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Surface acoustic wave touch screen and touch display system

A surface acoustic wave, touch screen technology, applied in instruments, electrical digital data processing, data processing input/output process and other directions, can solve the problem that the touch screen cannot realize multi-touch recognition and so on

Pending Publication Date: 2017-01-04
TSD ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the touch screen using ultrasonic technology in the prior art cannot realize multi-touch recognition

Method used

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  • Surface acoustic wave touch screen and touch display system
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  • Surface acoustic wave touch screen and touch display system

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Embodiment Construction

[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the field of touch screens, in particular to a surface acoustic wave touch screen and a touch display system. The surface acoustic wave touch screen comprises a screen body, at least one set of ultrasonic surface wave transmitting units arranged on one side of the screen body and used for linearly transmitting ultrasonic surface waves from the surface of the screen body, and at least one set of ultrasonic surface wave receiving units arranged on the side, opposite to the at least one set of ultrasonic surface wave transmitting units, of the screen body, and at least two sets of ultrasonic surface wave receiving units correspond to the at least two sets of ultrasonic wave transmitting units one to one. The ultrasonic surface wave receiving units are arranged on the side opposite to the ultrasonic surface wave transmitting units and used for receiving ultrasonic surface waves sent by the ultrasonic surface wave transmitting units. According to the surface acoustic wave touch screen and the touch display system, multi-point recognition on the touch screen can be achieved, and the problem that in the prior art, a surface wave touch screen cannot achieve multi-point touch recognition is solved.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a surface acoustic wave touch screen and a touch display system. Background technique [0002] In recent years, touch technology has developed rapidly. Multi-touch, light force, zero frame, anti-pollution, and low cost have become the objective requirements of this industry. At present, projected capacitive screens have been widely used in smartphones, tablet computers and other consumer electronic devices, but the most obvious disadvantages of projected capacitive screens are high cost and unavoidable optical defects due to their own factors. [0003] Ultrasound has been applied in the field of touch screen with its superior optical performance. An existing ultrasonic sensing touch screen is to set two sets of ultrasonic sensing devices on the rectangular outer frame of the touch screen, and each set of ultrasonic sensing devices includes Ultrasonic transmitting sensor and ultrason...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/043
CPCG06F3/0412G06F3/0416G06F3/043G06F2203/04104
Inventor 张新泉
Owner TSD ELECTRONICS TECH
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