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Encapsulated organic electroluminescent display
   
Document Number
US Patent 7255937
Issued Date
August 14, 2007
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Abstract
A structure for an organic electroluminescent display. The organic electroluminescent display includes a substrate, an organic light-emitting unit including a first electrode, an organic layer, and a second electrode sequentially stacked on a surface of the substrate, an encapsulation cover made of inexpensive glass bonded to the substrate by a sealant to seal a space containing the organic light-emitting unit, an absorbent disposed on an inside of the encapsulation cover to absorb moisture in the space, and a buffer layer formed between the sealant and the encapsulation cover to increase the degree of curing of the sealant and the adhesion between the substrate and the encapsulation cover. Therefore, damage to the organic layer by moisture present in the space defined between the substrate and the encapsulation cover is prevented, thereby increasing the life span of the display.
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Number of Claims:
19
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Owner
Samsung SDI Co., Ltd. (Suwon-si, Gyeonggi-do,KR)
Published
August 14, 2007
Application Number
10/871,571
Filed
June 21, 2004
US Classification
428/690   313/304 313/512 428/917
Int'l Classification
H01L   51/50   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
Jul 19, 2003 [KR] 10-2003-0049544
USPTO Field of Search
428/690   428/917   313/504   313/512   313/506  
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