Optical device, display device, and electronic apparatus

1. A display device comprising, in order:

an image display section configures to emit image display light having a first polarization axis;

a beam splitter configured to transmit a portion of the image display light and reflect another portion of the image display light;

a first dimmer member configured to switch between a first mode and a second mode, the first mode causing first light having the first polarization axis to be transmitted at a first transmittance and causing second light having a second polarization axis to be transmitted at a second transmittance that is lower than the first transmittance, the second mode causing the first light and the second light to be transmitted at a third transmittance that is higher than the first transmittance; and

a second dimmer member configured to adjust a scattering intensity of transmitted light transmitted therethrough.

2. The display device according to claim 1 , wherein the portion of the image display light that is transmitted through the beam splitter has the first polarization axis.

3. The display device according to claim 1 , wherein the second dimmer member is configured to switch between a third mode and a fourth mode, the third mode exhibiting a first scattering intensity for the transmitted light transmitted therethrough, the fourth mode exhibiting a second scattering intensity for the transmitted light transmitted therethrough, the second scattering intensity being lower than the first scattering intensity.

4. The display device according to claim 1 , wherein the first dimmer member has a structure in which a first transparent electrode, a guest-host type liquid crystal layer including a guest-host type liquid crystal, and a second transparent electrode are stacked in order.

5. The display device according to claim 1 , wherein the second dimmer member has a structure in which a third transparent electrode, a polymer dispersed liquid crystal layer, and a fourth transparent electrode are stacked in order.

6. The display device according to claim 5 , wherein the second dimmer member includes a first region in which the polymer dispersed liquid crystal layer has a first thickness and a second region in which the polymer dispersed liquid crystal layer has a second thickness.

7. The display device according to claim 1 , wherein the second dimmer member has scattering intensity distribution within a plane intersecting a transmission direction in which the transmitted light is transmitted.

8. The display device according to claim 1 , wherein at least one of the first dimmer member or the second dimmer member contains a pigment material.

9. The display device according to claim 1 , wherein the switching between the first mode and the second mode in the first dimmer member is selectively implementable in a partial region within a plane intersecting a transmission direction in which the image display light is transmitted.

10. The display device according to claim 3 , wherein the switching between the third mode and the fourth mode in the second dimmer member is selectively implementable in a partial region within a plane intersecting a transmission direction in which the transmitted light is transmitted.

11. The display device according to claim 3 , wherein

the switching between the first mode and the second mode in the first dimmer member is selectively implementable in a partial region within a plane intersecting a transmission direction in which the image display light is transmitted, and

the switching between the third mode and the fourth mode in the second dimmer member is selectively implementable in a partial region within a plane intersecting a transmission direction in which the transmitted light is transmitted.

12. An optical device comprising, in order:

a beam splitter configured to transmit a portion of incident light and reflect another portion of the incident light;

a first dimmer member configured to switch between a first mode and a second mode, the first mode causing a first transmittance for first light having a first polarization axis to be higher than a second transmittance for second light having a second polarization axis that is different from the first polarization axis, the second mode causing the first transmittance and the second transmittance to be substantially equal to each other; and

a second dimmer member configured to adjust a scattering intensity of transmitted light transmitted therethrough.

13. An electronic apparatus comprising a display device, the display device including, in order

an image display section configured to emit image display light having a first polarization axis,

a beam splitter configured to transmit a portion of the image display light and reflect another portion of the image display light,

a first dimmer member configured to switch between a first mode and a second mode, the first mode causing first light having the first polarization axis to be transmitted at a first transmittance and causing second light having a second polarization axis to be transmitted at a second transmittance that is lower than the first transmittance, the second mode causing the first light and the second light to be transmitted at a third transmittance that is higher than the first transmittance, and

a second dimmer member configured to adjust a scattering intensity of transmitted light transmitted therethrough.