Electronic book

Patent metadata

Field	Value
Publication number	US-10915145-B2
Application number	US-201816002303-A
Country	US
Kind code	B2
Filing date	Jun 7, 2018
Priority date	May 2, 2009
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

An e-book reader in which destruction of a driver circuit at the time when a flexible panel is handled is inhibited. In addition, an e-book reader having a simplified structure. A plurality of flexible display panels each including a display portion in which display control is performed by a scan line driver circuit and a signal line driver circuit, and a binding portion fastening the plurality of display panels together are included. The signal line driver circuit is provided inside the binding portion, and the scan line driver circuit is provided at the edge of the display panel in a direction perpendicular to the binding portion.

First claim

What is claimed is:

1. A display device comprising:
a first display panel having flexibility comprising a first display portion and a second display portion provided on a rear side of the first display panel;
a second display panel having flexibility;
a binding portion provided at an edge of the first display panel and an edge of the second display panel, wherein the binding portion has a hollow; and
a signal line driver circuit provided inside the binding portion,
wherein:
the second display panel includes a first resin layer. a second resin layer, a scan line driver circuit, a first plate, a second plate, and a third plate.
the scan line driver circuit includes a region between the first resin layer and the second resin layer,
the first plate includes a region overlapping the scan line driver circuit with the first resin layer therebetween,
the third plate includes a region overlapping the scan line driver circuit with the second resin layer therebetween,
the first plate and the second plate are on a same plane side of the first resin layer,
the first plate and the second plate are apart from each other,
the first plate includes a region overlapping the third plate,
the first resin layer includes a first region overlapping the first plate, a second region overlapping the second plate, and a third region between the first region and the second region,
the first plate and the second plate are attached to the first resin layer,
the first resin layer is configured to be bent in the third region, and
the scan line driver circuit does not overlap the third region.

2. The display device according to claim 1 , comprising:
a flexible printed circuit inside the binding portion; and
an integrated circuit chip comprising the signal line driver circuit on the flexible printed circuit and inside the binding portion.

3. The display device according to claim 1 , comprising:
an integrated circuit chip comprising the signal line driver circuit on the first display panel and inside the binding portion.

4. The display device according to claim 1 , comprising:
a printed board inside and attached to the binding portion; and
an integrated circuit chip comprising the signal line driver circuit on the printed board and inside the binding portion.

5. The display device according to claim 1 , comprising:
a third display panel having flexibility,
wherein the binding portion is provided at an edge of the third display panel.

6. The display device according to claim 1 ,
wherein the first display panel comprises a first substrate having a light-transmitting property, a second substrate having a light-transmitting property, and a light-emitting element between the first substrate and the second substrate,
wherein the first display portion is provided on the first substrate,
wherein the second display portion is provided on the second substrate, and
wherein the light-emitting element is configured to emit light toward a front surface side of the display device and a rear surface side of the display device.

7. A display device comprising:
a first resin layer and a second resin layer;
a display portion;
a scan line driver circuit;
a signal line driver circuit;
a first plate, a second plate, and a third plate; and
a flexible printed circuit,
wherein:
the display portion includes a region between the first resin layer and the second, resin layer, the scan line driver circuit includes a region between the first resin layer and the second resin layer,
the flexible printed circuit is mounted on the first resin layer,
the signal line driver circuit is over the flexible printed circuit,
the first plate includes a region overlapping the scan line driver circuit with the first resin layer therebetween,
the third plate includes a region overlapping the scan line driver circuit with the second resin layer therebetween,
the first plate and the second plate are on a same plane side of the first resin layer,
the first plate and the second plate are apart from each other,
the first plate includes a region overlapping the third plate,
the first resin layer includes a first region overlapping the first plate, a second region overlapping the second plate, and a third region between the first region and the second region,
the first plate and the second plate are attached to the first resin layer,
the first resin layer is configured to be bent in the third region, and
the scan line driver circuit does not overlap the third region.

8. The display device according to claim 7 , wherein the third plate is not attached to the second resin layer in a region overlapping the third region.

9. The display device according to claim 7 , wherein the third plate does not overlap the third region.

Assignees

• Semiconductor Energy Lab

Inventors

• Yamazaki Shunpei
• Koyama Jun
• Arai Yasuyuki
• Kawamata Ikuko
• Miyaguchi Atsushi
• Moriya Yoshitaka

Classifications

• G09G2380/14

  Electronic books and readers · CPC title

• G09G2380/02

  Flexible displays · CPC title

• G09G2330/021

  Power management, e.g. power saving · CPC title

• H10K2102/311

  Flexible OLED · CPC title

• G09G3/035

  for flexible display surfaces · CPC title