STEREOSCOPIC-IMAGE DISPLAY APPARATUS
First Claim
1. A stereoscopic-image display apparatus comprising:
- an elemental-image display unit that includes pixel plane on which pixels are arranged in matrix;
a polarization switching cell that is arranged opposite to the elemental-image display unit, and that switches polarization direction thereof corresponding to applied voltage;
a lens array lamination layer that includes refractive-index anisotropic mediums and substrates with two lens arrays whose principal planes are different from each other, the refractive-index anisotropic mediums making lens effect of either one of the lens arrays effective corresponding to the polarization direction switched by the polarization switching cell;
a synchronization drive unit that controls voltage to be applied to the polarization switching cell synchronizing with a display timing of images displayed on the elemental-image display unit, and that switches the lens array to be effective at each display timing; and
a display control unit that controls the elemental-image display unit to alternately display the images on near or far sides by time division multiplexing, synchronizing with the display timing, whereinfocal planes of the two lens arrays are positioned at different positions from each other near the pixel plane.
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Accused Products
Abstract
Mediums that are arranged opposite to an elemental-image display unit, that form two lens arrays having different principal planes together with substrates, and that switches a polarization direction of incident light corresponding to applied voltage, thereby making lens effect of either one of the lens arrays effective are included. By controlling the polarization direction synchronizing with a display timing of images to be displayed on the elemental-image display unit, the lens array to be effective is switched at each display timing, and images having different near or far direction are alternately displayed on the elemental-image display unit.
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Citations
8 Claims
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1. A stereoscopic-image display apparatus comprising:
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an elemental-image display unit that includes pixel plane on which pixels are arranged in matrix; a polarization switching cell that is arranged opposite to the elemental-image display unit, and that switches polarization direction thereof corresponding to applied voltage; a lens array lamination layer that includes refractive-index anisotropic mediums and substrates with two lens arrays whose principal planes are different from each other, the refractive-index anisotropic mediums making lens effect of either one of the lens arrays effective corresponding to the polarization direction switched by the polarization switching cell; a synchronization drive unit that controls voltage to be applied to the polarization switching cell synchronizing with a display timing of images displayed on the elemental-image display unit, and that switches the lens array to be effective at each display timing; and a display control unit that controls the elemental-image display unit to alternately display the images on near or far sides by time division multiplexing, synchronizing with the display timing, wherein focal planes of the two lens arrays are positioned at different positions from each other near the pixel plane. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A stereoscopic-image display apparatus comprising:
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an elemental-image display unit that includes pixel plane on which pixels are arranged in matrix; a first medium formed in two layers that is arranged opposite to the elemental-image display unit, the layers includes substrates with two lens arrays whose principal planes are different from each other, and the layers switches refractive index thereof corresponding to applied voltage; a second medium having isotropy that is arranged between layers of the first medium; a synchronization drive unit that controls voltage to be applied to the first medium synchronizing with a display timing of images displayed on the elemental-image display unit, and that switches the lens array to be effective at each display timing; and a display control unit that controls the elemental-image display unit to alternately display the images on near or far sides by time division multiplexing, synchronizing with the display timing, wherein focal planes of each layer of the first medium are positioned at different positions from each other near the pixel plane.
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Specification