Light-emitting element and device

Abstract

A light-emitting element used for display devices and illuminating devices has been formed on a flat substrate, and therefore, when the size of such devices is increased, manufacturing apparatuses also have to be enlarged. Also, a problem involved has been that even a failure of one light-emitting element causes the entire device to fail, making improvement of production yield difficult. To solve the above problems, in the present invention, light-emitting elements are formed as linear elements, and the linear elements are combined to form a plane light-emitting device. This enables the light-emitting device to be produced by selecting only linear light-emitting elements of good quality, and enlargement of apparatuses and enhancement of production yield can be expected.

1 . A light-emitting element comprised by a substrate, a gate electrode layer arranged on said substrate, a gate insulating layer arranged on said gate electrode layer, a first electrode arranged on said gate insulating layer, a light-emitting film arranged on said gate insulating layer and said first electrode and a second electrode arranged on said light-emitting film, characterized in that said second electrode is arranged diagonally above said first electrode or separated in the lateral direction with respect to said first electrode. 
   
   
       2 . A light-emitting element in  claim 1 , wherein an interval between said first electrode and said second electrode is −5 μm to 10 μm. 
   
   
       3 . A light-emitting element in  claim 1 , wherein an interval between said first electrode and said second electrode is 0.5 μm to 3 μm. 
   
   
       4 . A light-emitting element in  claim 1 , wherein said first electrode is an anode and said second electrode is a cathode. 
   
   
       5 . A light-emitting element in  claim 1 , wherein said first electrode is a cathode and said second electrode is an anode. 
   
   
       6 . A light-emitting element in  claim 4 , wherein said light-emitting film is a  3 -layer film made of a positive-hole transport layer, a light-emitting layer arranged on said positive-hole transport layer, and an electron transport layer arranged on said light-emitting layer. 
   
   
       7 . A light-emitting element in  claim 5 , wherein said light-emitting film is a 3-layer film made of an electron transport layer, a light-emitting layer arranged on said electron transport layer, and a positive-hole transport layer arranged on said light-emitting layer. 
   
   
       8 . A light-emitting element in  claim 4 , wherein said light-emitting film is a 4-layer film made of a positive-hole injection layer, a positive-hole transport layer arranged on said positive-hole injection layer, a light-emitting layer arranged on said positive-hole transport layer, and an electron transport layer arranged on said light-emitting layer. 
   
   
       9 . A light-emitting element in  claim 5 , wherein said light-emitting film is a 4-layer film made of an electron injection layer, a light-emitting layer arranged on said electron injection layer, a positive-hole transport layer arranged on said light-emitting layer, and a positive-hole injection layer arranged on said positive-hole injection layer. 
   
   
       10 . A light-emitting element in  claim 4 , wherein said light-emitting film is a  5 -layer film made of a positive-hole injection layer, a positive-hole transport layer arranged on said positive-hole injection layer, a light-emitting layer arranged on said positive-hole transport layer, an electron transport layer arranged on said light-emitting layer, and an electron injection layer arranged on said electron transport layer. 
   
   
       11 . A light-emitting element in  claim 5 , wherein said light-emitting film is a 5-layer film made of an electron injection layer, an electron transport layer arranged on said electron injection layer, a light-emitting layer arranged on said electron transport layer, a positive-hole transport layer arranged on said light-emitting layer, a positive-hole injection layer arranged on said positive-hole transport layer. 
   
   
       12 . A light-emitting device characterized in that a plurality of light-emitting elements made of a light-emitting element in  claim 1  are arranged in the array state. 
   
   
       13 . A light-emitting device in  claim 12 , wherein it is a display device. 
   
   
       14 . A light-emitting device in  claim 12 , wherein it is an illuminating device. 
   
   
       15 . A light-emitting element in  claim 1 , wherein a protective insulating film is arranged on said light-emitting film and said second electrode. 
   
   
       16 . A light-emitting element in  claim 1 , wherein a color filter film is arranged on said light-emitting film and said second electrode. 
   
   
       17 . A light-emitting element in  claim 3 , wherein said first electrode is an anode and said second electrode is a cathode. 
   
   
       18 . A light-emitting element in  claim 3 , wherein said first electrode is a cathode and said second electrode is an anode. 
   
   
       19 . A light-emitting device characterized in that a plurality of light-emitting elements made of a light-emitting element in  claim 2  are arranged in the array state. 
   
   
       20 . A light-emitting device characterized in that a plurality of light-emitting elements made of a light-emitting element in  claim 3  are arranged in the array state.