Organic electroluminescent device and electronic apparatus
An electroluminescent device includes a scanning line that extends in a first direction, a light emitting element, a driving transistor that supplies a driving current to the light emitting element, a first conductive layer that is supplied a fixed potential and extends in the first direction, a second conductive layer that is supplied the fixed potential and is disposed on a different layer than the first conductive layer, and a third conductive layer that is electrically connected to a first terminal of the driving transistor and to the light emitting element, and is disposed on a same layer as the second conductive layer. The third conductive layer is surrounded by the second conductive layer in plan view.
1. An electroluminescent device, comprising:
a scanning line that extends in a first direction;
a light emitting element;
a driving transistor that supplies a driving current to the light emitting element;
a first conductive layer that is supplied a fixed potential and extends in the first direction;
a second conductive layer that is supplied the fixed potential and is disposed on a different layer than the first conductive layer; and
a third conductive layer that is electrically connected to a first terminal of the driving transistor and to the light emitting element, and is disposed on a same layer as the second conductive layer,
wherein the third conductive layer is surrounded by the second conductive layer in plan view.
2. The electroluminescent device according to claim 1 , further comprising:
a signal line that extends in a second direction that intersects the first direction; and
a selection transistor that is electrically connected to the signal line and to the driving transistor, the selection transistor including a gate that is connected to the scanning line,
wherein the second conductive layer includes a portion that overlaps with the selection transistor.
3. The electroluminescent device according to claim 2 , wherein
the second conductive layer includes a portion that overlaps with the signal line.
4. The electroluminescent device according to claim 1 , wherein
the second conductive layer includes a portion that overlaps with the driving transistor.
5. The electroluminescent device according to claim 1 , further comprising:
a signal line that extends in a second direction that intersects the first direction; and
a selection transistor that is electrically connected to the signal line and to the driving transistor, the selection transistor including a gate that is connected to the scanning line,
wherein the signal line has a portion that overlaps with the selection transistor.
6. An electroluminescent device, comprising:
a scanning line that extends in a first direction;
a light emitting element;
a driving transistor that supplies a driving current to the light emitting element;
a first conductive layer that is supplied a fixed potential and extends in the first direction;
a second conductive layer that is electrically connected to a gate of the driving transistor; and
a third conductive layer that is supplied the fixed potential and is disposed on a different layer than the first conductive layer;
wherein the second conductive layer is surrounded by the third conductive layer in plan view.
7. The electroluminescent device according to claim 6 , further comprising:
a fourth conductive layer that is electrically connected to a first terminal of the driving transistor and to the light emitting element, and is disposed on a same layer as the third conductive layer,
wherein the fourth conductive layer is surrounded by the third conductive layer in plan view.
8. An organic electroluminescent device, comprising:
a first transistor;
a power supply line layer connected to one current terminal of the first transistor;
an organic electroluminescent element that emits light with luminance corresponding to magnitude of a current supplied via the first transistor; and
a capacitive element formed by at least
a first pair of electrodes stacked in a stacking direction with a first dielectric film disposed therebetween, and
a second pair of electrodes disposed on a same layer in a planar direction with a second dielectric film disposed therebetween,
such that the capacitive element is formed both in a stacking direction and a planar direction,
wherein the second pair of electrodes include a first electrode and a second electrode, the first electrode connected to a gate of the first transistor,
wherein the first electrode is arranged in a position away from the second electrode with the second dielectric film interposed therebetween in a plan view,
wherein the second electrode is connected to the power supply line layer, and
wherein the capacitive element includes a third electrode that is connected to the power supply line layer.
9. The organic electroluminescent device according to claim 8 , wherein
the power supply line layer is provided on a layer that is above the second electrode and the third electrode,
the second electrode is connected to the power supply line layer via a first conduction portion, and
the third electrode is connected to the power supply line layer via a second conduction portion.
10. The organic electroluminescent device according to claim 9 , further comprising:
a fourth electrode connected to the gate of the first transistor, wherein
the fourth electrode is arranged on a layer under the third electrode, and is arranged in a position overlapping at least a portion of the third electrode in plan view.
11. An electroluminescent device, comprising:
a light emitting element;
a driving transistor that supplies a driving current corresponding to a gradation voltage to the light emitting element;
a first conductive layer that is electrically connected to a gate of the driving transistor;
a second conductive layer that is supplied a fixed potential and that is disposed on a same layer as the first conductive layer, wherein the first conductive layer and the second conductive layer are disposed apart and electrically insulated from one another via a first dielectric film, the first dielectric film being disposed between the first conductive layer and the second conductive layer in plan view;
a third conductive layer that is electrically connected to the gate of the driving transistor;
a fourth conductive layer that is supplied the fixed potential and that is disposed in a different layer than the third conductive layer; and
a second dielectric film disposed in a layer between the third conductive layer and the fourth conductive layer.
12. The electroluminescent device according to claim 11 , wherein
a capacitive element holds a voltage corresponding to the gradation voltage and is formed by:
the first conductive layer and the second conductive layer; and
the third conductive layer and the fourth conductive layer.