| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive organic EL device having a high-reliability sealing structure. SOLUTION: This organic EL device 1 has an element board 2 having an organic EL element 3 formed on its inside surface, and a sealing board 7 facing to the organic EL element with a predetermined clearance and is provided with an adhesive 11 between the circumferential parts of both the boards. A frame-like inside barrier rib 8 is disposed between the element board 2 and the sealing board 7 and circularly surrounds the EL element 3, and in the inside thereof, a water catching part 10 is formed on the inside surface side of the sealing board 7. An outside barrier rib 9 surrounding the inside barrier rib in a frame-like form is formed between the circumferential parts of the element board 2 and the sealing board 7, the adhesive 11 is filled between the inside barrier rib 8 and the outside barrier rib 9 to bond both the boards to each other. The need of a metal cap for covering the organic EL element is obviated. The barrier ribs can be formed of low-melting point glass, and moisture permeability of the bonded surfaces thereof is small so that the reliability thereof is high. Since the water catching part and the sealant are partitioned by the inside barrier rib, the application region of a water catching agent dissolved in a solvent can be limited and the reliability of the sealing is never deteriorated. |
