Halide Melik, Mehriban Emek, Süleyman Yılmaz

Molecular Alignment on Polymide Film for Liquid Crystals by the Application of Photolithography

In this study, the photolithographic technique for molecular alignment on the polyimide thin film was studied. The liquid crystal alignment properties of the photolithographic application were presented by the polyimide thin films and observed on photoaligned polyimide film by a surface profiler. This method was provided by the micropatterning process that includes spin-coating, UV exposing and wet chemical etching. The cell gap of liquid crystal displays was measured by the rotational scanning interferometer unit. The results of the photolithographic method and the molecular alignment properties of the nematic liquid crystal cell were observed by applying an electric field with the micro-patterning interval of approximately 100 microns. These results will be developed gradually in further studies for nano-scale applications.

Keywords:

Liquid crystals polyimide thin films, photolithography, molecular alignment,

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