Patterning of polymer light emitting devices using electrochemical polymerization
AssigneeInnovative Technology Licensing, LLC
InventorsZhming Zhuang, Leslie F. Warren, Jr., George M. Williams, Jeffrey T. Cheung
Life of this patent
Estimating the term…
Abstract
Light emitters are formed and patterned on an electrode for an organic light-emitting device by electrochemically polymerizing a monomer across the full length of the electrode. A second electrode is deposited so to define a pixel region between mutually aligned portions of the two electrodes. Electroluminescence of the emitter occurs when a voltage is applied across the electrodes of the device.
Claims12
A method of forming a light omitting layer on at least one elected electrode of an organic light emitting diode (OLED), comprising:
- a. exposing said at least one selected electrode to a precursor monomer of an electroluminescent polymer;
- and
- b. simultaneously electrochemically converting said precursor monomer to said electroluminecent polymer and depositing said polymer on said at least one selected electrode, wherein said precursor monomer is selected from the group consisting of a bis (2-thienyl) terminated fluorene and a bis (2-thienyl terminated carbazole and mixtures thereof.
A method of fabricating an organic light emitting device comprising:
- a. patterning an electrode;
- b. selectively exposing said electrode to a precursor monomer of an electroluminescent polyrnmer;
- c. electrochemnically depositing said polymer on said electrode;
- d. patterning a second electrode onto said polymer on said electrode to define pixels between mutually aligned portions of said electrode and said second electrode;
- and
- e. encapsulating said electrode and said second electrode for protection from outside environment, wherein said precursor monomer is selected from the group consisting of a bis (2-thieryl) terminated fluorene and a bis (2-thienyl) terminated carbazole and mixtues thereof.
Dependencies are inferred from the claim text.