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:
Apr. 09, 2013
Filed:
Jul. 24, 2009
Chen-yu Liu, Taoyuan County, TW;
Ching-yi Wang, Taoyuan County, TW;
Cheng-ping Liu, Taoyuan County, TW;
Lu-hsin LI, Taoyuan County, TW;
Chen-Yu Liu, Taoyuan County, TW;
Ching-Yi Wang, Taoyuan County, TW;
Cheng-Ping Liu, Taoyuan County, TW;
Lu-Hsin Li, Taoyuan County, TW;
TPK Touch Solutions Inc., Taipei, TW;
Abstract
A method of forming double-sided patterns in a touch panel circuit is disclosed. A first conductive layer and a second conductive layer are respectively formed on both sides of a substrate. A blocking layer is formed on a top surface of the first conductive layer for blocking ultraviolet (UV) light. A first photoresist layer is formed on a top surface of the blocking layer, and a second photoresist layer is formed on a bottom surface of the second conductive layer. Accordingly, two sides of the substrate may be exposed, developed and etched at the same time, thereby substantially simplifying the process of manufacturing the touch panel circuit.