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:
Oct. 16, 2012
Filed:
Jan. 06, 2010
Yung-lung Liu, Taichung Hsien, TW;
Shih-pin Lin, Taichung Hsien, TW;
Yung-Lung Liu, Taichung Hsien, TW;
Shih-Pin Lin, Taichung Hsien, TW;
Sunrex Technology Corp., Taichung, TW;
Abstract
A laptop keyboard in one embodiment includes a rectangular key printing film formed of an optically transmissive material and comprising keys; a rectangular luminescent sheet formed of optically transmissive silicone rubber, the luminescent sheet being mounted below the key printing film; an LED light source disposed to a side of the luminescent sheet; and a capacitive layer mounted below the luminescent sheet and comprising an insulative layer and pairs of upper and lower conductors wherein a pressing of the key changes capacitance of the pair of upper and lower conductors for typing or performing a predetermined command. Light emitted by the LED light source is directed to the luminescent sheet which in turn directs the light upward toward the key printing film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile