Jpn. J. Appl. Phys. 47 (2008) pp. 7920-7925  |Previous Article| |Next Article|  |Table of Contents|
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Controllable-Viewing-Angle Display Using a Hybrid Aligned Nematic Liquid-Crystal Cell

Masaya Adachi

Materials Research Laboratory, Hitachi, Ltd., 7-1-1 Omika, Hitachi, Ibaraki 319-1292, Japan

(Received June 10, 2008; accepted June 14, 2008; published online October 17, 2008)

We have developed a “controllable-viewing-angle (CVA)” device consisting of a hybrid aligned nematic (HAN) liquid-crystal (LC) cell and an negative C-plate. The CVA device can control the transmission of light at predetermined azimuth angles and at the polar angles without changing the transmission of light in the normal direction. By arranging the CVA device on top of a LC panel, we have realized a simple controllable-viewing-angle display. In particular, the CVA device using a HAN LC cell realizes a stronger light-shielding effect and better control over a wider range of viewing angles than possible with a homogeneous aligned LC cell.

DOI: 10.1143/JJAP.47.7920
KEYWORDS:viewing angle, controllable viewing-angle display, hybrid-aligned nematic liquid crystal, negative C-plate

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References | Citing Articles (5)

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  8. M. Adachi and M. Shimura: SID Int. Symp. Dig. Tech. Pap. 37 (2006) 705.

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