In the 21st century, the development of infrared touch screens has grown by leaps and bounds, and has performed well in many fields. The infrared touch screen uses infrared technology to detect and sense the human body or other objects to achieve positioning and response. Compared with traditional resistive touch screens, capacitive touch screens, sonic touch screens, etc., the advantages of infrared touch screens are outstanding. Of course, there are also some shortcomings. Let's take a look at them below.
1. It works very well on flat panel displays. The infrared technology touch screen uses the same wavelength of the infrared emission tube and the infrared receiving tube to be distributed in the same plane to obtain the monitoring result, so the advantage of using the liquid crystal display on the flat display is very amazing.
2. Good use characteristics. The touch is very light, and there is no special requirement for the touch body. The human body finger or any object that blocks the infrared light can be used as the touch body.
3. High adaptability. It is immune to interference from current, voltage and static electricity, and can be effectively explosion-proof, dust-proof, and adaptable to harsh environmental conditions.
4. High stability. It does not change drifts due to changes in time, location, and environment.
5. Long service life. It lasts for a long time, is scratch-resistant, and has a long working time for touch.
1. The effect on the spherical display is not good. Because the infrared grating matrix required for the infrared touch screen needs to be guaranteed to be on the same plane, in the use of the spherical display screen, when the working plane of the truly inductive touch has a large interval from the curved display screen, especially at the corner, the infrared touch screen Accuracy and sensitivity will be lower.
2. Vulnerable to strong infrared interference. Such as remote control, high temperature objects, incandescent lamps, sun rays, etc.
3. It is susceptible to interference from strong electromagnetic objects, such as transformers.