Stereoscopic-image display apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsTatsuo Saishu, Masako Kashiwagi, Ayako Takagi, Kazuki Taira
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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.
Claims8
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, wherein
- focal planes of the two lens arrays are positioned at different positions from each other near the pixel plane.
A stereoscopic-image display apparatus comprising:
- 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.
Dependencies are inferred from the claim text.