Reflective display device and electronic device
View Patent ↗The invention provides a quick-response reflective display device that has increased display brightness and contrast and that achieves high display quality. In a reflective display device of the present invention, a plurality of stages are disposed on a substrate so that the angles thereof with the substrate are variable, a hologram element (reflective element) to transmit light incident from a specific direction and reflect light having a specific wavelength incident from a specific direction is formed on a surface of each of the stages opposite from the substrate, an optical absorber to absorb light passing through each hologram element is formed on a side of the hologram element opposite from the light incident side, and a plurality of hologram elements are disposed so as to reflect light components having different wavelengths.
1. A reflective display device, comprising:
a substrate;
a plurality of stages disposed on the substrate, each stage having a surface and being movable to change an angle of the surface with respect to said substrate;
reflective elements, to transmit light incident from a specific direction and reflect light having a specific wavelength that is incident from a specific direction, formed on respective surfaces, opposite from said substrate, of said stages, said reflective elements being of a plurality of types to reflect light components having different wavelengths; and
an optical absorber, to absorb light passing through each of said reflective elements, formed on a side of said reflective element opposite from a light incident side.
2. A reflective display device, comprising:
a substrate;
a plurality of stages disposed on the substrate, each stage having a surface and being movable to change an angle of the surface with respect to said substrate;
reflective elements, to transmit light incident from a specific direction and reflect light having a specific wavelength that is incident from a specific direction, formed on respective surfaces, opposite from said substrate, of said stages, said reflective elements reflecting light components having different wavelengths, depending on the incident direction of light incident thereon; and
an optical absorber, to absorb light passing through each of said reflective elements formed on a side of said reflective element opposite from a light incident side.
3. The reflective display device according to claim 1 , further including an illumination device to emit light in a specific direction is disposed on the side of said reflective elements opposite from said substrate.
4. The reflective display device according to claim 1 , said reflective element being a hologram element.
5. An electronic device, comprising:
the reflective display device according to claim 1 .
6. The reflective display device according to claim 2 , further including an illumination device to emit light in a specific direction is disposed on the side of said reflective elements opposite from said substrate.
7. The reflective display device according to claim 2 , said reflective element being a hologram element.
8. The reflective display device according to claim 3 , said reflective element being a hologram element.
9. An electronic device, comprising:
the reflective display device according to claim 2 .
10. An electronic device, comprising:
the reflective display device according to claim 3 .
11. An electronic device, comprising:
the reflective display device according to claim 4 .