Electro-optical device, method of manufacturing the same, and image forming apparatus
View Patent ↗An electro-optical device in which a plurality of light-emitting elements including a first electrode layer, a second electrode layer, and a light-emitting functional layer emitting light in accordance with a voltage between the first electrode layer and the second electrode layer are arranged, the device including: a main substrate; the first electrode layer disposed on the main substrate; the light-emitting functional layer disposed on the first electrode layer; the second electrode layer disposed on the light-emitting functional layer; a plurality of lines which is formed below the light-emitting functional layer on the main substrate and which supplies current to the light-emitting elements or controls the light-emitting elements; a conductor for connecting one of the lines to the second electrode layer; and an insulating protective layer which is formed below the light-emitting functional layer and above the first electrode layer and the lines and which partially covers the lines.
1. An electro-optical device comprising:
a substrate;
a first line over the substrate;
a protective layer formed on the first line;
a first through-hole formed through the protective layer on the first line;
a conductor bonded to the first line through the first through-hole; and
a light emitting element including:
a first electrode layer formed over the substrate;
a light-emitting functional layer formed on the first electrode layer, and formed above a layer of the first line; and
a second electrode layer formed on the light-emitting functional layer and bonded to the conductor, wherein
the conductor surrounds whole the second electrode layer.
2. The electro-optical device according to claim 1 , further comprising:
a second through-hole formed through the protective layer on the first line, and located at a first area where the second electrode layer is not formed.
3. The electro-optical device according to claim 1 , further comprising:
a thin film transistor formed over the substrate, and formed below the first electrode layer,
a second line controlling the thin film transistor,
a third through-hole formed through the protective layer on the second line, and located at a second area where the second electrode layer is not formed.
4. The electro-optical device according to claim 1 , further comprising:
a sealing resin formed on the second electrode layer, wherein
the conductor is bonded to a third area of the second electrode layer, where the sealing resin is not bonded to.
5. An image forming apparatus comprising:
an image carrier;
a charging unit for electrically charging the image carrier;
the electro-optical device of claim 1 in which a plurality of the light-emitting elements are arranged and light is irradiated to a charged surface of the image carrier by the use of the plurality of light-emitting elements to form a latent image;
a developing unit for forming a toner image on the image carrier by attaching a toner to the latent image; and
a transfer unit for transferring the toner image to a body from the image carrier.
6. An image forming apparatus comprising:
an image carrier;
a charging unit for electrically charging the image carrier;
the electro-optical device of claim 2 in which a plurality of the light-emitting elements are arranged and light is irradiated to a charged surface of the image carrier by the use of the plurality of light-emitting elements to form a latent image;
a developing unit for forming a toner image on the image carrier by attaching a toner to the latent image; and
a transfer unit for transferring the toner image to a body from the image carrier.
7. An image forming apparatus comprising:
an image carrier;
a charging unit for electrically charging the image carrier;
the electro-optical device of claim 3 in which a plurality of the light-emitting elements are arranged and light is irradiated to a charged surface of the image carrier by the use of the plurality of light-emitting elements to form a latent image;
a developing unit for forming a toner image on the image carrier by attaching a toner to the latent image; and
a transfer unit for transferring the toner image to a body from the image carrier.
8. An image forming apparatus comprising:
an image carrier;
a charging unit for electrically charging the image carrier;
the electro-optical device of claim 4 in which a plurality of the light-emitting elements are arranged and light is irradiated to a charged surface of the image carrier by the use of the plurality of light-emitting elements to form a latent image;
a developing unit for forming a toner image on the image carrier by attaching a toner to the latent image; and
a transfer unit for transferring the toner image to a body from the image carrier.