Method for Determining Internal LCD Temperature

Abstract

Embodiments include a system and method for determining the temperature of the liquid crystal layer of a liquid crystal display. Because LCD performance is dependant on the temperature of the liquid crystal layer, performing particularly poorly in colder temperatures many LCD's are available with integral heaters. Determining the temperature of the liquid crystal layer of an LCD is imperative for appropriate thermal management, which in turn leads to more-optimal LCD lifetime. Exemplary embodiments relate to accurately determining the temperature of the liquid crystal layer of an LCD by employing the integrated heater layer as a temperature sensor. When the relationship between the temperature of the integral heater is known, and the integral heater is disposed very near the liquid crystal layer, then determining the resistance of the metal heater layer, allows for rapid, accurate determination of the average temperature of the liquid crystal layer, and correspondingly better thermal management.

Dependencies are inferred from the claim text.