Patent ID: 7468765
Filing Date: 2008-12-23
Classification: G02F

Abstract:
1. An electro-optical display device comprising an electro-optical substance layer, first and second substrates sandwiching therebetween said electro-optical substance layer, a plurality of pixels defined on one of said first and second substrates, each of said pixels having an opening area for passing therethrough incident light and being associated with a shielded element near said opening area, and a shield film pattern mounted on one of said first and second substrates for shielding said shielded element, said first substrate including a substrate body having a first refractive index, and first through third insulation films overlying said transparent substrate body and arranged in this order as viewed from said electro-optical substance layer, said first and third insulation films having refractive indexes substantially equal to said first refractive index, said second insulation film having a refractive index higher than said first refractive index, said first insulation film having a flat top surface parallel to a surface of said substrate body, said first and second insulation films defining a first interface therebetween, said second and third insulation films defining a second interface therebetween, said first and second interfaces having respective slope portions inclined from said flat top surface and disposed within said opening area, said slope portions having respective inner and outer edges as viewed from the center of the opening area, said shielded element having an inner edge located apart from said outer edge of said slope portion of said first interface in the direction away from said opening area by a distance X expressed by: where α and β are incidence angle and refracted angle, respectively, of the incident light at said first interface and T 1 is a thickness of said second insulation film.