Light field display for rendering perception-adjusted content, and dynamic light field shaping system and layer therefor
US-2024305768-A1 · Sep 12, 2024 · US
Autostereoscopic display with a passive cycloidal diffractive waveplate
US9237337B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9237337-B2 |
| Application number | US-201213593625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2012 |
| Priority date | Aug 24, 2011 |
| Publication date | Jan 12, 2016 |
| Grant date | Jan 12, 2016 |
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Abstract
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A new beam deflection approach is provided for displaying images in autostereoscopic format. Conceptually, polarized light from a display is directed into specific viewing regions using a polarization-sensitive beam deflection sub-system that comprises, in exemplary embodiments, an active liquid crystal quarter-wave plate modulator and a passive cycloidal grating element, such as a diffractive waveplate. Specific embodiments may comprise an illumination system that both floods an LCD panel and creates a defined eye pupil region, from within which the display is viewable. Deflecting the pupil region between left and right eye positions in synchronization with displayed frame sequential stereo image data creates desirable autostereoscopic 3D viewing. Other embodiments employ a similar beam deflection sub-system in conjunction with a means of viewing subsets of pixels from different viewing positions, such as a parallax barrier or lenslet array, allowing freedom of head movement while maintaining stereo viewing.
First claim
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What is claimed is: 1. An autostereoscopic display, comprising: a display panel providing stereoscopic imagery; a polarization modulator configured to modify polarization of light received from the display panel, wherein the polarization modulator is configured to impart right-handed or left-handed circular polarization on light received from the display panel; and a polarization-sensitive beam deflector configured to direct light received from the polarization modulator based…
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Electricity · mapped topic
- H04N13/305Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
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- What does patent US9237337B2 cover?
- A new beam deflection approach is provided for displaying images in autostereoscopic format. Conceptually, polarized light from a display is directed into specific viewing regions using a polarization-sensitive beam deflection sub-system that comprises, in exemplary embodiments, an active liquid crystal quarter-wave plate modulator and a passive cycloidal grating element, such as a diffractive …
- Who is the assignee on this patent?
- Ramsey Robert A, Robinson Michael G, Reald Inc
- What technology area does this patent fall under?
- Primary CPC classification H04N13/305. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 12 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).