Display device having a connection area outside the display area

Abstract

An object of the present invention is to provide a display device capable of narrowing the area of the frame. In order to achieve this object, the display device according to the present invention has a substrate having a plurality of arranged display elements and a wiring layer of a power source on the peripheral side; a bank layer for mutually separating the display elements; an electrode layer for covering the plurality of display elements and the bank layer; and a sealing substrate for further covering the electrode layer by joining the peripheral portion of the substrate and the sealing portion circling around the periphery via a joining element such as an adhesive; wherein the periphery of the sealing substrate is positioned inside the periphery of the substrate, and the peripheral portion of the electrode layer is connected to the wiring of the power source within the sealing portion.

What is claimed is: 
     
       1. A display device, comprising:
 a substrate including a plurality of display elements, a bank layer that separates each of the display elements, and a wiring layer;   a common electrode layer that is spread out to the periphery of the substrate and covers said plurality of display elements and said bank layer; and   a multilayer thin film for covering the substrate,   wherein a flat peripheral portion of the common electrode layer is laminated to a flat top face of the wiring layer through laminated flat conductive films which form a linear electrical connection area in plane, and the connection area is continuously positioned outside of the bank layer along sides of the substrate where a wiring tape is not connected, and the multilayer thin film extends beyond the connection area of the common electrode layer and the wiring layer.   
     
     
       2. The display device according to  claim 1 , wherein at least one thin film among the multilayer thin film has gas barrier properties or anti-environmental properties. 
     
     
       3. The display device according to  claim 1 , wherein the substrate is a square substrate, and the common electrode layer and the wiring layer are connected at one side of the substrate by laminating the common electrode layer and the wiring layer together using the laminated flat conductive films. 
     
     
       4. The display device according to  claim 1 , wherein the substrate is a square substrate, and the common electrode layer and the wiring layer are connected at two sides of the substrate by laminating the common electrode layer and the wiring layer together using the laminated flat conductive films. 
     
     
       5. The display device according to  claim 1 , wherein the substrate is a square substrate, and the common electrode layer and the wiring layer are connected at three sides of the substrate by laminating the common electrode layer and the wiring layer together using the laminated flat conductive films. 
     
     
       6. The display device according to  claim 1 , wherein the multilayer thin film includes an inorganic layer. 
     
     
       7. The display device according to  claim 6 , wherein the inorganic layer is made of a material selected from SiO 2 , SiN and SiON. 
     
     
       8. The display device according to  claim 1 , wherein the multilayer thin film includes an organic layer. 
     
     
       9. The display device according to  claim 8 , wherein the organic layer includes fluoric macromolecules. 
     
     
       10. The display device according to  claim 8 , wherein the organic layer is made of a material selected from polyethylene, polystyrene and polypropylene. 
     
     
       11. The display device according to  claim 1 , wherein the multilayer thin film is formed by laminating an organic layer/inorganic layer/organic layer. 
     
     
       12. The display device according to  claim 1 , wherein the multilayer thin film is formed by laminating an inorganic layer/organic layer/inorganic layer. 
     
     
       13. A manufacturing method of a display device, comprising:
 a step of forming at least a wiring layer at a part of the periphery of a substrate to which an electrical circuit is to be formed;   a step of forming an element separation layer comprising a plurality of grooves for mutually separating a plurality of display elements excluding an area over the wiring layer of the substrate;   a step of forming said display elements to each of the plurality of grooves of the element separation layer;   a step of forming a common electrode layer on the plurality of display elements, the element separation layer, and the wiring layer, respectively; and   a sealing step of directly forming a multilayer thin film above the common electrode layer and the substrate;   wherein a flat peripheral portion of the common electrode layer is laminated to a flat top face of the wiring layer through laminated flat conductive films which form a linear electrical connection area in plane; and the connection area is continuously positioned outside of the element separation layer along sides of the substrate where a wiring tape is not connected, and the multilayer thin film extends beyond the connection area.   
     
     
       14. An electro-optical apparatus, comprising:
 a first substrate having a first surface, a first side constituting a first part of a periphery of the first surface, and a second side constituting a second part of the periphery of the first surface and intersecting the first side;   a second substrate having a second surface facing the first surface;   a first electrode arranged between the first surface and the second surface;   a second electrode arranged between the first electrode and the second surface;   an organic light-emitting layer arranged between the first electrode and the second electrode;   a transistor arranged between the first surface and the first electrode, the transistor including a semiconductor layer and a gate layer arranged facing the semiconductor layer; and   a first conductive film having a first portion and a second portion, the first portion being arranged in the same layer as the gate layer and being arranged between the first electrode and the first side, the second portion being arranged in the same layer as the gate layer and between the first electrode and the second side;   the first substrate and second substrate being joined in a joint area arranged above the first surface; and   the first conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       15. The electro-optical apparatus as set forth in claim 14,
 the second electrode and the first conductive film being electrically connected to each other.    
     
     
       16. The electro-optical apparatus as set forth in claim 14,
 the first substrate further having a third side constituting the periphery of the first surface and facing the first side,   the first conductive film further having a third portion arranged between the first electrode and the third side, and   the first portion, second portion and third portion being connected to each other.    
     
     
       17. The electro-optical apparatus as set forth in claim 14, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a second conductive film arranged in the same layer as the source layer,   the second conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       18. The electro-optical apparatus as set forth in claim 14, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a second conductive film arranged in the same layer as the source layer,   the second conductive film being electrically connected to the first conductive film.    
     
     
       19. The electro-optical apparatus as set forth in claim 14, further comprising:
 a third conductive film arranged in the same layer as the first electrode, and   the third conductive film not overlapping the first electrode, but being electrically connected to the first conductive film.    
     
     
       20. The electro-optical apparatus as set forth in claim 14,
 the semiconductor layer being arranged between the gate layer and the first surface.    
     
     
       21. An electronic device, comprising:
 the electro-optical apparatus as set forth in claim 14.    
     
     
       22. An electro-optical apparatus, comprising:
 a first substrate having a first surface, a first side constituting a first part of a periphery of the first surface, and a second side constituting a second part of the periphery of the first surface and facing the first side;   a second substrate having a second surface facing the first surface;   a first electrode arranged between the first surface and the second surface;   a second electrode arranged between the first electrode and the second surface;   an organic light-emitting layer arranged between the first electrode and the second electrode;   a transistor arranged between the first surface and the first electrode, the transistor including a semiconductor layer and a gate layer arranged facing the semiconductor layer; and   a plurality of conductive films arranged in the same layer as the gate layer;   the first substrate and second substrate being joined in a joint area arranged above the first surface;   the plurality of conductive films having a first conductive film and a second conductive film, the first conductive film being arranged between the first electrode and the first side, the second conductive film being arranged between the first electrode and the second side, and   the first conductive film and the second conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       23. The electro-optical apparatus as set forth in claim 22,
 the second electrode and the plurality of conductive films being electrically connected to each other.    
     
     
       24. The electro-optical apparatus as set forth in claim 22,
 the first substrate further having a third side constituting the periphery of the first surface and intersecting the first side and second side,   the plurality of conductive films further having a third conductive film arranged between the first electrode and the third side, and   the first conductive film, the second conductive film, and the third conductive film being separated from each other.    
     
     
       25. The electro-optical apparatus as set forth in claim 22, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a fourth conductive film arranged in the same layer as the source layer,   the fourth conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       26. The electro-optical apparatus as set forth in claim 22, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a fourth conductive film arranged in the same layer as the source layer,   the fourth conductive film being electrically connected to the plurality of conductive films.    
     
     
       27. An electronic device, comprising:
 the electro-optical apparatus as set forth in claim 22.    
     
     
       28. An electro-optical apparatus, comprising:
 a first substrate having a first surface and a first side constituting a periphery of the first surface;   a second substrate having a second surface facing the first surface;   a first electrode arranged between the first surface and the second surface;   a second electrode arranged between the first electrode and the second surface;   an organic light-emitting layer arranged between the first electrode and the second electrode;   a transistor arranged between the first surface and the first electrode, the transistor including a semiconductor layer and a gate layer arranged facing the semiconductor layer; and   a plurality of conductive films arranged in the same layer as the gate layer;   the first substrate and second substrate being joined in a joint area arranged above the first surface; and   the plurality of conductive films having a first conductive film and a second conductive film, the first conductive film and the second conductive film being arranged between the first electrode and the first side,   the first conductive film and the second conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       29. The electro-optical apparatus as set forth in claim 28,
 the second electrode and the plurality of conductive films being electrically connected to each other.    
     
     
       30. The electro-optical apparatus as set forth in claim 28,
 the first conductive film and the second conductive film being separated from each other.    
     
     
       31. The electro-optical apparatus as set forth in claim 28, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a third conductive film arranged in the same layer as the source layer,   the third conductive film being arranged so as not to overlap the first electrode, but to overlap the joint area.    
     
     
       32. The electro-optical apparatus as set forth in claim 28, further comprising:
 a source layer arranged between the gate layer and the first electrode; and   a third conductive film arranged in the same layer as the source layer,   the third conductive film being electrically connected to the plurality of conductive films.    
     
     
       33. An electronic device, comprising:
 the electro-optical apparatus as set forth in claim 28.