Touch display device

A technology of touch display and touch sensing, which is applied in the fields of optics, instruments, electrical digital data processing, etc.

Pending Publication Date: 2017-04-05
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing methods can only detect the touch pressure information of a single point.

Method used

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Embodiment Construction

[0024] The touch display device provided by the present invention can be used as a display terminal with a touch interaction form such as a mobile phone and a tablet computer.

[0025] Such as figure 1 As shown, the touch display device includes a protective cover 10 , a touch sensing unit 20 , a display unit and a pressure sensing unit 70 .

[0026] The touch sensing unit 20 includes touch driving electrodes and touch sensing electrodes. The touch driving electrodes and the touch sensing electrodes can be distributed on the same substrate, such as the so-called GF structure, GF2 structure, etc. in the industry, or respectively distributed on two different substrates, such as the GFF structure called in the industry. In some other embodiments, the touch driving electrodes and the touch sensing electrodes may also be formed on the lower surface of the protective cover 10 so that the protective cover 10 also functions as a capacitive sensor. This structure is called an OGS stru...

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PUM

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Abstract

The invention relates to a touch display device comprising a protective cover plate, a touch sensing unit and a display unit, wherein the touch sensing unit is used for sensing a touch signal applied to the protective cover plate, a pressure sensing unit is further arranged in the display unit, the pressure sensing unit comprises a base material, a plurality of electrodes formed on the base material at intervals and a force sensitive resistance layer connected with adjacent electrodes, and the force sensitive resistance layer comprises an insulating substrate and conductive particles dispersed in the insulating substrate. According to the touch display device provided by the invention, the pressure sensing unit is integrated in the display unit, meanwhile the pressure sensing unit is provided with the force sensitive resistance layer, and thus a multipoint touch pressure signal can be detected.

Description

technical field [0001] The invention relates to the field of touch display, in particular to a touch display device with pressure sensing function. Background technique [0002] Due to its advantages of ease of operation and flexibility, the touch screen has become the main means of human-computer interaction for personal mobile communication devices and comprehensive information terminals (such as mobile phones, tablet computers and super notebook computers, etc.). Compared with resistive touch screens and other types of touch screens, capacitive touch screens are gradually being widely used in smart terminals due to their advantages of low cost, simple structure, and durability. However, the existing capacitive touch screen only senses the touch position and operation on the plane where the screen body is located, and it is difficult to sense the touch parameters brought about by the change of pressure applied to the surface of the screen body. [0003] In order to sense ...

Claims

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Application Information

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IPC IPC(8): G06F3/044G02F1/1333
Inventor 钭忠尚孟锴郑刚强唐彬黄梅峰倪宇阳
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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