LIGHT-RESTRICTED PROJECTION UNITS AND THREE-DIMENSIONAL DISPLAY SYSTEMS USING THE SAME

摘要

The invention features a multi-view display system based on planar- or circular-aligned light-restricted projection units. A light-restricted projection unit is constituted by a display panel, a directional imaging structure transmitting optical messages from the display panel along a specific direction, and baffles encasing the display panel/directional imaging structure pair for light blocking. During operation, all the light-restricted projection units project images to a common display zone. Each light-restricted projection unit generates two kinds of zones: VZ where light rays from all pixels of the display panel pass and PVZ where light rays from partial pixels of the display panel pass. With the light-restricted projection units being aligned closely, PVZs from different light-restricted projection units completely or partially overlap into a fusing zone (FZ). For each point in the FZ, light rays from pixels belonging to segments of different display panels pass. The spatial percents of different segments occupying their display panels change with the point location, resulting in changing views presented to the pupil moving from one VZ (or image area of one VZ) to its adjacent VZ (or image area of the adjacent VZ). With the help of these keeping-changed views, continuous motion parallax gets implemented. Furthermore, through introducing sequentially gated gating-apertures, perspective views corresponding to more viewpoints can be presented by the display system based on persistence of vision for better three-dimensional effects.

主权项

1. A system comprising:
light-restricted projection units, each unit being constituted by a display panel displaying optical images, a directional imaging structure transmitting optical messages from the display panel along a specific direction, and baffles encasing the display panel/directional imaging structure pair for light blocking; and an optional Accessorial Lens; wherein each pixel of the display panel has a diverging angle which is large enough to cover the corresponding directional imaging structure; during operation, display panels are imaged to a common display zone through the corresponding directional imaging structures or the combination of the corresponding directional imaging structures and the Accessorial Lens; with baffles blocking partial light rays emitting from the display panels, for each light-restricted projection unit, two types of zones are generated subsequently: 1) VZ where the light rays from all the pixels of the display panel pass and 2) PVZ where only light rays from partial pixels of the display panel pass; light-restricted projection units are aligned in planar or curved ways, the PVZs from different light-restricted projection units overlap completely or partially into a fusing zone (FZ); for each point in the FZ, light rays from pixels belonging to segments of different display panels pass.