Ultrasonic and piezoelectric touch device and intelligent terminal

Abstract

The invention relates to the technical field of touch control, and particularly discloses an ultrasonic and piezoelectric touch control device and an intelligent terminal. The device comprises a shell, an ultrasonic receiving module, an ultrasonic transmitting module, a piezoelectric vibration module and a control module, wherein the control module is connected with the ultrasonic receiving module, the ultrasonic transmitting module and the piezoelectric vibration module, and the ultrasonic receiving module, the ultrasonic transmitting module and the piezoelectric vibration module are arranged on the shell; and the ultrasonic receiving module and the ultrasonic transmitting module are arranged close to the piezoelectric vibration module. The defects that a conventional capacitive touch control scheme does not have physical vibration feedback and a pressure-sensitive key can only be pressed are overcome, the experience of vibration feedback during touch can be provided for a user, and the operation effect similar to that of a real physical key is achieved.

Description

technical field [0001] The invention relates to the field of touch technology, and specifically discloses an ultrasonic and piezoelectric touch device and an intelligent terminal. Background technique [0002] At present, the touch detection solutions on the market are mainly capacitive touch solutions, but the capacitive touch solutions cannot realize vibration feedback, and are prone to the risk of false touch. Although the pressure-sensitive button technology can realize vibration feedback and avoid the risk of false touch, the disadvantage of the pressure-sensitive button technology is that it must be pressed to generate vibration feedback, that is, a certain deformation must be generated on the shell to be transmitted to the sensor. In turn, changes in resistance or inductance are generated, which in turn generates vibration feedback, especially in some metal shell application scenarios, due to the small deformation of the metal, there is a risk of vibration sensitivity...

AI Technical Summary

Problems solved by technology

[0002] At present, the touch detection solutions on the market are mainly capacitive touch solutions, but the capacitive touch solutions cannot achieve vibration feedback, and are prone to the risk of false touch

Although the pressure-sensitive button technology can realize vibration feedback and avoid the risk of false touch, the disadvantage of the pressure-sensitive button technology is that it must be pressed to generate vibration feedback, that is, a certain deformation must be generated on the shell to be transmitted to the sensor. This will lead to changes in resistance or inductance, which in turn will generate vibration feedback, especially in some metal shell application scenarios, due to the small deformation of the metal, there will be a risk of vibration sensitivity degradation or even failure

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