Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate
2006-12-01
2011-11-15
Caley, Michael (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
C349S157000
Reexamination Certificate
active
08059253
ABSTRACT:
A color filter substrate in which the heights of columnar spacers can be arbitrarily controlled by a simple manufacturing process, and a liquid crystal display device including such a color filter substrate are provided. The color filter substrate includes a transparent substrate, a light-shield layer and a color filter layer provided on the transparent substrate, columnar spacers sticking out of the transparent substrate, and a protrusion to control the orientation of liquid crystal molecules. The color filter layer includes first, second and third color filters transmitting light rays in different colors. The columnar spacers include first and second types of columnar spacers with different heights. Each spacer of the first type includes a first lower structure, including at least one layer made of the same film as at least one of the first, second and third color filters and the light-shield layer, and a first upper structure, including a layer made of the same film as the protrusion. Each spacer of the second type includes a second lower structure, including at least one layer made of the same film as at least one of the first, second and third color filters and the light-shield layer, and a second upper structure, including a layer made of a resin.
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Official communication issued in the International Application No. PCT/JP2006/324095, mailed on Mar. 6, 2007.
English translation of official communication issued in counterpart International Application No. PCT/JP2006/324095, mailed on Jun. 19, 2008.
Shohraku Akihiro
Tokuda Tsuyoshi
Tsubata Toshihide
Caley Michael
Keating & Bennett LLP
Sharp Kabushiki Kaisha
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