Patent ID: 7420638
Filing Date: 2008-09-02
Classification: G02F

Abstract:
1. A method of fabricating a liquid crystal display device comprising a pair of opposed and spaced substrates, an alignment layer formed on one of said substrates, an alignment layer formed on the other substrate, a plurality of bus lines provided on one of said substrates, and a liquid crystal inserted between said pair of substrates, said method comprising the steps of: forming said alignment layer on each of said substrates; preparing a mask having a body potion and a plurality of light path changing portions arranged in said body portion corresponding to pixel pitches, said body portion of said mask having a first flat surface, a second surface on the opposite side from said first flat surface, and a plurality of cavities provided in said second surface, first and second vertical planes being defined perpendicular to said first flat surface and perpendicular to each other, each cavity having first and second oblique surfaces arranged on either side of the first vertical plane to diverge in the direction from said first surface toward said second surface, and third and fourth oblique surfaces arranged on either side of the second vertical plane to diverge in the direction from said first surface toward said second surface, said light path changing portions being formed by said cavities and a material contained in said cavities; putting said mask on said substrate; and irradiating the surface of said alignment layer of said substrate with ultraviolet light in the oblique direction, using said mask; wherein said cavity has a saw-toothed shape having a trapezoidal cross-section.