公开(公告)号：US20200126470A1

公开(公告)日：2020-04-23

申请号：US16257105

申请日：2019-01-25

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

Inventor： Yana GAO ,  Xinzhao LIU ,  Yue LI ,  Xingyao ZHOU ,  Kaihong HUANG

IPC: G09G3/20

Abstract: The present disclosure provides a display panel including: gate lines; data lines insulated from and intersecting with gate lines; pixel units; first and second clock signal lines; first and second power signal lines; gate driving units; and virtual driving units. Each gate driving unit has an output terminal electrically connected to gate lines, a first clock signal input terminal electrically connected to first clock signal line, and a second clock signal input terminal electrically connected to second clock signal line. Each virtual driving unit has an output terminal insulated from gate lines, a first clock signal input terminal insulated from first and second clock signal lines, and a second clock signal input terminal insulated from first and second clock signal lines. At least one virtual driving unit is disposed within the rounded angle region and located between two gate driving units.

公开(公告)号：US20190164460A1

公开(公告)日：2019-05-30

申请号：US16131118

申请日：2018-09-14

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

Inventor： Xinzhao LIU ,  Kaihong HUANG

IPC: G09G3/00 ,  G02F1/1345 ,  G02F1/1362

Abstract: Provided is a display panel, a panel lighting test method thereof, and a display device. The display panel includes a display area and a non-display area. The display area includes a plurality of data lines, and at least two of data lines are different in length in the display area. The non-display area includes a panel lighting test terminal for inputting panel lighting signals to the display panel and a switching circuit including a plurality of switching units, and each switching units is associated to at least two data lines. The panel lighting test terminal is connected to the plurality of switching units, and connected to an i-th switching unit closest to the panel lighting test terminal through first lines. The display panel for image display solves the problem of the insufficient test accuracy due to signal delay in the related art.

公开(公告)号：US20200144351A1

公开(公告)日：2020-05-07

申请号：US16261658

申请日：2019-01-30

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

Inventor： Xinzhao LIU ,  Kaihong HUANG ,  Min CHEN ,  Jiayao YANG ,  Lin CHENG ,  Yana GAO

IPC: H01L27/32 ,  H01L51/52

Abstract: A display panel and a display device are provided. The display panel has a display region and a peripheral region surrounding the display region. The display panel includes: a scan driving circuit arranged in the peripheral region; a low-level voltage signal line arranged in the peripheral region and electrically connected to the scan driving circuit; an auxiliary metal line arranged in the peripheral region and electrically connected to the low-level voltage signal line. The peripheral region includes a first and second peripheral region located on opposite sides of the display region in a first direction, and a third and fourth peripheral region located on opposite sides of the display region in a second direction, the first direction being perpendicular to the second direction. The auxiliary metal line at least extends in the first, third and second peripheral region to form a structure partially surrounding the display region.