Touch screens are one of the techniques that most captures the technical characteristics of multi-touching. Touch screens are the two-fold combination of input and output devices. Electronic products with touch screens do not need to rely on keyboards, mouse, etc. To control the machine, but simply to touch with our fingers, the machine can do a lot of related work. Here's a little piece that shows you how the touch screen works。
1. Surface shields
The most surface and upper layer of the touch screen is the protective shield of the touch screen against damage to the screen caused by fingernails during use。
Optical glue
This layer is an optical gel layer, which has a thickness standard, and usually the thicker the touch screen, the better the cell noise, the better the quality of the optic gel can achieve a higher finger sensory effect。
3. Sensory units and liners
The optic glue hides sensory units and liners, and when the thickness of the layer is higher, the less resistance in the unit area, the better the noise ratio, but if it is thinner, the better light. Therefore, the thickness of this layer requires a rigorous selection。
4. Cover
In the lower layer of the mask, i. E. The second layer, there will be an overlay, but not all touch screens will require it, and normally the thinr the cover will become more sensitive。
5. Monument and marking layers
This layer is located on the lower layer of the cover and its function is to hide the wiring and the lcd border, making the touch screen more beautiful, usually made from non-conductive media。
Optical glue
The sixth layer is also a layer of optical glue, and if the layer of optical glue reaches a certain thickness, the touch screen can have a better cell noise ratio。
7. Sensory units and liners
As with the fifth layer, this layer is the sensor unit and liner, which is identical to the material composition of the front, but if the sensor unit has a thick liner above the liner, a better match can be obtained and, conversely, a thin liner below。
8. Air and optical glue
The main function of the eighth layer is to make the screen more robust while reducing the loss of light。
9. Lcd screen
The lcd screen, which is the last layer of material, is actually a source of noise in the touch screen formed by the multi-point touch technique, whereas the noise comes from its back light, while the lcd pixels drive the control signal to produce different effects。
As multi-touch technology progresses and develops, future touch screens will also have more powerful features that will bring surprises to mobile phones and other electronic devices that are now unimaginable, so that multiple touches will also greatly affect our lives。
