Technology related to touch screen
Release time:
2023-05-29
A layer of air exists between the damping material on the inner and outer surfaces of the smart board. When pressure is applied to the board to make contact with a point, the smart board can recognize the location of that point and thus complete the operation.
Pressure Sensing Technology
A layer of air exists between the damping material on the inner and outer surfaces of the smart board. When pressure is applied to the board to make contact with a point, the smart board can recognize the location of that point and thus complete the operation.
Sensing strength
Is the performance of the touch screen sensitivity, refers to the touch screen to the external force can produce the correct response range.
Infrared touch screen
Infrared touch screen is installed in pairs around the screen infrared emitter and infrared receiver, the receiver accepts the infrared emitted by the emitter, forming an infrared matrix. When the finger is pressed on the screen, the finger blocks the infrared ray, so that the information is accepted in both X and Y directions to send to the host.
Matrix switcher
The multiple input signals are selected arbitrarily one way or more ways to output to one way or more ways of display equipment respectively.
Coordinate system
Touch screen is an absolute coordinate system, to choose where to directly point where, and the mouse, the essential difference between this type of relative positioning system is a time to place the intuitive. Absolute coordinate system is characterized by the fact that each positioning coordinates and the last positioning coordinates have no relationship, the touch screen is physically an independent set of coordinates positioning system, each touch data through calibration to the coordinates on the screen, so that the requirements of the touch screen this set of coordinates no matter what the situation, the output data from the same point is stable, if not stable, then this touch screen can not guarantee absolute coordinate positioning.
Mo-style hardness coefficient
Is a parameter to measure the hardness of the surface of the touch screen.
Screen type
Touch screen screen type mainly has four types of flat, spherical, columnar, liquid crystal.
Light transmission rate
It directly affects the visual effect of the touch screen. Many touch screen is a multi-layer composite film, only a little transparent to summarize its visual effect is not enough, it should include at least four characteristics: transparency, color distortion, reflectivity and clarity, of course, can be divided, such as the degree of reflection, including the degree of mirror reflection and diffraction reflection, only the touch screen surface diffraction reflection has not reached the degree of CD disk, for the user, the four characteristics have basically enough.
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