RGB patterning of organic light-emitting devices using photo-bleachable emitters dispersed in a common host

  • US 20030186078A1
  • Filed: 03/29/2002
  • Published: 10/02/2003
  • Est. Priority Date: 03/29/2002
  • Status: Abandoned Application
First Claim
Patent Images

1. An organic light emitting diode (OLED), comprising:

  • an organic electroluminescent (EL) layer;

    a hole transporting layer;

    an electron transport layer;

    wherein said organic EL layer comprises a common blue emitting host material doped with red and green emitting materials, at least one of which has been photo-bleached;

    wherein said hole transporting layer and said electron transport layer are on opposing sides of said common host, and are in electrical contact with said common host;

    wherein said hole transporting layer, said electron transport layer, and said common host together comprise an active portion of said OLED;

    electrodes on opposing sides of said active portion for providing a bias across said active portion;

    wherein at least one of said electrodes is transparent.

View all claims

    Thank you for your feedback