【Science】 The difference between capacitive touch screen and infrared touch screen

Is the capacitive touch screen or the infrared touch screen better for the touch screen advertising machine? What is the difference between the two? The editor decided to issue an issue of #Capacitive Touch Screen and Infrared Touch Screen Difference# to answer your questions!

In fact, it is very simple, you can make a judgment from the appearance. The entire screen of the capacitive screen is flat, like every smart phone; while the infrared screen has a border around it.

The capacitive touch screen is a transparent and relatively stable system. First of all, it must be transparent. Second, the capacitive touch screen can give the absolute coordinates of the touch of our finger. The absolute coordinate system is characterized by the coordinates of each positioning and the last positioning. The coordinates are okay. The touch screen is physically an independent coordinate positioning system, and the position of each touch is converted to coordinates on the screen.

The capacitive screen all-in-one machine is more beautiful, more beautiful, lighter and thinner. It is a pure plane, easy to achieve waterproof function, and the response speed is more sensitive.

The infrared touch screen uses the infrared matrix densely distributed in the X and Y directions to detect and locate the user's touch.

The infrared touch screen is composed of infrared emitting and receiving sensing elements mounted on the outer frame of the touch screen, and an infrared detection net is formed on the surface of the screen.

When a touching object such as a finger enters the grating, the light beam is blocked. The intelligent control system will detect the change in light loss and transmit a signal to the control system to confirm the X-axis and Y-axis coordinate values.

There are grooves, afraid of strong light, the machine is thicker and heavier, but the price is relatively low.

Capacitive screens have better sensitivity and accuracy, but they are slightly more expensive and cannot be made too large. Infrared touch screen technology is mature, especially for large-size touch all-in-one machines, which are all infrared screens of choice, and they have a long lifespan.