3-D Display Requiring No Special Eyewear
First Claim
Patent Images
1. An autostereoscopic display apparatus comprising:
- an image display for providing a display output comprising a plurality of pixels grouped in a row and column array;
a micro-lens array disposed adjacent the image display, having a plurality of elements directing outputs from respective pixel groups into different respective viewing areas so as to enable a stereoscopic image to be perceived; and
wherein at least two elements in the micro-lens array have a differing fixed optical property as a function of a distance from an object plane including a pixel group dividing line to a center point of the corresponding element of the micro-lens array along the optical axis, and an image-plane distance from the corresponding element.
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Abstract
A display system enables viewing a stereo pair of images without any special eyewear. In one embodiment an array of micro-lens elements are mounted in front of a pixel-based image display. Lens elements in the micro-lens array can have differing fixed optical properties and in one embodiment the micro-lens array can have differing focal lengths to provide flexibility as to the location of a viewer, reduced optical distortion, and more comfortable viewing due to balanced horizontal and vertical resolution.
58 Citations
28 Claims
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1. An autostereoscopic display apparatus comprising:
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an image display for providing a display output comprising a plurality of pixels grouped in a row and column array; a micro-lens array disposed adjacent the image display, having a plurality of elements directing outputs from respective pixel groups into different respective viewing areas so as to enable a stereoscopic image to be perceived; and wherein at least two elements in the micro-lens array have a differing fixed optical property as a function of a distance from an object plane including a pixel group dividing line to a center point of the corresponding element of the micro-lens array along the optical axis, and an image-plane distance from the corresponding element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 21, 22, 25, 26, 27, 28)
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13. A 3-D display comprising:
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an array of pixel pairs, each pixel pair including at least one first pixel and at least one second pixel; an array of lenses disposed in front of the array of pixel pairs, each lens in the array of lenses in optical alignment with a respective pixel pair and configured with a focal pattern such that a first image of a first pixel of one of the pixel pairs is projected into a first viewing area and a second image of a second pixel of the same one of the pixel pairs is projected into a second viewing area; the first viewing area being a first location for viewing by a respective one of a viewer'"'"'s left and right eye and the second viewing area being a second location for viewing by the viewer'"'"'s other eye.
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14. The 3-D display of 13 wherein the array of pixel pairs and corresponding lenses are provided in a staggered arrangement.
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15. The 3-D display of 13 wherein signals sent to each first pixel of each pixel pair collectively combine to form an image viewed by a right eye of the viewer, and signals sent to each second pixel of each pixel pair collectively form an image viewed by a left eye of the viewer.
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16. A method for presenting a three dimensional (3-D) display comprising:
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providing a micro-lens array having a plurality of elements directing the outputs from respective pixel groups into different respective viewing areas and wherein at least two elements in the micro-lens array have a differing fixed optical property as a function of the distance of an object plane including a pixel group dividing line center from a corresponding element of the micro-lens array, and an image-plane distance from the optical center of the corresponding element; and providing an stereoscopic image disposed proximate to the micro-lens array, wherein the image provides a first eye perspective view and a second eye perspective view. - View Dependent Claims (17, 18, 19, 20, 23, 24)
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Specification