Patent for Sale:

Thin-film Type OLED    

The technology provides a thin-film type OLED with pure saturated red emission and with a narrow emission band.


The technology relates to thin-film type OLED devices which use specific red-emitting materials (salicylaldiminato Schiff bases or their metal complexes based on diaminomaleonitrile and salicylaldehyde derivatives) in the luminescent layer exhibit good color purity, high efficiency and good stability.

The invented thin-film type OLED using the specific red light emitting materials exhibits excellent color chromaticity co-ordinates and purity, good efficiency and high stability.

Primary Application of the Technology

The technology could be used to produce OLED devices for flat panel display applications.

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 252: Compositions

(A) Compositions of matter, having or not having structure, physical form or heterogeneous arrangement of components and for which there is no provision elsewhere. (B) Packages of such compositions, or other articles which include such compositions for which there is no provision elsewhere. (C) Processes of making, or peculiar to making, such compositions and for which there is no provision elsewhere. (D) Apparatus for use in or peculiar to such processes and for which there is no provision elsewhere.


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 506: Plural layers

Class 546: 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 94: Ring nitrogen is shared by two of the cyclos