Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted

• US 5,759,444 A
• Filed: 07/31/1996
• Issued: 06/02/1998
• Est. Priority Date: 09/25/1995
• Status: Expired due to Term

• Current Assignee: TOYO Ink Manufacturing Company Limited (artience Co. Ltd.)
• Original Assignee: TOYO Ink Manufacturing Company Limited (artience Co. Ltd.)
• Inventors: Okutsu, Satoshi, Tamano, Michiko, Enokida, Toshio
• Primary Examiner(s): Bonner, Melissa
• Application Number:
  US08/688,879
• Time in Patent Office: 671 Days
• Field of Search: 252/301.16, 313/504, 428/690
• US Class Current: 252/301.16
• CPC Class Codes: C07C 211/61 with at least one of the condensed ring systems formed by three or more rings
• CPC Class Codes: C07C 217/76 having amino groups bound to carbon atoms of six-membered aromatic rings and etherified hydroxy groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton
• CPC Class Codes: C07C 217/84 the oxygen atom of at least one of the etherified hydroxy groups being further bound to an acyclic carbon atom
• CPC Class Codes: C07C 217/86 to an acyclic carbon atom of a hydrocarbon radical containing six-membered aromatic rings
• CPC Class Codes: C07C 217/90 the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. amino-diphenylethers
• CPC Class Codes: C07C 225/22 having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
• CPC Class Codes: C07C 2601/14 The ring being saturated
• CPC Class Codes: C07C 2603/24 Anthracenes; Hydrogenated anthracenes
• CPC Class Codes: C07C 2603/26 Phenanthrenes; Hydrogenated phenanthrenes
• CPC Class Codes: C07C 2603/50 Pyrenes; Hydrogenated pyrenes
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2102/103 comprising indium oxides, e.g. ITO
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/30 Coordination compounds
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/326 comprising gallium
• CPC Class Codes: H10K 85/622 containing four rings, e.g. pyrene
• CPC Class Codes: H10K 85/626 containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• CPC Class Codes: H10K 85/631 Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
• CPC Class Codes: H10K 85/633 : comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/6565 : Oxadiazole compounds
• CPC Class Codes: H10K 85/657 : Polycyclic condensed heteroaromatic hydrocarbons
• CPC Class Codes: H10K 85/6574 : comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
• CPC Class Codes: Y10S 428/917 : Electroluminescent

Abstract

A light-emitting material of the following general formula 1! for an organic electroluminescence device, ##STR1## wherein each of A¹ to A⁴ is a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, and each of R¹ to R⁸ is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, provided that adjacent substituents may form an aryl ring.

Claims

1. A light-emitting material of the following general formula 3! for an organic electroluminescence device, ##STR103## wherein each of R¹ to R⁸ and R²⁹ to R⁴⁸ is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of X¹ to X⁴ is independently O, S, C═

O, SO₂, (CH₂)_x --O--(CH₂)_y, a substituted or unsubstituted alkylene group or a substituted or unsubstituted alicyclic residue, provided that each of x and y is independently an integer of 0 to 20 and that in no case x+y=0, provided that adjacent substituents of R¹ to R⁴ or R⁵ to R⁸ may form an aryl ring.

2. A light-emitting material of the following general formula 4! for an organic electroluminescence device, ##STR104## wherein each of R¹ to R⁸ and R²⁹ to R⁴⁸ is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of X¹ to X⁴ is independently O, S, C═

O, SO₂, (CH₂)_x --O--(CH₂)_y, a substituted or unsubstituted alkylene group or a substituted or unsubstituted alicyclic residue, provided that each of x and y is independently an integer of 0 to 20 and that in no case x+y=0, provided that adjacent substituents of R¹ to R⁴ or R⁵ to R⁸ may form an aryl ring.

3. A light-emitting material of the following general formula 5! for an organic electroluminescence device, ##STR105## wherein each of R¹ to R⁸ and R²⁹ to R⁴⁸ is independently a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group or a substituted or unsubstituted amino group, and each of Y¹ to Y⁸ is independently a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group having 6 to 16 carbon atoms, provided that adjacent substituents of R¹ to R⁴ or R⁵ to R⁸ may form an aryl ring.