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http://dx.doi.org/10.7471/ikeee.2022.26.3.416

A study on liquid crystal-based electrical polarization control technology for polarized image monitoring device  

Ahn, Hyeon-Sik (Department of Electronic Engineering, Hanbat National University)
Lim, Seong-Min (Department of Electronic Engineering, Hanbat National University)
Jang, Eun-Jeong (Department of Electronic Engineering, Hanbat National University)
Choi, Yoonseuk (Department of Electronic Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.26, no.3, 2022 , pp. 416-421 More about this Journal
Abstract
In this study, we present a fully automated system that combines camera technology with liquid crystal technology to create a polarization camera capable of detecting the partial linear polarization of light reflected from an object. The use of twisted nematic (TN) liquid crystals that electro-optically modulate the polarization plane of light eliminates the need to mechanically rotate the polarizing filter in front of the camera lens. Images obtained using these techniques are imaged by computer software. In addition, liquid crystal panels have been produced in a square shape, but many camera lenses are usually round, and lighting or other driving units are installed around the lens, so space is optimized through the application of a circular liquid crystal display. Through the development of this technology, an electrically switchable and space-optimized liquid crystal polarizer is developed.
Keywords
Twisted nematic; Liquid Crystal; Polarization; Camera; Circular;
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