US5552547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organometallic complexes with built-in fluorescent dyes for use in light emitting devices
Assignee: Universal Display Corp
•
Filing: 1995-02-13
•
Granted: 1996-09-03
•
Expires: 2015-02-13
Abstract
Abstract A new class of organometallic complexes with built-in fluorescent dye for use in electroluminescent (EL) devices and a method of preparation are disclosed. An organometallic complex with built-in fluorescent dye as guest dopant is introduced into an organic EL device by thoroughly pre-mixing it with a host organometallic emitter in a certain ratio and co-depositing it from a single source. The organometallic complex with built-in fluorescent dye determines the emission color of the EL device.
Inventors
- 👤 Song Q. Shi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:23
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C09; C09K; C09K11/00; C09K11/06; H10; H10K; H10K50/00; H10K50/10; H10K50/11; H10K85/00; H10K85/30; H10K85/321; H10K85/324; H10K85/60; H10K85/615; H10K85/621; H10K85/622; H10K85/623; H10K85/649; H10K85/657; H10K85/6572
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
An organometallic complex with a built-in fluorescent dye having a general formula: ##STR9## where: M is a trivalent metal ion; O represents oxygen atom; L3 is a fluorescent molecule dye; L1 and L2 are independently selected from one of the molecules having a general formula I or II or III as shown in the following: ##STR10## Where: X represents O, NH and CH 2 ; R1 to R8 represent substitution possibilities at each position and each represent hydrogen or hydrocarbon groups or functional groups selected from cyano, halogen, haloalkyl, haloalkoxy, alkoxyl, amido, amino, sulfonyl, carbonyl, carbonyloxy and oxycarbonyl; R10 represents a hydrocarbon group or a functional group such as cyano, halogen, haloalkyl, haloalkoxy, alkoxyl, amido, amino, sulfonyl, carbonyl, carbonyloxy and oxycarbonyl.
Claim 2
Dependent Claim
121 words
An organometallic complex with a built-in fluorescent dye having a general formula: ##STR9## where: M is a trivalent metal ion; O represents oxygen atom; L3 is a fluorescent molecule dye; L1 and L2 are independently selected from one of the molecules having a general formula I or II or III as shown in the following: ##STR10## Where: X represents O, NH and CH 2 ; R1 to R8 represent substitution possibilities at each position and each represent hydrogen or hydrocarbon groups or functional groups selected from cyano, halogen, haloalkyl, haloalkoxy, alkoxyl, amido, amino, sulfonyl, carbonyl, carbonyloxy and oxycarbonyl; R10 represents a hydrocarbon group or a functional group such as cyano, halogen, haloalkyl, haloalkoxy, alkoxyl, amido, amino, sulfonyl, carbonyl, carbonyloxy and oxycarbonyl.
Claim 3
Dependent Claim
34 words
An organometallic complex with a built-in fluorescent dye as claimed in claim 1 wherein M is a trivalent metal selected from the following group: Al +3 , Ga +3 , and In +3 .
Claim 4
Dependent Claim
15 words
An organometallic complex with a built-in fluorescent dye as claimed in claim 1 including: ##STR11##
References Cited (Backward Citations)
US5150006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-03 | 2000-03-04 | 2000-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-03 | 2004-03-04 | 2004-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-03 | 2008-03-04 | 2008-09-03 | $7700.00 | Window Closed / Lapsed |