Display module

Patent metadata

Field	Value
Publication number	US-9735221-B2
Application number	US-201615006481-A
Country	US
Kind code	B2
Filing date	Jan 26, 2016
Priority date	Jan 28, 2015
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

The display module includes first and second FPC substrates disposed on top of each other. The first substrate has an IC mounted on it. The second FPC substrate has a cutout inside which the IC is disposed.

First claim

What is claimed is:

1. A display module comprising:
a first circuit substrate being flexible, having a display area provided with an image display function, and having a first peripheral area outside the display area;
a second circuit substrate being flexible, having an additional function area provided with a function added to the image display function, and having a second peripheral area outside the additional function area, the second circuit substrate being disposed on top of the first circuit substrate;
a first flexible wiring substrate joined to a first edge of the first peripheral area so as to be electrically coupled to the first circuit substrate;
a second flexible wiring substrate disposed on top of the first flexible wiring substrate, and joined to a second edge of the second peripheral area so as to be electrically coupled to the second circuit substrate; and
an electronic component, wherein
the first circuit substrate has a first curved portion in the first peripheral area,
the first flexible wiring substrate extends toward an opposite side of the first circuit substrate from the second circuit substrate,
the second circuit substrate has a second curved portion in the second peripheral area,
the second flexible wiring substrate extends toward an opposite side of the first circuit substrate from the second circuit substrate,
one of the first and second flexible wiring substrates has the electronic component mounted thereon, and
the other of the first and second flexible wiring substrates has a cutout inside which the electronic component is disposed.

2. The display module according to claim 1 , wherein
the first flexible wiring substrate is curved in a direction of curvature of the first curved portion, and
the second flexible wiring substrate is curved in a direction of curvature of the second curved portion.

3. The display module according to claim 1 , wherein
the first curved portion is formed at least at the first edge, and
the second curved portion is formed at least at the second edge.

4. The display module according to claim 1 , wherein
the first circuit substrate has the first curved portion between the display area and the first edge, and
the second circuit substrate has the second curved portion between the additional function area and the second edge.

5. The display module according to claim 2 , wherein
the first and second flexible wiring substrates are curved by elastic deformation, and
the electronic component and the cutout are engaged to resist a restoring force produced by the elastic deformation.

6. The display module according to claim 1 , wherein
the first and second circuit substrates are curved by elastic deformation, and
the electronic component and the cutout are engaged to resist a restoring force produced by the elastic deformation of the first and second circuit substrates.

Assignees

• Japan Display Inc

Inventors

• FUKUMA Toshihiko
• Oku Norio

Classifications

• H05K2201/09063

  Holes or slots in insulating substrate not used for electrical connections · CPC title

• H05K2201/041

  Stacked PCBs, i.e. having neither an empty space nor mounted components in between · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G02F1/133305

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title