Flexible display device including folding section

Patent metadata

Field	Value
Publication number	US-9287341-B2
Application number	US-201414530506-A
Country	US
Kind code	B2
Filing date	Oct 31, 2014
Priority date	Jun 10, 2014
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

A flexible display device includes a folding section formed on a flexible substrate, a flat section connected to the folding section, and a display area for displaying an image, wherein the display area is formed on the folding section and the flat section, wherein each of the display areas of the folding section and the flat section includes a plurality of pixels and a plurality of wires for supplying electrical signals to the pixels, and wherein the wires in the display area of the folding section include a winding wire extending in a winding configuration on the flexible substrate.

First claim

What is claimed is:

1. A flexible display device comprising:
a folding section formed on a flexible substrate;
a flat section connected to the folding section; and
a display area for displaying an image, wherein the display area is formed on the folding section and the flat section,
wherein each of the display areas of the folding section and the flat section includes a plurality of pixels and a plurality of wires for supplying electrical signals to the pixels, and
wherein the wires in the display area of the folding section include a winding wire extending in a winding configuration on the flexible substrate.

2. The flexible display device of claim 1 , wherein the winding wire in the display area of the folding section is formed having a wave-line shape.

3. The flexible display device of claim 1 , wherein the winding wire in the display area of the folding section includes a bent portion that extends and bends at a pre-determined angle.

4. The flexible display device of claim 1 , wherein the winding wire in the display area of the folding section branches out and extends from the wires in the display area of the flat section, and
a vertical width of the winding wire repeatedly increases and decreases along a direction in which the winding wire extends.

5. The flexible display device of claim 1 , wherein the wires in the display area of the folding section have a longer length per unit area than the wires in the display area of the flat section.

6. The flexible display device of claim 1 , wherein the winding wire in the display area of the folding section extends in a direction in which the folding section is folded.

7. The flexible display device of claim 1 , wherein the winding wire in the display area of the folding section includes a gate wire.

8. A flexible display device comprising:
a folding section;
a flat section connected to the folding section; and
a display area for displaying an image, wherein the display area is formed on the folding section and the flat section,
wherein each of the display areas of the folding section and the flat section includes a plurality of pixels, and
wherein the pixels in the display area of the folding section have boundaries that are inclined with respect to the boundaries of the pixels in the display area of the flat section.

9. The flexible display device of claim 8 , wherein the pixels in the display area of the folding section have a rhombic shape.

10. The flexible display device of claim 8 , wherein each pixel in the display area of the folding section is divided into at least three subpixels.

11. The flexible display device of claim 8 , wherein each pixel in the display area of the folding section is equally divided into four subpixels, and
the four subpixels respectively emit red light, green light, blue light, and white light.

12. The flexible display device of claim 8 , wherein the display area in the folding section includes pixels that are smaller than the pixels in the display area of the flat section.

13. A flexible display device comprising:
a folding section formed on a flexible substrate;
a flat section connected to the folding section; and
a display area for displaying an image, wherein the display area is formed on the folding section and the flat section,
wherein each of the display areas of the folding section and the flat section includes a plurality of pixels and a plurality of wires for supplying electrical signals to the pixels,
wherein the wires in the display area of the folding section include a winding wire extending in a winding configuration on the flexible substrate, and
wherein the pixels in the display area of the folding section have boundaries that are inclined with respect to the boundaries of the pixels in the display area of the flat section.

14. The flexible display device of claim 13 , wherein the winding wire includes a portion extending parallel to the boundaries of the pixels in the display area of the folding section.

15. The flexible display device of claim 13 , wherein the winding wire branches out and extends from the wires in the display area of the flat section, and surrounds the pixels in the display area of the folding section.

16. The flexible display device of claim 13 , wherein the flat section includes at least two flat sections, and
the folding section is disposed between adjacent flat sections.

17. The flexible display device of claim 13 , wherein the display area is an organic light emitting diode display panel.

Assignees

• Samsung Display Co Ltd

Inventors

• Cheon Jun Hyuk
• Kim Kwang Jun
• Kwak Hee June
• Kim Mu Gyeom

Classifications

• H10K2102/311

  Flexible OLED · CPC title

• H10K77/00

  Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80 · CPC title

• H10K59/353 Primary

  characterised by the geometrical arrangement of the RGB subpixels · CPC title

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• H10K59/351

  comprising more than three subpixels, e.g. red-green-blue-white [RGBW] · CPC title