Lcds and methods for driving same
OwnerHeung Su CHO, Kyung Yul Kim +1inventors
InventorsHeung Su CHO, Kyung Yul Kim, Kyung Hun Lee
Life of this patent
Estimating the term…
Abstract
A liquid crystal display (LCD) and method for driving it that removes residual images from the display during power-off include an LCD panel that displays an image, a power-off residual image removal unit that detects a power-off state using pixel data and a driving voltage supplied from a main body through an interface and generates a residual image removal signal for a liquid crystal arrangement of the panel made when a voltage is not applied thereto, and a data driver outputting the residual image removal signal to remove a residual image from the LCD panel.
Claims11
A liquid crystal display (LCD), comprising:
- an LCD panel displaying an image;
- a power-off residual image removal unit that detects a power-off state using pixel data and a driving voltage supplied from a main body through an interface and generates a residual image removal signal for a liquid crystal arrangement made when a voltage is not applied thereto;
- and,
- a data driver outputting the residual image removal signal to the LCD panel so as to remove a residual image therefrom.
A method of driving an LCD, the method comprising:
- detecting a power-on or a power-off state;
- generating a high or low detecting signal in accordance with the power-on or power-off state using pixel data and a driving voltage supplied from a main body through an interface;
- generating a residual image removal signal for a liquid crystal arrangement made when a voltage is not applied thereto;
- supplying the residual image removal signal to a data driver;
- and,
- supplying the residual image removal signal to an LCD panel so as to remove a residual image therefrom.
Dependencies are inferred from the claim text.