The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2013
Filed:
Apr. 13, 2011
Wei-liang Hsu, Taipei, TW;
Chao-hsu Tsai, Hsinchu, TW;
Chang-ying Chen, Kaohsiung, TW;
Jinn-cherng Yang, Yilan County, TW;
Wei-Liang Hsu, Taipei, TW;
Chao-Hsu Tsai, Hsinchu, TW;
Chang-Ying Chen, Kaohsiung, TW;
Jinn-Cherng Yang, Yilan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A projection autostereoscopic display including an image projector and a stereo screen is provided. The image projector projects an image. The image includes multiple viewing-zone images. The stereo screen receives the image and reflects the image to an observing direction. The stereo screen includes a linear polarizer layer, for receiving and polarizing the image. A first microretarder layer is disposed behind the linear polarizer layer. A second microretarder layer is disposed behind the first microretarder layer by a distance. A reflection-type polarization-reserved diffuser layer is disposed behind the second microretarder layer for reflecting and diffusing the image into various directions while maintaining the polarization state of the image. A switching layer is switched between a transparent state which maintains the polarization state of the image and an opaque state which changes the polarization states of the image to a non-polarization state, to switch between 2D and 3D display modes.