Non polarizer guest-host mode based on dyes with negative dichroism

Vladimir Chigrinov; Elena Prudnikova; Kwan Wah Ng; Hoi Sing Kwok

doi:10.1143/jjap.42.1297

Non polarizer guest-host mode based on dyes with negative dichroism

Vladimir Chigrinov^*, Elena Prudnikova, Kwan Wah Ng, Hoi Sing Kwok

^*Corresponding author for this work

Department of Electronic and Computer Engineering

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

12 Citations (Scopus)

Abstract

A new configuration of non polarizer "guest-host" mode, based on the liquid crystal mixture doped with black mixtures of dichroic dyes with negative dichroism, is proposed and demonstrated for the first time. Both transmissive and reflective variants are possible with either monochromatic or black/white switching. It is shown that the contrast ratio is not limited in this case. A contrast ratio of more than 5 : 1 for normal incidence and a contrast ratio of more than 3 : 1 for wide viewing angles are demonstrated in an experiment and the electrooptic response is found to be almost independent of the azimuthal angle of light incidence.

Original language	English
Pages (from-to)	1297-1300
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	42
Issue number	3
DOIs	https://doi.org/10.1143/jjap.42.1297
Publication status	Published - 1 Mar 2003

Keywords

"guest-host" effect
Black mixture
Dichroic dye
Liquid crystal display
Negative dichroism
Viewing angles

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10.1143/jjap.42.1297

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title = "Non polarizer guest-host mode based on dyes with negative dichroism",

abstract = "A new configuration of non polarizer {"}guest-host{"} mode, based on the liquid crystal mixture doped with black mixtures of dichroic dyes with negative dichroism, is proposed and demonstrated for the first time. Both transmissive and reflective variants are possible with either monochromatic or black/white switching. It is shown that the contrast ratio is not limited in this case. A contrast ratio of more than 5 : 1 for normal incidence and a contrast ratio of more than 3 : 1 for wide viewing angles are demonstrated in an experiment and the electrooptic response is found to be almost independent of the azimuthal angle of light incidence.",

keywords = "{"}guest-host{"} effect, Black mixture, Dichroic dye, Liquid crystal display, Negative dichroism, Viewing angles",

author = "Vladimir Chigrinov and Elena Prudnikova and Ng, \{Kwan Wah\} and Kwok, \{Hoi Sing\}",

year = "2003",

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doi = "10.1143/jjap.42.1297",

language = "English",

volume = "42",

pages = "1297--1300",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers",

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TY - JOUR

T1 - Non polarizer guest-host mode based on dyes with negative dichroism

AU - Chigrinov, Vladimir

AU - Prudnikova, Elena

AU - Ng, Kwan Wah

AU - Kwok, Hoi Sing

PY - 2003/3/1

Y1 - 2003/3/1

N2 - A new configuration of non polarizer "guest-host" mode, based on the liquid crystal mixture doped with black mixtures of dichroic dyes with negative dichroism, is proposed and demonstrated for the first time. Both transmissive and reflective variants are possible with either monochromatic or black/white switching. It is shown that the contrast ratio is not limited in this case. A contrast ratio of more than 5 : 1 for normal incidence and a contrast ratio of more than 3 : 1 for wide viewing angles are demonstrated in an experiment and the electrooptic response is found to be almost independent of the azimuthal angle of light incidence.

AB - A new configuration of non polarizer "guest-host" mode, based on the liquid crystal mixture doped with black mixtures of dichroic dyes with negative dichroism, is proposed and demonstrated for the first time. Both transmissive and reflective variants are possible with either monochromatic or black/white switching. It is shown that the contrast ratio is not limited in this case. A contrast ratio of more than 5 : 1 for normal incidence and a contrast ratio of more than 3 : 1 for wide viewing angles are demonstrated in an experiment and the electrooptic response is found to be almost independent of the azimuthal angle of light incidence.

KW - "guest-host" effect

KW - Black mixture

KW - Dichroic dye

KW - Liquid crystal display

KW - Negative dichroism

KW - Viewing angles

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000182276000038

UR - https://openalex.org/W2024925398

UR - https://www.scopus.com/pages/publications/0038629394

U2 - 10.1143/jjap.42.1297

DO - 10.1143/jjap.42.1297

M3 - Journal Article

SN - 0021-4922

VL - 42

SP - 1297

EP - 1300

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

IS - 3

ER -

Non polarizer guest-host mode based on dyes with negative dichroism

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Keywords

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