Light source and lighting device including the same
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United States of America Patent
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Jul 19, 2016
Grant Date -
May 29, 2014
app pub date -
Nov 25, 2013
filing date -
Nov 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
In a first aspect of the present inventive subject matter, a light source includes a substrate that includes a first electrode and a second electrode, and light-emitting elements arranged in an area and divided into groups each including a same number N of light-emitting elements that are electrically connected to one another in series in each group of the groups and that are electrically connected in series to the first electrode and to the second electrode of the substrate, and the light-emitting elements include a first light-emitting element that is configured to start emitting light when a voltage applied to the light-emitting elements exceeds a first voltage value, and the light-emitting elements except the first light-emitting element are configured to start emitting light when the voltage exceeds a second voltage value that is higher than the first voltage value. Also, a lighting device including the light source is disclosed.
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