Apparatus and method for driving liquid crystal display device

A liquid crystal display and driver technology, used in static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of unstable synchronization signal frequency, unstable image display, and defective image images.

Inactive Publication Date: 2007-10-03
LG DISPLAY CO LTD
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0005] However, when switching the frame frequency, the frequency of the sync signal is unstable, thereby causing a malfunction of the timing controller
As a result, an unstab

Method used

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  • Apparatus and method for driving liquid crystal display device
  • Apparatus and method for driving liquid crystal display device
  • Apparatus and method for driving liquid crystal display device

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Embodiment Construction

[0042] Preferred embodiments of the invention will now be described in detail, with the accompanying drawings illustrating examples of the invention. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same and like parts.

[0043] An apparatus and method for driving an LCD device according to the present invention will be described below with reference to the accompanying drawings.

[0044] FIG. 1 shows an apparatus for driving an LCD device according to the present invention.

[0045] As shown in FIG. 1, the apparatus according to the present invention includes an LCD unit and a graphics system 150 provided inside a computer system for controlling the LCD unit. The LCD unit includes: a liquid crystal display part 110 for displaying an image; a data driver 120 for driving the data lines (DL1 to DLm) of the liquid crystal display part 110; a gate driver 130 for driving the gate lines (GL1 to GLn) of the liquid crystal display par...

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Abstract

An apparatus and method for driving a liquid crystal display (LCD) device is disclosed, to prevent error of a timing controller and to prevent the defective image on a frequency conversion, the apparatus comprising a liquid crystal display part to display images, a driver to drive the liquid crystal display part, a graphic system to output frequency-conversion prediction information in accordance with a frequency-conversion signal, and perform frequency conversion of a plurality of synchronizing signals, and a timing controller to control the driver to display video data according to a previous frame during the frequency conversion, in response to the frequency-conversion prediction information.

Description

[0001] This application claims the benefit of Korean Patent Application No. P2006-028981 filed on March 30, 2006 and P2006-081519 filed on Aug. 28, 2006, both of which are hereby incorporated by reference patent application, as fully set forth herein. technical field [0002] The present application relates to an apparatus and method for driving a liquid crystal display (LCD) device for preventing a timing controller from erroneously operating at the time of frequency conversion, thereby preventing defective video images. Background technique [0003] In general, a liquid crystal display (LCD) device displays various images according to light transmittance controlled by driving liquid crystals. The LCD device includes a liquid crystal display part that displays images and a driving circuit that controls the liquid crystal display part. In more detail, the liquid crystal display component includes: a plurality of sub-pixels forming a pixel matrix; a plurality of thin film tr...

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Application Information

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IPC IPC(8): G09G3/36G09G3/20G02F1/133
CPCG09G3/3696G09G5/363G09G2310/06G09G2310/08G09G2360/12H03K5/00006
Inventor 尹相昌金宰圣
Owner LG DISPLAY CO LTD
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