Touch panel and method for manufacturing electrode member

Patent metadata

Field	Value
Publication number	US-9955576-B2
Application number	US-201113997098-A
Country	US
Kind code	B2
Filing date	Dec 20, 2011
Priority date	Dec 23, 2010
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

Provided is a touch panel. The touch panel includes a substrate and an electrode member disposed on the substrate. The electrode member includes a base material for electrode having first and second surfaces opposite to each other, a first electrode disposed on the first surface, and a second electrode disposed on the second surface.

First claim

The invention claimed is:

1. A touch panel comprising:
an outermost substrate;
an electrode member disposed on a bottom surface of the outermost substrate and in an available area (AA) in which a position of an input device is detected;
a wire disposed on a dummy area (DA) defined outside the available area (AA);
a scattering prevention film disposed to cover the electrode member and the wire; and
an adhesive layer, a portion of the adhesive layer disposed between the outermost substrate and the electrode member, and the electrode member including a plurality of electrodes;
wherein the electrode member comprises:
a base material having a first surface and a second surface opposite to the first surface;
a first transparent electrode disposed on the first surface; and
a second transparent electrode disposed on the second surface;
wherein the first surface faces the outermost substrate,
wherein the adhesive layer is disposed between the outermost substrate and the first transparent electrode,
wherein the first transparent electrode and the second transparent electrode are disposed on the available area to detect the input device,
wherein a dummy layer is disposed on the dummy area,
wherein the first transparent electrode is in direct contact with the first surface of the base material,
wherein the second transparent electrode is in direct contact with the second surface of the base material,
wherein an outermost portion of the first transparent electrode is disposed between a bottom surface of the dummy layer and the first surface of the base material,
wherein the dummy layer and the first transparent electrode are in direct contact,
wherein the dummy layer is in direct contact with the outermost substrate,
wherein the outermost substrate includes glass,
wherein the scattering prevention film is in direct contact with the second transparent electrode,
wherein the second transparent electrode is connected to the wire,
wherein the base material is formed with at least one of polyethylene terephthalate (PET) film and glass,
wherein the wire is connected to a printed circuit board, and
wherein a thickness of the outermost substrate is greater than a thickness of the base material.

2. The touch panel according to claim 1 , wherein the first transparent electrode is disposed in a first direction, and the second transparent electrode is disposed in a second direction crossing the first direction.

3. The touch panel according to claim 1 , wherein each of the first and second transparent electrodes is formed of at least one selected from the group consisting of indium tin oxide, indium zinc oxide, carbon nano tube (CNT), conductive polymer, and Ag nano wire.

Assignees

• Lee Dong Youl
• Noh Young Jin
• You Young Sun
• Lee Sun Young
• Lee Yong Jin
• Chai Kyoung Hoon
• Lg Innotek Co Ltd

Inventors

• Lee Dong Youl
• Noh Young Jin
• You Young Sun
• Lee Sun Young
• Lee Yong Jin
• Chai Kyoung Hoon

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/046

  by electromagnetic means · CPC title

• B82Y15/00

  Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors · CPC title

• H05K1/09 Primary

  Use of materials for the {conductive, e.g. } metallic pattern · CPC title

• H05K3/10

  in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern · CPC title