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    • 2. 发明申请
    • PEN STYLUS ENABLED CAPACITIVE TOUCH SYSTEM AND METHOD
    • 笔式启动电容式触控系统及方法
    • WO2009126183A2
    • 2009-10-15
    • PCT/US2008/082384
    • 2008-11-05
    • SONY ERICSSON MOBILE COMMUNICATIONS ABKLINGHULT, GunnarFUTTER, Paul
    • KLINGHULT, GunnarFUTTER, Paul
    • G06F3/044
    • G06F3/0412G06F3/0414G06F3/044
    • Described is a capacitive touch screen apparatus. An indium tin oxide (ITO) ground screen covers (12) and protects an optical display (16). One or more support structures (18) are secured atop the ground screen layer (12). A first capacitance sensing patterned ITO trace layer (8, 10) is secured atop the support structures (18) such that an air gap (20) exists between the layers. A second capacitance sensing patterned ITO trace layer (4, 6) can be secured atop the first patterned ITO trace layer (8, 10). A pointed object brought into contact with the outermost patterned ITO trace layer (4,6) will deform the surface and penetrate a portion of the air gap (20) sufficiently to register a change in capacitance at the point of contact. A protective transparent film layer (2) covering the outermost patterned ITO trace layer (4,6) can be utilized to protect the surface of the ITO layer (4,6) from damage. The ITO layers (4,6) and (8,10) are electronically coupled with a controller capable of sensing changes in capacitance.
    • 描述的是电容式触摸屏设备。 铟锡氧化物(ITO)接地屏蔽罩(12)并保护光学显示器(16)。 一个或多个支撑结构(18)固定在接地屏幕层(12)的顶部。 第一电容感测图案化ITO迹线层(8,10)被固定在支撑结构(18)上方,使得在层之间存在气隙(20)。 第二电容感测图案化ITO迹线层(4,6)可以固定在第一图案化ITO迹线层(8,10)顶上。 与最外面的图案化ITO迹线层(4,6)接触的尖端物体将使表面变形并充分渗透气隙(20)的一部分以记录接触点处的电容变化。 覆盖最外面的图案化ITO迹线层(4,6)的保护性透明膜层(2)可用于保护ITO层(4,6)的表面免受损坏。 ITO层(4,6)和(8,10)与能够感测电容变化的控制器电连接。