Originally Posted by SyilAmerica  We do have units in production environments that run multiple shifts. I have noticed when I run a program the last over for five hours that the LCD back does get a little dark from heat. However, they steal continue to function so I don't believe that it is an issue.
Also, the LCD is in the same chamber at the ventilation and access holes are remote from each other so I don't think there is much he transfer from the motor compartment to the LCD. |
Standard LCD displays are made to operate in the range of 0°C to +50°C, working within this range does not mean that the LCD display is going to be readable across the that temperature range, LCD contrast is temperature dependent, and the LCD driver circuit has to be designed to compensate for this problem. Working over the maximum limit will deteriorate the display, storage maximum limit is about 60°C. Repeated exposure to over 50-60°C will make the blackening irreversible in all or part of the LCD display.
Go to
http://www.pacificdisplay.com/lcd_oper_basics.htm for a basic explanation of how an LCD display works.