Design of a bidirectional backlight using a pair of stacked light guide plates for large dual-view and 3D displays

Teng, Tun Chien; Tseng, Li Wei

doi:10.1364/ao.54.000509

Cited by 10 publications

(4 citation statements)

References 14 publications

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“…Different glassesfree 3D display technologies have been developed through refraction, occlusion, and diffraction. The main-stream technology includes light field display [5], [6], [7] multiprojector display [8], [9], lenticular-or barrier-based autostereoscopic display [10], [11], [12] and directionally illuminated autostereoscopy (DIA) [13], [14], [15]. While light field display appears to have an obvious advantage of avoiding visual accommodation conflict, the problem with required broad bandwidth and low display resolution needs to be tackled before a widespread application can be expected, on top of its specific content format for display.…”

Section: Introductionmentioning

confidence: 99%

Global Evaluation and Optimization for a Directionally Illuminated Autostereoscopy

Chen,

He,

Huang

et al. 2023

IEEE Photonics J.

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Evaluating the performance of an autostereoscopy is vital to the development of glasses-free three-dimensional display, hence a well-defined and complete characterization is highly necessary. For this purpose, a global and effective scenario is proposed and applied to a directionally illuminated autostereoscopy. The plenoptic function is adopted to characterize the uniformity perceived in various locations in the viewing zone. The crosstalk between binocular channels in different view positions over the entire screen is analyzed. The monocular effective viewing zone is defined by the uniformity and crosstalk while the binocular effective viewing zone is delineated by interpupillary distance. A complete visual modeling is developed that mimics the human vision process. Both simulation and experiment verify the feasibility of the evaluation method. Guided with the characterization, a freeform backlight system with a nonisometric staggered light emitting diode arrangement is optimally designed to generate a seamlessly continuous and uniform viewing zone at different viewing distances. For a nominal 850 mm viewing distance, high quality autostereoscopic display with a lateral viewing range of 560 mm and a longitudinal range of 559 mm is realized.

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Section: Introductionmentioning

confidence: 99%

Global Evaluation and Optimization for a Directionally Illuminated Autostereoscopy

Chen,

He,

Huang

et al. 2023

IEEE Photonics J.

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“…Autostereoscopic display based on directional backlight can deliver full-resolution images to each viewing zones sequentially, which significantly improves the 3D experience for observers. 3D prism film is widely used in the directional backlight-based autostereoscopic display [1][2][3]. Schultz et al [1] suggested a full-resolution autostereoscopic 3D display using a directional backlight with shallow prism structure, a 3D film with the top lenticular and bottom prismatic features, and an LCD panel.…”

Section: Introductionmentioning

confidence: 99%

6.1: Autostereoscopic Display with a Multidirectional Backlight System and an Eye tracker

Gao

et al. 2022

Symp Digest of Tech Papers

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We implement a time-sequential autostereoscopic display with a multidirectional backlight system and an eye tracker. The proposed multidirectional backlight uses Bragg mismatched reconstruction of volume-holographic optical elements. The eye tracker feeds back eye positions, and the system provides directional and timesequential parallax images. Through this display, viewers could observe vivid three-dimensional images with high resolution, low crosstalk, and smooth motion parallax.

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“…[1][2][3][4][5][6] At present, parallax three-dimensional (3D) display tends to be suitable for practical application as the technology is constantly improving and as autostereoscopy is compatible to existing 3D display contents. 7,8 The parallax 3D display uses the parallax barrier, [9][10][11][12][13] cylindrical lens grating, [14][15][16] or Fresnel lens 17,18 as the splitting elements, and a viewer is able to view the parallax images by blocking or refracting the images of a display, notably, a liquid crystal display (LCD). 19,20 A directional backlight autostereoscopic display (DBAD) is capable of decoupling imaging transmission with the display illumination, hence providing a great deal of freedom to optimize glasses-free 3D display with full high definition, viewing freedom, homogeneous illuminance, and low crosstalk.…”

Section: Introductionmentioning

confidence: 99%

“…At present, parallax three‐dimensional (3D) display tends to be suitable for practical application as the technology is constantly improving and as autostereoscopy is compatible to existing 3D display contents 7,8 . The parallax 3D display uses the parallax barrier, 9–13 cylindrical lens grating, 14–16 or Fresnel lens 17,18 as the splitting elements, and a viewer is able to view the parallax images by blocking or refracting the images of a display, notably, a liquid crystal display (LCD) 19,20 …”

Section: Introductionmentioning

confidence: 99%

A polarization modulated directional backlight autostereoscopic display

Fan

Chen

et al. 2022

J Soc Info Display

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A polarization modulated directional backlight autostereoscopic display is proposed and demonstrated. The system consists of the orthogonally polarized backlight, the Fresnel lens array, a light shaping diffuser film, and a liquid crystal display (LCD) with a microphase retardation film. The autostereoscopic image pair carried by the directional light with different polarization directions is simultaneously projected to different spatial directions. The simulation and experimental results show that the directional projection of parallax images is realized for a high‐quality autostereoscopic display with large viewing angle and continuous viewing volume, hence making it suitable for practical applications.

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Design of a bidirectional backlight using a pair of stacked light guide plates for large dual-view and 3D displays

Cited by 10 publications

References 14 publications

Global Evaluation and Optimization for a Directionally Illuminated Autostereoscopy

Global Evaluation and Optimization for a Directionally Illuminated Autostereoscopy

6.1: Autostereoscopic Display with a Multidirectional Backlight System and an Eye tracker

A polarization modulated directional backlight autostereoscopic display

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