Organic electro-luminescence element used in a display device
View Patent ↗An organic electro-luminescence (EL) element used for a display device has a glass substrate having a luminescent device on the inner surface, a drying layer formed on the rim of the inner surface of the glass substrate, a sealing layer formed on the rim of the inner surface of the glass substrate and surrounding the drying layer, and a sealing case bonded to the rim of the glass substrate to form an airtight space.
1. An organic electro-luminescence (EL) element comprising:
a glass substrate having a luminescent device on an inner surface;
a drying layer adhered to a rim of the inner surface of the glass substrate without contact with the luminescent device, wherein the drying layer includes UV-curing resin;
a sealing layer formed on the rim of the inner surface of the glass substrate and surrounding the drying layer; and
a sealing case bonded to the rim of the glass substrate to form an airtight space.
2. The organic EL element according to claim 1 , wherein the drying layer includes a composite material which is inorganic material or organic material.
3. The organic EL element according to claim 2 , wherein the composite material comprises silicon, Al 2 O 3 , CaO or SiO 2 .
4. The organic EL element according to claim 1 , wherein the drying layer comprises an adhesion agent and a composite material with adsorption of moisture, oxygen or impurities.
5. The organic EL element according to claim 1 , wherein the sealing case is bonded only to the rim of the inner surface of the glass substrate to form an airtight space.
6. An organic EL element comprising:
a glass substrate having a luminescent device on an inner surface;
a drying layer formed on a rim of the inner surface of the glass substrate;
a sealing layer formed on the rim of the inner surface of the glass substrate and surrounding the drying layer; and
a sealing case bonded to the rim of the glass substrate to form an airtight space, wherein the sealing case includes:
an inner wall exposed to the airtight space;
a trench on the inner wall;
a hydrophobic layer in the bottom of the trench;
an adhesion layer formed on the rim of the opening of the trench; and
a semi-permeable film with moisture permeability without water permeability covering the opening of the trench and bonded by the adhesion layer.
7. The organic EL element according to claim 6 , wherein the adhesion layer comprises an adhesion agent and a composite material with absorption of moisture, oxygen or impurities.
8. The organic EL element according to claim 7 , wherein the adhesion agent is UV-curing resin.
9. The organic EL element according to claim 7 , wherein the composite material is inorganic material or organic material.
10. The organic EL element according to claim 7 , wherein the composite material comprises silicon, Al 2 O 3 , CaO or SiO 2 .
11. The organic EL element according to claim 6 , wherein the luminescent device is a lamination body formed by at least a cathode layer, an organic luminescent material layer and an anode layer.
12. An organic electro-luminescence (EL) element comprising:
a glass substrate having a luminescent device on an inner surface;
a loop of drying layer formed only on a rim of the inner surface of the glass substrate without contact with the luminescent device, in which the drying layer comprises an adhesion agent and a composite material with adsorption of moisture, oxygen or impurities, where in the adhesion agent is UV-curing resin;
a sealing layer formed on the rim of the inner surface of the glass substrate and surrounding the drying layer; and
a sealing case bonded to the rim of the glass substrate to form an airtight space.
13. The organic EL element according to claim 12 , wherein the composite material is inorganic material or organic material.
14. The organic EL element according to claim 12 , wherein the composite material comprises silicon, Al 2 O 3 , CaO or SiO 2 .
15. The organic EL element according to claim 12 , wherein the luminescent device is a lamination body formed by at least a cathode layer, an organic luminescent material layer and an anode layer.
16. The organic EL element according to claim 12 , wherein the sealing case is bonded only to the rim of the inner surface of the glass substrate to form an airtight space.
17. An organic electro-luminescence (EL) element comprising:
a first substrate having a luminescent device on an inner surface;
a loop of drying layer adhered to a rim of the inner surface of the first substrate, wherein the drying layer includes UV-curing resin;
a loop of sealing layer formed on the inner surface of the first substrate and surrounding the drying layer; and
a sealing substrate bounded to the rim of the first substrate to form an airtight space.
18. The organic EL element according to claim 17 , wherein the drying layer comprises an adhesion agent and a composite material with adsorption of moisture, oxygen or impurities.
19. The organic EL element according to claim 18 , wherein the composite material comprises silicon, Al 2 O 3 , CaO or SiO 2 .
20. The organic EL element according to claim 17 , wherein the drying layer includes a composite material which is inorganic material or organic material.
21. The organic EL element according to claim 17 , wherein the sealing substrate is bonded by the loop of drying layer and sealing layer to form an airtight space.