Alignment capabilities and EO performances of VA-LCD using transparent conductive Al-doped ZnO films

Sang Hoon Kim, Jeoung Yeon Hwang, Jong Hwan Kim, Young Hwan Kim, Dong Hun Kang, Sang Keuk Lee, Jin Woo Han, Chul Ho Ok, Dae Shik Seo, Eung Sang Kim

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Abstract

Transparent electrodes are indispensable for most of the flat panel display as liquid crystal display (LCD). We investigated liquid crystal (LC) aligning capabilities and electro-optical (EO) characteristics of transparent electrodes as Al-doped ZnO (ZnO:Al) substituting indium tin oxide (ITO). The experiment results show that a uniform vertical LC alignment on ZnO:Al electrodes based on a rubbed polyimide (PI) surface were achieved. A high pretilt angle of about 88 was obtained. EO performances of the VA-LCD on rubbed PI surfaces with ZnO:Al is almost the same as that of the VA-LCD with ITO electrodes. These results appeared that ZnO:Al electrodes as transparent electrodes of LCDs could substitute ITO electrodes.

Original languageEnglish
Pages (from-to)23-32
Number of pages10
JournalMolecular Crystals and Liquid Crystals
Volume475
Issue number1
DOIs
Publication statusPublished - 2007 Jan 1

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All Science Journal Classification (ASJC) codes

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

Cite this

Kim, S. H., Hwang, J. Y., Kim, J. H., Kim, Y. H., Kang, D. H., Lee, S. K., Han, J. W., Ok, C. H., Seo, D. S., & Kim, E. S. (2007). Alignment capabilities and EO performances of VA-LCD using transparent conductive Al-doped ZnO films. Molecular Crystals and Liquid Crystals, 475(1), 23-32. https://doi.org/10.1080/15421400701732514