DARK FILM LAMINATION FOR A TOUCH SENSOR

摘要

Different lamination methods may be used to create a touch sensor with a darkened side of metalized film facing the user. One lamination method includes laminating a metalized film to an optically clear adhesive (OCA) layer such that an edge of the metalized film including the termination pads remain un-adhered to the OCA layer. Flex-tails may be bonded to the termination pads at a later time by bending up the un-adhered edge. Anisotropic Conductive Film (ACF) may be placed on the termination pads prior to laminating the metalized films. Flex-tails may be placed onto an OCA layer in a location where the termination pads on the metalized film will be located when laminated to the OCA layer. A strip of ACF may be placed on the flex-tail pads. The flex-tails may be bonded to the termination pads of the metalized film prior to the metalized film being laminated.

主权项

1. A touch sensor, comprising:
a touch surface; a first Optically Clear Adhesive (OCA) layer laminated to the touch surface; a row film including row termination pads on a row end that are bonded to flex tails that is laminated to the first OCA layer such that a darkened surface of the row film faces the touch surface; a second Optically Clear Adhesive (OCA) layer laminated to the row film; a column film including column termination pads on a column end bonded to column flex tails that is laminated to the second OCA layer.