CN216268091U - Curved surface screen equipment of buckling - Google Patents
Curved surface screen equipment of buckling Download PDFInfo
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- CN216268091U CN216268091U CN202120763792.3U CN202120763792U CN216268091U CN 216268091 U CN216268091 U CN 216268091U CN 202120763792 U CN202120763792 U CN 202120763792U CN 216268091 U CN216268091 U CN 216268091U
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Abstract
The utility model provides a curved screen bending device, wherein a screen to be bent comprises a plane area, a bending area connected with the edge of the plane area, and a flexible circuit board connected with the bending area, and the curved screen is obtained after the screen to be bent is bent; curved surface screen equipment of buckling includes: the screen bearing table comprises a first bearing surface which is a plane; the circuit board bearing table moving relative to the screen bearing table is positioned at the outer side of the screen bearing table; the supporting and protecting structure is arranged on the screen bearing table and comprises a first side face and a second side face which are back to back, the first side face is attached to the first bearing face, the second side face bears and fixes the screen to be bent, the second side face at least comprises a curved surface bearing area, and the curved surface bearing area and the bent curved surface of the bent area have the same curvature. The utility model provides a curved surface screen equipment of buckling can solve the screen and have the screen edge to appear the reverse bending phenomenon of notacoria and the bending zone metal wire fracture scheduling problem that leads to when buckling.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a curved surface screen equipment of buckling.
Background
With the popularization of full-screen mobile phones, folding display products develop towards a small radius direction, and the bending radius of the existing folding display screen can reach 3-5 mm. In order to achieve an attractive display effect, the Edge of a display Module (MDL) also needs to be bent synchronously in a 3D shape, that is, the display screen needs to be bent (Pad Bending) to obtain a curved Edge (Edge). Due to the existence of the curved edge, when the screen is placed on a bending device, the Flexible Printed Circuit (FPC) connected to the edge of the screen is reversely bent, so that risks such as metal wire fracture (Crack) and the like occur near a bending area.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a curved screen bending device, which can solve the problems that a bent area metal wire is broken and the like caused by a reverse bending phenomenon of a back film at the edge of a screen when the screen is bent in the related art.
The technical scheme provided by the embodiment of the disclosure is as follows:
the bending equipment for the curved screen is used for bending the screen to be bent, the screen to be bent comprises a plane area, a bending area connected to the edge of the plane area and a flexible circuit board connected to the bending area, and the curved screen is obtained after the screen to be bent is bent; the curved screen bending device comprises:
the screen bearing platform comprises a first bearing surface which is a plane;
the circuit board bearing table can move relative to the screen bearing table and comprises a second bearing surface, and the circuit board bearing table is positioned on the outer side of the screen bearing table;
the screen bearing table comprises a supporting protection structure, the supporting protection structure is arranged on the screen bearing table and comprises a first side face and a second side face which are back to back, the first side face is attached to the first bearing face, the second side face is used for bearing and fixing the screen to be bent, the second side face at least comprises a curved surface bearing area, and the curved surface bearing area is the same as the curved surface curvature of the bent area after bending.
Illustratively, the curved bearing area comprises a first part and a second part, the first part is used for supporting the area to be bent, and the second part is used for supporting the flexible circuit board.
Exemplarily, a binding structure is arranged between the bending region and the flexible circuit board; and the second side surface is provided with an avoiding concave cavity at the position corresponding to the binding structure.
Illustratively, the supporting and protecting structure is made of resin materials.
Illustratively, the support and protection structure is made of polyvinyl chloride material.
Illustratively, the second side face is provided with an adhesive for adhering to or separating from the screen to be bent.
Illustratively, the adhesive includes a reduced-tack adhesive.
Illustratively, the adhesive reducing agent includes at least one of a UV adhesive reducing agent and a thermal adhesive reducing agent.
Illustratively, the second side face further comprises a plane bearing area, and the plane bearing area is used for being attached to the plane area of the screen to be bent.
The beneficial effects brought by the embodiment of the disclosure are as follows:
the curved surface screen equipment of buckling that this disclosed embodiment provided through the Edge (Edge) bending area increase support protection architecture at the screen of waiting to buckle, can provide the support guard action for the bending area at the curved surface screen in-process of buckling, avoids the risk of anti-broken line, protects the bending area simultaneously and avoids receiving the collision in the display module assembly transportation after buckling, promotes its reliability and reliance.
Drawings
FIG. 1 is a schematic structural diagram illustrating a reverse bending phenomenon of a back film when a flexible display module is bent according to a related art;
fig. 2 is a schematic structural diagram of a curved screen bending apparatus provided in an embodiment of the present disclosure when a screen to be bent is bent;
fig. 3 is a schematic structural diagram of a curved-surface screen bending apparatus provided in the embodiment of the present disclosure after bending a screen to be bent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Before a detailed description of the curved panel bending apparatus provided by the embodiments of the present disclosure, the following description of the related art is necessary:
as shown in fig. 1, in the related art, the curved screen module generally includes a flexible panel 1 and a cover plate 2, an Edge (Edge) of the curved screen module is folded outward, and the material of the cover plate 2 of the flexible module is bendable repeatedly and cannot provide support, so that an SUS (stainless steel plate) with a curved surface is used on an inner side of a back film of the flexible panel 1 to fix the appearance of a 3D curved surface of the Edge. When the curved screen is bent, the back film on the FPC side (the side where the flexible circuit board is located) can be bent by 180 degrees and attached to SUS of the curved surface, and a semicircular arch is formed at the edge of the curved surface.
In the related art, the curved screen bending apparatus includes a screen bearing table 4 and a circuit board bearing table 5, but the screen bearing table 4 can only bear a plane area of a screen, and the circuit board bearing table 5 can only bear a flexible circuit board (FPC), so, as shown in fig. 1, a bending area of the screen is unsupported, before the screen is bent, a back film on the FPC side is reversely bent when the screen is placed on the bending apparatus, so that the problem that a metal wire is broken (Crack) due to stress concentration of the bending area (a region in fig. 1 is a reverse bending part) and the like can occur, and meanwhile, because the screen bearing table 4 cannot adsorb the edge region of the screen due to existence of the edge of the screen arc surface, the edge region is easily shaken during bending.
In order to solve the above problem, the embodiment of the present disclosure provides a curved screen bending apparatus, which can solve the problem that a metal wire in a bending area is broken due to a reverse bending phenomenon of a back film at an edge of a screen when the screen is bent in the related art.
As shown in fig. 2, the curved panel bending apparatus provided in some embodiments of the present disclosure is configured to bend a to-be-bent screen 10, where the to-be-bent screen 10 includes a plane area 11, a bending area 12, and a flexible circuit board 13, where the bending area 12 is connected to an edge of the plane area 11, the flexible circuit board 13 is connected to the bending area 12, and the to-be-bent screen 10 is bent to obtain a curved panel.
As shown in fig. 2, a curved screen bending apparatus provided in some embodiments of the present disclosure includes: the screen bearing table 100, the circuit board bearing table 200 and the supporting protection structure 300, wherein the screen bearing table 100 comprises a first bearing surface which is a plane, the circuit board bearing table 200 can move relative to the screen bearing table 100, the circuit board bearing table 200 comprises a second bearing surface, and the circuit board bearing table 200 is positioned at the outer side of the screen bearing table 100; the supporting protection structure 300 is disposed on the screen bearing table 100, the supporting protection structure 300 includes a first side surface 310 and a second side surface 320 which are opposite to each other, the first side surface 310 is attached to the first bearing surface, the second side surface 320 is used for bearing and fixing the screen 10 to be bent, the second side surface 320 at least includes a curved bearing area 321, and the curved bearing area 321 is the same as the curved curvature of the bent screen 12.
The curved surface screen equipment of buckling that this disclosed embodiment provided through the Edge (Edge) bending zone 12 at the screen 10 of waiting to buckle increase support protection architecture 300, for bending zone 12 provides the support guard action in the bending process at the curved surface screen, avoids the risk of the anti broken string that rolls over, simultaneously, protects bending zone 12 and avoids receiving the collision in the display module assembly transportation after buckling, promotes its reliability and reliance.
Specifically, in the curved-surface screen bending apparatus provided in the embodiment of the present disclosure, before the screen 10 to be bent is bent, the circuit board bearing table 200 moves relative to the screen bearing table 100, so that the flexible circuit board 13 is bent to a certain radian position in advance, that is, a predetermined angle between the second bearing surface of the circuit board bearing table 200 and the first bearing surface of the screen bearing table 100 is equal to a curved-surface angle of the curved-surface screen obtained after bending; then, the screen 10 to be bent is placed on the screen bearing table 100 and the circuit board bearing table 200, the flexible circuit board 13 at the edge of the screen 10 to be bent is supported and fixed by the circuit board bearing table 200, and at least the bending area 12 of the screen 10 to be bent is supported and fixed by the supporting and fixing structure, so that the bending area 12 of the whole screen 10 to be bent is kept in a stable state, the screen 10 to be bent is fixed by the screen bearing table 100 and the circuit board bearing table 200, and meanwhile, the back film at one side (namely, the FPC side) where the flexible circuit board 13 of the screen 10 to be bent is located cannot be reversely bent, the risk of line breakage near the bending area 12 is avoided, and the bending process is more stable.
It should be noted that the to-be-bent screen 10 generally includes a display panel 14 and a cover plate 15 attached to one side of the display panel, and the to-be-bent screen is bent in an outward bending manner, that is, toward one side of the display panel away from the cover plate, so that when the to-be-bent screen is bent, the cover plate 15 side of the to-be-bent screen 10 is attached to the second side surface 320 of the supporting protection structure 300, so that the supporting protection structure 300 supports and fixes the to-be-bent screen 10.
In some exemplary embodiments, as shown in fig. 2, the second side surface 320 further includes a planar bearing area 322, and the planar bearing area 322 has the same shape as the planar area 11 of the screen 10 to be bent.
With the above scheme, the supporting and protecting structure 300 may be an integral structure disposed on the first supporting surface of the screen supporting platform 100, and the second side surface 320 may include not only the curved supporting area 321, but also the plane supporting area 322, that is, the supporting and protecting structure 300 may support and protect not only the bending area 12 of the screen 10 to be bent, but also the plane area 11 of the screen 10 to be bent. Thus, the supporting and protecting structure 300 can be integrally fixed on the first carrying surface of the screen carrying platform 100 to support and fix the whole screen 10 to be bent, so that, as shown in fig. 2, the transition between the FPC side curved area and the planar area 11 of the screen 10 to be bent can be well supported by the supporting and protecting structure 300, and is not easy to shake during the bending process.
It is understood that, in practical applications, the supporting and protecting structure 300 may also include only the curved bearing area 321.
Furthermore, in some exemplary embodiments, as shown in fig. 2, the curved bearing area 321 includes a first portion 321a and a second portion 321b, the first portion 321a is used for supporting the area to be bent 12, and the second portion 321b is used for supporting the flexible circuit board 13. By adopting the scheme, because the screen is easy to be reversely bent at the FPC side, the curved bearing area 321 of the supporting and protecting structure 300 can not only support and protect the to-be-bent area 12 of the to-be-bent screen 10, but also support and protect the flexible circuit board 13, so that the bent position can be better supported and protected.
Furthermore, in some exemplary embodiments, as shown in fig. 2, a binding structure 14 is provided between the bending region 12 and the flexible circuit board 13; the second side 320 is provided with an avoidance cavity 330 at a position corresponding to the binding structure 14.
Furthermore, in some exemplary embodiments, the supporting and protecting structure 300 is made of resin material, for example, the supporting and protecting structure 300 is made of polyvinyl chloride material.
Adopt above-mentioned scheme, support protection architecture 300 can choose for use resin class material integrated into one piece, compares in rigidity materials such as metal material, and resin class material is easy shaping, and hardness is less, can avoid treating the screen 10 of buckling and cause the damage.
In addition, in some exemplary embodiments, the second side surface 320 is provided with an adhesive for adhering or separating to or from the screen 10 to be folded. The screen 10 to be bent is fixed by the adhesive, wherein the adhesive may be a subtractive adhesive, for example, at least one of a UV subtractive adhesive and a thermal subtractive adhesive. Thus, after the bending is completed, when the whole machine is assembled, the supporting and protecting structure 300 can be peeled off from the curved screen by means of UV light de-bonding or thermal de-bonding.
In addition, the embodiment of the disclosure also provides a curved screen bending method, and the curved screen bending equipment provided by the embodiment of the disclosure is adopted to bend the screen 10 to be bent; the bending method of the curved screen comprises the following steps:
step S01, controlling the circuit board supporting stage 200 and the screen supporting stage 100 to move relatively, so that a predetermined angle is formed between the supporting surface of the circuit board supporting stage and the first supporting surface of the screen supporting stage 100;
step S02, the screen 10 to be bent is supported on the screen supporting stage 100, wherein the bending region 12 on the screen 10 to be bent is supported and fixed by the second side surface 320 of the supporting protection structure 300, and the flexible circuit board 13 is supported and fixed by the circuit board supporting stage 200;
step S03, controlling the circuit board carrier 200 and the screen carrier 100 to move relatively, so as to bend the bending region 12, and obtaining a curved screen after bending as shown in fig. 3.
In the curved screen bending method provided by the embodiment of the present disclosure, before the screen 10 to be bent is bent, the circuit board bearing table 200 moves relative to the screen bearing table 100, so that the flexible circuit board 13 is bent to a certain radian position in advance, that is, a predetermined angle between the second bearing surface of the circuit board bearing table 200 and the first bearing surface of the screen bearing table 100 is equal to a curved angle of the curved screen obtained after bending; then, the screen 10 to be bent is placed on the screen bearing table 100 and the circuit board bearing table 200, the flexible circuit board 13 at the edge of the screen 10 to be bent is supported and fixed by the circuit board bearing table 200, and at least the bending area 12 of the screen 10 to be bent is supported and fixed by the supporting and fixing structure, so that the bending area 12 of the whole screen 10 to be bent is kept in a stable state, the screen 10 to be bent is fixed by the screen bearing table 100 and the circuit board bearing table 200, and meanwhile, the back film at one side (namely, the FPC side) where the flexible circuit board 13 of the screen 10 to be bent is located cannot be reversely bent, the risk of line breakage near the bending area 12 is avoided, and the bending process is more stable.
In some examples, the second side surface 320 further includes a planar bearing area 322, and the planar bearing area 322 is the same as the planar area 11 of the screen 10 to be bent; in the method, the step S02 specifically includes: the plane area 11 of the screen 10 to be bent is supported and fixed by the plane bearing area 322, and the bending area 12 of the screen 10 to be bent is supported and fixed by the curved bearing area 321.
For example, the second side surface 320 is provided with an adhesive for adhering to or separating from the screen 10 to be bent, and the adhesive includes a reduced adhesive; the method also comprises the following steps: during and after the bending process, the screen 10 to be bent is separated from the supporting and protecting structure 300 by UV irradiation or thermal de-bonding.
The following points need to be explained:
(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.
(2) For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.
(3) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.
The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be determined by the scope of the claims.
Claims (9)
1. The curved screen bending equipment is characterized by being used for bending a screen to be bent, wherein the screen to be bent comprises a plane area, a bending area connected to the edge of the plane area and a flexible circuit board connected to the bending area, and the curved screen is obtained after the screen to be bent is bent; the curved screen bending device comprises:
the screen bearing platform comprises a first bearing surface which is a plane;
the circuit board bearing table can move relative to the screen bearing table and comprises a second bearing surface, and the circuit board bearing table is positioned on the outer side of the screen bearing table;
the screen bearing table comprises a supporting protection structure, the supporting protection structure is arranged on the screen bearing table and comprises a first side face and a second side face which are back to back, the first side face is attached to the first bearing face, the second side face is used for bearing and fixing the screen to be bent, the second side face at least comprises a curved surface bearing area, and the curved surface bearing area is the same as the curved surface curvature of the bent area after bending.
2. A curved screen bending device according to claim 1,
the curved surface bearing area comprises a first part and a second part, the first part is used for supporting the area to be bent, and the second part is used for supporting the flexible circuit board.
3. A curved screen bending device according to claim 1,
a binding structure is arranged between the bending area and the flexible circuit board; and the second side surface is provided with an avoiding concave cavity at the position corresponding to the binding structure.
4. A curved screen bending device according to claim 1,
the supporting and protecting structure is made of resin materials.
5. Curved screen bending apparatus according to claim 4,
the supporting and protecting structure is made of polyvinyl chloride materials.
6. A curved screen bending device according to claim 1,
and the second side face is provided with bonding glue used for being adhered to or separated from the screen to be bent.
7. A curved screen bending device according to claim 6,
the adhesive glue comprises a reduced-adhesion glue.
8. Curved screen bending apparatus according to claim 7,
the adhesive reducing agent comprises UV adhesive reducing agent or thermal adhesive reducing agent.
9. A curved screen bending device according to claim 1,
the second side surface further comprises a plane bearing area, and the plane bearing area is attached to the plane area of the screen to be bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120763792.3U CN216268091U (en) | 2021-04-14 | 2021-04-14 | Curved surface screen equipment of buckling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120763792.3U CN216268091U (en) | 2021-04-14 | 2021-04-14 | Curved surface screen equipment of buckling |
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| Publication Number | Publication Date |
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| CN216268091U true CN216268091U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120763792.3U Active CN216268091U (en) | 2021-04-14 | 2021-04-14 | Curved surface screen equipment of buckling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112959804A (en) * | 2021-04-14 | 2021-06-15 | 京东方科技集团股份有限公司 | Curved screen bending equipment and curved screen bending method |
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2021
- 2021-04-14 CN CN202120763792.3U patent/CN216268091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112959804A (en) * | 2021-04-14 | 2021-06-15 | 京东方科技集团股份有限公司 | Curved screen bending equipment and curved screen bending method |
| CN112959804B (en) * | 2021-04-14 | 2024-04-09 | 京东方科技集团股份有限公司 | Curved surface screen bending equipment and curved surface screen bending method |
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