Full Resolution, Low Crosstalk, and Wide Viewing Angle Auto-Stereoscopic Display With a Hybrid Spatial-Temporal Control Using Free-Form Surface Backlight Unit

Fan, Heng; Zhou, Yangui; Wang, Jiahui; Liang, Haowen; Krebs, Peter; Su, Jianbang; Lin, Daikun; Li, Kunyang; Zhou, Jianying

doi:10.1109/jdt.2015.2425432

Cited by 59 publications

(25 citation statements)

References 31 publications

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“…For light intensity measuring, the proposed method can be also applied within the measurement range, including at oblique viewing angle. However, the measurement is hardly necessary beyond the sweet area which is less than about ±23 degrees, as reported earlier …”

Section: Resultsmentioning

confidence: 59%

“…However, the measurement is hardly necessary beyond the sweet area which is less than about ±23 degrees, as reported earlier. 21 The crosstalk measurement and characterization method are applied to a polarizer-based glass-assisted 3D display system. For the 23-inch polarized-glass assisted 3D display, the detector with the specific polarizer filter was placed at 90 cm from the screen.…”

Section: Cu≤7% à Acmentioning

confidence: 99%

“…The crosstalk is defined as:

italicCrosstalk = \frac{L_{leakage} - L_{background}}{L_{signal} - L_{background}} \times 100 %

where L leakage is the light intensity leaked from unintended channels, and L signal is the light intensity presented in the intended channel and L background is the measured background intensity when all the display pixels are turned off. In former cases, photo‐diode, CCD, digital camera, spectroradiometer, photometer and Eldim EZContrastMS were used to measure the luminance on the screen in the position of the viewing zones. However, spectral responses of the most measurement devices, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative measurement of global crosstalk for 3D display

et al. 2016

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A photo‐detecting system based on photo‐detector with calibrated optical response is developed to characterize the global crosstalk of three‐dimensional (3D) displays over the entire display screen. Local screens areas are investigated, revealing that the crosstalk can be very inhomogeneous over the entire screens for typical stereoscopic display and autostereoscopic display. New quantification parameters for crosstalk, including average crosstalk and crosstalk uniformity, are introduced to give a panorama view of the display system. The crosstalk measurement and characterization method not only show good agreement with the practical visual experience, but also give a global quantitative description of crosstalk.

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Section: Resultsmentioning

confidence: 59%

Section: Cu≤7% à Acmentioning

confidence: 99%

“…The crosstalk is defined as:

italicCrosstalk = \frac{L_{leakage} - L_{background}}{L_{signal} - L_{background}} \times 100 %

Section: Introductionmentioning

confidence: 99%

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Quantitative measurement of global crosstalk for 3D display

et al. 2016

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“…Considering that the minimum achievable crosstalk of directional backlight technology can be as small as 2.41%, [9] for the sake of simplicity, only the brightness fluctuation of the imaging light is considered. Therefore, flicker of the directional backlight autostereoscopic displays can be quantized by…”

Section: Measurement and Characterization Methodsmentioning

confidence: 99%

2.3: Evaluation and Reduction of Flicker with an AI Scheme in Autostereoscopic Displays

Chen

Zhang

Liang³

et al. 2019

Symp Digest of Tech Papers

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Flicker is one of the most prominent issues in directional backlight autostereoscopic displays. This work studies the flicker characterization over the entire screen with a high‐speed camera. The characterization method shows that it works well to adapt with the practical visual experience and it gives a global quantitative description of the flicker. An artificial intelligent scheme with motion prediction is established to reduce the flicker, which is proved to be effective.

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“…Therefore, all PLSs should be arranged in such a way to achieve that objective. Here we propose an adaptive optimization solution to design the backlight unit based on the RMS value of a spot [24].…”

Section: Design Methods For Backlight Modulementioning

confidence: 99%

Illumination Optics in Emerging Naked-Eye 3d Display (Invited Review)

Zhang¹,

Wang²,

Zhou³

et al. 2017

PIER

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Abstract-Illumination optics in emerging naked-eye 3D display, especially in time-spatial multiplexing, or directional backlight naked-eye 3D display system, is systematically examined. Key issues in directional backlight system include: 1) Directional transmission of the left-and right-eye images to the corresponding viewing zone with small crosstalk; 2) The luminance on the screen should be homogeneous even for the viewers moving around. In this paper, we propose an adaptive optimization solution based on root mean square (RMS) for the design of illumination optics of the naked-eye 3D system. Based on the designed free-form backlight illumination, the overall design schemes for both single-user and multi-user naked-eye 3D display are proposed and demonstrated. By utilizing the novel dynamic synchronized backlight technique, the temporal crosstalk is effectively brought into control. The display defects such as the dark bands appearing at the joints of the lens array or at the middle of the Fresnel lens are simulated numerically and tested experimentally, hence providing effective design guidelines for the optical components as well as their fabrication error tolerance. Additionally, we propose a continuous backlight technique to improve the luminance homogeneity. Furthermore, a quantitative evaluation mechanism for the moiré pattern based on the Fourier analysis method, by introducing the contrast sensitivity function (CSF), is presented. A novel arrangement of a quasirandom RGB sub-pixel array is proposed to reduce the visibility of moiré pattern. As a result, full HD glassless 3D display suitable for glassless virtual and augmented realities is demonstrated with an unprecedented display quality.

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Full Resolution, Low Crosstalk, and Wide Viewing Angle Auto-Stereoscopic Display With a Hybrid Spatial-Temporal Control Using Free-Form Surface Backlight Unit

Cited by 59 publications

References 31 publications

Quantitative measurement of global crosstalk for 3D display

Quantitative measurement of global crosstalk for 3D display

2.3: Evaluation and Reduction of Flicker with an AI Scheme in Autostereoscopic Displays

Illumination Optics in Emerging Naked-Eye 3d Display (Invited Review)

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