Display device with stacked layer body
View Patent ↗A display device includes a substrate having, on a major surface thereof, a display area including a plurality of pixels for displaying an image, and a stacked layer body that is formed by stacking a first thin film, which is disposed to cover the display area, a second thin film, which partly covers the first thin film, and a third thin film, which covers the second thin film and is formed with a larger pattern than the first thin film. The third thin film contacts a peripheral part of the first thin film and covers the first thin film.
1. A display device comprising:
a first substrate including, on a major surface thereof, a display area including a plurality of pixels for displaying an image, each of the plurality of pixels having a first electrode, a second electrode, and an optical active layer, the first electrode is located above the first substrate, the second electrode is located above and facing the first electrode, and the optical active layer is disposed between the first electrode and the second electrode; and
a stacked layer body located above the major surface of the first substrate and having a first thin film, a second thin film, and a third thin film, the first thin film is configured to cover the plurality of pixels, the second thin film is located above the first thin film and includes an upper surface and a side surface, and the third thin film is located above the upper surface of the second thin film and is configured to cover the upper surface and the side surface of the second thin film, and the area of the stacked layer body being smaller than the area of the major surface of the first substrate; and
a second substrate located above the third thin film of the stacked layer body,
wherein the first thin film and the third thin film are formed of an inorganic material,
the second thin film is formed of an organic material, and
the third thin film contacts a peripheral part of the first thin film and covers the first thin film.
2. The display device according to claim 1 , wherein the first thin film and the third thin film are formed of the same material.
3. The display device according to claim 1 , wherein the second thin film is formed to have a greater thickness than each of the first thin film and the third thin film.
4. The display device according to claim 1 , wherein the third thin film extends on the major surface of the substrate in a frame-like shape.
5. The display device according to claim 4 , wherein a width, by which the third thin film extends on the major surface of the substrate, is equal to or greater than a thickness of the first thin film.
6. The display device according to claim 1 , wherein the stacked layer body further includes a fourth thin film and a fifth thin film, the fourth thin film is located above the third thin film and having an upper surface and a side surface, and the fifth thin film is located above the upper surface of the fourth thin film and is configured to cover the upper surface and the side surface of the fourth thin film.
7. The display device according to claim 6 , wherein the fifth thin film extends on the major surface of the substrate in a frame-like shape.
8. The display device according to claim 1 , wherein the second electrode is disposed commonly to the pixels.