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US 7,452,736 B2Granted
Surface emitting device, manufacturing method thereof and projection display device using the same
AssigneeLG Electronics Inc.
InventorChan Young Park
Life of this patent
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Abstract
There are provided a surface emitting device and a projection display device, in which high power output can be produced by configuring a large-scaled LED. The surface emitting device includes a plurality of stacked light emitting elements provided on one module. Each of the stacked light emitting elements includes n-type layers, light emitting layers and p-type layers, which are formed in sequence.
Claims6
A method for manufacturing a surface emitting device, comprising the steps of:
- a) sequentially stacking a first p-type layer, a first light emitting layer and a first n-type layer on a substrate;
- b) sequentially stacking a second p-type layer, a second light emitting layer and a second n-type layer on the first n-type layer;
- c) performing the step b) at least one time;
- d) attaching the stacked light emitting element configured through the steps a) to c) to a transparent electrode on which an anode electrode pattern and a cathode electrode pattern are formed;
- e) attaching a reflective layer below the transparent electrode, the reflective layer being coated with metal;
- and
- f) radiating lights emitted from the plurality of light emitting layers within a specific angle by using a reflector.
4 more elements
Dependencies are inferred from the claim text.