Display panel and display device

Abstract

The present application provides a display panel and a display device. The display panel comprises a main body region and an anti-crack region. The anti-crack region is provided on at least one side of the main body region. The display panel further comprises a substrate, an anti-crack structure provided on the substrate, a display function layer provided on the substrate, a color filter layer provided on the surface of the display function layer facing away from the substrate, and a water absorption layer partially provided on the surface of the color filter layer facing away from the substrate.

Description

Display panel and display device Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Active-matrix organic light-emitting diode (AMOLED) display panels have advantages such as wide viewing angle, ultra-high contrast, and fast response due to their relatively complex circuit structure. However, they consume high power and generate severe heat under high-brightness conditions. SUMMARY OF THE INVENTION

[0003] The main reason for the high power consumption of AMOLED display panels at high brightness is the low transmittance of the polarizer. Based on this, related technologies use depolarization technology to reduce power consumption. Display panels using depolarization technology remove the polarizer and use a black matrix and color filter to block the reflection of external ambient light. Therefore, water vapor intrusion is common during reliability testing. Without the polarizer to assist in water absorption, materials such as the black matrix and color filter will outgas due to water vapor intrusion and high temperature, which can cause problems such as touch performance failure and poor appearance.

[0004] Therefore, it is necessary to provide a display panel and a display device to improve this defect.

[0005] The embodiments of the present application provide a display panel and a display device that can prevent external water vapor from invading the interior of the display panel, thereby avoiding touch performance failure and poor appearance caused by water vapor intrusion, thereby improving the reliability of the display panel using depolarizer technology.

[0006] An embodiment of the present application provides a display panel, comprising a main body region and an anti-crack region, wherein the anti-crack region is provided on at least one side of the main body region. The display panel further comprises:

[0007] substrate;

[0008] an anti-crack structure, disposed on the substrate, wherein the anti-crack structure is located in the anti-crack area;

[0009] A display function layer is provided on the substrate;

[0010] a color filter layer, disposed on a surface of the display function layer facing away from the substrate;

[0011] A water absorbing layer is partially provided on the surface of the color filter layer away from the substrate. The water absorbing layer is continuously laid from the main area to the side of the anti-crack structure away from the main area, and the water absorbing layer covers the anti-crack structure.

[0012] An embodiment of the present application further provides a display device, wherein the display decoration includes a display panel, the display panel including a main body area and an anti-crack area, the anti-crack area being provided on at least one side of the main body area, and the display panel further includes:

[0013] substrate;

[0014] an anti-crack structure, disposed on the substrate, wherein the anti-crack structure is located in the anti-crack area;

[0015] A display function layer is provided on the substrate;

[0016] a color filter layer, disposed on a surface of the display function layer facing away from the substrate;

[0017] A water absorbing layer is partially provided on the surface of the color filter layer away from the substrate. The water absorbing layer is continuously laid from the main area to the side of the anti-crack structure away from the main area, and the water absorbing layer covers the anti-crack structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below only disclose some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] FIG1 is a schematic diagram of a film structure of a display panel provided in a first embodiment of the present application;

[0020] FIG2 is a schematic diagram of a film structure of a display panel provided in a second embodiment of the present application;

[0021] FIG3 is a schematic diagram of a film structure of a display panel provided in a third embodiment of the present application;

[0022] FIG4 is a schematic diagram of the film structure of a display panel provided in a fourth embodiment of the present application. Modes for Carrying Out the Invention

[0023] The following descriptions of the various embodiments refer to the accompanying figures to illustrate specific embodiments in which the present disclosure may be implemented. Directional terms used in this disclosure, such as "up," "down," "front," "back," "left," "right," "inside," "outside," and "side," refer only to the directions in the accompanying figures. Therefore, these directional terms are intended to illustrate and facilitate understanding of the present disclosure and are not intended to limit the present disclosure. In the figures, similarly structured elements are denoted by the same reference numerals.

[0024] The present disclosure is further described below with reference to the accompanying drawings and specific embodiments:

[0025] An embodiment of the present application provides a display panel, comprising a main area and an anti-crack area, wherein the anti-crack area is arranged on at least one side of the main area, and the display panel further comprises: a substrate; an anti-crack structure, arranged on the substrate, and the anti-crack structure is located in the anti-crack area; a display function layer, arranged on the substrate; a color filter layer, arranged on the surface of the display function layer facing away from the substrate; a water absorption layer, partially arranged on the surface of the color filter layer facing away from the substrate, the water absorption layer is continuously laid from the main area to the side of the anti-crack structure facing away from the main area, and the water absorption layer covers the anti-crack structure, which can prevent external water vapor from invading the interior of the display panel, avoiding touch performance failure and poor appearance caused by water vapor intrusion, thereby improving the reliability of the display panel using depolarizer technology.

[0026] According to an embodiment of the present application, the display panel further includes a touch layer, the touch layer being disposed between the color filter layer and the display function layer, the touch layer including a touch insulating layer and a touch metal layer stacked on the touch insulating layer, the touch insulating layer being continuously laid from the main body region to a side of the anti-crack structure facing away from the main body region and covering the anti-crack structure;

[0027] Wherein, in the anti-crack area, the side of the touch insulating layer is located between the side of the water absorbing layer and the anti-crack structure, and the water absorbing layer covers the side of the touch insulating layer.

[0028] According to an embodiment of the present application, the touch layer includes two touch metal layers and at least two touch insulation layers, wherein one touch insulation layer is disposed between the two touch metal layers, and another touch insulation layer is disposed between the color filter layer and the touch metal layer;

[0029] Wherein, in the anti-crack area, the side edges of at least two touch insulating layers are flush with each other, and the water absorption layer covers the side edges of at least two touch insulating layers.

[0030] According to an embodiment of the present application, the display panel further includes a planar layer, the planar layer being disposed between the water absorption layer and the color filter layer, and the planar layer being continuously laid from the main area to the anti-crack area;

[0031] Wherein, in the anti-crack area, the side of the flat layer is located between the side of the water-absorbing layer and the anti-crack structure, and the water-absorbing layer covers the side of the flat layer.

[0032] According to an embodiment of the present application, in the anti-crack area, a side edge of the planar layer is flush with a side edge of the touch insulating layer.

[0033] According to an embodiment of the present application, in the anti-crack area, a side edge of the water absorption layer is flush with a side edge of the substrate.

[0034] According to an embodiment of the present application, the anti-crack structure includes:

[0035] at least one anti-crack dam disposed on the substrate;

[0036] at least one anti-crack groove, provided on a side of the anti-crack dam close to the main region or between two adjacent anti-crack dams, the bottom of the anti-crack groove being the substrate;

[0037] Wherein, the water absorption layer covers the anti-crack dam and the anti-crack groove.

[0038] According to an embodiment of the present application, the water-absorbing layer includes at least two water-absorbing substrate layers and a nano water-absorbing material film disposed between two adjacent water-absorbing substrate layers.

[0039] According to an embodiment of the present application, the display panel further includes a protective layer, and the protective layer is disposed on a surface of the water absorption layer facing away from the substrate.

[0040] According to an embodiment of the present application, the display panel further includes a hydrophobic layer, which is laid on a surface of the water-absorbing layer, and the protective layer is disposed on a surface of the hydrophobic layer facing away from the substrate.

[0041] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a display panel, which includes a main area and an anti-crack area, the anti-crack area is arranged on at least one side of the main area, and the display panel also includes a substrate, an anti-crack structure arranged on the substrate, a display function layer arranged on the substrate, a color filter layer arranged on the surface of the display function layer facing away from the substrate, and a water-absorbing layer partially arranged on the surface of the color filter layer facing away from the substrate. By laying the water-absorbing layer on the surface of the color filter layer, the water-absorbing layer is continuously laid from the main area to the side of the anti-crack structure facing away from the main area, so that the water-absorbing layer covers the anti-crack structure, and the water-absorbing layer absorbs water vapor to prevent water vapor from invading the color filter layer and the display function layer. In this way, failure of touch performance and poor appearance caused by water vapor intrusion can be avoided, thereby improving the reliability of the display panel using depolarizer technology.

[0042] Please refer to FIG1 , which is a schematic diagram of the film structure of a display panel provided in the first embodiment of the present application. The display panel includes a main area A1 and an anti-crack area A2 , and the anti-crack area A2 is arranged on at least one side of the main area A1 .

[0043] It should be noted that the main area A1 refers to the area of ​​the display panel used to achieve the display function. The main area A1 may include but is not limited to the display area, the wiring area arranged around the display area, and the terminal area arranged below the display area. The display area may be provided with multiple sub-pixels and pixel drive circuits for controlling and driving the sub-pixels to emit light. The wiring area may be provided with but is not limited to gate drive circuits and related signal wiring. The terminal area may be provided with but is not limited to source drive circuits, fan-out wiring, and terminals for binding and connecting integrated circuit chips or flexible circuit boards. The anti-crack area A2 can be provided outside the wiring area. The anti-crack area A2 does not have circuits or signal wiring and therefore does not have the function of displaying or transmitting signals.

[0044] In one embodiment, the anti-crack zone A2 is continuously provided around the left and right sides and the upper side of the main body area A1, and the anti-crack zone A2 does not need to be provided on the lower side of the main body area A1. In other embodiments, the range of the anti-crack zone A2 can be set according to actual needs. For example, the anti-crack zone A2 can be provided on any one or more of the left side, right side, upper side, and lower side of the main body area A1, and this is not a sole limitation here.

[0045] The display panel includes a substrate 1, an anti-crack structure 11, a display functional layer 2 and a color filter layer 3. The anti-crack structure 11 is arranged on the substrate 1, the display functional layer 2 is arranged on the substrate 1, and the color filter layer 3 is arranged on the surface of the display functional layer 2 facing away from the substrate 1.

[0046] In some embodiments, the display panel further includes a heat dissipation composite layer 12, which is disposed on the surface of the substrate 1 facing away from the display function layer 2. The heat dissipation composite layer 12 is a composite film structure and may include, but is not limited to, a laminated buffer foam layer and a heat dissipation metal layer. An adhesive layer 13 is also disposed between the heat dissipation composite layer 12 and the substrate 1, and the heat dissipation composite layer 12 is adhered to the surface of the substrate 1 facing away from the display function layer 2 via the adhesive layer 13.

[0047] In actual applications, a backplane (not shown in the figure) may also be provided between the heat dissipation composite layer 12 and the substrate 1. The display panel may have multiple adhesive layers. The backplane is adhered to the surface of the substrate 1 facing away from the display function layer 2 through one of the adhesive layers, and the heat dissipation composite layer 12 is adhered to the surface of the backplane facing away from the substrate 1 through another adhesive layer.

[0048] As shown in Figure 1 , the display function layer 2 includes an inorganic insulating layer, a metal layer, a first planarization layer 22, a first electrode layer 23, a pixel definition layer 24, a second electrode layer 25, and an encapsulation layer 26, stacked on a substrate 1. It should be noted that the display function layer 2 may include two or more inorganic insulating layers and two or more metal layers. Figure 1 only illustrates one metal layer 21, and does not illustrate the inorganic insulating layer.

[0049] A plurality of retaining walls are formed on the substrate 1, such as the first retaining wall DAM1 and the second retaining wall DAM2 in Figure 1. The first retaining wall DAM1 and the second retaining wall DAM2 are arranged in the main area A1 and are located at the edge of the main area A1 close to the anti-crack area A2. The first retaining wall DAM1 and the second retaining wall DAM2 are both arranged around the display area, and the second retaining wall DAM2 is located on the periphery of the first retaining wall DAM1.

[0050] The first retaining wall DAM1 and the second retaining wall DAM2 can both be single-layer structures or multi-layer structures. When the first retaining wall DAM1 is a single-layer structure, the first retaining wall DAM1 can be made of the same material and process as any one of the first planar layer 22 and the pixel definition layer 24. When the first retaining wall DAM1 is a multi-layer structure, any layer of the first retaining wall DAM1 can be made of the same material and process as the corresponding layer of the first planar layer 22 and the pixel definition layer 24.

[0051] The encapsulation layer 26 is a thin film encapsulation structure, specifically comprising a first inorganic encapsulation layer 261, an organic encapsulation layer 262, and a second inorganic encapsulation layer 263, stacked sequentially on the second electrode layer 25. The first and second inorganic encapsulation layers 261, 263 are laid continuously in the main body area A1, with their sides (i.e., edges) extending to the side of the second retaining wall near the anti-crack area A2. The organic encapsulation layer 262 is sandwiched between the first and second inorganic encapsulation layers 261, 263. Its sides (i.e., edges) are blocked by the first retaining wall DAM1 and are located only within the area enclosed by the first retaining wall DAM1. This prevents the organic material in the organic encapsulation layer 262 from overflowing and potentially causing encapsulation failure.

[0052] As shown in Figure 1, the anti-crack structure 11 is located in the anti-crack area A2 and is arranged around the main area A1. The function of the anti-crack structure 11 is to prevent cracks generated during the cutting process from extending to the main area A1.

[0053] In some embodiments, the anti-crack structure 11 includes at least one anti-crack dam 112 and at least one anti-crack groove 111. The anti-crack groove 111 is arranged on the side of the anti-crack dam 112 close to the main area A1 or between two adjacent anti-crack dams 112. The bottom of the anti-crack groove 111 is the substrate 1, and the water absorption layer 4 covers the anti-crack dam 112 and the anti-crack groove 111.

[0054] The entire surface of the inorganic insulating layer in the display functional layer 2 is laid in the main area A1 and the anti-crack area A2. In the anti-crack area A2, anti-crack grooves 111 and anti-crack dams 112 can be formed by etching one or more inorganic insulating layers in the display functional layer 2. The anti-crack grooves 111 can penetrate all the inorganic insulating layers in the display functional layer 2 and expose the surface of the substrate 1.

[0055] In one embodiment, as shown in FIG1 , the anti-crack area A2 has two spaced anti-crack dams 112 and two anti-crack grooves 111, one of which is disposed between the two anti-crack dams 112, and the other anti-crack groove 111 is disposed on the side of the anti-crack dam 112 closer to the main area A1. In practical applications, the number of anti-crack dams 112 can be varied according to actual needs and is not limited to the two in the above embodiment, but can also be one, three, or more. The number of anti-crack grooves 111 matches the number of anti-crack dams 112 and is not limited here.

[0056] The color filter layer 3 includes multiple color resists 31 and a black matrix 32. The display function layer 2 also includes multiple light-emitting layers. The color resists 31 are arranged in a one-to-one correspondence with the light-emitting layers, and the black matrix 32 fills the gaps between adjacent color resists 31. The color of the color resists 31 can be selected from any one of red, green, and blue. The color filter layer 3 can have color resists 31 of multiple colors.

[0057] The display panel also includes a water-absorbing layer 4, which is partially arranged on the surface of the color filter layer 3 facing away from the substrate 1. The water-absorbing layer 4 is continuously laid from the main area A1 to the side of the anti-crack structure 11 facing away from the main area A1. The water-absorbing layer 4 covers the film layer between the water-absorbing layer 4 and the substrate 1 and the anti-crack structure 11.

[0058] As shown in Figure 1, the water-absorbing layer 4 is continuously laid from the main body area A1 to the side of the anti-crack structure 11 facing away from the main body area A1. The edge of the water-absorbing layer 4 is in contact with the surface of the substrate 1 or the edge of the inorganic insulating layer 21 exposed on the side of the anti-crack structure 11 facing away from the main body area A1. The water-absorbing layer 4 and the substrate 1 or the inorganic insulating layer 21 enclose a cavity, and the film layer between the water-absorbing layer 4 and the substrate 1 and the anti-crack structure 11 are all enclosed in the cavity. The material of the water-absorbing layer 4 is an organic material that has the function of absorbing water vapor and can absorb most of the water vapor, thereby preventing external water vapor from invading the interior of the display panel, avoiding touch performance failure and poor appearance caused by water vapor intrusion, and thus improving the reliability of the display panel using depolarizer technology.

[0059] In some embodiments, the display panel further includes a touch layer 5, which is disposed between the color filter layer 3 and the display function layer 2. The touch layer 5 comprises a touch insulation layer and a touch metal layer stacked on the touch insulation layer. The touch insulation layer extends continuously from the main body area A1 to the side of the anti-crack structure 11 facing away from the main body area A1 and covers the anti-crack structure 11. In the anti-crack area A2, the side edges of the touch insulation layer are located between the side edges of the water-absorbing layer 4 and the anti-crack structure 11, and the water-absorbing layer 4 covers the side edges of the touch insulation layer. In this structure, the water-absorbing layer 4 covering the side edges of the touch insulation layer can prevent moisture from invading the touch metal layer and causing touch performance failure.

[0060] In some embodiments, the touch layer 5 includes two touch metal layers and at least two touch insulation layers, one of which is disposed between the two touch metal layers, and the other between the color filter layer and the touch metal layer. In the anti-crack region, the sides of at least the two touch insulation layers are flush, and the water-absorbing layer covers the sides of at least the two touch insulation layers. With this structure, the touch insulation layer can be used to separate the touch metal layer from the color filter layer, preventing direct contact between the color filter layer and the touch metal layer from corroding the circuitry in the touch metal layer and affecting touch performance, thereby improving the reliability of the display panel.

[0061] In one specific embodiment, as shown in FIG1 , the touch layer 5 includes a first touch insulating layer 51, a first touch metal layer 52, a second touch insulating layer 53, a second touch metal layer 54, and a third touch insulating layer 55, sequentially stacked on the display function layer 2. At least one of the first touch metal layer 52 and the second touch metal layer 54 may have touch electrodes, and at least the other of the first touch metal layer 52 and the second touch metal layer 54 may have touch signal traces. By disposing the third touch metal layer 55 between the second touch metal layer 54 and the color filter layer 3 and separating the second touch metal layer 54 from the color filter layer 3, direct contact between the color filter layer 3 and the second touch metal layer 54 can be prevented from corroding the circuits.

[0062] In one embodiment, the first touch insulating layer 51, the second touch insulating layer 53, and the third touch insulating layer 55 are made of the same material, namely silicon nitride. In other embodiments, the first touch insulating layer 51, the second touch insulating layer 53, and the third touch insulating layer 55 may be made of the same material or different materials. The materials of the first touch insulating layer 51, the second touch insulating layer 53, and the third touch insulating layer 55 may all be selected from transparent inorganic insulating materials such as silicon nitride, silicon oxide, or silicon oxynitride, without limitation.

[0063] Furthermore, in the anti-crack area A2, the first touch insulation layer 51, the second touch insulation layer 53, and the third touch insulation layer 55 all cover the anti-crack dams 112 and the anti-crack grooves 111. The sides of the first touch insulation layer 51 are flush with the sides of the second touch insulation layer 53 and the third touch insulation layer 55. The water-absorbing layer 4 covers the sides of the first, second, and third touch insulation layers 51, 53, and 55. With this structure, the third touch metal layer 55 can be used to separate the second touch metal layer 54 from the color filter layer 3, thereby preventing direct contact between the color filter layer 3 and the second touch metal layer 54 and causing corrosion to the circuits. Furthermore, the water-absorbing layer 4 can cover the sides of the first, second, and third touch insulation layers 51, 53, and 55, reducing the risk of moisture intrusion.

[0064] In some other embodiments, the touch layer 5 may also have only two touch insulation layers, that is, the touch layer 5 is composed of a first touch insulation layer 51, a first touch metal layer 52, a second touch insulation layer 53 and a second touch metal layer 54 stacked in sequence on the display function layer 2, and the color filter layer 3 can be directly formed on the second touch metal layer 54.

[0065] In the embodiment of the present application, the touch type of the display panel may be self-capacitive touch or mutual-capacitive touch, which is not limited here.

[0066] In some embodiments, the display panel further includes a planar layer 6 disposed between the water-absorbing layer 4 and the color filter layer 3. The planar layer 6 extends continuously from the main area A1 to the side of the anti-crack structure 11 facing away from the main area A1. In the anti-crack area A2, the side edges (i.e., edges) of the planar layer 6 are located between the side edges (i.e., edges) of the water-absorbing layer 4 and the anti-crack structure 11, with the water-absorbing layer 4 covering the side edges of the planar layer 6. The planar layer 6 is made of a transparent organic material with strong water absorption. Covering the side edges of the planar layer 6 with the water-absorbing layer 4 can reduce the degree of water absorption by the side edges of the planar layer 6, thereby reducing the risk of water vapor intrusion into the color filter layer 3, the touch layer 5, and the display function layer 2.

[0067] In one embodiment, in the anti-crack area A2, the sides of the planar layer 6 are flush with the sides of the touch insulation layer. As shown in Figure 1, in the anti-crack area A2, the sides of the planar layer 6 are retracted to be flush with the sides of the first touch insulation layer 51, the second touch insulation layer 53, and the third touch insulation layer 55. This structure reduces the thickness of the sides of the planar layer 6, thereby further reducing the degree of water absorption by the sides of the planar layer 6, thereby further reducing the risk of water vapor intrusion into the color filter layer 3, the touch layer 5, and the display function layer 2.

[0068] In a specific embodiment, as shown in Figure 2, Figure 2 is a schematic diagram of the film layer structure of the display panel provided in the second embodiment of the present application. Its structure is roughly the same as the structure of the display panel shown in Figure 1, with the difference that: the side of the flat layer 6 is not flush with the side of the first touch insulation layer 51, the second touch insulation layer 53 and the third touch insulation layer 55.

[0069] As shown in FIG2 , the side of the flattening layer 6 is located on the side of the first touch insulating layer 51, the second touch insulating layer 53, and the third touch insulating layer 55 facing away from the main body area A1, and covers the side of the first touch insulating layer 51, the second touch insulating layer 53, and the third touch insulating layer 55. The water-absorbing layer 4 covers the side of the flattening layer 6. In this way, the flattening layer 6 and the water-absorbing layer 4, which have good water absorption properties, can be used to gradually cover the color filter layer 3, the touch layer 5, and the display function layer 2. This can further reduce the risk of water vapor intrusion into the color filter layer 3, the touch layer 5, and the display function layer 2, thereby improving the reliability of the display panel.

[0070] In some other embodiments, when the side of the flat layer 6 is not flush with the side of the first touch insulation layer 51, the second touch insulation layer 53, and the third touch insulation layer 55, the edge of the flat layer 6 may also be further retracted to the side of the first touch insulation layer 51, the second touch insulation layer 53, and the third touch insulation layer 55 close to the main area A1, and does not cover the side of the first touch insulation layer 51, the second touch insulation layer 53, and the third touch insulation layer 55.

[0071] In a specific embodiment, as shown in FIG1 , in the anti-crack area A2, the side of the water-absorbing layer 4 is flush with the side of the substrate 1. It should be noted that the film structure of the display panel shown in FIG1 is the film structure of the display panel after secondary cutting, and the side of the substrate 1 is the cutting line during the secondary cutting. Before cutting, the side of the water-absorbing layer 4 expands outward to be flush with the secondary cutting line, or can also be further expanded outward to the side of the secondary cutting line away from the main area A1; during the secondary cutting, the cutting device cuts the display panel along the secondary cutting line to obtain the display panel shown in FIG1 , in which the side of the water-absorbing layer 4 is flush with the side of the substrate 1 and is also flush with the secondary cutting line.

[0072] In one embodiment, the material of the water-absorbing layer 4 is polyethylene glycol terephthalate (PET).

[0073] In some embodiments, the material of the water-absorbing layer 4 includes a water-absorbing resin.

[0074] In some embodiments, the material of water-absorbing layer 4 is composed of polyethylene terephthalate and a water-absorbing resin, with the mass of the water-absorbing resin accounting for greater than or equal to 30% and less than or equal to 50% of the total mass of the material of water-absorbing layer 4. By adding a water-absorbing resin with good water absorption to water-absorbing layer 4, the water absorption rate of water-absorbing layer 4 can be further increased, so that water-absorbing layer 4 has a water absorption rate that is the same as or similar to that of a polarizer, thereby improving the reliability of the display panel while implementing depolarization technology.

[0075] In some embodiments, the water-absorbing resin is selected from at least one of polyacrylates, polyvinyl alcohols, polyoxyalkylenes, polyurethanes, general-purpose acrylates, and casein. When the water-absorbing resin is a polyacrylate, the water-absorbing resin can specifically be sodium polyacrylate.

[0076] In some embodiments, the water-absorbing layer 4 includes at least two water-absorbing substrate layers and a nano water-absorbing material film disposed between the two adjacent water-absorbing substrate layers.

[0077] Please refer to Figure 3, which is a schematic diagram of the film structure of a display panel provided in a third embodiment of the present application. Its structure is substantially the same as that of the display panel shown in Figure 1, with the following differences: Water-absorbing layer 4 includes two water-absorbing substrate layers 41 and a nano-water-absorbing material film 42 disposed between adjacent water-absorbing substrate layers 41. By sandwiching the nano-water-absorbing material film between the water-absorbing substrate layers 41 of water-absorbing layer 4, the water absorption rate of water-absorbing layer 4 can be increased, thereby improving the reliability of the display panel.

[0078] In one embodiment, the water-absorbing substrate layer 41 is made of polyethylene terephthalate, and the nano-water-absorbing material film 42 is made of cobalt-complex-based super-hygroscopic material (Co-SHM), which is mainly composed of cobalt chloride and ethanolamine.

[0079] In some other embodiments, the specific number of water-absorbing substrate layers 41 and nano water-absorbing material films 42 can be set according to the water absorption rate requirements. The number of water-absorbing substrate layers 41 in the water-absorbing layer 4 is not limited to 2 layers in the above embodiment, but can also be 3 layers or 4 layers or more. The number of nano water-absorbing material films 42 can be adapted to the number of water-absorbing substrate layers 41, and there is no restriction here.

[0080] In a specific embodiment, please refer to Figure 4, which is a schematic diagram of the film layer structure of the display panel provided in the fourth embodiment of the present application. Its structure is roughly the same as the structure of the display panel shown in Figure 1, with the difference that: the display panel also includes a hydrophobic layer 7, and the hydrophobic layer 7 is laid on the surface of the water-absorbing layer 4.

[0081] In some embodiments, the material of the hydrophobic layer 7 may be an organosilane-based material, such as octadecyltrichlorosilane.

[0082] During the actual preparation process, the hydrophobic layer 7 can be formed on the surface of the water-absorbing layer 4 by chemical vapor deposition, and covers the water-absorbing layer 4. In this way, the hydrophobic layer 7 can be used to block external water vapor, reduce the water absorption of the water-absorbing layer 4, and prevent external water vapor from invading the interior of the display panel, thereby further improving the reliability of the display panel.

[0083] In some embodiments, the display panel further includes a protective layer 8 , which is disposed on the surface of the water absorption layer 4 facing away from the substrate 1 .

[0084] In a specific embodiment, as shown in Figure 1, the display panel also includes a protective layer 8 and an adhesive layer 9. The protective layer 8 is arranged on the surface of the water-absorbing layer 4 facing away from the substrate 1. The adhesive layer 9 is filled between the protective layer 8 and the water-absorbing layer 4. The adhesive layer 9 is used to adhere the protective layer 8 to the surface of the water-absorbing layer 4.

[0085] In a specific embodiment, as shown in Figure 4, the hydrophobic layer 7 is laid on the surface of the water-absorbing layer 4, the protective layer 8 is arranged on the surface of the hydrophobic layer 7 facing away from the substrate 1, and an adhesive layer 9 is provided between the protective layer 8 and the water-absorbing layer 4. The adhesive layer 9 is used to adhere the protective layer 8 to the surface of the hydrophobic layer 7.

[0086] In one embodiment, the protective layer 8 is a glass cover plate, and the material of the adhesive layer 9 is transparent optical adhesive.

[0087] According to the display panel provided in the above embodiments of the present application, an embodiment of the present application further provides a display device, which includes the display panel provided in any one of the above embodiments.

[0088] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a display panel, which includes a main area and an anti-crack area, the anti-crack area is arranged around the main area, the display panel also includes a substrate, an anti-crack structure arranged on the substrate, a display function layer arranged on the substrate, a color filter layer arranged on the surface of the display function layer facing away from the substrate, and a water-absorbing layer partially arranged on the surface of the color filter layer facing away from the substrate. By laying the water-absorbing layer on the surface of the color filter layer, the water-absorbing layer is continuously laid from the main area to the side of the anti-crack structure facing away from the main area, so that the water-absorbing layer covers the film layer between the water-absorbing layer and the substrate and the anti-crack structure, and the water-absorbing layer absorbs water vapor to prevent water vapor from invading the color filter layer and the display function layer. In this way, failure of touch performance and poor appearance caused by water vapor intrusion can be avoided, thereby improving the reliability of the display panel using depolarizer technology.

[0089] In summary, although the present application is disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present application. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application is based on the scope defined by the claims.

Claims

1. A display panel, comprising a main area and an anti-crack area, wherein the anti-crack area is arranged on at least one side of the main area, and the display panel further comprises: substrate; An anti-crack structure is disposed on the substrate, wherein the anti-crack structure is located in the anti-crack area; A display function layer is disposed on the substrate; A color filter layer is disposed on a surface of the display function layer facing away from the substrate; The water absorbing layer is partially arranged on the surface of the color filter layer away from the substrate, and the water absorbing layer is continuously laid from the main area to the side of the anti-crack structure away from the main area, and the water absorbing layer covers the anti-crack structure.

2. The display panel according to claim 1, wherein: The display panel further includes a touch layer, the touch layer is arranged between the color filter layer and the display function layer, the touch layer includes a touch insulating layer and a touch metal layer stacked with the touch insulating layer, the touch insulating layer is continuously laid from the main body area to a side of the anti-crack structure away from the main body area and covers the anti-crack structure; Wherein, in the anti-crack area, the side edge of the touch insulating layer is located between the side edge of the water absorbing layer and the anti-crack structure, and the water absorbing layer covers the side edge of the touch insulating layer.

3. The display panel according to claim 2, wherein: The touch layer includes two touch metal layers and at least two touch insulation layers, wherein one touch insulation layer is disposed between the two touch metal layers, and the other touch insulation layer is disposed between the color filter layer and the touch metal layer; Wherein, in the anti-crack area, the side edges of at least two layers of the touch insulating layers are flush, and the water absorption layer covers the side edges of at least two layers of the touch insulating layers.

4. The display panel according to claim 2, wherein: The display panel further comprises a flat layer, wherein the flat layer is disposed between the water absorption layer and the color filter layer, and the flat layer is continuously laid from the main area to the anti-crack area; Wherein, in the anti-crack area, the side edge of the flat layer is located between the side edge of the water absorbing layer and the anti-crack structure, and the water absorbing layer covers the side edge of the flat layer.

5. The display panel according to claim 4, wherein: In the anti-crack area, a side edge of the planar layer is flush with a side edge of the touch insulating layer.

6. The display panel according to claim 1, wherein: In the anti-crack area, the side edge of the water absorption layer is flush with the side edge of the substrate.

7. The display panel according to claim 1, wherein: The anti-crack structure comprises: at least one anti-crack dam disposed on the substrate; at least one anti-crack groove, arranged on a side of the anti-crack dam close to the main region or between two adjacent anti-crack dams, the bottom of the anti-crack groove being the substrate; Wherein, the water absorbing layer covers the anti-crack dam and the anti-crack groove.

8. The display panel according to claim 1, wherein: The water absorbing layer comprises at least two water absorbing substrate layers and a nano water absorbing material film arranged between two adjacent water absorbing substrate layers.

9. The display panel according to claim 1, wherein: The display panel further includes a protective layer, which is disposed on a surface of the water absorption layer facing away from the substrate.

10. The display panel according to claim 9, wherein: The display panel further comprises a hydrophobic layer, wherein the hydrophobic layer is laid on the surface of the water absorbing layer, and the protective layer is arranged on the surface of the hydrophobic layer facing away from the substrate.

11. A display device, comprising a display panel, the display panel comprising a main area and an anti-crack area, the anti-crack area being arranged on at least one side of the main area, the display panel further comprising: substrate; An anti-crack structure is disposed on the substrate, wherein the anti-crack structure is located in the anti-crack area; A display function layer is disposed on the substrate; A color filter layer is disposed on a surface of the display function layer facing away from the substrate; The water absorbing layer is partially arranged on the surface of the color filter layer away from the substrate, and the water absorbing layer is continuously laid from the main area to the side of the anti-crack structure away from the main area, and the water absorbing layer covers the anti-crack structure.

12. The display device according to claim 11, wherein: The display panel further includes a touch layer, the touch layer is arranged between the color filter layer and the display function layer, the touch layer includes a touch insulating layer and a touch metal layer stacked with the touch insulating layer, the touch insulating layer is continuously laid from the main body area to a side of the anti-crack structure away from the main body area and covers the anti-crack structure; Wherein, in the anti-crack area, the side edge of the touch insulating layer is located between the side edge of the water absorbing layer and the anti-crack structure, and the water absorbing layer covers the side edge of the touch insulating layer.

13. The display device according to claim 12, wherein: The touch layer includes two touch metal layers and at least two touch insulation layers, wherein one touch insulation layer is disposed between the two touch metal layers, and the other touch insulation layer is disposed between the color filter layer and the touch metal layer; Wherein, in the anti-crack area, the side edges of at least two layers of the touch insulating layers are flush, and the water absorption layer covers the side edges of at least two layers of the touch insulating layers.

14. The display device according to claim 12, wherein: The display panel further comprises a flat layer, wherein the flat layer is disposed between the water absorption layer and the color filter layer, and the flat layer is continuously laid from the main area to the anti-crack area; Wherein, in the anti-crack area, the side edge of the flat layer is located between the side edge of the water absorbing layer and the anti-crack structure, and the water absorbing layer covers the side edge of the flat layer.

15. The display device according to claim 14, wherein: In the anti-crack area, a side edge of the planar layer is flush with a side edge of the touch insulating layer.

16. The display device according to claim 11, wherein: In the anti-crack area, the side edge of the water absorption layer is flush with the side edge of the substrate.

17. The display device according to claim 11, wherein: The anti-crack structure comprises: at least one anti-crack dam disposed on the substrate; at least one anti-crack groove, arranged on a side of the anti-crack dam close to the main region or between two adjacent anti-crack dams, the bottom of the anti-crack groove being the substrate; Wherein, the water absorbing layer covers the anti-crack dam and the anti-crack groove.

18. The display device according to claim 11, wherein: The water absorbing layer comprises at least two water absorbing substrate layers and a nano water absorbing material film arranged between two adjacent water absorbing substrate layers.

19. The display device according to claim 11, wherein: The display panel further includes a protective layer, which is disposed on a surface of the water absorption layer facing away from the substrate.

20. The display device according to claim 19, wherein: The display panel further comprises a hydrophobic layer, wherein the hydrophobic layer is laid on the surface of the water absorbing layer, and the protective layer is arranged on the surface of the hydrophobic layer facing away from the substrate.

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