Patent ID: 11885999
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 13:
14. A display system for sensing a finger of a user applied to the display system, the display system comprising:
a display panel configured to generate an image for viewing by the user;
a lightguide for providing illumination to the display panel;
the optical construction of claim 1 disposed between the display panel and the lightguide, the first structured major surface disposed between the display panel and the plurality of polymeric layers;
a sensor for sensing the finger of the user disposed proximate the lightguide opposite the reflective polarizer; and
an infrared light source configured to emit an infrared light toward the finger of the user, the sensor configured to receive at least a portion of the infrared light reflected by the finger.