Laminate structure, touch panel, display device with touch panel, and method of manufacturing same

Patent metadata

Field	Value
Publication number	US-2017192574-A1
Application number	US-201715455542-A
Country	US
Kind code	A1
Filing date	Mar 10, 2017
Priority date	Sep 11, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

A laminate structure has a three-dimensional shape and is provided with an optically transparent region. The laminate structure has a transparent conductive member provided with at least one conductive layer constituted of fine metal wires on a flexible transparent substrate, a wiring formed on the transparent substrate and electrically connected to the conductive layer, and a cover member protecting the transparent conductive member. The three-dimensional shape is constituted of at least a planar portion, a side portion bent continuously to the planar portion, and a side portion continued to the protrusion portion and bent with respect to the side portion, out of the planar portion, the side portion, and the protrusion portion, the planar portion and the side portion are constituted of the cover member and the transparent conductive member, and the protrusion portion is constituted of at least the transparent conductive member, and the wiring is routed to at least the protrusion portion and is connected to a flexible wiring member at the tip of the protrusion portion of the transparent conductive member.

First claim

What is claimed is:

1 . A laminate structure which has a three-dimensional shape and includes an optically transparent region, the laminate structure comprising:
a transparent conductive member provided with at least one conductive layer constituted of fine metal wires on a flexible transparent substrate; a wiring formed on the transparent substrate and electrically connected to the conductive layer; and a cover member protecting the transparent conductive member, wherein the three-dimensional shape is constituted of at least a planar portion, a side portion bent continuously to the planar portion, and a protrusion portion continued to the side portion and bent with respect to the side portion, out of the planar portion, the side portion, and the protrusion portion, the planar portion and the side portion are constituted of the cover member and the transparent conductive member, and the protrusion portion is constituted of at least the transparent conductive member, and the wiring is routed to at least the protrusion portion and is connected to a flexible wiring member at the tip of the protrusion portion of the transparent conductive member.

2 . The laminate structure according to claim 1 ,
wherein the protrusion portion is constituted only of the transparent conductive member.

3 . The laminate structure according to claim 1 ,
wherein the protrusion portion is constituted of the cover member and the transparent conductive member.

4 . The laminate structure according to claim 1 ,
wherein the side portions are provided on both sides of the planar portion, and the protrusion portion is provided in one side portion.

5 . The laminate structure according to claim 2 ,
wherein the side portions are provided on both sides of the planar portion, and the protrusion portion is provided in one side portion.

6 . The laminate structure according to claim 1 ,
wherein the protrusion portion faces the planar portion and is provided substantially in parallel with the planar portion.

7 . The laminate structure according to claim 2 ,
wherein the protrusion portion faces the planar portion and is provided substantially in parallel with the planar portion.

8 . The laminate structure according to claim 1 , further comprising:
an optically transparent pressure sensitive adhesive layer between the transparent conductive member and the cover member.

9 . The laminate structure according to claim 1 ,
wherein the wiring member is connected to an external apparatus.

10 . The laminate structure according to claim 1 ,
wherein the transparent conductive member is provided inside the three-dimensional shape with respect to the cover member.

11 . The laminate structure according to claim 1 ,
wherein the conductive layer has a conductive pattern having a mesh structure constituted of the fine metal wires.

12 . The laminate structure according to claim 1 ,
wherein the conductive layers are formed on both surfaces of the transparent substrate.

13 . The laminate structure according to claim 1 ,
wherein the conductive layer is formed on one surface of the transparent substrate, and two transparent substrates on which the conductive layer is formed on one surface are laminated.

14 . A display device comprising:
a touch panel; and a display module, wherein the touch panel includes
a laminate structure which has a three-dimensional shape and includes an optically transparent region,
the laminate structure includes
a transparent conductive member provided with at least one conductive layer constituted of fine metal wires on a flexible transparent substrate,
a wiring formed on the transparent substrate and electrically connected to the conductive layer, and
a cover member protecting the transparent conductive member,
the three-dimensional shape is constituted of at least a planar portion, a side portion bent continuously to the planar portion, and a protrusion portion continued to the side portion and bent with respect to the side portion, out of the planar portion, the side portion, and the protrusion portion, the planar portion and the side portion are constituted of the cover member and the transparent conductive member, and the protrusion portion is constituted of at least the transparent conductive member, the wiring is routed to at least the protrusion portion and is connected to a flexible wiring member at the tip of the protrusion portion of the transparent conductive member, and the display module is housed in a recess portion constituted of the planar portion, the side portion, and the protrusion portion of the laminate structure.

15 . The display device according to claim 14 ,
wherein a projection for positioning the display module is provided in the protrusion portion.

16 . A method of manufacturing a display device with a touch panel having the laminate structure according to claim 1 , the method comprising:
a step of obtaining a laminate structure having a three-dimensional shape constituted of the planar portion, the side portion formed to be bent continuously to the planar portion, and the protrusion portion continued to the side portion and bent with respect to the side portion; and a step of mounting a display module in a recess portion constituted of the planar portion, the side portion, and the protrusion portion.

17 . The method of manufacturing a display device with a touch panel according to claim 16 ,
wherein the protrusion portion is constituted of the transparent conductive member or the cover member and the transparent conductive member.

18 . The method of manufacturing a display device with a touch panel according to claim 16 ,
wherein the display module is mounted while sliding with respect to the recess portion.

19 . The method of manufacturing a display device with a touch panel according to claim 17 ,
wherein the display module is mounted while sliding with respect to the recess portion.

Assignees

• Fujifilm Corp

Inventors

• Koike Takashi
• Kobayashi Hiroyuki

Classifications

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F2203/04112

  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 title

• G06F2203/04103

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

• G06F3/047

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title