SEMICONDUCTOR LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, LUMINAIRE, DISPLAY UNIT, TRAFFIC SIGNAL LAMP UNIT, AND TRAFFIC INFORMATION DISPLAY UNIT
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United States of America Patent
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Issued Date -
Nov 24, 2011
app pub date -
May 24, 2011
filing date -
May 24, 2010
priority date (Note) -
Abandoned
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Abstract
Provided is a light-emitting element in which two LED structures are dividedly formed on a rectangular substrate. The LED structures are each a semiconductor layer made by laminating an n-type semiconductor layer (a LED structure), an active layer (not shown), and a p-type semiconductor layer, and are respectively provided near both ends of a diagonal line of the upper surface of the substrate. On the upper surface of the substrate, two bonding electrodes each having a circular surface are also respectively formed near both ends of the other diagonal line, and two resistance elements each formed of the n-type semiconductor layer are respectively provided near two opposite sides of the substrate.
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