Today, the editor will focus on explaining the temperature change after the LCD screen is squeezed.
Some friends have encountered such a problem. The LCD screen works normally when it is about 20 degrees. Now it will be around 5 or 6 degrees outside in winter. There is a problem with the LCD screen, and it returns to normal after getting the high temperature. .
At the beginning of seeing this phenomenon, everyone's first reaction is that there is a problem with the temperature of the liquid crystal. According to the theory, the working temperature of the liquid crystal screen is -10-60 degrees, and this situation will not occur within the range.
Here, the editor will briefly say two points. First, to prevent moisture, the segment code screen display device is a low-voltage, micro-power product, usually placed at 5-30 degrees and humidity 65%.
If it is wet, it will cause the glass surface to conduct electricity, which will cause "crosstalk", which will make the segment code screen display abnormal.
2. Within the specified temperature range, the segment code screen LCD can only show a liquid crystal state within a certain temperature range. If the temperature exceeds a certain temperature, the liquid crystal state will disappear and become liquid, with a bright appearance and cannot work. It can recover by itself after the temperature is lowered.
3. On the contrary, if the temperature is too low, the liquid crystal will freeze into ice, causing permanent damage. If it is stored at a very low temperature for a long time or is subjected to vibration and shock, the segment code screen will also produce bubbles.
