Control of the haze value by the electro-hydrodynamic effect in a liquid crystal cell

Tae-Hoon Yoon; Jae-Won Huh; Jin-Hun Kim; Young-Seo Jo; Seong-Min Ji; Tae-Hoon Choi

doi:10.1117/12.2322358

14 September 2018 Control of the haze value by the electro-hydrodynamic effect in a liquid crystal cell

Tae-Hoon Yoon, Jae-Won Huh, Jin-Hun Kim, Young-Seo Jo, Seong-Min Ji, Tae-Hoon Choi

Proceedings Volume 10735, Liquid Crystals XXII; 107350S (2018) https://doi.org/10.1117/12.2322358
Event: SPIE Organic Photonics + Electronics, 2018, San Diego, California, United States

Abstract

Liquid crystal (LC) devices have been used for smart window and see-through display applications. Especially, LC devices which can be used to control the haze value have been studied for smart window applications. LC devices with the polymer structure, such as polymer-dispersed and polymer-stabilized LC cells, can be used to control the haze value. However, for wider applications, it is urgent to overcome disadvantages, such as the high operating voltage, low transmittance in the transparent state, and narrow viewing angle because of the index mismatch between the LC and polymer structure. In this paper, we introduce LC devices based on the electro-hydrodynamic effect. They can provide a high haze in the translucent state because of the turbulence caused by the electro-hydrodynamic effect. They can provide a high transmittance in the transparent state and wide viewing angle because it does not contain any polymer structure. We believe that LC devices based on the electro-hydrodynamic effect can be an excellent candidate for smart window applications.

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Citation Download Citation

Tae-Hoon Yoon, Jae-Won Huh, Jin-Hun Kim, Young-Seo Jo, Seong-Min Ji, and Tae-Hoon Choi "Control of the haze value by the electro-hydrodynamic effect in a liquid crystal cell", Proc. SPIE 10735, Liquid Crystals XXII, 107350S (14 September 2018); https://doi.org/10.1117/12.2322358

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