CN217718932U

CN217718932U - Metal support for a foldable flexible screen

Info

Publication number: CN217718932U
Application number: CN202221880782.9U
Authority: CN
Inventors: 倪伟红
Original assignee: Weida Precision Electronics Nantong Co ltd
Current assignee: Weida Precision Electronics Nantong Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-01
Anticipated expiration: 2032-07-20

Abstract

The utility model provides a metal support spare for collapsible flexible screen, metal support spare includes at least one district of buckling, at least one be equipped with a plurality of through-holes and a plurality of half etching holes, a plurality of on the district of buckling the through-hole is with a plurality of half etching hole interval sets up, just half etching hole's area is greater than the area of through-hole. According to the metal support piece provided by the embodiment of the utility model, the bending area is simultaneously provided with the plurality of through holes and the plurality of half-etched holes, so that the support piece can not only ensure the mechanical strength of the bending area, but also avoid the limitation of stress generated in the bending process on the bending action; in addition, the area of the half-etched hole is larger than that of the through hole, so that the mechanical strength of the bending area can be guaranteed, and the flatness of the flexible screen can be improved.

Description

Metal support for a foldable flexible screen

Technical Field

The utility model relates to a flexible screen support piece field especially relates to a metal support piece for collapsible flexible screen.

Background

The flexible screen electronic product meets the requirements of more and more people, and particularly, the mobile phone with the folding flexible screen is more and more popular with more and more people.

In the production process of the flexible screen, the flexible screen needs to be supported by a metal support member to increase the mechanical strength and flatness of the flexible screen. A plurality of through holes are formed in the bending area of the metal supporting piece, so that the stress generated when the supporting piece is bent is absorbed by the through holes, and meanwhile, the mechanical strength of the bending area is required to be guaranteed to support the flexible screen.

And when the area of the through hole is larger, the mechanical strength of the bending area can not be ensured, and when the mechanical strength of the bending area can be ensured, the stress generated by the support piece in the bending process has certain limitation on the bending action.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a metal supporting member for a foldable flexible screen, which is provided with a through hole and a half-etching hole at a bending region to solve the above technical problems.

In order to solve the technical problem, the utility model discloses a following technical scheme:

according to the utility model discloses a metal support spare for collapsible flexible screen, metal support spare includes at least one district of buckling, at least one it is equipped with a plurality of through-holes and a plurality of half etching holes, a plurality of to buckle to distinguish the through-hole with a plurality of half etching hole interval sets up, just half etching hole's area is greater than the area of through-hole.

Preferably, a plurality of the through holes and a plurality of the half etching holes are arranged in a staggered manner.

Preferably, the length direction of the through hole and the half etching hole is parallel to the bending direction of the bending area.

Preferably, the ratio of the area of the half etching hole to the area of the through hole ranges from 2:1 to 1.2.

Preferably, the ratio of the depth of the half-etched hole to the thickness of the metal support ranges from 1:2 to 1.5.

Preferably, the plurality of through holes form a plurality of first rows of through holes along the bending direction of the bending area, the plurality of half-etched holes form a plurality of first rows of half-etched holes along the bending direction of the bending area, and the first rows of through holes and the first rows of half-etched holes are arranged at intervals in a staggered manner.

Preferably, the two sides of the metal supporting member include a first side and a second side, the bending region bends toward the first side, the half-etched hole faces toward the first side, and the flexible screen is connected to the second side of the metal supporting member.

Preferably, the thickness of the metal support ranges from 0.03mm to 0.45mm.

Preferably, the metal support further comprises two non-bendable regions, and the two non-bendable regions are located at two sides of the bending region.

The above technical scheme of the utility model one of following beneficial effect has at least:

the utility model discloses a metal support piece for a foldable flexible screen, which is provided with a plurality of through holes and a plurality of half-etching holes at a bending area simultaneously, so that the support piece can ensure the mechanical strength of the bending area and avoid the limitation of stress generated in the bending process on bending action; in addition, the area of the half-etched hole is larger than that of the through hole, so that the mechanical strength of the bending area can be guaranteed, and the flatness of the flexible screen can be improved.

Drawings

Fig. 1 is a schematic plan view of a metal support for a foldable flexible screen according to an embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic perspective view of a part of a metal support member for a foldable flexible screen according to an embodiment of the present invention;

fig. 4a is a cross-sectional view of a through hole in a metal support for a foldable flexible screen according to an embodiment of the present invention;

fig. 4b is a cross-sectional view of half-etched holes in a metal support for a foldable flexible screen according to an embodiment of the present invention.

Reference numerals:

10. a metal support; 11. a bending zone; 12. a non-bendable region; 13. a through hole; 14. half etching holes; 20. a flexible screen.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

In the prior art, generally, all the bending areas are provided with through holes or half-etched holes, the mechanical strength and the flatness of the bending areas are difficult to ensure due to the fact that all the through holes are arranged, and all the bending areas are provided with the half-etched holes, so that the half-etched holes block stress generated in the bending process of the supporting piece, particularly when the thickness of the supporting piece is thick.

In view of the above technical problem, an embodiment of the present invention provides a metal supporting member 10 for a foldable flexible screen 20, which is provided with a plurality of through holes 13 and half-etched holes 14 at a bending region 11, wherein the area of the half-etched hole 14 is larger than that of the through hole 13, the half-etched hole 14 reduces the thickness of the supporting member, and the through hole 13 prevents the bending of the supporting member from being limited by stress generated when the supporting member is bent; in addition, the through holes 13 and the half etching holes 14 are arranged at intervals, so that the stress uniformity of the flexible screen 20 is improved, and the flatness of the flexible screen 20 is further improved.

The material of the metal supporting member 10 includes stainless steel, titanium alloy, etc., and the embodiment of the present invention is not limited specifically. The through-holes 13 and half-etching holes 14 in the metal support 10 are formed by etching process, and the through-holes 13 are etched by masking etching liquid on both upper and lower sides of the support during the film exposing and developing process. The mask etching solution is etchable on the upper or lower side of the support during the film exposure development for the half-vias 13, i.e. the etching solution etches only a single side of the support during the time course to form half-etching holes 14, while the depth of the half-etching holes 14 is adjusted based on various parameters during the etching process, such as: concentration of etching solution, etching time, etc.

Specifically, as shown in fig. 1 to 3, the embodiment of the present invention provides a metal supporting member 10 for a foldable flexible screen 20, which includes at least one bending area 11, wherein at least one bending area 11 is provided with a plurality of through holes 13 and a plurality of half etching holes 14, the plurality of through holes 13 and the half etching holes 14 are arranged at intervals, and the area of the half etching holes 14 is larger than the area of the through holes 13.

The half-etching holes 14 reduce the thickness of a part of the support member, reduce the limitation of the bending operation caused by the stress generated when the support member is bent, and improve the surface flatness of the flexible screen 20. The through holes 13 and the half-etched holes 14 are formed on the metal support 10 to balance the mechanical strength of the support and the influence of the stress generated in the bending process on the bending process.

As shown in fig. 1, the metal supporting member further includes at least two non-bendable regions 12, and the two non-bendable regions 12 are respectively located at two sides of the bending region 11 to improve the overall mechanical strength of the metal supporting member 10 and increase the bending angle of the bending region 11.

In one embodiment, the through holes 13 and the half etching holes 14 are arranged alternately. The through holes 13 and the half etching holes 14 which are arranged in a staggered mode improve the stress uniformity of the flexible screen 20, and the flatness of the flexible screen 20 is further improved.

In one embodiment, the length directions of the through holes 13 and the half etching holes 14 are parallel to the bending direction of the bending region 11. The length directions of the through holes 13 and the half etching holes 14 are parallel to the bending direction of the bending area 11, so that the bending area 11 can perform bending movement conveniently, and the stress generated when the supporting piece is bent is reduced.

In one embodiment, the ratio of the area of the half etching hole 14 to the area of the through hole 13 is in the range of 2:1 to 1.2. The proportion range can ensure the mechanical strength of the supporting piece when the supporting piece is bent and avoid the limitation of the stress generated when the supporting piece is bent on the bending movement.

When the ratio of the area of the half-etching hole 14 to the area of the through hole 13 is greater than 2:1, there is a stress generated when the support member is bent to restrict the bending operation. When the ratio of the area of the half-etched hole 14 to the area of the through hole 13 is less than 1.2, the bending movement is not limited by the stress generated when the support member is bent, but it is difficult to ensure the mechanical strength of the support member.

In one embodiment, the ratio of the depth of the half-etching hole 14 to the thickness of the metal support 10 ranges from 1:2 to 1.5. The depth of the half-etching hole 14 and the thickness of the supporting piece can ensure the mechanical strength of the supporting piece in the proportion range, and the limitation of the stress generated by the supporting piece in the bending process to the bending movement is avoided.

When the ratio of the depth of the half-etching hole 14 to the thickness of the support member exceeds 1.5, there is a case where the mechanical strength of the support member is insufficient. When the ratio of the depth of the half-etched hole 14 to the thickness of the support member is less than 1:2, there is a case where the stress generated when the support member is bent restricts the bending movement.

In an embodiment, as shown in fig. 1, a plurality of first rows of through holes 13 are formed in the plurality of through holes 13 along the bending direction of the bending region 11, a plurality of first rows of half-etched holes 14 are formed in the plurality of half-etched holes 14 along the bending direction of the bending region 11, and the first rows of through holes 13 and the first rows of half-etched holes 14 are spaced and staggered.

The first row of through holes 13 and the first row of half etching holes 14 are spaced and staggered to provide stress uniformity of the flexible screen 20, and further improve the flatness of the flexible screen 20.

In one embodiment, as shown in fig. 4a and 4b, the two sides of the metal support 10 include a first side and a second side, the bending region 11 is bent toward the first side, the half-etched hole 14 is bent toward the first side, and the flexible screen 20 is connected to the second side of the metal support 10.

The flexible screen 20 is attached to the second side of the support member with the half-etched holes 14 facing the first side of the support member, i.e. the support member contacting the flexible screen 20 has smaller holes, improving the flatness of the flexible screen 20.

Further, the thickness of the metal supporter 10 ranges from 0.03mm to 0.45mm. The support member having such a thickness range not only can ensure the mechanical strength thereof, but also can excessively support the flexible screen 20.

When the thickness of the support member is less than 0.03mm, the support member that is too thin is easily deformed and is weak in mechanical strength to support the flexible screen 20.

When the thickness of support piece was greater than 0.45mm, too thick support piece had stronger mechanical strength, but the stress that produces when support piece buckles is great, and the activity of buckling of restriction support piece reduces user experience.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a metal support spare for collapsible flexible screen which characterized in that, metal support spare includes at least one district of buckling, at least one be equipped with a plurality of through-holes and a plurality of half etching holes on the district of buckling, a plurality of the through-hole with a plurality of half etching hole interval sets up, just half etching hole's area is greater than the area of through-hole.

2. A metal support for a foldable flexible screen according to claim 1, wherein a plurality of said through holes are staggered with a plurality of said half-etched holes.

3. A metal support for a foldable flexible screen according to claim 1, wherein the length direction of said through holes and half-etched holes is parallel to the bending direction of said bending region.

4. A metal support for a foldable flexible screen according to claim 1, wherein the ratio of the area of said half-etched holes to the area of the through holes ranges from 2:1 to 1.2.

5. The metal support for a foldable flexible screen according to claim 1, wherein the ratio of the depth of said half-etched holes to the thickness of said metal support is in the range of 1:2 to 1.5.

6. The metal support for a foldable flexible screen according to claim 2, wherein a plurality of said through holes form a plurality of first rows of through holes along the bending direction of said bending region, a plurality of said half-etched holes form a plurality of first rows of half-etched holes along the bending direction of said bending region, and said first rows of through holes and said first rows of half-etched holes are spaced and staggered.

7. A metal support for a foldable flexible screen according to claim 1, wherein the two sides of the metal support comprise a first side and a second side, the bending region is bent towards the first side, the half-etched hole is towards the first side, and the flexible screen is attached to the second side of the metal support.

8. A metal support for a foldable flexible screen according to claim 1, wherein the thickness of the metal support ranges from 0.03mm to 0.45mm.

9. A metal support for a foldable flexible screen according to claim 1, wherein said metal support further comprises two non-bendable regions, two of said non-bendable regions being located on either side of said bending region.