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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0212779 (1998-12-16) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 418 인용 특허 : 51 |
The present invention is an environmental barrier for an OLED. The environmental barrier has a foundation and a cover. Both the foundation and the cover have a top of three layers of (a) a first polymer layer, (b) a ceramic layer, and (c) a second polymer layer. The foundation and/or the cover may h
The present invention is an environmental barrier for an OLED. The environmental barrier has a foundation and a cover. Both the foundation and the cover have a top of three layers of (a) a first polymer layer, (b) a ceramic layer, and (c) a second polymer layer. The foundation and/or the cover may have a at least one set of intermediate barrier each having (a) an intermediate polymer layer with (b) an intermediate ceramic layer thereon. In a preferred embodiment, the foundation has a substrate upon which at least a top is deposited. An OLED is constructed upon the top, opposite the substrate. The cover of at least a top then placed over the OLED. The placement may be by gluing or preferably by vacuum deposition. For use as a display, it is preferred that either the ceramic layer(s) in the foundation, cover or both is substantially transparent to the light emitted by the OLED. Each layer of the foundation and the cover is preferably vacuum deposited. Vacuum deposition includes monolayer spreading under vacuum, plasma deposition, flash evaporation and combinations thereof. It is further preferred that all layers are deposited and cured between rolls or rollers to avoid the defects that may be caused by abrasion over a roll or roller.
[ We claim:] [1.]1. A flexible environmental barrier for an organic light emitting device, comprising:(a) a foundation having;(i) a top of a first polymer layer, a first ceramic layer on the first polymer layer, and a second polymer layer on the first ceramic layer;(b) an organic light emitting devi
[ We claim:] [1.]1. A flexible environmental barrier for an organic light emitting device, comprising:(a) a foundation having;(i) a top of a first polymer layer, a first ceramic layer on the first polymer layer, and a second polymer layer on the first ceramic layer;(b) an organic light emitting device constructed on the second polymer layer of the top; and(c) a cover of a third polymer layer with a second ceramic layer thereon and a fourth polymer layer on said second ceramic layer, said cover deposited on said organic light emitting device, the foundation and cover encapsulating the organic light emitting device as said flexible environmental barrier.
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