US-12622142-B2 - Display panel and display apparatus

US12622142B2US 12622142 B2US12622142 B2US 12622142B2US-12622142-B2

Abstract

A display panel and a display apparatus are provided, the display panel includes a substrate, a plurality of sub-pixels, a plurality of data lines, and a crack detection line. A first peripheral area surrounds a display area; the plurality of data lines are connected to the plurality of sub-pixels; and the crack detection line surrounds the display area, is arranged along the edge of the first peripheral area and a second peripheral region, and is connected to at least one of the plurality of data lines.

Inventors

Linhong HAN
Yi Qu
Yi Zhang
Chang Luo
Tingliang Liu
Youngyik KO

Assignees

CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20210705
Priority Date: 20200803

Claims (16)

1 . A display panel, comprising: a substrate comprising a display region and a peripheral region surrounding the display region, wherein the peripheral region comprises a first peripheral region and a second peripheral region, the first peripheral region surrounds the display region, and the second peripheral region is located on a side of the first peripheral region; a plurality of sub-pixels located in the display region; a plurality of data lines located in the display region and electrically connected to the plurality of sub-pixels; and a crack detection line located on the substrate, wherein the crack detection line surrounds the display region and is disposed along edge lines of the first peripheral region and the second peripheral region, and the crack detection line is electrically connected to at least one of the plurality of data lines; wherein the peripheral region further comprises a third peripheral region, the third peripheral region is located on a side of the second peripheral region away from the display region, the crack detection line is disposed along an edge line of the third peripheral region, and an area of the third peripheral region is larger than an area of the second peripheral region.
2 . The display panel according to claim 1 , wherein the crack detection line is electrically connected to two of the plurality of data lines and two endpoints of the crack detection line are electrically connected to the two data lines, respectively.
3 . The display panel according to claim 2 , wherein the crack detection line comprises a first trace segment and a second trace segment, the first trace segment and the second trace segment are symmetrically disposed relative to the display region, and the two of the data lines comprise a first data line and a second data line, the first trace segment is electrically connected to the first data line, and the second trace segment is electrically connected to the second data line.
4 . The display panel according to claim 1 , further comprising a plurality of first pads located in the third peripheral region, wherein the plurality of first pads comprise a first detection pad, the first detection pad is electrically connected to the crack detection line, and the first detection pad comprises at least one of the plurality of first pads.
5 . The display panel according to claim 4 , wherein the first pads are configured to receive a test signal to control the test signal to be transmitted through the crack detection line to the at least one data line.
6 . The display panel according to claim 4 , further comprising a plurality of second pads, wherein the plurality of second pads are located on a side of the plurality of first pads, the plurality of second pads comprise a second detection pad, the second detection pad is electrically connected to the crack detection line, and the second detection pad comprises at least one of the plurality of second pads.
7 . The display panel according to claim 6 , wherein the plurality of second pads are configured to be electrically connected to a drive chip, and the drive chip receives an input signal to control display of the sub-pixels connected to the data lines.
8 . The display panel according to claim 6 , further comprising a plurality of third pads, the plurality of third pads are located on a side of the plurality of second pads away from the display region, the plurality of third pads comprise a third detection pad, the third detection pad is electrically connected to the crack detection line, the third detection pad comprises at least one of the plurality of third pads, and the third detection pad is located between the plurality of first pads and the plurality of second pads.
9 . The display panel according to claim 8 , wherein the crack detection line comprises a first trace segment, a second trace segment, and a third trace segment, the third trace segment is connected to the first trace segment and the second trace segment, the third trace segment is located between the plurality of second pads and the display region, and the first detection pad, the second detection pad, and the third detection pad are all electrically connected to the third trace segment.
10 . The display panel according to claim 9 , wherein the second peripheral region is in a shape of a rectangle, and opposite boundaries of the second peripheral region are connected to the first peripheral region and the third peripheral region, respectively.
11 . The display panel according to claim 10 , wherein the third peripheral region comprises a trace region and a pad region that are connected, the trace region is in a shape of a trapezoid, the pad region is in a shape of a rectangle, the third trace segment is located in the trace region, the plurality of first pads, the plurality of second pads, and the plurality of third pads are located in the pad region.
12 . The display panel according to claim 1 , further comprising a crack blocking structure, the crack blocking structure is located at an edge of the peripheral region and located on a side of the crack detection line away from the display region to block a crack in the display panel in a process of non-regular shape cutting.
13 . The display panel according to claim 12 , wherein the crack blocking structure comprises a retaining wall and the retaining wall is located on the substrate.
14 . The display panel according to claim 1 , wherein a boundary of the first peripheral region forms a circle having a notch, and the second peripheral region is connected to the notch.
15 . The display panel according to claim 1 , wherein the substrate comprises a flexible substrate or a rigid substrate.
16 . A display apparatus, comprising the display panel according to claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a U.S. National Phase Entry of International Application PCT/CN2021/104491 having an international filing date of Jul. 5, 2021, which claims priority and benefits of the patent application No. 202010767100.2 filed to the CNIPA on Aug. 3, 2020, and the contents disclosed in the above-mentioned applications are hereby incorporated as a part of this application. TECHNICAL FIELD The present application relates to, but is not limited to, the field of display technologies, in particular to a display panel and a display apparatus. BACKGROUND With development of display technologies, display panels are gradually becoming miniaturized, such as for smart phones and smart watches. In order to adapt to installation of various functional components of a display apparatus, non-regular shape cut needs to be performed on a display panel. In a cutting process, due to an impact of a laser, cracks will easily easy to occur, and a display effect of a display panel with a crack is poor, which affects a product yield. SUMMARY Embodiments of the present application provide a display panel and a display apparatus. A display panel according to an embodiment of the present application includes a substrate, multiple sub-pixels, multiple data lines, and a crack detection line. The substrate includes a display region and a peripheral region surrounding the display region, the peripheral region includes a first peripheral region and a second peripheral region, the first peripheral region surrounds the display region, the second peripheral region is located on a side of the first peripheral region; the multiple sub-pixels are located in the display region; the multiple data lines are located in the display region and electrically connected to the multiple sub-pixels; the crack detection line is located on the substrate, the crack detection line surrounds the display region and is disposed along edge lines of the first peripheral region and the second peripheral region, the crack detection line is electrically connected to at least one of the multiple data lines. In some embodiments, the peripheral region further includes a third peripheral region, wherein the third peripheral region is located on a side of the second peripheral region away from the display region, the crack detection line is disposed along an edge line of the third peripheral region, and an area of the third peripheral region is larger than an area of the second peripheral region. In some embodiments, the crack detection line is electrically connected to two of the multiple data lines, and two endpoints of the crack detection line are electrically connected to the two data lines, respectively. In some embodiments, the display panel further includes multiple first pads located in the third peripheral region, wherein the multiple first pads include a first detection pad, the first detection pad is electrically connected to the crack detection line, and the first detection pad includes at least one of the multiple first pads. In some embodiments, the first pads are configured to receive a test signal to control the test signal to be transmitted through the crack detection line to the at least one data line. In some embodiments, the crack detection line includes a first trace segment and a second trace segment, the first trace segment and the second trace segment are symmetrically disposed relative to the display region, and the two of the data lines include a first data line and a second data line, the first trace segment is electrically connected to the first data line, and the second trace segment is electrically connected to the second data line. In some embodiments, the display panel further includes multiple second pads, wherein the multiple second pads are located on a side of the multiple first pads, the multiple second pads include a second detection pad, the second detection pad is electrically connected to the crack detection line, and the second detection pad includes at least one of the multiple second pads. In some embodiments, the multiple second pads are configured to be electrically connected to a drive chip, and the drive chip receives an input signal to control display of the sub-pixels connected to the data lines. In some embodiments, the display panel further includes multiple third pads, the multiple third pads are located on a side of the multiple second pads away from the display region, the multiple third pads include a third detection pad, the third detection pad is electrically connected to the crack detection line, the third detection pad includes at least one of the multiple third pads, and the third detection pad is located between the multiple first pads and the multiple second pads. In some embodiments, the crack detection line includes a first trace segment, a second trace segment, and a third trace segment, the third trace segment is connected to the first trace segment and t