ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE, METHOD OF MANUFACTURING ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE, AND ELECTRO-OPTICAL APPARATUS PROVIDED WITH INPUT FUNCTION

• US 20110095770A1
• Filed: 10/20/2010
• Published: 04/28/2011
• Est. Priority Date: 10/27/2009
• Status: Active Grant

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kurashima, Takeshi
• Granted Patent: US 8,698,776 B2
• Time in Patent Office: Days
• US Class Current: 324/679
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: H05K 1/0218 by printed shielding conductors, ground planes or power plane H05K1/0236 takes precedence
• CPC Class Codes: H05K 1/117 Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

An electrostatic capacitance-type input device includes: a translucent input device substrate that has a translucent position detecting electrode and a position detecting mount terminal electrically connected to the position detecting electrode on a first face side; a flexible wiring substrate that includes an overlapping portion overlapping with the first face side of the input device substrate and is electrically connected to the position detecting mount terminal in the overlapping portion; and a translucent shielding film that has a shield electrode layer and is disposed so as to overlap with a second face side of the input device substrate. The shielding film includes an extension portion that is folded back so as to overlap with the first face side of the input device substrate. The shielding film is electrically connected to the flexible wiring substrate through the extension portion.

Claims

1. An electrostatic capacitance-type input device comprising:

a translucent input device substrate that has a translucent position detecting electrode and a position detecting mount terminal electrically connected to the position detecting electrode on a first face side;

a flexible wiring substrate that includes an overlapping portion overlapping with the first face side of the input device substrate and is electrically connected to the position detecting mount terminal in the overlapping portion; and

a translucent shielding film that has a shield electrode layer and is disposed so as to overlap with a second face side of the input device substrate,

wherein the shielding film includes an extension portion that is folded back so as to overlap with the first face side of the input device substrate, and

wherein the shielding film is electrically connected to the flexible wiring substrate through the extension portion.

2. The electrostatic capacitance-type input device according to claim 1,

wherein the shield electrode layer is exposed in the extension portion on the flexible wiring substrate side out of the input device substrate side and the flexible wiring substrate side, and

wherein the flexible wiring substrate overlaps with the extension portion so as to be electrically connected to the shield electrode layer.

3. The electrostatic capacitance-type input device according to claim 2,

wherein the shielding film includes an adhesive layer that bonds the shielding film to the second face side of the input device substrate, and

wherein the extension portion is bonded to the first face side of the input device substrate by the adhesive layer.

4. The electrostatic capacitance-type input device according to claim 2,

wherein the shielding film includes an insulating layer on a side of the shield electrode layer that is opposite to a side on which the input device substrate is positioned, and

wherein, in the extension portion, the shield electrode layer is exposed in an area in which the insulating layer is not formed.

5. The electrostatic capacitance-type input device according to claim 1,

wherein the shield electrode layer is exposed in the extension portion on the input device substrate side out of the input device substrate side and the flexible wiring substrate side, and

wherein the input device substrate includes a shielding mount terminal that is electrically connected to both the shield electrode layer and the flexible wiring substrate.

6. The electrostatic capacitance-type input device according to claim 1,

wherein the shielding film includes extension portions in two places located on both sides pinching an arrangement area of the position detecting mount terminal.

7. A method of manufacturing the electrostatic capacitance-type input device according to claim 1, the method comprising:

pressing the flexible wiring substrate and the extension portion to the input device substrate by a press head in a state in which the flexible wiring substrate and the extension portion are overlapped on the first face side of the input device substrate;

simultaneously performing an electrical connection between the position detecting mount terminal and the flexible wiring substrate and an electrical connection between the shield electrode layer and the flexible wiring substrate in the extension portion; and

interposing an elastic member between the flexible wiring substrate and the extension portion and the press head.

8. An electro-optical apparatus provided with an input function comprising:

a translucent input device substrate that has a translucent position detecting electrode and a position detecting mount terminal electrically connected to the position detecting electrode on a first face side;

a flexible wiring substrate that includes an overlapping portion overlapping with the first face side of the input device substrate and is electrically connected to the position detecting mount terminal in the overlapping portion; and

a translucent shielding film that has a shield electrode layer and is disposed so as to overlap with a second face side of the input device substrate,

wherein the shielding film includes an extension portion that is folded back so as to overlap with the first face side of the input device substrate,

wherein the shielding film is electrically connected to the flexible wiring substrate through the extension portion, and

wherein an electro-optical panel for image generation is configured on a side of the input device substrate that is opposite to the input operation side.