58‐3: Sub‐KHz 4000‐PPI LCoS Phase Modulator for Holographic Displays

Yang, Jhou-Pu; Chen, Huang‐Ming Philip; Huang, Yuge; Wu, Shin‐Tson; Hsu, Cynthia; Ting, Lily; Hsu, Ron

doi:10.1002/sdtp.12359

Cited by 5 publications

(3 citation statements)

References 12 publications

(11 reference statements)

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“…High pixel density (~7000 ppi) 4K2K LCoS IC backplane suffers from low driving voltage (<3.3 V) limitations. The recently reported fast response time LCoS with PCM-2-01, L1, MCRI or UCF-L1 also requires at least 4~6 V driving voltage [22][23][24][25][26]. In this paper, we revealed a novel 1.2-inch 4K2K TN amplitude-type LCoS microdisplay (PCU-3-02-MD) with 1-ms RT under 5.0 V for displays.…”

Section: Introductionmentioning

confidence: 84%

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

Yang

Chen

Huang

et al. 2019

Symp Digest of Tech Papers

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The NCTU PCU-3-02 10-megapixel 4K2K (max. 4160x2464) LCoS panels with LCM-1107 nematic LC were assembled and evaluated. The results of both 1.2-inch 4K2K (~4,000 PPI) amplitude type LCoS microdisplay and 0.7-inch 4K2K (~7,000 PPI) phase-only type LCoS spatial light modulator (SLM) can achieve 1~2 ms response time at T=45 o C. Meanwhile, the phase linearity, precision and accuracy of 4K2K LCoS-SLM were assessed in this work. These new LCoS schemes will potentially be utilized in color-sequential, holographic, virtual and augmented reality display.

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Section: Introductionmentioning

confidence: 84%

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

Yang

Chen

Huang

et al. 2019

Symp Digest of Tech Papers

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“…w pixel and w fb are illustrated in Figure 7b, where it can be seen that both, being finite sizes, reduce the quality of the refractive index profile. The smallest pixel sizes currently achieved when the device is placed upon a silicon backplane (Liquid Crystal on Silicon, LCoS), are around 5 µm [104,108]. Due to silicon's high reflectivity, such LCoS devices can only operate in reflection mode, whereas Liquid Crystal on Poly Silicon (LCoPS) can work in transmission mode leads to larger minimum pixel sizes [21,109].…”

Section: Electronically Addressed Refractive Spatial Light Modulatorsmentioning

confidence: 99%

Liquid Crystal Devices for Beam Steering Applications

2021

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Liquid crystals are valuable materials for applications in beam steering devices. In this paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for beam steering and lensing devices is presented. The paper introduces the properties of liquid crystals that have made them useful in this field followed by a more detailed discussion of specific liquid crystal devices that act as switchable optical components of refractive and diffractive types. The relative advantages and disadvantages of the different devices and techniques are summarised.

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“…Several approaches to achieve high frame rates in high-resolution panels (≥4000 ppi) have been realized recently. Yang et al demonstrated 4000 ppi in a 0.55-inch 1920 × 1080 IC backplane with a pixel pitch of approximately 6.4 μm [23]. Abeeluck et al demonstrated a digital drive LCoS micro-display with a pixel pitch of 3 μm and a high fill factor of 93.5% in resolutions from 1080p to 4K [24].…”

Section: High Resolution and High Pixel-per-inch (Ppi)mentioning

confidence: 99%

Pursuing High Quality Phase-Only Liquid Crystal on Silicon (LCoS) Devices

et al. 2018

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Fine pixel size and high-resolution liquid crystal on silicon (LCoS) backplanes have been developed by various companies and research groups since 1973. The development of LCoS is not only beneficial for full high definition displays but also to spatial light modulation. The high-quality and well-calibrated panels can project computer generated hologram (CGH) designs faithfully for phase-only holography, which can be widely utilized in 2D/3D holographic video projectors and components for optical telecommunications. As a result, we start by summarizing the current status of high-resolution panels, followed by addressing issues related to the driving frequency (i.e., liquid crystal response time and hardware interface). LCoS panel qualities were evaluated based on the following four characteristics: phase linearity control, phase precision, phase stability, and phase accuracy.A phase-only spatial light modulator can be used as a key optical element for displays, adaptive optics for sensing, lithography, and telecommunication, as shown in Figure 2. The linearity of phase modulation, response time, phase precision, and phase stability are key characteristics for appraising or selecting phase-only LCoS-SLM panels for the applications designed. However, it is difficult to obtain a single LCoS possessing all the desired features for all applications. Their specification and performance optimization are application-driven. For example, response time is the current limitation in a holographic display. It may be more important than phase stability,

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58‐3: Sub‐KHz 4000‐PPI LCoS Phase Modulator for Holographic Displays

Cited by 5 publications

References 12 publications

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

Liquid Crystal Devices for Beam Steering Applications

Pursuing High Quality Phase-Only Liquid Crystal on Silicon (LCoS) Devices

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