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Method for manufacturing phosphor film and method for making LED package having the phosphor film

  • US 8,658,445 B2
  • Filed: 08/30/2012
  • Issued: 02/25/2014
  • Est. Priority Date: 02/16/2012
  • Status: Active Grant
First Claim
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1. A method for manufacturing a phosphor film for use in an LED (light emitting diode) package to change color of light from the LED package, comprising following steps:

  • providing a mold, the mold comprising a first molding part and a second molding part, the first molding part and the second molding part cooperatively forming a molding chamber, the first molding part defining an opening communicating with the molding chamber;

    filling a mixture of phosphor particles and a transparent glue into the first opening;

    providing a piston, the piston moving in the first opening along a direction from the first molding part to the second molding part, thereby pressing the mixture of the phosphor particles and the transparent glue into the molding chamber;

    solidifying the mixture of the phosphor particles and the transparent glue to form a phosphor film; and

    removing the phosphor film from the mold.

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