Display apparatus

Patent metadata

Field	Value
Publication number	US-12111697-B2
Application number	US-202117781091-A
Country	US
Kind code	B2
Filing date	May 13, 2021
Priority date	Jun 22, 2020
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A display apparatus includes a first housing provided with an opening therein, a first reel rotatably disposed in the first housing, a second reel rotatably disposed in the first housing, a flexible display panel, and a flexible support plate. The second reel and the first reel are arranged at intervals and extend in a same direction. A first end of the flexible display panel is connected to the first reel and wound on the first reel, and a first end of the flexible support plate is connected to the second reel and wound on the second reel. The flexible display panel and the flexible support plate are configured such that when the flexible display panel and the flexible support plate extend out of the first housing through the opening, the flexible support plate is capable of gradually attaching to the first housing to support the flexible display panel.

First claim

What is claimed is:

1. A display apparatus, comprising:
a first housing provided with an opening therein;
a first reel rotatably disposed in the first housing;
a second reel rotatably disposed in the first housing, the second reel and the first reel being arranged at intervals, and extending in a same direction;
a flexible display panel, a first end of the flexible display panel being connected to the first reel and wound on the first reel;
a flexible support plate, a first end of the flexible support plate being connected to the second reel and wound on the second reel;
a first spring, the first spring being in a spiral shape and arranged around the first reel, an end of the first spring being connected to the first reel, and another end of the first spring being connected to the first housing; and
a second spring, the second spring being in a spiral shape and arranged around the second reel, an end of the second spring being connected to the second reel, and another end of the second spring being connected to the first housing; wherein
the flexible display panel and the flexible support plate are configured such that when the flexible display panel and the flexible support plate extend out of the first housing through the opening, the flexible support plate is capable of gradually attaching to the first housing to support the flexible display panel;
the first spring is configured such that when the first reel rotates in a first rotation direction, the first spring is tightened to apply a first restoring force for driving the first reel to rotate in a second rotation direction to the first reel, the first rotation direction being a rotation direction of the first reel when the flexible display panel extends out of the first housing through the opening, the second rotation direction being opposite to the first rotation direction; and
the second spring is configured such that when the second reel rotates in a third rotation direction, the second spring is tightened up to apply a second restoring force for driving the second reel to rotate in a fourth rotation direction to the second reel; the third rotation direction being a rotation direction of the second reel when the flexible display panel extends out of the first housing through the opening, the fourth rotation direction being opposite to the third rotation direction.

2. The display apparatus according to claim 1 , wherein
the first housing includes a first housing wall, the opening is disposed in the first housing wall, the second reel is disposed between the first housing wall and the first reel, or the first reel is disposed between the first housing wall and the second reel; and
an extending direction of the flexible support plate from the second reel to outside of the first housing is parallel to an extending direction of the flexible display panel from the first reel to the outside of the first housing, and a portion of the flexible support plate extending out of the second reel is attached to a portion of the flexible display panel extending out of the first reel.

3. The display apparatus according to claim 2 , further comprising:
a first limiting member and a second limiting member that are disposed in the first housing, the first limiting member and the second limiting member having a first gap therebetween, wherein the flexible display panel and the flexible support plate pass through the first gap, and a width of the first gap is less than or equal to a sum of thicknesses of the flexible display panel and the flexible support plate.

4. The display apparatus according to claim 3 , wherein
the first limiting member is a first limiting roller, the second limiting member is a second limiting roller, and the first limiting roller and the second limiting roller extend in a same direction and are both rotatably arranged in the first housing.

5. The display apparatus according to claim 2 , further comprising:
a third limiting member disposed in the first housing, the third limiting member and the second reel having a second gap therebetween, wherein the flexible display panel and the flexible support plate pass through the second gap, and a width of the second gap is less than or equal to a sum of thicknesses of the flexible display panel and the flexible support plate.

6. The display apparatus according to claim 5 , wherein
the third limiting member is a third limiting roller, and the third limiting roller is rotatably arranged in the first housing, and the third limiting roller and the second reel extend in a same direction.

7. The display apparatus according to claim 1 , further comprising:
a second housing and a display driver, the display driver being disposed in the second housing and configured to drive the flexible display panel to perform display;
a second end of the flexible display panel and a second end of the flexible support plate are both connected to the second housing;
wherein the second end of the flexible display panel is an end of the flexible display panel extending out of the first housing, and the second end of the flexible support plate is an end of the flexible support plate extending out of the first housing.

8. The display apparatus according to claim 7 , wherein
an installation slot is provided on an outer surface of a housing wall of the second housing, in a direction in which the flexible display panel extends out or retracts relative to the first housing, an end of the installation slot proximate to the first housing has an insertion opening, and another end of the installation slot away from the first housing is sealed;
the second end of the flexible display panel and the second end of the flexible support plate extend into the installation slot through the insertion opening, and in the installation slot, a surface of the flexible support plate is adhered to a slot wall of the installation slot, and another surface is attached to the flexible display panel.

9. The display apparatus according to claim 7 , further comprising:
a scissor mechanism connected between the first housing and the second housing; wherein
the scissor mechanism includes a plurality of connecting rod groups arranged in a direction in which the flexible display panel extends out or retracts relative to the first housing, each connecting rod groups includes two connecting rods whose middle portions are hinged together;
in two adjacent connecting rod groups, ends of two connecting rods in one connecting rod groups proximate to another connecting rod group are hinged with ends of two connecting rods in the another connecting rod group proximate to the one connecting rod group in a one-to-one correspondence;
in a connecting rod group adjacent to the first housing, ends of two connecting rods proximate to the first housing are respectively hinged with the first housing, and an end of at least one connecting rods of the two connecting rods proximate to the first housing is configured to be capable of moving relative to the first housing in a length direction of the first reel; and
in a connecting rod group adjacent to the second housing, ends of two connecting rods proximate to the second housing are respectively hinged with the second housing, and an end of at least one connecting rods of the two connecting rods proximate to the second housing is configured to be capable of moving relative to the second housing in the length direction of the first reel.

10. The display apparatus according to claim 1 , wherein
the flexible support plate includes a flexible support plate body and an adhesive film adhered to a surface of the flexible support plate body;
the adhesive film is configured such that when the flexible display panel and the fle

Assignees

• Boe Technology Group Co Ltd

Inventors

• Luo Xiaofei
• Chu Shangchieh
• Yang Yanyan

Classifications

• G06F1/1656

  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

• G09F9/301

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

• G06F1/1652 Primary

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