Organic electroluminescence device with sealing glass portions and sealing resin portions and method for producing organic electroluminescence device
View Patent ↗An organic electroluminescence device, includes: an element substrate; a light emitting unit formed on the element substrate; a sealing substrate; and a sealing portion surrounding at least the light emitting unit and disposed between the element substrate and the sealing substrate, the sealing portion having sealing glass portions and sealing resin portions.
1. An organic electroluminescence device, comprising:
an element substrate;
a light emitting unit formed above the element substrate;
a sealing substrate; and
a sealing portion surrounding at least the light emitting unit and disposed between the element substrate and the sealing substrate, the sealing portion having sealing glass portions and sealing resin portions, wherein
the sealing portion is formed into a rectangular shape in plan view, and
the sealing resin portions are disposed between adjacent sealing glass portions in plan view.
2. The organic electroluminescence device according to claim 1 , wherein the sealing resin portion is provided to at least one portion in each of two sides facing each other of the sealing portion formed into the rectangular shape.
3. The organic electroluminescence device according to claim 1 , wherein the sealing portion formed into the rectangular shape has long sides facing each other and short sides facing each other; and
the sealing resin portion is provided to at least one portion in each of the long sides.
4. The organic electroluminescence device according to claim 1 , wherein the sealing resin portion is provided to at least one portion of each of four sides of the sealing portion formed into the rectangular shape.
5. The organic electroluminescence device according to claim 1 , wherein the sealing resin portions are provided to four corners of the sealing portion formed into the rectangular shape.
6. The organic electroluminescence device according to claim 1 , wherein the sealing resin portions are formed at a center of each side of the sealing portion such that the sealing glass portions are equal in length.
7. The organic electroluminescence device according to claim 1 , wherein a desiccant is disposed in a space sealed by the sealing portion between the element substrate and the sealing substrate.
8. A method for producing an organic electroluminescence device, comprising:
forming a light emitting unit above an element substrate;
forming sealing glass portions on a sealing substrate at a given interval;
bonding the element substrate and the sealing substrate in such a manner that a side of the element substrate on which the light emitting unit is formed faces the sealing substrate; and
forming sealing resin portions between the sealing glass portions which are adjacent to each other in the state where the element substrate and the sealing substrate are bonded to each other, wherein
a sealing portion including the sealing glass portions and sealing resin portions define a rectangular shape in plan view, and
the sealing resin portions are disposed between adjacent sealing glass portions in plan view.
9. The method for producing an organic electroluminescence device according to claim 8 , wherein the process of forming the sealing glass portions on the sealing substrate includes disposing glass resin material containing a glass material at a given interval on the sealing substrate, and then curing the glass resin material.
10. The method for producing an organic electroluminescence device according to claim 8 , wherein the process of bonding the element substrate and the sealing substrate includes melt-bonding the element substrate and the sealing substrate to each other by irradiating the sealing glass portions with laser light in the state where the element substrate and the sealing substrate are bonded to each other.
11. The method for producing an organic electroluminescence device according to claim 10 , wherein the sealing glass portions are colored.
12. The method for producing an organic electroluminescence device according to claim 10 , wherein the sealing glass portions contain a transition metal.
13. The method for producing an organic electroluminescence device according to claim 8 , wherein the process of forming the sealing resin portions includes disposing liquid resin adhesive between the sealing glass portions which are adjacent to each other, and curing the resin adhesive.