3D curved surface backboard structure

Abstract

The invention provides a 3D curved-surface backboard structure, which enables four edges and four corners of a backboard to have reliable bending performance, and improves the aesthetic property of a 3D curved-surface screen. The back plate is a stainless steel plate body; the central area of the back plate is a non-curved-surface area, the four edges and the four corners of the back plate are curved-surface areas, the four corners of the back plate are of arc structures, the four edges of the back plate are each provided with a plurality of rows of strip-shaped hole grooves, and the four arc structures of the back plate are each provided with a plurality of row hole structures and interval row holes which are sequentially arranged in the radian direction. A plurality of strip-shaped holes which are arranged at intervals are sequentially formed in each row of strip-shaped hole grooves in the side length direction, and the interval distances of the adjacent rows of strip-shaped hole grooves are the same; each group of row hole structures comprises a radial inner end starting long strip hole, a radial middle long strip hole and a radial tail end notch groove, the radial tail end notch groove is a notch structure corresponding to the edge position, interval row holes are further formed between the adjacent row hole structures, and each group of interval row holes comprises a radial inner end hole strip and a radial outer end hole strip.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D curved screen structures, and in particular to a 3D curved back panel structure. Background Art

[0002] The curved screen of an existing mobile phone or tablet is generally composed of a surface layer, a PSA layer, a metal layer, and a PF layer, wherein the metal layer is a copper foil layer. Pure copper is soft and has good extensibility and heat dissipation. However, in actual use, pure copper is expensive, has poor high temperature performance, and poor corrosion resistance. When the surface is actually processed, the four sides of the copper foil have folding properties, but the four corners of the copper foil do not have bending properties, which leads to wrinkled glue at the corners after being bent into a 3D curved surface, resulting in relatively poor aesthetics of the 3D curved surface at the four corners. Therefore, it is urgent to develop a reliable 3D curved backplane structure to improve the aesthetics of the final 3D curved screen. Summary of the invention

[0003] In view of the above problems, the present invention provides a 3D curved back panel structure, which enables the four sides and four corners of the back panel to have reliable bendability, thereby improving the aesthetics of the 3D curved screen.

[0004] A 3D curved back plate structure, characterized in that: the back plate is a stainless steel plate body;

[0005] The central area of ​​the back plate is a non-curved area, the four sides and four corners of the back plate are curved areas, the four corners of the back plate are arc structures, the four sides of the back plate are respectively provided with a plurality of row hole grooves, and the positions of the four arc structures of the back plate are respectively provided with a plurality of row hole structures and spaced row holes arranged in sequence along the arc direction;

[0006] Each row of slots is provided with a plurality of slots arranged at intervals in sequence along the length of the side, and the intervals between adjacent rows of slots are arranged at the same distance;

[0007] Each group of hole rows includes a radial inner starting long strip hole, a radial middle long strip hole, and a radial end notch groove, wherein the radial end notch groove is a notch structure corresponding to the edge position, and adjacent hole rows also include spaced rows of holes, each group of spaced rows of holes includes a radial inner end hole bar and a radial outer end hole bar, and each group of spaced rows of holes corresponds to an arc position and is arranged radially from the inside to the outside.

[0008] It is further characterized by:

[0009] The strip holes of the adjacent strip hole rows of the back plate are arranged in a staggered arrangement structure corresponding to the length area, which ensures that at least one gap is arranged at the position corresponding to the length area of ​​every two adjacent strip hole rows, ensuring that there is sufficient curved surface forming space;

[0010] A dotted groove is provided at the starting edge position of one group of the two adjacent groups of the row of slots on the short side of the back plate, which is used to indicate that this side is the short side;

[0011] A contoured notch is provided at the top edge of the back plate at the position corresponding to the lens, so as to ensure a reasonable and reliable arrangement of the lens;

[0012] The hole arrangement density on the inner side of the radial position of the four arc structures of the back plate is greater than the hole arrangement density on the outer side of the radial position, so as to ensure reliable forming of the curved surface;

[0013] Adjacent row hole structures and hole slots of alternate row holes form a staggered arrangement structure corresponding to the radial position area, which ensures that each group of adjacent row hole structures and hole slots of alternate row holes is provided with at least one notch corresponding to the radial area position, ensuring sufficient curved surface forming space;

[0014] The holes and grooves of the circular arc structure on the four sides and four corners of the back plate are obtained by etching;

[0015] The thickness of the back plate is 50 μm.

[0016] After adopting the structure of the present invention, by performing front-end processing on the back panel, a plurality of rows of hole grooves are respectively provided on the four sides of the back panel, and a plurality of rows of hole structures and spaced rows of holes are respectively provided at the positions of the four arc structures of the back panel which are sequentially arranged along the arc direction, so that the four sides and four corners of the back panel can reliably form a 3D curved surface of a set shape, which makes the four sides and four corners of the back panel have reliable bendability, thereby improving the aesthetics of the 3D curved screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main view structure of the present invention;

[0018] Figure 2 It is a partial enlarged schematic diagram of point A of the present invention;

[0019] Figure 3 It is a partial enlarged schematic diagram of point B of the present invention;

[0020] Figure 4 It is a partial enlarged schematic diagram of the C part of the present invention;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Back plate 10, non-curved area 101, long side 102, short side 103, corner position 104, contoured notch 105, strip hole groove 20, strip hole 21, dot groove 22, row hole structure 30, radial inner end starting long strip hole 31, radial middle long strip hole 32, radial end notch groove 33, radial end notch groove 33, spaced row holes 40, radial inner end hole strip 41, radial outer end hole strip 42. DETAILED DESCRIPTION

[0023] A 3D curved backplane structure, see Figure 1-Figure 4 : The back plate 10 is a stainless steel plate body;

[0024] The central area of ​​the back plate 10 is a non-curved area 101, the two long sides 102, the two short sides 103, and the four corners 104 of the back plate 10 are curved areas, the four corners 104 of the back plate 10 are arc structures, the four sides (two long sides 102 + two short sides 103) of the back plate 10 are respectively provided with a plurality of row hole grooves 20, and the positions of the four arc structures of the back plate 10 are respectively provided with a plurality of row hole structures 30 and spaced row holes 40 arranged in sequence along the arc direction;

[0025] Each row of slots 20 is provided with a plurality of slots 21 arranged at intervals in sequence along the length direction of the side, and the intervals between adjacent rows of slots 20 are arranged at the same distance;

[0026] Each group of hole rows 30 includes a radial inner starting long strip hole 31, a radial middle long strip hole 32, and a radial end notch groove 33. The radial end notch groove 33 is a notch structure corresponding to the edge position. Adjacent hole rows 30 also include spaced rows of holes 40. Each group of spaced rows of holes 40 includes a radial inner end hole bar 41 and a radial outer end hole bar 42. Each group of spaced rows of holes 40 is arranged radially from the inside to the outside corresponding to an arc position.

[0027] In a specific embodiment,

[0028] The strip holes of the adjacent strip hole slots 20 of the back plate 10 are arranged in a staggered arrangement structure corresponding to the length area, which ensures that at least one gap is arranged at the position corresponding to the length area of ​​every two adjacent strip hole slots 20, ensuring that there is sufficient curved surface forming space;

[0029] A dotted groove 22 is provided at the starting edge position of one group of the two adjacent groups of strip hole grooves 20 on the short side 103 of the back plate 10 , which is used to indicate that this side is the short side 102 .

[0030] In a specific embodiment, a contoured notch 105 is provided at the top edge of the back plate 10 at a position corresponding to the lens, so as to ensure a reasonable and reliable arrangement of the lens.

[0031] In a specific implementation, the hole arrangement density on the inner side of the radial position of the four arc structures of the back plate 10 is greater than the hole arrangement density on the outer side of the radial position, so as to ensure reliable forming of the curved surface.

[0032] In specific implementation, the hole grooves of adjacent hole rows 30 and spaced hole rows 40 form a staggered arrangement structure corresponding to the radial position area, which ensures that each group of adjacent hole rows 30 and spaced hole rows 40 has at least one notch corresponding to the radial area position, ensuring sufficient curved surface forming space.

[0033] In a specific embodiment, the thickness of the back plate 10 is 50 μm, and the holes and grooves of the arc structure on the four sides and four corners of the back plate 10 are obtained by etching, and then 3D curved surface bending is performed by a mold.

[0034] By performing front-end etching on the back panel, a number of rows of holes are respectively provided on the four sides of the back panel, and a number of rows of hole structures and spaced rows of holes are respectively provided on the four arc structures of the back panel, which are sequentially arranged along the arc direction. This allows the four sides and four corners of the back panel to reliably form 3D curved surfaces of set shapes, making the four sides and four corners of the back panel reliably bendable, thereby improving the aesthetics of the 3D curved screen.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A 3D curved backplane structure, characterized in that: The back panel is a stainless steel plate body; The central area of ​​the back plate is a non-curved area, the four sides and four corners of the back plate are curved areas, the four corners of the back plate are arc structures, the four sides of the back plate are respectively provided with a plurality of row hole grooves, and the positions of the four arc structures of the back plate are respectively provided with a plurality of row hole structures and spaced row holes arranged in sequence along the arc direction; Each row of slots is provided with a plurality of slots arranged at intervals in sequence along the length of the side, and the intervals between adjacent rows of slots are arranged at the same distance; Each group of hole rows includes a radial inner starting long strip hole, a radial middle long strip hole, and a radial end notch groove, wherein the radial end notch groove is a notch structure corresponding to the edge position, and adjacent hole rows also include spaced rows of holes, each group of spaced rows of holes includes a radial inner end hole bar and a radial outer end hole bar, and each group of spaced rows of holes corresponds to an arc position and is arranged radially from the inside to the outside.

2. A 3D curved backplane structure according to claim 1, characterized in that: The strip holes of adjacent strip hole rows of the back plate form a staggered arrangement structure corresponding to the length region, which ensures that at least one gap is arranged at the position corresponding to the length region of every two adjacent strip hole rows.

3. The 3D curved backplane structure according to claim 2, characterized in that: A dotted groove is arranged at the starting edge position of one group of the two adjacent groups of the strip hole grooves on the short side of the back plate, which is used to indicate that this side is the short side.

4. The 3D curved backplane structure according to claim 1, characterized in that: A contoured notch is arranged at the top edge of the back plate at a position corresponding to the lens.

5. The 3D curved backplane structure according to claim 1, characterized in that: The hole arrangement density on the inner side of the radial position of the four arc structures of the back plate is greater than the hole arrangement density on the outer side of the radial position.

6. The 3D curved backplane structure according to claim 5, characterized in that: Adjacent row hole structures and hole slots of spaced row holes form a staggered arrangement structure corresponding to the radial position area, which ensures that each group of adjacent row hole structures and hole slots of spaced row holes has at least one gap corresponding to the radial area position.

7. The 3D curved backplane structure according to claim 1, characterized in that: The holes and grooves of the circular arc structure on the four sides and four corners of the back plate are obtained by etching.

8. The 3D curved backplane structure according to claim 1, characterized in that: The thickness of the back plate is 50 μm.

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