Regional gamma curve calibration of liquid crystal SLM for holographic display

Tao Zhao, Juan Liu, Qiankun Gao, Junyi Duan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The liquid crystal spatial light modulator is able to provide flexible wavefront modulation, whereas its nonlinear and spatial varying phase response will influence the modulation accuracy. In this paper, a software based C++ algorithm are designed to calibrate these distortions regionally. Twyman-Green interference method is utilized for gray versus phase shift measurement. The curvature of cover glass is measured by phase shift algorithm. Finally the entire panel is divided into several local regions to overcome the spatial varying phase response. For each sub-region, the nonlinear phase response is calibrated by remapping table. For a Jasper 4K SLM panel, when three local regions are built, the root mean error of linear phase shift is reduced to approximate 0.1 rad. The calibrated SLM is applied for holographic display and the improvement ratios of structural similarity index reach 30.6%, 62.5%, and 43.6% for R, G, and B reconstructed components respectively.

Original languageEnglish
Title of host publicationPractical Holography XXXII
Subtitle of host publicationDisplays, Materials, and Applications
EditorsV. Michael Bove, Hans I. Bjelkhagen, Hans I. Bjelkhagen
PublisherSPIE
ISBN (Electronic)9781510616011
DOIs
Publication statusPublished - 2018
EventPractical Holography XXXII: Displays, Materials, and Applications 2018 - San Francisco, United States
Duration: 29 Jan 201831 Jan 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10558
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePractical Holography XXXII: Displays, Materials, and Applications 2018
Country/TerritoryUnited States
CitySan Francisco
Period29/01/1831/01/18

Keywords

  • Calibration
  • Holographic display
  • Interferometry

Fingerprint

Dive into the research topics of 'Regional gamma curve calibration of liquid crystal SLM for holographic display'. Together they form a unique fingerprint.

Cite this