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Method of providing data, liquid crystal display device and driving method thereof

A technology of liquid crystal display devices and data drivers, applied in static indicators, nonlinear optics, optics, etc., to achieve the effect of reducing manufacturing costs

Inactive Publication Date: 2007-02-07
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The black screen data voltage is generated from the inverted image data voltage

Method used

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  • Method of providing data, liquid crystal display device and driving method thereof
  • Method of providing data, liquid crystal display device and driving method thereof
  • Method of providing data, liquid crystal display device and driving method thereof

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Embodiment Construction

[0038] Reference will now be made in detail to an LCD driving device, an example of which is illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0039] image 3 Waveform diagrams including the charge share voltage are given. The charge sharing voltage exists between the positive (+) data voltage and the negative (-) data voltage in the inversion driving condition. The charge sharing voltage can be generated from an external source or can be generated from an average value between adjacent data voltages.

[0040] In the inversion driving condition, positive data voltages are converted into negative data voltages, and negative data voltages are converted into positive data voltages. The inversion driving condition is implemented by repeatedly performing the switching operation described above. However, there is a huge voltage difference in the conversion of the posi...

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Abstract

A method of providing data, an LCD and a driving method are disclosed. An image data voltage is inverted. A charge share voltage between the inverted image data voltages is used as a black data. The image data voltage and the black data voltage are applied in sequence, wherein the charge share voltage between the inverted image data voltages is applied as the black data voltage. Thus, motion blurring may be suppressed and manufacturing cost may be reduced because it is unnecessary to generate the black data voltage separately. Also, the typical driving frequency is used even if the black data voltage is used, to reduce cost.

Description

technical field [0001] The invention relates to a liquid crystal display device, in particular to a method for providing data capable of avoiding motion blur, a liquid crystal display device and a driving method thereof. Background technique [0002] Generally, a liquid crystal display device (LCD) uses each pixel in a liquid crystal panel as an optical switch to selectively transmit light generated from a light source to display images. Comparing an LCD with a related art cathode ray tube (CRT) which controls brightness by adjusting the intensity of electron beams, whereas an LCD controls the brightness of an image by adjusting the intensity of light generated from a light source. [0003] At the same time, due to the rapid development of image technology, not only static images, today's technology enables LCD to display dynamic images. [0004] However, displaying high-quality moving images on an LCD is not easy. That is, since the reaction speed of liquid crystal is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/36
CPCG09G3/3614G09G2320/0261G09G3/3648G09G2310/02G09G2310/061G09G3/36G09G3/20G02F1/133
Inventor 李周映
Owner LG DISPLAY CO LTD
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