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US 8,297,793 B2Granted
Light emitting device and method of manufacturing the same
AssigneeLG Innotek Co., Ltd.
InventorWan Ho Kim
Life of this patent
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Abstract
Disclosed is a light emitting device and a method of manufacturing the same. The light emitting device comprises a substrate comprising a cavity, a multi-color light emitting unit on a first region of the cavity, and a white light emitting unit on a second region of the cavity.
Claims20
A light emitting device comprising:
- a substrate comprising a cavity surrounded by a side surface;
- a multi-color light emitting unit on a first region of the cavity;
- and
- a white light emitting unit on a second region of the cavity,
- wherein the side surface is coated with at least one of Ag and Al,
- wherein a height of the cavity from a bottom surface of the first region is different from a height of the cavity from a bottom surface of the second region, and
- wherein a first plurality of lead frames connected to the multi-color light emitting unit is disposed on the first region of the cavity and a second plurality of lead frames connected to the white light emitting unit is disposed on the second region of the cavity, and at least one of the first plurality of lead frames and at least one of the second plurality of lead frames are electrically connected through a via hole.
4 more elements
A light emitting device comprising:
- a substrate comprising a cavity surrounded by a side surface;
- a white light emitting unit on a second region of the cavity and comprising at least one blue LED and a fluorescent substance;
- and
- a multi-color light emitting unit on a first region of the cavity and comprising at least one red LED, green LED and blue LED,
- wherein the side surface is coated with at least one of Ag and Al,
- wherein a height of the cavity from a bottom surface of the first region is different from a height of the cavity from a bottom surface of the second region, and
- wherein a first plurality of lead frames connected to the multi-color light emitting unit is disposed on the first region of the cavity and a second plurality of lead frames connected to the white light emitting unit is disposed on the second region of the cavity, and at least one of the first plurality of lead frames and at least one of the second plurality of lead frames are electrically connected through a via hole.
4 more elements
A method of manufacturing a light emitting device, the method comprising the steps of:
- forming a cavity in a substrate, wherein the cavity is surrounded by a side surface;
- coating the side surface with at least one of Ag and Al;
- mounting a red LED, a green LED and a blue LED on a first region of the cavity;
- mounting a blue LED on a second region of the cavity;
- forming a second mold member, to which a fluorescent substance is added, on the second region of the cavity;
- and
- forming a first mold member on the first region of the cavity after the second mold member has been cured,
- wherein a height of the cavity from a bottom surface of the first region is different from a height of the cavity from a bottom surface of the second region, and
- wherein a first plurality of lead frames is disposed on the first region of the cavity and a second plurality of lead frames is disposed on the second region of the cavity, and
- electrically connecting at least one of the first plurality of lead frames and at least one of the second plurality of lead frames through a via hole.
7 more elements
Dependencies are inferred from the claim text.