Patent ID: 8289256
Filing Date: 2012-10-16
Classification: G09G,G11C

Abstract:
1. A liquid crystal display comprising: a gate-off voltage generator including a temperature compensation unit which comprises a constant voltage output device and a temperature-sensing device and which outputs a gate-off voltage having a level which varies based on a change in ambient temperature; a clock generator which receives a gate-on voltage and the gate-off voltage and outputs a first clock signal and a second clock signal; a gate driver which receives the first clock signal and the second clock signal and outputs gate signals; and a plurality of pixels which turned on or off based on the gate signals, wherein the constant voltage output device outputs a temperature variable voltage having a value based on a voltage difference between a reference terminal and an input terminal of the constant voltage output device, the temperature-sensing device provides an input voltage having a value which varies based on the change in the ambient temperature to the constant voltage output device, a voltage difference between the reference terminal and the input terminal of the constant voltage output device is substantially constant, and the constant voltage output device comprises a Zener diode having a Zener breakdown voltage which is proportional to the change in the ambient temperature.