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touch display panel

A technology for touch display panels and substrates, which is applied in the fields of instruments, calculations, and electrical digital data processing, etc., and can solve problems affecting touch detection capabilities and display effects of touch display panels, increased signal delay, and increased process difficulty. Achieve the effect of improving touch detection ability and display effect, increasing key size and reducing difficulty

Active Publication Date: 2018-06-22
SHANGHAI AVIC OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the common electrode is multiplexed as a touch electrode, since there will be some openings on the common electrode for connection between the pixel electrode and the source and drain electrodes, and such an arrangement will make the critical dimension of the common electrode between these openings and the above-mentioned slit (Critical dimension, CD) is too fine, which increases the difficulty of the process, affects the panel aperture ratio, and increases the resistance of the common electrode, and the increase in resistance further causes problems such as increased signal delay on the common electrode, which in turn affects the touch detection of the touch display panel. Capabilities and Displays

Method used

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Embodiment Construction

[0023] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0024] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific...

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Abstract

The present invention provides a touch display panel, comprising: a first substrate; a thin film transistor disposed on the first substrate; a pixel electrode layer disposed on the thin film transistor, and the pixel electrode layer passes through a contact hole connected to the drain or source of the thin film transistor; the common electrode layer is arranged on the first substrate and under the pixel electrode layer, and the common electrode layer is divided into a plurality of common electrodes adjacent to each other. Slits are formed between the common electrodes, and the slits are connected to the contact holes above the slits. The touch display panel provided by the invention improves touch detection capability and display effect.

Description

technical field [0001] The invention relates to the field of display and touch control, in particular to a touch display panel. Background technique [0002] With the development of human-computer interaction technology, touch technology is increasingly used on various displays. Capacitive touch technology is widely used due to its advantages of wear resistance, long life, low maintenance cost for users, and support for gesture recognition and multi-touch. [0003] Capacitive touch technology can be divided into self-capacitive touch technology and mutual-capacitive touch technology according to the detection method of capacitance between different objects. Self-capacitive touch technology detects the presence, position, and motion of an input object on a touch screen based on changes in capacitance between the input object and electrodes. The mutual capacitive touch technology detects the existence, position and movement of an input object on the touch screen according to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/044G06F2203/04111
Inventor 简守甫曹兆铿秦锋夏志强
Owner SHANGHAI AVIC OPTOELECTRONICS
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