§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US6146225A Expired / Lapsed US ⏱️ 0.0 years remaining

Transparent, flexible permeability barrier for organic electroluminescent devices

Assignee: Innolux Corp
•
Filing: 1998-07-30
•
Granted: 2000-11-14
•
Expires: 2018-07-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A barrier for preventing water or oxygen from a source thereof from reaching a device that is sensitive to water or oxygen. The barrier is constructed by depositing a first polymer layer between the device and the source. An inorganic layer is deposited on the first polymer layer of the device by plasma enhanced chemical vapor deposition utilizing an electron cyclotron resonance source ECR-PECVD. A second polymer layer is then deposited on the inorganic layer. The inorganic layer is preferably an oxide or nitride. A second barrier layer having a compound that absorbs oxygen or water can be placed between the inorganic layer and the device to further retard the passage of oxygen or water. The present invention is particularly useful in encapsulating electroluminescent displays.

Inventors

  • 👤 James R. Sheats
  • 👤 Mark R. Hueschen
  • 👤 Karen L. Seaward
  • 👤 Daniel B. Roitman
  • 👤 George Andrew Davidson Briggs

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 12:42
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/04; H10; H10K; H10K50/00; H10K50/80; H10K50/84; H10K50/844; H10K50/8445; H10K50/846; H10K59/00; H10K59/80; H10K59/87; H10K59/873; H10K59/874

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 55 words
A method for preventing water or oxygen from a source thereof reaching a device, said method comprising the steps of: depositing a first polymer layer between said device and said source; depositing an inorganic layer on said first polymer layer of said device by ECR-PECVD; and depositing a second polymer layer on said inorganic layer.
Claim 2
Independent Claim 55 words
A method for preventing water or oxygen from a source thereof reaching a device, said method comprising the steps of: depositing a first polymer layer between said device and said source; depositing an inorganic layer on said first polymer layer of said device by ECR-PECVD; and depositing a second polymer layer on said inorganic layer.
Claim 3
Dependent Claim 12 words
The method of claim 1 wherein said inorganic layer comprises an oxide.
Claim 4
Dependent Claim 16 words
The method of claim 2 wherein said oxide comprises an aluminum oxide or a silicon oxide.
Claim 5
Dependent Claim 12 words
The method of claim 1 wherein said inorganic layer comprises a nitride.
Claim 6
Dependent Claim 16 words
The method of claim 4 wherein said nitride comprises an aluminum nitride or a silicon nitride.
Claim 7
Dependent Claim 12 words
The method of claim 1 wherein said inorganic layer comprises an oxynitride.
Claim 8
Dependent Claim 16 words
The method of claim 6 wherein said oxynitride comprises an aluminum oxynitride or a silicon oxynitride.
Claim 9
Dependent Claim 27 words
The method of claim 1 further comprising the step of depositing a layer of material that absorbs oxygen or water between said inorganic layer and said device.
Claim 10
Dependent Claim 19 words
The method of claim 8 wherein said absorbing material comprises a metal uniformly dispersed in an oxide or nitride.
Claim 11
Dependent Claim 18 words
The method of claim 1 wherein said inorganic layer further comprises a material that absorbs oxygen or water.
Claim 12
Dependent Claim 12 words
The method of claim 10 wherein said absorption material comprises a metal.

References Cited (Backward Citations)

US4842893A Cited
US4954371A Cited
US5260095A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-11-14 2004-05-15 2004-11-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-11-14 2008-05-15 2008-11-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-11-14 2012-05-15 2012-11-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag