistor is connected to a source or drain of the driving transistor. When being projected on a surface of the display panel, the second signal line is located between the gate of the driving transistor and the first signal line, or the first signal line and the second signal line are located at two sides of the gate of the driving transistor respectively.

公开(公告)号：US20230282157A1

公开(公告)日：2023-09-07

申请号：US18103690

申请日：2023-01-31

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Jieliang LI ,  Ping AN ,  Guoxing CHEN ,  Yuping XU

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0666 ,  G09G2320/0247

Abstract: Provided are a display panel and a display device. The display panel includes a first display region, a second display region and pixel circuits. The pixel circuits include a first pixel circuit and a second pixel circuit. The first pixel circuit is configured to provide a drive current for a light-emitting element in the first display region. The second pixel circuit is configured to provide a drive current for a light-emitting element in the second display region. The pixel circuits further include at least one bias adjustment module, each of which is configured to provide a bias adjustment signal for a respective one drive transistor. A preset electrode of a drive transistor in the first pixel circuit is connected to one bias adjustment module and a preset electrode of a drive transistor in the second pixel circuit is connected to no bias adjustment module.

公开(公告)号：US20230178009A1

公开(公告)日：2023-06-08

申请号：US18103755

申请日：2023-01-31

Applicant: Xiamen Tianma Display Technology Co., Ltd.

Inventor： Yuping XU ,  Xiao YANG

IPC: G09G3/32 ,  H10K59/121

CPC classification number: G09G3/32 ,  H10K59/1213 ,  H10K59/1216 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2300/0426 ,  G09G2300/0847 ,  G09G2300/0465 ,  H01L27/1225

Abstract: Provided are a pixel driving circuit, a display panel, and a display device. Both a constant voltage signal line and a variable voltage signal line extend along a first direction. The constant voltage signal line includes an initialization voltage line, and the variable voltage signal line includes an initialization control signal line. A first electrode of an initialization transistor is electrically connected to the initialization voltage line, a second electrode of the initialization transistor is electrically connected to a first electrode or a second electrode of a drive transistor, and a gate of the initialization transistor is electrically connected to the initialization control signal line and used for turning on the initialization transistor according to a control signal on the initialization control signal line so as to initialize the first electrode or the second electrode of the drive transistor.