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Liquid crystal display device and driving method thereof

A liquid crystal display and device technology, which is applied in the field of liquid crystal display devices and their driving, and can solve the problems of poor brightness and reduced image quality.

Active Publication Date: 2009-07-22
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] As a result, a difference in luminance between the pixels of the first gate line GL1 and the pixels of the other gate lines GL2 to GLn is generated, thereby lowering the image quality.

Method used

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  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof

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Embodiment Construction

[0031] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. These embodiments introduced later are provided as examples in order to convey the spirit thereof to those of ordinary skill in the art. Therefore, these embodiments may be embodied in different forms, and thus are not limited to these embodiments described here. Also, in the drawings, the size and thickness of devices are exaggerated for convenience. Wherever possible, the same reference numbers will be used throughout the specification, including the drawings, to refer to the same or like parts.

[0032] Figure 5 is a block diagram showing a timing controller of an LCD device according to an embodiment of the present invention. refer to Figure 5, the timing controller includes a frame detector 300, a start signal & first gate clock signal generator 300a, and second to fourth gate clock signal generators 300b to 300d.

[0033] The...

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Abstract

A driving method of an LCD device adapted to improve the quality of pictures is disclosed. The driving method includes: deriving a frame detection signal from a data enable signal and a data clock signal; simultaneously deriving a start signal and a first gate clock signal from the frame detection signal and the data clock signal; and deriving a second gate clock signal from the first gate clock signal and the data clock signal. The first gate clock signal is identical with the start signal in a start time point of enable interval.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2007-0135840 filed on December 21, 2007, which is hereby incorporated by reference in its entirety. field of invention [0002] The invention relates to a liquid crystal display device, in particular to a liquid crystal display device suitable for improving image quality and a driving method thereof. Background technique [0003] With the development of the information society, flat panel display devices that can be used to display information have been widely developed. These flat panel display devices include liquid crystal display (LCD) devices, organic electroluminescent display devices, plasma display devices, and field emission display devices. Among the above-mentioned display devices, the LCD device has obvious advantages because the liquid crystal display device is lightweight and thin, and can realize low power consumption and a full-color scheme. Accordingly, LCD devices have been widel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G11C19/28G09G2310/0286G09G2320/0233G09G3/36G11C19/00H03K19/00G02F1/133
Inventor 李相勋金花英金钟佑
Owner LG DISPLAY CO LTD