公开(公告)号：US20230206793A1

公开(公告)日：2023-06-29

申请号：US17681518

申请日：2022-02-25

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

Inventor： Ning XU ,  Xiong YANG ,  Zhihua YU

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2330/12

Abstract: A circuit board, a display module, and a display device are provided. The circuit board includes: a base substrate including a first surface and a second surface opposite to each other; bonding pads on the first surface; test pads electrically connected to the bonding pads and disposed on the second surface; a test auxiliary structure on the second surface; and a metal layer on the second surface. The test auxiliary structure overlaps with the test pads along a first direction which is a direction perpendicular to the first surface and the second surface of the base substrate; and the metal layer includes a metal structure for transmitting a first signal and the test auxiliary structure is insulated from the metal structure.

公开(公告)号：US20210132718A1

公开(公告)日：2021-05-06

申请号：US16837532

申请日：2020-04-01

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

Inventor： Ning XU ,  Zhihua YU ,  Tao PENG

IPC: G06F3/041 ,  G06K9/00 ,  H05K1/18 ,  H05K1/02

Abstract: The present disclosure provides a flexible circuit board. The flexible circuit board includes a substrate; a conductive layer, disposed on the substrate; and a cover layer, disposed on a side of the conductive layer facing away from the substrate. The flexible circuit board is provided with a through hole penetrating through the flexible circuit board in the thickness direction. The cover layer includes a hollowed-out region located at least at an edge of one side of the through hole. The conductive layer includes an electrostatic discharge section exposed in the hollowed-out region.

公开(公告)号：US20200081568A1

公开(公告)日：2020-03-12

申请号：US16257118

申请日：2019-01-25

Applicant: WuHan TianMa Micro-Electronics Co., Ltd.

Inventor： Ning XU ,  Jingxiong ZHOU ,  Ruiyuan ZHOU

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G02F1/1333 ,  G02F1/1362 ,  H01L27/32

Abstract: The present disclosure provides a display panel and a display device. The display panel and display device include a first substrate and a second substrate positioned opposite the first substrate. The first substrate includes first binding pin, and the second substrate includes second binding pin. The second substrate further includes at least one protruding portion and at least one recessed portion, the second binding pins are located on the protruding portion, and the first binding pins are exposed from the recessed portion. Such configuration reduces a total width of a binding region of the display panel and the display device, achieves a narrow border, and improves a display area occupation ratio.