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US 2010/0165604 A1Published application
White organic electroluminescent device
AssigneeSumitomo Chemical Company, Limited
InventorYasunori Uetani
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AssigneeSumitomo Chemical Company, Limited
InventorYasunori Uetani
Estimating the term…
Disclosed is a white polymer organic electroluminescent device having excellent device characteristics such as efficiency. Specifically disclosed is a white organic electroluminescent device containing a polymer material as an electron-transporting material or a light-emitting material, wherein at least two light-emitting layers emitting light of different colors are laminated and at least one of the light-emitting layers is a crosslinked light-emitting layer. The white organic electroluminescent device is further characterized by emitting a white light as a whole. Preferably, at least one of the crosslinked light-emitting layers and at least one of the non-crosslinked light-emitting layers are in contact with each other in the white organic electroluminescent device.
A white organic electroluminescent device which comprises a laminate of at least two light-emitting layers emitting light of different colors and containing a polymer material as a charge-transporting material or a light-emitting material, at least one of the light-emitting layers being a crosslinked light-emitting layer, and which emits a white light as a whole.
Use of at least two polymer materials as a charge-transporting material or a light-emitting material which emit light of different colors, at least one of which is crosslinkable, and which emit a white light as a whole in a white organic electroluminescent device.
Dependencies are inferred from the claim text.