Patent ID: 6061106
Filing Date: 2000-05-09
Classification: G02F

Abstract:
A liquid crystal display device comprising:first and second substrates;data bus lines and gate bus lines over said first substrate for defining a unit pixel, said data and gate bus lines being arranged in a matrix;a thin film transistor over said first substrate adjacent a cross point of said data and gate bus lines in said unit pixel;a passivation layer over said first substrate in said unit pixel, said passivation layer having a surface with at least one step;a pixel electrode over said passivation layer and said first substrate, said pixel electrode having at least one step corresponding to said at least one step of said passivation layer;a first alignment layer on said pixel electrode;a black matrix over said second substrate;a color filter layer on said black matrix and over said second substrate;an overcoat layer on said color filter layer, said overcoat layer having a surface with at least one step corresponding to said at least one step of said passivation layer;a counter electrode on said surface of said overcoat layer, said counter electrode having at least one step corresponding to said steps of said overcoat layer and said pixel electrode;a second alignment layer on said counter electrode; anda liquid crystal layer between said first and second alignment layers, said liquid crystal layer having a shape corresponding to said steps of said pixel and counter electrodes and including:a first portion having a first thickness; anda second portion having a second thickness smaller than said first thickness,wherein .DELTA.n.multidot.d1.gtoreq..lambda./2, where .DELTA.n is optical anisotropy of said liquid crystal, d1 is said first thickness of said liquid crystal layer, and .lambda. is a wavelength of transmitted light in said liquid crystal layer.