公开(公告)号：US20090135579A1

公开(公告)日：2009-05-28

申请号：US12269871

申请日：2008-11-12

申请人： Jong Min KIM ,  Hong Giu CHOI ,  Soo Hyung KIM ,  Jung Hyeong LEE

发明人： Jong Min KIM ,  Hong Giu CHOI ,  Soo Hyung KIM ,  Jung Hyeong LEE

IPC分类号： H05K9/00

CPC分类号： G06F3/0418 ,  G06F3/03547 ,  G06F2203/04107

摘要： A touch pad including an ElectroMagnetic Interference (EMI) shielding plate and method for detecting a touch on the touch pad is provided. The touch pad includes a touch plate for generating, when a touch is generated on a surface of the touch plate, a change of a physical property, a touch sensor coupled to the touch plate for detecting a position of the generated touch by measuring the change of the physical property, and an EMI shielding plate disposed adjacent to or attached to a surface of the touch plate and formed with a plurality of openings. The density of the openings formed at a position of the EMI shielding plate increases as the position becomes farther from the touch sensor. Accordingly, the touch pad having an EMI shielding plate can more accurately detect a touch generated at any position close to or remote from the touch sensor of the touch pad, and thereby increase user convenience of a portable terminal.

摘要翻译： 提供了包括电磁干扰（EMI）屏蔽板和用于检测触摸板上的触摸的方法的触摸板。 触摸板包括触摸板，用于当在触摸板的表面上产生触摸时产生物理特性的变化，触摸传感器，其耦合到触摸板，用于通过测量变化来检测所产生的触摸的位置 的物理特性，以及设置在触摸板的表面附近或附接到触摸板的表面并形成有多个开口的EMI屏蔽板。 形成在EMI屏蔽板的位置处的开口的密度随着位置变得远离触摸传感器而增加。 因此，具有EMI屏蔽板的触摸板可以更精确地检测在靠近或远离触摸板的触摸传感器的任何位置处产生的触摸，从而增加便携式终端的用户便利性。