Liquid crystal tropism agent and liquid crystal display element

A technology of liquid crystal display element and liquid crystal aligning agent, which is applied in the direction of liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problems of pretilt angle deviation and display quality degradation, and achieve high pretilt angle, good orientation uniformity, and printing Excellent effect
CN101093320AInactive Publication Date: 2007-12-26JSR CORPORATIOON
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JSR CORPORATIOON
Publication Date
2007-12-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a liquid crystal aligning agent of a liquid crystal aligning film with a high pretilt angel, a good aligning uniformity and a good printing characteristic. A liquid crystal aligning agent comprises an unit including polyamide repeated units and a polymer of imidization repeated units described in the formula (I-2). The ratio of the polyamide repeated units is 60-90% and the imidization repeated units contain 5-100 mol% of specific repeated units such as formula (A), relative to the total quantity of the polyamide repeated units and the imidization repeated units.
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Description

technical field

[0001] This invention relates to the liquid crystal aligning agent used for forming the liquid crystal aligning film of a liquid crystal display element, and the liquid crystal display element which has this liquid crystal aligning film. More specifically, it relates to the ability to exhibit high pretilt angle and orientation uniformity in a wide temperature range, that is, the uniformity of the pretilt angle is good, the printing characteristics are excellent, and it can be used to form TN-type liquid crystal display elements, STN-type liquid crystal display elements, OCB A liquid crystal aligning agent for a liquid crystal aligning film of a liquid crystal display element and a liquid crystal display element having the liquid crystal aligning film. Background technique

[0002] At present, as a liquid crystal display element, a TN type liquid crystal display element having a so-called TN type (Twisted Nematic) liquid crystal cell is known, which forms a li...

Claims

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