Touch Panel

Patent metadata

Field	Value
Publication number	US-2016070396-A1
Application number	US-201514845904-A
Country	US
Kind code	A1
Filing date	Sep 4, 2015
Priority date	Sep 5, 2014
Publication date	Mar 10, 2016
Grant date	—

Abstract

A touch panel which includes: a first electrode substrate; a second electrode substrate; a plurality of X-direction transparent electrodes formed on a main surface of the first electrode substrate; a plurality of Y-direction transparent electrodes formed on a main surface of the second electrode substrate; a plurality of X-direction drawn-round wires directly connected to transparent electrodes that are connected to the plurality of X-direction transparent electrodes; a plurality of X-direction drawn-round wires directly connected to external connections that are connected by the plurality of X-direction drawn-round wires directly connected to transparent electrodes and a plurality of through-holes; and a plurality of Y-direction drawn-round wires connected to the plurality of Y-direction transparent electrodes.

First claim

What is claimed is:

1 . A touch panel comprising:
a first electrode substrate; a second electrode substrate; a plurality of first transparent electrodes formed on at least one main surface of the first electrode substrate; a plurality of second transparent electrodes formed on a main surface of the second electrode substrate;
a plurality of first drawn-round wires, a first group of the first drawn-round wires being directly connected to a first group of the first transparent electrodes such that the first group of the first drawn-round wires are used for external connection, and a second group of the first drawn-round wires being directly connected to a second group of the first transparent electrodes and a plurality of through-holes; and
a plurality of second drawn-round wires connected to the plurality of second transparent electrodes.

2 . The touch panel according to claim 1 , wherein
the plurality of second drawn-round wires comprise a first group of the second drawn-round wires directly connected to a first group of the second transparent electrodes; and a second group of the second drawn-round wires directly connected to external connections and to the plurality of through-holes.

3 . The touch panel according to claim 1 , further comprising:
an adhesive layer for joining the first and second electrode substrates, such that the plurality of through-holes penetrate the adhesive layer, wherein the first electrode substrate includes a main surface on which the first group of the first drawn-round wires are formed, and the second electrode substrate includes a main surface on which the second group of the first drawn-round wires are formed.

4 . The touch panel according to claim 1 , further comprising:
an adhesive layer for joining the first and second electrode substrates, wherein the first electrode substrate includes a first main surface on which the first group of the first drawn-round wires are formed and a second main surface on which the second group of the first drawn-round wires are formed, and the plurality of through-holes penetrate the first electrode substrate.

5 . The touch panel according to claim 1 , further comprising:
an adhesive layer for joining the first and second electrode substrates, wherein the first electrode substrate includes a main surface on which the first group of the first drawn-round wires are formed, the second electrode substrate includes a main surface on which the second group of the first drawn-round wires are formed, and the plurality of through-holes penetrate the first electrode substrate, the adhesive layer, and the second electrode substrate.

6 . The touch panel according to claim 1 , further comprising:
an adhesive layer for joining the first and second electrode substrates, wherein the first electrode substrate includes a main surface on which the first group of the first drawn-round wires are formed, the second electrode substrate includes a main surface on which the second group of the first drawn-round wires are formed, and the plurality of through-holes penetrate the first electrode substrate and the adhesive layer.

7 . The touch panel according to claim 1 , further comprising:
a cover film having a main surface; a first adhesive layer for joining the cover film and the first electrode substrate; and a second adhesive layer for joining the first and second electrode substrates, wherein the first electrode substrate includes a main surface on which the first group of the first drawn-round wires are formed, the cover film includes a main surface on which the second group of the first drawn-round wires are formed, and the plurality of through-holes penetrate the first adhesive layer.

8 . A touch panel comprising:
an electrode substrate having two main surfaces including a first main surface and a second main surface; a plurality of first transparent electrodes formed on the first main surface of the electrode substrate; a plurality of second transparent electrodes formed on the second main surface of the electrode substrate; a plurality of first drawn-round wires, a first group of the first drawn-round wires being directly connected to a first group of the first transparent electrodes such that the first group of the first drawn-round wires are used for external connection, and a second group of the first drawn-round wires being directly connected to a second group of the first transparent electrodes and a plurality of through-holes; and a plurality of second drawn-round wires connected to the plurality of second transparent electrodes.

9 . The touch panel according to claim 8 , wherein
the plurality of second drawn-round wires comprise a plurality of second drawn-round wires, a first group of the second drawn-round wires being directly connected to a first group of the second transparent electrodes, and a second group of the second drawn-round wires being directly connected to a second group of the second transparent electrodes and a plurality of through-holes.

10 . The touch panel according to claim 8 , wherein:
the first group of the first drawn-round wires are formed on the first main surface of the electrode substrate, the second group of the first drawn-round wires are formed on the second main surface of the electrode substrate, and the plurality of through-holes penetrate the electrode substrate.

11 . The touch panel according to claim 8 , further comprising:
a cover film having a main surface; and an adhesive layer for joining the cover film and the electrode substrate, wherein the first group of the first drawn-round wires are formed on the first main surface of the electrode substrate, the second group of the first drawn-round wires are formed on the main surface of the cover film, and the plurality of through-holes penetrate the adhesive layer.

12 . A touch panel comprising:
an electrode substrate; a plurality of first transparent electrodes formed on at least one main surface of the electrode substrate; a plurality of second transparent electrodes formed on the main surface of the electrode substrate; a plurality of first drawn-round wires, a first group of the first drawn-round wires being directly connected to a first group of the first transparent electrodes such that the first group of the first drawn-round wires are used for external connection, and a second group of the first drawn-round wires being directly connected to a second group of the first transparent electrodes and a plurality of through-holes; and a plurality of second drawn-round wires connected to the plurality of second transparent electrodes.

13 . The touch panel according to claim 12 , wherein
the plurality of second drawn-round wires comprise a plurality of second drawn-round wires, a first group of the second drawn-round wires being directly connected to a first group of the second transparent electrodes, and a second group of the second drawn-round wires being directly connected to the second group of the first transparent electrodes and a plurality of through-holes.

14 . The touch panel according to claim 12 , further comprising:
a cover film having a main surface; and an adhesive layer for joining the cover film and the electrode substrate, the first group of the first drawn-round wires are formed on the main surface of the electrode substrate, the second group of the first drawn-round wires are formed on the main surface of the cover film, and the plurality of through-holes penetrate the adhesive layer.

Assignees

• Gunze Kk

Inventors

• Horade Naoki
• Okuno Jiro

Classifications

• G06F2203/04111

  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 title

• G09G3/36

  using liquid crystals · CPC title

• G06F3/047 Primary

  using sets of wires, e.g. crossed wires · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G06F3/044

  by capacitive means · CPC title