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LASER PATTERNING OF ENCAPSULATED ORGANIC LIGHT EMITTING DIODES

  • US 20080160789A1
  • Filed: 01/07/2008
  • Published: 07/03/2008
  • Est. Priority Date: 12/19/2002
  • Status: Active Grant
First Claim
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1. A method for laser patterning encapsulated organic light emitting diodes comprising:

  • providing an encapsulated organic light emitting diode having a light emitting layer and an intervening layer, andtreating one or more areas of the light emitting layer with a laser beam, which laser beam energy is transmitted through an electrode layer,wherein the energy level of the laser beam is below the ablation threshold of the light emitting layer and the intervening layer,wherein the laser beam is transmitted through the intervening layer to treat the one or more areas, wherein the intervening layer has a functionality relating to the encapsulated organic light emitting diode, andwherein the light emission of the one or more areas of the light emitting layer treated with the laser beam are permanently changed, and wherein the treatment of the one or more areas does not substantially change the functionality of the intervening layer.

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