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Organic electroluminescent device using mixture of phosphorescent material as light-emitting substance
   
Document Number
US Patent 7358662
Issued Date
April 15, 2008
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Abstract
A donor substrate for use in a Laser Induced Thermal Imaging method includes a transfer film that includes a light-emitting layer made up of a host substance that includes a matrix material and a low molecular weight transporter, and a phosphorescent dopant. The transfer film is transferred in the formation of an organic EL device which includes a first electrode, a hole transport layer, a light-emitting layer, and the second electrode, wherein the light-emitting layer includes the light-emitting film. Accordingly, the light-emitting layer can be patterned, and a color purity and light emitting characteristics of a full color organic polymer EL device, produced through a laser induced thermal imaging operating, can be improved.
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Number of Claims:
18
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Owner
Samsung SDI Co., Ltd. (Suwon-si,KR)
Published
April 15, 2008
Application Number
11/011,747
Filed
December 15, 2004
US Classification
313/504   257/103 257/E33.061 257/E51.03 257/E51.035 257/E51.043 428/690 428/917
Int'l Classification
H01J   63/04   (20060101)  
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Attorney/Law Firm
Parent Case
CROSS REFERENCE This application is a continuation of prior U.S. patent application Ser. No. 10/404,134, filed on Apr. 2, 2003, now U.S. Pat. No. 6,870,198 which claims the benefit of Korean Application No. 2002-34692, filed on Jun. 20, 2002, both of which are hereby incorporated by reference for all purposes as if fully set forth herein.
Priority Data
Jun 20, 2002 [KR] 2002-34692
USPTO Field of Search
313/503   313/504   313/506   428/690   428/917   257/40   257/103   257/E51.018   257/E33.061   252/301   252/16  
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