Patent ID: 7782430
Filing Date: 2010-08-24
Classification: C09K,G02F,G03F

Abstract:
1. A method of treating an alignment layer, on which a plurality of pixel regions are defined, for conducting an alignment treatment of said alignment layer by irradiating ultraviolet light onto said alignment layer, said method comprising the steps of: providing said alignment layer, which is formed of polyamic acid and polyimide, said polyamic acid including a first diamine component and said polyimide including a second diamine component which is different from said first diamine component; disposing a photomask above said alignment layer; positioning said photomask so that a center portion of a first opening of said photomask is aligned with a center portion of a first pixel region of said alignment layer; disposing an ultraviolet light source obliquely above said photomask at a first position; conducting a first exposure by irradiating ultraviolet light from said ultraviolet light source at said first position; disposing, at a second position, said ultraviolet light source obliquely and symmetrically to said light source at said first position above said photomask; and conducting a second exposure by irradiating ultraviolet light from said ultraviolet light source at said second position.