Pixel structure, 2D and 3D switchable display device and display driving method thereof
US-9214133-B2 · Dec 15, 2015 · US
Polarization module and image display apparatus
US8947780B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8947780-B2 |
| Application number | US-201213480664-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2012 |
| Priority date | Jun 1, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
Official abstract text for this publication.
A polarization module includes: a polarizer; a plurality of first quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer; a plurality of second quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer in the direction opposite to the tilting direction of the optical axes of the first quarter-wave plates; and a transparent resin plate disposed over the plurality of first quarter-wave plates and the plurality of second quarter-wave plates and having optical isotropy.
First claim
Opening claim text (preview).
What is claimed is: 1. A polarization module comprising: a polarizer; a plurality of first quarter-wave plates disposed on a first side of the polarizer such that their optical axes are tilted at 45 degrees with respect to a polarization axis of the polarizer; a plurality of second quarter-wave plates disposed on the first side of the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer in a direction opposite t…
Assignees
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Classifications
- H04N13/337Primary
Electricity · mapped topic
- G02B30/25Primary
Physics · mapped topic
Electricity · mapped topic
- G02B27/26Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US8947780B2 cover?
- A polarization module includes: a polarizer; a plurality of first quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the polarizer; a plurality of second quarter-wave plates disposed over the polarizer such that their optical axes are tilted at 45 degrees with respect to the polarization axis of the pola…
- Who is the assignee on this patent?
- Matsuyama Norihiro, Horikoshi Ryoko, Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification H04N13/337. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 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).