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. 15, 2014
Filed:
Feb. 19, 2010
Chen Yi Huang, Taichung, TW;
Te Sheng Tseng, Taichung, TW;
Chao Yang Chen, Taichung, TW;
Largan Precision Co., Ltd., Taichung, TW;
Abstract
This invention provides an apparatus for detecting a touching position on a flat panel display, including a display panel for displaying text and picture information, an electrically-controlled swing element with the angle of swing thereof being controlled by an electrically-driven actuator, a light source with a light beam thereof being reflected onto a display plane of the display panel or an upper or lower plane proximate to the display plane by the electrically-controlled swing element, an optical system with the optical axis thereof being parallel to the display plane, and a photo-sensing element disposed at an image plane of the optical system. A one-dimensional position of a touching point on the display panel is obtained from the photo-sensing element. Another one-dimensional position of the touching point is obtained from the said one-dimensional position and the angle of swing of the electrically-controlled swing element.