Spoke recovery in a color display using a most significant bit and a second-most significant bit

1. A multi-primary display device comprising:

a color wheel including a color filter; and

a controller configured to receive input pixel data, said input pixel data comprising a plurality of input sub-pixel data components representing respective sub-pixel colors, said plurality of sub-pixel data components including a first input sub-pixel data component and a second input sub-pixel data component,

said controller being further configured to determine a value of a most significant bit of said first input sub-pixel data component and a value of a second-most significant bit of said first input sub-pixel data component,

said controller being further configured to identify, according to said value of said most significant bit of said first input sub-pixel data component and said value of said second-most significant bit of said first input sub-pixel data component, said second input sub-pixel data component as a sub-pixel data component to be adjusted,

said controller being further configured to modify said input pixel data by adjusting at least a value of said second input sub-pixel data component in said input pixel data to produce modified pixel data,

said controller being further configured to control a spatial light modulator based on said modified pixel data.

2. The device of claim 1 , comprising a color switching mechanism to sequentially provide colored light of a plurality of colors corresponding to colors of said sub-pixel data components.

3. The device of claim 2 , wherein a color represented by said second input sub-pixel data component is adjacent to a color represented by said first input sub-pixel data component.

4. The device of claim 3 , wherein a color of said second input sub-pixel data component is sequentially adjacent to a color of said first input sub-pixel data component on said color switching mechanism.

5. The device of claim 4 , wherein said color switching mechanism comprises a plurality of filters corresponding to said sub-pixel component colors.

6. A method of producing a color image display comprising:

receiving at a processor input pixel data, said input pixel data comprising a plurality of input sub-pixel data components representing respective sub-pixel colors, said plurality of sub-pixel data components including a first input sub-pixel data component and a second input sub-pixel data component;

determining a value of a most significant bit of said first input sub-pixel data component and a value of a second-most significant bit of said first input sub-pixel data component;

according to said value of said most significant bit of said first input sub-pixel data component and said value of said second-most significant bit of said first input sub-pixel data component, identifying said second input sub-pixel data component as a sub-pixel data component to be adjusted;

adjusting at least a value of said second input sub-pixel data component to produce modified pixel data;

controlling a spatial light modulator based on said plurality of modified pixel data, thereby producing a color image based on said modified pixel data,

wherein the color image is displayed through a color wheel that includes the color filter.

7. The method of claim 6 , further comprising sequentially providing colored light of a plurality of colors corresponding to colors of said sub-pixel data components.

8. The method of claim 7 , wherein a color represented by said second input sub-pixel data component is adjacent to a color represented by said first input sub-pixel data component.

9. The method of claim 8 , wherein a color of said second input sub-pixel data component is sequentially adjacent to a color of said first input sub-pixel data component on a color switching mechanism.

10. The method of claim 9 , wherein said color switching mechanism comprises a plurality of filters corresponding to said sub-pixel component colors.

11. A multi-primary display device comprising:

a light source to sequentially illuminate at least first, second, third and fourth primary color filters of a color switching mechanism;

a color wheel including a color filter;

a controller to receive input pixel data, said input pixel data comprising a plurality of input sub-pixel data components representing respective sub-pixel colors, said plurality of sub-pixel data components including a first input sub-pixel data component and a second input sub-pixel data component,

said controller being further configured to determine a value of a most significant bit of said first input sub-pixel data component and a value of a second-most significant bit of said first input sub-pixel data component,

said controller being further configured to identify, according to said value of said most significant bit of said first input sub-pixel data component and said value of said second-most significant bit of said first input sub-pixel data component, said second input sub-pixel data component as a sub-pixel data component to be adjusted,

said controller being further configured to modify said input pixel data by adjusting at least a value of said second input sub-pixel data component to produce modified pixel data; and

a spatial light modulator to modulate light in accordance with said plurality of modified pixel data.

12. The device of claim 1 , wherein the color wheel includes a plurality of non-white color filters, at least three of the non-white color filters having different sizes.

13. The device of claim 12 , wherein the different sizes include four different sizes.

14. The method of claim 6 , wherein the color wheel includes a plurality of non-white color filters, at least three of the non-white color filters having different sizes.

15. The method of claim 14 , wherein the different sizes include four different sizes.

16. The method of claim 11 , wherein the color wheel includes a plurality of non-white color filters, at least three of the non-white color filters having different sizes.

17. The device of claim 16 , wherein the different sizes include four different sizes.

18. The device of claim 1 , wherein said controller is configured to modify said input pixel data during a first spoke period, wherein said first spoke period corresponds to a first end of said color filter, and wherein a second spoke period corresponds to a second end of said color filter.

19. The device of claim 6 , wherein said adjusting is performed during a first spoke period, wherein said first spoke period corresponds to a first end of a color filter, and wherein a second spoke period corresponds to a second end of said color filter.

20. The method of claim 11 , wherein said controller is configured to modify said input pixel data during a first spoke period, wherein said first spoke period corresponds to a first end of said color filter, and wherein a second spoke period corresponds to a second end of said color filter.