Search

CN-224234076-U - Display panel and display device

CN224234076UCN 224234076 UCN224234076 UCN 224234076UCN-224234076-U

Abstract

The application provides a display panel and a display device. The display panel comprises a display part and an edge part, wherein the edge part is provided with a plurality of first conductive pads and at least two redundant conductive pads, the at least two redundant conductive pads are electrically connected through metal wires, and the metal wires are in the same layer with gate wires in the display part or in the same layer with source and drain wires in the display part. The display device comprises the display panel and the flexible circuit board, wherein the flexible circuit board comprises a plurality of second conductive pads which are electrically connected with a plurality of first conductive pads. The application solves the technical problem of insufficient space for arranging the first conductive pad in order to meet the bonding impedance test requirement in the prior art.

Inventors

  • LI TING
  • MA LANXUN
  • WEN CHAOPING

Assignees

  • 武汉华星光电半导体显示技术有限公司

Dates

Publication Date
20260512
Application Date
20250427

Claims (10)

  1. 1. A display panel, the display panel comprising: a display unit, and The display device comprises an edge part, wherein the edge part is provided with a plurality of first conductive pads and at least two redundant conductive pads, the at least two redundant conductive pads are electrically connected through metal wires, and the metal wires are in the same layer with the gate wires in the display part or in the same layer with the source and drain wires in the display part.
  2. 2. The display panel of claim 1, wherein the redundant conductive pad is disposed between two adjacent first conductive pads.
  3. 3. The display panel of claim 1, wherein at least two of the redundant conductive pads comprise a first redundant conductive pad and a second redundant conductive pad, at least one of the first conductive pads being disposed between the first redundant conductive pad and the second redundant conductive pad.
  4. 4. The display panel according to claim 1, wherein the surface of the redundant conductive pad is provided with a plurality of protrusions, and the plurality of protrusions are distributed in an array on the surface of the redundant conductive pad.
  5. 5. The display panel according to claim 4, wherein the height of the protruding portion is 5 to 10 micrometers, the diameter is 20 to 50 micrometers, and the interval between adjacent protruding portions is 100 to 200 micrometers.
  6. 6. The display panel according to claim 4, wherein a tip end of the convex portion is hemispherical in shape.
  7. 7. The display panel of claim 1, wherein each of the redundant conductive pads is provided with a plurality of connection points electrically connected to the metal lines, and wherein the plurality of connection points are distributed at different positions of the redundant conductive pads.
  8. 8. The display panel of claim 7, wherein a plurality of the connection points are radially distributed at an edge region of the redundant conductive pad.
  9. 9. The display panel according to claim 1, wherein a connection reinforcing portion is provided at a connection portion of the metal wire and the redundant conductive pad, a thickness of a metal layer of the connection reinforcing portion is 1.5 to 2 times a thickness of the metal wire, and a width of the connection reinforcing portion is 1.2 to 1.5 times a width of the metal wire.
  10. 10. A display device characterized in that the display device comprises a flexible wiring board and the display panel according to any one of claims 1 to 9; The flexible circuit board comprises a plurality of second conductive pads, and the second conductive pads are electrically connected with the first conductive pads.

Description

Display panel and display device Technical Field The application relates to the technical field of display, in particular to a display panel and a display device. Background The edge portion of the conventional display panel is provided with a plurality of first conductive pads, which are limited by the total width of the flexible circuit board to be electrically connected with the plurality of first conductive pads and the interval between two adjacent first conductive pads, the number of the first conductive pads arranged on the display panel is strictly limited, and the limited number of the first conductive pads cannot adapt to the requirements of different types of display panels. In addition, in order to test the bonding impedance between the first conductive pad on the display panel and the second conductive pad of the flexible circuit board when testing the conventional display panel, 2 (4) first conductive pads (serving as test conductive pads) are usually reserved on two sides of the whole formed by the plurality of first conductive pads in the prior art, so as to test the bonding impedance. The method occupies the space for arranging the first conductive pads, and under the condition that the number of the first conductive pads is limited, the problem of insufficient number of the first conductive pads is further aggravated, so that the functions of the display panel are limited. Therefore, a new solution is needed to solve the above-mentioned problems. Disclosure of utility model An objective of the embodiments of the present application is to provide a display panel and a display device, which are aimed at solving the technical problem of insufficient space for disposing a first conductive pad in order to meet the requirement of bonding impedance test in the prior art. The embodiment of the application provides a display panel which comprises a display part and an edge part, wherein the edge part is provided with a plurality of first conductive pads and at least two redundant conductive pads, the at least two redundant conductive pads are electrically connected through metal wires, and the metal wires are in the same layer with gate wires in the display part or in the same layer with source and drain wires in the display part. In the above display panel, the redundant conductive pad is disposed between two adjacent first conductive pads. In the above display panel, the at least two redundant conductive pads include a first redundant conductive pad and a second redundant conductive pad, and at least one first conductive pad is disposed between the first redundant conductive pad and the second redundant conductive pad. In the above display panel, the surface of the redundant conductive pad is provided with a plurality of protruding portions, and the plurality of protruding portions are distributed in an array on the surface of the redundant conductive pad. In the display panel, the height of the protruding portions is 5-10 micrometers, the diameter of the protruding portions is 20-50 micrometers, and the distance between every two adjacent protruding portions is 100-200 micrometers. In the above display panel, the tip end shape of the convex portion is hemispherical. In the above display panel, each of the redundant conductive pads is provided with a plurality of connection points electrically connected with the metal wires, and the plurality of connection points are distributed at different positions of the redundant conductive pad. In the display panel, the plurality of connection points are radially distributed in the edge area of the redundant conductive pad. In the display panel, a connection reinforcing part is arranged at the connection part of the metal wire and the redundant conductive pad, the thickness of the metal layer of the connection reinforcing part is 1.5-2 times that of the metal wire, and the width of the connection reinforcing part is 1.2-1.5 times that of the metal wire. The embodiment of the application also provides a display device which comprises the flexible circuit board and the display panel, wherein the flexible circuit board comprises a plurality of second conductive pads, and the second conductive pads are electrically connected with the first conductive pads. According to the display panel and the display device provided by the application, the plurality of first conductive pads and the at least two redundant conductive pads are arranged at the edge part, and the at least two redundant conductive pads are electrically connected through the metal wire, wherein the metal wire is in the same layer with the gate wire in the display part or in the same layer with the source and drain wires in the display part, so that the requirement on testing bonding impedance is met, and meanwhile, the arrangement space of the first conductive pads is avoided. Specifically, the technical scheme of the application performs the bonding impedance test by using the redundant conductive