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Liquid crystal alignment agent, and liquid crystal alignment film and liquid crystal display element formed from the liquid crystal alignment agent
US9150754B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150754-B2 |
| Application number | US-201313920599-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 18, 2013 |
| Priority date | Jul 17, 2012 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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Abstract
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A liquid crystal alignment agent includes a polymer composition obtained by subjecting a diamine component and a tetracarboxylic dianhydride component to a reaction, a solvent, and a hydroxyl compound. Preferably, the hydroxyl compound has a weight average molecular weight ranging from 300 to 1,000,000. A liquid crystal alignment film formed from the liquid crystal alignment agent and a liquid crystal display element including the liquid crystal alignment film are also disclosed.
First claim
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What is claimed is: 1. A liquid crystal alignment agent, comprising: a polymer composition obtained by subjecting a diamine component and a tetracarboxylic dianhydride component to a reaction, a solvent, and a polyoxyethylene having a weight average molecular weight ranging from 4,000 to 1,000,000. 2. The liquid crystal alignment agent as claimed in claim 1 , wherein said weight average molecular weight ranges from 4,000 to 900,000. 3…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9150754B2 cover?
- A liquid crystal alignment agent includes a polymer composition obtained by subjecting a diamine component and a tetracarboxylic dianhydride component to a reaction, a solvent, and a hydroxyl compound. Preferably, the hydroxyl compound has a weight average molecular weight ranging from 300 to 1,000,000. A liquid crystal alignment film formed from the liquid crystal alignment agent and a liquid …
- Who is the assignee on this patent?
- Chi Mei Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D179/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).