The transparency of the touch panel of the touch cash register directly affects the visual effect of the touch screen cash register. All touch screen cash registers are touch panels made of multi-layer composite films. As far as transparency is concerned, its visual effect is not enough. It includes at least four characteristics: transparency, color distortion, reflectivity and clarity, but today’s Technology is no different than clear glass when it comes to touch the cash register touchpad.
The touch register is an absolute coordinate system, which is directly clicked according to the software application of the industry. Similar to the keyboard and mouse, the essential difference in the application of the positioning system is the intuitiveness. The feature of the absolute coordinate system of the touch screen cash register is that the touch screen cash register is a set of independent coordinate positioning system physically, and the data of each touch is converted into the coordinate x and y axis on the screen through calibration. In our daily life, the navigation we use is based on satellites and the latitude and longitude on the earth and then using the coordinates of the south latitude and the north latitude longitude to locate, which is the same as the touch positioning method of the touch screen cash register. However, it is required that the output data calculation of the same point is stable no matter what the coordinates of the touch screen cash register touch pad are.
If the touchpad of the touch screen cash register is inaccurate or drifted or delayed, there are many kinds of problems. For example, the touch pad of the four-wire touch screen cash register and the touch pad of the five-wire resistive touch screen cash register are much worse than the four-wire touch screen. The four-wire touch screen cash register touch There is a delay in the response of the sensitivity effect, if any one of the four wires is damaged, the touch screen cash register will not work. The five-wire resistive touch screen cash register will not fail to work because one of the wires is damaged.
There are three types of resistive touch screen cash register touch response delays:
The touch driver board of the touch screen cash register is inferior to the touch control driver board;
The motherboard, cpu, memory, and configuration of the touch screen cash register;
The touch screen cash register touch driver is not installed properly or does not have complete verification settings.
According to the working principle of the touch screen cash register, the touch panel of the touch screen cash register is divided into four types, namely resistive type, capacitive type, infrared and surface acoustic wave type.
A type of touch screen has its own advantages and disadvantages. It is necessary to understand different occasions and working environments and apply to that occasion environment.
1. Resistive touch screen cash register (resistive touch screen cash register includes four-wire touch screen cash register resistive screen, five-wire resistive touch screen cash register) The screen is not affected by dust, water vapor and oil, and can be used in a lower or higher temperature environment Use below. The touch screen cash register touch screen uses pressure sensing, which can be touched with any object. You can also operate the resistive touch screen with gloves.
2. Capacitive touch screen cash register capacitive screen uses the human body as an electrode of a capacitor element in principle. When there is a conductor close to the interlayer ITO working surface coupled with a capacitor of sufficient capacity, the current flowing away is It is enough to cause the malfunction of the capacitive screen. The capacitive touch screen only needs one time or no correction at all after production.
3. The infrared touch screen cash register is not afraid of water and pollution, and has the cost advantage of small size. It is suitable for industrial control products and personal portable products. It is afraid of scratches, has low light transmittance, and is slow at low temperature.
4. The sonic touch screen cash register is affected by dust, water droplets, oil stains, etc., and the reflector array needs to be cleaned regularly.