Method for manufacturing a reflection plate
AssigneeNEC LCD Technologies, Ltd.
InventorsAkio KOBAYASHI, Yasuki KUDO, Kenichirou NAKA
Life of this patent
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Abstract
It is to suppress the interference of the reflected light easily and securely even in a highly fine liquid crystal display device. The reflection plate comprises recessed or protruded parts and a reflection film formed over the recessed or protruded parts. A unit shape of the recessed or protruded parts is a polygon, an arbitrary point other than a centroid of the polygon that constitutes the recessed or protrude part is placed at a position that meets with an orderly-mannered lattice point as an origin, and each of the unit-shape polygons is arranged at a position that is rotated randomly with respect to the origin.
Claims6
A manufacturing method of a reflection plate which includes recessed or protruded parts and a reflection film formed over the recessed or protruded parts, wherein
- a photosensitive organic film is exposed, developed, and baked by using a mask that is formed in such a manner that:
- a polygon for forming the recessed or protruded parts is set as a unit shape;
- an arbitrary point other than a centroid of the polygon that constitutes the recessed or protrude part is taken as an origin, and the unit shape is placed such that the origin meets with an orderly-mannered lattice point;
- and each of the unit-shape polygons is arranged while being rotated randomly with respect to the origin, and
- the reflection film is formed over the recessed or protruded parts which have been exposed, developed, and baked.
Dependencies are inferred from the claim text.