Light emitting device
First Claim
1. A light emitting device comprising:
- a first lead frame comprising a light emitting element mounting portion, a first heat dissipation portion that extends from the light emitting element mounting portion in a first direction, second and third heat dissipation portions that extend from the light emitting element mounting portion in a second direction different from the first direction, and a first protrusion disposed perpendicular to, and extending from a middle portion of, at least one of the second heat dissipation portion and the third heat dissipation portion;
a second lead frame that extends in the second direction and is disposed between and spaced apart from the second and third heat dissipation portions;
a light emitting element that is disposed on the light emitting element mounting portion and electrically coupled to the first and second lead frames; and
a housing that encapsulates the first and second lead frames,wherein each of the second and third heat dissipation portions has a first width, and the second lead frame has a second width the same as or different from the first width.
1 Assignment
0 Petitions
Accused Products
Abstract
A light emitting device with improved heat dissipation is provided. The light emitting device includes a first lead frame, a second lead frame, a light emitting element and a housing. The first lead frame includes a light emitting element mounting portion, a first heat dissipation portion extending from the light emitting element mounting portion in a first direction, and second and third heat dissipation portions extending from the light emitting element mounting portion in a second direction opposite to the first direction. The second lead frame extends in the second direction and is disposed between and spaced apart from the second and third heat dissipation portions. The light emitting element is mounted on the light emitting element mounting portion and is electrically coupled to the first and second lead frames. The housing encapsulates the first and second lead frames. The second and third heat dissipation portions have a first width and the second lead frame has a second width the same as or different from the first width.
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Citations
23 Claims
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1. A light emitting device comprising:
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a first lead frame comprising a light emitting element mounting portion, a first heat dissipation portion that extends from the light emitting element mounting portion in a first direction, second and third heat dissipation portions that extend from the light emitting element mounting portion in a second direction different from the first direction, and a first protrusion disposed perpendicular to, and extending from a middle portion of, at least one of the second heat dissipation portion and the third heat dissipation portion; a second lead frame that extends in the second direction and is disposed between and spaced apart from the second and third heat dissipation portions; a light emitting element that is disposed on the light emitting element mounting portion and electrically coupled to the first and second lead frames; and a housing that encapsulates the first and second lead frames, wherein each of the second and third heat dissipation portions has a first width, and the second lead frame has a second width the same as or different from the first width. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A light emitting apparatus comprising:
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a transparent substrate; a plurality of light emitting devices that is disposed on the transparent substrate in a line type structure; a phosphor layer and a transparent resin that are arranged in a line type structure and enclose the plurality of light emitting devices; wherein each light emitting device of the plurality of light emitting devices comprises; a first lead frame comprising a light emitting element mounting portion, a first heat dissipation portion that extends from the light emitting element mounting portion in a first direction, second and third heat dissipation portions that extend from the light emitting element mounting portion in a second direction different from the first direction, and a first protrusion disposed perpendicular to, and extending from a middle portion of, at least one of the second heat dissipation portion and the third heat dissipation portion; a second lead frame that extends in the second direction and is disposed between and spaced apart from the second and third heat dissipation portions; a light emitting element that is disposed on the light emitting element mounting portion and electrically coupled to the first and second lead frames; and a housing that encapsulates the first and second lead frames, wherein each of the second and third heat dissipation portions has a first width, and the second lead frame has a second width the same as or different from the first width.
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23. A light emitting apparatus comprising:
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a transparent substrate; a plurality of light emitting devices disposed on the transparent substrate in a dot type structure; a plurality of phosphor layers and a plurality of transparent resins arranged in a dot type structure, wherein each phosphor layer of the plurality of phosphor layers and each transparent resin of the plurality of transparent resins enclose a corresponding light emitting device of the plurality of light emitting devices; wherein each light emitting device of the plurality of light emitting devices comprises; a first lead frame comprising a light emitting element mounting portion, a first heat dissipation portion that extends from the light emitting element mounting portion in a first direction, second and third heat dissipation portions that extend from the light emitting element mounting portion in a second direction different from the first direction, and a first protrusion disposed perpendicular to, and extending from a middle portion of, at least one of the second heat dissipation portion and the third heat dissipation portion; a second lead frame that extends in the second direction and is disposed between and spaced apart from the second and third heat dissipation portions; a light emitting element that is disposed on the light emitting element mounting portion and electrically coupled to the first and second lead frames; and a housing that encapsulates the first and second lead frames, wherein each of the second and third heat dissipation portions has a first width, and the second lead frame has a second width that is the same as or different from the first width.
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Specification