Rollable display device

Patent metadata

Field	Value
Publication number	US-9760129-B2
Application number	US-201514957636-A
Country	US
Kind code	B2
Filing date	Dec 3, 2015
Priority date	Feb 13, 2015
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A rollable display device, including a flexible display panel; a roller having a cylindrical shape, one end of the flexible display panel being fixed to the roller and rolled around the roller, the roller including a penetration part, the penetration part being inclined with respect to a circumferential surface of the roller, the flexible display panel penetrating through the penetration part; and a first guide at a portion adjacent to the penetration part on the circumferential surface of the roller, the first guide guiding the flexible display panel penetrating through the penetration part to be adjacent to an outer surface of the roller.

First claim

What is claimed is:

1. A rollable display device, comprising:
a flexible display panel;
a roller having a cylindrical shape, one end of the flexible display panel being fixed to the roller and rolled around the roller, the roller including a penetration part, the penetration part being inclined with respect to a circumferential surface of the roller, the flexible display panel penetrating through the penetration part; and
a first guide at a portion adjacent to the penetration part on the circumferential surface of the roller, the first guide guiding the flexible display panel penetrating through the penetration part and pressing a part of the flexible display panel that is outside of the penetration part to an outer surface of the roller.

2. The rollable display device as claimed in claim 1 , wherein a cross section of the penetration part has an arc shape.

3. The rollable display device as claimed in claim 1 , wherein one end of the first guide at least partially covers the penetration part.

4. The rollable display device as claimed in claim 3 , wherein an end portion of the first guide covering the penetration part has a same radius of curvature as a radius of curvature of the penetration part.

5. The rollable display device as claimed in claim 1 , wherein the first guide includes an elastically deformable material.

6. The rollable display device as claimed in claim 1 , wherein the first guide is formed integrally with the roller.

7. The rollable display device as claimed in claim 1 , wherein an end portion of the flexible display panel in the roller is fixedly coupled to an inner wall of the roller.

8. The rollable display device as claimed in claim 1 , further comprising a second guide having a curved plate shape, the second guide partially enclosing the roller and the first guide, the second guide covering the first guide on the exterior of the penetration part, and the second guide being on and contacting the outer surface of the roller.

9. The rollable display device as claimed in claim 8 , wherein the second guide has a same radius of curvature as a radius of curvature of the roller.

10. A rollable display device, comprising:
a flexible display panel;
a roller having a cylindrical shape, one end of the flexible display panel being fixed to the roller and rolled around the roller, the roller including a penetration part, the penetration part being inclined with respect to a circumferential surface of the roller, the flexible display panel penetrating through the penetration part; and
a first guide at a portion adjacent to the penetration part on the circumferential surface of the roller, the first guide guiding the flexible display panel penetrating through the penetration part and pressing a part of the flexible display panel that is outside of the penetration part to an outer surface of the roller,
wherein one end of the first guide at least partially covers the penetration part, and
wherein an end portion of the first guide covering the penetration part has a same radius of curvature as a radius of curvature of the penetration part.

11. The rollable display device as claimed in claim 10 , wherein a cross section of the penetration part has an arc shape.

12. The rollable display device as claimed in claim 10 , wherein the first guide includes an elastically deformable material.

13. The rollable display device as claimed in claim 10 , wherein the first guide is formed integrally with the roller.

14. The rollable display device as claimed in claim 10 , wherein an end portion of the flexible display panel in the roller is fixedly coupled to an inner wall of the roller.

15. The rollable display device as claimed in claim 10 , further comprising a second guide having a curved plate shape, the second guide partially enclosing the roller and the first guide, the second guide covering the first guide on the exterior of through the penetration part, and the second guide being on and contacting the outer surface of the roller.

16. The rollable display device as claimed in claim 15 , wherein the second guide has a same radius of curvature as a radius of curvature of the roller.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Youn Joon
• Lee Jung Hun
• Lee Jusuck
• Choi Kyung Min
• Lee Sang Jo

Classifications

• G06F1/1652 Primary

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

• G06F1/1656 Primary

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G09F11/02

  the display elements being secured to rotating members, e.g. drums, spindles · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title