公开(公告)号：US12087191B2

公开(公告)日：2024-09-10

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：US11204659B2

公开(公告)日：2021-12-21

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 ,  G06K7/10 ,  G06K9/00 ,  H05K1/02 ,  H05K1/11 ,  H05K1/14 ,  H05K1/18

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：US20200068707A1

公开(公告)日：2020-02-27

申请号：US16672534

申请日：2019-11-04

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

Inventor： Huijian XIA ,  Ning Xu

IPC: H05K1/02 ,  H05K1/18 ,  G09G3/00

Abstract: The present disclosure relates to the field of circuit testing technologies and discloses a flexible circuit board and a test fixture. The flexible circuit board comprises: a flexible body which has a first crimping portion and an extension portion, the first crimping portion being used to be laminated with a second crimping portion of a substrate to be tested; a first electrically connected structure which is located on a first side of the flexible body, arranged on the first crimping portion, and used to be laminated with a second electrically connected structure on the second crimping portion; a support structure which is located on the first side of the flexible body and includes a first support portion and a second support portion; the first support portion is arranged on the extension portion and configured to support the extension portion in the laminating state.

公开(公告)号：US11217131B2

公开(公告)日：2022-01-04

申请号：US16672534

申请日：2019-11-04

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

Inventor： Huijian Xia ,  Ning Xu

IPC: H05K1/02 ,  G09G3/00 ,  H05K1/18

Abstract: The present disclosure relates to the field of circuit testing technologies and discloses a flexible circuit board and a test fixture. The flexible circuit board comprises: a flexible body which has a first crimping portion and an extension portion, the first crimping portion being used to be laminated with a second crimping portion of a substrate to be tested; a first electrically connected structure which is located on a first side of the flexible body, arranged on the first crimping portion, and used to be laminated with a second electrically connected structure on the second crimping portion; a support structure which is located on the first side of the flexible body and includes a first support portion and a second support portion; the first support portion is arranged on the extension portion and configured to support the extension portion in the laminating state.