Synthesis and characterization of novel blue azo‐dye derivatives containing acrylate group for dye‐based color filters |
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Authors: | Song Hak Kim Chun Keun Jang Sung Hoon Jeong Jae Yun Jaung |
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Affiliation: | Hanyang University, Department of Fiber and Polymer Engineering, 17 Haengdang‐dong, Seongdong‐gu, Seoul 133791, Korea |
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Abstract: | Abstract— Even though dyes have a fine resolution and good chromaticities, they are not widely used as coloring materials for color filters (CFs) due to their low thermal stability and chemical resistance. A series of azo‐dye derivatives, which consist of two cross‐linkable acrylate or methacrylate groups to improve thermal and chemical properties, have been synthesized and used to fabricate color filters. The spectral properties and chemical/thermal stabilities of the fabricated CFs were investigated by comparing dye‐based CFs, without a complicated dispersion process, but with pigment‐based CFs using dispersed pigment. Also, more properties including the development test and surface morphologies lithographic properties were studied. The synthesized azo dyes were characterized by elemental analysis, UV‐visible spectra, IR, mass, and 1H‐NMR spectra. |
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Keywords: | Blue dyes dye‐based color filters chromaticity negative PR contrast ratio |
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