Industry news

Nan nagging: the secret of Touch on the principle of touch screen

Part of the touch screen of the surface acoustic wave touch screen can be a flat, spherical or cylindrical glass plate, mounted on the front of the LED, LCD, CRT or plasma display screen. This glass plate just a pure tempered glass, difference in don't touch of class screen technology is not any film and covering layer.

The upper left and lower right corner of the glass screen is fixed with an ultrasonic transmitting transducer with a vertical and horizontal direction, and the upper right corner of the glass screen is fixed with two ultrasonic receiving transducers. The four sides of the glass screen are engraved with a 45 degree angle from the sparse to dense spacing very precise reflection fringes.

Performance features

High clarity, good light transmittance. Highly durable, anti scratch resistance (relative to the resistance, capacitance, etc. there are surface film). Sensitive response and is not affected by environmental factors such as temperature, humidity, high resolution, long service life, maintenance good 50 million times); high transmittance (92%), can keep clear and transparent image quality; no drift, only need to install a correction; a third axis (i.e. the pressure axis in response, at present in public places use more.

Surface acoustic wave screen need regular maintenance, because of the dust, liquid contamination oil even drinks in the surface of the panel will blocking touch screen surface of the trough of the wave, the wave can not be normal emission, or the waveform changes and controller cannot normal recognition, thus affecting the touch screen in normal use, users need to pay strict attention to the environmental health. Must often wipe the surface of the screen to maintain the smooth surface of the screen, and make a comprehensive and thorough wipe.

On a：The surface acoustic wave technology will be used in car touch screen