Organic EL device
View Patent ↗An organic EL device includes an element region having a plurality of light-emitting elements, each including a first electrode disposed on a substrate body, a functional layer disposed above the first electrode, and a second electrode disposed above the functional layer; an enclosing member which surrounds the element region, covers the peripheral sides of the functional layers contained at least in the light-emitting elements located closest to the outer periphery of the substrate body among the plurality of light-emitting elements, and is disposed on the substrate body; a conductive member placed outside the enclosing member; and a connecting conductive member which is connected to the conductive member, extends from outside of the enclosing member over the enclosing member, and is connected to the second electrode. The connecting conductive member has a thickness larger than the thickness of the second electrode.
1. An organic EL device comprising:
an element region having a plurality of light-emitting elements, each including a first electrode disposed on a substrate body, a functional layer disposed above the first electrode, and a second electrode disposed above the functional layer;
an enclosing member which surrounds the element region, covers the peripheral sides of the functional layers contained at least in the light-emitting elements located closest to the outer periphery of the substrate body among the plurality of light-emitting elements, and is disposed on the substrate body;
a conductive member placed outside the enclosing member; and
a connecting conductive member which is connected to the conductive member, extends from outside of the enclosing member over the enclosing member, and is connected to the second electrode,
wherein the connecting conductive member has a thickness larger than the thickness of the second electrode.
2. The organic EL device according to claim 1 , wherein the thickness of the connecting conductive member is 120 nm or more, and the thickness of the second electrode is 20 nm or less.
3. The organic EL device according to claim 1 , wherein the thickness of the enclosing member is 1 μm or more.
4. The organic EL device according to claim 1 , wherein the angle between the outer side surface of the enclosing member on the outer peripheral side of the substrate body and the surface of the substrate body is 20 to 70 degrees.
5. The organic EL device according to claim 1 , wherein the connecting conductive member is composed of a material having a lower ionization tendency than the material for the second electrode.
6. The organic EL device according to claim 1 , wherein the connecting conductive member is composed of aluminum.
7. The organic EL device according to claim 1 , wherein the second electrode has a laminate structure including a metal thin film and a transparent conductive film.
8. The organic EL device according to claim 1 , wherein the organic EL device includes an electrode protection layer which covers the second electrode and the connecting conductive member, an organic buffer layer which is disposed on the electrode protection layer and covers a peripheral side surface of the enclosing member, and a gas barrier layer which covers the organic buffer layer and the electrode protection layer.
9. The organic EL device according to claim 8 , wherein the contact angle at the end of the organic buffer layer is 20 degrees or less.
10. The organic EL device according to claim 1 , wherein the conductive member is continuously disposed in the shape of a strip so as to surround the enclosing member, and the connecting conductive member is disposed in the shape of a strip so as to extend along the extending direction of the enclosing member.