Color filter and liquid crystal display device using it, and manufacturing method thereof
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United States of America Patent
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Dec 13, 2005
Grant Date -
Sep 2, 2004
app pub date -
Jun 20, 2002
filing date -
Jun 29, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An object of the invention is to provide a color filter and a liquid crystal display device using it, which can acquire uniform color purity within a pixel. A color filter for coloring the first light ray L1 having a unidirectional optical path and the second light ray L2 having a bidirectional optical path for each pixel. This filter comprises: a step-forming layer of optically transmissive material, which can be supported by a base layer 20, and which is patterned for a pixel to form at least one recess-shaped portion having a bottom face 3b of a predetermined shape corresponding to an area wherein the first light ray L1 is caused to be transmitted and a wall face 3w of a predetermined height; and a coloring layer 1C deposited on the step-forming layer 30 and the recess-shaped portion for coloring the first and second light rays.
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