Lighting device, display, and method for manufacturing the same
AssigneeLuxingtek, Ltd.
InventorsWen-Chiun Ing, Wei-Hsin Hou
Life of this patent
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Abstract
A display, a lighting device and a method for manufacturing the lighting device are provided. The lighting device comprises a substrate, an electrode layer, a plurality of light source units and a light scattering layer, which is covered by a transparent layer and a reflector layer to create a uniform surface light within an ultra thin format. A yellow phosphor layer is disposed above the reflector layer to create white light when a blue LED or UV LED is used. The lighting device also provides a unique electrode layout design which can be applied for local dimming control and can be easily applied for large size product applications.
Claims24
A lighting device, comprising:
- a substrate;
- an electrode layer patterned on the substrate;
- a plurality of light source units being arranged onto the substrate to electrically connect with the electrode layer and to form an array, each of the light source units having opposite contacts electrically connected to the same electrode layer;
- a light scattering layer covering the substrate and the electrode layer;
- a transparent layer overlaying the light scattering layer and the light source units to cover an entire area above the light scattering layer and the light source units;
- and
- a reflector disposed on the transparent layer, wherein the reflector has reflective patterns distributed with respect to each of the light source units and in a higher density above each of the light source units.
A method for manufacturing a lighting device, the method comprising the steps of:
- providing a substrate;
- forming a patterned electrode layer on the substrate;
- arranging a plurality of light source units onto the substrate to electrically connect with the electrode layer and to form an array, each of the light source units having opposite contacts electrically connected to the same electrode layer;
- coating a light scattering layer to cover the substrate and the electrode layer;
- forming a transparent layer overlaying the light scattering layer and the light source units to cover an entire area above the light scattering layer and the light source units;
- and
- disposing a reflector on the transparent layer, wherein the reflector has reflective patterns distributed with respect to each of the light source units and in a higher density above each of the light source units.
Dependencies are inferred from the claim text.