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:
Nov. 23, 2010
Filed:
Mar. 27, 2008
Chun-hsiang Wen, Hsinchu, TW;
Wen-hsien Wang, Jiali Township, Tainan County, TW;
Yaw-ting Wu, Pingjhen, TW;
Hui-lung Kuo, Taipei, TW;
Chun-Hsiang Wen, Hsinchu, TW;
Wen-Hsien Wang, Jiali Township, Tainan County, TW;
Yaw-Ting Wu, Pingjhen, TW;
Hui-Lung Kuo, Taipei, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A bi-stable projection screen includes a light diffusion unit and a bi-stable display unit stacked together. The bi-stable display unit, when actuated, selectively operates in a first mode or a second mode. When operating in the first mode (e.g., a transmission mode or a reflection mode), the bi-stable display unit receives a projection light from a front projection or a rear projection, and emits the projection light after modulation. When operating in the second mode (a non-transmission mode or a non-reflection mode), the bi-stable display unit is a pattern to become a part of a scene. The light diffusion unit receives and diffuses the modulated projection light to be perceived by human eyes.