PROJECTION DISPLAY

1 . A projector comprising:

an array of display elements, each display element comprising a first layer which is at least partially reflective and a second layer which is at least partially reflective and spaced a variable distance from the first layer;

a controller configured to change the variable distances of the display elements based on image data representing an image;

a light source configured to illuminate the array of display elements; and

at least one lens configured to refract light reflected by or transmitted through the array so as project the image.

2 . The projector of claim 1 , wherein each display element is configured to reflect at least a first wavelength of light at a first variable distance and to not reflect the first wavelength of light at a second variable distance different from the first variable distance.

3 . The projector of claim 1 , wherein each display element is configured to transmit at least a first wavelength of light at a first variable distance and to not transmit the first wavelength of light at a second variable distance different from the first variable distance.

4 . The projector of claim 1 , wherein the at least one lens is configured to refract light reflected by the array so as to project the image.

5 . The projector of claim 1 , wherein the at least one lens is configured to refract light transmitted through the array so as to project the image.

6 . The projector of claim 1 , further comprising a housing which houses the array, controller, light source, and lens.

7 . The projector of claim 6 , further comprising a screen housed by the housing, and wherein the lens is configured to project the image onto the screen.

8 . The projector of claim 6 , wherein the lens is configured to project the image onto a screen which is not housed by the housing.

9 . The projector of claim 1 , further comprising a memory storing the image data.

10 . The projector of claim 1 , further comprising an input port receiving image data from an external source.

11 . The projector of claim 1 , further comprising a focus controller configured to change a focus of the at least one lens.

12 . A method of projection, the method comprising:

illuminating an array of display elements, each display element comprising a first layer which is at least partially reflective and a second layer which is at least partially reflective and spaced a variable distance from the first layer;

changing the variable distances of the display elements based on image data representing an image; and

refracting light reflected by or transmitted through the array so as project the image.

13 . The method of claim 12 , wherein refracting light comprises refracting light reflected by the array so as to project the image.

14 . The method of claim 12 , wherein refracting light comprises refracting light transmitted through the array so as to project the image.

15 . An apparatus comprising:

means for illuminating an array of display elements, each display element comprising a first layer which is at least partially reflective and a second layer which is at least partially reflective and spaced a variable distance from the first layer;

means for changing the variable distances of the display elements based on image data representing an image; and

means for refracting light reflected by or transmitted through the array so as project the image.

16 . The apparatus of claim 15 , wherein the means for illuminating comprises at least one of a light source or light source optics, wherein the means for changing comprises at least one of a processor, controller, or driving circuit, or wherein the means for refracting comprises at least one of a lens or projection optics.