Switching of polymer-stabilized vertical alignment liquid crystal pi cell-curing voltage and driving scheme effects

Chi Yen Huang, Wen Yi Jhuang, Chia Ting Hsieh, Chi Huang Lin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We investigate the electrooptical properties of polymer-stabilized vertically aligned (PSVA) pi cells. Curing a cell with a curing voltage causes the polymerized cell to have a low threshold voltage and a fast field-on response time, because the curing voltage gives the polymerized cell in-cell polymer structures, inhibiting the flow of the liquid crystal (LC) domains and also providing the LCs a sustained pretilt angle. Additionally, under high-voltage operation, the field-on and field-off response times of the PSVA pi cell operated under the step voltage driving scheme are found to be less than those of the cell operated under the conventional bias voltage driving scheme, because the electric torques exerted on the LCs in the step voltage driving scheme are higher than those exerted on the LCs in the bias voltage driving scheme,

Original languageEnglish
Article number020210
JournalJapanese Journal of Applied Physics
Volume48
Issue number2
DOIs
Publication statusPublished - 2009 Feb 1

Fingerprint

curing
Liquid crystals
Curing
liquid crystals
alignment
polymers
Electric potential
electric potential
Polymers
cells
Bias voltage
Threshold voltage
Torque
threshold voltage
low voltage
torque
high voltages
causes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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title = "Switching of polymer-stabilized vertical alignment liquid crystal pi cell-curing voltage and driving scheme effects",
abstract = "We investigate the electrooptical properties of polymer-stabilized vertically aligned (PSVA) pi cells. Curing a cell with a curing voltage causes the polymerized cell to have a low threshold voltage and a fast field-on response time, because the curing voltage gives the polymerized cell in-cell polymer structures, inhibiting the flow of the liquid crystal (LC) domains and also providing the LCs a sustained pretilt angle. Additionally, under high-voltage operation, the field-on and field-off response times of the PSVA pi cell operated under the step voltage driving scheme are found to be less than those of the cell operated under the conventional bias voltage driving scheme, because the electric torques exerted on the LCs in the step voltage driving scheme are higher than those exerted on the LCs in the bias voltage driving scheme,",
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Switching of polymer-stabilized vertical alignment liquid crystal pi cell-curing voltage and driving scheme effects. / Huang, Chi Yen; Jhuang, Wen Yi; Hsieh, Chia Ting; Lin, Chi Huang.

In: Japanese Journal of Applied Physics, Vol. 48, No. 2, 020210, 01.02.2009.

Research output: Contribution to journalArticle

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AB - We investigate the electrooptical properties of polymer-stabilized vertically aligned (PSVA) pi cells. Curing a cell with a curing voltage causes the polymerized cell to have a low threshold voltage and a fast field-on response time, because the curing voltage gives the polymerized cell in-cell polymer structures, inhibiting the flow of the liquid crystal (LC) domains and also providing the LCs a sustained pretilt angle. Additionally, under high-voltage operation, the field-on and field-off response times of the PSVA pi cell operated under the step voltage driving scheme are found to be less than those of the cell operated under the conventional bias voltage driving scheme, because the electric torques exerted on the LCs in the step voltage driving scheme are higher than those exerted on the LCs in the bias voltage driving scheme,

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