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US 10,167,566 B2Granted
Substrate for light emitting device, light emitting device, and method for manufacturing substrate for light emitting device
AssigneeSharp Kabushiki Kaisha
InventorsMasahiro Konishi, Shin Itoh
Life of this patent
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Abstract
A substrate (5) in which a surface of an aluminum base (10) other than a surface on which an insulating thin film layer (17) is formed is covered with a protective layer (19) which is an aluminum anodic oxide film.
Claims13
A substrate for a light emitting device in which an insulating reflecting layer that reflects light from a light emitting element is provided on a front surface of a base including aluminum, wherein
- a rear surface of the base is covered with an aluminum anodic oxide film,
- an electrode pattern which is electrically connected to an electrode of the light emitting element is provided under the reflecting layer,
- a terminal portion of the electrode pattern is exposed on a front surface of the reflecting layer,
- a side surface of the base is covered with the aluminum anodic oxide film, the aluminum anodic film is made of anodic oxide-treated material, and
- the reflecting layer is a thin film layer which substantially covers an entirety of the electrode pattern except for the terminal portion.
2 more elements
A substrate for a light emitting device in which an insulating reflecting layer that reflects light from a light emitting element is provided on a front surface of a base including aluminum, wherein
- a rear surface of the base is covered with an aluminum anodic oxide film,
- an insulating thermally conductive layer having a higher thermal conductivity than that of the reflecting layer is between the base and the reflecting layer,
- an electrode pattern which is electrically connected to an electrode of the light emitting element is provided under the reflecting layer, and is in contact with an upper portion of the thermally conductive layer or is provided under the thermally conductive layer,
- a terminal portion of the electrode pattern is exposed on a front surface of the reflecting layer,
- a side surface of the base is covered with the aluminum anodic oxide film,
- the aluminum anodic film is made of anodic oxide-treated material, and
- the reflecting layer is a thin film layer which substantially covers an entirety of the electrode pattern except for the terminal portion.
4 more elements
Dependencies are inferred from the claim text.