Display panel, preparation method thereof, and display device

Abstract

The application discloses a display panel and a preparation method thereof, and a display device, and relates to the technical field of display, wherein the display panel comprises a display area and a non-display area surrounding the display area, and further comprises an array substrate, a color film substrate, a frame glue and two waterproof supporting pieces; the color film substrate is arranged opposite to the array substrate; the frame glue is located between the array substrate and the color film substrate and in the non-display area; and the two waterproof supporting pieces are both arranged between the array substrate and the color film substrate and respectively located on the inner and outer sides of the frame glue; the technical scheme provided by the application can improve the water vapor blocking performance of the display panel, and further improve the corrosion resistance of the display panel; meanwhile, the waterproof supporting pieces can also play a supporting role, so that the display panel is prevented from being damaged under the action of external force, and the service life of the display panel is prolonged.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel, a method for manufacturing the same, and a display device. Background Technology

[0002] Narrow-bezel or borderless display panels are popular among consumers due to their superior visual experience and aesthetically pleasing design. A display panel typically consists of an array substrate and a color filter substrate, which are sealed together with adhesive to form the display panel. However, narrow-bezel or borderless display panels are more easily exposed to the environment. Moisture can easily enter the display panel from the interfaces between the adhesive and the array substrate, and between the adhesive and the color filter substrate. In other words, the display panel has poor moisture barrier properties, which can corrode the internal components. Summary of the Invention

[0003] The main objective of this invention is to provide a display panel, its preparation method, and a display device, which aims to improve the moisture barrier performance of the display panel and thus enhance its corrosion resistance.

[0004] To achieve the above objectives, the present invention provides a display panel comprising a display area and a non-display area surrounding the display area, the display panel further comprising:

[0005] Array substrate;

[0006] A color filter substrate, wherein the color filter substrate is disposed opposite to the array substrate;

[0007] A frame adhesive is disposed between the array substrate and the color filter substrate, and is located in the non-display area;

[0008] Two waterproof support members are provided, both of which are disposed between the array substrate and the color filter substrate, and are located on the inner and outer sides of the frame adhesive, respectively.

[0009] In one embodiment, the waterproof support components are all made of elastic materials.

[0010] In one embodiment, the dimension of the waterproof support member along the direction from the array substrate to the color filter substrate is defined as H1, and the thickness of the display panel is defined as H0, where H1 = (1.05~1.1)H0; and / or,

[0011] The waterproof support has a dimension of 25μm-50μm along the direction perpendicular to the array substrate to the color filter substrate.

[0012] In one embodiment, the array substrate includes a thin-film transistor substrate, a circuit layer and an organic planarization layer stacked sequentially. The circuit layer includes lines located in the gate driving circuit region of the array substrate. The surface of the organic planarization layer facing away from the thin-film transistor substrate is provided with a via structure that exposes the lines. A first conductive layer is provided at the via structure.

[0013] The display panel further includes a protective layer that covers the first conductive layer and is at least partially located within the via structure.

[0014] In one embodiment, the dimension of the protective layer along the direction from the array substrate to the color filter substrate is defined as H2, and the thickness of the display panel is H0, where H2 = (0.85~0.9)H0; and / or,

[0015] The protective layer is made of the same material as the waterproof support.

[0016] In one embodiment, at least one of the interfaces between the array substrate and the frame adhesive, and between the color filter substrate and the frame adhesive, is a curved surface.

[0017] In one embodiment, the interface between the array substrate and the frame adhesive, and the interface between the color filter substrate and the frame adhesive, are both uneven surfaces.

[0018] The present invention also provides a method for manufacturing a display panel, comprising the following steps:

[0019] We provide materials for array substrates, color filter substrates, frame adhesives, and waterproof support components.

[0020] Two waterproof support members are fabricated at intervals on the peripheral surface of the array substrate using the aforementioned waterproof support material, with one waterproof support member located outside the other waterproof support member.

[0021] Apply the frame adhesive between the two waterproof support members;

[0022] The color filter substrate is placed on the two waterproof supports and the frame adhesive, and then pressed together to obtain the display panel.

[0023] In one embodiment, the array substrate has a perforated structure on its surface facing the color filter substrate. Prior to the step of placing the color filter substrate on the two waterproof supports and the frame adhesive, the method further includes:

[0024] A protective layer is formed on the surface of the array substrate corresponding to the via structure;

[0025] And / or, prior to the step of fabricating two waterproof supports spaced apart on the peripheral surface of the array substrate using the waterproof support material, the method further includes:

[0026] The peripheral surface of the array substrate is made into a curved surface;

[0027] Prior to the step of placing the color filter substrate on the two waterproof supports and the frame adhesive, the method further includes:

[0028] The peripheral surface of the color filter substrate is made into a curved surface.

[0029] The present invention also proposes a display device, the display device comprising the display panel described above.

[0030] The display panel provided by this invention includes an array substrate, a color filter substrate, a frame adhesive, and two waterproof support members. The color filter substrate is disposed opposite to the array substrate, the frame adhesive is located between the array substrate and the color filter substrate, and is situated in the non-display area. The two waterproof support members are both disposed between the array substrate and the color filter substrate, and are located on the inner and outer sides of the frame adhesive, respectively. The two waterproof support members effectively prevent moisture from entering the display panel through the interfaces between the frame adhesive and the array substrate, and between the frame adhesive and the color filter substrate, thereby improving the display panel's moisture barrier performance and thus its corrosion resistance. Simultaneously, the waterproof support members also provide support, preventing damage to the display panel under external forces and extending its service life. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a cross-sectional structural diagram of an embodiment of the display panel provided by the present invention;

[0033] Figure 2 This is a top cross-sectional view of the distribution of waterproof support components and frame adhesive in the display panel provided by the present invention.

[0034] Figure 3 A schematic diagram illustrating the fabrication of the first interlocking groove and via structure in the method for manufacturing the display panel provided by the present invention;

[0035] Figure 4 A schematic diagram of the fabrication of the second interlocking groove in the method for manufacturing the display panel provided by the present invention;

[0036] Figure 5 A schematic diagram illustrating the fabrication of a waterproof support component and a protective layer in the method for manufacturing a display panel provided by the present invention;

[0037] Figure 6 This is a schematic diagram illustrating the process of manufacturing a display panel according to the present invention.

[0038] Explanation of icon numbers:

[0039] 100. Display panel; 1. Array substrate; 11. Thin film transistor substrate; 12. Circuit layer; 121. First circuit; 122. Second circuit; 13. Organic planarization layer; 131. First interlocking groove; 14. Via structure; 141. First via structure; 142. Second via structure; 15. First conductive layer; 2. Color filter substrate; 21. Color filter substrate; 22. Black matrix; 23. Second conductive layer; 231. Second interlocking groove; 3. Frame adhesive; 31. First interlocking protrusion; 32. Second interlocking protrusion; 4. Liquid crystal layer; 5. Alignment layer; 6. Waterproof support; 7. Protective layer; 8. Photomask; 9. Photoresist layer.

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0044] Currently, narrow-bezel or borderless display panels are more easily exposed to the environment. Moisture in the environment can easily enter the interior of the display panel from the interface between the frame adhesive and the array substrate, as well as the interface between the frame adhesive and the color filter substrate. In other words, the display panel has poor moisture barrier performance, which in turn causes corrosion to the internal components of the display panel.

[0045] To address the aforementioned technical problems, this invention proposes a display panel 100, which aims to improve the moisture barrier performance of the display panel 100, thereby enhancing its corrosion resistance.

[0046] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the display panel 100 includes a display area and a non-display area surrounding the display area. The display panel 100 also includes an array substrate 1, a color filter substrate 2, a frame adhesive 3, and two waterproof support members 6. The color filter substrate 2 and the array substrate 1 are disposed opposite to each other. The frame adhesive 3 is disposed between the array substrate 1 and the color filter substrate 2 and is located in the non-display area. The two waterproof support members 6 are both disposed between the array substrate 1 and the color filter substrate 2 and are respectively located on the inner and outer sides of the frame adhesive 3.

[0047] Specifically, the display panel 100 is divided into a display area and a non-display area. The non-display area is located on the periphery of the display area. The array substrate 1 and the color filter substrate 2 are mounted in a box and sealed together by a frame adhesive 3, which is located in the non-display area. The frame adhesive 3 is roughly circular in shape. Correspondingly, the waterproof support member 6 is also circular in shape. The two waterproof support members 6 are respectively located on the inner and outer sides of the frame adhesive 3. The waterproof support member 6 located on the outer side of the frame adhesive 3 can effectively prevent moisture from entering the interior of the display panel 100 through the contact interface between the array substrate 1 and the frame adhesive 3 and the contact interface between the color filter substrate 2 and the frame adhesive 3, thus improving the moisture barrier performance of the display panel 100. At the same time, the waterproof support member 6 located on the inner side of the frame adhesive 3 can further improve the moisture barrier performance of the display panel 100. In addition, the two waterproof support members 6 are located between the array substrate 1 and the color filter substrate 2, which can play a good supporting role, preventing the display panel 100 from being damaged under external forces and extending the service life of the display panel. When the display panel 100 is a liquid crystal display panel, the liquid crystal layer 4 is located between the array substrate 1 and the color filter substrate 2, and is located in the display area. Under the support of the two waterproof support members 6, the liquid crystal can be effectively prevented from overflowing under the action of external force.

[0048] The technical solution of the present invention can effectively improve the water vapor barrier performance of the display panel 100 by setting waterproof support members 6 on the inner and outer sides of the frame adhesive 3, thereby improving the corrosion resistance of the display panel 100; moreover, the waterproof support members 6 are set between the array substrate 1 and the color filter substrate 2, which can play a good supporting role, avoid damage to the display panel 100 under external force, and extend the service life of the display panel 100.

[0049] It should be noted that the waterproof support 6 is a structural component with a supporting function made of a hydrophobic material. The hydrophobic material is not limited here, as long as it has hydrophobic properties. Since the waterproof support 6 itself has good hydrophobicity, waterproof supports are provided on both the inner and outer sides of the frame adhesive 3. This can effectively prevent moisture from entering the interior of the display panel 100 through the contact interface between the array substrate 1 and the frame adhesive 3 and the contact interface between the color filter substrate 2 and the frame adhesive 3, thereby effectively improving the moisture barrier performance of the display panel 100.

[0050] In some embodiments, the waterproof support member 6 is made of an elastic material. That is, in this embodiment, the material of the waterproof support member 6 not only has hydrophobic properties but also good elasticity. Therefore, the waterproof support member 6 provides good elastic support between the array substrate 1 and the color filter substrate 2, effectively preventing damage to the display panel 100 under external forces and extending the service life of the display panel 100. When the display panel 100 is a liquid crystal display panel, it can effectively prevent damage to the liquid crystal display panel under external forces and prevent liquid crystal leakage.

[0051] Optionally, the waterproof support 6 is roughly trapezoidal in shape, with a large end and a small end. The size of the large end of the waterproof support 6 is larger than the size of its small end. The large end of the waterproof support 6 abuts against the array substrate 1, and the small end abuts against the color filter substrate 2, which facilitates processing and manufacturing. Of course, depending on actual needs, the waterproof support 6 can also adopt other reasonable shapes, such as cylindrical or other reasonable shapes.

[0052] Please see Figure 2 The frame adhesive 3 is located in the non-display area at the edge of the display panel 100 and is in a ring-shaped configuration. The waterproof support members 6, located on both the inner and outer sides of the frame adhesive 3, are also in a ring-shaped configuration. This means the waterproof support members 6 are also located in the non-display area at the edge of the display panel 100. This effectively prevents moisture from entering the interior of the display panel 100 at the edge through the contact interface between the array substrate 1 and the frame adhesive 3, and between the color filter substrate 2 and the frame adhesive 3, thus improving the moisture barrier performance of the display panel 100. Simultaneously, the two waterproof support members 6, located between the array substrate 1 and the color filter substrate 2, provide good support, preventing damage to the display panel 100 under external forces and extending its lifespan. Furthermore, since the two waterproof support members 6 are located in the non-display area at the edge of the display panel 100, they do not affect the display effect of the display area.

[0053] In some embodiments, the cross-sectional dimension of the U-shaped waterproof support 6 gradually decreases along the direction from the array substrate 1 to the color filter substrate 2. That is, the end of the U-shaped waterproof support 6 facing the array substrate 1 is the large end, and the end of the U-shaped waterproof support 6 facing the color filter substrate 2 is the small end. The size of the large end is smaller than the size of the small end, which facilitates processing and manufacturing.

[0054] In some embodiments, the waterproof support 6 is made of an elastic material. Optionally, the waterproof support 6 is made of at least one of silicone rubber, fluororubber, polytetrafluoroethylene, polyurethane elastomer, and waterproof elastic composite (whose main components include propylene glycol methyl ether acetate, (3-methoxy-1-butyl) acetate, and acrylic resin).

[0055] Define the dimension (i.e. the height) of the waterproof support 6 along the direction from the array substrate 1 to the color filter substrate 2 as H1, and the thickness of the display panel 100 as H0, H1 = (1.05~1.1)H0.

[0056] Because the waterproof support 6 has good elasticity, the size of the waterproof support 6 along the direction from the array substrate 1 to the color filter substrate 2 is designed to be slightly larger than the thickness of the display panel 100. This can play a good auxiliary support role and also play a good role in blocking water vapor.

[0057] Optionally, the dimension (i.e., width) of the waterproof support 6 along the direction perpendicular to the array substrate 1 to the color filter substrate 2 is 25μm-50μm (e.g., 25μm, 30μm, 35μm, 40μm, 45μm, 50μm, and any range between the two endpoints). Selecting a waterproof support 6 with an appropriate width can provide both good auxiliary support and effective moisture barrier.

[0058] Please refer to it again. Figure 1 In some embodiments, the array substrate 1 includes a thin-film transistor substrate 11, a circuit layer 12, and an organic planarization layer 13 stacked sequentially. The circuit layer 12 includes lines located in the gate driving circuit region of the array substrate 1. The surface of the organic planarization layer 13 facing away from the thin-film transistor substrate 11 is provided with a via structure 14 that exposes the lines. A first conductive layer 15 is provided at the via structure 14. The display panel 100 also includes a protective layer 7, which covers the first conductive layer 15 and is at least partially located within the via structure 14.

[0059] Specifically, the array substrate 1 is basically divided into an external bus area, a clock signal area, a gate driver less (GDL) area, and a display area from the outside in, so as to facilitate the arrangement of corresponding lines in each area. The lines in the gate driver less area include a first line 121 and a second line 122. The organic planarization layer 13 (i.e., PFA layer) has a first via structure 141 exposing the first line 121 and a second via structure 142 exposing the second line 122 on the surface facing away from the thin film transistor substrate 11. A first conductive layer 15 is disposed in the first via structure 141 and the second via structure 142. The first conductive layer 15 can be an ITO layer. The protective layer 7 covers the first conductive layer 15 and is at least partially located in the first via structure 141 and the second via structure 142. This arrangement can effectively prevent moisture from entering the vias and corroding the first line 121 and the second line 122, further improving the corrosion resistance of the display panel 100.

[0060] In some embodiments, the dimension (i.e., height) of the protective layer 7 along the direction from the array substrate 1 to the color filter substrate 2 is defined as H2, and the thickness of the display panel 100 is defined as H0, where H2 = (0.85~0.9)H0. This design can effectively block moisture while also providing auxiliary support.

[0061] In some embodiments, waterproof support members 6 are provided on both the inner and outer sides of the frame adhesive 3, and a protective layer 7 is provided at the through-hole structure 14. The waterproof support member 6 plays a role in blocking water vapor and providing main support, while the protective layer 7 plays a role in blocking water vapor and providing auxiliary support. The waterproof support member 6 plays a supporting role for the display panel 100 under normal conditions, while the protective layer 7 increases the overall support strength of the waterproof support member 6 by pressing against the array substrate 1 when subjected to external force, thus preventing the display panel 100 from being damaged under external force.

[0062] In some embodiments, the height H2 of the protective layer 7 and the height H1 of the waterproof support 6 satisfy: H1:H2=(1.1~1.3):1. With this design, the protective layer 7 can play an effective auxiliary support role. Only when the display panel 100 is subjected to external force will the protective layer 7 and the waterproof support 6 play a supporting role at the same time, thereby increasing the support strength and more effectively preventing the display panel 100 from being damaged under external force.

[0063] In some embodiments, the protective layer 7 may be made of the same material as the waterproof support 6, thereby allowing the same waterproof material to be used for simultaneous fabrication, which is convenient and simplifies the fabrication process.

[0064] Please refer to it again. Figure 1 In some embodiments, at least one of the interfaces where the array substrate 1 contacts the frame adhesive 3 and the interface where the color filter substrate 2 contacts the frame adhesive 3 is a curved surface.

[0065] A curved surface is an uneven surface, such as a wavy or sawtooth surface. Optionally, the interfaces between the array substrate 1 and the frame adhesive 3, and between the color filter substrate 2 and the frame adhesive 3, are both curved surfaces. Compared to the existing planar interface design, the curved interface design of this invention allows for a relatively large contact area between the frame adhesive 3 and the array substrate 1, and between the frame adhesive 3 and the color filter substrate 2. Furthermore, air bubbles are less likely to appear at the contact interfaces, effectively reducing air bubbles at the frame adhesive 3 interface. This further prevents moisture from entering the interior through the frame adhesive 3 interface, thereby further improving the corrosion resistance of the display panel 100.

[0066] It should be noted that the specific shape and size of the curved surface are not limited, as long as the contact interface is not planar.

[0067] In this embodiment of the invention, by designing the interface between the array substrate 1 and the frame adhesive 3, and the interface between the color filter substrate 2 and the frame adhesive 3, both as curved surfaces, the air bubble gaps at the frame adhesive 3 interface can be effectively reduced, thereby effectively preventing moisture from the environment from entering the interior through the frame adhesive 3 interface, and further improving the corrosion resistance of the display panel 100.

[0068] In one embodiment of the present invention, a first engagement groove 131 is provided at the interface where the array substrate 1 contacts the frame adhesive 3, and a first engagement protrusion 31 is formed on one side of the frame adhesive 3 corresponding to the array substrate 1, and the first engagement protrusion 31 is engaged in the first engagement groove 131.

[0069] Specifically, the array substrate 1 has a first engagement groove 131 on its surface corresponding to the non-display area and facing the color filter substrate 2. The shape of the first engagement groove 131 can be triangular, square, inverted trapezoidal, or other reasonable shapes, and is not limited here. The specific size of the first engagement groove 131 is also not limited. The shape and size of the first engagement protrusion 31 are adapted to the shape and size of the first engagement groove 131. After the display panel 100 is assembled, the first engagement protrusion 31 is engaged in the first engagement groove 131, that is, the frame adhesive 3 can be well engaged with the array substrate 1, thereby effectively reducing the air bubble gap at the contact interface between the two and preventing moisture from entering the interior through the contact interface and causing corrosion.

[0070] Of course, in some other embodiments, the interface between the array substrate 1 and the frame adhesive 3 is provided with a first engagement protrusion. Correspondingly, the frame adhesive 3 forms a first engagement groove on one side of the array substrate 1. Thus, the frame adhesive 3 can also engage well with the array substrate 1, thereby effectively reducing the air bubble gap at the interface between the two and preventing moisture from entering the interior through the interface and causing corrosion.

[0071] In one embodiment of the present invention, a second engagement groove 231 is provided at the interface where the color filter substrate 2 contacts the frame adhesive 3, and a second engagement protrusion 32 is formed on the side of the frame adhesive 3 corresponding to the color filter substrate 2, and the second engagement protrusion 32 is engaged in the second engagement groove 231.

[0072] Specifically, the color filter substrate 2 has a second engagement groove 231 on its surface corresponding to the non-display area and facing the array substrate 1. The shape of the second engagement groove 231 can be triangular, square, inverted trapezoidal, or other reasonable shapes, and is not limited here. The specific size of the second engagement groove 231 is also not limited. The shape and size of the second engagement protrusion 32 are adapted to the shape and size of the second engagement groove 231. After the display panel 100 is assembled, the first engagement protrusion 31 is engaged in the second engagement groove 231, that is, the frame adhesive 3 can engage well with the color filter substrate 2, thereby effectively reducing the air bubble gap at the contact interface between the two and preventing moisture from entering the interior through the contact interface and causing corrosion.

[0073] Of course, in some other embodiments, a second engagement protrusion is provided at the interface where the color filter substrate 2 contacts the frame adhesive 3. Correspondingly, the frame adhesive 3 forms a first engagement groove on one side of the color filter substrate 2. Thus, the frame adhesive 3 can also engage well with the color filter substrate 2, thereby effectively reducing the air bubble gap at the interface between the two and preventing moisture from entering the interior through the interface and causing corrosion.

[0074] In some embodiments, the interfaces between the array substrate 1 and the frame adhesive 3, and between the color filter substrate 2 and the frame adhesive 3, are both uneven surfaces. This ensures good bonding between the frame adhesive 3 and the array substrate 1, as well as between the frame adhesive 3 and the color filter substrate 2, thereby effectively reducing air bubbles at the contact interfaces and preventing moisture from entering the interior and causing corrosion; it also facilitates the fabrication of the interfaces.

[0075] In some embodiments, the interface between the array substrate 1 and the frame adhesive 3 is provided with a plurality of first engagement grooves 131 at intervals, and the frame adhesive 3 is provided with a plurality of first engagement protrusions 31 at intervals on one side of the array substrate 1, and one first engagement protrusion 31 is correspondingly engaged in one first engagement groove 131.

[0076] Specifically, multiple first engagement grooves 131 are spaced apart on the surface of the array substrate 1 corresponding to the non-display area and facing the color filter substrate 2. Optionally, the multiple first engagement grooves 131 are evenly distributed in an array, and the shape and size of the first engagement grooves 131 are not limited. Correspondingly, multiple first engagement protrusions 31 are spaced apart on the side of the frame adhesive 3 facing the array substrate 1. Optionally, the multiple first engagement protrusions 31 are evenly distributed in an array and correspond one-to-one with the multiple first engagement grooves 131. During assembly, one first engagement protrusion 31 is engaged in one first engagement groove 131, thereby enabling the frame adhesive 3 to better engage with the array substrate 1, thereby more effectively reducing the air bubble gap at the contact interface between the two and preventing moisture from entering the interior through the contact interface and causing corrosion.

[0077] It should be noted that the multiple first occlusal grooves 131 have the same shape and the same size, which facilitates the processing and manufacturing of the multiple first occlusal grooves 131.

[0078] In some embodiments, the interface between the color filter substrate 2 and the frame adhesive 3 is provided with a plurality of second engagement grooves 231 at intervals, and the frame adhesive 3 is provided with a plurality of second engagement protrusions 32 at intervals on one side corresponding to the color filter substrate 2, and one second engagement protrusion 32 is engaged in one second engagement groove 231.

[0079] Specifically, multiple second engagement grooves 231 are spaced apart on the surface of the color filter substrate 2 corresponding to the non-display area and facing the array substrate 1. Optionally, the multiple second engagement grooves 231 are evenly distributed in an array, and the shape and size of the second engagement grooves 231 are not limited. Correspondingly, multiple second engagement protrusions 32 are spaced apart on the side of the frame adhesive 3 facing the color filter substrate 2. Optionally, the multiple second engagement protrusions 32 are evenly distributed in an array and correspond one-to-one with the multiple second engagement grooves 231. During assembly, one second engagement protrusion 32 is engaged in one second engagement groove 231, thereby enabling the frame adhesive 3 to better engage with the color filter substrate 2, thereby more effectively reducing the air bubble gap at the contact interface between the two and preventing moisture from entering the interior through the contact interface and causing corrosion.

[0080] It should be noted that the multiple second occlusal grooves 231 have the same shape and the same size, which facilitates the processing and manufacturing of the multiple second occlusal grooves 231.

[0081] Please refer to it again. Figure 1 In some embodiments, the array substrate 1 includes a thin film transistor substrate 11, a circuit layer 12 and an organic planarization layer 13 stacked sequentially, and the surface of the organic planarization layer 13 facing away from the thin film transistor substrate 11 is provided with a plurality of first interlocking grooves 131 at intervals.

[0082] Specifically, the thin-film transistor substrate 11 includes a substrate and thin-film transistors arranged in an array on the substrate. The substrate can be a glass substrate. The circuit layer 12 is made of a conductive material and is electrically connected to the thin-film transistors. The organic planarization layer 13 is made of an organic insulating material. The organic planarization layer 13 can planarize the array substrate 1, reduce the unevenness of the substrate surface, provide a smoother foundation for the deposition of subsequent film layers, thereby improving the display uniformity of the display panel 100; it can also reduce parasitic capacitance, reduce interference during signal transmission, improve signal transmission efficiency, and thus improve display quality. The first interlocking groove 131 is formed on the surface of the organic planarization layer 13 facing away from the thin-film transistor substrate 11, and can be fabricated by photolithography.

[0083] Optionally, the organic planarization layer 13 is made of perfluoroalkoxyalkane (PFA) material. PFA has a good protective effect and covers the surface of the circuit layer 12. It can effectively prevent the circuit layer 12 from being corroded by moisture, oxygen, acids and alkalis in the external environment, thereby extending its service life and improving the reliability and stability of the display panel 100.

[0084] Optionally, the first engagement groove 131 is an inverted trapezoidal groove, and the depth of the first engagement groove 131 is half the thickness of the organic planarization layer 13.

[0085] It should be noted that the width of the first occlusal groove 131 is not limited and depends on the actual situation. The number of first occlusal grooves 131 is determined according to the width of the first occlusal groove 131.

[0086] Please see Figure 1 and Figure 4 In some embodiments of the present invention, the color filter substrate 2 includes a color filter substrate 21, a black matrix 22 and a second conductive layer 23 stacked sequentially, and a plurality of second interlocking grooves 231 are provided on the surface of the second conductive layer 23 facing away from the black matrix 22.

[0087] Specifically, the color filter substrate 21 is a key component of the color filter substrate 2, and its function is to realize color display. In the liquid crystal display device, the light emitted by the white backlight is decomposed into red, green, and blue (RGB) primary colors after passing through the color filter substrate 21. The black matrix 22 plays a role in light shielding and isolation to effectively prevent color interference between pixels. The black matrix 22 can absorb ambient light and stray light emitted by the backlight, thereby improving the contrast of the display. The second conductive layer 23 can serve as an electrode. In the liquid crystal display panel 100, it can be used to apply an electric field to control the alignment direction of liquid crystal molecules. At the same time, the second conductive layer 23 can also play a role in signal transmission, transmitting electrical signals from external circuits to the color filter substrate 21. Optionally, the second conductive layer 23 can be an ITO (indium tin oxide) layer. The second interlocking groove 231 is formed on the surface of the second conductive layer 23 facing away from the black matrix 22, and can be specifically fabricated by photolithography.

[0088] Optionally, the second engagement groove 231 is an inverted trapezoidal groove, and the depth of the second engagement groove 231 is half the thickness of the second conductive layer 23.

[0089] It should be noted that the width of the second occlusal groove 231 is not limited and depends on the actual situation. The number of second occlusal grooves 231 is determined based on the width of the first occlusal groove 131.

[0090] In some embodiments, the display panel 100 is a liquid crystal display panel, which further includes a liquid crystal layer 4 located between the array substrate 1 and the color filter substrate 2, and situated in the display area. To ensure that the liquid crystal molecules in the liquid crystal layer 4 are oriented under the action of an electric field, the liquid crystal panel further includes an alignment layer 5. Optionally, two alignment layers 5 are provided, respectively disposed between the array substrate 1 and the liquid crystal layer 4, and between the color filter substrate 2 and the liquid crystal layer 4. Specifically, one alignment layer 5 is disposed between the second conductive layer 23 and the liquid crystal layer 4, and the other alignment layer 5 is disposed between the PFA layer and the liquid crystal layer 4.

[0091] Please see Figure 5 and Figure 6 The present invention also provides a method for manufacturing a display panel 100, comprising the following steps:

[0092] Provide array substrate 1, color filter substrate 2, frame adhesive 3, and waterproof support materials;

[0093] Two waterproof support members 6 are fabricated at intervals on the peripheral surface of the array substrate 1 using waterproof support material, with one waterproof support member 6 located outside the other waterproof support member 6.

[0094] Apply frame adhesive 3 between the two waterproof support components 6;

[0095] The color filter substrate 2 is placed on two waterproof support members 6 and frame adhesive 3, and then pressed together to obtain the display panel 100.

[0096] The specific structural configuration of the array substrate 1 and the color filter substrate 2 in this invention can be referred to the above embodiments, and the specific materials of the waterproof support can be referred to the above embodiments, and will not be described in detail here.

[0097] Specifically, the waterproof support 6 can be manufactured using a graphic method or other reasonable methods, which are not limited here. The two waterproof support 6 are both ring-shaped structures with the same height. The two waterproof support 6 are spaced apart inside and outside and enclose each other to form an accommodating space. The frame adhesive 3 is applied to the accommodating space and fills the entire accommodating space. Thus, after the color filter substrate 2 is pressed together, the frame adhesive 3 can achieve the effect of sealing and connecting with the color filter substrate 2.

[0098] In some embodiments, the waterproof support material is an elastic waterproof support material. For example, the main components of the waterproof elastic material include propylene glycol methyl ether acetate, (3-methoxy-1-butyl) acetate, and acrylic resin, which are readily available. Because the waterproof support 6 has good elasticity, its height is designed to be slightly greater than the thickness of the display panel 100 during manufacturing. This provides both good auxiliary support and effective moisture barrier. Simultaneously, when applying the frame adhesive 3, its height is slightly lower than that of the waterproof support 6. Since the waterproof support 6 has good elasticity, after the color filter substrate 2 is laminated onto the array substrate 1, the frame adhesive 3 can fill the entire space, providing a good sealing connection. The height of the waterproof support 6 can be referenced in the above embodiments and will not be repeated here.

[0099] The present invention first manufactures two waterproof support components 6 and then applies frame adhesive 3 between the two waterproof support components 6. The waterproof support components 6 serve as pre-positioning components to facilitate the application of frame adhesive, and the operation is relatively simple.

[0100] In some embodiments, the surface of the array substrate 1 facing the color filter substrate 2 is provided with a through-hole structure 14. Before the step of placing the color filter substrate 2 on the two waterproof supports 6 and the frame adhesive 3, the method further includes:

[0101] A protective layer 7 is fabricated on the surface of the array substrate 1 corresponding to the via structure 14.

[0102] Please refer to this again. Figure 3In some embodiments, the first engagement groove 131 and the via structure 14 can be fabricated simultaneously. Since the depths of the lines (including the first line 121 and the second line 122) in the gate drive circuit area and the first engagement groove 131 are different, a halftone mask (i.e., a halftone mask with two transmittances, which can simultaneously obtain patterns of different thicknesses) 8 is used for exposure. The areas of the 8 with high transmittance develop a deeper pattern, while the areas of the 8 with low transmittance develop a shallower image. Thus, the first engagement groove 131, the first via structure 141, and the second via structure 142 can be fabricated simultaneously, and the fabricated first engagement groove 131, the first via structure 141, and the second via structure 142 are all inverted trapezoidal.

[0103] The material of the protective layer 7 can be a waterproof support material, that is, the material of the protective layer 7 is the same as the material of the waterproof support 6, so that the protective layer 7 and the waterproof support 6 can be made at the same time.

[0104] Please see Figure 5 In some embodiments, after the first interlocking groove 131, the first through-hole structure 141, and the second through-hole structure 142 are fabricated, a first conductive layer 15 is first fabricated on the first through-hole structure 141 and the second through-hole structure 142. Then, a layer of waterproof elastic material is coated on the surface of the PFA layer. The main components of the waterproof elastic material include propylene glycol methyl ether acetate, 3-methoxy-1-butyl acetate, and acrylic resin, which can be purchased directly. Since the waterproof elastic material contains a photosensitizer, etching is not required, and the pattern grooving can be completed directly by exposure and development through the photomask 8. Since the height of the waterproof support 6 on both sides of the frame adhesive 3 and the height of the protective layer 7 at the through-hole structure 14 are different, a half-tone mask (which has two transmittances and can simultaneously obtain patterns of different thicknesses) photomask 8 is used for exposure to obtain the waterproof support 6 on both sides of the frame adhesive 3 and the protective layer 7 at the through-hole structure 14.

[0105] In some embodiments, prior to the step of fabricating two waterproof supports 6 at intervals on the peripheral surface of the array substrate 1 using a waterproof support material, the method further includes:

[0106] The peripheral surface of the array substrate 1 is made into a curved surface;

[0107] Prior to the step of placing the color filter substrate 2 on the two waterproof supports 6 and the frame adhesive 3, the following is also included:

[0108] The peripheral surface of the color filter substrate 2 is made into a curved surface.

[0109] Optionally, the peripheral surface of the array substrate 1 is made into a concave-convex surface, specifically by providing a plurality of first engagement grooves at intervals; the peripheral surface of the color filter substrate 2 is made into a concave-convex surface, specifically by providing a plurality of second engagement grooves at intervals, wherein the size and shape of the first engagement groove 131 and the second engagement groove 231 can refer to the above embodiments, and will not be described again.

[0110] Please refer to it again. Figure 3 In some embodiments, the organic planarization layer 13 is a PFA layer, and the first interlocking groove 131 can be obtained by patterning and grooving the PFA layer. Since the PFA contains a photosensitive agent, etching is not required; the patterning and grooving can be completed directly by exposure and development through the photomask 8 to obtain the first interlocking groove 131. The first interlocking groove 131 obtained by this method is an inverted trapezoidal groove, and the depth of the first interlocking groove 131 is half the thickness of the PFA layer. This method is relatively simple to operate and the fabrication process is relatively simplified.

[0111] Please refer to it again. Figure 4 In some embodiments, the second conductive layer 23 is an ITO layer, and the second engagement groove 231 can be obtained by patterning and grooving the ITO layer. Specifically, a layer of positive photoresist is first coated on the surface of the ITO layer to form a photoresist layer 9. Then, the photoresist layer 9 is exposed and developed using a photomask 8 to etch the ITO layer. Finally, a photoresist remover is added to remove the photoresist layer 9, thereby obtaining the second engagement groove 231. The second engagement groove 231 obtained by this method is an inverted trapezoidal groove, and the depth of the second engagement groove 231 is half the thickness of the ITO layer. This method is relatively simple to operate and the fabrication process is relatively simplified.

[0112] The present invention also proposes a display device, which includes a display panel 100. The specific structure of the display panel 100 is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. Optionally, the display device is a liquid crystal display device.

[0113] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A display panel, comprising a display area and a non-display area surrounding the display area, characterized in that, The display panel also includes: Array substrate; A color filter substrate, wherein the color filter substrate is disposed opposite to the array substrate; A frame adhesive is disposed between the array substrate and the color filter substrate, and is located in the non-display area; Two waterproof support members are provided, both of which are disposed between the array substrate and the color filter substrate. The two ends of each waterproof support member abut against the array substrate and the color filter substrate respectively, and the two waterproof support members are respectively attached to the inner and outer surfaces of the frame adhesive. All waterproof support components are made of elastic materials; The dimension of the waterproof support member along the direction from the array substrate to the color filter substrate is defined as H1, and the thickness of the display panel is defined as H0, where H1 = (1.05~1.1)H0; The array substrate includes a thin-film transistor substrate, a circuit layer and an organic planarization layer stacked sequentially. The circuit layer includes lines located in the gate driving circuit region of the array substrate. The surface of the organic planarization layer facing away from the thin-film transistor substrate is provided with a via structure that exposes the lines. The via structure is located inside the sealant and a first conductive layer is provided at the via structure. The display panel further includes a protective layer that covers the first conductive layer and is at least partially located within the via structure; The dimension of the protective layer along the direction from the array substrate to the color filter substrate is defined as H2, where H2 = (0.85~0.9)H0.

2. The display panel as described in claim 1, characterized in that, The waterproof support has a dimension of 25μm-50μm along the direction perpendicular to the array substrate to the color filter substrate.

3. The display panel as described in claim 1, characterized in that, The protective layer is made of the same material as the waterproof support.

4. The display panel as described in any one of claims 1 to 3, characterized in that, At least one of the interfaces between the array substrate and the frame adhesive, and between the color filter substrate and the frame adhesive, is a curved surface.

5. The display panel as described in claim 4, characterized in that, The interface between the array substrate and the frame adhesive, and the interface between the color filter substrate and the frame adhesive, are both concave and convex surfaces.

6. A method for manufacturing a display panel, the display panel comprising a display area and a non-display area surrounding the display area, characterized in that, The preparation method includes the following steps: We provide materials for array substrates, color filter substrates, frame adhesives, and waterproof support components. The waterproof support component material is an elastic material. Two waterproof support members are fabricated at intervals on the peripheral surface of the array substrate using the aforementioned waterproof support material, with one waterproof support member located outside the other waterproof support member. The frame adhesive is applied between the two waterproof support members, and the frame adhesive is located in the non-display area; The color filter substrate is placed on the two waterproof supports and the frame adhesive, and then pressed together to obtain the display panel. The array substrate includes a thin-film transistor substrate, a circuit layer and an organic planarization layer stacked sequentially. The circuit layer includes lines located in the gate driving circuit region of the array substrate. The surface of the organic planarization layer facing away from the thin-film transistor substrate is provided with a via structure that exposes the lines. The via structure is located inside the sealant. Prior to the step of placing the color filter substrate on the two waterproof supports and the frame adhesive, the method further includes: A first conductive layer is formed at the via structure, and a protective layer is formed on the surface of the array substrate corresponding to the via structure. The protective layer covers the first conductive layer and is at least partially located within the via structure. The waterproof support member has a dimension of H1 along the direction from the array substrate to the color filter substrate, and the display panel has a thickness of H0, where H1 = (1.05~1.1)H0; The protective layer has a dimension of H2 along the direction from the array substrate to the color filter substrate, where H2 = (0.85~0.9)H0.

7. The method for manufacturing a display panel as described in claim 6, characterized in that, Before the step of fabricating two waterproof supports spaced apart on the peripheral surface of the array substrate using the aforementioned waterproof support material, the method further includes: The peripheral surface of the array substrate is made into a curved surface; Prior to the step of placing the color filter substrate on the two waterproof supports and the frame adhesive, the method further includes: The peripheral surface of the color filter substrate is made into a curved surface.

8. A display device, characterized in that, It includes a display panel as described in any one of claims 1 to 5, or a display panel prepared by the method for preparing a display panel as described in any one of claims 6 to 7.

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