公开(公告)号：US20140098306A1

公开(公告)日：2014-04-10

申请号：US14043174

申请日：2013-10-01

Applicant: Corning Incorporated

Inventor： JEFFREY STAPLETON KING ,  William Richard Trutna ,  Michael John Yadlowsky

IPC: G02F1/1333

CPC classification number: G02F1/13338 ,  G06F3/042 ,  G06F2203/04109

Abstract: A touch system for sensing a touch event that includes a transparent sheet having opposite upper and lower surfaces and an index of refraction n2. The system also has at least one light source that emits light. The light source is arranged in optical communication with the transparent sheet to cause the light to travel within the transparent sheet by total-internal reflection (TIR). At least one detector is arranged to detect the TIR-traveling light and to detect an amount of attenuation in the TIR-traveling light caused by the touch event. An interface layer is disposed on the lower surface of the transparent sheet. The interface layer has a refractive index n1, wherein n1

Abstract translation: 一种用于感测触摸事件的触摸系统，其包括具有相反的上表面和下表面的透明片材和折射率n2。 该系统还具有至少一个发光的光源。 光源被布置成与透明片光学连通，以通过全内反射（TIR）使光在透明片内行进。 至少一个检测器被布置成检测TIR行进光并且检测由触摸事件引起的TIR行进光中的衰减量。 界面层设置在透明片的下表面上。 界面层具有折射率n1，其中n1