CN114267254A - Display module, manufacturing method thereof and display device - Google Patents
Display module, manufacturing method thereof and display device Download PDFInfo
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- CN114267254A CN114267254A CN202111636826.3A CN202111636826A CN114267254A CN 114267254 A CN114267254 A CN 114267254A CN 202111636826 A CN202111636826 A CN 202111636826A CN 114267254 A CN114267254 A CN 114267254A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 157
- 238000005452 bending Methods 0.000 claims abstract description 76
- 239000012790 adhesive layer Substances 0.000 claims abstract description 70
- 238000004806 packaging method and process Methods 0.000 claims abstract description 47
- 238000005538 encapsulation Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000002352 surface water Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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Abstract
The invention provides a display module, a manufacturing method thereof and a display device, wherein an anti-sticking layer is prepared on one side of a packaging adhesive layer, which is far away from a bending part, wherein the attaching layer covers a display area and extends to cover at least part of the anti-sticking layer, even if the attaching layer is adhered between one side of the anti-sticking layer, which is far away from the display area, and the packaging adhesive layer, because the anti-sticking layer is present, the adhesion area between the attaching layer and the packaging adhesive layer is reduced, the pulling related force of the attaching layer to the bending part can be further reduced, the conditions of abnormity and cracks when the bending part is bent are improved, the breakage rate when the display module is prepared is reduced, and the yield of the display module is ensured to be higher.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module, a manufacturing method thereof and a display device.
Background
In the information age, display devices are becoming more and more important as one of the most important carriers of information in people's work and life. Display modules have been widely used in various electronic products as one of the important components of display devices, and the design of narrow-bezel and ultra-thin modules is becoming more and more popular among terminal manufacturers and consumers. Terminal consumers are increasingly demanding on the frame size of the display module and the thickness of the display module, and how to design a module structure with narrow frame and ultrathin thickness is a problem to be solved urgently. The narrow frame scheme is realized by mainly bending the binding region so that the driving chip is bent to the back of the display module. However, in the existing manufacturing process, when the bonding region is bent, bending abnormality and cracks often occur, which results in a low yield of the display module.
Disclosure of Invention
In view of this, the invention provides a display module, a manufacturing method thereof and a display device, which effectively solve the technical problems in the prior art, reduce the bending abnormity and crack conditions during the preparation of the display module, and ensure that the yield of the display module is high.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a display module, comprising:
the display panel comprises a display area and a binding area positioned on one side of the display area, wherein the binding area comprises a bending part bent towards one side of the display surface departing from the display panel;
the packaging adhesive layer covers the surface of the bent part on one side of the display surface;
the anti-sticking layer is positioned on one side, away from the bending part, of the packaging adhesive layer, and the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer;
the adhesion layer is positioned on one side of the anti-sticking layer, which faces away from the display panel, covers the display area and extends to cover at least part of the anti-sticking layer;
and the cover plate is positioned on one side of the attaching layer, which deviates from the display panel.
Optionally, the surface water drop angle of the anti-sticking layer is greater than or equal to 100 °;
and/or the surface peeling force of the release layer is less than or equal to 10 gf/inch.
Optionally, the anti-sticking layer is made of oil or hydrophobic material.
Optionally, the anti-sticking layer is made of silicone oil, an organic fluorine material or PEDOT.
Optionally, the display module includes a polarizer located on a surface of one side of the display surface of the display panel;
the distance between the anti-sticking layer and the polaroid is larger than or equal to 0.25 mm.
Optionally, the thickness of the release layer is in the range of 5-15 μm.
Optionally, the attachment layer covers a part of the anti-sticking layer, wherein an edge line of the anti-sticking layer on a side away from the display area is located within a bending center line of the bending portion.
Correspondingly, the invention also provides a manufacturing method of the display module, which is used for manufacturing the display module and comprises the following steps:
providing the display panel, wherein the display panel comprises a display area and a binding area positioned on one side of the display area, and the binding area comprises a bending part;
forming the packaging adhesive layer covering the bent part on the surface of one side of the display surface;
forming the anti-sticking layer on one side of the packaging adhesive layer, which is far away from the bending part, wherein the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer;
the cover plate is attached to one side of the display surface of the display panel by the attaching layer, and the attaching layer covers the display surface and extends to cover at least part of the anti-sticking layer;
and bending the bending part towards one side of the display surface departing from the display panel.
Optionally, forming the anti-sticking layer on a side of the encapsulation adhesive layer away from the bending portion includes:
and forming the anti-sticking layer on one side of the packaging adhesive layer, which is deviated from the bending part, by adopting a coating mode.
Correspondingly, the invention further provides a display device which comprises the display module.
Compared with the prior art, the technical scheme provided by the invention at least has the following advantages:
the invention provides a display module, a manufacturing method thereof and a display device, wherein the display module comprises: the display panel comprises a display area and a binding area positioned on one side of the display area, wherein the binding area comprises a bending part bent towards one side of the display surface departing from the display panel; the packaging adhesive layer covers the surface of the bent part on one side of the display surface; the anti-sticking layer is positioned on one side, away from the bending part, of the packaging adhesive layer, and the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer; the adhesion layer is positioned on one side of the anti-sticking layer, which faces away from the display panel, covers the display area and extends to cover at least part of the anti-sticking layer; and the cover plate is positioned on one side of the attaching layer, which deviates from the display panel.
According to the technical scheme provided by the invention, the anti-sticking layer is prepared on the side, away from the bending part, of the packaging adhesive layer, wherein the attaching layer covers the display area and extends to cover at least part of the anti-sticking layer, even if the attaching layer is adhered between the side, away from the display area, of the anti-sticking layer and the packaging adhesive layer, the adhesion area between the attaching layer and the packaging adhesive layer is reduced due to the anti-sticking layer, so that the pulling related force of the attaching layer on the bending part can be reduced, the conditions of abnormity and cracks when the bending part is bent are improved, the breakage rate when the display module is prepared is reduced, and the yield of the display module is ensured to be higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display panel after a bending portion is unfolded according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for manufacturing a display module according to an embodiment of the present invention;
FIGS. 7-11 are schematic views of corresponding structures of the steps in FIG. 6;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background, display modules have been widely used in various electronic products as one of the important components of display devices, and the design of narrow-bezel and ultra-thin modules is becoming more and more popular among terminal manufacturers and consumers. Terminal consumers are increasingly demanding on the frame size of the display module and the thickness of the display module, and how to design a module structure with narrow frame and ultrathin thickness is a problem to be solved urgently. The narrow frame scheme is realized by mainly bending the binding region so that the driving chip is bent to the back of the display module. However, in the existing manufacturing process, when the bonding region is bent, bending abnormality and cracks often occur, which results in a low yield of the display module.
Based on this, the embodiment of the invention provides a display module, a manufacturing method thereof and a display device, which effectively solve the technical problems in the prior art, reduce the bending abnormity and crack conditions during the preparation of the display module and ensure that the yield of the display module is high.
To achieve the above object, the technical solutions provided by the embodiments of the present invention are described in detail below, specifically with reference to fig. 1 to 12.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a display panel after a bent portion is unfolded according to an embodiment of the present invention, where the display module includes:
the display panel 100 includes a display area AA and a binding area BA located on one side of the display area AA, where the binding area BA includes a bending portion 110 bent toward one side of the display surface 101 deviating from the display panel 100.
And the packaging adhesive layer 200 covers the surface of the bending part 110 on one side of the display surface 101.
The anti-sticking layer 300 is located on a side of the encapsulation adhesive layer 200 departing from the bending part 110, and the surface energy of the anti-sticking layer 300 is less than that of the encapsulation adhesive layer 200.
An adhesive layer 400 located on a side of the anti-adhesion layer 300 facing away from the display panel 100, covering the display area AA, and extending to cover at least a portion of the anti-adhesion layer 300.
And the cover plate 500 is positioned on the side of the attachment layer 400 facing away from the display panel 100.
In an embodiment of the invention, the display panel 100 provided by the invention can be a self-luminous display panel. And, the binding area BA provided by the present invention further includes a binding portion 120 located on a side of the bending portion 110 away from the display area AA. The display module further includes a Super Clean Foam (SCF) layer 600 and a driver chip 700 on a side of the display panel 100 away from the display surface 101, wherein the bonding portion 120 is bonded to the driver chip 700.
According to the technical scheme provided by the embodiment of the invention, the anti-sticking layer is prepared on the side, away from the bending part, of the packaging adhesive layer, wherein the attaching layer covers the display area and extends to cover at least part of the anti-sticking layer, even if the attaching layer is adhered between the side, away from the display area, of the anti-sticking layer and the packaging adhesive layer, because the anti-sticking layer is present, the adhesion area between the attaching layer and the packaging adhesive layer is reduced, the pulling related force of the attaching layer on the bending part can be further reduced, the conditions of abnormity and cracks when the bending part is bent are improved, the breakage rate when the display module is prepared is reduced, and the yield of the display module is ensured to be higher.
Referring to fig. 1 and fig. 2, the encapsulation adhesive layer 200 according to the embodiment of the invention covers the bending portion 110, wherein the encapsulation adhesive layer 200 may be a UV adhesive layer (ultraviolet curing adhesive layer), and the encapsulation adhesive layer 200 is prepared on the surface of the bending portion 110, so that the bending performance of the bending portion 110 can be improved, and the bending of the bending portion 110 into an arc shape is facilitated.
With reference to fig. 1 and fig. 2, the anti-adhesion layer 300 provided by the present invention is disposed on a surface of the encapsulation adhesive layer 200 away from the bending portion 110, and an extending direction of the anti-adhesion layer 300 is the same as an extending direction of the encapsulation adhesive layer 200, and is an extending direction of a center line of the bending portion. Furthermore, by forming the anti-sticking layer 300 on the surface of the packaging adhesive layer 200, and the surface energy of the anti-sticking layer 300 is less than that of the packaging layer 200, it can be ensured that the packaging adhesive layer 200 and the attaching layer 400 are in a low surface energy state at the anti-sticking layer 300 to reduce the adhesiveness, even if the attaching layer 400 overflows to cover more areas of the anti-sticking layer 300, but because of the low surface energy characteristic of the anti-sticking layer 300, the adhesion area of the packaging adhesive layer 200 and the attaching layer 400 is still reduced, the purpose of reducing the corresponding pulling force of the attaching layer 400 on the bent part 110 is achieved, the influence of the attaching layer 400 on the bent part 110 during bending is reduced, and the process yield is ensured to be high.
In one embodiment of the present invention, the surface water drop angle of the release layer 300 provided by the present invention is greater than or equal to 100 °; and/or, the surface peel force of the release layer 300 is less than or equal to 10 gf/inch. The anti-sticking layer 300 provided in the embodiment of the present invention may be made of oil or hydrophobic material. Specifically, the material of the anti-adhesion layer 300 provided by the embodiment of the present invention includes a material that is not easily peeled off, such as silicone oil, an organic fluorine material, or PEDOT (polyethylene dioxythiophene).
Alternatively, the thickness of the anti-adhesion layer 300 provided by the embodiment of the present invention may be in a range of 5 to 15 μm, inclusive. It is preferable that the thickness of the release layer 300 may be 10 μm, and the thickness of the release layer 300 is optimized to prevent it from being peeled off due to being too thin, and also to prevent it from being too thick to affect the bending of the bending portion 110.
Moreover, the attachment layer 400 provided in the embodiment of the present invention may be an OCA optical adhesive layer, and the present invention is not limited thereto. When pasting between apron 500 and display panel 100 through attached layer 400, the condition that overflows can appear to the material of attached layer 400, consequently, set up an antiseized layer 300 in surface one side of encapsulation glue film 200, can reduce the adhesion area between attached layer 400 and the encapsulation glue film 200, reduce attached layer 400 and to the corresponding power of pulling of kink 110 department, reduce the influence when attached layer 400 buckles kink 110, guarantee that the processing procedure yield is high.
Referring to fig. 3, a schematic structural diagram of another display module according to an embodiment of the present invention is shown, wherein the cover plate 500 according to the embodiment of the present invention may be a curved cover plate. That is, the cover plate 500 includes a planar area 510 and a curved frame area 520 located at the periphery of the planar area 510, wherein the curved frame area 520 is bent toward the side of the display panel 100.
The curved cover plate 500 according to the embodiment of the present invention is curved at the frame, so that the adhesive layer 400 is more easily extruded and overflowed at the curved portion. Therefore, the anti-sticking layer 300 is disposed on the surface of the packaging adhesive layer 200 according to the embodiment of the present invention, so that the adhesion degree between the adhesive layer 400 and the overflow portion thereof and the packaging adhesive layer 200 can be effectively improved, and further, the influence of the adhesive layer 400 on the bending of the bending portion 110 is reduced, and the high yield of the manufacturing process is ensured.
It should be noted that the shape of the cover plate 500 is not particularly limited in the embodiment of the present invention, and the cover plate 500 may be a cover plate 500 which is entirely planar as shown in fig. 1, and needs to be specifically designed according to practical applications.
Referring to fig. 4, a schematic structural diagram of another display module according to an embodiment of the present invention is shown, wherein the display module includes a polarizer 800 located on a surface of one side of the display surface 101 of the display panel 100, so as to improve a display effect of the display module. The distance a between the anti-sticking layer 300 and the polarizer 800 provided by the invention is greater than or equal to 0.25mm, so that the high attaching and fastening effect of the attaching layer 400 to the polarizer 800 can be ensured.
In an embodiment of the invention, a side line of the polarizer 800 facing the bonding area BA may overlap with a side line of the encapsulant layer 200 facing the display area AA. Because the distance a exists between the anti-sticking layer 300 and the polarizer 800, the attaching layer 400 can be adhered to the packaging adhesive layer 200 at the distance a, so as to achieve the purpose of higher effect of attaching and fastening the polarizer 800.
Referring to fig. 5, a schematic structural view of another display module according to an embodiment of the present invention is shown, wherein the attachment layer 400 according to an embodiment of the present invention covers a portion of the anti-adhesion layer 300, and an edge line of a side of the anti-adhesion layer 300 facing away from the display area AA is located within a bending center line of the bending portion 110.
It can be understood that, when the adhesive layer 400 provided by the embodiment of the invention extends to cover the anti-adhesion layer 300, only a partial region of the anti-adhesion layer 300 from the edge facing the display area AA to the edge of the display area AA far away from the anti-adhesion layer 300 is covered, and not all of the adhesive layer 300 is covered and extends to the portion of the encapsulation adhesive layer 200 at the side of the anti-adhesion layer 300 far away from the display area AA. Moreover, the edge line of the anti-adhesion layer 300 far away from the display area AA is located within the bending center line of the bending portion 110, so that the effect of the attachment layer 400 on the bending portion 110 is limited, and the bending portion 400 can be bent along the predetermined bending center line, thereby ensuring that the distance between the bending center line and the edge line of the cover plate 500 on the same side meets the expectation; meanwhile, the bending effect of the bending part 400 can be ensured to be high, and the situation that the bending part 400 cracks is avoided.
Correspondingly, the embodiment of the invention also provides a manufacturing method of the display module, which is used for manufacturing the display module provided by any one of the embodiments. Referring to fig. 6, a flowchart of a manufacturing method of a display module according to an embodiment of the present invention is shown, where the manufacturing method includes:
s1, providing the display panel, wherein the display panel comprises a display area and a binding area located on one side of the display area, and the binding area comprises a bending part.
And S2, forming the packaging adhesive layer covering the bent part on one side surface of the display surface.
S3, forming the anti-sticking layer on the side, away from the bending part, of the packaging adhesive layer, wherein the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer.
S4, adopt the attached layer will the apron with the laminating of display panel' S display surface one side, the attached layer covers the display surface just extends to cover at least part antiseized layer.
And S5, bending the bending part towards the side of the display surface departing from the display panel.
It should be noted that, after step S5, the manufacturing method provided in the embodiment of the present invention further includes steps of assembling and packaging auxiliary materials such as binding of the driver chip, which are the same as those in the prior art, and redundant description is not repeated in the present invention.
The manufacturing method provided by the embodiment of the invention is described in more detail with reference to fig. 7-11. Fig. 7-11 are schematic structural diagrams corresponding to the steps in fig. 6.
As shown in fig. 7, corresponding to step S1, the display panel 100 is provided, where the display panel 100 includes a display area AA and a binding area BA located at one side of the display area AA, and the binding area BA includes a bending portion 110.
The display area AA and the binding area BA provided by the embodiment of the invention also comprise a plurality of line transition areas. And, the binding area BA further includes a binding portion 120 at a side of the bending portion 110 away from the display area AA. In addition, before the subsequent steps, the polarizer 800 may be attached to the display surface 101 of the display panel 100.
As shown in fig. 8, corresponding to step S2, the packaging adhesive layer 200 covering the bending portion 110 on the surface of the display surface 101 is formed.
In an embodiment of the present invention, the encapsulation adhesive layer 200 provided by the present invention is preferably a UV adhesive layer (ultraviolet curing adhesive layer).
As shown in fig. 9, corresponding to step S3, the anti-sticking layer 300 is formed on the side of the encapsulation adhesive layer 200 away from the bending portion 110, and the surface energy of the anti-sticking layer 300 is smaller than the surface energy of the encapsulation adhesive layer 200.
In an embodiment of the invention, the forming of the anti-adhesion layer 300 on the side of the encapsulation adhesive layer 200 away from the bending portion 110 includes: the anti-sticking layer 300 is formed on the side of the packaging adhesive layer 200 away from the bending part 110 by a coating method.
Optionally, the coating manner provided in the embodiment of the present invention may be reverse roll coating, gravure coating, extrusion coating, or the like, and the present invention is not particularly limited. And, after the preparation of the release layer 300 is completed, a predetermined shape cutting process is performed on the display panel 100.
As shown in fig. 10, corresponding to step S4, the cover plate 500 is attached to the display surface 101 of the display panel 100 by using the attachment layer 400, and the attachment layer 400 covers the display surface 101 and extends to cover at least a portion of the anti-adhesion layer 300.
In an embodiment of the invention, the attachment layer 400 provided in the invention may be an OCA optical adhesive layer, and the invention is not limited thereto. When pasting between apron 500 and display panel 100 through attached layer 400, the condition that overflows can appear to the material of attached layer 400, consequently, set up an antiseized layer 300 in surface one side of encapsulation glue film 200, can reduce the adhesion area between attached layer 400 and the encapsulation glue film 200, reduce attached layer 400 and to the corresponding power of pulling of kink 110 department, reduce the influence when attached layer 400 buckles kink 110, guarantee that the processing procedure yield is high.
Meanwhile, in the manufacturing method provided by the embodiment of the present invention, before the subsequent process, an SCF (Super Clean Foam) layer 600 and the like may be attached to the side of the display panel 100 away from the display surface 101, and thus, the manufacturing method may be specifically manufactured according to actual applications.
As shown in fig. 11, corresponding to step S5, the bending portion 110 is bent toward the side away from the display surface 101 of the display panel 100. Then, the binding part 120 is bound with the driver chip 700, and the subsequent processes of assembling and packaging the auxiliary materials are completed.
Correspondingly, the embodiment of the invention also provides a display device, and the display device comprises the display module provided by any one of the embodiments.
Referring to fig. 12, a schematic structural diagram of a display device according to an embodiment of the present invention is shown, where the display device 1000 according to the embodiment of the present invention may be a mobile terminal, and the display device 1000 includes the display module according to any one of the embodiments.
It should be noted that the display device provided in the embodiment of the present invention may also be a notebook, a tablet, a computer, a wearable device, and the like, and the present invention is not limited in particular.
The embodiment of the invention provides a display module, a manufacturing method thereof and a display device, wherein the display module comprises the following steps: the display panel comprises a display area and a binding area positioned on one side of the display area, wherein the binding area comprises a bending part bent towards one side of the display surface departing from the display panel; the packaging adhesive layer covers the surface of the bent part on one side of the display surface; the anti-sticking layer is positioned on one side, away from the bending part, of the packaging adhesive layer, and the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer; the adhesion layer is positioned on one side of the anti-sticking layer, which faces away from the display panel, covers the display area and extends to cover at least part of the anti-sticking layer; and the cover plate is positioned on one side of the attaching layer, which deviates from the display panel.
According to the technical scheme provided by the embodiment of the invention, the anti-sticking layer is prepared on the side, away from the bending part, of the packaging adhesive layer, wherein the attaching layer covers the display area and extends to cover at least part of the anti-sticking layer, even if the attaching layer is adhered between the side, away from the display area, of the anti-sticking layer and the packaging adhesive layer, because the anti-sticking layer is present, the adhesion area between the attaching layer and the packaging adhesive layer is reduced, the pulling related force of the attaching layer on the bending part can be further reduced, the conditions of abnormity and cracks when the bending part is bent are improved, the breakage rate when the display module is prepared is reduced, and the yield of the display module is ensured to be higher.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A display module, comprising:
the display panel comprises a display area and a binding area positioned on one side of the display area, wherein the binding area comprises a bending part bent towards one side of the display surface departing from the display panel;
the packaging adhesive layer covers the surface of the bent part on one side of the display surface;
the anti-sticking layer is positioned on one side, away from the bending part, of the packaging adhesive layer, and the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer;
the adhesion layer is positioned on one side of the anti-sticking layer, which faces away from the display panel, covers the display area and extends to cover at least part of the anti-sticking layer;
and the cover plate is positioned on one side of the attaching layer, which deviates from the display panel.
2. The display module of claim 1, wherein the release layer has a surface water drop angle greater than or equal to 100 °;
and/or the surface peeling force of the release layer is less than or equal to 10 gf/inch.
3. The display module of claim 1, wherein the anti-sticking layer is made of oil or hydrophobic material.
4. The display module of claim 3, wherein the anti-sticking layer is made of silicone oil, organic fluorine material or PEDOT.
5. The display module according to claim 1, wherein the display module comprises a polarizer on a surface of one side of the display surface of the display panel;
the distance between the anti-sticking layer and the polaroid is larger than or equal to 0.25 mm.
6. The display module of claim 1, wherein the release layer has a thickness in the range of 5-15 μm.
7. The display module according to claim 1, wherein the adhesion layer covers a portion of the anti-adhesion layer, and an edge line of a side of the anti-adhesion layer facing away from the display area is located within a bending center line of the bending portion.
8. A method for manufacturing a display module according to any one of claims 1 to 7, the method comprising:
providing the display panel, wherein the display panel comprises a display area and a binding area positioned on one side of the display area, and the binding area comprises a bending part;
forming the packaging adhesive layer covering the bent part on the surface of one side of the display surface;
forming the anti-sticking layer on one side of the packaging adhesive layer, which is far away from the bending part, wherein the surface energy of the anti-sticking layer is smaller than that of the packaging adhesive layer;
the cover plate is attached to one side of the display surface of the display panel by the attaching layer, and the attaching layer covers the display surface and extends to cover at least part of the anti-sticking layer;
and bending the bending part towards one side of the display surface departing from the display panel.
9. The method of claim 8, wherein forming the anti-adhesion layer on a side of the encapsulation adhesive layer away from the bending portion comprises:
and forming the anti-sticking layer on one side of the packaging adhesive layer, which is deviated from the bending part, by adopting a coating mode.
10. A display device, characterized in that the display device comprises the display module according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111636826.3A CN114267254B (en) | 2021-12-29 | 2021-12-29 | Display module, manufacturing method thereof and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111636826.3A CN114267254B (en) | 2021-12-29 | 2021-12-29 | Display module, manufacturing method thereof and display device |
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| CN114267254A true CN114267254A (en) | 2022-04-01 |
| CN114267254B CN114267254B (en) | 2023-05-09 |
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| CN202111636826.3A Active CN114267254B (en) | 2021-12-29 | 2021-12-29 | Display module, manufacturing method thereof and display device |
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