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Optical functional film, and method for manufacturing liquid crystal display device using same
US8936692B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936692-B2 |
| Application number | US-201113813286-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 23, 2011 |
| Priority date | Sep 1, 2010 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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- Title
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Abstract
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Provided is an optical functional film in which air bubbles can be effectively prevented from forming during lamination, and preferably in which a carrier film does not tear readily. Also provided is a method for manufacturing a liquid crystal display device using this optical functional film. A belt-shaped optical functional film is used in order to cut away the optical functional film at predetermined intervals from the belt-shaped optical functional film to which a carrier film is bonded, with the carrier film remaining uncut; to subsequently turn over the carrier film by an edge-shaped member and peel away the optical functional film; and to laminate the exposed surface of the optical functional film to a sheet member while the optical functional film is being peeled away, wherein the optical functional film is characterized in that the flexural rigidity of the carrier film per unit length in the longitudinal direction is from 5.0×10 −5 N·mm 2 to 8.0×10 −2 N·mm 2 , and the longitudinal modulus in the longitudinal direction is from 3000 MPa to 5000 MPa.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing a liquid crystal display device, comprising the steps of: cutting a belt-shaped optical functional film at a predetermined interval while leaving a carrier film uncut, wherein the carrier film adheres to the belt-shaped optical functional film via a pressure-sensitive adhesive layer; peeling off a cut piece of the optical functional film from the carrier film by turning the direction of feeding of the carrier film by means…
Assignees
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Classifications
- B32B37/003Primary
Operations & Transport · mapped topic
- B32B7/06Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US8936692B2 cover?
- Provided is an optical functional film in which air bubbles can be effectively prevented from forming during lamination, and preferably in which a carrier film does not tear readily. Also provided is a method for manufacturing a liquid crystal display device using this optical functional film. A belt-shaped optical functional film is used in order to cut away the optical functional film at pred…
- Who is the assignee on this patent?
- Hirata Satoshi, Kitada Kazuo, Yura Tomokazu, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B32B37/003. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 20 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).