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US 12,188,650 B2Granted
Lighting device
AssigneeLG Innotek Co., Ltd.
InventorsJung Ju Lee, Sa Rum Han
Life of this patent
Estimating the term…
Abstract
A lighting device includes a substrate, light sources having a first light source on the substrate, a resin layer sealing the plurality of light sources on the substrate; and a light transmitting layer on the resin layer. A surface of the resin layer has an upper surface and side surfaces, and the side surfaces of the resin layer has a convex curved surface. The light transmitting layer has a first flat region on the upper surface of the resin layer and a second curved region on the side surfaces of the resin layer. The convex curved surface of the resin layer and the second curved region of the light transmitting layer overlap the first light source in a vertical direction, and a corner between two adjacent the side surfaces of the resin layer has a convex curved surface.
Claims20
A lighting device comprising:
- a substrate;
- a plurality of light sources disposed on the substrate;
- a resin layer disposed on the substrate and sealing the plurality of light sources;
- and
- a light transmitting layer disposed on the resin layer,
- wherein a surface of the resin layer has an upper surface and a plurality of side surfaces,
- wherein at least one of the plurality of side surfaces of the resin layer has a convex curved surface,
- wherein the light transmitting layer has a first region disposed on the upper surface of the resin layer and a second region disposed on the plurality of side surfaces of the resin layer,
- wherein the second region extends from an end of the first region toward the substrate and including a convex curved surface,
- wherein three or more of the plurality of light sources are arranged in the resin layer in a column direction,
- wherein three or more of the plurality of light sources are arranged in the resin layer in a row direction,
- wherein the plurality of light sources includes a first light source arranged to an outermost side of the light sources,
- wherein the first region of the light transmitting layer is parallel to the upper surface of the resin layer,
- wherein the convex curved surface of the resin layer and the second region of the light transmitting layer overlap the first light source in a vertical direction perpendicular to an upper surface of the substrate,
- wherein a number of light sources vertically overlapping the first region of the light transmitting layer among the plurality of light sources is greater than a number of the first light source,
- wherein a corner between two adjacent side surfaces of the plurality of side surfaces of the resin layer has a convex curved surface,
- wherein a radius of curvature of the second region of the light transmitting layer is greater than a sum of a maximum thicknesses of the resin layer and a thickness of the light transmitting layer in the vertical direction, and
- wherein an inner side of the first light source is disposed further outside than a straight line perpendicular to a boundary point between the first region and the second region of the light transmitting layer.
15 more elements
A lighting device comprising:
- a flexible substrate;
- a plurality of light sources disposed on the substrate and electrically connected to the substrate;
- a resin layer disposed on the substrate and sealing the plurality of light sources;
- and
- a light transmitting layer disposed on the resin layer and including a phosphor,
- wherein a surface of the resin layer has an upper surface and a plurality of side surfaces,
- wherein the plurality of side surfaces of the resin layer has a convex curved surface,
- wherein the light transmitting layer has a first region disposed on the upper surface of the resin layer and a second region disposed on the plurality of side surfaces of the resin layer,
- wherein the second region extends from an end of the first region toward the substrate and including a convex curved surface,
- wherein three or more of the plurality of light sources are arranged in the resin layer in a column direction,
- wherein three or more of the plurality of light sources are arranged in the resin layer in a row direction,
- wherein the plurality of light sources includes a first light source arranged to an outermost side of the light sources,
- wherein the first region of the light transmitting layer is parallel to the upper surface of the resin layer,
- wherein the convex curved surface of the resin layer and the second region of the light transmitting layer overlap the first light source in a vertical direction perpendicular to an upper surface of the substrate,
- wherein a number of light sources vertically overlapping the first region of the light transmitting layer among the plurality of light sources is greater than a number of the first light source,
- wherein a plurality of corners between two adjacent side surfaces of the plurality of side surfaces of the resin layer has a convex curved surface,
- wherein a radius of curvature of the second region of the light transmitting layer is greater than a sum of a maximum thicknesses of the resin layer and a thickness of the light transmitting layer in the vertical direction, and
- wherein an inner side of the first light source is disposed further outside than a straight line perpendicular to a boundary point between the first region and the second region of the light transmitting layer.
15 more elements
Dependencies are inferred from the claim text.