Continuous pretilt angle controlled no-bias-bend pi cell via blended polyimide liquid crystal system

Dai Hyun Kim, Hong Gyu Park, Young Hwan Kim, Byoung Yong Kim, Chul Ho Ok, Jeong Yeon Hwang, Jeong Min Han, Yong Pil Park, Dae-Shik Seo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The controllable pre-tilt angle of liquid crystals was investigated using a blend of horizontal and vertical polyimide prepared using a rubbing method. Various pretilt angles ranging from 0 to 90 were achieved as a function of the vertical polyimide content. We observed uniform liquid crystal alignment on the rubbing-treated blended polyimide layer. A no-bias-bend (NBB) pi cell with an intermediate pretilt angle of 47.8 was manufactured. This cell had no initial bias voltage and a low threshold voltage, which indicates that it has low power consumption. In addition, the response time of the NBB pi cell was rapid.

Original languageEnglish
Pages (from-to)102-108
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Volume529
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

Liquid Crystals
polyimides
Polyimides
Liquid crystals
liquid crystals
cells
Bias voltage
Threshold voltage
threshold voltage
low voltage
Electric power utilization
alignment
electric potential

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kim, Dai Hyun ; Park, Hong Gyu ; Kim, Young Hwan ; Kim, Byoung Yong ; Ok, Chul Ho ; Hwang, Jeong Yeon ; Han, Jeong Min ; Park, Yong Pil ; Seo, Dae-Shik. / Continuous pretilt angle controlled no-bias-bend pi cell via blended polyimide liquid crystal system. In: Molecular Crystals and Liquid Crystals. 2010 ; Vol. 529. pp. 102-108.
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Continuous pretilt angle controlled no-bias-bend pi cell via blended polyimide liquid crystal system. / Kim, Dai Hyun; Park, Hong Gyu; Kim, Young Hwan; Kim, Byoung Yong; Ok, Chul Ho; Hwang, Jeong Yeon; Han, Jeong Min; Park, Yong Pil; Seo, Dae-Shik.

In: Molecular Crystals and Liquid Crystals, Vol. 529, 01.01.2010, p. 102-108.

Research output: Contribution to journalArticle

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AU - Kim, Dai Hyun

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AU - Hwang, Jeong Yeon

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