A display panel and a display device

A display panel and display area technology, which is applied in the direction of identification devices, instruments, calculations, etc., can solve the problems of vertical lines on the display screen and affect the display effect of the display panel, and achieve the goal of improving uniformity, improving display effects, and eliminating vertical lines Effect

Active Publication Date: 2019-04-05
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the inventors found that in the existing embedded touch display panel, vertical lines appear on the display screen during the display process, which affects the display effect of the display panel.

Method used

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  • A display panel and a display device

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Embodiment Construction

[0067] As described in the background art, in the existing in-cell touch display panel, vertical stripes appear on the display screen, which affects the display effect of the display panel. The inventor found that the reason why the vertical stripes appear on the display screen is that in the direction perpendicular to the extension of the lead (hereinafter referred to as the horizontal direction), extending from the via hole that is electrically connected to the lead, the potential on the common electrode will vary with the distance from the via hole. increases and gradually decreases.

[0068] Specifically, refer to Figure 1-Figure 3 , figure 1 It is a top view of an existing in-cell touch display panel. The display panel includes a display area and a frame area. The display area is provided with a plurality of common electrodes 11 and a plurality of leads 13 electrically connected to the plurality of common electrodes 11. The lead 13 is electrically connected to the comm...

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Abstract

The invention provides a display panel. The display panel comprises multiple public electrodes in a display area, and 2kn leads electrically connected with the public electrodes through multiple through holes. Each public electrode is electrically connected with 2k leads, wherein k is a natural number. The through holes are formed in an axial symmetry mode with the center line of the public electrodes as the symmetric axis. The leads electrically connected with each public electrode are symmetric about the center line of the public electrode. The arrangement modes of the through holes and the leads of each public electrode in the same public electrode row are similar, and the through holes and the leads are in the same area of the public electrode, so that the potentials of the two sides of the public electrode are the same in the extending direction of the public electrode row, it is ensured that the potentials of the adjacent public electrode boundary areas in the same public electrode row are the same, uniformity of the potentials in different areas of the public electrode is improved, vertical fringes on a display image are reduced or even eliminated, and the display effect of the display panel is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background technique [0002] In the existing in-cell touch display panel, the common electrode layer is divided into a plurality of common electrodes, so as to reuse the common electrodes as touch electrodes. Wherein, each common electrode is electrically connected to the driving chip through a lead, so as to receive the common voltage signal and the touch signal output by the driving chip. [0003] However, the inventor found that, in the existing in-cell touch display panel, vertical stripes may appear on the display screen during the display process, which affects the display effect of the display panel. SUMMARY OF THE INVENTION [0004] In view of this, the present invention provides a display panel and a display device, which reduce vertical stripes on a display screen and improve the display effect of the display p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00G02F1/1343G02F1/1333G06F3/041
CPCG02F1/13338G02F1/134309G06F3/0412G09F9/00
Inventor 李元行陈国照
Owner XIAMEN TIANMA MICRO ELECTRONICS
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