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Semiconductor light emitting diode producing visible light

  • US 5,739,552 A
  • Filed: 10/24/1995
  • Issued: 04/14/1998
  • Est. Priority Date: 10/24/1994
  • Status: Expired due to Fees
First Claim
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1. A light emitting diode (LED) device producing visible light comprising:

  • a blue LED including semiconductor crystal layers for emitting blue light;

    a green LED including semiconductor crystal layers for emitting green light; and

    a red LED including semiconductor crystal layers for emitting red light, the blue, green, and red LEDs being Laminated and united serially in a stack.

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