Wedge Optics in Flat Panel Displays

Travis, Adrian; Large, Tim; Emerton, Neil; Bathiche, Steven

doi:10.1109/jproc.2011.2176689

Cited by 21 publications

(12 citation statements)

References 28 publications

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“…The incorporation of tracking, a brighter backlight, and a higher quality lens would improve the practicality of our display and allow evaluation on human subjects. Investigation of optical folding techniques, such as Wedge optics [Travis et al 2013] may also allow the form factor of our current prototype to be significantly reduced -resulting in a thin, light-efficient glassesfree 3D display that overcomes many of the limitations of currentgeneration devices. Optimization criteria can also be adjusted to compensate for diffraction through the display layers, as well as optical aberrations in the human eye [Huang et al 2012].…”

Section: Discussionmentioning

confidence: 99%

“…Obtaining good performance in the proposed multilayer framework also requires display panels which exceed currently available refresh rates, although upcoming display technologies have been demonstrated with much higher rates [Hagood et al 2007]. While our current prototype is about 50 cm thick, future generations of the proposed display may benefit from optical folding techniques such as wedge optics [Travis et al 2013].…”

Section: Overview Of Benefits and Limitationsmentioning

confidence: 99%

“…Travis [1990] proposed mounting a Fresnel lens behind a transparent, light-modulating front panel with an additional highresolution backlight placed at a distance behind the lens. Subsequently, this backlight was improved by engineering a wedgeshaped light guide that allows for the same functionality to be integrated into a thin, transparent optical element [Travis et al 2013]. These displays are driven in a time-sequential mode: display optics illuminate a single view direction at each time step while the corresponding view is displayed.…”

Section: Related Work Light Field Displaysmentioning

confidence: 99%

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Focus 3D

et al. 2013

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We present a glasses-free 3D display design with the potential to provide viewers with nearly correct accommodative depth cues, as well as motion parallax and binocular cues. Building on multilayer attenuator and directional backlight architectures, the proposed design achieves the high angular resolution needed for accommodation by placing spatial light modulators about a large lens: one conjugate to the viewer's eye, and one or more near the plane of the lens. Nonnegative tensor factorization is used to compress a high angular resolution light field into a set of masks that can be displayed on a pair of commodity LCD panels. By constraining the tensor factorization to preserve only those light rays seen by the viewer, we effectively steer narrow high resolution viewing cones into the user's eyes, allowing binocular disparity, motion parallax, and the potential for nearly correct accommodation over a wide field of view. We verify the design experimentally by focusing a camera at different depths about a prototype display, establish formal upper bounds on the design's accommodation range and diffraction-limited performance, and discuss practical limitations that must be overcome to allow the device to be used with human observers.

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Section: Discussionmentioning

confidence: 99%

Section: Overview Of Benefits and Limitationsmentioning

confidence: 99%

Section: Related Work Light Field Displaysmentioning

confidence: 99%

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Focus 3D

et al. 2013

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“…5 Good surveys exist, 6-8 and advanced hardware technologies continue to be invented. [9][10][11] Our work focuses on using software to ameliorate some of the deficiencies common to many of the most common hardware platforms.…”

Section: Related Workmentioning

confidence: 99%

Dynamic mapping for multiview autostereoscopic displays

et al. 2015

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Multiview autostereoscopic displays have several image artifacts which prevent widespread adoption. Crosstalk between adjacent views is often severe, stereo inversion occurs at some head positions, and legacy 2-view content is difficult to display correctly. We introduce a method for driving multiview displays, dynamically assigning views to hardware display zones, based on potentially multiple observer's current head positions. Rather than using a static one-to-one mapping of views to zones, the mapping is updated in real time, with some views replicated on multiple zones, and some zones left blank. Quantitative and visual evaluation demonstrates that this method substantially reduces crosstalk.

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“…The bundle of rays which is reflected at the bottom side of the waveguide should follow the path for which the width is twice the thickness of the wedge structure according to the stack-up method, which traces the path of the ray propagation in the waveguide by stacking up the same structure with total number of layers equal to the number of reflections as shown in Fig. 2 [10].…”

Section: Principle Of Wedge Systemmentioning

confidence: 99%

Design of Wedge Projection System with Thin Slab Structure

Lee

Choi

Yang

et al. 2014

Journal of the Optical Society of Korea

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Enhanced analysis is performed to design a wedge projection system with a slab structure that increases the projected image size. The specification values of the system such as the length of the slab structure and the imaging region are calculated and investigated using an optical simulation tool. We also propose a split imaging region method to represent a large tiled scene using the thin wedge waveguide structure. Experiments are performed to verify the feasibility of the proposed method.

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Wedge Optics in Flat Panel Displays

Cited by 21 publications

References 28 publications

Focus 3D

Focus 3D

Dynamic mapping for multiview autostereoscopic displays

Design of Wedge Projection System with Thin Slab Structure

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