Patent ID: 8564527

Claim:
A driving voltage generating circuit, comprising: a switching voltage generator boosting an externally provided voltage to generate a switching driving voltage; a reference voltage generator having an operational amplifier receiving a sensing voltage indicating a temperature of the liquid crystal display via an inversion input terminal thereof and a power voltage via a non-inversion input terminal thereof, the operational amplifier amplifying a voltage difference between the sensing voltage and the power voltage to generate a reference voltage in inverse proportion to the temperature, the reference voltage from the operational amplifier being feedback to the inversion input terminal; a gate-on voltage generator to generate a gate-on voltage in response to the switching driving voltage and the reference voltage and to provide the gate-on voltage to a gate driver; and a power voltage generator rectifying the switching driving voltage to generate the power voltage having a constant voltage level and providing the generated power voltage to a source driver and the reference voltage generator.