Input device

Abstract

An input device includes an input section formed of a display sheet and a coordinate input sheet, and a switch section allowing a push-input and placed on a substrate at a place corresponding to a display section of the display sheet. A foamed layer containing air and working as an insulating resin layer is placed between the input section and the substrate. The input section is supported via the foamed layer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a sectional view in part of an input device in accordance with an exemplary embodiment of the present invention.

FIG. 2 shows a sectional view illustrating a push operation at the input device in accordance with the exemplary embodiment.

FIG. 3 shows a plan view of a wiring in a foamed layer which is an essential part of the input device in accordance with the embodiment.

FIG. 4 shows a sectional view of the input device, in accordance with the embodiment, additionally including an EL sheet.

FIG. 5A shows a sectional view of the EL sheet which is an essential part of the input device in accordance with the embodiment.

FIG. 5B shows a sectional view of another EL sheet which is an essential part of the input device in accordance with the embodiment.

FIG. 6 shows a sectional view in part of a conventional input device.

Claims

1. An input device comprising: an input section allowing a coordinate input by using a change in electrostatic capacity in response to a finger movement and a push-input onto a display section on which a mark is shown;a substrate disposed under the input section with a space and having a conductive unit;a push-switch section disposed on the substrate at a place corresponding to the display section; andan insulating resin layer containing air and disposed between the substrate and the input section.

2. The input device of claim 1, wherein the input section is integrated with a coordinate input section, which is placed under an elastic sheet including the display section and produces a change in electrostatic capacity according to a finger movement.

3. The input device of claim 2, wherein the coordinate input section is formed of resin film having a given conductive pattern.

4. The input device of claim 1, wherein the insulating resin layer is formed of a spongy member.

5. The input device of claim 1, wherein the insulating resin layer is formed of a foamed layer made by baking resin paste mixed with a foaming agent.

6. The input device of claim 1, wherein the substrate and the input section are fixed to the insulating resin layer.

7. The input device of claim 1 further comprising: an EL (electro-luminescence) sheet between the substrate and the insulating resin layer.

8. The input device of claim 7, wherein the EL sheet has a shielding layer on its surface facing to the input section.