CN113851047A - Display panel, manufacturing method thereof and mobile terminal - Google Patents
Display panel, manufacturing method thereof and mobile terminal Download PDFInfo
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- CN113851047A CN113851047A CN202111079088.7A CN202111079088A CN113851047A CN 113851047 A CN113851047 A CN 113851047A CN 202111079088 A CN202111079088 A CN 202111079088A CN 113851047 A CN113851047 A CN 113851047A
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- 229910021389 graphene Inorganic materials 0.000 claims abstract description 52
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 20
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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
Abstract
The embodiment of the invention discloses a display panel, a manufacturing method thereof and a mobile terminal; the display panel comprises a flexible supporting layer, a back plate and a display main body, wherein the back plate is positioned on the flexible supporting layer, the display main body is positioned on the back plate, the flexible supporting layer is made of graphene, and the flexible supporting layer comprises a plurality of openings; according to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel, a manufacturing method thereof and a mobile terminal.
Background
In recent years, the quality requirement for display panel is higher and higher, and the material that present display panel corresponds the cotton layer of bubble that the backplate set up is softer, and elastic modulus is lower, and heat-resisting capacity is not high, and when display panel buckled or received the impact, the cotton layer of bubble can't effectively alleviate stress, and the support nature is not enough, and the unsmooth impression that leads to also can be renditioned to the display panel surface, has reduced display panel taste.
Therefore, a display panel, a method for manufacturing the same, and a mobile terminal are needed to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a display panel, a manufacturing method thereof and a mobile terminal, which can solve the technical problem that the material support recovery of the existing foam layer is poor.
The embodiment of the invention provides a display panel, which comprises an elastic supporting layer, a back plate and a display main body, wherein the back plate is positioned on the elastic supporting layer;
wherein the material of the elastic support layer comprises graphene, and the elastic support layer comprises a plurality of open pores.
In an embodiment, the display panel further includes a rigid support layer, and the rigid support layer is located between the elastic support layer and the back plate, or the rigid support layer is located on a side of the elastic support layer away from the back plate.
In one embodiment, the aperture ratio of the elastic support layer gradually decreases in the direction from the back plate to the elastic support layer.
In one embodiment, the display panel comprises a folding area and plane areas positioned at two sides of the folding area; the open area ratio of the resilient support layer in the fold region is greater than the open area ratio of the resilient support layer in the planar region.
In an embodiment, the display panel further includes a first adhesive layer on a side of the elastic support layer close to the back plate and a second adhesive layer on a side far from the back plate.
In one embodiment, the elastic support layer has an open pore ratio of 80% to 95%, and the open pores have a pore diameter of 50 nm to 1 μm.
The embodiment of the invention also provides a manufacturing method of the display panel, which comprises the following steps:
forming a porous support layer on a substrate;
forming a graphene film layer on the support layer;
removing the carrier layer to obtain an elastic support layer comprising at least one layer of graphene material;
attaching the elastic supporting layer to the back plate and the display main body;
wherein the resilient support layer comprises a plurality of apertures.
In an embodiment, the material of the carrier layer comprises aluminum oxide or/and silicon oxide.
In one embodiment, the method comprisesThe carrier layer removing step comprises: removing the carrier layer by using an acidic removing solution or an alkaline removing solution; wherein the acidic removal solution comprises a combination of HCl, HF, or H3PO4And HF, wherein the alkaline removal solution comprises a combination of NaOH and KOH.
The embodiment of the invention also provides a mobile terminal, which comprises any one of the display panel and the terminal main body, wherein the terminal main body and the display panel are combined into a whole.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
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 structural diagram of a first structure of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third structure of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth structure of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth structure of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sixth structure of a display panel according to an embodiment of the present invention;
fig. 7 is a scanning electron microscope image of a graphene material in an elastic supporting layer of a display panel provided in an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for fabricating a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a mobile terminal 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. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
In recent years, the quality requirement for display panel is higher and higher, and the material that present display panel corresponds the cotton layer of bubble that the backplate set up is softer, and elastic modulus is lower, and heat-resisting capacity is not high, and when display panel buckled or received the impact, the cotton layer of bubble can't effectively alleviate stress, and the support nature is not enough, and the unsmooth impression that leads to also can be renditioned to the display panel surface, has reduced display panel taste.
Referring to fig. 1 to 6, an embodiment of the invention provides a display panel 100, including a flexible supporting layer 200, a back plate 300 on the flexible supporting layer 200, and a display main body 400 on the back plate 300;
wherein the material of the elastic support layer 200 comprises graphene, and the elastic support layer 200 comprises a plurality of openings 210.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
In this embodiment, because the material of the foam layer in the prior art has poor support restorability, the support property for the display panel 100 is insufficient, the material is apparently soft and does not resist high temperature, and the elasticity of the foam layer is greatly reduced in a low-temperature environment, and meanwhile, in order to improve the impact resistance of the light-emitting module by using the foam material, the foam is generally prepared by a foaming process, the surface flatness is difficult to control, and unevenness of the surface of the foam is also transferred to the surface, so that the appearance quality is reduced, the display panel 100 of the present invention includes an elastic support layer 200, a backplane 300 located on the elastic support layer 200, and a display main body 400 located on the backplane 300, the material of the elastic support layer 200 includes graphene, and the elastic support layer 200 includes a plurality of openings 210, specifically referring to fig. 1.
The graphene material has a good heat dissipation effect; stable thermal performance, good dimensional stability and stable mechanical performance (such as-40 ℃ to 100 ℃) in a larger temperature range; the design of the three-dimensional porous structure realizes high elasticity, excellent restorability and bendability; the graphene with the three-dimensional porous structure has the characteristics of high strength, difficult damage and strong deformation resistance; the color of the graphene is black, so that the graphene has good shielding capability; graphene is a bulk material, and is easy to control thickness, size, and the like, and is easy to realize surface smoothing, specifically refer to fig. 7. Therefore, the elastic supporting layer 200 of the embodiment of the invention replaces the foam layer, has the performances of impact resistance, heat dissipation and the like, and can improve the appearance quality of the display panel 100.
In this embodiment, when the display panel 100 has sufficient rigidity, the elastic supporting layer 200 may be used as a separate supporting layer of the display panel 100, for example, may replace a stainless steel plate in the prior art, and refer to fig. 1 specifically.
In this embodiment, the display panel 100 may encounter a strong impact, the display panel 100 needs to have a stronger supporting property, and the display panel 100 further includes a rigid supporting layer 700, where the rigid supporting layer 700 is located between the elastic supporting layer 200 and the back plate 300, or the rigid supporting layer 700 is located on a side of the elastic supporting layer 200 away from the back plate 300, as shown in fig. 2 and fig. 3.
The elastic modulus of the rigid support layer 700 is greater than that of the elastic support layer 200, and the hardness of the rigid support layer 700 is greater than that of the elastic support layer 200, which may provide better support to the display main body 400.
In this embodiment, the material of the rigid support layer 700 may be a material with a large elastic modulus, such as stainless steel.
In this embodiment, the display panel 100 includes a folding area B and planar areas a located at two sides of the folding area B, and the display panel 100 is a foldable display panel 100, specifically referring to fig. 5, the folding area B may be located in the middle of the display panel 100, or may be located near the end of the display panel 100, and is not limited herein according to actual needs.
In this embodiment, when the foldable display panel 100 is used, the film layer in the folding region B is folded for multiple times, and stress optimization needs to be performed on the film layer in the folding region B. The rigid support layer 700 includes a plurality of first openings that are located within the fold region B. When the display panel 100 is bent or folded, the bending stress is relieved through the first opening.
In this embodiment, the uneven film layer is transferred to the surface of the display panel 100, so that the appearance quality is degraded, and the aperture ratio of the elastic supporting layer 200 is gradually decreased in the direction from the back plate 300 to the elastic supporting layer 200, please refer to fig. 4 specifically. In fig. 4 and 5, the size of the opening ratio is represented by the size of the opening area of the opening 210, and it is understood that the size of the opening ratio is also related to the number of openings, and only by way of example, the opening area is gradually decreased, which can improve the flatness of the elastic support layer 200, reduce the risk of transfer, decrease the opening ratio, increase the elastic modulus, and have better planarization effect on the rigid support layer 700 including the first opening,
in this embodiment, when the foldable display panel 100 is used, the film layer in the folding region B is folded for multiple times, and stress optimization needs to be performed on the film layer in the folding region B. The aperture ratio of the resilient support layer 200 in the folding area B is greater than the aperture ratio of the resilient support layer 200 in the plane area a, see fig. 5. The aperture ratio of the elastic support layer 200 in the folding region B is properly increased, so that the bending stress is relieved when the elastic support layer 200 in the folding region B is bent, and the display panel 100 is protected.
In this embodiment, the bonding force of the elastic support layer 200 is slightly weaker than that of the foam layer in the prior art, and bonding layers need to be arranged on two sides of the elastic support layer 200. The display panel 100 further includes a first adhesive layer 810 disposed on a side of the elastic supporting layer 200 close to the back plate 300 and a second adhesive layer 820 disposed on a side far from the back plate 300, as shown in fig. 6. Through the arrangement of the first bonding layer 810 and the second bonding layer 820, the bonding force between the elastic supporting layer 200 and the film layers on the two sides can be improved, and the film layers are prevented from falling off or moving in a staggered manner.
In this embodiment, the second adhesive layer 820 is closer to the outer side of the display panel 100 than the first adhesive layer 810, and the thickness of the second adhesive layer 820 is greater than that of the first adhesive layer 810, please refer to fig. 6 specifically. The thickness of the second adhesive layer 820 is set to be greater than that of the first adhesive layer 810, and the second adhesive layer 820 may also serve to buffer an impact force when a blunt object impacts the display panel 100, thereby protecting the display panel 100.
In this embodiment, the materials of the first adhesive layer 810 and the second adhesive layer 820 may be adhesive materials such as optical adhesive, which may be replaced according to specific situations, and are not limited herein.
In this embodiment, the aperture ratio of the elastic supporting layer 200 is 80% to 95%, and the aperture of the aperture 210 is 50 nm to 1 μm, please refer to fig. 7 specifically. The higher aperture ratio is beneficial to improving the flexibility and elasticity of the graphene, the aperture is in a nanometer level, the graphene can be prepared by demolding the nano oxide when the display panel 100 is manufactured, and the manufacturing method is simple and high in efficiency.
In this embodiment, the display main body 400 includes a substrate, an array substrate and a light emitting device, the array substrate includes an active layer on the substrate, a first insulating layer on the active layer, a gate layer on the first insulating layer, a second insulating layer on the gate layer, a source drain layer on the second insulating layer, and a third insulating layer on the source drain layer, the light emitting device includes an anode layer on the third insulating layer, a light emitting material layer on the anode layer, and a cathode layer on the light emitting material layer, the display main body 400 further includes a pixel defining layer on the same layer as the light emitting material layer, a polarizing layer 500 on the light emitting device, and a flexible cover plate 600 on the polarizing layer 500, and the display panel 100 further includes a polarizing layer 500, a flexible cover plate 600 between the polarizing layer 500 and the flexible cover plate 600, Corresponding adhesive layers between the light emitting devices and the polarizing layer 500 and between the back plate 300 and the display main body 400, refer to fig. 1.
In this embodiment, the material corresponding to the bonding layer may be a bonding material such as an optical adhesive, which may be replaced according to specific situations, and is not specifically limited herein.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
Referring to fig. 8, an embodiment of the present invention further provides a method for manufacturing a display panel 100, including:
and S100, forming a porous support layer on the substrate.
And S200, forming a graphene film layer on the carrier layer.
And S300, removing the carrier layer to obtain the elastic support layer 200 comprising the graphene material.
S400, attaching the elastic supporting layer 200 to the back plate 300 and the display main body 400.
Wherein the resilient support layer 200 includes a plurality of apertures 210.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
And S100, forming a porous support layer on the substrate.
In this embodiment, the material of the carrier layer includes aluminum oxide or/and silicon oxide. In the formation of graphene, a high-temperature environment is required, and the material of the carrier layer is required to be resistant to high temperature and not decompose so as to provide a good supporting function.
In this embodiment, the carrier layer may be prepared by sol-gel, hydrothermal, or 3D printing, and may be replaced according to specific situations, and is not limited specifically herein.
In this embodiment, the aperture ratio of the elastic supporting layer 200 is controlled to be 80% to 95% and the aperture of the opening 210 is controlled to be 50 nm to 1 μm by controlling the aperture ratio of the supporting layer and the distance between the particles of the material of the supporting layer, as shown in fig. 7. The higher aperture ratio is beneficial to improving the flexibility and elasticity of the graphene, the aperture is in a nanometer level, the graphene can be prepared by demolding the nano oxide when the display panel 100 is manufactured, and the manufacturing method is simple and high in efficiency.
And S200, forming a graphene film layer on the carrier layer.
In this embodiment, step S200 includes:
and S210, forming a graphene material on the carrier layer.
And S220, forming a graphene film layer on the carrier layer by using any one of methods of vapor deposition, sputtering and evaporation on the graphene material under a first process condition.
In this embodiment, the first process condition includes a forming temperature of 800 ℃ to 1000 ℃ and a heating rate of 1 ℃/min to 20 ℃/min.
In this embodiment, the temperature rise rate is preferably 5 ℃/min to 10 ℃/min. The method is beneficial to more regular formation of graphene, easy control of the aperture ratio and improvement of the quality of the elastic supporting layer 200.
And S300, removing the carrier layer to obtain the elastic support layer 200 comprising the graphene material.
In this embodiment, step S300 includes:
and S310, removing the carrier layer by using an acidic removal solution or an alkaline removal solution to obtain the elastic support layer 200 comprising the graphene material.
In this embodiment, the acidic removal solution comprises a combination of HCl and HF, or H3PO4And HF, wherein the alkaline removal solution comprises a combination of NaOH and KOH.
In this example, the volume ratio of HCl to HF combined is 1:2 to 1:10, H3PO4The volume ratio of the combination with HF is 1:2 to 1:10, and the volume ratio of the combination of NaOH and KOH is 1:2 to 1: 10.
In this embodiment, when the display panel 100 has sufficient rigidity, the elastic support layer 200 may be used as a separate support layer for the display panel 100, for example, may replace a stainless steel plate in the prior art.
In this embodiment, the display panel 100 may encounter a strong impact, the display panel 100 needs to have a stronger supporting property, and the display panel 100 further includes a rigid supporting layer 700, where the rigid supporting layer 700 is located between the elastic supporting layer 200 and the back plate 300, or the rigid supporting layer 700 is located on a side of the elastic supporting layer 200 away from the back plate 300, as shown in fig. 2 and fig. 3.
The elastic modulus of the rigid support layer 700 is greater than that of the elastic support layer 200, and the hardness of the rigid support layer 700 is greater than that of the elastic support layer 200, which may provide better support to the display main body 400.
In this embodiment, the material of the rigid support layer 700 may be a material with a large elastic modulus, such as stainless steel.
In this embodiment, the display panel 100 includes a folding area B and planar areas a located at two sides of the folding area B, and the display panel 100 is a foldable display panel 100, specifically referring to fig. 5, the folding area B may be located in the middle of the display panel 100, or may be located near the end of the display panel 100, and is not limited herein according to actual needs.
In this embodiment, when the foldable display panel 100 is used, the film layer in the folding region B is folded for multiple times, and stress optimization needs to be performed on the film layer in the folding region B. The rigid support layer 700 includes a plurality of first openings that are located within the fold region B. When the display panel 100 is bent or folded, the bending stress is relieved through the first opening.
In this embodiment, the uneven film layer is transferred to the surface of the display panel 100, so that the appearance quality is degraded, and the aperture ratio of the elastic supporting layer 200 is gradually decreased in the direction from the back plate 300 to the elastic supporting layer 200, please refer to fig. 4 specifically. The gradual decrease of the aperture ratio can improve the flatness of the elastic support layer 200, reduce the risk of transfer printing, decrease the aperture ratio, increase the elastic modulus, and have a better planarization effect on the rigid support layer 700 including the first openings,
in this embodiment, when the foldable display panel 100 is used, the film layer in the folding region B is folded for multiple times, and stress optimization needs to be performed on the film layer in the folding region B. The aperture ratio of the resilient support layer 200 in the folding area B is greater than the aperture ratio of the resilient support layer 200 in the plane area a, see fig. 5. The aperture ratio of the elastic support layer 200 in the folding region B is properly increased, so that the bending stress is relieved when the elastic support layer 200 in the folding region B is bent, and the display panel 100 is protected.
In this embodiment, the bonding force of the elastic support layer 200 is slightly weaker than that of the foam layer in the prior art, and bonding layers need to be arranged on two sides of the elastic support layer 200. The display panel 100 further includes a first adhesive layer 810 disposed on a side of the elastic supporting layer 200 close to the back plate 300 and a second adhesive layer 820 disposed on a side far from the back plate 300, as shown in fig. 6. Through the arrangement of the first bonding layer 810 and the second bonding layer 820, the bonding force between the elastic supporting layer 200 and the film layers on the two sides can be improved, and the film layers are prevented from falling off or moving in a staggered manner.
In this embodiment, the second adhesive layer 820 is closer to the outer side of the display panel 100 than the first adhesive layer 810, and the thickness of the second adhesive layer 820 is greater than that of the first adhesive layer 810. The thickness of the second adhesive layer 820 is set to be greater than that of the first adhesive layer 810, and the second adhesive layer 820 may also serve to buffer an impact force when a blunt object impacts the display panel 100, thereby protecting the display panel 100.
In this embodiment, the materials of the first adhesive layer 810 and the second adhesive layer 820 may be adhesive materials such as optical adhesive, which may be replaced according to specific situations, and are not limited herein.
S400, attaching the elastic supporting layer 200 to the back plate 300 and the display main body 400.
In this embodiment, because the material of the foam layer in the prior art has poor support restorability, the support property for the display panel 100 is insufficient, the material is apparently soft and does not resist high temperature, and the elasticity of the foam layer is greatly reduced in a low-temperature environment, and meanwhile, in order to improve the impact resistance of the light-emitting module by using the foam material, the foam is generally prepared by a foaming process, the surface flatness is difficult to control, and unevenness of the surface of the foam is also transferred to the surface, so that the appearance quality is reduced, the display panel 100 of the present invention includes an elastic support layer 200, a backplane 300 located on the elastic support layer 200, and a display main body 400 located on the backplane 300, the material of the elastic support layer 200 includes graphene, and the elastic support layer 200 includes a plurality of openings 210, specifically referring to fig. 1.
The graphene material has a good heat dissipation effect; stable thermal performance, good dimensional stability and stable mechanical performance (such as-40 ℃ to 100 ℃) in a larger temperature range; the design of the three-dimensional porous structure realizes high elasticity, excellent resilience and bending property; the graphene with the three-dimensional porous structure has the characteristics of high strength, difficult damage and strong deformation resistance; the color of the graphene is black, so that the graphene has good shielding capability; the graphene is a blocky material, the thickness, the size and the like are easy to control, and the surface is easy to realize to be flat. Therefore, the elastic supporting layer 200 of the embodiment of the invention replaces the foam layer, has the performances of impact resistance, heat dissipation and the like, and can improve the appearance quality of the display panel 100.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
Referring to fig. 9, an embodiment of the present invention further provides a mobile terminal 10, including any one of the display panels 100 and the terminal body 20, where the terminal body 20 and the display panel 100 are combined into a whole.
Please refer to any one of the embodiments of the display panel 100 and fig. 1 to 7, which will not be described herein.
In this embodiment, the terminal main body 20 may include a middle frame, a frame adhesive, and the like, and the mobile terminal 10 may be a mobile display terminal such as a mobile phone and a tablet, which is not limited herein.
According to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
The embodiment of the invention discloses a display panel, a manufacturing method thereof and a mobile terminal; the display panel comprises a flexible supporting layer, a back plate and a display main body, wherein the back plate is positioned on the flexible supporting layer, the display main body is positioned on the back plate, the flexible supporting layer is made of graphene, and the flexible supporting layer comprises a plurality of openings; according to the embodiment of the invention, the elastic supporting layer of the graphene material with the plurality of openings is adopted, and the advantages of heat dissipation and porous elasticity of the graphene material are utilized, so that the elastic supporting layer is ensured to have good heat dissipation, the supporting performance of the elastic supporting layer is improved, and the display effect of the display panel is enhanced.
The display panel, the manufacturing method thereof, and the mobile terminal provided by the embodiment of the present invention are described in detail above, and a specific example is applied in the description to explain the principle and the embodiment of the present invention, and the description of the embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A display panel is characterized by comprising an elastic supporting layer, a back plate positioned on the elastic supporting layer and a display main body positioned on the back plate;
wherein the material of the elastic support layer comprises graphene, and the elastic support layer comprises a plurality of open pores.
2. The display panel of claim 1, further comprising a rigid support layer between the elastic support layer and the back plate or on a side of the elastic support layer away from the back plate.
3. The display panel of claim 1, wherein the aperture ratio of the resilient support layer decreases gradually in a direction from the back plate to the resilient support layer.
4. The display panel according to claim 1, wherein the display panel comprises a folding area and planar areas located at both sides of the folding area;
the open area ratio of the resilient support layer in the fold region is greater than the open area ratio of the resilient support layer in the planar region.
5. The display panel of claim 1, further comprising a first adhesive layer on a side of the resilient support layer adjacent to the backplane and a second adhesive layer on a side of the resilient support layer remote from the backplane.
6. The display panel according to claim 1, wherein the elastic support layer has an opening ratio of 80% to 95%, and the opening has a pore diameter of 50 nm to 1 μm.
7. A method for manufacturing a display panel is characterized by comprising the following steps:
forming a porous support layer on a substrate;
forming a graphene film layer on the support layer;
removing the carrier layer to obtain an elastic support layer comprising a graphene material;
attaching the elastic supporting layer to the back plate and the display main body;
wherein the resilient support layer comprises a plurality of apertures.
8. The method of claim 7, wherein the material of the carrier layer comprises aluminum oxide or/and silicon oxide.
9. The method according to claim 8, wherein the step of removing the carrier layer comprises:
removing the carrier layer by using an acidic removing solution or an alkaline removing solution;
wherein the acidic removal solution comprises a combination of HCl, HF, or H3PO4And HF, wherein the alkaline removal solution comprises a combination of NaOH and KOH.
10. A mobile terminal comprising the display panel according to any one of claims 1 to 6 and a terminal body, the terminal body being integrated with the display panel.
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