Studies on Optical Performances of Dichroic Dye‐doped Nematic Liquid Crystal Cell with a Direct Lamination Reflective Polarizer. (17th July 2020)

• Record Type: Journal Article
• Authors: Wu, Xiaojuan; Zhao, Zhiqiang; Wang, Jiaxing; Yuan, Hongliang; Wang, Jian; Yu, Hongjun; Che, Chuncheng; Xue, Hailin
• Is Part Of: Digest of technical papers. Volume 51(2020)Supplement 1
• Page Start: 172
• Page End: 175
• Publication Date: 2020-07-17
• Subjects: Dichroic dye-doped liquid crystal -- direct lamination reflective polarizer -- light shutter -- smart windows; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/sdtp.13782
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract : Optical properties of dichroic dye‐doped nematic liquid crystal (N‐LC) cells with direct lamination reflective polarizer (DLRP) were studied. The dye‐doped N‐LC was switchable between transmitting and absorbing of the light passing through the DLRP. Electro‐optical performances with different cell gap were investigated. It was found that the transmittance decreased and the CR increased with increasing cell gap. When the cell gap was larger than a critical value, the bright transmittance of such cells could be higher than that of two cells with the same LC mixture due to the light enhancement of DLRP. In addition, the dark transmittance was nearly similar to that of double cells with different cell gap thanks to the inherent polarization of DLRP. The results showed that the dye‐doped N‐LC cell with DLRP has a good light tuning performance while thinner thickness of device.