Backlighting appliance deadfronted user interfaces

    公开(公告)号:US09871515B2

    公开(公告)日:2018-01-16

    申请号:US15457303

    申请日:2017-03-13

    IPC分类号: G06F3/041 H03K17/96

    摘要: A capacitive touch switch is disclosed which includes a transparent insulating panel, a filtering layer having an opaque color, a transparent icon being defined in the filtering layer, a transparent substrate including a capacitive electrode, the transparent substrate being tinted to substantially match the opaque color of the filtering layer, and a light source configured to transmit light through the transparent substrate, the transparent icon, and the transparent insulating panel when energized. A user interface and a method of manufacturing a capacitive touch switch are also disclosed.

    Use of relative permittivity in different materials to enhance capacitive switch sensitivity

    公开(公告)号:US09608629B2

    公开(公告)日:2017-03-28

    申请号:US14780991

    申请日:2014-03-17

    申请人: DENSO CORPORATION

    IPC分类号: H03K17/975 H03K17/96

    摘要: In the present invention, a capacitance-type switch is provided with an operation plate and an electrode plate. The operation plate forms operation surfaces operated by the touch of a fingertip F (operation body) of a user. The electrode plate is disposed on the side of the operation plate opposite the operation surfaces. Furthermore, the capacitance-type switch is turned on and off in response to the change in capacitance caused between the fingertip F and the electrode plate. In addition, a high-permittivity material is disposed in an outer circumferential section of the electrode plate, the high-permittivity material having a higher permittivity than the operation plate. It is possible to improve the sensitivity of the capacitance-type switch while minimizing malfunctioning.