journal article·2023-10-02Open access

Diffractive liquid crystal device for privacy window with a low operating voltage

Chan-Hee Han, Tae-Hoon Choi, Wook-Sung Kim, Seung-Won Oh

Journal of Information Display· Volume 24· Issue 4

Abstract

We demonstrate using a diffractive smart window with homogeneous-aligned (HA) liquid crystals (LCs) owing to the large spatial phase difference in all directions in the opaque state. The proposed grating cell had a high haze value (88.57%), which was 1.16 times higher than the previously reported vertically aligned (VA) grating cells because the proposed grating cell had a higher twist angle than what the VA grating cell had. Our proposed HA grating cell can be used in various smart window applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Liquid Crystal Research Advancements · Photonic Crystals and Applications · Advanced Optical Imaging Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical Information Communication Engineering, Kangwon National University, Samcheok, Republic of Korea

Smart Materials R&D Center, Korea Automotive Technology Institute, Cheonan, Korea

Department of Electrical Engineering, POSTECH, Pohang, Republic of Korea

Funding

National Research Foundation of Korea · Korean government · MSIP

References (22)

Show source-provided references
1. 10.1016/j.solmat.2016.09.04510.1016/j.solmat.2016.09.045 ↗
2. 10.1088/1361-6463/ac38e110.1088/1361-6463/ac38e1 ↗
3. Han C.H. · Liq. Crys. · 2022 · 1
4. 10.1063/1.34619010.1063/1.346190 ↗
5. 10.1063/1.178963210.1063/1.1789632 ↗
6. 10.1063/1.491827710.1063/1.4918277 ↗
7. 10.1063/1.9657710.1063/1.96577 ↗
8. 10.1080/02678292.2018.151537310.1080/02678292.2018.1515373 ↗
9. 10.1063/1.10384510.1063/1.103845 ↗
10. 10.1016/j.dyepig.2016.06.04510.1016/j.dyepig.2016.06.045 ↗
11. 10.1016/j.dyepig.2018.12.06810.1016/j.dyepig.2018.12.068 ↗
12. 10.1364/OE.21.02691410.1364/OE.21.026914 ↗
13. 10.1063/1.10676510.1063/1.106765 ↗
14. 10.1063/1.35851810.1063/1.358518 ↗
15. 10.1063/1.144621610.1063/1.1446216 ↗
16. 10.1038/srep3992310.1038/srep39923 ↗
17. 10.1109/TED.2017.270712810.1109/TED.2017.2707128 ↗
18. Chen H. · Sci. Rep. · 2017 · 7 · 110.1038/s41598-016-0028-x ↗
19. 10.1364/OE.25.01127510.1364/OE.25.011275 ↗
20. 10.1080/02678292.2018.144202810.1080/02678292.2018.1442028 ↗
21. 10.1364/AO.58.00431510.1364/AO.58.004315 ↗
22. Han C.-H. · Sci. Rep. · 2022 · 12 · 110.1038/s41598-021-99269-x ↗