公开(公告)号：WO2011053497A1

公开(公告)日：2011-05-05

申请号：PCT/US2010/053443

申请日：2010-10-20

Applicant: APPLE INC. ,  CHOI, Shin, John ,  CLAYTON, Joseph, Edward ,  TANG, Patrick, Jee Phone

Inventor： CHOI, Shin, John ,  CLAYTON, Joseph, Edward ,  TANG, Patrick, Jee Phone

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: A touch sensitive device having a dielectric layer between a cover layer and a touch sensor layer is disclosed. The dielectric layer can reduce a negative pixel effect associated with poor grounding of an object touching the device. The dielectric layer can reduce a capacitance per unit area of the device to less than about 0.0305 picofarads per square millimeter, thereby reducing the negative pixel effect. The dielectric layer can have a thickness of about 0.50 millimeters or more and/or a dielectric constant of about 2.3 or less to reduce the negative pixel effect.

Abstract translation: 公开了一种在覆盖层和触摸传感器层之间具有介电层的触敏装置。 电介质层可以减少与接触设备的物体接地不良相关的负像素效应。 电介质层可以将器件的每单位面积的电容降低到每平方毫米约0.0305皮法，从而减少负像素效应。 电介质层可以具有约0.50毫米或更大的厚度和/或约2.3或更小的介电常数，以减少负像素效应。