US 8,619,015 B2 · Liquid crystal display and method of driving the same

Abstract

A liquid crystal display with improved display quality and a method of driving the same include a timing controller which receives a main clock signal and outputs a first clock generation control signal and a second clock generation control signal which has a variable duty ratio, a clock generator which receives the first clock generation control signal and the second clock generation control signal and outputs a first clock signal and a second clock signal which have variable duty ratios and opposite phases, a gate driver which receives the first clock signal and the second clock signal and outputs gate signals which have variable duty ratios, and a liquid crystal panel including a plurality of pixels which are turned on according to the gate signals and display an image.

Claims24

Dependent claims

A liquid crystal display comprising:

a timing controller which receives a main clock signal and outputs a first clock generation control signal and a second clock generation control signal which has a variable duty ratio based on a frequency of the main clock signal;
a clock generator which receives the first clock generation control signal and the second clock generation control signal having a variable duty ratio and outputs a first clock signal and a second clock signal, the first clock signal and the second clock signal having different phases and duty ratios which are variable;
a gate driver which receives the first clock signal and the second clock signal and outputs gate signals which have variable duty ratios;
and
a liquid crystal panel comprising a plurality of pixels which turn on based upon the gate signals and display an image,
wherein the duty ratio is duration of time for which a signal is maintained at a high level in one period of the signal.

3 more elements

A method of driving a liquid crystal display, the method comprising:

receiving a main clock signal and outputting a first clock generation control signal and a second clock generation control signal, a duty ratio of which varies based on a frequency of the main clock signal;
receiving the first clock generation control signal and the second clock generation control signal and outputting a first clock signal and a second clock signal which have variable duty ratios and different phases;
receiving the first clock signal and the second clock signal and outputting gate signals which have variable duty ratios;
and
turning on pixels according to the gate signals to display an image, wherein the duty ratio is duration of time for which a signal is maintained at a high level in one period of the signal.

2 more elements

Dependencies are inferred from the claim text.

Liquid crystal display and method of driving the same

Life of this patent

Liquid crystal display and method of driving the same

Life of this patent

Abstract

Claims24