公开(公告)号：US20230020489A1

公开(公告)日：2023-01-19

申请号：US17942926

申请日：2022-09-12

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

Inventor： Yimiao DING ,  Lihua WANG ,  Tingting LI ,  Pengfei QIU

IPC: H01L33/62 ,  H01L25/075

Abstract: Embodiments of the present disclosure provide a driving board, a display panel and a display device. The driving board includes a plurality of pixel regions; the pixel regions each include a pixel circuit, a first power supply structure and a second power supply structure; the first power supply structure is configured to provide a first power voltage and the second power supply structure is configured to provide a second power voltage; the driving board includes a substrate, the pixel circuit, the first power supply structure and the second power supply structure are located at a same side of the substrate; wherein at least one of the first power supply structure and the second power supply structure includes a block structure, at least one inorganic layer is provided at a side of the block structure away from the substrate; and the block structure includes a first block structure, the first block structure includes at least one first opening. The present disclosure can reduce the chance of display anomalies.

公开(公告)号：US20230316969A1

公开(公告)日：2023-10-05

申请号：US18299514

申请日：2023-04-12

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

Inventor： Yimiao DING ,  Lihua WANG ,  Zhenhai YIN ,  Tingting LI ,  Peng GUI ,  Zhicheng WU ,  Qiongqin MAO

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/06 ,  G09G2330/12

Abstract: A display panel, a motherboard, and a mini LED display device. The display panel includes: a panel edge extending along a first direction, and a display region and a test region. The test region is between the display region and the panel edge and includes test pads. At least two test pads are arranged along the first direction, adjacent ones of which are spaced by at least two first electrostatic discharge protection wires extending from one side of the display region adjacent to the test region to the panel edge. Each first electrostatic discharge protection wire includes a first line segment located between two adjacent test pads and a second line segment adjacent to the panel edge. A distance between adjacent first line segments between two adjacent test pads in the first direction is less than a distance between adjacent second line segments in the first direction.