Touch panel

Abstract

A touch panel includes a first substrate, a second substrate, a wiring substrate provided with a plurality of wiring patterns formed thereon, and an anisotropic conductive adhesive layer. The first substrate has a first conductive layer and first electrodes extending from two opposite sides of the first conductive layer. The second substrate has a second conductive layer confronting the first surface with a space, and second electrodes extending from two opposite sides of the second conductive layer. The anisotropic conductive adhesive layer connects a terminal portion of the wiring patterns to at least one of the first electrodes and the second electrodes. The wiring substrate has a slit or an aperture between the wiring patterns at one end thereof. The touch panel of this structure is easy to produce, and provides reliable operation and electrical connection and separation.

Description

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a plan view of a touch panel according to an exemplary embodiment of the present invention.

FIG. 2 is a sectional view of a cross section taken along the line 2-2 of the touch panel shown in FIG. 1.

FIG. 3A is a plan view of a first substrate used for the touch panel shown in FIG. 1.

FIG. 3B is a plan view of a second substrate used for the touch panel shown in FIG. 1.

FIG. 4 is a sectional view of a cross section taken along the line 4-4 of the touch panel shown in FIG. 1.

FIG. 5 is a cutaway view of a main portion of the touch panel shown in FIG. 1.

FIG. 6A is a plan view of a wiring substrate used for the touch panel shown in FIG. 1.

FIG. 6B is a plan view of another mode of the wiring substrate used for the touch panel shown in FIG. 1.

FIG. 7A is a plan view of another mode of the first substrate and the second substrate used for the touch panel of the present invention.

FIG. 7B is a plan view of still another mode of the first substrate and the second substrate used for the touch panel of the present invention.

FIG. 8 is a plan view of a conventional touch panel.

FIG. 9 is a sectional view of a main portion of the conventional touch panel.

Claims

1. A touch panel comprising: a first substrate of optical transparency having: a first surface;a first conductive layer formed at the first surface; andfirst electrodes formed in a manner to extend from two opposite sides of the first conductive layer;a second substrate of optical transparency having: a second surface;a second conductive layer formed at the second surface in a manner to confront the first surface with a space; andsecond electrodes formed in a manner to extend from two opposite sides of the second conductive layer in a direction orthogonal to the two opposite sides of the first conductive layer at which first electrodes formed;a wiring substrate having: a third surface;a fourth surface; anda plurality of wiring patterns formed on at least one of the third surface and the fourth surface; andan anisotropic conductive adhesive layer connecting a terminal portion of the wiring patterns to at least one of the first electrodes and the second electrodes,wherein the wiring substrate is provided with any of a slit and an aperture between the wiring patterns formed at one end thereof.

2. A touch panel comprising: a first substrate of optical transparency having: a first surface;a first conductive layer formed at the first surface; andfirst electrodes formed in a manner to extend from two opposite sides of the first conductive layer;a second substrate of optical transparency having: a second surface;a second conductive layer formed at the second surface in a manner to confront the first surface with a space; andsecond electrodes formed in a manner to extend from two opposite sides of the second conductive layer in a direction orthogonal to the two opposite sides of the first conductive layer at which first electrodes formed;a wiring substrate having: a third surface;a fourth surface; anda plurality of wiring patterns formed on at least one of the third surface and the fourth surface; andan anisotropic conductive adhesive layer connecting the wiring patterns to at least one of the first electrodes and the second electrodes,wherein any of a slit and an aperture is provided between any of the first electrodes and the second electrodes.