Improvement of dichroic polymer dispersed liquid crystal performance using lift-off technique
2006; American Institute of Physics; Volume: 89; Issue: 18 Linguagem: Inglês
10.1063/1.2372707
ISSN1520-8842
AutoresAkira Masutani, Tony Roberts, Bettina Schüller, Nadine Hollfelder, P. Kilickiran, Gabriele Nelles, A. Yasuda, Akira Sakaigawa,
Tópico(s)Photonic and Optical Devices
ResumoA lift-off method has been developed for the fabrication of polymer dispersed liquid crystal (PDLC) displays. A polymer matrix template can be prefabricated by lifting off a PDLC film from a fluorosilanized antisticking substrate. Desirable liquid crystal can then be backfilled/infiltrated into the template. Applying this technique to fabricate dichroic PDLC yielded a reflectivity of 66% and a contrast ratio of 13.8:1 in 3.8in. quarter video graphics array reflective thin film transistor (TFT) displays. A diffuse layer with melamine-formaldehyde nanoparticles was employed to suppress the metallic glare caused by the reflective back plane. The technique is suitable for various back planes such as flexible, solvent/UV-sensitive, organic TFTs.
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