Liquid crystal display device and method of driving the same
AssigneeLG Display Co., Ltd.
InventorByoung-Gwan Lee
Life of this patent
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Abstract
A liquid crystal display device includes: a liquid crystal panel; a temperature sensing means configured to measure a real-time temperature of the liquid crystal panel; a backlight unit configured to supply a light to the liquid crystal panel; a control unit configured to convert an image signal into an RGB signal and to convert a first dimming signal to a second dimming signal according to the real-time temperature; and an inverter unit configured to adjust the backlight unit using the second dimming signal.
Claims21
A liquid crystal display device (LCD), comprising:
- a liquid crystal panel;
- a temperature sensing means configured to measure a real-time temperature of the liquid crystal panel;
- a backlight unit configured to supply a light to the liquid crystal panel;
- a control unit configured to convert an image signal into an RGB signal and convert a first dimming signal to a second dimming signal according to the real-time temperature;
- and
- an inverter unit configured to adjust the backlight unit using the second dimming signal.
A method of driving a liquid crystal display (LCD) device, comprising:
- measuring a real-time temperature of the LCD device and inputting the real-time temperature to a control unit;
- comparing the measured real-time temperature and a pre-determined critical temperature over which a moving picture response time is saturated;
- converting an image signal to a RGB signal that is provided to a liquid crystal display panel and outputting a dimming signal to an inverter unit;
- analyzing gray levels of a frame of the image signal;
- displaying an image in the liquid crystal display panel using the RGB signal;
- and
- adjusting illumination of a backlight unit based upon the dimming signal input from the inverter unit.
Dependencies are inferred from the claim text.