Double-touch-face surface acoustic wave touch screen

A surface acoustic wave and touch surface technology, which is applied in the field of new surface acoustic wave touch screens, can solve problems such as loss of sealing layer effect, easy scaling in stripe areas, and attenuation of acoustic wave signals, achieving neat and beautiful appearance, reducing ultrasonic loss, and strong anti-scratch effect of ability

Active Publication Date: 2012-07-25
GENERALTOUCH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as the dust-proof structure mentioned in the patent CN2509621Y, this structure has better short-term dust-proof effect, but after long-term use, the stripe area is easy to foul and affect the touch
For example, the dustproof and waterproof structure mentioned in the patent CN2570842Y, the sealing layer has a certain attenuation to the sound wave signal, and the long-distance transportation will easily make the sealing layer lose its effect

Method used

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  • Double-touch-face surface acoustic wave touch screen
  • Double-touch-face surface acoustic wave touch screen
  • Double-touch-face surface acoustic wave touch screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A surface acoustic wave touch screen with dual touch surfaces, comprising a substrate, an array of emitting stripes, an array of receiving stripes, a receiving transducer and an emitting transducer, the surface of the substrate includes a first touch surface, a second touch surface and a transmission surface, and the emitting stripes The array, the receiving stripe array, the receiving transducer and the emitting transducer are all arranged on the same touch surface, the first touch surface is opposite to the second touch surface, and the transmission surface is respectively connected to the first touch surface and the second touch surface.

[0042] One of the preferred embodiments of the present invention is that the transmission surface is an arc surface, and the relationship between the radian R of the arc surface and the thickness h of the substrate is: h / 2≤R≤h.

[0043] The receiving fringe array includes an X-axis receiving fringe array and a Y-axis receiving fring...

Embodiment 2

[0047] A surface acoustic wave touch screen with dual touch surfaces, comprising a substrate, an array of emitting stripes, an array of receiving stripes, a receiving transducer and an emitting transducer, the surface of the substrate includes a first touch surface, a second touch surface and a transmission surface, and the emitting stripes The array, the receiving stripe array, the receiving transducer and the emitting transducer are all arranged on the same touch surface, the first touch surface is opposite to the second touch surface, and the transmission surface is respectively connected to the first touch surface and the second touch surface.

[0048] Another preferred embodiment of the present invention is that the transmission surface includes at least three successively connected slopes, the angle a between the slope adjacent to the touch surface and the touch surface satisfies 0o

Embodiment 3

[0053] A surface acoustic wave touch screen with dual touch surfaces, comprising a substrate, an array of emitting stripes, an array of receiving stripes, a receiving transducer and an emitting transducer, the surface of the substrate includes a first touch surface, a second touch surface and a transmission surface, and the emitting stripes The array, the receiving stripe array, the receiving transducer and the emitting transducer are all arranged on the same touch surface, the first touch surface is opposite to the second touch surface, and the transmission surface is respectively connected to the first touch surface and the second touch surface.

[0054] The transmission surface includes a slope and a vertical surface perpendicular to the touch surface, the vertical surface is respectively connected to the first touch surface and the second touch surface through the slope, and the angle a between the slope adjacent to the touch surface and the touch surface satisfies 0o< a≤45...

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Abstract

The invention discloses a double-touch-face surface acoustic wave touch screen, which comprises a substrate, a transmitting stripe array, a receiving stripe array, a receiving transducer and a transmitting transducer. The substrate surface includes a first touch face, a second touch face and a transmission face; the transmitting stripe array, the receiving stripe array, the receiving transducer and the transmitting transducer are all arranged on the same touch face; the first and second touch faces are arranged opposite to each other; and the transmission face is connected with the first and second touch faces respectively. The invention involves two touch faces for normal touch, one touch face is provided with an assembly, the other touch face is provided with no functional part, no complex front frame assembly is required to be designed for shielding stripe arrays, transducers and the like, and the touch face without any functional part can directly serve as the front panel of a touch display product, so as to realize acoustic wave touch screen frame-free design.

Description

technical field [0001] The invention relates to a novel surface acoustic wave touch screen, in particular to a novel surface acoustic wave touch screen with double touch surfaces. Background technique [0002] In the prior art, touch screens mainly include surface acoustic wave, infrared, resistance, capacitance and the like. The surface acoustic wave touch screen has the characteristics of high resolution, short response time, good stability, good anti-riot performance, and high transmittance; the infrared touch screen has general resolution, long response time, general stability, good anti-riot performance, and high transmittance. It is easy to be interfered by light; the resistive touch screen has the characteristics of high resolution, short response time, good stability, poor transmittance, and poor anti-riot performance; the capacitive touch screen has high resolution, short response time, general stability, and transparency. It has the characteristics of general over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/043
Inventor 张春来钟德超
Owner GENERALTOUCH TECH
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