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The display screen can be divided into three types: normal temperature, wide temperature, and ultra-wide temperature according to the supported working temperature range. The normal temperature display supports the working temperature between 0 °C and 50 °C, and the wide temperature display supports the working temperature between -20 °C and +70 °C. ℃, the ultra-wide temperature display supports the working temperature between -40℃～+90℃. Usually, the display screen with good low-temperature performance will have poor high-temperature performance. The wider the operating temperature range, the higher the price. Users can choose suitable display products according to actual use conditions.

Polarizer is an important part of LCD screen. With the emergence of special full matching technology, polarizers are more and more widely used in LCD. What role does polarizer play in LCD?   Polarizer is widely used in LCD industry, and LCD needs to use polarizer. Polarizer and liquid crystal play an important role in development. In the production process, two pieces of ordinary tempered glass are printed on the circuit, and then glued together and folded. Then the liquid crystal is injected into the middle of the two sides of the glass, and the polarizer is pasted on the top and bottom of the glass.   The upper and lower glass should be pasted with polarizer, but pay attention to the direction. If the lower polarizer filters the x-direction light, the upper polarizer can only filter the y-direction light. If the upper polarizer filters out the light in the Y direction and the lower polarizer filters out the light in the X direction, the user can see nothing. Although the LCD works normally, the polarizer is not visible to the naked eye. Now the LCD color screen is generally only on the film, not on the film, the product technology innovation.   People who have studied physics should know what polarized light is. The imaging of LCD must rely on polarized light. All liquid crystals have two polarizers close to the liquid crystal glass to form a liquid crystal sheet with a total thickness of about 1 mm. Without

The LCD screen is the most intimate part of the touch all-in-one machine and the audience, and it is also the most critical part to improve the user experience. Therefore, the quality of the LCD screen directly determines the quality and application efficacy of the touch all-in-one machine. At present, in the touch all-in-one market, the most used LCD screens are plasma, LCD, and LED. The use period is usually between 6 and 10 years. Although we can extend the use period by replacing the lamp tube, but With the lamp tube replaced, a new problem has arisen because the liquid crystal in the screen will also age. In this case, the screen display of the touch all-in-one will inevitably affect the picture quality displayed by the touch all-in-one. The touch screen is a very important part of the touch all-in-one machine. It is an inductive liquid crystal display device that can receive input signals such as contacts. The current touch screens on the market mainly include resistive touch screens, capacitive touch screens, surface acoustic wave touch screens, and infrared touch screens. Each touch screen has its own advantages and disadvantages. You must combine your own use environment and the advantages and disadvantages of the touch screen to choose a touch screen suitable for your product. As the pillar supporting the normal operation of the control integrated machine, the quality of the power supply needs to be seen in the long-term use process. You can consult the supplier about the