Scalable coarse integral holographic video display with integrated spatial image tiling

Li, Jin; Smithwick, Quinn; Chu, Daping

doi:10.1364/oe.386675

Cited by 19 publications

(13 citation statements)

References 30 publications

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“…The use of the time-multiplexing technique to increase the screen size is described the following section. Many research works have made use of the space-multiplexing technique to increase the screen size of the holographic displays [10][11][12]28]. The combination of the 2D scanning system and two DMDs was used to increase the screen size to 10 × 20 mm 2 [28].…”

Section: Multi-channel Scanning Systemmentioning

confidence: 99%

“…Many research works have made use of the space-multiplexing technique to increase the screen size of the holographic displays [10][11][12]28]. The combination of the 2D scanning system and two DMDs was used to increase the screen size to 10 × 20 mm 2 [28]. The space-multiplexing technique has also been used for the holographic displays using liquid-crystal (LC) SLMs to increase the screen size because of the low frame rate of the LC SLMs.…”

Section: Multi-channel Scanning Systemmentioning

confidence: 99%

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Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems

Takaki

2022

Applied Sciences

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The problems of conventional holographic display techniques, which are the requirements of a sub-micron pixel pitch and ultra-high resolution for spatial light modulators (SLMs) to enlarge the viewing zone and screen size, can be addressed using microelectromechanical systems (MEMS) SLMs combined with spatial scanning systems. Various scanning systems have been efficiently combined with high-speed image generation of MEMS SLMs based on the time-multiplexing technique. The horizontal scanning system enlarged the viewing zone and screen size, the circular scanning system provided 360° three-dimensional (3D) images, and the RGB scanning system generated color 3D images. The screen size can be increased scalably using a multichannel system based on the space-multiplexing technique. The use of a short laser pulse illumination system eliminates the mechanical scanning system and greatly simplifies the display system. The measurements of the accommodation responses of human eyes showed that 3D images generated by the screen scanning holographic display have a possibility to solve the visual fatigue issue caused by the vergence–accommodation conflict, which prevents the long-time usage of conventional 3D displays.

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Section: Multi-channel Scanning Systemmentioning

confidence: 99%

Section: Multi-channel Scanning Systemmentioning

confidence: 99%

Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems

Takaki

2022

Applied Sciences

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“…Quantum dots (QDs) are ultrasmall nanocrystals with exceptional optical properties, such as narrow emission bandwidths, high brightness, photostability, and tunable emitting colors, making them highly valued in the fabrication of various lighting devices. − In recent decades, QD materials have been made in illumination and display applications, known as quantum dot light-emitting diodes (QLED) devices. − However, the film made of inorganic QD nanoparticles cannot be constructed by evaporation, unlike the film fabrication process of organic materials. , As a result, the high solubility of QD nanocrystals in solvent makes solution processes a useful and scalable method for depositing QD film. ,, However, the solution processes for high-resolution QLED often face critical bottlenecks, such as disordered patterns, nonuniform thickness, or unclear boundaries when dealing with complex QD films that have multiple colors and high-pixel patterns. , Therefore, the fabrication of high-resolution multiple QD patterned arrays using a simple, effective, and low-cost method remains a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

CdSe/ZnS Quantum Dot Patterned Arrays for Full-Color Light-Emitting Diodes in Active-Matrix QLED Display

Li,

Sun,

Zhang

et al. 2024

ACS Appl. Nano Mater.

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Quantum dot light-emitting diodes (QLEDs) are increasingly being recognized as next-generation display technology, owing to their wide color gamut, high saturation levels, and low energy consumption. However, the primary challenge in QLED display fabrication lies in precisely depositing these inorganic quantum dot (QD) nanoparticles over a large area multiple times. Nowadays, solution processes such as inkjet printing and screen printing have been employed to address these challenges; however, they still have some trade-offs between multicolor deposition, precise spatial arrangement, and equipment cost. Here, the precise assembly of multiple QD patterned arrays on one target substrate was achieved using an asymmetric wettability interface assembly (AWIA) template, resulting in a high-pixel resolution and full-color QLED device. The asymmetric wettability interface between the top and bottom of the silicon pillar on the template allows for precise splitting and pinning of a continuous liquid film, facilitating further assembly of QD pattern arrays. Additionally, the multicolor and multishape QD pattern array was created through QD surface modification (orthogonal solvent protection) and dislocation pinning processes (reducing dissolution time) during the repetition process. Consequently, high-resolution (each pixel ≈ 10 μm; PPI ≈ 1278) full-color (yellow, cyan, violet, and white) QLED devices were fabricated efficiently. This approach offers a perspective for assembling multiple micropatterned arrays for high-resolution electronic devices.

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“…Phase-only liquid-crystal-on-silicon spatial light modulator (LCOS SLM) is becoming an important tool for laser processing in a range of systems [1][2][3][4]. And it has already demonstrated its potential for this application in tailoring ultrafast laser writing beams for optical data storage.…”

Section: Introductionmentioning

confidence: 99%

Efficient dynamic control method of light polarization using single phase-only liquid crystal on silicon spatial light modulators for optical data storage

Hong¹,

Li²,

Chu³

2021

Appl. Opt.

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The technology of five-dimensional (5D) optical data storage in transparent materials paves a promising way to unlimited lifetime data storage for future cloud use. Phase-only liquid-crystal-on-silicon spatial light modulators (LCOS SLMs) have already exhibited its potential for this application in tailoring ultrafast laser writing beams for 5D optical data storage. A phase-only LCOS SLM can generate arbitrary data patterns by using diffractive holographic imaging for data writing light beam generation. However, the polarization control of the output holographic image is still achieved by using an external polarization modulator, which leads to complications, bulkiness, and large delays in current methods. In this paper, we presented an efficient phase and polarization modulation method through a compact system based on a single phase-only LCOS SLM to simultaneously control both the holographic image and its polarization state. The proposed method utilizes two-polarization-component coding in conjunction with a polarization component rotation technique in a compact system. Using this polarization rotation technique, two light components can be independently coded by separately using two holograms on two halves of the LCOS SLM. We experimentally construct a proof-of-concept prototype of the compact system, and the effectiveness of the system has been experimentally verified.

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Scalable coarse integral holographic video display with integrated spatial image tiling

Cited by 19 publications

References 30 publications

Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems

Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems

CdSe/ZnS Quantum Dot Patterned Arrays for Full-Color Light-Emitting Diodes in Active-Matrix QLED Display

Efficient dynamic control method of light polarization using single phase-only liquid crystal on silicon spatial light modulators for optical data storage

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