Abstract
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.
Highlights
We reveal current progress and approaches in designing and developing high-quality phase-only liquid crystal on silicon (LCoS)-spatial light modulator (SLM) with the progress and approaches in designing and developing high-quality phase-only LCoS-SLM with the assessment of following criteria: panel resolution, driving frequency (LC response time and assessment of following criteria: panel resolution, driving frequency (LC response time and hardware hardware interface), phase linearity control, phase precision, phase stability, and phase accuracy
LCoS technology has been developed for nearly four decades
High-resolution and fine pixel size LCoS backplanes have been produced by several vendors, and appear to offer more promising spatial light modulation than full high definition displays
Summary
In 1993, resolution was further increased to a 254 × 254 pixel array by DisplayTech ( CITIZEN FINEDEVICE (CFD) Co., LTD, Yamanashi, Japan) Their panel adopted the fast-switching ferroelectric liquid crystal (FLC) and implemented the field-sequential color system to generate a full color display. Hamamatsu provides pure-phase SLM solutions with design [10]. Hamamatsu provides pure-phase SLM solutions with high linearity and precision. It provides SLMs for high-power laser applications [11]. Meadowlark Optics features the analog drive LCoS-SLM solution, which has a fast liquid crystal (LC).
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