Liquid crystal alignment agent, liquid crystal alignment film using the same, and liquid crystal display device including the liquid crystal alignment film

US8969486B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8969486-B2
Application numberUS-201213591614-A
CountryUS
Kind codeB2
Filing dateAug 22, 2012
Priority dateDec 19, 2011
Publication dateMar 3, 2015
Grant dateMar 3, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Disclosed are a liquid crystal alignment agent, a liquid crystal alignment film manufactured using the same, and a liquid crystal display including the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer comprising a polyamic acid including a repeating unit represented by Chemical Formula 1, polyimide including a repeating unit represented by Chemical Formula 2, or a combination thereof: wherein Y 1 and Y 2 are each independently a divalent organic group derived from diamine, wherein the diamine includes photodiamine represented by Chemical Formula 3 and functional diamine represented by Chemical Formula 5: and wherein the other substituents are the same as defined in the detailed description.

First claim

Opening claim text (preview).

What is claimed is: 1. A liquid crystal alignment agent, comprising: a polymer, wherein the polymer includes: polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination of the polyamic acid including a repeating unit represented by the following Chemical Formula 1 and the polyimide including a repeating unit represented by the following Chemic…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8969486B2 cover?
Disclosed are a liquid crystal alignment agent, a liquid crystal alignment film manufactured using the same, and a liquid crystal display including the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer comprising a polyamic acid including a repeating unit represented by Chemical Formula 1, polyimide including a repeating unit represented by Chemical Formula 2,…
Who is the assignee on this patent?
Yang Jae-Deuk, Yoo Yong-Sik, Jo Guk-Pyo, and 1 more
What technology area does this patent fall under?
Primary CPC classification C08L79/08. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 03 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).