Lighting device
AssigneeLG Innotek Co., Ltd.
InventorsJung Ju LEE, Sa Rum HAN
Life of this patent
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Abstract
A lighting device may include a substrate, light sources, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. A surface of the resin layer has a flat upper surface and a plurality of side surfaces on an outer side of the flat upper surface. At least one of the plurality of side surfaces of the resin layer has a curved surface. The phosphor layer has a first region disposed on the flat upper surface of the resin layer and a second region disposed on the plurality of side surfaces of the resin layer. Light generated from the plurality of light sources is emitted through the flat upper surface and the curved surface of the resin layer.
Claims20
A lighting device comprising:
- a substrate;
- three of more light sources disposed in a first direction on the substrate;
- a resin layer disposed on the substrate and the light sources;
- and
- a transparent insulating layer disposed on the resin layer,
- wherein the first direction is a long axis direction of the substrate,
- wherein a second direction orthogonal to the first direction is a short axis direction of the substrate,
- wherein a surface of the resin layer has an upper surface and a plurality of side surfaces,
- wherein both side surfaces of the plurality of side surfaces in the first direction have curved surface,
- wherein the transparent insulating layer has a first region disposed on the upper surface of the resin layer and a second region disposed on the both side surfaces of the resin layer,
- wherein the second region extends from both ends of the first region of the transparent insulating layer to the substrate in a curved surface,
- wherein the light sources include a first light source located at an outermost side,
- wherein the curved surface of the resin layer and the second region of the transparent insulating layer overlap the first light source in a vertical direction, and
- wherein light generated from the light sources is emitted through the upper surface and the curved surface of the resin layer.
A lighting device comprising:
- a substrate;
- three of more light sources disposed in a first direction on the substrate;
- a resin layer disposed on the substrate and the light sources;
- and
- a transparent insulating layer disposed on the resin layer,
- wherein the first direction is a long axis direction of the substrate,
- wherein a second direction orthogonal to the first direction is a short axis direction of the substrate,
- wherein a surface of the resin layer has a flat upper surface and a plurality of side surfaces,
- wherein both side surfaces of the plurality of side surfaces in the first direction have curved surface,
- wherein the transparent insulating layer has a flat first region disposed on the upper surface of the resin layer and a second region disposed on the both side surfaces of the resin layer,
- wherein the second region extends from both ends of the flat first region of the transparent insulating layer to the substrate in a curved surface,
- wherein the light sources include a first light source located at an outermost side,
- wherein the curved surface of the resin layer and the second region of the transparent insulating layer overlap the first light source in a vertical direction,
- wherein a length of the first region of the transparent insulating layer in the first direction is longer than a distance between adjacent light sources, and
- wherein light generated from the light sources is emitted through the first and second regions of the transparent insulating layer.
Dependencies are inferred from the claim text.