Display Device with Touch Panel

Patent metadata

Field	Value
Publication number	US-2016162109-A1
Application number	US-201615008933-A
Country	US
Kind code	A1
Filing date	Jan 28, 2016
Priority date	Apr 22, 2008
Publication date	Jun 9, 2016
Grant date	—

Abstract

A manufacturing method of a touch panel includes the steps of providing a substrate, forming a first conductive film on the substrate, forming a first mask on the first conductive film, etching the first conductive film to form electrode portions and lower intersect portions of the touch panel, forming an insulating film made of a negative resist on the first conductive film, and forming a contact hole above the electrode portion by removing the insulating film. The steps further include forming a second conductive film on the insulating film, forming a second mask on the second conductive film, etching the second conductive film to form an upper intersect portion connected between two adjacent electrode portions via the contact hole and intersecting with the lower intersect portion, and forming protective film on the second conductive film.

First claim

What is claimed is:

1 . A touch panel comprising:
a substrate; a plurality of electrodes formed on the substrate, the plurality of electrodes including a first group of electrodes and a second group of electrodes, each of the first group of electrodes having a contact portion; an insulating film made of a negative resist and formed on the plurality of electrodes; an intersecting electrode formed on the insulating film and intersecting with each of the second group of electrodes; and a protective film formed on the intersecting electrode; wherein each of the first group of electrodes is exposed from the insulating film at the contact portion, and wherein the intersecting electrode is connected to each of the first group of electrodes at the contact portion.

2 . The touch panel according to claim 1 , wherein the plurality of electrodes is made of a transparent conductive material.

3 . The touch panel according to claim 1 , wherein the protective film is made of a positive resist.

4 . The touch panel according to claim 1 , wherein the protective fun is formed on the insulating film.

5 . The touch panel according to claim 1 , wherein the protective film is provided above the contact portion.

6 . A touch panel comprising:
a substrate; an X electrode formed on the substrate, the X electrode having a contact portion; a Y electrode formed on the substrate; an insulating film made of a negative resist on the X electrode and the Y electrode, the insulating film exposing the contact portion; and an intersecting electrode formed on the insulating film, wherein the intersecting electrode is connected to the X electrode at the contact portion and intersects the Y electrode.

7 . The touch panel according to claim 6 , wherein the X electrode and the Y electrode are made of a transparent conductive material.

8 . The touch panel according to claim 6 , further comprising a protective film formed on the intersecting electrode and the insulating film.

9 . The touch panel according to claim 6 , further comprising a protective film formed on the intersecting electrode and made of a positive resist.

10 . The touch panel according to claim 6 , further comprising a protective film provided above the contact portion.

Assignees

• Japan Display Inc
• Panasonic Liquid Crystal Displ

Inventors

• Teramoto Masahiro

Classifications

• H10P70/234

  the processing being the formation of vias or contact holes · CPC title

• H10P50/28

  of insulating materials · CPC title

• H10P50/00

  Etching of wafers, substrates or parts of devices · CPC title

• H10D64/01364

  the semiconductor being diamond, semiconducting diamond-like carbon or graphene · CPC title

• H10D64/0114

  to diamond, semiconducting diamond-like carbon or graphene · CPC title