Patent ID: 6115089
Filing Date: 2000-09-05
Classification: G02F

Abstract:
An active-matrix type liquid crystal display device comprising:an array substrate, said array substrate including:an insulation substrate;pixel electrodes formed on said insulation substrate;signal lines provided on said insulation substrate;scanning lines crossing said signal lines;transistors provided in the vicinities where said signal lines cross said scanning lines, said transistors including source, drain, and gate electrodes;said pixel electrodes being connected between said transistors and a reference potential point; andstorage capacitor lines; anda counter substrate provided opposite to said array substrate, said counter substrate including a counter electrode; anda liquid crystal layer held between said pixel and counter electrodes;wherein said pixel electrodes and storage capacitor lines are provided to define storage capacitance Cs;said counter electrodes, said pixel electrodes, and said liquid crystal layer define liquid crystal capacitance CLc;said signal lines and pixel electrodes define parasitic capacitance Cpsig;said gate and source electrodes define parasitic capacitance Cgs; anda ratio of the parasitic capacitance Cpsig to the total capacitance Cpall consisting of the sum of (i) the storage capacitance Cs, (ii) the liquid crystal capacitance CLc, (iii) the parasitic capacitance Cpsig and (iv) the parasitic capacitance Cgs, is 4% or less.