US 4,097,131 A · Reflective type liquid crystal display

Abstract

In a reflective type liquid crystal display comprising a rear support plate carrying a segmented reflective electrode in a predetermined display region, a front support plate carrying a transparent electrode of indium oxide at least in a region corresponding to the reflective electrode and a reflective coating of aluminum in a region except the region corresponding to the reflective electrode, and a liquid crystal composition sandwiched between the two support plates, there is provided an intermediate layer made of a material selected from the group consisting of magnesium fluoride, thorium fluoride, silicon dioxide, silicon monoxide, cerium oxide and magnesium oxide intermediate the indium oxide transparent electrode deposited on at least the region corresponding to the reflective electrode and the aluminum reflective coating deposited on the region except the region corresponding to the reflector electrode.

Claims4

Dependent claims

A reflective type liquid crystal display comprising:

first and second support plates;
a segmented reflective electrode deposited on said first support plate;
a transparent electrode deposited on said second support plate;
a reflective coating deposited on said second support plate in a region except the region corresponding to said reflective electrode;
an intermediate layer of insulator material interposed between said transparent electrode and said reflective coating, said intermediate layer being capable of preventing a chemical reaction about the interface between said transparent electrode and said reflective coating;
and
a liquid crystal composition sandwiched between said first and said second support plates.

4 more elements

Dependencies are inferred from the claim text.

Reflective type liquid crystal display

Life of this patent

Reflective type liquid crystal display

Life of this patent

Abstract

Claims4