Liquid crystal display

Abstract

A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a common electrode facing the pixel electrode. The first subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to each other, the first oblique edges making an oblique angle with the first edge and the second edge and meeting the first edge. The second subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to or substantially perpendicular to the first oblique edges of the first subpixel electrode, the first oblique edges of the second subpixel electrode meeting the first edge of the second subpixel electrode. The first edge of the first subpixel electrode is adjacent to the first edge of the second subpixel electrode, and a length of the first edge of the first subpixel electrode is different from a length of the first edge of the second subpixel electrode. The first oblique edges of the first subpixel electrode are offset from the first oblique edges of the second subpixel electrode.

Description

technical field [0001] The invention relates to a liquid crystal display. Background technique [0002] Liquid crystal displays (LCDs) are one of the most widely used flat panel displays. An LCD may include two panels on which pixel electrodes and common electrodes (generally referred to as 'field generating electrodes') are provided, and a liquid crystal (LC) layer interposed between the two panels. The LCD generates an electric field within the LC layer by applying a voltage to the field generating electrodes. When an electric field is applied, the LC molecules in the LC layer tilt at a certain angle relative to the axis perpendicular to the plate according to the strength of the electric field. LCDs display images by controlling the strength of an electric field that determines the orientation of LC molecules to adjust the polarization of incident light. [0003] The LCD also includes switching elements connected to the pixel electrodes and a plurality of signal lines ...

AI Technical Summary

Problems solved by technology

However, in the above structure, a strong lateral electric field is generated near the edge of the pixel electrode

The lateral electric field confuses the orientation of the LC molecules, which creates texture and light leakage as well as prolonging the response time

[0007] Also, VA type LCDs have poor side visibility compared to front visibility

For example, in conventional LCDs provided with cutouts in the field generating electrodes, the brightness of the display is enhanced toward the sides, and, in a worse case, the brightness difference between high gray levels is almost zero resulting in imperceptible image

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