INPUT DEVICE

• US 20150331531A1
• Filed: 07/23/2015
• Published: 11/19/2015
• Est. Priority Date: 03/25/2013
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: AOYAMA, Toshiyuki, INOUE, Shuji, INOUE, Manabu, KASAHARA, Shigeo, KADO, Hiroyuki, KOSUGI, Naoki, TAKAGI, Kazushige, TOKAI, Akira, NAKAYAMA, Takahito
• Application Number:
  US14/806,695
• Publication Number:
  US 20150331531A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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: G06F 3/046 by electromagnetic means

Abstract

An input device according to the technology disclosed herein is one which is disposed on a user side of a display device, and includes a pair of coordinate detection electrodes that are disposed to face each other via a dielectric element. One of the pair of the coordinate detection electrodes is disposed on flexible film bonded on a surface on the user side of the display device. Electrodes of the display device serve as the other of the pair of the coordinate detection electrodes. Flexible film includes an extension part which extends from a detection region where the one of the coordinate detection electrodes is disposed. The extension part includes wiring parts which electrically couple to the coordinate detection electrodes and electrically and mechanically couple to connection parts that are disposed on the display device.

Claims

1. An input device disposed on a display device, the input device comprising a pair of coordinate detection electrodes disposed to face each other via a dielectric element,

wherein,

one of the pair of the coordinate detection electrodes is disposed on a flexible film,

electrodes of the display device serve as the other of the pair of the coordinate detection electrodes,

the flexible film includes an extension part extending from a detection region where the one of the coordinate detection electrodes is disposed, and

the extension part includes wiring parts which electrically couple to the coordinate detection electrodes and electrically and mechanically couple to a connection part disposed in the display device.

2. The input device according to claim 1, wherein the flexible film has a polarizing function.

3. The input device according to claim 1, wherein the one of the pair of the coordinate detection electrodes is formed on a surface on the user side of the flexible film.

4. The input device according to claim 1, further comprising a light-transmissive substrate bonded on a surface on the user side of the flexible film via an adhesive layer,

wherein the dielectric element is formed of constituent material of the display device.

5. The input device according to claim 1,

wherein the one of the pair of the coordinate detection electrodes is formed on a surface on a display device side of the flexible film,

the flexible film is bonded on the surface of the user side of the display device via an adhesive layer, and

the dielectric element is formed of constituent material of the display device.