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Surface acoustic wave type touch control panel and method for manufacturing the same

A surface acoustic wave, touch panel technology, applied in the touch panel and its manufacturing field, can solve the problems of applicability limitation, fatigue, low sensitivity, etc.

Inactive Publication Date: 2013-08-21
RITEDIA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above three have their advantages and disadvantages, and their applicability is limited by them.
For example, although the capacitive touch panel has good sensitivity, it can only be touched by fingers or charged conductors and the cost is high; the touch medium of the resistive touch panel is not limited to fingers, but the sensing force is worse than that of the capacitive touch panel , and there will be fatigue problems after multiple touches, so the durability is poor, the sensitivity is low, the response is slow, and the light transmittance is poor
On the other hand, although the surface acoustic wave touch panel is the latest and has high durability, it is more expensive and has a longer response time, which is easily affected by stains

Method used

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  • Surface acoustic wave type touch control panel and method for manufacturing the same
  • Surface acoustic wave type touch control panel and method for manufacturing the same
  • Surface acoustic wave type touch control panel and method for manufacturing the same

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Effect test

Embodiment 1

[0036] refer to Figure 1A and Figure 1B and Figure 2A ,in, Figure 1A is a structural schematic diagram of a surface acoustic wave touch panel of the present invention, Figure 1B yes Figure 1A sectional schematic diagram of Figure 2A is a schematic diagram of the electrode setup on the surface of the piezoelectric material layer.

[0037] Such as Figure 1A As shown, a substrate 11 is firstly provided, wherein the substrate 11 can be a transparent substrate, such as a glass substrate, a quartz substrate or a sapphire substrate. In this embodiment, a glass substrate is used as the substrate 11 .

[0038] Then, a piezoelectric material layer 12 is formed on the surface of the substrate 11 , wherein the piezoelectric material layer 12 has a first side edge 121 and a second side edge 122 opposite to the first side edge 121 . In this embodiment, the piezoelectric material layer 12 is an aluminum nitride layer, but the material and structure of the piezoelectric material l...

Embodiment 2

[0043] The method of manufacturing the surface acoustic wave touch panel in this embodiment is substantially the same as that of the first embodiment above, the difference lies in the arrangement of the voltage supply electrode and the voltage receiving electrode in this embodiment refer to Figure 2B , Figure 2B It is a schematic diagram of the voltage supply electrode 13 and the voltage reception electrode 14 on the surface of the piezoelectric material layer 12 .

[0044] Such as Figure 2B As shown, the piezoelectric material layer 12 has a first side edge 121, a second side edge 122 opposite to the first side edge, and a first side edge 121 adjacent to the second side edge 122. There are three side edges 123 , and the voltage supply electrode 13 and the voltage receiving electrode 14 are arranged at intervals along the direction of the first side edge 121 and the direction of the third side edge 123 .

Embodiment 3

[0046] The method of manufacturing the surface acoustic wave touch panel in this embodiment is substantially the same as that of the first embodiment above, the difference lies in the arrangement of the voltage supply electrode and the voltage receiving electrode in this embodiment refer to Figure 2C , Figure 2C It is a schematic diagram of the voltage supply electrode 13 and the voltage reception electrode 14 on the surface of the piezoelectric material layer 12 .

[0047] Such as Figure 2C As shown, the piezoelectric material layer 12 has a first side edge 121, a second side edge 122 opposite to the first side edge, and a first side edge 121 adjacent to the second side edge 122. There are three side edges 123 , and the voltage supply electrodes 13 and the voltage receiving electrodes 14 are respectively arranged in a row along the direction of the first side edge 121 and arranged at intervals along the direction of the third side edge 123 .

[0048] In summary, the pres...

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Abstract

The invention relates to a surface acoustic wave type touch control panel. The panel comprises a substrate; a piezoelectric material layer covering on the substrate, wherein the piezoelectric material layer includes a first piezoelectric material which belongs to alumnium nitride; a voltage supplying electrode which is arranged on the surface of the piezoelectric material layer to provide voltage to the piezoelectric material layer so that a surface acoustic wave is generated by the piezoelectric material layer; a voltage receiving electrode which is disposed on the surface of the piezoelectric material layer to receive a voltage value generated by the surface acoustic wave of the piezoelectric material layer; and an insulating protection film which protects the piezoelectric material layer, the voltage supplying electrode and the voltage receiving electrode. The invention also relates to a method for manufacturing the above surface acoustic wave type touch control panel.

Description

technical field [0001] The invention relates to a touch panel and a manufacturing method thereof, in particular to a surface acoustic wave touch panel and a manufacturing method thereof. Background technique [0002] Touch screens are widely used, such as industrial control systems, navigation systems, point-of-sale terminals, automatic teller machines, mobile phones, tablet computers, and game consoles. According to the principle of detecting touch points, touch panels can be mainly divided into the following three types: The first type is resistive touch panel, which uses a finger or a stylus to press lightly to connect the surface conductive layer to the bottom conductive layer And generate current, so the X coordinate and Y coordinate of the touch point can be detected; the second type is capacitive touch panel, which generates a uniform low-voltage electric field on the surface, and whenever a finger or a charged conductor touches the screen, it will contact with the to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/043
Inventor 宋健民甘明吉林逸樵张建国
Owner RITEDIA CORPORATION
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