LED illuminating device comprising light emitting device including LED chips on single substrate
AssigneeSharp Kabushiki Kaisha
InventorsShinya Ishizaki, Makoto Agatani, Tomokazu Nada, Toshio Hata
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AssigneeSharp Kabushiki Kaisha
InventorsShinya Ishizaki, Makoto Agatani, Tomokazu Nada, Toshio Hata
Estimating the term…
A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.
An LED illuminating device comprising:
Dependencies are inferred from the claim text.