Liquid crystal aligning agent for preparing liquid crystal display element and application thereof

The invention discloses a liquid crystal aligning agent for preparing a liquid crystal display element and application of the liquid crystal aligning agent, the liquid crystal aligning agent at leastcomprises one of a polyimide precursor and an imidization product of the polyimide precursor, and the...

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Hauptverfasser: ZHANG CHENGDONG, CUI MING, WANG ZHONGKAI, XIE WANLONG, REN HUICAI, WANG MINGJIAO
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a liquid crystal aligning agent for preparing a liquid crystal display element and application of the liquid crystal aligning agent, the liquid crystal aligning agent at leastcomprises one of a polyimide precursor and an imidization product of the polyimide precursor, and the polyimide precursor has a structural unit as shown in a formula 1; the liquid crystal alignment film prepared by the liquid crystal aligning agent has the characteristics of high film surface hardness, excellent direct current charge relaxation characteristic and low pre-tilt angle. 本发明公开了一种用于制备液晶显示元件的液晶取向剂及其应用,所述液晶取向剂至少包括聚酰亚胺前体、该聚酰亚胺前体亚胺化产物中的一种,所述聚酰亚胺前体具有如式1所示的结构单元;本发明制备的液晶取向膜具有膜面硬度高、直流电荷缓和特性优异、预倾角低的特点。