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Patent for License with Right to Enforce:

Organic Electroluminescence Device    

Organic electroluminescence (EL) devices with high efficiency and narrow emission band


An electroluminescence device that includes: an anode, a cathode and an emitting layer located between the anode and the cathode. The emitting layer contains a compound selected from a group consisting of neutral red and its derivatives. The ICT compounds have the general features of ICT compounds. They have an additional feature of high fluorescence and have a narrow emission band due to the totally rigid structure between the donor and accepter resulting in an organic EL device with a much improved efficiency and high brightness.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 428: Stock Material Or Miscellaneous Articles

This is the residual class for: 1. Stock material in the form of a structurally defined web, sheet, rod, strand, fiber, filament, cell, flake, particle not provided elsewhere. 2. Stock material in the form of a web, sheet, mass or layer which consists of or contains a structurally defined constituent or element. 3. A nonstructural laminate defined merely in terms of the composition of one or more layers. 4. An article of manufacture or an intermediate-article not provided for elsewhere. 5. A process for applying an impregnating material to a naturally solid product such as a wood beam, a sheet of leather or a stone, or for applying a coating to a base, and which process includes no significant method step.

Subclass 690: Fluroescent, phosphorescent, or luminescent layer

Class 313: Electric Lamp And Discharge Devices

This is the generic class for electric lamp and electric space discharge device structure. Examples of such devices are electric incandescent lamps, gas or vapor filled electric discharge tubes, including lamps, mercury arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission electron multipliers, spark plugs, and open air arc and spark devices.

Subclass 504: Organic phosphor
Subclass 505: With electrode matrix
Subclass 506: Plural layers

Class 544: Organic Compounds -- Part Of The Class 532 Series

The classes of the 532 series embrace monomeric organic carbon compounds and polymeric organic carbon compounds that are not solid synthetic resins, natural rubbers, or hydrocarbons.

Subclass 234: Tricyclo ring system having the 1,2-diazine ring as one of the cyclos