Protective film of polarizer, polarizer and method for producing it, and liquid crystal display device
US-9040129-B2 · May 26, 2015 · US
Polarizing plate, liquid crystal display device including same, and method for producing polarizing plate
US2016341860A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016341860-A1 |
| Application number | US-201615226462-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 2, 2016 |
| Priority date | Mar 5, 2014 |
| Publication date | Nov 24, 2016 |
| Grant date | — |
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Abstract
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A polarizing plate has at least a polarizer layer including a polyvinyl alcohol film dyed with iodine and includes a compound exhibiting a polyiodide ion I 5 − forming ability in an iodide compound-containing solution.
First claim
Opening claim text (preview).
What is claimed is: 1 . A polarizing plate comprising: at least a polarizer layer including a polyvinyl alcohol film dyed with iodine; and a compound exhibiting a polyiodide ion I 5 − forming ability in an iodide compound-containing solution. 2 . The polarizing plate according to claim 1 , wherein the compound is included in the polarizer layer. 3 . The polarizing plate according to claim 2 , wherein the compound is present at least on a surface of the polarizer layer or in a surface layer region including the surface of the polarizer layer. 4 . The polarizing plate according to claim 1 , wherein the compound includes carbon atoms which are bonded to an electron-withdrawing group through a single bond and not bonded to any other carbon atoms through a double bond. 5 . The polarizing plate according to claim 4 , wherein the compound is an unsaturated fatty acid. 6 . The polarizing plate according to claim 4 , wherein the electron-withdrawing group is a carbonyl group. 7 . The polarizing plate according to claim 6 , wherein the compound is an unsaturated fatty acid. 8 . The polarizing plate according to claim 1 , wherein the compound includes carbon atoms which are bonded to each of two electron-withdrawing groups through a single bond and not bonded to any other carbon atoms through a double bond. 9 . The polarizing plate according to claim 8 , wherein the electron-withdrawing group is a carbonyl group. 10 . The polarizing plate according to claim 4 , wherein the compound includes one or more hetero atoms. 11 . The polarizing plate according to claim 8 , wherein the compound includes one or more hetero atoms. 12 . The polarizing plate according to claim 4 , wherein the compound has a cyclic structure including the carbon atoms. 13 . The polarizing plate according to claim 8 , wherein the compound has a cyclic structure including the carbon atoms. 14 . The polarizing plate according to claim 12 , wherein the cyclic structure is a heterocyclic ring. 15 . The polarizing plate according to claim 13 , wherein the cyclic structure is a heterocyclic ring. 16 . The polarizing plate according to claim 12 , wherein the cyclic structure is a 5-membered or 6-membered ring. 17 . The polarizing plate according to claim 13 , wherein the cyclic structure is a 5-membered or 6-membered ring. 18 . The polarizing plate according to claim 14 , wherein the cyclic structure is a nitrogen-containing heterocyclic ring. 19 . A method for producing the polarizing plate according to claim 1 comprising: a step of forming at least one layer including a compound exhibiting a polyiodide ion I 5 − forming ability in the iodide compound-containing solution. 20 . The method for producing the polarizing plate according to claim 19 , further comprising: at least a dyeing step of dyeing a polyvinyl alcohol film with iodine; and a step of forming a polarizer layer including the compound exhibiting a polyiodide ion I 5 − forming ability in the iodide compound-containing solution by applying the compound to the polyvinyl alcohol film at least before the dyeing step, during the dyeing step, or after the dyeing step. 21 . The method for producing the polarizing plate according to claim 20 , wherein the application of the compound is carried out by coating at least one surface of the polyvinyl alcohol film dyed with iodine with a solution including the compound. 22 . A liquid crystal display device comprising the polarizing plate according to claim 1 .
Assignees
Inventors
Classifications
- G02B5/3033Primary
in the form of a thin sheet or foil, e.g. Polaroid · CPC title
Polarisers · CPC title
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Frequently asked questions
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- What does patent US2016341860A1 cover?
- A polarizing plate has at least a polarizer layer including a polyvinyl alcohol film dyed with iodine and includes a compound exhibiting a polyiodide ion I 5 − forming ability in an iodide compound-containing solution.
- Who is the assignee on this patent?
- Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B5/3033. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).