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:
Mar. 17, 2015
Filed:
Sep. 07, 2012
Bonyong Koo, Cheonan-si, KR;
Bonyong Koo, Cheonan-si, KR;
Samsung Display Co., Ltd., , KR;
Abstract
A display apparatus includes: a first substrate including display and peripheral area surrounding the display area, where the first substrate includes pixel electrodes in the display area, and dummy pixel electrodes in the peripheral area; a second substrate opposite to and coupled to the first substrate, where the second substrate includes a reference electrode facing the pixel electrodes and facing the dummy pixel electrodes; and a liquid crystal layer between the first substrate and the second substrate, where the first substrate further includes a test line electrically connected to the dummy pixel electrodes, a first pad electrode configured to apply a test voltage to the test line to measure a liquid crystal capacitance, a reference voltage line configured to receive a reference voltage from an external source, and a second pad electrode configured to apply the reference voltage to the reference voltage line to measure the liquid crystal capacitance.