Liquid crystal display device of fringing field switch with protrusive electrode

Abstract

A liquid crystal display of fringing field switch type with electrode ledge consists of a color filtering baseplate, film transistor array baseplate and liquid crystal layer packaged between two said base plates. It is featured as forming said film transistor array base plate by a surface plate, a set of gate line and data line both being used to define a pixel region; forming said pixel region by a film transistor component, a common electrode, a pixel electrode and insulation film; forming ledge on said insulation film and forming pixel electrode on said ledge.

Description

technical field [0001] The invention relates to a fringe field switch (FFS) liquid crystal display (LCD), in particular to a fringe field switch liquid crystal display with electrode protrusions. Background technique [0002] Liquid crystal displays have been widely used in various fields. In-Plane Switch LCD (In-Plane Switch LCD, IPS-LCD for short), a liquid crystal display device (Fringe Filed Switch LCD, FFS-LCD for short) that uses lateral electric fields and fringe electric fields, the difference between FFS mode and IPS mode is that it has both wide viewing angle and high transmittance characteristics The advantages. [0003] In the prior art, a liquid crystal display is mainly composed of two glass substrates through which light passes. One of the substrates (lower substrate) is an array substrate for generating a moving electric field to control liquid crystals, and the other substrate (upper substrate) is a color filter substrate. The electrode array formed on the...

AI Technical Summary

Problems solved by technology

On the contrary, the liquid crystal molecules in the part 1c between adjacent pixel electrodes and the central part 1a of the pixel electrode are deflected as the liquid crystal moves in the edge part of the pixel electrode, but there is too much liquid crystal tilting in the central part 1a of the pixel electrode , so the liquid crystal in this part cannot be fully twisted, so the transmittance will be as image 3 The dotted circle indicates that it is lower than the edge part 1b of the pixel electrode, which leads to uneven transmittance distribution

In the existing technology, to make up for the above shortcomings, it is necessary to increase the number of backlight sources or brightness compensation films, etc., so it does not meet the current development direction of pursuing low cost.

Images