35.5L: <i>Late‐News Paper</i>: A Direct‐View MEMS Display for Mobile Applications

Hagood, Nesbitt W.; Barton, Roger; Brosnihan, Tim; Fijol, J.J.; Gandhi, Jignesh; Halfman, Mark; Payne, Richard; Steyn, Jacques

doi:10.1889/1.2785545

Cited by 20 publications

(18 citation statements)

References 6 publications

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“…It is built with a unique and simple 3-mask process which is best described as surface micro-machining compatible with large glass fabrication [12][13][14]. Thin-Films over photoresist is the key enabling concept, as described in [5,7,15]. The digital nature of the shutter allows the high contrast shutter to be fabricated within the limits of the lithography tolerances of large Flat-Panel Glass Fabrication facilities.…”

Section: Resultsmentioning

confidence: 99%

“…Pixtronix has developed a new MEMS-based display technology which has a highly advantageous digital architecture. The advantages of the general optical design and resultant FOS properties have previously been discussed at previous SID meetings (amongst other forums) [2][3][4][5][6]. They include low-power operation which derives from a 10× optical throughput efficiency over LCD, wide color gamut from the filter-free use of RGB LED's, [6][7] color-purity over a wide view angle due to absence of birefringent materials [11], and transflective feature inherent in the shutter architecture and its highly efficient recycling Back Light Unit (BLU).…”

Section: Objective and Backgroundmentioning

confidence: 95%

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62.1: Invited Paper: The Joys of Being Digital for Low‐Power, Mobile, Multi‐Media Devices

Payne

2013

Symp Digest of Tech Papers

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Section: Resultsmentioning

confidence: 99%

Section: Objective and Backgroundmentioning

confidence: 95%

62.1: Invited Paper: The Joys of Being Digital for Low‐Power, Mobile, Multi‐Media Devices

Payne

2013

Symp Digest of Tech Papers

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“…It is expected that transparency could be improved with more light efficient SLM technologies, e.g. MEMS microshutters [Hagood et al 2007]. …”

Section: Improving Resolutionmentioning

confidence: 99%

Pinlight displays

et al. 2014

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Figure 1: A) A sparse array of point light sources, called pinlights, fill the eye's image plane when held defocused near the eye. B) Prototype optical see-through display consisting of pinlight arrays and spatial light modulators (LCDs). The spatial light modulators code the defocused pinlights to form an image on the retina. C) A photograph taken through our prototype display using a camera that approximates the human eye. D) A comparison of the field of view of our prototype display (110 • ) to state-of-the art commercial optical see-through glasses. Ship model by Staffan Norling. AbstractWe present a novel design for an optical see-through augmented reality display that offers a wide field of view and supports a compact form factor approaching ordinary eyeglasses. Instead of conventional optics, our design uses only two simple hardware components: an LCD panel and an array of point light sources (implemented as an edge-lit, etched acrylic sheet) placed directly in front of the eye, out of focus. We code the point light sources through the LCD to form miniature see-through projectors. A virtual aperture encoded on the LCD allows the projectors to be tiled, creating an arbitrarily wide field of view. Software rearranges the target augmented image into tiled sub-images sent to the display, which appear as the correct image when observed out of the viewer's accommodation range. We evaluate the design space of tiled point light projectors with an emphasis on increasing spatial resolution through the use of eye tracking. We demonstrate feasibility through software simulations and a real-time prototype display that offers a 110 • diagonal field of view in the form factor of large glasses and discuss remaining challenges to constructing a practical display.

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“…As with other multilayer displays, stacking multiple display elements increases moiré and color-channel crosstalk, decreases the overall display brightness, and presents an alignment challenge. 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%

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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35.5L: Late‐News Paper: A Direct‐View MEMS Display for Mobile Applications

Cited by 20 publications

References 6 publications

62.1: Invited Paper: The Joys of Being Digital for Low‐Power, Mobile, Multi‐Media Devices

62.1: Invited Paper: The Joys of Being Digital for Low‐Power, Mobile, Multi‐Media Devices

Pinlight displays

Focus 3D

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