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:
May. 29, 2012
Filed:
May. 15, 2009
Doo-hwan You, Gwangmeung-si, KR;
Young-je Cho, Cheonan-si, KR;
In-ho Park, Cheonan-si, KR;
Sang-heon Song, Cheonan-si, KR;
Doo-Hwan You, Gwangmeung-si, KR;
Young-Je Cho, Cheonan-si, KR;
In-Ho Park, Cheonan-si, KR;
Sang-Heon Song, Cheonan-si, KR;
Abstract
A touch screen display apparatus includes a first substrate including a pixel electrode and a lower sensor electrode, a second substrate facing the first substrate and including a common electrode and an upper sensor electrode facing the lower sensor electrode, a liquid crystal layer interposed between the substrates, a first alignment layer disposed on the pixel electrode and the common electrode, a second alignment layer disposed on the lower sensor electrode, and a third alignment layer disposed on the upper sensor electrode. The second or third alignment layers aligns the liquid crystal layer in a different direction from a direction the first alignment layer aligns the liquid crystal layer. When pressure is applied onto a point on the first or second substrate, a distance and a capacitance between the lower sensor electrode and the upper sensor electrode at the point are changed to detect a position of the point.