Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen

Dong Won Kwon; Young Jin Lim; Eun Jeong Jeon; Dae Hyun Kim; Jong Hoon Kim; Pankaj Kumar; Myong Hoon Lee; Seung Hee Lee

doi:10.1016/j.cap.2010.11.039

Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen

Dong Won Kwon
, Young Jin Lim
, Eun Jeong Jeon
, Dae Hyun Kim
, Jong Hoon Kim
, Pankaj Kumar
, Myong Hoon Lee
, Seung Hee Lee

Department of Polymer -Nano Science &Technology

Jeonbuk National University

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

9 Scopus citations

Abstract

A hybrid aligned nematic liquid crystal compensation film using UV curable rod-like mesogen has been made to compensate the residual birefringence of a twisted nematic (TN) device at oblique viewing directions in the dark state. Effective retardation value of the fabricated film was characterized by experiment and calculation using simulation. The results showed that the film has a hybrid alignment with a tilt angle variation from 3° to 19°. The optical compensation effects are evaluated in terms of light leakage in the dark state and contrast ratio (CR). The measured results showed that the light leakage is greatly suppressed with the compensation film and the viewing angle characteristics of TN device are greatly improved, most particularly in the up direction.

Original language	English
Pages (from-to)	725-730
Number of pages	6
Journal	Current Applied Physics
Volume	11
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2010.11.039
State	Published - 2011.05

Keywords

Hybrid aligned compensation film
Twisted nematic
UV curable rod-like mesogen

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

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10.1016/j.cap.2010.11.039

Cite this

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title = "Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen",

abstract = "A hybrid aligned nematic liquid crystal compensation film using UV curable rod-like mesogen has been made to compensate the residual birefringence of a twisted nematic (TN) device at oblique viewing directions in the dark state. Effective retardation value of the fabricated film was characterized by experiment and calculation using simulation. The results showed that the film has a hybrid alignment with a tilt angle variation from 3° to 19°. The optical compensation effects are evaluated in terms of light leakage in the dark state and contrast ratio (CR). The measured results showed that the light leakage is greatly suppressed with the compensation film and the viewing angle characteristics of TN device are greatly improved, most particularly in the up direction.",

keywords = "Hybrid aligned compensation film, Twisted nematic, UV curable rod-like mesogen",

author = "Kwon, \{Dong Won\} and Lim, \{Young Jin\} and Jeon, \{Eun Jeong\} and Kim, \{Dae Hyun\} and Kim, \{Jong Hoon\} and Pankaj Kumar and Lee, \{Myong Hoon\} and Lee, \{Seung Hee\}",

year = "2011",

month = may,

doi = "10.1016/j.cap.2010.11.039",

language = "English",

volume = "11",

pages = "725--730",

journal = "Current Applied Physics",

issn = "1567-1739",

number = "3",

}

TY - JOUR

T1 - Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen

AU - Kwon, Dong Won

AU - Lim, Young Jin

AU - Jeon, Eun Jeong

AU - Kim, Dae Hyun

AU - Kim, Jong Hoon

AU - Kumar, Pankaj

AU - Lee, Myong Hoon

AU - Lee, Seung Hee

PY - 2011/5

Y1 - 2011/5

N2 - A hybrid aligned nematic liquid crystal compensation film using UV curable rod-like mesogen has been made to compensate the residual birefringence of a twisted nematic (TN) device at oblique viewing directions in the dark state. Effective retardation value of the fabricated film was characterized by experiment and calculation using simulation. The results showed that the film has a hybrid alignment with a tilt angle variation from 3° to 19°. The optical compensation effects are evaluated in terms of light leakage in the dark state and contrast ratio (CR). The measured results showed that the light leakage is greatly suppressed with the compensation film and the viewing angle characteristics of TN device are greatly improved, most particularly in the up direction.

AB - A hybrid aligned nematic liquid crystal compensation film using UV curable rod-like mesogen has been made to compensate the residual birefringence of a twisted nematic (TN) device at oblique viewing directions in the dark state. Effective retardation value of the fabricated film was characterized by experiment and calculation using simulation. The results showed that the film has a hybrid alignment with a tilt angle variation from 3° to 19°. The optical compensation effects are evaluated in terms of light leakage in the dark state and contrast ratio (CR). The measured results showed that the light leakage is greatly suppressed with the compensation film and the viewing angle characteristics of TN device are greatly improved, most particularly in the up direction.

KW - Hybrid aligned compensation film

KW - Twisted nematic

KW - UV curable rod-like mesogen

UR - https://www.scopus.com/pages/publications/79951670172

U2 - 10.1016/j.cap.2010.11.039

DO - 10.1016/j.cap.2010.11.039

M3 - Journal article

AN - SCOPUS:79951670172

SN - 1567-1739

VL - 11

SP - 725

EP - 730

JO - Current Applied Physics

JF - Current Applied Physics

IS - 3

ER -

Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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