Spatial light modulators for high-brightness projection displays

Kuniharu Takizawa; Takanori Fujii; Hiroshi Kikuchi; Hideo Fujikake; Masahiro Kawakita; Yoshiyuki Hirano; Fumio Sato

doi:10.1364/AO.38.005646

Spatial light modulators for high-brightness projection displays

Kuniharu Takizawa, Takanori Fujii, Hiroshi Kikuchi, Hideo Fujikake, Masahiro Kawakita, Yoshiyuki Hirano, Fumio Sato

ENG - Electronic Engineering

Nippon Hoso Kyokai

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We fabricated polymer-dispersed liquid-crystal light valves (PDLCLV’s) consisting of a 30-mm-thick hydrogenated amorphous-silicon film and a 10-mm-thick polymer-dispersed liquid-crystal (PDLC) film composed of nematic liquid-crystal (LC) microdroplets surrounded by polymer. The device can modulate high-power reading light, because the PDLC becomes transparent or opalescent independent of the polarization state of the reading light when either sufficient or no writing light is incident on the PDLCLV. This device has a limiting resolution of 50 lpymm (lp indicates line pairs), a reading light efficiency of 60%, a ratio of intensity of light incident on the PDLC layer to intensity of light radiated from the layer, and an extinction ratio of 130:1. The optically addressed video projection system with three PDLCLV’s, LC panels of 1048 × 480 pixels as input image sources, a 1-kW Xe lamp, and a schlieren optical system projected television (TV) pictures of 600 and 450 TV lines in the horizontal and the vertical directions on a screen with a diagonal length of 100 in. The total output flux of this system was 1500 lm.

Original language	English
Pages (from-to)	5646-5655
Number of pages	10
Journal	Applied Optics
Volume	38
Issue number	26
DOIs	https://doi.org/10.1364/AO.38.005646
Publication status	Published - 1999 Sept 10

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title = "Spatial light modulators for high-brightness projection displays",

abstract = "We fabricated polymer-dispersed liquid-crystal light valves (PDLCLV{\textquoteright}s) consisting of a 30-mm-thick hydrogenated amorphous-silicon film and a 10-mm-thick polymer-dispersed liquid-crystal (PDLC) film composed of nematic liquid-crystal (LC) microdroplets surrounded by polymer. The device can modulate high-power reading light, because the PDLC becomes transparent or opalescent independent of the polarization state of the reading light when either sufficient or no writing light is incident on the PDLCLV. This device has a limiting resolution of 50 lpymm (lp indicates line pairs), a reading light efficiency of 60%, a ratio of intensity of light incident on the PDLC layer to intensity of light radiated from the layer, and an extinction ratio of 130:1. The optically addressed video projection system with three PDLCLV{\textquoteright}s, LC panels of 1048 × 480 pixels as input image sources, a 1-kW Xe lamp, and a schlieren optical system projected television (TV) pictures of 600 and 450 TV lines in the horizontal and the vertical directions on a screen with a diagonal length of 100 in. The total output flux of this system was 1500 lm.",

author = "Kuniharu Takizawa and Takanori Fujii and Hiroshi Kikuchi and Hideo Fujikake and Masahiro Kawakita and Yoshiyuki Hirano and Fumio Sato",

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AU - Takizawa, Kuniharu

AU - Fujii, Takanori

AU - Kikuchi, Hiroshi

AU - Fujikake, Hideo

AU - Kawakita, Masahiro

AU - Hirano, Yoshiyuki

AU - Sato, Fumio

PY - 1999/9/10

Y1 - 1999/9/10

N2 - We fabricated polymer-dispersed liquid-crystal light valves (PDLCLV’s) consisting of a 30-mm-thick hydrogenated amorphous-silicon film and a 10-mm-thick polymer-dispersed liquid-crystal (PDLC) film composed of nematic liquid-crystal (LC) microdroplets surrounded by polymer. The device can modulate high-power reading light, because the PDLC becomes transparent or opalescent independent of the polarization state of the reading light when either sufficient or no writing light is incident on the PDLCLV. This device has a limiting resolution of 50 lpymm (lp indicates line pairs), a reading light efficiency of 60%, a ratio of intensity of light incident on the PDLC layer to intensity of light radiated from the layer, and an extinction ratio of 130:1. The optically addressed video projection system with three PDLCLV’s, LC panels of 1048 × 480 pixels as input image sources, a 1-kW Xe lamp, and a schlieren optical system projected television (TV) pictures of 600 and 450 TV lines in the horizontal and the vertical directions on a screen with a diagonal length of 100 in. The total output flux of this system was 1500 lm.

AB - We fabricated polymer-dispersed liquid-crystal light valves (PDLCLV’s) consisting of a 30-mm-thick hydrogenated amorphous-silicon film and a 10-mm-thick polymer-dispersed liquid-crystal (PDLC) film composed of nematic liquid-crystal (LC) microdroplets surrounded by polymer. The device can modulate high-power reading light, because the PDLC becomes transparent or opalescent independent of the polarization state of the reading light when either sufficient or no writing light is incident on the PDLCLV. This device has a limiting resolution of 50 lpymm (lp indicates line pairs), a reading light efficiency of 60%, a ratio of intensity of light incident on the PDLC layer to intensity of light radiated from the layer, and an extinction ratio of 130:1. The optically addressed video projection system with three PDLCLV’s, LC panels of 1048 × 480 pixels as input image sources, a 1-kW Xe lamp, and a schlieren optical system projected television (TV) pictures of 600 and 450 TV lines in the horizontal and the vertical directions on a screen with a diagonal length of 100 in. The total output flux of this system was 1500 lm.

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Spatial light modulators for high-brightness projection displays

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