Patent ID: 6493052
Filing Date: 2002-12-10
Classification: G02F

Abstract:
A reflective liquid crystal electro-optical device having a plurality of pixel electrodes formed by metal films and a liquid crystal layer placed on said pixel electrodes, said liquid crystal electro-optical device, comprising:a first dielectric film formed on said pixel electrodes; and a second dielectric film formed on said first dielectric film and having a higher refractive index than said first dielectric film; wherein provided that a film thickness and a refractive index of said first dielectric film are respectively dL and nL and a film thickness and a refractive index of said second dielectric film are respectively dH and nH,then said film thickness dL of said first dielectric film and said film thickness dH of said second dielectric film are adjusted to satisfy 350 nm&lE;&lgr;L&lE;550 nm, 380 nm&lE;&lgr;H700 nm or otherwise 450 nm&lE;&lgr;L&lE;650 nm, 300 nm&lE;&lgr;H23 450 nm (where &lgr;L=4nL dL, &lgr;H=4nH dH).