Patent ID: 6893688

Claim:
A method for fabricating an electro-optical device comprising the steps of: providing a glass substrate; forming an electrode pattern of ITO on a surface of said substrate; cleaning said surface of said substrate including said electrode pattern with ultrasonic waves and water after forming said electrode pattern; forming a coupling layer on said surface of said substrate after cleaning said surface of said substrate; irradiating ultraviolet radiation onto a surface of said coupling layer after forming said coupling layer; depositing an insulating film consisting of an inorganic oxide on said coupling layer irradiated with the ultraviolet radiation after irradiating said surface of said coupling layer; depositing an alignment layer on said insulating film after depositing said insulating film on said coupling layer; applying a rubbing process to a surface of said alignment layer after depositing said alignment layer; irradiating said surface of said alignment layer with ultraviolet radiation after applying said rubbing process to said alignment layer to increase wettability of said alignment layer; and ultrasonically cleaning said alignment layer with pure water after irradiating said alignment layer.