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Light Emitting Element and Light Emitting Device Using the Element

  • US 20080135858A1
  • Filed: 05/16/2005
  • Published: 06/12/2008
  • Est. Priority Date: 05/21/2004
  • Status: Active Grant
First Claim
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1. A light emitting device comprising:

  • a first light emitting element having a first light emitting layer including a light emitting organic compound between a first anode and a first cathode; and

    a second light emitting element having a second light emitting layer including a light emitting organic compound between a second anode and a second cathode,wherein the first light emitting element and the second light emitting element are connected in series with the first cathode being in contact with the second anode, andwherein the first light emitting element shows a first spectrum having at least two peaks and the second light emitting element shows a second emission spectrum having a peak in a different position from positions of the two peaks.

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