Semitransparent diffusion-polarization laminate and usage therefor
US-2015362728-A1 · Dec 17, 2015 · US
Polarizing plate and image display device
US9453952B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9453952-B2 |
| Application number | US-201514753513-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2015 |
| Priority date | Jun 30, 2014 |
| Publication date | Sep 27, 2016 |
| Grant date | Sep 27, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A polarizing plate includes an outer protective film and a polarizer. The sum S of the product of the modulus of elasticity and the cube of the thickness in each layer is up to 150,000 Pa·mm 3 , and the value obtained by dividing the sum S by the Knoop hardness k of the outer protective film is 200 or more but up to 450. The polarizing plate is excellent in surface pencil hardness even when its thickness is reduced.
First claim
Opening claim text (preview).
What is claimed is: 1. A polarizing plate comprising: an outer protective film; and a polarizer, wherein a sum S of a product of a modulus of elasticity and a cube of a thickness in each layer is up to 150,000 Pa·mm 3 , and wherein a value obtained by dividing the sum S by a Knoop hardness k of the outer protective film is 200 or more but up to 450. 2. The polarizing plate according to claim 1 , wherein the outer protective film has a thickness of 5 μm-30 μm. 3. The polarizing plate according to claim 1 , wherein the outer protective film has a modulus of elasticity of 2.0 GPa-4.0 GPa. 4. The polarizing plate according to claim 2 , wherein the outer protective film has a modulus of elasticity of 2.0 GPa-4.0 GPa. 5. The polarizing plate according to claim 1 , wherein the outer protective film has a Knoop hardness k of 150 N/mm 2 -300 N/mm 2 . 6. The polarizing plate according to claim 2 , wherein the outer protective film has a Knoop hardness k of 150 N/mm 2 -300 N/mm 2 . 7. The polarizing plate according to claim 3 , wherein the outer protective film has a Knoop hardness k of 150 N/mm 2 -300 N/mm 2 . 8. The polarizing plate according to claim 4 , wherein the outer protective film has a Knoop hardness k of 150 N/mm 2 -300 N/mm 2 . 9. The polarizing plate according to claim 1 , wherein the polarizer has a thickness of 2 μm-18 μm. 10. The polarizing plate according to claim 2 , wherein the polarizer has a thickness of 2 μm-18 μm. 11. The polarizing plate according to claim 3 , wherein the polarizer has a thickness of 2 μm-18 μm. 12. The polarizing plate according to claim 4 , wherein the polarizer has a thickness of 2 μm-18 μm. 13. The polarizing plate according to claim 5 , wherein the polarizer has a thickness of 2 μm-18 μm. 14. The polarizing plate according to claim 6 , wherein the polarizer has a thickness of 2 μm-18 μm. 15. The polarizing plate according to claim 7 , wherein the polarizer has a thickness of 2 μm-18 μm. 16. The polarizing plate according to claim 8 , wherein the polarizer has a thickness of 2 μm-18 μm. 17. The polarizing plate according to claim 1 , wherein the polarizing plate comprises an inner hard coat layer with a thickness of up to 7 μm on a side of the polarizer opposite to a side on which the outer protective film is formed. 18. The polarizing plate according to claim 1 , wherein the polarizing plate comprises an outer hard coat layer with a thickness of up to 7 μm on a side of the outer protective film opposite to a side on which the polarizer is formed. 19. An image display device comprising the polarizing plate according to claim 1 .
Assignees
Inventors
Classifications
- G02B5/305Primary
including organic materials, e.g. polymeric layers · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9453952B2 cover?
- A polarizing plate includes an outer protective film and a polarizer. The sum S of the product of the modulus of elasticity and the cube of the thickness in each layer is up to 150,000 Pa·mm 3 , and the value obtained by dividing the sum S by the Knoop hardness k of the outer protective film is 200 or more but up to 450. The polarizing plate is excellent in surface pencil hardness even when its…
- Who is the assignee on this patent?
- Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification G02B5/305. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 27 2016 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).