Adjustable frame and foldable display device

Patent metadata

Field	Value
Publication number	US-12066865-B2
Application number	US-202017299333-A
Country	US
Kind code	B2
Filing date	Aug 28, 2020
Priority date	Aug 28, 2020
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

The present disclosure relates to the field of display technology, and proposes an adjustable frame and a foldable display device. The adjustable frame includes a central shaft part, a rotatable frame part, a movable frame part, and an adjustment mechanism. The rotatable frame part is rotatably connected to the central shaft part. The movable frame part is arranged on a side of the rotatable frame part away from the central shaft part. An end of the adjustment mechanism is connected to the central shaft part, and an opposite end of the adjustment mechanism is connected to the movable frame part. The adjusting mechanism is configured to adjust the spacing between the movable frame part and the rotatable frame part with rotation of the rotatable frame part and the movable frame part.

First claim

The invention claimed is:

1. An adjustable frame, comprising:
a central shaft part;
a rotatable frame part, rotatably connected to the central shaft part;
a movable frame part, provided on a side of the rotatable frame part away from the central shaft part; and
an adjustment mechanism, wherein an end of the adjustment mechanism is connected to the central shaft part, and an opposite end of the adjustment mechanism is connected to the movable frame part, wherein
the adjustment mechanism is configured to adjust a spacing between the movable frame part and the rotatable frame part with rotation of the rotatable frame part and the movable frame part,
wherein the adjustment mechanism comprises:
a fixed shaft, having a cylindrical shape and fixed to the central shaft part, wherein the fixed shaft is arranged coaxially with a rotating shaft of the rotatable frame part; and
a bendable connector, having a first end and a second end opposite to each other, wherein the first end is fixed to the central shaft part, the second end is connected to the movable frame part, and the bendable connector is configured to wind around a cylindrical surface of the fixed shaft with the rotation of the rotatable frame part and the movable frame part when the adjustable frame is folded outward, thereby driving the movable frame part to move toward the rotatable frame part.

2. The adjustable frame according to claim 1 , wherein an annular groove is provided on the fixed shaft, the annular groove is arranged coaxially with the fixed shaft and the bendable connector is configured to wind inside the annular groove.

3. The adjustable frame according to claim 1 , wherein the adjustment mechanism further comprises:
a fixed part, fixed on the central shaft part and located on a side of the fixed shaft away from the rotatable frame part in a deployed state, wherein the first end of the bendable connector is fixed to the fixed part, such that the bendable connector winds around at least a quarter arc on the fixed shaft when the adjustable frame is folded outward.

4. The adjustable frame according to claim 3 , wherein the adjustment mechanism further comprises:
a limit plate, arranged on a side of the fixed shaft close to a flexible display panel and on a side of the fixed shaft close to the fixed part, wherein the limit plate extends to a position where the bendable connector and the fixed shaft is tangent to each other.

5. The adjustable frame according to claim 1 , wherein the adjustment mechanism further comprises:
a fixed part, fixed on the central shaft part and located on a side of the fixed shaft away from a flexible display panel, wherein the first end of the bendable connector is fixed to the fixed part, such that the bendable connector winds around at least a quarter arc on the fixed shaft when the adjustable frame is deployed, and such that the bendable connector winds around at least a half arc on the fixed shaft when the adjustable frame is folded outward.

6. The adjustable frame according to claim 1 , wherein the adjustment mechanism further comprises:
a sliding groove, fixed to the rotatable frame part, wherein an extending direction of the sliding groove is consistent with a moving direction of the movable frame part;
a slider, arranged in the sliding groove and fixedly connected with the second end of the bendable connector and the movable frame part; and
an elastic member, provided between the slider and the sliding groove, and configured to drive the slider and the movable frame part to move when the bendable connector is in a loose state.

7. The adjustable frame according to claim 6 , wherein a baffle is provided at an end of the sliding groove close to the central shaft part, and the elastic member comprises a compression spring connected between the baffle and the slider.

8. The adjustable frame according to claim 6 , wherein a baffle is provided at an end of the sliding groove away from the central shaft part, and the elastic member comprises an extension spring connected between the baffle and the slider.

9. The adjustable frame according to claim 6 , wherein the slider is provided with a mounting post, an extending direction of the mounting post is consistent with a moving direction of the movable frame part, and the mounting post is coated with the elastic member.

10. The adjustable frame according to claim 6 , wherein the movable frame part is configured as a shell in a cuboid shape, an opening is provided on a side of the shell close to the rotatable frame part, and an end of the rotatable frame part away from the central shaft part is inserted into the shell through the opening.

11. The adjustable frame according to claim 10 , wherein the adjustment mechanism further comprises:
a positioning post, fixed to an inner side wall of the shell;
a mounting plate, fixed to the positioning post, wherein the second end of the bendable connector is fixed to the mounting plate; and
an elongated sliding hole, provided on a side wall of the sliding groove close to the positioning post, wherein a length direction of the sliding hole is consistent with a sliding direction of the slider, and the mounting plate penetrates the sliding hole so as to be fixedly connected with the slider.

12. The adjustable frame according to claim 1 , wherein the bendable connector comprises a steel wire rope or a nylon rope.

13. The adjustable frame according to claim 1 , wherein there are two adjustment mechanisms, and the two adjustment mechanisms are respectively arranged at opposite ends of the central shaft part.

14. An adjustable frame, comprising:
a central shaft part;
a rotatable frame part, rotatably connected to the central shaft part;
a movable frame part, provided on a side of the rotatable frame part away from the central shaft part; and
an adjustment mechanism, wherein an end of the adjustment mechanism is connected to the central shaft part, and an opposite end of the adjustment mechanism is connected to the movable frame part, wherein
the adjustment mechanism is configured to adjust a spacing between the movable frame part and the rotatable frame part with rotation of the rotatable frame part and the movable frame part,
wherein
there are two rotatable frame parts, and the two rotatable frame parts are rotatably connected respectively to opposite sides of the central shaft part;
there are two movable frame parts, wherein each movable frame part is arranged on a side of a respective rotatable frame part away from the central shaft part; and
there are four adjustment mechanisms, two of the four adjustment mechanisms constitute a group of adjustment mechanisms connected to a respective movable frame part.

15. A foldable display device, comprising:
an adjustable frame, comprising:
a central shaft part;
a rotatable frame part, rotatably connected to the central shaft part;
a movable frame part, provided on a side of the rotatable frame part away from the central shaft part; and
an adjustment mechanism, wherein an end of the adjustment mechanism is connected to the central shaft part, and an opposite end of the adjustment mechanism is connected to the movable frame part, wherein the adjustment mechanism is configured to adjust a spacing between the movable frame part and the rotatable frame part with rotation of the rotatable frame part and the movable frame part; and

a flexible display panel, arranged on a side of the adjustable frame away from the adjustment mechanism,
wherein the adjustment mechanism comprises:
a fixed shaft, having a cylindrical shape and fixed to the central shaft part, wherein the fixed

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhang Chong
• Sun Baofeng
• Zhou Yonghong
• Yang Yanyan
• Chu Shangchieh
• Zhou Pengfei
• Wang Yanli
• Liu Wei
• Wang Bo

Classifications

• H04M1/0268

  including a flexible display panel · CPC title

• H04M1/022

  The hinge comprising two parallel pivoting axes · CPC title

• G06F1/1683

  for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling · CPC title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F1/1618

  the display being foldable up to the back of the other housing with a single degree of freedom, e.g. by 360° rotation over the axis defined by the rear edge of the base enclosure · CPC title