Organic electroluminescent device and encapsulation method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05B-033/04
H01L-051/20
출원번호
US-0324585
(2002-12-19)
발명자
/ 주소
McCormick, Fred B.
Ottman, Jon E.
Padiyath, Raghunath
출원인 / 주소
3M Innovative Properties Company
인용정보
피인용 횟수 :
54인용 특허 :
48
초록▼
Organic electroluminescent devices and methods of preparing such devices are provided. The organic electroluminescent devices include a first electrode, a light emitting structure, a second electrode, a conductive layer, and a non-conductive material. The light emitting structure is disposed between
Organic electroluminescent devices and methods of preparing such devices are provided. The organic electroluminescent devices include a first electrode, a light emitting structure, a second electrode, a conductive layer, and a non-conductive material. The light emitting structure is disposed between the first and second electrodes. The conductive layer is disposed on at least a portion of the second electrode and is in electrical communication with the second electrode through an opening in the non-conductive material.
대표청구항▼
1. An organic electroluminescent device comprising:a) a first electrode;b) a second electrode;c) a light emitting structure disposed between the first and second electrodes;d) a conductive layer disposed over at least a portion of the second electrode; ande) a non-conductive material defining an ope
1. An organic electroluminescent device comprising:a) a first electrode;b) a second electrode;c) a light emitting structure disposed between the first and second electrodes;d) a conductive layer disposed over at least a portion of the second electrode; ande) a non-conductive material defining an opening through which the conductive layer is in electrical communication with the second electrode, said non-conductive material comprising a thermoplastic polymeric material, wherein (i) the second electrode is in direct contact with the non-conductive material in any portion of the second electrode extending beyond the opening, (ii) the area of the opening is smaller than the area of the surface of the second electrode opposite the light emitting structure, and (iii) all portions of a surface of the non-conductive layer opposite the second electrode are in contact with the conductive layer.2. The organic electroluminescent device of claim 1, wherein the conductive layer extends beyond the periphery of the second electrode and the non-conductive material separates the conductive layer from the first electrode beyond the periphery of the second electrode.3. The organic electroluminescent device of claim 1, wherein the thermoplastic polymeric material comprises an adhesive.4. The organic electroluminescent device of claim 1, wherein the device is encapsulated.5. The organic electroluminescent device of claim 1, wherein the first electrode comprises a transparent layer of a metal or metal oxide.6. The organic electroluminescent device of claim 1, wherein the second electrode comprises an alkali metal, an alkaline earth metal, n-doped silicon, or combination thereof.7. The organic electroluminescent device of claim 1, wherein the conductive layer comprises a deformable film.8. The organic electroluminescent device of claim 1, wherein the conductive layer comprises a metal.9. The organic electroluminescent device of claim 1, further comprising a substrate, wherein the substrate is substantially transparent.10. The organic electroluminescent device of claim 9, wherein the substrate is flexible.11. The organic electroluminescent device of claim 9, wherein the substrate comprises a barrier construction.12. The organic electroluminescent device of claim 11, wherein the barrier construction comprises a metal oxide, metal nitride, metal carbide, metal oxynitride or combination thereof.13. The organic electroluminescent device of claim 9, wherein the substrate, the conductive layer, or a combination thereof are notched.14. The organic electroluminescent device of claim 1, wherein the device comprises a plurality of first electrodes and each first electrode can be independently addressed.15. The organic electroluminescent device of claim 1, wherein the non-conductive material defines a plurality of openings and wherein the conductive layer is in electrical communication with the second electrode through the plurality of openings.16. The organic electroluminescent device of claim 15, wherein the plurality of openings are in a linear arrangement.17. The organic electroluminescent device of claim 15, wherein the device comprises a plurality of second electrodes and the plurality of openings are aligned with the plurality of second electrodes.18. The organic electroluminescent device of claim 17, wherein the device comprises a plurality of first electrodes aligned with the plurality of second electrodes.19. The organic electroluminescent device of claim 18, wherein each pair of first and second electrodes can be independently addressed.20. The organic electroluminescent device of claim 1, wherein the conductive layer extends beyond the periphery of the second electrode, the non-conductive material separates the conductive layer from the first electrode beyond the periphery of the second electrode, and the first electrode extends beyond a periphery of the conductive layer and the non-conductive material.21. The organic electroluminescent device of claim 20, wherein the first electrode is not patterned.22. The organic electroluminescent device of claim 20, wherein the second electrode is not patterned.23. The organic electroluminescent device of claim 20, wherein the first electrode faces a substrate and completely covers the substrate.24. The organic electroluminescent device of claim 1, wherein the non-conductive material comprises a polymeric material and a desiccant.25. The organic electroluminescent device of claim 1, wherein the opening in the non-conductive layer is positioned in an area of the second electrode that is not directly above the light emitting structure.
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