Touch control terminal, touch detection device and detection method thereof

Abstract

The invention relates to a touch control terminal and a touch detection device and a detection method thereof. The touch detection device comprises an ultrasonic device and a signal processing device.When the ultrasonic device is in the liquid environment, the touch terminal is ultrasonically scanned and surface pressure information is obtained, and an induction signal is generated according to the pressure information and the returned ultrasonic wave and sent to the signal processing device. The signal processing device obtains the liquid depth where the touch terminal is located and the touch information of the touch terminal according to the sensing signal. The liquid depth at which the touch terminal is located is detected, and the touch information is obtained by recognizing the touch action of the touch terminal through ultrasonic scanning, so as to facilitate the touch display operation. Simultaneously the touch information detection and the liquid depth detection are carried out, the operation is simple and reliable, even if the touch control terminal is in the conductive liquid, detection on the touch information can also be performed, thereby realizing the touch detection to the touch control terminal under the liquid environment.

Description

Technical field [0001] The present invention relates to the technical field of touch control, in particular to a touch terminal and a touch detection device and detection method thereof. Background technique [0002] The touch screen, also known as "touch screen" or "touch panel", is an inductive device that can receive input signals such as touch. When the graphic buttons on the screen are touched, the tactile feedback system on the screen can drive various connected devices according to the pre-programmed programs, which can be used to replace the mechanical button panel, and use the LCD screen to create dynamic audio-visual effects. With the increase in the types of touch screen products, touch screens are developing in terms of drop resistance and water resistance. [0003] The traditional touch screen adopts a capacitive touch structure. The capacitive touch screen is a four-layer composite glass screen. The inner surface and interlayer of the glass screen are each coated wit...

AI Technical Summary

Problems solved by technology

Since the human body and the surface of the touch screen need to form a coupling capacitance to perform touch detection, when the touch screen is in a liquid environment such as underwater, due to the conductive nature of the liquid, the traditional touch screen cannot realize touch detection in a liquid environment

Images