Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Reexamination Certificate
2006-02-14
2006-02-14
Lee, Wilson (Department: 2821)
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
C313S504000
Reexamination Certificate
active
06998789
ABSTRACT:
The invention provides an organic EL device and a method for driving the organic electroluminescent device, that is adapted to perform satisfactorily multicolor (plural colors) luminescence with a simplified structure, and to provide an illumination device and electronic apparatus including the organic electroluminescent device. The device can include a first electrode, a second electrode and a third electrode that are formed on a substrate. A first organic luminescence layer can be formed between the first electrode and the second electrode, and a second organic luminescence layer can be formed between the second electrode and the third electrode. The first electrode and the third electrode are electrically coupled to each other. The second electrode has transparency, and at least one of the first electrode and the third electrode has transparency. There can also be included a power switching unit for enabling switching between forward driving which allows the first electrode and the third electrode to serve as an anode and allows the second electrode to serve as a cathode, and inverse driving which allows the first electrode and the third electrode to serve as a cathode and allows the second electrode to serve as an anode.
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Lee Wilson
Seiko Epson Corporation
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