Display unit and electronic apparatus
View Patent ↗A display unit includes a plurality of light-emitting sections and an optical filter. The plurality of light-emitting sections emit color light beams having different colors. The optical filter is disposed on light emission side of the plurality of light-emitting sections, and transmits the color light beams while selectively removing a part of a wavelength band of the color light beams. The optical filter includes the first filter layer and the second filter layer. The first filter layer transmits a first band including a center wavelength out of the wavelength band of each of the color light beams, and removes a second band that is at least a part of a band other than the first band. The second filter layer reduces transmissivity of a third band that is a part of the first band of at least one color light beam out of the color light beams.
1. A display unit, comprising:
a plurality of light-emitting sections that emit respective color light beams, the color light beams having colors different from one another; and
an optical filter that is disposed on light emission side of the plurality of light-emitting sections and transmits the color light beams while selectively removing a part of a wavelength band of the color light beams, the optical filter including
a first filter layer that transmits a first band including a center wavelength out of the wavelength band of each of the color light beams, and removes a second band that is at least a part of a band other than the first band, and
a second filter layer that reduces transmissivity of a third band that is a part of the first band of at least one color light beam out of the color light beams.
2. The display unit according to claim 1 , further comprising a circularly polarizing plate provided on the light emission side of the plurality of light-emitting sections.
3. The display unit according to claim 1 , wherein the first filter layer and the second filter layer each include a dielectric multilayer film.
4. The display unit according to claim 3 , wherein the dielectric multilayer film includes a plurality of refractive index layers that are layered adjacently and have refractive indices different from one another.
5. The display unit according to claim 4 , wherein the plurality of refractive index layers have a volume average refractive index of 2.0 or higher.
6. The display unit according to claim 1 , wherein the first band and the second band are set to cause the first filter layer to narrow each of the wavelength bands of the color light beams emitted from the plurality of light-emitting sections and to transmit each of the narrowed wavelength bands of the color light beams.
7. The display unit according to claim 1 , wherein the third band is set to cause the second filter layer to offset fluctuation of at least one component of tristimulus values X, Y, and Z, the fluctuation occurring in association with increase in a viewing angle.
8. The display unit according to claim 1 , wherein the optical filter is disposed on the light emission side of the plurality of light-emitting sections, as a layer common to each of the plurality of light-emitting sections.
9. An electronic apparatus with a display unit, the display unit comprising:
a plurality of light-emitting sections that emit respective color light beams, the color light beams having colors different from one another; and
an optical filter that is disposed on light emission side of the plurality of light-emitting sections and transmits the color light beams while selectively removing a part of a wavelength band of the color light beams, the optical filter including
a first filter layer that transmits a first band including a center wavelength out of the wavelength band of each of the color light beams, and removes a second band that is at least a part of a band other than the first band, and
a second filter layer that reduces transmissivity of a third band that is a part of the first band of at least one color light beam out of the color light beams.
10. The electronic apparatus according to claim 9 , further comprising a circularly polarizing plate provided on the light emission side of the plurality of light-emitting sections.
11. The electronic apparatus according to claim 9 , wherein the first filter layer and the second filter layer each include a dielectric multilayer film.
12. The electronic apparatus according to claim 11 , wherein the dielectric multilayer film includes a plurality of refractive index layers that are layered adjacently and have refractive indices different from one another.
13. The electronic apparatus according to claim 12 , wherein the plurality of refractive index layers have a volume average refractive index of 2.0 or higher.
14. The electronic apparatus according to claim 9 , wherein the first band and the second band are set to cause the first filter layer to narrow each of the wavelength bands of the color light beams emitted from the plurality of light-emitting sections and to transmit each of the narrowed wavelength bands of the color light beams.
15. The electronic apparatus according to claim 9 , wherein the third band is set to cause the second filter layer to offset fluctuation of at least one component of tristimulus values X, Y, and Z, the fluctuation occurring in association with increase in a viewing angle.
16. The electronic apparatus according to claim 9 , wherein the optical filter is disposed on the light emission side of the plurality of light-emitting sections, as a layer common to each of the plurality of light-emitting sections.