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Touch control display panel and touch control display device

A touch display panel, touch signal technology, applied in instruments, computing, electrical and digital data processing, etc., can solve problems such as large potential difference, and achieve the effect of reducing potential difference, improving display effect, and improving production efficiency

Active Publication Date: 2017-07-04
SHANGHAI AVIC OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, embodiments of the present invention provide a touch display panel and a touch display device to solve the problem of large potential differences between different common electrode blocks on the touch display panel in the prior art

Method used

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  • Touch control display panel and touch control display device
  • Touch control display panel and touch control display device
  • Touch control display panel and touch control display device

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Embodiment Construction

[0040] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0043] Such as figure 1 , figure 2 and imag...

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Abstract

Embodiments of the invention provide a touch control display panel and a touch control display device. A plurality of switches, each of which comprises a control terminal, an input terminal and an output terminal, are disposed between a common voltage source and common electrodes, wherein each control terminal is connected to a first control terminal, each input terminal is connected to a first input terminal, and each output terminal is connected to a corresponding touch control signal input pin; so that common voltage can be input into all common electrodes through a signal common voltage source in the display phase; and therefore potential difference among the common electrodes is reduced. In addition, according to the technical scheme, a plurality of touch control electrode test signals can be input into the plurality of common electrodes in the touch control test phase to complete the touch control test, and therefore an external equivalent test circuit is not required, and production efficiency is improved.

Description

[0001] 【Technical field】 [0002] The present invention relates to the field of touch technology, in particular to a touch display panel and a touch display device. [0003] 【Background technique】 [0004] With the development of the field of touch technology, display panels with touch functions have increasingly become mainstream display products. The existing integration methods of display panels and touch panels are generally divided into two methods: in-cell (embedded) and on-cell (outside the box). Compared with on-cell touch screens, in-cell touch screens are more For thin and light. [0005] The inventor finds that there are at least the following problems in the prior art: [0006] On the touch display panel of an in-cell touch screen in the prior art, each common electrode block corresponds to a different common voltage source, and in addition, each common electrode block at a different position may be connected to a touch wire of a different length, resulting in a d...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0416
Inventor 席克瑞崔婷婷
Owner SHANGHAI AVIC OPTOELECTRONICS
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