ORGANIC EL DEVICE
The present invention provides an organic EL device that can ensure safety by automatic light emission of afterglow illumination even when the power is shut off due to a power failure, turning-off, or the like. The organic EL device ( 100 ) of the present invention includes a first substrate ( 110 ), an organic EL element part ( 120 ), and a charge storage part ( 130 ). The organic EL element part ( 120 ) and the charge storage part ( 130 ) are formed on one surface of the first substrate ( 110 ).
1 . An organic EL device comprising:
a first substrate;
an organic EL element part; and
a charge storage part, wherein
the organic EL element part and the charge storage part are formed on one surface of the first substrate.
2 . The organic EL device according to claim 1 , wherein
the charge storage part comprises a pair of electrodes and a dielectric, and
the charge storage part is a laminate in which one of the pair of electrodes, the dielectric, and the other of the pair of electrodes are stacked in this order.
3 . The organic EL device according to claim 1 , further comprising:
a rectification part formed on one surface of the first substrate.
4 . The organic EL device according to claim 3 , wherein
the rectification part comprises a pair of electrodes and an organic film, and
the rectification part is a laminate in which one of the pair of electrodes, the organic film, and the other of the pair of electrodes are stacked in this order.
5 . The organic EL device according to claim 1 , further comprising:
a current adjustment part that adjusts a current supplied from the charge storage part to the organic EL element part on one surface of the first substrate.
6 . The organic EL device according to claim 1 , further comprising:
a single-carrier unipolar element on one surface of the first substrate, wherein
the unipolar element is disposed in parallel in a direction opposite to a direction of a forward bias of the organic EL element part, and is disposed in series in the same direction as the direction of the forward bias of the organic EL element part.
7 . The organic EL device according to claim 1 , further comprising:
a second substrate; and
a seal layer, wherein
the first substrate and the second substrate are stacked such that the one surface of the first substrate and one surface of the second substrate face each other through the seal layer, and
the seal layer seals a gap between the first substrate and the second substrate over an entire end part where the first substrate and the second substrate face each other.
8 . The organic EL device according to claim 1 , wherein
the organic EL element part comprises a pair of electrodes and an organic EL layer.
9 . The organic EL device according to claim 8 , wherein
the organic EL element part is a laminate in which one of the pair of electrodes, the organic EL layer, and the other of the pair of electrodes are stacked in this order, and the electrode on a first substrate side is a transparent electrode.
10 . The organic EL device according to claim 8 , wherein
the organic EL element part is a laminate in which one of the pair of electrodes, the organic EL layer, and the other of the pair of electrodes are stacked in this order, and the electrode on a second substrate side is a transparent electrode.