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Type of touch screen
- Jul 13, 2018 -

The principle of the infrared touch screen is very simple, just add the light point frame to the display, no need to add a coating or connection controller on the screen surface. The infrared spot and the receiving tube are arranged on the four sides of the frame, and an infrared net is formed on the surface of the screen. When the user touches a certain point on the screen with a finger, it will block the two infrared rays passing through the position, and the computer can instantly calculate the position of the touch point. The infrared touch screen is immune to current, voltage and static interference and is suitable for certain harsh environmental conditions. Its main advantages are low cost, easy installation, no need for a card or any other controller, and can be used on computers of all grades. However, since the frame is only added to the ordinary screen, the infrared emitting tube and the receiving tube around the frame are easily damaged and the resolution is low during use.