*Proceeding Paper* **Field of View Enhancement of Dynamic Holographic Displays Using Algorithms, Devices, and Systems: A Review †**

**Monika Rani, Narmada Joshi, Bhargab Das and Raj Kumar \***

CSIR—Central Scientific Instruments Organization, Sector 30C, Chandigarh 160030, India; monikarani@csio.res.in (M.R.); narmadajoshi1994@gmail.com (N.J.); bhargab.das@csio.res.in (B.D.)

**\*** Correspondence: raj.optics@csio.res.in

† Presented at the International Conference on "Holography Meets Advanced Manufacturing", Online, 20–22 February 2023.

**Abstract:** Holography is a prominent 3D display approach as it offers a realistic 3D display without the need for special glasses. Due to advancements in computation power and optoelectronic technology, holographic displays have emerged as widely appreciated technology among other 3D display technologies and have drawn a lot of research interest in recent years. The core of dynamic holographic displays is spatial light modulator (SLM) technology. However, owing to the limited resolution and large pixel size of SLMs, holographic displays suffer from certain bottlenecks such as limited field of view (FOV) and narrow viewing angle. To develop a holographic display at the commercial level, it is crucial to solve these problems. A variety of probable solutions to these challenges may be found in the literature. In this review, we discuss the essence of these approaches. We study the important milestones of the various methodologies from three primary perspectives algorithms, optical systems, and devices employed for FOV extension—and provide useful insights for future research.

**Keywords:** holographic displays; field of view; spatial light modulator
