In the design of the LCD screen, the selection of what temperature range of liquid crystal materials will be considered. Usually, our TFT LCD screen work is divided into normal temperature 0-50 degrees, wide temperature -20-70 degrees, super-wide temperature -30-80 degrees, even customers will choose -40 degrees of extremely special materials to design. So, does the LCD still work at the limit temperature?

Actually, this question is a little ambiguity, as we know, for example, the wide temperature scope of work is - 20-70 degrees, so first of all, in less than 20 degrees below 0 and higher than 70 degrees of circumstances, the LCD panel will not be able to work in theory, but, if you haven't reached 70 degrees and the temperature of minus 20 degrees, but already very close to, can be said to be the limiting temperature, the LCD screen can work normally?

This problem is also a problem many customers will put forward, many customers use the wide temperature LCD, in the case of very low temperature, the word becomes very weak, and in the case of very high temperature, the word becomes very deep, how is this?

Principle of the operating temperature of the LCD screen

In fact, from the LCD screen goes a long way to explaining the principle, the LCD panel to display all sorts of design or pen, is due to the liquid crystal box of LCD in work, and liquid crystal, just as its name implies is liquid, must be affected by the environment, high-temperature liquid crystal will be fever, flow speed, the feedback is on display, color is very deep. Under the condition of low temperature, the liquid crystal will start to crystallize and flow slowly, and the color on the display will become very shallow. It is not that it cannot display normally, but the display time will be much slower than the normal temperature.

So everyone should be able to understand it, the operating temperature of the LCD screen, that is, in this temperature range it is able to work, not because of environmental factors do not display or do not refresh the situation.

Case study of working temperature of the LCD screen

Generally speaking, the wide temperature LCD screen, for example, starting from 5 degrees below zero and 50 degrees centigrade, the speed of the display will begin to change, to minus 20 degrees and 70 degrees above freezing, reached the limit temperature, feedback to the screen is no display or a dark state, already can't use, so liquid crystal often advise clients, if the actual temperature is close to the limit temperature, it must choose a wider temperature range of LCD screen.

Sinda has almost 20 years of industrial LCD production experience. SINDA HMI solutions are now widely used in a variety of industrial embedded areas of advanced civil products: such as home and office automation, medical equipment, beauty machines, vending machines, power control systems, and excavators.

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