3D image system and 3D glasses
US8922725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Oct 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a 3D image system and 3D glasses. The 3D image system includes a liquid crystal display monitor and the 3D glasses. The liquid crystal display monitor includes a backlight module and a ½λ wave plate. The ½λ wave plate converts lights from by the backlight module into linear polarized lights. The 3D glasses includes a first ¼λ wave plate for receiving and converting the linear polarized lights from the ½λ wave plate into circular polarized lights, a second ¼λ wave plate for converting the circular polarized lights from the first ¼λ wave plate into linear polarized lights, and a second ¼λ wave plate for filtering the linear polarized lights from the second ¼λ wave plate and transmitting the filtered lights to left and right eyes correspondingly. The present invention saves the cost and decreases the maintaining expense.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.