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Synthesis of Fluorene-containing Photosensitive Polymer and Its Application to the Carbon Black-based Photoresist for LCD Color-Filter  

Kim, Joo-Sung (Department of Polymer Science and Engineering, Sungkyunkwan University)
Park, Kyung-Je (Department of Polymer Science and Engineering, Sungkyunkwan University)
Lee, Dong-Guen (Department of Polymer Science and Engineering, Sungkyunkwan University)
Bae, Jin-Young (Department of Polymer Science and Engineering, Sungkyunkwan University)
Publication Information
Polymer(Korea) / v.35, no.1, 2011 , pp. 87-93 More about this Journal
Abstract
We developed a fluorene-containing multifunctional binder polymer for LCD color filter resist, and employing the binder polymer, carbon black based black photoresist (CBR) was prepared in order to apply it to the black matrix (BM). To obtain the multifunction of the binder polymer, we synthesized bisphenol fluorene epoxy acrylate-containing unsaturated polyester and identified the binder polymer structure with $^1H$ NMR, GPC and FTIR. The corresponding BFEA-polyester binder polymer was compared with the commercially available acryl binder toward the application to the CBR. From the BM lithography test, we found that the synthesized BFEA-polyester binder had better photocrosslinking capability and alkali solubility. In addition, the newly developed binder gave a good process margin, good resolution and adhesion property on a glass substrate.
Keywords
multifunctional binder; carbon black photoresist; black matrix; color filter;
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