US5895228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulation of organic light emitting devices using Siloxane or Siloxane derivatives
Assignee: Innolux Corp
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Filing: 1997-03-20
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Granted: 1999-04-20
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Expires: 2017-03-20
Abstract
Abstract An organic light emitting device (10) is provided which is encapsulated by a Siloxane buffer layer (17.1). This Siloxane buffer layer (17.1) is applied to the diode (10) providing for protection against contamination, degradation, oxidation and the like. The Siloxane buffer layer (17.1) carries at least a second encapsulation layer (17.2).
Inventors
- 👤 Hans Biebuyck
- 👤 Eliav Haskal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
H; H10; H10K; H10K59/00; H10K59/80; H10K59/87; H10K59/873; H10K50/00; H10K50/80; H10K50/84; H10K50/841; H10K50/842; H10K50/8423; H10K50/844
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
79 words
Method for encapsulating an organic light emitting device by a transparent or semi-transparent stack of encapsulation layers, comprising the steps of: applying a buffer layer which comprises Siloxane to said organic light emitting device such that said buffer layer is in conformal contact with said organic light emitting device, and attaching a second layer to said buffer layer such that it adheres to said buffer layer and is separated from said organic light emitting device by said buffer layer.
Claim 2
Dependent Claim
79 words
Method for encapsulating an organic light emitting device by a transparent or semi-transparent stack of encapsulation layers, comprising the steps of: applying a buffer layer which comprises Siloxane to said organic light emitting device such that said buffer layer is in conformal contact with said organic light emitting device, and attaching a second layer to said buffer layer such that it adheres to said buffer layer and is separated from said organic light emitting device by said buffer layer.
Claim 3
Dependent Claim
47 words
The method of claim 1, whereby, said buffer layer is applied to said organic light emitting device carrying out the steps: covering organic light emitting device with curable Siloxane, and then curing it on said organic light emitting device, preferably curing it such that it remains tacky.
Claim 4
Dependent Claim
28 words
The method of claim 1, whereby said buffer layer is applied to said organic light emitting device in form of a flexible Siloxane film which was fabricated separately.
Claim 5
Dependent Claim
29 words
The method of claim 2, whereby said buffer layer is patterned when applying it such that at least one contact electrode of said organic light emitting device remains accessible.
Claim 6
Dependent Claim
36 words
The method of claim 3, whereby said buffer layer is structured after having been applied to said organic light emitting device such that at least one contact electrode of said organic light emitting device remains accessible.
Claim 7
Dependent Claim
19 words
The method of claim 1, whereby said stack of encapsulation layers is pressed onto said organic light emitting device.
Claim 8
Dependent Claim
28 words
The method of claim 1, whereby one of the layers of said stack of encapsulation layers is structured after having been applied to said organic light emitting device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |