Organic electroluminescent transfer medium provided with pattern transfer layer, organic electroluminescent transfer object provided with pattern transfer layer, and process for producing organic electroluminescent device

Abstract

There are provided an organic electroluminescent transfer medium, an organic electroluminescent transfer object, and a production process of an organic electroluminescent device using the organic electroluminescent transfer medium or the organic electroluminescent transfer object, in which a pattern can be transferred from an organic electroluminescent transfer medium onto an organic electroluminescent transfer object at a relatively low temperature in a simple manner. The organic electroluminescent transfer medium comprises at least a support, a release layer provided on the support, and an organic electroluminescent transfer layer provided on the release layer. A transfer surface, which is the surface of the organic electroluminescent transfer layer side, is formed of a pattern transfer layer capable of forming a pattern based on a difference in adhesiveness and/or wettability.

1 . An organic electroluminescent transfer medium comprising at least
 a support,   a release layer provided on the support, and   an organic electroluminescent transfer layer provided on the release layer,   a pattern transfer layer provided on the surface of the organic electroluminescent transfer medium on its organic electroluminescent transfer layer side, and   the pattern transfer layer capable of forming a pattern based on a difference in adhesiveness,   wherein:
 the pattern transfer layer comprises a material whose adhesiveness varies according to exposure to light, and wherein 
 the material comprises a tacky binder resin, a photopolymerizable compound, and a photopolymerization initiator. 
   
     
     
         2 . The organic electroluminescent transfer medium according to  claim 1 , wherein said pattern transfer layer contains an adhesiveness improving material. 
     
     
         3 . The organic electroluminescent transfer medium according to  claim 1 , wherein said organic electroluminescent transfer layer functions also as the pattern transfer layer. 
     
     
         4 . The organic electroluminescent transfer medium according to  claim 1 , wherein said release layer contains a photothermal converting material. 
     
     
         5 . An organic electroluminescent transfer object, which is transferred onto an electroluminescent transfer medium, comprising at least
 a substrate and   an electrode provided on the substrate,   a pattern transfer layer provided on a surface of the electrode, and   the pattern transfer layer capable of forming a pattern based on a difference in an adhesiveness and/or wettability.   
     
     
         6 . The organic electroluminescent transfer object according to  claim 5 , wherein said pattern transfer layer is a layer, of which the wettability is variable upon exposure to light, or a layer of which the adhesiveness is variable upon exposure to heat. 
     
     
         7 . The organic electroluminescent transfer object according to  claim 5 , wherein said pattern transfer layer contains an adhesiveness improving material. 
     
     
         8 . The organic electroluminescent transfer object according to  claim 5 , wherein a hole transport layer is provided on the electrode. 
     
     
         9 . The organic electroluminescent transfer object according to  claim 8 , wherein said hole transport layer functions also as the pattern transfer layer. 
     
     
         10 . The organic electroluminescent transfer object according to  claim 9 , wherein said hole transport layer is a photocatalyst-containing layer which functions also as the pattern transfer layer.