CN111739925B - Display panel and electronic equipment - Google Patents

Display panel and electronic equipment Download PDF

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CN111739925B
CN111739925B CN202010802229.2A CN202010802229A CN111739925B CN 111739925 B CN111739925 B CN 111739925B CN 202010802229 A CN202010802229 A CN 202010802229A CN 111739925 B CN111739925 B CN 111739925B
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hydrophobic structure
layer
packaging
area
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CN111739925A (en
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霍思涛
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Shanghai Tianma Microelectronics Co Ltd
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Shanghai Tianma Microelectronics Co Ltd
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • 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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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The invention provides a display panel and an electronic device, the display panel includes: the pixel structure comprises a substrate, sub-pixels, a first packaging layer, a second packaging layer and a first hydrophobic structure. Specifically, the sub-pixels are located on one side of the substrate and include a plurality of first sub-pixels disposed in the first region and a plurality of second sub-pixels disposed in the second region. The first packaging layer at least covers the first sub-pixels, the second packaging layer comprises a plurality of sub-packaging units, each sub-packaging unit at least covers one second sub-pixel, and at least a first gap exists between every two adjacent sub-packaging units. In the display panel, the first hydrophobic structure which is close to one side surface of the first packaging layer, is connected with the first packaging layer and has the thickness larger than or equal to the thickness of the first packaging layer is arranged between the first area and the second area, and the diffusion of an organic film in the first packaging layer is blocked through the first hydrophobic structure, so that the width of the packaging layer between the first area and the second area is reduced, and the continuous pixel display is realized.

Description

Display panel and electronic equipment
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and an electronic device.
Background
With the rapid development of display panels, the display panels are more and more diversified, as shown in fig. 1, the display panels may include both a non-stretching region 10 and a stretching region 20, wherein each pixel unit or each pixel in the stretching region may be stretched, as shown in fig. 2, a pixel unit 21 and a pixel unit 22 may be stretched. However, the inventors have found that in such a display panel, a non-display region having a certain width may exist between the stretchable region and the non-stretchable region, thereby causing display discontinuity of the display panel.
Disclosure of Invention
In view of the above, the present invention provides a display panel and an electronic device, which can improve the display effect of the display panel.
In order to achieve the purpose, the invention provides the following technical scheme:
a display panel, comprising: the pixel structure comprises a substrate, sub-pixels, a first packaging layer, a second packaging layer and a first hydrophobic structure;
wherein the substrate comprises a first region and a second region;
the sub-pixels are positioned on one side of the substrate and comprise a plurality of first sub-pixels and a plurality of second sub-pixels, the first sub-pixels are arranged in the first area, and the second sub-pixels are arranged in the second area;
the first packaging layer at least covers the first sub-pixels, the second packaging layer comprises a plurality of sub-packaging units, each sub-packaging unit at least covers one second sub-pixel, and at least a first gap exists between every two adjacent sub-packaging units;
the first hydrophobic structure is located between the first area and the second area, and is connected with the first packaging layer by being close to one side surface of the first packaging layer, wherein the thickness of the first hydrophobic structure is larger than or equal to that of the first packaging layer.
An electronic device comprising any of the above display panels.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the invention provides a display panel, wherein a first hydrophobic structure which is close to one side surface of a first packaging layer and is connected with the first packaging layer is arranged in a first area, the first hydrophobic structure blocks the diffusion of an organic film in the first packaging layer, and the first hydrophobic structure can enable the edge cut-off distance of the first packaging layer to be short, so that the width of the packaging layer between the first area and a second area is reduced, and the problem of discontinuous display is avoided. In addition, the display panel provided by the invention can be provided with the second hydrophobic structure surrounding the sub-packaging unit in the second area, so that the sub-pixels in the second area can be packaged at a pixel level. In addition, the height of the first encapsulation layer in the first area and the height of the second encapsulation layer in the second area can be controlled by setting the heights of the first hydrophobic structure and the second hydrophobic structure, when the height of the first encapsulation layer is consistent with the height of the second encapsulation layer, the first area and the second area have no visual line difference, and the display effect of the display panel is improved. When the height of the second packaging layer is lower than that of the first packaging layer, the packaging process of the second packaging layer can be simplified, for example, the second packaging layer can realize independent packaging of the second sub-pixel only by adopting one inorganic film, and the tensile property of the second area can be enhanced. Furthermore, the display panel provided by the invention can also be provided with a third area which is positioned between the first area and the second area and used for transition, and the stretch-proof performance of the display panel is further enhanced through the third area.
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 conventional display panel;
fig. 2 is a schematic partial structure diagram of a conventional display panel;
FIG. 3 is a schematic cross-sectional view of a conventional display panel;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic view of another structure of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 10 is a schematic view of another structure of a display panel according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 13 is a schematic diagram of an electronic device according to an embodiment of the present invention;
fig. 14 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the present invention.
Detailed Description
As described in the background art, the inventors have found that, in the conventional display panel including the stretchable regions 31 and the non-stretchable regions 32, as shown in fig. 3, the non-stretchable regions employ a continuous packaging process consistent with a conventional AMOLED screen. Since the encapsulation layer 34 of the non-stretching region is generally a structure of one inorganic layer 341, one organic layer 342, and one inorganic layer 343, there is a non-display region 321 with a certain width at the boundary of the non-stretching region 32, and the non-stretching region is further divided into a display region 322 (a region where pixels are disposed) and the non-display region 321. Generally, the width of the non-display area 321 is 200-400um, that is, at least 200-400um of the non-display area exists between the stretchable area and the non-stretchable area in the display panel, thereby causing a display discontinuity phenomenon between the stretchable area and the non-stretchable area on the display panel, and further affecting the display effect.
Based on this, the present invention provides a display panel comprising: the pixel structure comprises a substrate, sub-pixels, a first packaging layer, a second packaging layer and a first hydrophobic structure, so that the problems in the prior art are solved. Wherein the substrate includes a first region and a second region. The sub-pixels are positioned on one side of the substrate and comprise a plurality of first sub-pixels and a plurality of second sub-pixels, the first sub-pixels are arranged in the first area, and the second sub-pixels are arranged in the second area. The first packaging layer at least covers the first sub-pixel, the second packaging layer comprises a plurality of sub-packaging units, each sub-packaging unit at least covers one second sub-pixel, and at least a first gap exists between every two adjacent sub-packaging units. The first hydrophobic structure is located between the first area and the second area, and is connected with the first packaging layer near one side surface of the first packaging layer, wherein the thickness of the first hydrophobic structure is larger than or equal to that of the first packaging layer.
The invention also provides electronic equipment comprising the display panel.
Therefore, according to the display panel provided by the invention, the first hydrophobic structure which is close to one side surface of the first packaging layer and is connected with the first packaging layer is arranged in the first area, the first hydrophobic structure blocks the diffusion of the organic film in the first packaging layer, and the first hydrophobic structure can enable the edge cut-off distance of the first packaging layer to be short, so that the width of the packaging layer between the first area and the second area is reduced, and the problem of discontinuous display is avoided. In addition, the display panel provided by the invention can be provided with the second hydrophobic structure surrounding the sub-packaging unit in the second area, so that the sub-pixels in the second area can be packaged at a pixel level. In addition, the height of the first encapsulation layer in the first area and the height of the second encapsulation layer in the second area can be controlled by setting the heights of the first hydrophobic structure and the second hydrophobic structure, when the height of the first encapsulation layer is consistent with the height of the second encapsulation layer, the first area and the second area have no visual line difference, and the display effect of the display panel is improved. When the height of the second packaging layer is lower than that of the first packaging layer, the packaging process of the second packaging layer can be simplified, for example, the second packaging layer can independently package the second sub-pixel only by adopting one inorganic film, and the tensile property of the second area can be enhanced. Furthermore, the display panel provided by the invention can also be provided with a third area which is positioned between the first area and the second area and used for transition, and the stretch-proof performance of the display panel is further enhanced through the third area.
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, so that the above is the core idea of the present invention, and the above objects, features and advantages of the present invention can be more clearly understood. 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.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present invention, the display panel includes a substrate 41, a sub-pixel 42, a first encapsulating layer 43, a second encapsulating layer 44, and a first hydrophobic structure 45.
Specifically, in the present embodiment, the substrate 41 includes a first area 411 and a second area 412, wherein the dividing manner of the first area and the second area is not limited in the present embodiment, for example, the substrate may be divided into a non-stretchable first area and a stretchable second area according to the stretchable property of the substrate. In addition, the substrate may be divided into a non-bendable first region and a bendable second region according to the bending property of the substrate.
In addition, in the present embodiment, the material of the substrate in the first area and the substrate in the second area are not limited, for example, the substrate 41 may be a flexible substrate having a stretchable, foldable, bendable or crimpable characteristic, and the flexible substrate is formed of a flexible insulating material, specifically, the insulating material may be Polyimide (PI), polycarbonate (PC) or polyethylene terephthalate (PET), and the like. Or the substrate located in the first area is a rigid substrate, such as a glass substrate, and the substrate located in the second area is the flexible substrate.
On the basis of the above embodiments, the present embodiment provides a display panel in which the sub-pixels 42 are disposed on one side of the substrate 41, and include a plurality of first sub-pixels 421 disposed in the first region 411 and a plurality of second sub-pixels 422 disposed in the second region 412. The first sub-pixel 421 and the second sub-pixel 422 can be set to have colors according to design requirements, such as any one of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.
In this embodiment, the first sub-pixel located in the first area is encapsulated by the first encapsulation layer 43, and specifically, at least the first sub-pixel 421 is covered by the first encapsulation layer 43. However, the structure of the first encapsulation layer 43 is not limited in this embodiment, for example, the first encapsulation layer 43 may be a structure of an inorganic film, an organic film and an inorganic film, and of course, the first encapsulation layer may also be another structure of an encapsulation layer, such as a structure of an inorganic film, an organic film, an inorganic film, an organic film and an inorganic film, and is not exhaustive here.
Different from the first encapsulating layer, in the present embodiment, the second encapsulating layer is used for encapsulating the second sub-pixel, and in combination with the above, the plurality of sub-pixels in the second region are encapsulated independently, that is, the second encapsulating layer 44 includes a plurality of sub-encapsulating units 441, wherein at least a first gap 442 exists between two adjacent sub-encapsulating units 441, and each sub-encapsulating unit 441 covers at least one second sub-pixel 422.
For example, in fig. 4, one sub-packaging unit 441a may cover only one second sub-pixel 422a, and one sub-packaging unit 441b may cover one pixel unit, and the pixel unit may include a plurality of second sub-pixels, such as a second sub-pixel 422b, a second sub-pixel 422c, and a second sub-pixel 422d.
It should be noted that in the display panel provided in this embodiment, the first hydrophobic structure 45 is disposed between the first area 411 and the second area 412, and the first hydrophobic structure 45 is close to a side surface of the first encapsulation layer 43, and is connected to the first encapsulation layer 43, and is used for blocking the first encapsulation layer 43 and preventing the organic film in the first encapsulation layer 34 from diffusing to the second area. Theoretically, the first hydrophobic structure 45 only needs to block the organic film in the first encapsulation layer 34, and in order to better block the first encapsulation layer 34, in this embodiment, the thickness d1 of the first hydrophobic structure 45 is preferably greater than or equal to the thickness d2 of the first encapsulation layer 43, so that the first hydrophobic structure 45 can completely block the first encapsulation layer 43 from diffusing to the second region 412.
Generally, the width of the first hydrophobic structure 45 is 10-20um, which is much smaller than the width 200-400um of the non-display area 321 in fig. 3, and therefore, in the display panel provided by this embodiment, the first hydrophobic structure can ensure that the edge cutoff distance of the first encapsulation layer is short, that is, the display discontinuity phenomenon between the first area and the second area does not occur, and further the display effect of the display panel is improved.
In addition, in the present embodiment, the height of the first hydrophobic structure 45 is related to the height of the first encapsulation layer 43, such as higher than the height of the first encapsulation layer 43, and is preferably 5-10um. Moreover, the display panel provided in the embodiment of the present invention does not limit the connection relationship between the first hydrophobic structure 45 and the second region 412, and as shown in fig. 4, the first hydrophobic structure 45 is located between the first region 411 and the second region 412, and is connected to the sub-package units close to the first region in the first package layer 43 and the second package layer at the same time. It is also possible, as shown in fig. 5, to have a second gap 51 between the first and second encapsulation layers, and then the first hydrophobic structure is arranged at this second gap and connected to the first encapsulation layer.
On the basis of the foregoing embodiment, in order to further increase the stretch-resistant performance of the first hydrophobic structure, as shown in fig. 6, fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention, in this embodiment, at least one groove 61 is formed on a surface of the first hydrophobic structure on a side away from the substrate, where an opening depth d3 of the groove is smaller than a thickness d1 of the first hydrophobic structure. When the display panel is stretched, the first hydrophobic structure is provided with the grooves, so that tensile stress acting on the first hydrophobic structure is isolated by the grooves, and the tensile stress acting on each part in the first hydrophobic structure is further reduced.
In this embodiment, the shape and distribution of the grooves in the first hydrophobic structure are not limited, and for example, as shown in fig. 6, grooves with a plurality of openings on the surface of the first hydrophobic structure away from the substrate may be formed in a groove forming manner. As shown in fig. 7, a first groove 71 having an opening on a side surface close to the substrate and a second groove 72 having an opening on a side surface far from the substrate may be formed in the first hydrophobic structure along the extending direction of the tensile stress. However, in any way of disposing the grooves, the tensile stress applied to the first hydrophobic structure may be dispersed by disposing the grooves in the extending direction of the tensile stress in the present embodiment.
In addition, in order to make the display effects of the first region and the second region closer, in this embodiment, the structure of the sub-packaging unit in the second display region is further defined, as shown in fig. 8, the sub-packaging unit 80 includes: a first inorganic film 81, a first organic film 82, a second inorganic film 83, and a second hydrophobic structure 84.
The first inorganic film layer 81 is located on one side of the substrate away from the second sub-pixel, the first organic film layer 82 is located on one side of the substrate away from the first inorganic film layer, the second inorganic film layer 83 is located on one side of the first organic film layer away from the first organic film layer, the second hydrophobic structure 84 surrounds the first organic film layer, and the thickness d4 of the second hydrophobic structure 84 is greater than or equal to the thickness of the first organic film layer 82. In the same way, because the second hydrophobic structure is arranged in the scheme, the second hydrophobic structure can block the diffusion of the first organic film 82, and the second water delivery structure can be prepared by an ink-jet printer. In addition, as the second hydrophobic structure surrounding the sub-packaging unit is arranged in the second area of the display panel provided by the invention, the sub-pixels in the second area can be subjected to pixel-level packaging.
Specifically, in the present embodiment, the first encapsulation layer 85 includes a third inorganic film layer 86, a second organic film layer 87 and a fourth inorganic film layer 88. In order to make the display effect of the first display area close to that of the second display area, in this embodiment, the thickness of the second encapsulation layer is set to be substantially the same as that of the first encapsulation layer, so that the difference between the line of sight of the first area and the line of sight of the second area when a user watches the display device is avoided.
Further, in this embodiment, each layer in the second region may be prepared simultaneously with each layer in the first region, for example, the first inorganic layer and the third inorganic layer are the same layer and the same material, or the first organic layer and the second organic layer are the same layer and the same material, or the second inorganic layer and the fourth inorganic layer are the same layer and the same material.
Certainly, each film layer in the second area may also be separately prepared from each film layer in the first area, for example, after the fabrication of the first encapsulation layer in the first area is completed, each film layer of each sub-encapsulation unit in the second area is prepared one by one, so as to implement a display panel in which the thickness of the sub-encapsulation unit in the second area is similar to that of the first encapsulation layer in the first area.
Preferably, in this embodiment, as shown in fig. 8, the widths of the plurality of second hydrophobic structures are set to be the same as the width of the first hydrophobic structure, so that the first hydrophobic structure and the second hydrophobic structure may adopt the same manufacturing process, and the difficulty of the manufacturing process of the second hydrophobic structure in the second region does not need to be additionally increased.
It should be noted that, in this embodiment, the width of the second hydrophobic structure refers to a width corresponding to w1 in fig. 8, rather than the width w2 of the whole sub-package unit. The second hydrophobic structure is disposed around the first organic film layer, and therefore, the second hydrophobic structure is a structure with a hollow interior, but in this embodiment, the shape of the periphery of the projection of the structure with a hollow interior on the substrate is not limited, and may be, for example, a circle or a rectangle.
As mentioned above, the second region may be a stretchable region and a bendable region, and then the tensile stress on each sub-package unit is different according to the deformation of the substrate. Generally, in the direction of the arrow in fig. 8, the tensile stress on the sub-packaging units in the second region closer to the first region is larger, and therefore, in order to further relieve the tensile stress on different sub-packaging units, the embodiment of the present invention further optimizes the second hydrophobic structure in the sub-packaging unit, for example, as shown in fig. 9, in two adjacent sub-packaging units, the width of the second hydrophobic structure in the sub-packaging unit closer to the first region is larger than the width of the second hydrophobic structure in the sub-packaging unit farther from the first region. For another example, as shown in fig. 10, in two adjacent sub-packaging units, the elastic modulus of the second hydrophobic structure in the sub-packaging unit close to the first area is smaller than the elastic modulus of the second hydrophobic structure in the sub-packaging unit far from the first area.
Specifically, referring to fig. 9, since the sub-package units in the second region closer to the first region have larger tensile stress, the width of the second hydrophobic structure in the sub-package units is set to be different, and the purpose of enhancing the tensile stress resistance is further achieved by increasing the width of the second hydrophobic structure, for example, in fig. 9, two adjacent sub-package units, such as the sub-package unit 91 and the sub-package unit 92, since the sub-package unit 91 is closer to the first region, in this embodiment, the width w3 of the second hydrophobic structure in the sub-package unit 91 is set to be larger than the width w4 of the second hydrophobic structure in the sub-package unit 92, so that the tensile resistance of the sub-package unit 91 is higher than the tensile resistance of the sub-package unit 92.
In the case that the second encapsulation layer for the second area includes a plurality of sub-encapsulation units, the width of the second hydrophobic structure may be gradually decreased along the X direction, for example, the width w3 of the second hydrophobic structure in the sub-encapsulation unit 91 is greater than the width w4 of the second hydrophobic structure in the sub-encapsulation unit 92 is greater than the width w5 of the second hydrophobic structure in the sub-encapsulation unit 93. In addition to this, it may be set that the width w3 of the second hydrophobic structure in the sub-packaging unit 91 is greater than the width w4 of the second hydrophobic structure in the sub-packaging unit 92, is equal to the width w5 of the second hydrophobic structure in the sub-packaging unit 93, is greater than the width w6 of the second hydrophobic structure in the sub-packaging unit 94, and so on.
In addition, referring to fig. 10, since the tensile stress of the sub-package unit in the second region is larger and the elastic modulus of the second hydrophobic structure in the sub-package unit is different, the purpose of enhancing the tensile stress resistance is further achieved by reducing the elastic modulus of the second hydrophobic structure, for example, in fig. 10, the elastic modulus k1 of the second hydrophobic structure in the sub-package unit 101 is smaller than the elastic modulus k2 of the second hydrophobic structure in the sub-package unit 102, and thus the tensile resistance of the sub-package unit 101 is higher than the tensile resistance of the sub-package unit 102, because the sub-package unit 101 is closer to the first region. Wherein, the smaller the elastic modulus is, the larger the elastic deformation of the second hydrophobic structure is, and the tensile stress resistance is stronger.
In the case where the second encapsulation layer for the second area includes a plurality of sub-encapsulation units, it is also possible to set the elastic modulus of the second hydrophobic structure to gradually increase along the X direction, for example, the elastic modulus k1 of the second hydrophobic structure in the sub-encapsulation unit 101 is smaller than the elastic modulus k2 of the second hydrophobic structure in the sub-encapsulation unit 102 is smaller than the elastic modulus k3 of the second hydrophobic structure in the sub-encapsulation unit 103. In addition to this, it may be arranged that the elastic modulus k1 of the second hydrophobic structure in the sub-packaging unit 101 is smaller than the elastic modulus k2 of the second hydrophobic structure in the sub-packaging unit 102, is equal to the elastic modulus k3 of the second hydrophobic structure in the sub-packaging unit 103, is smaller than the elastic modulus k4 of the second hydrophobic structure in the sub-packaging unit 104, and so on.
In addition, since the second region may also be a bendable region in this embodiment, the thickness of the second encapsulation layer in the second region may be less than or equal to the thickness of the first encapsulation layer in the first region, so as to reduce the overall thickness of the second region after the first region is bent after the second region is bent. For example, as shown in fig. 11, in the display panel, the sub-packaging unit 111 includes only a fifth inorganic film 112, and the fifth inorganic film 112 is located on a side of the second sub-pixel away from the substrate and covers at least one of the second sub-pixels. Specifically, the fifth inorganic film may be prepared from the same material as the first inorganic film in the first region, or may be prepared independently, for example, after the first encapsulation layer is prepared in the first region, the fifth inorganic film in the second region is prepared. Therefore, in the display panel provided by the invention, the second packaging layer can only adopt one layer of inorganic film, and the tensile property of the second area can be further improved because the sub-pixels of the second area are packaged at the pixel level and the second packaging layer is thinned. In this embodiment, the material of the inorganic film is not limited, and may be any one of SiOx, siNx, al2O3, and TiO.
On the basis of the foregoing embodiment, in the display panel provided in the embodiment of the present invention, as shown in fig. 12, the substrate may further include a third region 123 disposed between the first region 121 and the second region 122, where the third region 123 is disposed with at least one dummy sub-pixel 124. The display panel further includes a third hydrophobic structure 125 located between the first region 121 and the third region 123, and having a thickness greater than or equal to that of the first encapsulation layer. Because this embodiment further sets up the third hydrophobic structure on the basis of first hydrophobic structure, can further increase the stretch-proofing ability of the first encapsulated layer that first region is close to the second region, and then improve display panel's stretch-proofing performance.
In addition, in this embodiment, the thickness of the third hydrophobic structure may be the same as the thickness of the first hydrophobic structure, or may be smaller than the thickness of the first hydrophobic structure, for example, in fig. 12, the thickness of the first hydrophobic structure 125 is larger than the thickness of the first encapsulation layer, and the thickness of the third hydrophobic structure is larger than the thickness of the first organic film.
In summary, the present invention provides a display panel, including: the pixel structure comprises a substrate, sub-pixels, a first packaging layer, a second packaging layer and a first hydrophobic structure. Specifically, the substrate includes a first region and a second region, and the sub-pixels are located on one side of the substrate and include a plurality of first sub-pixels disposed in the first region and a plurality of second sub-pixels disposed in the second region. The first packaging layer at least covers the first sub-pixel, the second packaging layer comprises a plurality of sub-packaging units, each sub-packaging unit at least covers one second sub-pixel, and at least a first gap exists between every two adjacent sub-packaging units. It is worth mentioning that, in the display panel provided by the scheme, between the first region and the second region, the first hydrophobic structure which is close to one side surface of the first packaging layer and is connected with the first packaging layer and has the thickness larger than or equal to the thickness of the first packaging layer is arranged, and the first hydrophobic structure blocks the diffusion of an organic film in the first packaging layer, so that the width of the packaging layer between the first region and the second region is reduced, and the problem of discontinuous display is avoided.
An embodiment of the present invention further provides an electronic device, as shown in fig. 13, fig. 13 is a schematic structural diagram of the electronic device provided in the embodiment of the present invention, and the electronic device P includes the display panel provided in any one of the embodiments. The electronic device includes, but is not limited to, a mobile phone, a tablet computer, a digital camera, and the like.
On the basis of the foregoing embodiments, an embodiment of the present invention further provides a method for manufacturing a display panel, which is used for manufacturing the display panel, and as shown in fig. 14, the method includes the steps of:
s141, providing a substrate.
The substrate comprises a first area and a second area.
And S142, arranging a plurality of first sub-pixels on one side of the first area of the substrate, and arranging a plurality of second sub-pixels on one side of the second area of the substrate.
S143, arranging a first hydrophobic structure with the thickness larger than or equal to that of the first packaging layer between the first area and the second area.
And S144, arranging a first packaging layer on one side, far away from the substrate, of the sub-pixel in the first area.
S145, arranging a second packaging layer on one side, far away from the substrate, of the sub-pixel located in the second area.
The second packaging layer comprises a plurality of sub-packaging units, at least a second gap exists between every two adjacent sub-packaging units, and each sub-packaging unit at least covers one second sub-pixel.
By adopting the above steps, the display panel in the above embodiment is prepared, and in the display panel, the width of the first hydrophobic structure 45 is 10-20um, which is much smaller than the width of the original non-display area, which is 200-400um, so that the display discontinuity phenomenon between the first area and the second area does not occur in the display panel provided by this embodiment, and the display effect of the display panel is further improved.
On the basis of the above embodiment, an embodiment of the present invention further provides a specific implementation manner for setting the first encapsulation layer and the second encapsulation layer, including:
arranging a first inorganic film layer on one side of the sub-pixel far away from the substrate;
arranging a plurality of hollow second hydrophobic structures on the surface of the first inorganic film layer in the second area according to a preset pattern;
arranging a first organic film layer on one side of the first inorganic film layer far away from the sub-pixels;
and arranging a second inorganic film layer on one side of the first organic film layer far away from the first inorganic film layer.
Therefore, according to the scheme, after the first hydrophobic structure is prepared, the second hydrophobic structure is further arranged in the second area, so that the thickness of the film layer in the first area is basically the same as that of the film layer in the second area, and the display sight difference between the first area and the second area is avoided. In addition, the surface of the first hydrophobic structure may be provided with a groove to further improve the stretch-proof capability of the display panel, and the principle of the groove is described in the above embodiments of the display panel, which will not be described again.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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 (11)

1. A display panel, comprising:
a substrate comprising a first region and a second region, the first region being a non-stretchable region and the second region being a stretchable region;
a sub-pixel located at one side of the substrate, including a plurality of first sub-pixels disposed in the first region and a plurality of second sub-pixels disposed in the second region;
a first packaging layer at least covering the first sub-pixel;
the second packaging layer comprises a plurality of sub-packaging units, at least a first gap exists between every two adjacent sub-packaging units, and each sub-packaging unit at least covers one second sub-pixel;
the first hydrophobic structure is only positioned between the first area and the second area, the surface of one side, close to the first packaging layer, of the first hydrophobic structure is connected with the first packaging layer, and the thickness of the first hydrophobic structure is larger than or equal to that of the first packaging layer.
2. The display panel according to claim 1,
at least one groove is formed in the surface of one side, away from the substrate, of the first hydrophobic structure, and the opening depth of the groove is smaller than the thickness of the first hydrophobic structure.
3. The display panel of claim 1, wherein the sub-packaging unit comprises:
the first inorganic film layer is positioned on one side of the second sub-pixel far away from the substrate;
the first organic film layer is positioned on one side, far away from the substrate, of the first inorganic film layer;
the second inorganic film layer is positioned on one side of the first organic film layer far away from the first organic film layer;
and the second hydrophobic structure is arranged around the first organic film layer, and the thickness of the second hydrophobic structure is more than or equal to that of the first organic film layer.
4. The display panel according to claim 3,
in two adjacent sub-packaging units, the width of the second hydrophobic structure in the sub-packaging unit close to the first area is larger than that of the second hydrophobic structure in the sub-packaging unit far away from the first area.
5. The display panel according to claim 3,
in two adjacent sub-packaging units, the elastic modulus of the second hydrophobic structure in the sub-packaging unit close to the first area is smaller than that of the second hydrophobic structure in the sub-packaging unit far away from the first area.
6. The display panel according to claim 3, wherein the first encapsulation layer comprises a third inorganic film layer, a second organic film layer, and a fourth inorganic film layer;
the first inorganic film layer and the third inorganic film layer are made of the same material;
and/or the first organic film layer and the second organic film layer are made of the same material in the same layer;
and/or the second inorganic film layer and the fourth inorganic film layer are made of the same material.
7. The display panel according to claim 1, wherein a thickness of the first encapsulation layer is equal to or greater than a thickness of the second encapsulation layer.
8. The display panel according to claim 7, wherein the sub-packaging unit comprises:
and the fifth inorganic film is positioned on one side of the second sub-pixel, which is far away from the substrate, and at least covers one second sub-pixel.
9. The display panel according to claim 1, wherein the substrate further comprises a third region provided between the first region and the second region, the third region being provided with at least one dummy subpixel, the display panel further comprising:
and the third hydrophobic structure is positioned between the first area and the third area, and the thickness of the third hydrophobic structure is greater than or equal to that of the first packaging layer.
10. The display panel according to claim 3, wherein the second hydrophobic structure has a width that is the same as a width of the first hydrophobic structure.
11. An electronic device characterized by comprising a display panel according to any one of claims 1 to 10.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109256484A (en) * 2018-08-31 2019-01-22 云谷（固安）科技有限公司 A kind of display panel and preparation method thereof, display
CN110289293A (en) * 2019-06-27 2019-09-27 昆山工研院新型平板显示技术中心有限公司 Display panel and display device

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Publication number Priority date Publication date Assignee Title
KR102253531B1 (en) * 2014-07-25 2021-05-18 삼성디스플레이 주식회사 Display device and method for manufacturing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109256484A (en) * 2018-08-31 2019-01-22 云谷（固安）科技有限公司 A kind of display panel and preparation method thereof, display
CN110289293A (en) * 2019-06-27 2019-09-27 昆山工研院新型平板显示技术中心有限公司 Display panel and display device

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