Temperature compensation for LCD Display

Temperature compensation for LCD Display

An application Note

The optimal contrast setting for LCD displays varies with ambient temperature. For most
applications this variation in contrast is tolerable over the “normal” temperature range of 0°C to +50°C. Most LCD modules are available with an extended temperature range option
which allows the display to operate from-20°C to +70°C. The changes in contrast are NOT
usually tolerable over this wide a range of temperatures, which means a way of adjusting the contrast voltage as the ambient temperature changes must be provided

PDF =>
http://www.newhavendisplay.com/app_notes/Temperature_Compensation.pdf