A projector includes a DMD that forms an image, a projection lens that projects the image formed by the DMD on a projected surface, and a display control unit that controls an image forming operation of the DMD. The display control unit forms a frame image by sequentially forming a plurality of imag
A projector includes a DMD that forms an image, a projection lens that projects the image formed by the DMD on a projected surface, and a display control unit that controls an image forming operation of the DMD. The display control unit forms a frame image by sequentially forming a plurality of images using a combined pixel which is configured of a plurality of pixels, and with respect to temporally continuous two images, the display control unit forms one image at a position that is shifted by a distance that corresponds to the pixel pitch of the DMD in a predetermined direction relative to the other image.
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1. A projector comprising: a light source;an image forming unit that includes a pixel area which is configured of a plurality of pixels, the plurality of pixels modulating light that is emitted from the light source based on an input video signal to form an image;a projection lens that projects the
1. A projector comprising: a light source;an image forming unit that includes a pixel area which is configured of a plurality of pixels, the plurality of pixels modulating light that is emitted from the light source based on an input video signal to form an image;a projection lens that projects the image that is formed by the image forming unit; anda control unit that controls an image forming operation of the image forming unit,wherein the control unit forms a frame image by sequentially forming a plurality of images in which a combined pixel which is configured of a plurality of pixels is used as a pixel unit,wherein, with respect to temporally continuous two images from among the plurality of images, the control unit forms one image at a position that is shifted by a distance that corresponds to a pixel pitch of the pixel area in a predetermined direction relative to the other image, andwherein the projection lens has a Modulation Transfer Function (MTF) value, the MTF value being less than a predetermined value relative to a spatial frequency that is determined by a size of the pixel of the pixel area and being equal to or greater than the predetermined value relative to spatial frequency that is determined by a size of the combined pixel. 2. The projector according to claim 1, wherein the combined pixel is four pixels arranged in two rows and two columns, and the predetermined direction is a row direction and a column direction. 3. The projector according to claim 1, wherein the predetermined value is 50%. 4. The projector according to claim 1, wherein a part of the pixel area includes a black display area for displaying black. 5. The projector according to claim 4, wherein the control unit forms the frame image in the area other than the black display area in the pixel area. 6. The projector according to claim 1, wherein: the input video signal comprises a signal that represents an image having the same pixel count as the pixel area;the control unit generates, from the input video signal, a plurality of image signals that represent the plurality of images, respectively; andthe image forming unit forms the plurality of images in a time-divisional manner based on the plurality of image signals. 7. An image displaying method implemented in a projector that includes a display panel, that forms an image by modulating light emitted from a light source based on an input video signal, and that projects an image that is formed by the display panel to a projected surface, the image displaying method comprising: displaying a frame image by sequentially forming, by the display panel, a plurality of images in which a combined pixel which is configured of a plurality of pixels is used as a pixel unit; andwith respect to temporally continuous two images from among the plurality of images, forming one image at a position that is shifted by a distance that corresponds to a pixel pitch of the display panel in a predetermined direction relative to the other image,the method further comprising using a projection lens having a Modulation Transfer Function (MTF) value to project the image that is formed by the display panel, the MTF value being less than a predetermined value relative to spatial frequency that is determined by a size of the pixel of the display panel and being equal to or greater than the predetermined value relative to a spatial frequency that is determined by a size of the combined pixel. 8. The image displaying method according to claim 7, wherein the combined pixel is four pixels that are arranged in two rows and two columns, and the predetermined direction is a row direction and a column direction. 9. The image displaying method according to claim 7, wherein the predetermined value is 50%. 10. The image displaying method according to claim 7, wherein the display panel has a pixel area, a part of the pixel area being formed by a black display area for displaying black, and the frame image is formed in the entire pixel area. 11. The image displaying method according to claim 7, wherein the display panel has a pixel area, a part of the pixel area being formed by a black display area for displaying black, and the frame image is formed in an area other than the black display area in the pixel area. 12. The image displaying method according to claim 7, wherein the input video signal comprises a signal that represents an image having the same pixel count as the pixel area, the image displaying method further comprising: generating, from the input video signal, a plurality of image signals that represent the plurality of images, respectively; andcausing the display panel to form the plurality of images in a time-divisional manner based on the plurality of image signals.
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이 특허에 인용된 특허 (5)
Pate,Michael A.; Allen,Will; Williams,David; Cole,Jim, Display device including a spatial light modulator with plural image regions.
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