Image display device and projector

1. An image display device, comprising:

a light source;

a first light modulation element that modulates a light emitted from the light source based on display image data;

a second light modulation element that is disposed on an optical path in series with the first light modulation element and that modulates a light exiting from the first light modulation element; and

an opening in a unit pixel of the first light modulation element and an opening in a unit pixel of the second light modulation element being of analogous shapes; and

the first light modulation element and the second light modulation element being disposed to be rotationally symmetric by 180° about an optical axis.

2. The image display device according to claim 1 , further comprising:

an image forming system that forms an optical image of the first light modulation element on a light-receiving surface of the second light modulation element.

3. The image display device according to claim 2 ,

the image forming system being an inverted image forming portion;

a size of the opening in the unit pixel of the second light modulation element with respect to a size of the opening in the unit pixel of the first light modulation element corresponding to a magnification of the image forming system.

4. The image display device according to claim 1 ,

the first light modulation element including a plurality of light modulation elements, each modulating a different color light;

the image display device further including a dichroic prism that combines lights modulated in the plurality light modulation elements; and

a shape of the opening in the unit pixel of the second light modulation element being matched with a shape of the opening in the unit pixel of the light modulation elements from which a light that passes through the dichroic prism exits.

5. A projector, comprising:

an image display device that displays an image by modulating a light from a light source according to display image data that includes:

a first light modulation element that modulates the light emitted from the light source;

a second light modulation element that is disposed on an optical path in series with the first light modulation element and that modulates a light exiting from the first light modulation element;

an opening in a unit pixel of the first light modulation element and an opening in a unit pixel of the second light modulation element being of analogous shapes; and

a projection system that projects light exiting from image display device; and

the first light modulation element and the second light modulation element being disposed to be rotationally symmetric by 180° about an optical axis.

6. The projector according to claim 5 , further comprising:

an image forming system that forms an optical image of the first light modulation element on a light-receiving surface of the second light modulation element.

7. The projector according to claim 6 , the image forming system being an inverted image forming portion;

a size of the opening in the unit pixel of the second light modulation element with respect to a size of the opening in the unit pixel of the first light modulation element corresponding to a magnification of the image forming system.

8. The projector according to claim 5 ,

the first light modulation element including a plurality of light modulation elements, each modulating a different color light;

the image display device further including a dichroic prism that combines lights modulated in the plurality light modulation elements; and

a shape of the opening in the unit pixel of the second light modulation element being matched with a shape of the opening in the unit pixel of the light modulation elements from which a light that passes through the dichroic prism exits.