CN111261046B - Laminating method and laminating device - Google Patents
Laminating method and laminating device Download PDFInfo
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- CN111261046B CN111261046B CN202010074099.5A CN202010074099A CN111261046B CN 111261046 B CN111261046 B CN 111261046B CN 202010074099 A CN202010074099 A CN 202010074099A CN 111261046 B CN111261046 B CN 111261046B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The invention discloses a laminating method for laminating a flexible display panel and a cover plate, which comprises the following steps: disposing a cover plate on one side of the flexible display panel; carrying out plane fitting on the flexible display panel and the cover plate; softening the preset position of the cover plate; arranging a first jig on one side of the flexible display panel, which is far away from the cover plate, and arranging a second jig on one side of the cover plate, which is far away from the flexible display panel, wherein the projection of the first jig on the flexible display panel corresponds to the projection of the second jig on the cover plate, and a curved surface structure is formed on one side of the first jig; and driving the second jig to bend around the softened preset position in the direction close to the first jig so as to control the cover plate to form a bending area matched with the curved surface structure, so that the first jig is accommodated in the bending area. The invention improves the yield and the display effect of the product.
Description
Technical Field
The invention relates to the technical field of display. And more particularly, to a bonding method and a bonding apparatus.
Background
Along with scientific and technological development, the curved surface screen receives people's favor more and more, and the curved surface screen generally includes apron and the flexible display panel who laminates mutually with this apron, and wherein, the apron can be the apron of both ends inside buckling, and flexible display panel then laminates the inboard at this apron.
Among the correlation technique, one side of flexible display panel and apron all is formed with the district of buckling in advance, when laminating flexible display panel and apron, will set up the inboard at the apron with flexible display panel earlier usually, then adopt vacuum rigging machine to take out for cavity between this flexible display panel and the apron, realize the laminating of this flexible display panel and apron, wherein, at flexible display panel and apron laminating in-process, generally adopt following two kinds of modes to go on:
(1) as shown in fig. 1, the roller 400 is used to roll along the surface of the flexible display panel 100 (in the example of fig. 1, the roller 400 rolls along the X direction) to compact the space between the flexible display panel 100 and the cover 200, but the size of the internal space formed by the bending region 201 of the flexible display panel 100 is narrow, so that the diameter of the roller 400 is limited to be small, the pressure of the roller 400 is insufficient, and a situation that the compaction cannot be performed locally may occur;
(2) as shown in fig. 2, the bonding is performed by a copying jig, for example: the slider 500 slides on the surface of the flexible display panel 100 to compact the bending region 201 of the flexible display panel 100 (in the example of fig. 2, the slider 500 slides along the X direction), and the supporting block 600 matched with the curved surface of the flexible display panel 100 is used to compact the non-bending region of the flexible display panel (in the example of fig. 2, the supporting block 600 compacts the flexible display panel 100 along the Y direction), but the mechanism is complicated in design and difficult to control in the process of attaching, and the slider 500 easily causes problems such as cracks in the flexible display panel 100 and bubbles between the flexible display panel 100 and the cover plate 200 in the sliding process, thereby affecting the yield and display effect of the curved panel.
Disclosure of Invention
In order to solve the technical problems in the background art, a first aspect of the present invention provides a bonding method for bonding a flexible display panel to a cover plate, including the steps of:
disposing the cover plate on one side of the flexible display panel;
carrying out plane fitting on the flexible display panel and the cover plate;
softening the preset position of the cover plate;
arranging a first jig on one side of the flexible display panel, which is far away from the cover plate, and arranging a second jig on one side of the cover plate, which is far away from the flexible display panel, wherein the projection of the first jig on the flexible display panel corresponds to the projection of the second jig on the cover plate, and a curved surface structure is formed on one side of the first jig;
and driving the second jig to bend around the softened preset position in the direction close to the first jig so as to control the cover plate to form a bending area matched with the curved surface structure, so that the first jig is accommodated in the bending area.
Optionally, the material of the cover plate includes a thermoplastic material, and the softening treatment at the preset position of the cover plate includes:
and softening the preset position of the cover plate in a heating mode.
Optionally, the performing plane attachment on the flexible display panel and the cover plate includes:
and rolling along one side of the flexible display panel, which is deviated from the cover plate, by adopting a roller to perform plane fitting between the flexible display panel and the cover plate.
Optionally, before the step of disposing the cover plate on one side of the flexible display panel, the method further includes:
and arranging a heat dissipation layer on one side of the flexible display panel, wherein the cover plate is arranged on one side of the flexible display panel, which is deviated from the heat dissipation layer.
Optionally, the method further comprises:
and rolling along one side of the flexible display panel departing from the heat dissipation layer by using a roller to perform plane fitting between the flexible display panel and the heat dissipation layer.
The present invention in a second aspect provides a bonding apparatus for bonding a flexible display panel to a cover plate, including:
the first jig is arranged on one side, away from the cover plate, of the flexible display panel, and a curved surface structure is formed on one side of the first jig;
the second jig is arranged on one side, away from the flexible display panel, of the cover plate, and the projection of the first jig on the flexible display panel corresponds to the projection of the second jig on the cover plate;
when the cover plate is arranged on one side of the flexible display panel and the cover plate are subjected to plane fitting, the second jig is used for bending the cover plate to a direction close to the first jig around the preset position of the softened cover plate so as to control the cover plate to form a bending area matched with the curved surface structure, and the first jig is accommodated in the bending area.
Optionally, softening treatment is performed on the preset position of the cover plate in a heating manner.
Optionally, the method further comprises:
a roller;
the roller is used for rolling along one side of the flexible display panel, which is far away from the cover plate, so that the flexible display panel and the cover plate are subjected to plane fitting.
Optionally, one side of the flexible display panel is further provided with a heat dissipation layer, wherein the cover plate is disposed on a side of the flexible display panel away from the heat dissipation layer.
Optionally, the method further comprises:
a roller;
the roller is used for rolling along one side of the flexible display panel, which is far away from the heat dissipation layer, so that the flexible display panel and the heat dissipation layer are subjected to plane fitting.
The invention has the following beneficial effects:
in the technical scheme of the invention, in the specific implementation, the flat surface bonding between the flexible display panel and the cover plate is realized by the flat surface bonding mode, then the corresponding softening treatment is carried out on the preset position of the cover plate, the first jig and the second jig are respectively arranged on two sides of the display module consisting of the cover plate and the flexible display panel, and the second jig is driven to bend around the softened preset position in the direction close to the first jig, so that the cover plate forms a corresponding bending area to complete the whole bonding process of the cover plate and the flexible display panel, the bonding process is simplified in control, the engineering and cost reduction are saved, the problem of bubbles and cracks generated in the bonding process in the prior art is solved, and the yield and the display effect of the product are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating a prior art method for attaching a cover plate and a flexible display panel by using rollers;
fig. 2 is a diagram illustrating a prior art method for attaching a cover plate and a flexible display panel by using a profiling fixture;
FIG. 3 is a flow chart illustrating a method of applying a coating in accordance with an embodiment of the present invention;
fig. 4-6 show schematic diagrams corresponding to steps in the flowchart shown in fig. 1.
In the figure: 100. a flexible display panel; 200. a cover plate; 201. a bending zone; 300. a carrier film; 400. a roller; 500. a slider; 600. a support block; 700. a first jig; 701. a curved surface structure; 800. a second jig; 900. a heating device.
Detailed Description
Exemplary embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. The same reference numerals denote the same or similar elements, components, or parts in the drawings, and thus their repetitive description will be omitted.
Features, structures, characteristics or other details described in a particular embodiment do not preclude the fact that the features, structures, characteristics or other details may be combined in a suitable manner in one or more other embodiments in accordance with the technical idea of the invention.
In describing particular embodiments, the present invention has been described with reference to features, structures, characteristics or other details that are within the purview of one skilled in the art to provide a thorough understanding of the embodiments. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific features, structures, characteristics, or other details.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, or sections, these terms should not be construed as limiting. These phrases are used to distinguish one from another. For example, a first device may also be referred to as a second device without departing from the spirit of the present invention.
The term "and/or" and/or "includes any and all combinations of one or more of the associated listed items.
One embodiment of the present invention provides a bonding method for bonding a flexible display panel 100 to a cover plate 200, as shown in fig. 3, the bonding method including the steps of:
s1, disposing the cover plate 200 on one side of the flexible display panel 100;
s2, performing planar bonding on the flexible display panel 100 and the cover plate 200;
s3, softening the preset position of the cover plate 200;
s4, disposing a first fixture 700 on a side of the flexible display panel 100 away from the cover plate 200, disposing a second fixture 800 on a side of the cover plate 200 away from the flexible display panel 100, wherein a projection of the first fixture 700 on the flexible display panel 100 corresponds to a projection of the second fixture 800 on the cover plate 200, and a curved surface structure 701 is formed on one side of the first fixture 700;
s5, the second fixture 800 is driven to bend around the softened predetermined position in a direction close to the first fixture 700, so as to control the cover plate 200 to form a bending region 201 matching with the curved surface structure 701, such that the first fixture 700 is accommodated in the bending region 201.
Specifically, in S1, the cover sheet 200 is disposed on one side of the flexible display panel 100, and then in S2, the flexible display panel 100 and the cover sheet 200 are subjected to plane bonding, and before the plane bonding, an adhesive may be disposed between the cover sheet 200 and the flexible display panel 100, for example: and (3) laminating the adhesive so that the flexible display panel 100 and the cover plate 200 can be fixed after planar lamination.
Next, in this step, the method of plane lamination may adopt a method of plane lamination using the roller 400 in the prior art or other methods of plane lamination, and in one example, the process of plane lamination using the roller 400 mainly includes: the roller 400 is driven to roll along a side surface of the flexible display panel 100 away from the cover plate 200 (in the example of fig. 4, the roller 400 rolls along the X direction), so that the roller 400 simultaneously presses the flexible display panel 100 and the cover plate 200, and thus the planar bonding between the flexible display panel 100 and the cover plate 200 is realized, in the example of fig. 4, since the flexible display panel 100 and one side of the cover plate 200 are bent in advance, in the process of using the roller 400 to realize the planar bonding between the flexible display panel 100 and the cover plate 200, the size of the roller 400 needs to be set to be matched with the position of the bent setting, so that the roller 400 can be ensured to roll at the part of the bent setting, and the overall planar bonding between the flexible display panel 100 and the cover plate 200 is realized.
Here, in order to prevent the roller 400 from damaging the flexible display panel 100 to some extent due to excessive friction during the rolling process of the surface of the flexible display panel 100, a carrier film 300 (the carrier film 300 is not shown in fig. 4-6) may be disposed on a side of the flexible display panel 100 facing away from the cover plate 200 in advance during the planar bonding process, and the roller 400 rolls on the carrier film 300 to apply a certain pressure to the flexible display panel 100 and the cover plate 200, so as to complete the planar bonding between the flexible display panel 100 and the cover plate 200.
At S3, as shown in fig. 5, the preset position of the curved inner cover 200 is softened to make the softened portion bend under the driving of an external force, the preset position on the cover 200 can be determined according to the actual process, the present application does not limit the specific orientation of the preset position, in this step, the method of softening the preset position (in fig. 5, the preset position is the position a on the cover 200) may include heating or other softening methods, in one example, when the preset position of the cover 200 is softened by heating, a tool capable of heating, such as an alcohol lamp or a heating rod, may be used, and the material of the cover 200 is set to be a thermoplastic material, for example, the cover 200 may be integrally molded by plastic, although the material of the cover 200 may also be made of other thermoplastic materials, this is not limitative.
The preset position on the cover plate 200 can be softened after being heated, so that the cover plate 200 can be driven to bend around the softened position to form the corresponding bending area 201, and the softened position can be automatically fixed when being cooled because the cover plate 200 is made of thermoplastic material.
In S4, the first fixture 700 is disposed on one side of the flexible display panel 100 away from the cover plate 200, and the second fixture 800 is correspondingly disposed on one side of the cover plate 200 away from the flexible display panel 100, a projection of the first fixture 700 on the flexible display panel 100 corresponds to a projection of the second fixture 800 on the cover plate 200, and a curved surface structure 701 is further formed on one side of the first fixture 700, that is, if the flexible display panel 100 and the cover plate 200 are regarded as a display module, the first fixture 700 and the second fixture 800 are respectively symmetrically disposed on two sides of the display module.
Since the preset position of the cover plate 200 is softened in S3, in S6, as shown in fig. 6, the second fixture 800 can be driven to bend around the softened preset position in a direction close to the first fixture 700, so as to form a corresponding bending region 201, and the first fixture 700 is accommodated in the bending region 201, it should be noted that, since the flexible display panel 100 itself has a certain flexibility characteristic, while the cover plate 200 forms the bending region 201, the flexible display panel 100 can be correspondingly driven to form the same bending region 201 as the cover plate 200, further, in the example of fig. 5, since the curved surface structure 701 is formed on one side of the first fixture 700, and the side where the curved surface structure 701 is disposed is close to the softened preset position, when the second fixture 800 is driven to bend in a direction close to the first fixture 700, the bending region 201 formed by the cover plate 200 is matched with the curved surface structure 701, and the bending region 201 of the cover plate 200 and the flexible display panel 100 are correspondingly attached through the matching of the first jig 700 and the second jig 800, and after the attachment is completed, the first jig 700 and the second jig 800 are removed, so that the attached product can be obtained.
In summary, in the specific implementation of the attaching method according to this embodiment, first, a planar attachment between the flexible display panel 100 and the cover plate 200 is implemented in a planar attachment manner, then, a corresponding softening treatment is performed on a preset position of the cover plate 200, the first fixture 700 and the second fixture 800 are respectively disposed on two sides of the display module formed by the cover plate 200 and the flexible display panel 100, and the second fixture 800 is driven to bend around the softened preset position in a direction close to the first fixture 700, so that the cover plate 200 forms the corresponding bending region 201 to complete the whole attaching process of the cover plate 200 and the flexible display panel 100, which simplifies the control of the attaching process, saves engineering and cost, solves the problem of bubbles and cracks generated in the attaching process in the prior art, and improves the yield and the display effect of the product.
In some optional implementations of this embodiment, before the step of disposing the cover plate 200 on one side of the flexible display panel 100, the method further includes:
a heat dissipation layer is disposed on one side of the flexible display panel 100, wherein the cover plate 200 is disposed on one side of the flexible display panel 100 facing away from the heat dissipation layer.
Specifically, the heat dissipation layer disposed on one side of the flexible display panel 100 can correspondingly solve the problem of heat dissipation of the display panel.
Further, the method also comprises the following steps:
a roller 400 is adopted to roll along the side of the flexible display panel 100 departing from the heat dissipation layer, so as to perform planar bonding between the flexible display panel 100 and the heat dissipation layer.
Specifically, in order to achieve the adhesion between the heat dissipation layer and the flexible display panel 100, the roller 400 may be used for planar adhesion, and the specific process is as follows: the roller 400 is used to roll along the side of the flexible display panel 100 away from the heat dissipation layer, so that the roller 400 applies corresponding pressure to the flexible display panel 100 and the heat dissipation layer at the same time, thereby achieving planar adhesion between the flexible display panel 100 and the heat dissipation layer.
Another embodiment of the present invention provides a bonding apparatus for bonding a flexible display panel 100 to a cover plate 200, including:
the first jig is arranged on one side, away from the cover plate 200, of the flexible display panel 100, and a curved surface structure 701 is formed on one side of the first jig 700;
the second jig is arranged on one side, away from the flexible display panel 100, of the cover plate 200, and the projection of the first jig on the flexible display panel 100 corresponds to the projection of the second jig 800 on the cover plate 200;
when the cover plate 200 is disposed on one side of the flexible display panel 100 and the cover plate 200 are subjected to planar bonding, the second jig is used to bend around the softened preset position of the cover plate 200 in a direction close to the first jig 700, so as to control the cover plate 200 to form a bending area 201 matched with the curved surface structure 701, and the first jig 700 is accommodated in the bending area 201.
In some optional implementations of this embodiment, a softening process is performed on a preset position of the cover plate 200 by heating.
In some optional implementations of this embodiment, the method further includes:
a roller 400;
the roller 400 is used for rolling along a side of the flexible display panel 100 facing away from the cover plate 200 to perform a planar attachment between the flexible display panel 100 and the cover plate 200.
In some optional implementations of this embodiment, a heat dissipation layer is further disposed on one side of the flexible display panel 100, wherein the cover plate 200 is disposed on a side of the flexible display panel 100 facing away from the heat dissipation layer.
In some optional implementations of this embodiment, the method further includes:
a roller 400;
the roller 400 is used to roll along a side of the flexible display panel 100 facing away from the heat dissipation layer to perform a planar attachment between the flexible display panel 100 and the heat dissipation layer.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (10)
1. A laminating method is used for laminating a flexible display panel and a cover plate, and is characterized by comprising the following steps:
disposing the cover plate on one side of the flexible display panel;
carrying out plane fitting on the flexible display panel and the cover plate;
softening the preset position of the cover plate;
arranging a first jig on one side of the flexible display panel, which is far away from the cover plate, and arranging a second jig on one side of the cover plate, which is far away from the flexible display panel, wherein the projection of the first jig on the flexible display panel corresponds to the projection of the second jig on the cover plate, and a curved surface structure is formed on one side of the first jig;
and driving the second jig to bend around the softened preset position in the direction close to the first jig so as to control the cover plate to form a bending area matched with the curved surface structure, so that the first jig is accommodated in the bending area.
2. The method of claim 1, wherein the material of the cover plate comprises a thermoplastic material, and the softening at the predetermined position of the cover plate comprises:
and softening the preset position of the cover plate in a heating mode.
3. The method of claim 1, wherein the planarly attaching the flexible display panel and the cover sheet comprises:
and rolling along one side of the flexible display panel, which is deviated from the cover plate, by adopting a roller to perform plane fitting between the flexible display panel and the cover plate.
4. The method of claim 1, further comprising, prior to the step of disposing the cover sheet on one side of the flexible display panel:
and arranging a heat dissipation layer on one side of the flexible display panel, wherein the cover plate is arranged on one side of the flexible display panel, which is deviated from the heat dissipation layer.
5. The method of claim 4, further comprising:
and rolling along one side of the flexible display panel departing from the heat dissipation layer by using a roller to perform plane fitting between the flexible display panel and the heat dissipation layer.
6. The utility model provides a laminating device for with flexible display panel and apron laminating, its characterized in that includes:
the first jig is arranged on one side, away from the cover plate, of the flexible display panel, and a curved surface structure is formed on one side of the first jig;
the second jig is arranged on one side, away from the flexible display panel, of the cover plate, and the projection of the first jig on the flexible display panel corresponds to the projection of the second jig on the cover plate;
when the cover plate is arranged on one side of the flexible display panel and the cover plate are subjected to plane fitting, the second jig is used for bending around the preset position of the softened cover plate in the direction close to the first jig so as to control the cover plate to form a bending area matched with the curved surface structure, and the first jig is accommodated in the bending area.
7. The laminating device of claim 6,
and softening the preset position of the cover plate in a heating mode.
8. The laminating device of claim 6, further comprising:
a roller;
the roller is used for rolling along one side of the flexible display panel, which is far away from the cover plate, so that the flexible display panel and the cover plate are subjected to plane fitting.
9. The laminating device of claim 6,
one side of the flexible display panel is also provided with a heat dissipation layer, wherein the cover plate is arranged on one side of the flexible display panel departing from the heat dissipation layer.
10. The laminating device of claim 9, further comprising:
a roller;
the roller is used for rolling along one side of the flexible display panel, which is far away from the heat dissipation layer, so that the flexible display panel and the heat dissipation layer are subjected to plane fitting.
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| CN111816063B (en) * | 2020-08-10 | 2022-09-16 | 京东方科技集团股份有限公司 | Pressing device, pressing jig and preparation method of curved surface display panel |
| CN114078366A (en) * | 2020-08-19 | 2022-02-22 | Oppo广东移动通信有限公司 | Attaching jig and attaching method for display screen assembly |
| CN112838182B (en) * | 2021-01-22 | 2023-05-19 | 京东方科技集团股份有限公司 | Bonding jig, bonding device and bonding method |
| CN112885238B (en) * | 2021-02-03 | 2022-12-23 | 京东方科技集团股份有限公司 | Attaching jig, attaching device and attaching method |
| CN113112918B (en) * | 2021-04-09 | 2024-05-24 | 京东方科技集团股份有限公司 | Display module, manufacturing method thereof, flexible display panel and display device |
| CN113035084B (en) * | 2021-04-09 | 2022-12-30 | 成都京东方光电科技有限公司 | Profiling laminating device, profiling laminating method, display module and display device |
| CN114093263B (en) * | 2021-11-19 | 2023-12-19 | 云谷（固安）科技有限公司 | Bonding device and bonding method |
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