Liquid crystal display

Abstract

A liquid crystal display having specific dispositions of pixels of a liquid crystal display so as to prevent the coupling defect and the stripe defect in high speed driving. The liquid crystal display includes a plurality of pixels arranged in a matrix shape, a switching element connected to each pixel, data lines and gate lines connected to the switching elements, and a data driver generating data voltages and applying the data voltages to the data lines. The data lines are disposed at both sides of the pixels in pairs, and data voltages of the same magnitude with different polarities are applied to the pairs of data lines. In this manner, preventing the coupling defect and the stripe defect, high speed driving can be performed.

Description

BACKGROUND OF THE INVENTION(a) Technical FieldThe present disclosure relates to a liquid crystal display.(b) Discussion of the Related ArtA conventional liquid crystal display (LCD) includes two display panels provided with pixel electrodes and a common electrode, and a liquid crystal layer interposed between the two panels and having dielectric anisotropy. The pixel electrodes are arranged in a matrix shape, and are connected to a switching element, such as a thin film transistor (TFT), so as to be sequentially applied with a data voltage row by row. The common electrode is formed on an entire surface of the display panel and is applied with a common voltage. The pixel electrodes, the common electrode, and the liquid crystal layer therebetween form a liquid crystal capacitor an overall circuit, and the liquid crystal capacitor is a basic unit constituent of a pixel along with a switching element connected thereto.In such a liquid crystal display, voltages are applied to the two ele...

AI Technical Summary

Benefits of technology

Exemplary embodiments of the present invention provide a liquid crystal display having the advantages of preventing the coupling defect and the stripe defect present in high speed driving of the display.

Problems solved by technology

There are two problems with the column inversion, however.

One of the problems is a coupling defect, and the other is a stripe defect.

The coupling defect is a phenomenon that the respective luminances of an upper portion and a lower portion of a liquid crystal panel assembly become different from each other since a data voltage of the same polarity is continuously applied for one frame because of parasitic capacitance generated by an overlap of the data lines and the pixel electrodes.

In order to solve this coupling problem, a ratio of the parasitic capacitance due to the overlap of the data line and the pixel electrode to an entire capacitance of the device should be less than or equal to 1%, and to achieve this is difficult.

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