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US 6,274,980 B1Granted
Single-color stacked organic light emitting device
AssigneeThe Trustees of Princeton University
InventorsPaul E. Burrows, Stephen R. Forrest
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Abstract
An organic light emitting device (OLED) which emits high intensity light is formed as a stack of individual OLEDs simultaneously emitting light of the same color.
Claims12
A stacked organic light emitting device comprising:
- a plurality of organic light emitting devices arranged vertically, wherein the organic light emitting devices emit light of substantially the same color;
- and
- a first electrode arranged at a first end of the stacked organic light emitting device, wherein the electrode is substantially reflective,
- a second electrode arranged at a second end of the stacked organic light emitting device, wherein the electrode is substantially transparent,
- wherein light emitted from the second end of the stacked organic light emitting device is of substantially the same said color and is brighter than the light emitted from each of the plurality of organic light emitting devices.
2 more elements
Dependencies are inferred from the claim text.