Chinese Optics Letters, 2019, 17 (1): 012301, Published Online: Jan. 17, 2019  

Electrically tunable holographic waveguide display based on holographic polymer dispersed liquid crystal grating Download: 707次

Author Affiliations
1 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
Abstract
In this Letter, we present an electrically tunable holographic waveguide display (HWD) based on two slanted holographic polymer dispersed liquid crystal (HPDLC) gratings. Experimental results show that a see-through effect is obtained in the HWD that both the display light from HWD and the ambient light can be clearly seen simultaneously. By applying an external electric field, the output intensity of the display light can be modulated, which is attributed to the field-induced rotation of the liquid crystal molecules in the two HPDLC gratings. We also show that this electrically tunable performance enables the HWD to adapt to different ambient light conditions. This study provides some ideas towards the development of HWD and its application in augmented reality.

Zhihui Diao, Lingsheng Kong, Junliang Yan, Junda Guo, Xiaofeng Liu, Li Xuan, Lei Yu. Electrically tunable holographic waveguide display based on holographic polymer dispersed liquid crystal grating[J]. Chinese Optics Letters, 2019, 17(1): 012301.

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