Patent ID: 11914819
Assignee: FLATFROG LABORATORIES AB
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch sensing apparatus comprising:
a display panel;
a plate including a top surface that comprises a touch surface;
an optical emitter configured to emit light across the touch surface of the plate;
one or more detectors arranged adjacent to the periphery of the plate and configured to receive light from the optical emitter; and
a frame assembly, the frame assembly comprising:
a first frame element configured to support the display panel; and
a second frame element arranged around the periphery of the plate and configured to support the plate,
wherein the second frame element includes a first surface portion extending over an edge portion of the plate and a second surface portion arranged substantially parallel to a surface of the plate that defines a thickness of the plate,
wherein a curvature is induced in the plate when the plate is assembled with the frame assembly, such that the plate is curved along a first axis substantially parallel to a propagation direction of the emitted light across the touch surface and curved along a second axis substantially perpendicular to the first axis and in the same plane as the first axis, and
wherein a diagonal dimension of the assembled plate is at least 55 inches.