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.

Date of Patent:
May. 06, 2014

Filed:

May. 20, 2009
Applicants:

Min-koo Han, Seoul, KR;

Jae-hoon Lee, Seoul, KR;

Hyun-sang Park, Seongnam-si, KR;

Bong-hyun You, Yongin-si, KR;

Byoung-jun Lee, Cheonan-si, KR;

Inventors:

Min-Koo Han, Seoul, KR;

Jae-Hoon Lee, Seoul, KR;

Hyun-Sang Park, Seongnam-si, KR;

Bong-Hyun You, Yongin-si, KR;

Byoung-Jun Lee, Cheonan-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
Abstract

A display device with a touch screen includes: first sensing units, each first sensing unit comprising first optical sensors connected in series, each first sensing unit comprising a first terminal for receiving a first voltage, each first sensing unit extending in a first direction; second sensing units, each second sensing unit comprising second optical sensors connected in series, each second sensing unit comprising a first terminal for receiving a second voltage, each second sensing unit extending in a second direction transverse to the first direction; a reset unit for applying a reset voltage to a second terminal of each of the first and second sensing units; and a read-out unit for sensing a touch position based on voltage changes at the second terminals of the first and second sensing units.


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