US5757126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passivated organic device having alternating layers of polymer and dielectric
Assignee: Universal Display Corp
•
Filing: 1997-06-30
•
Granted: 1998-05-26
•
Expires: 2017-06-30
Abstract
Abstract A method of passivating organic devices positioned on a supporting transparent plastic substrate including the steps of overcoating the plastic substrate with a multi-layer overcoating, composed of alternating layers of a transparent polymer film and a transparent dielectric material, forming an organic device on the overcoated transparent plastic substrate and sealing the organic device formed on the overcoated plastic substrate. The polymer film layer used in overcoating the plastic substrate acts as a means of improving the barrier properties of the multi-layer overcoating and the dielectric material acts as a physical barrier to atmospheric elements which can corrode the organic device and are a detriment to the reliability of organic LEDs.
Inventors
- 👤 Thomas B. Harvey, III
- 👤 Song Q. Shi
- 👤 Franky So
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:55
CPC Classifications
H; H10; H10K; H10K77/00; H10K77/10; H10K77/111; H10P; H10P14/00; H10P14/60; H10K50/00; H10K50/80; H10K50/84; H10K50/844; H10K50/8445; H10K59/00; H10K59/80; H10K59/87; H10K59/873; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549; Y10; Y10S; Y10S438/00; Y10S438/958
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
54 words
A passivated organic device comprising: a supporting transparent plastic substrate, overcoated with alternating layers of at least one transparent polymer film layer and at least one dielectric material layer; an organic emissive layer formed on the supporting plastic substrate defining a plurality of pixels; and a sealing layer positioned to seal the organic device.
Claim 2
Dependent Claim
54 words
A passivated organic device comprising: a supporting transparent plastic substrate, overcoated with alternating layers of at least one transparent polymer film layer and at least one dielectric material layer; an organic emissive layer formed on the supporting plastic substrate defining a plurality of pixels; and a sealing layer positioned to seal the organic device.
Claim 3
Dependent Claim
29 words
A passivated organic device as claimed in claim 1 wherein the at least one polymer film layer is comprised of at least one of fluorinated polymers, parylenes or cyclotenes.
Claim 4
Dependent Claim
34 words
A passivated organic device as claimed in claim 1 wherein the at least one transparent dielectric material layer is comprised of at least one of silicon monoxide, silicon oxide, silicon dioxide or silicon nitride.
Claim 5
Dependent Claim
39 words
A passivated organic device as claimed in claim 1 wherein the plastic substrate overcoated with alternating layers of at least one polymer film layer and at least one dielectric material layer is overcoated on at least one planar surface.
Claim 6
Dependent Claim
42 words
A passivated organic device as claimed in claim 1 wherein the plastic substrate overcoated with alternating layers of at least one polymer film layer and at least one dielectric material layer is overcoated on all planar surfaces, thereby encapsulating the plastic substrate.
Claim 7
Dependent Claim
53 words
A passivated organic device as claimed in claim 1 further comprised of an overcoating layer of stable metal, capping the plurality of pixels, a buffer system including an overcoating layer of organic material coating the layer of stable metal, capping the pixels, and a low permeability inorganic layer positioned on the buffer system.
Claim 8
Dependent Claim
18 words
A passivated organic device as claimed in claim 6 wherein the overcoating layer of stable metal includes indium.
Claim 9
Dependent Claim
25 words
A passivated organic device as claimed in claim 6 wherein the buffer system further includes a thermal coefficient matching layer positioned on the buffer layer.
Claim 10
Dependent Claim
20 words
A passivated organic device as claimed in claim 6 wherein the buffer layer of organic material includes an organic polymer.
Claim 11
Dependent Claim
40 words
A passivated organic device as claimed in claim 1 wherein the sealing layer includes at least one of a layer of polymer coated metal foil, an epoxy encapsulant, a metalized plastic or a metal can formed over the organic device.
Claim 12
Dependent Claim
31 words
A passivated organic device as claimed in claim 1 wherein the sealing layer includes alternating layers of at least one polymer and at least one metal deposited over the organic device.
Claim 13
Dependent Claim
79 words
A passivated organic device comprising: a supporting transparent plastic substrate, overcoated with alternating layers of at least one polymer film layer comprised of at least one of fluorinated polymers, parylenes or cyclotenes, and at least one dielectric material layer comprised of at least one of silicon monoxide, silicon oxide, silicon dioxide or silicon nitride; an organic emissive layer formed on the supporting plastic substrate defining a plurality of pixels; and a sealing layer positioned to seal the organic device.
Claim 14
Dependent Claim
79 words
A passivated organic device comprising: a supporting transparent plastic substrate, overcoated with alternating layers of at least one polymer film layer comprised of at least one of fluorinated polymers, parylenes or cyclotenes, and at least one dielectric material layer comprised of at least one of silicon monoxide, silicon oxide, silicon dioxide or silicon nitride; an organic emissive layer formed on the supporting plastic substrate defining a plurality of pixels; and a sealing layer positioned to seal the organic device.
Claim 15
Dependent Claim
39 words
A passivated organic device as claimed in claim 12 wherein the plastic substrate overcoated with alternating layers of at least one polymer film layer and at least one dielectric material layer is overcoated on at least one planar surface.
Claim 16
Dependent Claim
42 words
A passivated organic device as claimed in claim 12 wherein the plastic substrate overcoated with alternating layers of at least one polymer film layer and at least one dielectric material layer is overcoated on all planar surfaces, thereby encapsulating the plastic substrate.
Claim 17
Dependent Claim
53 words
A passivated organic device as claimed in claim 12 further comprised of an overcoating layer of stable metal, capping the plurality of pixels, a buffer system including an overcoating layer of organic material coating the layer of stable metal, capping the pixels, and a low permeability inorganic layer positioned on the buffer system.
Claim 18
Dependent Claim
28 words
A passivated organic device as claimed in claim 15 wherein the buffer system further includes a thermal coefficient matching layer positioned on the overcoating layer of organic material.
Claim 19
Dependent Claim
41 words
A passivated organic device as claimed in claim 12 wherein the sealing layer includes at least one of a layer of polymer coated metal foil, an epoxy encapsulant, a metallized plastic encapsulant or a metal can formed over the organic device.
Claim 20
Dependent Claim
31 words
A passivated organic device as claimed in claim 12 wherein the sealing layer includes alternating layers of at least one polymer and at least one metal formed over the organic device.
References Cited (Backward Citations)
US5012156A
Cited
US5478658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |