INTERACTIVE DISPLAY SYSTEM
An interactive display system including a touch sensor overlay having at least one sheet with integrated patterned transparent conductors configured to signal touch data. The interactive display system further including a display assembly and an optical layer interposed the touch sensor overlay and the display assembly.
1 . An interactive display system comprising:
a touch sensor overlay including at least one sheet having integrated patterned transparent conductors configured to signal touch data;
a display assembly; and
an optical layer interposed the touch sensor overlay and the display assembly.
2 . The interactive display system of claim 1 wherein the display is one of a liquid crystal display, an organic light emitting diode display, and an electronic paper display.
3 . The interactive display system of claim 1 , wherein at least one sheet of the touch sensor overlay includes a first side and an opposing side, where a first set of conductors is on the first side and a second set of complementary conductors are on the opposing side.
4 . The interactive display system of claim 1 , wherein the conductors are in a grid pattern.
5 . The interactive display system of claim 1 , wherein the touch sensor overlay includes a first sheet with a first set of conductors and a second sheet with a second set of conductors.
6 . The interactive display system of claim 5 , wherein the first sheet is optically bonded with a touch sensor overlay optical adhesive to the second sheet.
7 . The interactive display system of claim 6 , wherein the touch sensor overlay optical adhesive has a refractive index substantially similar to one of the first sheet and the second sheet.
8 . The interactive display system of claim 1 , wherein the at least one sheet is one of a glass sheet and a polymer film sheet.
9 . The interactive display system of claim 1 , wherein the optical layer includes an optical adhesive bonding at least one portion of the display assembly to the touch sensor overlay, where the optical adhesive has a refractive index substantially similar to one of the at least one optical sheet of the touch sensor overlay and to an exterior coupling surface of the display assembly.
10 . The interactive display system of claim 1 , wherein the conductors are indium tin oxide.
11 . The interactive display system of claim 1 , further comprising a circular polarizer coupled to the touch sensor overlay.
12 . The interactive display system of claim 1 , further comprising a quarter wave retarder disposed between the display assembly and the touch sensor overlay.
13 . An interactive display system comprising:
a display assembly;
a transparent capacitive touch sensor overlay with a first sheet with integrated electrodes bonded to a second sheet with an touch sensor overlay optical adhesive where the touch sensor overlay optical adhesive has a refractive index substantially similar to one of the first sheet and the second sheet;
a optical layer interposed the display assembly and the touch sensor overlay; and
at least one signal processing chip electronically coupled to the touch sensor overlay.
14 . The interactive display system of claim 13 , wherein the integrated electrodes is patterned indium tin oxide.
15 . The interactive display system of claim 13 , wherein the first sheet is a glass sheet and the second sheet is a polymer film sheet.
16 . The interactive display system of claim 13 , wherein the second sheet includes a second set of integrated electrodes.
17 . The interactive display system of claim 13 , wherein the optical layer has an index of refraction substantially similar to an exterior surface of the display assembly.
18 . A method for construction of an interactive display system comprising:
integrating a patterned transparent capacitive material on one or more sheets to form a touch sensor overlay; and
bonding the touch sensor overlay to a display assembly.
19 . The method of claim 18 , further comprising, prior to bonding the touch sensor overlay, applying an optical adhesive to one of the touch sensor overlay and the display assembly; and pre-curing the optical adhesive.
20 . The method of claim 18 , wherein integrating a patterned transparent capacitive material including optically bonding a first sheet and a second sheet.
21 . The method of claim 18 , wherein integrating a patterned transparent capacitive material includes layering of conductors of different indices of refraction for anti-reflective purposes.