Patent ID: 6803973
Filing Date: 2004-10-12
Classification: G02F

Abstract:
A substrate for a reflection type liquid crystal display element, comprising:a transparent substrate; and a reflective mirror formed on top of said transparent substrates, wherein said reflective mirror comprises a predetermined number of high-refractive-index first transparent films composed of a first dielectric material and low-refractive-index second transparent films composed of a second dielectric material laminated alternately on said transparent substrate, and wherein either or both of said first transparent films and said second transparent films are arranged such that a film thickness thereof increases progressively or decreases progressively with distance from said transparent substrate, and a difference between maximum and minimum values of light reflectance is not more than about 10% at wavelengths corresponding to each of red, green, and blue components of visible light so that said reflective mirror is substantially free of ripples in an optical reflection spectrum or optical transmission spectrum across a visible region.