Dual mode LCDs with multistable and dynamic modes

Chi-Yen Huang, Chien Cheng Lai, Yao Hsien Tseng, Ya Ting Yang, Ching Jui Tien, Kuang Yao Lo

Research output: Contribution to conferencePaper

Abstract

We demonstrate a silica nanoparticle doped hybrid-aligned nematic (HAN) device, which can be operated in the dynamic mode and the multistable mode. Under AC voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast switching time for the dynamic mode. Under DC voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell multistable characteristics.

Original languageEnglish
Pages1551-1554
Number of pages4
Publication statusPublished - 2008 Dec 1
Event15th International Display Workshops, IDW '08 - Niigata, Japan
Duration: 2008 Dec 32008 Dec 5

Other

Other15th International Display Workshops, IDW '08
CountryJapan
CityNiigata
Period08-12-0308-12-05

Fingerprint

Liquid Crystals
Dielectric relaxation
Liquid crystal displays
Silicon Dioxide
Liquid crystals
Agglomeration
Silica
Nanoparticles
Electric potential
Relaxation time
Polarization

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Human-Computer Interaction
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Huang, C-Y., Lai, C. C., Tseng, Y. H., Yang, Y. T., Tien, C. J., & Lo, K. Y. (2008). Dual mode LCDs with multistable and dynamic modes. 1551-1554. Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan.
Huang, Chi-Yen ; Lai, Chien Cheng ; Tseng, Yao Hsien ; Yang, Ya Ting ; Tien, Ching Jui ; Lo, Kuang Yao. / Dual mode LCDs with multistable and dynamic modes. Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan.4 p.
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Huang, C-Y, Lai, CC, Tseng, YH, Yang, YT, Tien, CJ & Lo, KY 2008, 'Dual mode LCDs with multistable and dynamic modes' Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan, 08-12-03 - 08-12-05, pp. 1551-1554.

Dual mode LCDs with multistable and dynamic modes. / Huang, Chi-Yen; Lai, Chien Cheng; Tseng, Yao Hsien; Yang, Ya Ting; Tien, Ching Jui; Lo, Kuang Yao.

2008. 1551-1554 Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan.

Research output: Contribution to conferencePaper

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AU - Huang, Chi-Yen

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AU - Lo, Kuang Yao

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N2 - We demonstrate a silica nanoparticle doped hybrid-aligned nematic (HAN) device, which can be operated in the dynamic mode and the multistable mode. Under AC voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast switching time for the dynamic mode. Under DC voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell multistable characteristics.

AB - We demonstrate a silica nanoparticle doped hybrid-aligned nematic (HAN) device, which can be operated in the dynamic mode and the multistable mode. Under AC voltage excitation, the interfacial polarization effect between the homogeneously dispersed nanoparticles and the liquid crystal (LC) host reduces the dielectric relaxation time of the LC-silica dispersion, giving the LC cell a fast switching time for the dynamic mode. Under DC voltage excitation, the silica nanoparticles accumulated on the planar side of the cell, creating agglomerates to stabilize the homeotropically aligned LCs, which is retained after switching off the voltage, giving the cell multistable characteristics.

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Huang C-Y, Lai CC, Tseng YH, Yang YT, Tien CJ, Lo KY. Dual mode LCDs with multistable and dynamic modes. 2008. Paper presented at 15th International Display Workshops, IDW '08, Niigata, Japan.