Non-crystalline inorganic light emitting diode
AssigneeInvensas Corporation
InventorsIlyas Mohammed, Liang Wang
Life of this patent
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Abstract
Non-crystalline inorganic light emitting diode. In accordance with a first embodiment of the present invention, an article of manufacture includes a light emitting diode. The light emitting diode includes a non-crystalline inorganic light emission layer and first and second semiconducting non-crystalline inorganic charge transport layers surrounding the light emission layer. The light emission layer may be amorphous. The charge transport layers may be configured to inject one type of charge carrier and block the other type of charge carrier.
Claims25
An article of manufacture comprising:
- a light emitting diode comprising:
- a non-crystalline inorganic light emission layer;
- and
- first and second semiconducting non-crystalline inorganic charge transport layers surrounding said light emission layer.
An article of manufacture comprising:
- a light emitting diode comprising:
- a first non-crystalline inorganic layer configured for transporting holes and blocking electrons and having a hole transport layer (HTL) conduction band and a hole transport layer (HTL) valence band;
- a second non-crystalline inorganic layer, disposed on said first layer, configured for emitting light and having an emission conduction band and a emission valence band;
- and
- a third non-crystalline inorganic layer, disposed on said second layer, configured for transporting electrons and blocking holes and having an electron transport layer (ETL) conduction band and an electron transport layer (ETL) valence band,
- wherein alignment of said HTL, emission and ETL conduction bands and said HTL, emission and ETL valence bands favor both charge injection and charge confinement.
An article of manufacture comprising:
- a light emitting device comprising:
- a first diode unit comprising:
- a first non-crystalline inorganic light emission layer configured to emit light of a first wavelength;
- first and second non-crystalline inorganic charge transport layers surrounding said first light emission layer;
- a second diode unit comprising:
- a second non-crystalline inorganic light emission layer configured to emit light of a second wavelength;
- third and fourth non-crystalline inorganic charge transport layers surrounding said second light emission layer;
- a non-crystalline inorganic charge generation layer between said first and second diode units,
- wherein an anode terminal of said first diode unit is coupled to a cathode terminal of said second anode unit, and
- wherein said first and second diode units and said charge generation layer form a single stack of materials.
25-30. (canceled)
Dependencies are inferred from the claim text.