Light-emitting device, light source and method of manufacturing the same
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United States of America Patent
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Oct 1, 2013
Grant Date -
Jun 23, 2011
app pub date -
Dec 20, 2010
filing date -
Dec 22, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A light-emitting device includes a light source including an element mounting substrate, an LED element mounted thereon by flip-chip connection and a sealing portion for sealing the LED element on the element mounting substrate, and a light guide plate including a housing hole for housing the light source. The housing hole extends from one surface side to another surface side of the light guide plate and an area of an inner surface thereof on which light is incident from the light source is parallel to a thickness direction of the light guide plate. The light source is housed in the housing hole so that the element mounting substrate is located on the other surface side of the light guide plate, emits light toward the one surface side of the light guide plate in the housing hole and the inner surface side of the housing hole, and has an optical axis parallel to the thickness direction of the light guide plate. A solid angle of the inner surface of the housing hole with respect to the center of an upper surface of the light source is not less than 4.44 steradians.
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