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:
Sep. 08, 2015
Filed:
Feb. 08, 2013
E Ink Holdings Inc., Hsinchu, TW;
Chi-Ming Wu, Hsinchu, TW;
Shu-Ping Yan, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A test structure of a display panel is provided. The display panel has a display region, a non-display region, and a buffer display region between the display region and non-display region. The test structure is within the buffer display region and includes a substrate, at least one signal line on the substrate, an insulation layer covering the signal line, a planar layer on the insulation layer, and an electrode layer on the planar layer. The planar layer has at least one opening exposing a portion of the insulation layer. The electrode layer has a display electrode portion on the planar layer, at least one test electrode portion connecting the insulation layer via the opening of the planar layer, and a ring-like opening that surrounds the test electrode portion and exposes a portion of the planar layer. The display electrode portion surrounds the ring-like opening and connects the test electrode portion.