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touch panel

A technology of touch panel and touch sensing, which is applied in the direction of instruments, electrical digital data processing, and the input/output process of data processing, etc. It can solve the problems of inconvenient operation for users and poor sensitivity of short-distance sensing, and achieve highly sensitive effects

Inactive Publication Date: 2016-04-20
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sensitivity of the proximity sensing of the touch panel with both touch and proximity sensing functions in the prior art is not good, which causes inconvenience to the user's operation

Method used

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Embodiment Construction

[0061] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0062] Please refer to figure 1 , figure 1 It is a schematic diagram of a touch panel 10 according to an embodiment of the present invention. In this embodiment, the touch panel 10 is a liquid crystal display touch panel, and includes a liquid crystal display and backlight module 20, an emitter electrode layer 30, a substrate 40, a patterned conductive layer 50, a surface layer 60, and a sensing control circuit 70. . The liquid crystal display and backlight module 20 includes a liquid crystal display element and a backlight element, wherein the liquid crystal display element is composed of liquid crystal molecules, transistors, data ...

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Abstract

A touch panel comprises a substrate, a patterning conductive layer and a sensing control circuit, wherein the patterning conductive layer comprises multi-columns of first sensing pads, multi-row of second sensing pads and multi third sensing pads. Every first sensing pad has a first opening; every second sensing pad has a second opening; and every third sensing pad has a third opening. The first sensing pads and the second sensing pads are formed in a main sensing area of the patterning conductive layer, and the third sensing pads are formed in the surrounding area of the patterning conductive layer. The sensing control circuit is used for touch sensing operation by means of the multi-columns of first sensing pads and multi-rows of second sensing pads, and is used for near sensing operation by taking the multi third sensing pads as receive electrodes. Through the touch panel provied by the invention, near sensing operation can be done. Besides, the capacitance value between the emitting electrode and the receiving electrode, which is used for near sensing by special apparatus, is not oversized, and high sensitivity of the touch panel to near sensing can be realized.

Description

technical field [0001] The present invention relates to a touch panel, in particular to a touch panel including a touch sensing function and a proximity sensing function. Background technique [0002] Due to the characteristic of human-computer interaction, the touch panel has gradually replaced the keyboard and is widely used in the input interface of the electronic device. In recent years, with the development of more and more applications of consumer electronic products, there are more and more application products that combine touch panels and displays to form touch display devices, including mobile phones, satellite navigation system (GPSnavigatorsystem), tablet PC (tabletPC) and notebook computer (laptopPC), etc. [0003] When the user operates the touch panel, he usually needs to directly touch the touch panel with his fingers. Such an operation method may easily accumulate germs on the surface of the touch panel, and become a medium for spreading germs between diff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 陈志成王朝珍
Owner AU OPTRONICS CORP