Luminescent display device and method of manufacturing same

Abstract

A luminescent display device comprises a resin substrate having one and another surfaces, an auxiliary electrode made of metal and disposed on the one surface of the resin substrate, a transparent electrode disposed on the auxiliary electrode in a conductive state to the auxiliary electrode, and a luminescent layer composed of an organic compound and disposed on the transparent electrode. A layer of metal oxide may be further formed between the resin substrate and the auxiliary electrode.

What is claimed is  
     
         1 . A luminescent display device comprising: 
 a resin substrate having one and another surfaces;    an auxiliary electrode made of metal and disposed on the one surface of the resin substrate;    a transparent electrode disposed on the auxiliary electrode, said auxiliary electrode being conductive to the transparent electrode; and    a luminescent layer composed of an organic compound and disposed on the transparent electrode.    
     
     
         2 . A luminescent display device according to  claim 1 , further comprising a layer of metal oxide formed between the resin substrate and the auxiliary electrode.  
     
     
         3 . A luminescent display device according to  claim 2 , wherein said metal oxide is formed of a conductive material, which is formed in form of film and is then subjected to a patterning treatment.  
     
     
         4 . A luminescent display device according to  claim 3 , wherein said metal oxide is formed of an oxide including at least one of tin (Sn), zinc (Zn) and indium (In).  
     
     
         5 . A luminescent display device according to  claim 2 , wherein said metal oxide is formed of an insulating material, which is formed in form of film.  
     
     
         6 . A luminescent display device according to  claim 5 , wherein said metal oxide is formed of an oxide including at least one of aluminium (Al), zirconium (Zr), titanium (Ti), calcium (Ca), magnesium (Mg), chromium (Cr), nickel (Ni) and silica (Si).  
     
     
         7 . A luminescent display device according to  claim 2 , further comprising a moisture-proof layer between the resin substrate and the metal oxide for shutting out moisture.  
     
     
         8 . A method of manufacturing a luminescent display device comprising the steps of: 
 preparing a resin substrate having one and another surfaces;    laminating an auxiliary electrode made of metal on the one surface of the resin substrate;    laminating a transparent electrode on the auxiliary electrode, which is conductive to the transparent electrode; and    laminating a luminescent layer composed of an organic compound on the transparent electrode.    
     
     
         9 . A manufacturing method according to  claim 8 , further comprising the step of laminating a metal oxide on the one surface of the resin substrate before the lamination of said auxiliary electrode.  
     
     
         10 . A manufacturing method according to  claim 9 , wherein said metal oxide is formed of a conductive material, which is formed in form of film, and is then subjected to a patterning treatment.  
     
     
         11 . A manufacturing method according to  claim 9 , wherein said metal oxide is formed of an insulating material, which is formed in form of film.  
     
     
         12 . A manufacturing method according to  claim 9 , wherein said metal oxide and said auxiliary electrode are patterned at a same time by utilizing a photolithography technology or using an acid.  
     
     
         13 . A manufacturing method according to  claim 8 , wherein said transparent electrode is formed in form of film through spattering, ion-plating or epitaxial growth treatment or process and then patterned by utilizing a photolithography technology or using an acid.