Touch screen having spacer dots with channels

Details Touch screen having spacer dots with channels Touch screen having spacer dots with channels

2007-01-16

2007-01-16

Loney, Donald J. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

C428S166000, C349S157000, C345S173000, C257S059000, C257S072000, C200S512000

Reexamination Certificate

active

10988234

ABSTRACT:
A touch screen comprising: a) a substrate; b) a first conductive layer located on the substrate; c) a flexible cover sheet comprising a substantially planar surface and integral compressible spacer dots formed thereon, each integral compressible spacer dot having a base closest to the substantially planar surface and a peak furthest from the substantially planar surface; and d) a second conductive layer located on the substantially planar surface of the flexible sheet, the peaks of the integral compressible spacer dots extending beyond the second conductive layer located on the substantially planar surface; wherein the first and second conductive layers are positioned towards each other and separated by the integral compressible spacer dots. A channel is formed in the substantially planar surface of the flexible sheet around each integral compressible spacer dot, and the second conductive layer is electrically isolated from any conductive layer material deposited on the peaks of the spacer dots while depositing the conductive layer material on the substantially planar surface.

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