A new pixel design and a novel driving scheme for multi-domain vertically aligned LCDs

— By using a new pixel design and a novel driving scheme that adds a bias electrode and a bias TFT to the ordinary pixel structure, a high‐contrast‐ratio and wide‐viewing‐angle LCD mode, refered to as the biased vertical‐alignment (BVA) mode, has been sucessfully developed. Compared to the published...

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Published in:Journal of the Society for Information Display 2007-02, Vol.15 (2), p.145-150
Main Authors: Shih, Po-Sheng, Wang, Wei-Hsin, Pan, Hsuan-Lin, Yang, Kei-Hsiung
Format: Article
Language:English
Subjects:
liquid-crystal display (LCD)
Vertical alignment (VA)
wide-viewing angle
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cited_by cdi_FETCH-LOGICAL-c3075-fde18bfe9cb8416fb0d91dd7809d0ca137eba58a848031a9a8ef3a161ca3f5403
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description — By using a new pixel design and a novel driving scheme that adds a bias electrode and a bias TFT to the ordinary pixel structure, a high‐contrast‐ratio and wide‐viewing‐angle LCD mode, refered to as the biased vertical‐alignment (BVA) mode, has been sucessfully developed. Compared to the published data on the PVA and MVA modes, the BVA mode has a distinct advantage of lower manufacturing cost due to the elimination of a lithographic process step that forms either ITO cuts or protrusions on the color‐filter substrates. The BVA mode requires ITO cuts on the TFT substrate similar to that for the PVA and MVA modes. The 15‐in. BVA‐mode XGA prototype exhibits a high contrast ratio of 1200:1 and high cell transmittance of 4.3%.
doi_str_mv 10.1889/1.2709735
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subjects liquid-crystal display (LCD)
Vertical alignment (VA)
wide-viewing angle
title A new pixel design and a novel driving scheme for multi-domain vertically aligned LCDs
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