Liquid crystal display device

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 an alignment layer on each of said substrates;
• preparing a mask having a body portion and a plurality of light path changing portions arranged in said body portion corresponding to pixel pitches, said body portion of said mask has a first flat surface, a second surface on the opposite side from said first surface, and a plurality of cavities provided in said second surface, each cavity having first and second oblique surfaces arranged on either side of a vertical plane perpendicular to said first surface 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;
• regarding the substrate having said bus lines, putting said mask on said substrate so that said vertical plane between said first and second oblique surfaces is located at a position corresponding to said bus line;
• and
• irradiating the surface of said alignment layer of said substrate with ultraviolet light in the oblique direction, using said mask.

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 an alignment layer on each of said substrates;
• preparing a mask having a body portion and a plurality of light path changing portions arranged in said body portion corresponding to pixel pitches, said body portion of said mask has a first flat surface, a second surface on the opposite side from said first surface, and a plurality of cavities provided in said second surface, each cavity having first and second oblique surfaces arranged on either side of a vertical plane perpendicular to said first surface 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;
• regarding the substrate having no such bus lines, putting said mask on said substrate so that an end of said first oblique surface on said second surface and an end of said second oblique surface on said second surface are located at positions corresponding to said bus lines;
• and
• irradiating the surface of said alignment layer of said substrate with ultraviolet light in the oblique direction, using said mask.

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 an alignment layer on each of said substrates;
• preparing a mask having a body portion and a plurality of light path changing portions arranged in said body portion corresponding to pixel pitches, said body portion of said mask has a first flat surface, a second surface on the opposite side from said first surface, and a plurality of cavities provided in said second surface, first and second vertical planes being defined perpendicular to said first 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.