Organic electroluminescence illuminating device and method for manufacturing the same

Abstract

An organic electroluminescence illuminating device (L) has a structure in which an organic electroluminescence element ( 10 ) is provided and encapsulated between a pair of substrates ( 20, 21 ). A light emitting surface of the organic electroluminescence element ( 10 ) has a portion which is not parallel to a light extraction surface of the entire illuminating device.

1 . An organic electroluminescence illuminating device having a structure in which an organic electroluminescence element is interposed between a pair of substrates facing each other, 
       wherein
 a light emitting surface of the organic electroluminescence element has a portion which is not parallel to a light extraction surface of the entire illuminating device. 
 
     
     
         2 . The organic electroluminescence illuminating device of  claim 1 , wherein
 the light emitting surface of the organic electroluminescence element is a curved surface.   
     
     
         3 . The organic electroluminescence illuminating device of  claim 1 , wherein
 the light emitting surface of the organic electroluminescence element is a planar surface, and is sloped relative to the light extraction surface of the illuminating device.   
     
     
         4 . The organic electroluminescence illuminating device of  claim 1 , wherein
 the organic electroluminescence element is made of a flexible material.   
     
     
         5 . The organic electroluminescence illuminating device of  claim 1 , wherein
 at least one of the pair of substrates is made of an optically transparent material.   
     
     
         6 . The organic electroluminescence illuminating device of  claim 1 , wherein
 a space formed between the pair of substrates is filled with a heat dissipating resin having a higher heat conductivity than that of the air.   
     
     
         7 . A method for manufacturing the organic electroluminescence illuminating device of  claim 1 , wherein
 the organic electroluminescence element includes a first electrode, an organic electroluminescence layer, and a second electrode, which are successively stacked on a support base member, and   steps of forming the first electrode, the organic layer, and the second electrode are performed on the support base member which is conveyed in roll-to-roll processing.