Display device and support structure thereof

Patent metadata

Field	Value
Publication number	US-11730288-B2
Application number	US-202016887730-A
Country	US
Kind code	B2
Filing date	May 29, 2020
Priority date	Dec 4, 2019
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

The present disclosure provides a display device and a support structure thereof, the support structure being configured to support a flexible display screen and comprising a support component and a synchronous transmission component, wherein: the support component comprises two telescopic rods, and has a fixed side fixed relative to a fixed side edge of the flexible display screen, and a movable side extendable and retractable with expansion or winding of a movable side edge of the flexible display screen; and the synchronous transmission component is connected to the support component, and is configured to move ends of the two telescopic rods on the movable side of the support component synchronously in a direction parallel to the movable side edge of the flexible display screen.

First claim

What is claimed is:

1. A support structure for supporting a flexible display screen, comprising a support component and a synchronous transmission component, wherein:
the support component comprises two telescopic rods, and has a fixed side fixed relative to a fixed side edge of the flexible display screen, and a movable side extendable and retractable with expansion or winding of a movable side edge of the flexible display screen; and
the synchronous transmission component is connected to the support component, and is configured to move ends of the two telescopic rods on the movable side of the support component synchronously in a direction parallel to the movable side edge of the flexible display screen,
wherein each of the telescopic rods comprises a plurality of sub-links hinged end to end and having the same length; and the sub-links of the two telescopic rods are hinged in a one-to-one correspondence manner with a hinged position located at a central position of the two hinged sub-links; and
two ends of each telescopic rod are respectively used as the fixed side and the movable side,
wherein the synchronous transmission component comprises two synchronization groups and two transmission groups, wherein
one of the synchronization groups is connected to the fixed sides of the two telescopic rods, and the other of the synchronization groups is connected to the movable sides of the two telescopic rods; each of the synchronization groups comprises a fixed member and two movable members, wherein the ends of the two telescopic rods are connected to the fixed member in a relatively movable manner, and a direction of the relative movement is parallel to the movable side edge of the flexible display screen; the two movable members are respectively hinged to the ends of the two telescopic rods that are connected to the fixed member; and
the two transmission groups are respectively disposed on the fixed members in the two synchronization groups, and each of the transmission groups comprises a transmission member that is connected to the two movable members in a relatively movable manner and configured to move the two movable members synchronously in the direction parallel to the movable side edge of the flexible display screen,
wherein each of the movable members comprises a rack, and the transmission member comprises at least one gear disposed between and engaged with two opposite racks, wherein both of the racks are parallel to the direction of the movable side edge of the flexible display screen and respectively integrated with the two movable members.

2. The support structure according to claim 1 , wherein each two adjacent sub-links of the same telescopic rod, and each of the sub-links correspondingly hinged to the two telescopic rods, are hinged by a first pin.

3. The support structure according to claim 2 , wherein the resistance member comprises a helical elastic washer disposed circumferentially between the first pin and the connecting hole in a compressed state.

4. The support structure according to claim 1 , wherein in each of the synchronization groups, each of the movable members is hinged to one of the telescopic rods by a second pin, and the fixed member is provided with two sliding grooves into which the two second pins corresponding to the two movable members are respectively located and slidable along the sliding grooves.

5. The support structure according to claim 1 , further comprising a limit component configured to limit a minimum distance between the fixed and movable sides of the support component when the support component is in a retracted state.

6. The support structure according to claim 5 , wherein the limit component comprises at least one stopper disposed on the fixed member of one of the synchronization groups and located between the fixed members of the two synchronization groups.

7. The support structure according to claim 5 , wherein the limit component comprises two stopper groups, each of which comprises at least one stopper, the stoppers in the two stopper groups are respectively disposed on the fixed members of the two synchronization groups, and the stoppers in the two stopper groups are respectively located between the fixed members of the two synchronization groups.

8. A display device, comprising a flexible display screen and a winding reel for winding the flexible display screen, and further comprising the support structure according to claim 1 , wherein the support structure is configured to enable different positions on the movable side edge of the flexible display screen away from the winding reel to be synchronously wound.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Luo Xiaofei
• Chu Shangchieh
• Yang Yanyan

Classifications

• A47G5/02 Primary

  Roll-up screens · CPC title

• G09F9/301 Primary

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

• G09F15/0012

  frames therefor · CPC title

• G09F15/0062

  collapsible · CPC title

• G06F1/1652

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