Light beam direction control element and display apparatus
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United States of America Patent
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Mar 16, 2021
Grant Date -
Dec 28, 2017
app pub date -
Feb 23, 2015
filing date -
Feb 23, 2015
priority date (Note) -
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Abstract
In a light beam direction control element having: light transmitting regions made of light transmitting material arrayed on a substrate; and a light absorbing region made of light absorbent material filling a gap between the light transmitting regions, the light absorbing region restricting a light beam direction of light passing through the substrate, the light absorbing region extends in first and second directions that form a right angle to each other in a substrate plane. The light beam direction control element further has: a crossing portion where the light absorbing region extending in the first direction and the light absorbing region extending in the second direction cross each other to form an L or T shape; and at least one structure dividing the light absorbing region, located on a region which is other than the crossing portion and where the light absorbing region extends in the first or second directions.
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