Display device with transparent capacitor
A display device is provided including a plurality of pixels, wherein the plurality of pixels is arranged in a matrix form, wherein each of the plurality of pixels has an emission region and a transparent region, and wherein the emission region has a light-emitting element, and the transparent region has at least a part of a storage capacitor having transparency and is covered with at least one electrode of the storage capacitor, a first electrode covers the plurality of pixels, a light-emitting layer is arranged below the first electrode, a second electrode is arranged below the light-emitting layer, and the storage capacitor includes the first electrode.
1. A display device comprising:
a first substrate having transparency;
a plurality of pixels arranged in a matrix form on the first substrate; and
a second substrate having transparency on the plurality of pixels,
the plurality of pixels each comprises:
a non-transparency region including a first transistor, a second transistor connected to the first transistor, and a light-emitting element connected to the second transistor on the first transistor and the second transistor; and
a transparency region including a capacitor connected to the second transistor, wherein
the light emitting element includes an anode, a light-emitting layer on the anode, and a cathode on the light-emitting layer,
the anode includes a light reflection layer,
the cathode has transparency,
the anode overlaps the first transistor and the second transistor,
the light-emitting element emits light in a direction from the light-emitting layer toward the second substrate,
the first transistor and the second transistor are arranged between the first substrate and the anode,
each of the pixels has a first layer which includes the first transistor and the second transistor, a second layer which includes an insulation film and is arranged on the first layer, and a third layer which includes the light-emitting element and is arranged on the second layer,
the second layer has an aperture where the second layer is removed in the transparency region, and
the capacitor covers a side portion of the second layer which is exposed to the aperture.
2. The display device according to claim 1 , wherein
the first layer has an aperture where the first layer is removed in the transparency region, and
the capacitor covers a side portion of the first layer which is exposed to the aperture.
3. The display device according to claim 1 , wherein
the capacitor has a first portion formed in the non-transparency region and a second portion formed in the transparency region,
the first portion is arranged between the third layer and the second layer in the non-transparency region, and
the second portion covers the side portion of the second layer in the transparency region.
4. The display device according to claim 1 , wherein
the capacitor has a pair of transparency electrodes in the transparency region.
5. A display device comprising:
a first substrate having transparency;
a plurality of pixels arranged in a matrix form on the first substrate; and
a second substrate having transparency on the plurality of pixels,
the plurality of pixels each comprises:
a non-transparency region including a light-emitting element; and
a transparency region including a capacitor,
wherein
the light emitting element includes an anode, a light-emitting layer on the anode, and a cathode on the light-emitting layer,
the anode includes a light reflection layer,
the cathode has transparency,
the light-emitting element emits light in a direction from the light-emitting layer toward the second substrate,
each of the pixels has a first layer which includes an inorganic insulation film, a first transistor, and a second transistor, a second layer which includes an insulation film and is arranged on the first layer, and a third layer which includes the light-emitting element and is arranged on the second layer,
the second layer has an aperture where the second layer is removed in the transparency region, and
the capacitor covers a side portion of the second layer which is exposed to the aperture.
6. The display device according to claim 5 , wherein
the first layer has an aperture where the first layer is removed in the transparency region, and
the capacitor covers a side portion of the first layer which is exposed to the aperture.
7. The display device according to claim 5 , wherein
the capacitor has a first portion formed in the non-transparency region and a second portion formed in the transparency region,
the first portion is arranged between the third layer and the second layer in the non-transparency region, and
the second portion covers the side portion of the second layer in the transparency region.
8. The display device according to claim 5 , wherein
the capacitor has a pair of transparency electrodes in the transparency region.