Electronic device

Patent metadata

Field	Value
Publication number	US-12072736-B2
Application number	US-202318368624-A
Country	US
Kind code	B2
Filing date	Sep 15, 2023
Priority date	Mar 13, 2014
Publication date	Aug 27, 2024
Grant date	Aug 27, 2024

Abstract

A structure suitable for a portable information terminal or a wearable device is provided. In addition, an electronic device having a novel structure that can have various forms is provided. It is preferable that a buffer layer which absorbs a difference in the amount of change in form be provided between adjacent film substrates which overlap with each other. As the buffer layer, a gelled resin material, a rubber resin material, a liquid material, an air layer, or the like can be used. Furthermore, an optical film such as a polarizing film or a color filter may be used as the buffer layer. A plurality of buffer layers may be provided in an electronic device.

First claim

The invention claimed is:

1. A display device comprising:
a display panel comprising a display surface to display an image and a back surface opposite to the display surface;
a flexible substrate electrically connected to the display panel;
a protective layer on the back surface side of the display panel; and
a housing,
wherein the display panel comprises a display region comprising a display element and a touch input sensor,
wherein the display region comprises a first region, a second region, and a third region between the first region and the second region,
wherein the third region is configured to be bent so that the first region and the second region overlap each other,
wherein the protective layer and the display panel overlap each other,
wherein the protective layer and the flexible substrate overlap each other,
wherein the flexible substrate is folded from the display surface side of the display panel to the back surface side of the display panel,
wherein a resin is between the protective layer and the flexible substrate,
wherein the resin and the third region overlap each other, and
wherein the resin is between the housing and the display panel.

2. The display device according to claim 1 , wherein the protective layer is more rigid than the display panel.

3. A display device comprising:
a display panel comprising a display surface to display an image and a back surface opposite to the surface;
a flexible substrate electrically connected to the display panel;
a control circuit electrically connected to the display panel via the flexible substrate;
a protective layer on the back surface side of the display panel; and
a housing,
wherein the display panel comprises a display region comprising a display element and a touch input sensor,
wherein the display region comprises a first region, a second region, and a third region between the first region and the second region,
wherein the third region is configured to be bent so that the first region and the second region overlap each other,
wherein the protective layer and the display panel overlap each other,
wherein the protective layer and the flexible substrate overlap each other,
wherein the flexible substrate is folded from the display surface side of the display panel to the back surface side of the display panel,
wherein a resin is between the protective layer and the flexible substrate and between the protective layer and the control circuit,
wherein the resin and the third region overlap each other, and
wherein the resin is between the housing and the display panel.

4. The display device according to claim 2 , wherein the protective layer is more rigid than the display panel.

Assignees

• Semiconductor Energy Lab

Inventors

• Hiroki Masaaki
• Furumatsu Daisuke

Classifications

• G06F1/1652

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G06F1/1635

  Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter · CPC title

• 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

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title