IP Library Granted Patent US 8,421,610
Granted Patent B2
US 8,421,610 · App. 12/534,672 · Granted Apr 16, 2013

Touch screen and method of operating the same

Inventors: Seongdeok Ahn (Daejeon, KR); In-Kyu You (Daejeon, KR); Jiyoung Oh (Daejeon, KR); Chul Am Kim (Seoul, KR); Jae Bon Koo (Daejeon, KR); Sang Seok Lee (Daejeon, KR); Kyung Soo Suh (Daejeon, KR); Kyoung Ik Cho (Daejeon, KR)
Assignee: Electronics and Telecommunications Research Institute
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Quick Facts
Patent No.
US 8,421,610
App. No.
12/534,672
Granted
Apr 16, 2013
Kind
B2
Abstract

Provided are a touch screen and a method of operating the same. The touch screen includes a detecting part, a control part, and a tactile feedback part. The detecting part detects object's approach or contact. The control part receives a signal of the detecting part to output a feedback signal. The tactile feedback part receives the feedback signal of the control part to provide a tactile feedback to a contact position using a magnetic force. The tactile feedback uses the magnetic force of a magnetic dipole.

Claims (10)

1. A method, comprising

detecting approach toward or contact with a touch screen of an object;

based on detecting contact with the touch screen, detecting a contact position;

providing a first tactile feedback to the contact position;

determining whether the contact is continuously maintained; and

based on determining that the contact is continuously maintained, providing a second tactile feedback to the contact position;

wherein the tactile feedback is locally provided to a portion of a tactile feedback part corresponding to the contact position using a magnetic force of a magnetic dipole.

2. The method of claim 1 , comprising providing the first tactile feedback as an attractive force.

3. The method of claim 1 , comprising providing a repulsive force as the second tactile feedback.

4. The method of claim 1 , further comprising controlling a display panel corresponding to the contact position.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2009
From: AHN, SEONGDEOK; YOU, IN-KYU; OH, JIYOUNG; KIM, CHUL AM; KOO, JAE BON; LEE, SANG SEOK; SUH, KYUNG SOO; CHO, KYOUNG IK
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 023043/0851 →
Priority Claims (2)
KR 10-2008-0123997 · Dec 8, 2008 · national
KR 10-2009-0023364 · Mar 19, 2009 · national
Continuity (1)
Related Publication 20100141411A1 · Jun 10, 2010