Synthesis of new vulcan-shape aromatic polyimides for IPS-mode and their alignment properties

KC Son, DJ Park, YB Kim, JC Park

Index: Son, Kyung-Chul; Park, Dong-Ju; Kim, Yong-Bae; Park, Jae-Cheol Molecular Crystals and Liquid Crystals, 2007 , vol. 479, # 1 p. 81 - 93

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Abstract

In plane switching (IPS)-mode liquid crystal display (LCD) is one of the most useful technologies for a wide range of viewing angles. For IPS-mode application, we synthesized novel diamine containing a methyl group as a bridge and homogeneous alignment materials. A 1∼ 2 low pretilt angle manifested by changing dianhydrides (BTDA and BPDA) and bridged diamines (ODA and PACM). We measured their pretilt angles using the ...