Light reflector for use in a reflective-type liquid-crystal display
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United States of America Patent
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Jul 18, 2000
Grant Date -
N/A
app pub date -
May 18, 1999
filing date -
May 19, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A light reflector for use in a reflective-type liquid-crystal display has a prism sheet, which is made from a transparent base material, the front surface of which has formed on it a light-diffusing layer that diffuses incident light and the reverse side of which has a plurality of unit prisms that are arranged in a striped arrangement and made of an optically transparent resin, these prisms extending in a vertical direction, and having a cross-section that is the shape of a scalene triangle, and also has a light-reflecting sheet that is in opposition to the group of prisms on the rear surface of the prism sheet, the opposing surface of this light-reflecting sheet reflecting transmitted light and being disposed in parallel to the prism sheet, so that incident light and exiting light are not mutually parallel, thereby achieving both a wide viewing angle and a bright display.
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