Touch panel, method of manufacturing touch panel, and optical thin film
A touch panel of the present invention includes a touch panel substrate, a cover substrate provided to overlap the touch panel, and a connection part including a scattering layer laminated from the cover substrate side toward the touch panel substrate side and is provided between the touch panel substrate and the cover substrate in an area other than a display area.
1. A touch panel comprising:
a touch panel substrate;
a cover substrate provided to overlap the touch panel substrate; and
a white connection part including a white scattering layer laminated from the cover substrate side toward the touch panel substrate side and being provided between the touch panel substrate and the cover substrate in an area other than a display area, wherein
the white scattering layer is formed from a multilayered structure in which a first dielectric layer and a second dielectric layer are alternately laminated,
a film thickness of each of the first dielectric layer and the second dielectric layer is equal to or less than 10 nm, and
in the multilayered structure of the white scattering layer, the number of dielectric laminates formed of the first dielectric layer and the second dielectric layer is equal to or more than 50, and wherein
the white connection part includes the white scattering layer and a reflection layer formed to cover the white scattering layer,
the reflection layer is formed as a multilayered structure constituted of a first reflection layer and a second reflection layer,
the multilayered structure of the reflection layer is made of the same material as that of the multilayered structure of the white scattering layer,
a thickness of the first reflection layer is 10 times or more that of the first dielectric layer, and
a thickness of the second reflection layer is 10 times or more that of the second dielectric layer.
2. An optical thin film comprising:
a white scattering layer formed from a multilayered structure in which a first dielectric layer and a second dielectric layer are alternately laminated;
a film thickness of each of the first dielectric layer and the second dielectric layer is equal to or less than 10 nm; and
a reflection layer provided to cover the white scattering layer, wherein
in the multilayered structure of the white scattering layer, the number of dielectric laminates formed of the first dielectric layer and the second dielectric layer is equal to or more than 50, and wherein
the reflection layer is formed as a multilayered structure constituted of a first reflection layer and a second reflection layer,
the multilayered structure of the reflection layer is made of the same material as that of the multilayered structure of the white scattering layer,
a thickness of the first reflection layer is 10 times or more that of the first dielectric layer, and
a thickness of the second reflection layer is 10 times or more that of the second dielectric layer.
3. The optical thin film according to claim 2 , wherein the optical thin film is formed on a transparent substrate.
4. The optical thin film according to claim 3 , wherein the transparent substrate is formed of glass or a resin.