Vacuum deposited non polymeric flexible organic light emitting devices
AssigneeThe Trustees of Princeton University
InventorsGONG GU, PAUL BURROWS, STEPHEN R. FORREST
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Abstract
An organic light emitting device (OLED) is disclosed for which the hole transporting layer, the electron transporting layer and/or the emissive layer, if separately present, is comprised of a non-polymeric material. A method for preparing such OLED's using vacuum deposition techniques is further disclosed.
Claims23
A flexible organic light emitting device comprising:
- an organic light emitting device comprising a flexible substrate layer and:
- a) a hole transporting layer comprised of a non-polymeric material or
- b) an electron transporting layer comprised of a non-polymeric material.
A flexible organic light emitting device comprising:
- a flexible substrate,
- an anode layer on said flexible substrate,
- a hole transporting layer on said anode layer,
- an electron transporting layer on said hole transporting layer and
- a cathode layer on said electron transporting layer,
- wherein said hole transporting layer or said electron transporting layer is comprised of a non-polymeric material.
A flexible organic light emitting device comprising:
- a flexible substrate,
- a cathode layer on said flexible substrate,
- a hole transporting layer on said cathode layer,
- an electron transporting layer on said hole transporting layer and
- an anode layer on said electron transporting layer,
- wherein said hole transporting layer or said electron transporting layer is comprised of a non-polymeric material.
A method of preparing a flexible organic light emitting device comprising:
- fabricating an organic light emitting device on a flexible substrate wherein the fabrication of said organic light emitting device includes the step of vacuum depositing a hole transporting layer or the step of vacuum depositing an electron transporting layer.
A method of preparing a display device comprising:
- incorporating a flexible organic light emitting device into a display device wherein said flexible organic light emitting device is fabricated on a flexible substrate using a method that includes the step of vacuum depositing a hole transporting layer or the step of vacuum depositing an electron transporting layer.
A flexible organic light emitting device comprising:
- a flexible, transparent polyester substrate,
- an anode layer on said flexible, transparent polyester
- substrate, said anode layer being comprised of indium tin oxide;
- a hole transporting layer on said anode layer, said hole transporting layer being comprised of N,N′-diphenyl-N,N′-bis(3-methylpheny)1-1′biphenyl-4,4′diamine;
- an electron transporting layer on said hole transporting layer, said electron transporting layer being comprised of tris-(8-hydroxyquinoline) aluminum;
- and a cathode layer on said electron transporting layer.
Dependencies are inferred from the claim text.