A liquid crystal display (LCD) is a thin, flat electronic visual display that uses the light modulating properties of liquid crystals (LCs). LCs do not emit light directly. Each pixel of an LCD typically consists of a layer of molecules aligned between two transparent electrodes, and two polarizing filters, the axes of transmission of which are (in most of the cases) perpendicular to each other.
That was a lot of technical stuff you probably don’t care about. What you do need to know about is sun and heat on your credit card terminal can make for a bad day when a customer us ready to pay. So we want to care for credit card terminals properly. That means keeping direct sunlight off the LCD display. If your LCD display is exposed to sunlight, it can heat up, turn black and become unreadable. Typically this is not a permanent condition. Cooling it down will generally return your display to normal. One of our creative merchants placed a hot terminal in the freezer for a few minutes, however we don’t recommend that. Just take it out of the heat and in a few minutes it will cool down and be readable again.
We all enjoy summer, but remember that sunlight creates heat for your electronics so keep them out of the direct sun if possible and you will find your equipment operates much better.