Organic light-emitting element, organic light-emitting transistor, and light-emitting display device

Abstract

An organic light-emitting element comprises a large number of unit pixels each at least composed of a base, an auxiliary electrode, a first insulating layer to cover at least the auxiliary electrode, a charge injection layer on the first insulating electrode, laminated bodies each consisting of a first electrode and a second insulating layer and provided in a predetermined pattern, an organic light-emitting layer formed in regions where the laminated bodies are not provided, and a second electrode to cover at least the organic light-emitting layer. The unit pixel has first partitions provided to demarcate the organic light-emitting layer from other adjacent unit pixels and at least one or more second partitions to have a uniform coated thickness, and at least one of the first partition and the second partition is the laminated body.

1 . An organic light-emitting element comprising a plurality of unit pixels, each of the unit pixels including:
 a base;   a single A-electrode provided on the base;   a charge injection layer provided so as to cover at least the single A-electrode;
 one or more insulating structures provided either on the single A-electrode or on the charge injection layer in a predetermined pattern above the single A-electrode; 
 an organic light-emitting layer formed by coating on the charge injection layer in regions where the insulating structures are not provided; and 
 a single B-electrode provided so as to cover the organic light-emitting layer and all of the one or more insulating structures wherein 
 each of the unit pixels has first partitions configured to divide the organic light-emitting layer from adjacent other unit pixels and one or more second partitions that are provided between the first partitions, the one or more second partitions dividing the organic light-emitting layer so as to have a uniform coating thickness, and the second partitions are the insulating structures, and 
 the single A-electrode is physically and electrically connected to a plurality of areas of the single B-electrode via the organic light-emitting layer, or via the organic light-emitting layer and the charge injection layer. 
   
     
     
         2 . The organic light-emitting element according to  claim 1 , wherein the charge injection layer is formed by coating. 
     
     
         3 . The organic light-emitting element according to  claim 1 , wherein each of the unit pixels has a plurality of divided areas that is divided by the second partitions in the organic light-emitting layer of each of the unit pixels, and each of the divided areas are directly physically and electrically connected to the other divided area in the same unit pixel. 
     
     
         4 . The organic light-emitting element according to  claim 1 , wherein the one or more second partitions have an insulating structure having a predetermined pattern. 
     
     
         5 . The organic light-emitting element according to  claim 1 , wherein the one or more second partitions are spaced from the first partitions. 
     
     
         6 . The organic light-emitting element according to  claim 1 , wherein two or more of the second partitions are spaced from each other. 
     
     
         7 . The organic light-emitting element according to  claim 1 , wherein the one or more second partitions have a columnar structure. 
     
     
         8 . The organic light-emitting element according to  claim 7 , wherein each of the unit pixels has a surface area of 0.25 mm 2  or larger. 
     
     
         9 . The organic light-emitting element according to  claim 1 , wherein area density of distribution of the second partitions is the same throughout the unit pixels. 
     
     
         10 . A light-emitting display device comprising a plurality of light-emitting parts arranged in a matrix, wherein each of the light-emitting parts has the organic light-emitting element according to  claim 1 .