Types of Kunlun Tongtai touch screens

Kunlun touch screen is a positioning device, the user can directly enter coordinate information by pointing to the computer, just like a mouse and keyboard, it is also an input device. Kunlun touch screen has many advantages such as durability, fast response, space saving, and convenient communication. With this technology, you can operate the console with a finger touch on the icon or text on the computer display, making the human-computer interaction more straightforward.

Infrared touch screen

The infrared touch screen adopts the infrared matrix densely packed in the X and Y directions to detect and locate the user's touch, the infrared touch screen is provided with a circuit board frame on the front side of the display, and the circuit board is provided with an infrared emitting tube and an infrared receiving tube on the four sides of the screen, corresponding to the horizontal and vertical crossing of the infrared matrix. The infrared touch screen has the advantages of high light transmittance, no current, voltage, static interference, and high touch stability, but the infrared touch screen is affected by ambient light and by the infrared light source. Remote control, high-temperature objects, incandescent lamps, etc. influence, while reducing its accuracy.

Sound touch screen

Surface acoustic touch screen.

Surface acoustic touch screen is a touch technology that localizes by sound waves, where sensors are glued to the four corners of the touch screen for sending and receiving sound waves in X and Y, and 45° reflective stripes are engraved around. When a finger touches the screen, the finger absorbs part of the sound energy, and the controller detects the attenuation of the received signal at some point and calculates the position of the contact point.

Surface acoustic wave technology is very stable and has high precision. In addition to the X and Y coordinates that a normal touchscreen can respond to, it also responds to its unique third axis, the Z-axis, the pressure axis response. With this function, each contact has not only a double switching state of touch and no touch, but also an analog switch with inductive force: the higher the pressure, the greater the attenuation gap on the waveform of the received signal. Deeper and deeper.

Light is like a touch screen.

A light image touch screen is a touch technology that uses light to locate light sources and capture sensors at the four corners of the screen. When an object touches the surface of the touch screen, the light changes, and the touch IC module analyzes the light sensor. This change determines the location of the touch. The optical image touch screen has high durability, is suitable for complex environments, and supports multi-touch, but it is easy to be misidentified by ambient light, dust, insects, etc. Currently, the technology is only available for desktop monitors over 10 inches.

Electromagnetic induction touch screen.

The sensor of the electromagnetic induction touch screen is located behind the display, and the sensor creates an electromagnetic area on the surface of the display. Electronically inductive touchscreen pens touch sensors on the surface of a display can determine the position of a touch point by calculating electromagnetic changes. Compared with other touch screen technologies, electromagnetic induction touch screens have high precision, low resolution, low power consumption, and light weight. Ideal for war environments and built environments. Currently, this technology is mainly used by the United States military.

Types of Kunlun Tongtai touch screens

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