Display device having bent display area for reduced bezel width

Patent metadata

Field	Value
Publication number	US-9697764-B2
Application number	US-201313926741-A
Country	US
Kind code	B2
Filing date	Jun 25, 2013
Priority date	Nov 14, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

The present disclosure relates to a display panel having a structure in which the left and right lateral side bezel areas are bent downward to reduce the width of bezel area visible to a user. The display device includes a transparent cover plate and a flexible display layer secured to the transparent cover plate. The transparent cover includes a flat portion. The flexible display layer includes a display area and a non-display area. The display area includes an upper flat area extending along a first plane below the flat portion of the transparent cover plate. The non-display area extends from at least an edge of the display area and at least part of the non-display area extends along a second plane for connection to receive a signal for displaying an image on the flexible display layer. A signal line between a signal source and the non-display area transmit the signal from the signal source to the non-display area.

First claim

What is claimed is:

1. A display device comprising:
a first portion of a flexible display layer extending along a first plane, the first portion comprising at least a first part of a display area for displaying an image;
a pair of second portions of the flexible display layer extending along a second plane different from the first plane, the second portions comprising second parts of the display area and at least non-display areas extending from the second parts of the display area for connection to receive a signal to display the image;
a third portion of the flexible display layer between one edge of the first portion and one of the second portions, the third portion including a third part of the display area, wherein the third portion is bent;
a fourth portion of the flexible display layer between another edge of the first portion and another of the second portions, the fourth portion including a fourth part of the display area, wherein the fourth portion is bent;
a signal line between a signal source and the non-display area of the flexible display to transmit the signal from the source to the non-display area; and
a transparent cover plate including:
a first flat part supporting the first portion of the flexible display layer,
a first side part extending from an edge of the first flat part and supporting the third portion of the flexible display layer,
a second side part extending from another edge of the first part and supporting the fourth portion of the flexible display layer,
a second flat part extending from the first side part and supporting one of the second portions of the flexible display layer, and
a third flat part extending from the second side part and supporting the other of the second portions of the flexible display layer, the first and second side parts in conjunction with the first flat part, the second flat part and the third flat part defining space for holding the flexible display layer; and

a frame between an edge of the second flat part and an edge of the third flat part facing the edge of the second flat part.

2. The display device of claim 1 , wherein the first portion of the flexible display layer covers a top surface of an electronic device.

3. The display device of claim 1 , wherein the second plane is parallel to the first plane and separated from the first plane by a distance.

4. The display device of claim 1 , wherein the flexible display layer comprises an organic light emitting layer.

5. The display device of claim 1 , further comprising a touch panel layer between the transparent cover plate and the flexible display layer, the touch panel layer coextensive with the display area of the flexible display layer.

6. The display device of claim 5 , wherein the touch panel layer comprises:
a first touch panel sub-layer having horizontal touch electrode lines; and
a second touch panel sub-layer having vertical touch electrode line.

7. The display device of claim 1 , wherein the non-display area of the flexible display layer is not secured to the transparent cover plate.

8. The display device of claim 1 , further comprising a polarization film between the transparent cover plate and the flexible display layer, the polarization film coextensive with the display area of the flexible display layer.

9. The display device of claim 8 , wherein the polarization film is secured to the display area of the flexible display layer but not to the non-display area of the flexible display layer.

10. A display device comprising:
a first portion of a flexible display layer extending along a first plane, the first portion comprising at least a first part of a display area for displaying an image;
a pair of second portions of the flexible display layer extending along a second plane different from the first plane, the second portions comprising second parts of the display area and at least non-display areas extending from the second parts of the display area for connection to receive a signal to display the image;
a third portion of the flexible display layer between one edge of the first portion and one of the second portions, the third portion including a third part of the display area, wherein the third portion is bent;
a fourth portion of the flexible display layer between another edge of the first portion and another of the second portions, the fourth portion including a fourth part of the display area, wherein the fourth portion is bent; and
a signal line between a signal source and the non-display area of the flexible display to transmit the signal from the source to the non-display area,
wherein the second portion of the flexible display layer covers a bottom surface of the display device, and wherein at least part of the non-display area of the second portions of the flexible display layer extending from the second part of the display area is bent inward towards the first portion of the flexible display layer.

11. The display device of claim 10 , wherein the non-display areas meet at a bottom center of the display device.

12. The display device of claim 1 , further comprising a frame between the second flat part and a third flat part of the transparent cover plate parallel with second flat part and connected to the first flat part via another side part of the transparent cover plate, and wherein the frame is located between the second flat part and the third flat part of the transparent cover plate.

13. The display device of claim 11 , further comprising a rigid back panel surrounded by the first, second and third portions to provide support for the first, second and third portions.

14. The display device of claim 1 , wherein the second flat part covers the second portion of the flexible display layer and the non-display area of the second portion.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Changnam
• Lee Jaeyoung
• Tak Yoonheung
• Yang Wonjae
• Kim Doyoul

Classifications

• H04M1/0269

  mounted in a fixed curved configuration, e.g. display curved around the edges of the telephone housing · CPC title

• H04M1/0268

  including a flexible display panel · CPC title

• G06F1/1626 Primary

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• G06F1/1637

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• G06F1/1652 Primary

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