A Viewing Angle Switching Panel Using Guest–Host Liquid Crystal
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概要
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We have numerically and experimentally investigated an optical device based on a guest–host (GH) liquid crystal (LC) for a viewing angle switching (VAS) application. This device should work as an additional panel, mounted on a major panel of conventional liquid crystal display, to implement the VAS operation. Our proposed method employs the composite effect of the GH-LC mixture, which is identified as the combination of the guest-induced absorption effect and the host-induced birefringence effect. The benefit of this composite effect is that the viewing angle can be controlled by not only the transmittance-reduction mechanism but also the contrast-ratio-reduction mechanism. The performance of this VAS panel is first predicted by the analytical calculations, and then confirmed by the experimental results.
- 2009-06-25
著者
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Kim Jae
School Of Chemical Engineering College Of Engineering Seoul National University
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Kim Ki-Han
School of Electrical Engineering, Pusan National University, Busan 609-735, Korea
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Yoon Tae-Hoon
School of Electrical Engineering, Pusan National University, Busan 609-735, Korea
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Kim Ki-Han
School of Electrical Engineering, Pusan National University, Busan 609-735, Republic of Korea
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Chen Chao
School of Electrical Engineering, Pusan National University, Busan 609-735, Republic of Korea
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Yoon Tae-Hoon
School of Electrical Engineering, Pusan National University, Busan 609-735, Republic of Korea
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Yoon Tae-Hoon
School of Electrical Engineering, Engineering, Research Institute of Computer, Information and Communication, Pusan National University, Busan 609-735, Korea
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Kim Jae
School of Chemical and Biological Engineering, Seoul National University, Seoul 151-744, Korea
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