Fluorescent structure and method for forming the fluorescent structure and led package using the same
AssigneeAdvanced Optoelectronic Technology, Inc.
InventorsCHI-WEI LIAO, WEN-LIANG TSENG, CHIH-YUNG LIN, MIN-TSUN HSIEH, CHING-LIEN YEH
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Abstract
A fluorescent structure for a light-emitting package includes a first fluorescent layer and a second fluorescent layer covering the first fluorescent layer. The first fluorescent layer includes first fluorescent strips, and defines first transparent regions between the first fluorescent strips. The second fluorescent layer includes second fluorescent strips, and defines second transparent regions between the second fluorescent strips. A method for forming the fluorescent structure and a light-emitting diode package using the fluorescent structure are also provided.
Claims20
A fluorescent structure for a light emitting diode (LED) package, comprising:
- a first fluorescent layer, the first fluorescent layer comprising a plurality of first fluorescent strips, the first fluorescent layer defining a plurality of first transparent regions between the plurality of first fluorescent strips;
- and
- a second fluorescent layer covering the first fluorescent layer, the second fluorescent layer comprising a plurality of second fluorescent strips, and the second fluorescent layer defining a plurality of second transparent regions between the plurality of second fluorescent strips.
A light emitting diode package, comprising:
- a cup base;
- a light emitting diode located in the cup base;
- and
- a fluorescent structure located on the cup base and covering the light emitting diode,
- the fluorescent structure comprising:
- a first fluorescent layer, the first fluorescent layer comprising a plurality of first fluorescent strips, the first fluorescent layer defining a plurality of first transparent regions between the plurality of first fluorescent strips;
- and
- a second fluorescent layer covering the first fluorescent layer, the second fluorescent layer comprising a plurality of second fluorescent strips, and the second fluorescent layer defining a plurality of second transparent regions between the plurality of second fluorescent strips, wherein a maximum distance between every two of the plurality of first fluorescent strips is less than one millimeter, and a maximum distance between every two of the plurality of second fluorescent strips is less than one millimeter.
A method of forming a fluorescent structure for a light emitting diode (LED) package, comprising:
- injecting a first mixture, which comprises a first sealant and a first fluorescent material mixed therein, to form a plurality of first fluorescent strips;
- injecting a second mixture, which comprises a second sealant and a second fluorescent material mixed therein, to form a plurality of second fluorescent strips;
- and
- fixing the plurality of first fluorescent strips and the plurality of second fluorescent strips into a transparent sealant to form the fluorescent structure, wherein a maximum distance between every two of the plurality of first fluorescent strips is less than one millimeter, and a maximum distance between every two of the plurality of second fluorescent strips is less than one millimeter.
Dependencies are inferred from the claim text.