Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution

Young Chul Kim; Jun Young Lee; Seung Sik Pak; Chung Yup Kim

doi:10.1080/10587259908026803

Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution

Young Chul Kim, Jun Young Lee, Seung Sik Pak, Chung Yup Kim

Department of Chemical Engineering

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

3 Scopus citations

Abstract

A reflective mode bistable cholesteric/polymer dispersion(CPD) display is proposed in which both the electrode and the light-absorbing layer of the conventional display were substituted with a single polypyrrole(PPy) layer spin-cast from the chloroform solution. Utilization of the black conductive PPy film coated on the inner surface of the rear glass plate not only provided a convenient and economic method of fabricating CPD displays but also improved the contrast ratio by about 20%. By incorporating 20% of polymer into the chiral nematic mixture, the bistabilily and the viewing angle of the display were remarkably enhanced while the reflectance decreased from 89 to 29%.

Original language	English
Pages (from-to)	157-160
Number of pages	4
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	327
DOIs	https://doi.org/10.1080/10587259908026803
State	Published - 1999

Keywords

Reflective bistable cholesteric display
Soluble polypyrrole

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10.1080/10587259908026803

Cite this

@article{5308e0dce3614b11822a465b658d0785,

title = "Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution",

abstract = "A reflective mode bistable cholesteric/polymer dispersion(CPD) display is proposed in which both the electrode and the light-absorbing layer of the conventional display were substituted with a single polypyrrole(PPy) layer spin-cast from the chloroform solution. Utilization of the black conductive PPy film coated on the inner surface of the rear glass plate not only provided a convenient and economic method of fabricating CPD displays but also improved the contrast ratio by about 20\%. By incorporating 20\% of polymer into the chiral nematic mixture, the bistabilily and the viewing angle of the display were remarkably enhanced while the reflectance decreased from 89 to 29\%.",

keywords = "Reflective bistable cholesteric display, Soluble polypyrrole",

author = "Kim, \{Young Chul\} and Lee, \{Jun Young\} and Pak, \{Seung Sik\} and Kim, \{Chung Yup\}",

year = "1999",

doi = "10.1080/10587259908026803",

language = "English",

volume = "327",

pages = "157--160",

journal = "Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals",

issn = "1058-725X",

publisher = "Taylor and Francis Ltd.",

}

Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution. / Kim, Young Chul; Lee, Jun Young; Pak, Seung Sik et al.
In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 327, 1999, p. 157-160.

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

TY - JOUR

T1 - Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution

AU - Kim, Young Chul

AU - Lee, Jun Young

AU - Pak, Seung Sik

AU - Kim, Chung Yup

PY - 1999

Y1 - 1999

N2 - A reflective mode bistable cholesteric/polymer dispersion(CPD) display is proposed in which both the electrode and the light-absorbing layer of the conventional display were substituted with a single polypyrrole(PPy) layer spin-cast from the chloroform solution. Utilization of the black conductive PPy film coated on the inner surface of the rear glass plate not only provided a convenient and economic method of fabricating CPD displays but also improved the contrast ratio by about 20%. By incorporating 20% of polymer into the chiral nematic mixture, the bistabilily and the viewing angle of the display were remarkably enhanced while the reflectance decreased from 89 to 29%.

AB - A reflective mode bistable cholesteric/polymer dispersion(CPD) display is proposed in which both the electrode and the light-absorbing layer of the conventional display were substituted with a single polypyrrole(PPy) layer spin-cast from the chloroform solution. Utilization of the black conductive PPy film coated on the inner surface of the rear glass plate not only provided a convenient and economic method of fabricating CPD displays but also improved the contrast ratio by about 20%. By incorporating 20% of polymer into the chiral nematic mixture, the bistabilily and the viewing angle of the display were remarkably enhanced while the reflectance decreased from 89 to 29%.

KW - Reflective bistable cholesteric display

KW - Soluble polypyrrole

UR - https://www.scopus.com/pages/publications/0041725722

U2 - 10.1080/10587259908026803

DO - 10.1080/10587259908026803

M3 - Article

AN - SCOPUS:0041725722

SN - 1058-725X

VL - 327

SP - 157

EP - 160

JO - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

ER -

Reflective Bistable Cholesteric/Polymer Dispersion Display with a Black Polypyrrole Electrode Cast from the Solution

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Keywords

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