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:
Feb. 26, 2013
Filed:
Dec. 30, 2009
Hung-lieh HU, Hsinchu County, TW;
Chun-hsing Lee, Hsinchu, TW;
Jen-hao Yeh, Taipei, TW;
Sheng-ho Huang, Kaohsiung County, TW;
Yuan-ching Chen, Kaohsiung County, TW;
Yu-ming Huang, Tainan County, TW;
Hung-Lieh Hu, Hsinchu County, TW;
Chun-Hsing Lee, Hsinchu, TW;
Jen-Hao Yeh, Taipei, TW;
Sheng-Ho Huang, Kaohsiung County, TW;
Yuan-Ching Chen, Kaohsiung County, TW;
Yu-Ming Huang, Tainan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An optical interactive panel includes a cladding layer, a first waveguide array, a second waveguide array, a first set of image sensor, and a second set of image sensor. The cladding layer has a first index of refraction. The first waveguide array has first waveguide channels formed on the cladding layer, wherein the first waveguide channels have a second index of refraction less than the first index of refraction, and extending at a first direction. The second waveguide array has second waveguide channels, formed on the cladding layer and extending at a second direction. The first set of image sensor detects a first set of light signals from the first waveguide channels to determine a first-direction location. The second set of image sensor detects a second set of light signals from the second waveguide channels to determine a second-direction location.