Display panel, preparation method thereof and display device

Abstract

Embodiments of the present application provide a display panel, a preparation method thereof and a display device. The display panel comprises a first substrate, a second substrate and a liquid crystal layer. The liquid crystal layer is arranged between the first substrate and the second substrate. The first substrate comprises a first substrate body, a first alignment film and a plurality of spacers. The first alignment film and the spacers are arranged on a side of the first substrate body close to the liquid crystal layer. One end of each spacer is fixedly connected to the first substrate body. At least one spacer is arranged to protrude from the first alignment film in a direction perpendicular to the plane of the display panel. The display panel provided by the first aspect of the present application is arranged such that at least one spacer protrudes from the first alignment film. This reduces the residual first alignment film on the top of the spacer, thereby reducing the friction between the top of the spacer and the first alignment film during mechanical testing, the damage and separation of the spacer, and the generation of debris. This reduces the probability of the generation of bright spots in the display device, and improves the performance of the display panel.

Description

Technical Field

[0001] This application relates to the field of display device technology, specifically to a display panel and its manufacturing method, and a display device. Background Technology

[0002] In the field of liquid crystal display panels, the process of preparing liquid crystal cells for display panels typically involves preparing support pillar structures (spacers, PS) on a substrate, and then coating the PS surface with an alignment liquid to prepare an alignment film.

[0003] There is some alignment film residue at the top of the PS. Due to surface tension, the alignment film at this location is thin and has low strength, which may cause reliability issues in subsequent mechanical extrusion tests, resulting in abnormal situations such as bright spots appearing on the display device. Summary of the Invention

[0004] This application provides a display panel and its manufacturing method, as well as a display device, which can reduce the probability of bright spots occurring during mechanical extrusion testing and improve the performance of the display panel.

[0005] In a first aspect, a display panel is provided according to an embodiment of the present application, comprising: a first substrate, a second substrate and a liquid crystal layer, wherein the liquid crystal layer is sandwiched between the first substrate and the second substrate, and the first substrate comprises a first substrate body, a first alignment film and a plurality of spacers, wherein the first alignment film and the spacers are located on the side of the first substrate body near the liquid crystal layer, and one end of the spacers is fixedly connected to the first substrate body.

[0006] In this configuration, at least one spacer is exposed from the first alignment film along a direction perpendicular to the plane of the display panel.

[0007] The display panel provided in the first aspect of this application reduces the amount of the first alignment film remaining on the top of the spacer by setting at least one spacer exposed from the first alignment film. This reduces the probability of friction between the top of the spacer and the first alignment film during mechanical testing, which could damage or detach the first alignment film at that location and cause it to scrape off debris, thereby improving the display performance of the display panel.

[0008] Secondly, according to embodiments of this application, a method for manufacturing a display panel is provided, comprising: A spacer is prepared on one side of the first substrate body, and one end of the spacer is fixedly connected to the first substrate body. A first alignment film is prepared on one side of the first substrate body, and at least one spacer is exposed from the first alignment film along a direction perpendicular to the plane of the first substrate body; The surface of the first substrate body on which the first alignment film is disposed is aligned and bonded with the second substrate, and the first alignment film, the second substrate and the spacer are enclosed to form a liquid crystal cell. Liquid crystal is injected into the liquid crystal cell to form a liquid crystal layer.

[0009] Thirdly, according to the embodiments of this application, a display device is provided, including a display panel provided in any embodiment of the first aspect of this application, or a display panel formed by the method for preparing a display panel provided in any embodiment of the second aspect of this application. Attached Figure Description

[0010] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0011] Figure 1 This is a cross-sectional structural diagram of a display panel provided in the first aspect embodiment of this application; Figure 2 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application; Figure 3 This is a cross-sectional structural schematic diagram of another display panel provided in the first aspect embodiment of this application; Figure 4 This is a flowchart of the steps of a method for manufacturing a display panel according to a second aspect embodiment of this application; Figure 5 This is a flowchart of another method for manufacturing a display panel provided in the second aspect of this application; Figure 6 This is a schematic diagram of the overall structure of a display device provided in the third aspect of this application.

[0012] in: 100-first substrate; 110-first substrate body; 120-first alignment film; 130-light shielding part; 140-light filter part; 200 - Second substrate; 210 - Second substrate body; 220 - Second alignment film; 300 - Spacer; 310 - First end; 320 - Second end; 330 - Side wall surface; 400-Liquid Crystal Layer; 1000 - Display panel; 2000 - Display device.

[0013] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0014] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0015] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the display panel and display module of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0016] In the field of liquid crystal display panels, the process of preparing liquid crystal cells for display panels typically involves preparing support pillar structures (spacers, PS) on a substrate and then coating an alignment liquid onto the PS surface to prepare an alignment film.

[0017] Alignment films are typically prepared by coating polyimide (PI) alignment liquid. Usually, some alignment film remains at the top of the PS, and due to surface tension, the thickness and strength of the remaining alignment film at this location are small.

[0018] In subsequent mechanical extrusion tests of the display panel, the display panel will be subjected to external extrusion force, causing friction between the PS and the alignment film inside the display panel. The alignment film remaining on the top of the PS will further be squeezed and rubbed against other film layers on the side away from the PS. The alignment film is easily damaged and further separated, scraping out debris.

[0019] During subsequent lighting tests of the display panel, the scraped debris entered the liquid crystal cell. This caused light to pass through the pixel positions in the display device, and the light was affected by the debris, resulting in a problem of broken bright spots. This led to a decrease in the display performance of the display panel.

[0020] In order to solve the above-mentioned technical problems, this application provides a display panel and its manufacturing method and display device, which can reduce the probability of bright spots occurring in mechanical extrusion tests and improve the performance of the display panel.

[0021] Figure 1 A cross-sectional structure of a display panel provided in the first aspect embodiment of this application is shown.

[0022] Please see Figure 1 In a first aspect, embodiments of this application provide a display panel, including: a first substrate 100, a second substrate 200 and a liquid crystal layer 400, the liquid crystal layer 400 being sandwiched between the first substrate 100 and the second substrate 200, and the first substrate 100 including a first substrate body 110, a first alignment film 120 and a plurality of spacers 300, the first alignment film 120 and the spacers 300 being located on the side of the first substrate body 110 near the liquid crystal layer 400, and one end of the spacers 300 being fixedly connected to the first substrate body 110.

[0023] In this configuration, at least one spacer 300 is exposed from the first alignment film 120 along a direction perpendicular to the plane of the display panel.

[0024] The first substrate 100 and the second substrate 200 can be either a color filter substrate or an array substrate. The color filter substrate includes a light-shielding portion 130, a light-filtering portion 140, and a light-transmitting opening formed by the light-shielding portion 130. The light-filtering portion 140 is located inside the light-transmitting opening. The liquid crystal molecules in the liquid crystal cell are deflected by applying an electric field through electrodes. When the white light emitted from the backlight module is deflected by the liquid crystal molecules in the liquid crystal cell, the amount of light transmitted is controlled. The white light passing through the liquid crystal cell is filtered by the light-filtering portion 140 of the color filter substrate to present different colors, thereby realizing the color display of the liquid crystal display panel. At the same time, the array substrate includes a pixel circuit that controls the degree of deflection of the liquid crystal molecules in the liquid crystal cell. By controlling the degree of deflection of the liquid crystal molecules, the amount of light transmitted by the white light emitted from the backlight module entering the light-filtering portion and being emitted can be controlled to realize the lighting and turning off of the sub-pixels.

[0025] In another embodiment, the first substrate 100 and the second substrate 200 can be either a black matrix substrate or a color filter array substrate. The black matrix substrate includes a light-shielding portion and a light-transmitting opening formed by the light-shielding portion. An optical adhesive covers the light-shielding portion and the light-transmitting opening. The color filter array substrate includes a pixel circuit for controlling the degree of deflection of liquid crystal molecules in the liquid crystal cell and a light-filtering portion. The light-filtering portion is disposed opposite to the light-transmitting opening in the black matrix substrate and is used to transmit light of a specific color.

[0026] For example, the first substrate 100 is a color filter substrate, and the second substrate 200 is an array substrate.

[0027] Optionally, the first substrate 100 is an array substrate and the second substrate 200 is a color filter substrate; or, the first substrate 100 is a black matrix substrate and the second substrate 200 is a color filter array substrate; or, the first substrate 100 is a color filter array substrate and the second substrate 200 is a black matrix substrate.

[0028] Taking the first substrate 100 as a color filter substrate as an example, the first substrate body 110 may include a substrate, a light-shielding part 130, a light-filtering part 140 and an optical adhesive layer, etc. That is, the structure formed on the substrate before the preparation of the spacer material together with the substrate constitutes the first substrate body 110.

[0029] A first alignment film 120 and a plurality of spacers 300 are prepared on one side of the first substrate body 110 of the first substrate 100. The spacers 300 are used to maintain a certain cell thickness between the first substrate 100 and the second substrate 200. A liquid crystal layer 400 is formed by injecting liquid crystal into the liquid crystal cell between the first substrate 100 and the second substrate 200. At the same time, the first alignment film 120 is used to guide the liquid crystal molecules in contact with it to a predetermined initial alignment direction, so that the liquid crystal layer 400 at least determines that the liquid crystal layer 400 in contact with the first substrate body 110 side maintains an initial deflection phase.

[0030] The liquid crystal layer 400, located between the first substrate 100 and the second substrate 200, controls the deflection of liquid crystal molecules after the pixel circuit of the array substrate is energized. This controls the amount of light emitted after entering the liquid crystal layer 400 from the backlight module. When the deflection phase of the liquid crystal molecules is the same as the phase of the polarized light incident on the backlight module, the amount of light is maximized, causing the sub-pixel to light up and reach maximum brightness. When the deflection phase of the liquid crystal molecules is perpendicular to the phase of the polarized light incident on the backlight module, the amount of light is minimized, causing the sub-pixel to turn off and reach minimum brightness. Furthermore, the degree of deflection of the liquid crystal molecules can be controlled to control the amount of light, thereby controlling the brightness of the sub-pixel.

[0031] One end of the spacer 300 is fixedly connected to the first substrate body 110, so that there is no first alignment film 120 between the spacer 300 and the first substrate 100. This avoids the problem of the spacer 300 being squeezed, rubbed, or even damaged by the first alignment film 120 when the display panel is squeezed. However, the other end of the spacer 300 may be covered with the first alignment film 120. At the same time, when the display panel is squeezed, there may be a first alignment film 120 between the spacer 300 and at least one of the liquid crystal layer 400, the second substrate 200, and the other spacer 300, which may lead to the technical problems described above.

[0032] Therefore, along the direction perpendicular to the plane of the display panel, at least one spacer 300 is exposed from the first alignment film 120. At least one spacer 300 has no first alignment film 120 remaining at the end facing away from the first substrate body 110, so that the first alignment film 120 is not located at the position farthest from the first substrate body 110. At this position, the spacer 300 directly contacts at least one of the liquid crystal layer 400, the second substrate 200, and the other spacer 300. This eliminates the above-mentioned problems and improves the thickness and strength of the first alignment film 120 at other positions.

[0033] Therefore, the above arrangement can reduce the friction between the end of the spacer 300 away from the first substrate 100 and the first alignment film 120 during mechanical testing. This reduces the probability that the first alignment film 120 at this location will be damaged, become loose, and scrape off debris, thereby causing the display device 2000 to have a broken spot abnormality afterward, thus improving the display performance of the display panel.

[0034] The materials and specific arrangements of the first alignment membrane 120 and the spacer 300 will be further described in the following embodiments of the first aspect and other aspects of this application.

[0035] The display panel provided in the first aspect embodiment of this application reduces the amount of the first alignment film 120 remaining on the top of the spacer 300 by providing at least one spacer 300 exposed from the first alignment film 120. This reduces the probability of friction between the top of the spacer 300 and the first alignment film 120 during mechanical testing, which could damage or detach the first alignment film 120 at that location and cause it to scrape off debris. This, in turn, reduces the probability of the display device 2000 subsequently exhibiting a broken spot, thereby improving the display performance of the display panel.

[0036] In some embodiments, the spacer 300 material includes a hydrophobic material, the first alignment membrane 120 material includes a hydrophilic material, and the water droplet contact angle of the spacer 300 material is greater than the water droplet contact angle of the first alignment membrane 120 material.

[0037] The materials of the spacer 300 and the first alignment membrane 120 are respectively selected as hydrophobic and hydrophilic materials, and the water droplet contact angle of the spacer 300 is greater than that of the first alignment membrane 120. Through the differentiated design of the surface energy level, the distribution position of the first alignment membrane 120 on the surface of the spacer 300 can be controlled and adjusted.

[0038] Specifically, the contact angle is closely related to the surface energy. The smaller the contact angle, the higher the surface energy of the material, the better the wettability and compatibility with water droplets, and the easier it is for water droplets to spread and adhere to the surface. The larger the contact angle, the lower the surface energy of the material, the worse the compatibility with water droplets, and the more difficult it is for water droplets to spread and stay on the surface, and the more likely they are to aggregate and retract.

[0039] Based on this principle, the first alignment film 120 is made of a hydrophilic material, which has a relatively high surface energy and a strong adsorption and spreading ability for water droplets. This is beneficial for the alignment liquid to be uniformly attached to the surface of the first substrate body 110 and form a complete and dense alignment film layer. The spacer 300 is made of a hydrophobic material, which has a relatively low surface energy and a weak adsorption and spreading ability for the alignment liquid. After the alignment liquid is coated on the surface of the spacer 300, it is affected by the repulsion of the hydrophobic surface of the spacer 300 and gravity, and gradually migrates and accumulates in the area closer to the first substrate body 110 with a higher surface energy. However, the alignment liquid is difficult to stably reside at the top of the spacer 300 and in the area far away from the first substrate body 110, thereby further reducing the alignment liquid in that area, or even completely exposing the spacer 300, achieving the effect of at least one spacer 300 being exposed by the first alignment film 120.

[0040] By using the differentiated matching design of the surface properties of the spacer 300 and the first alignment film 120, no additional process steps or complex structures are required. Relying solely on the differences in surface energy characteristics of the materials themselves, the distribution of the alignment liquid can be spontaneously guided during the preparation stage. This allows the alignment film to be concentrated at the root of the spacer 300 rather than at the top, thereby reducing the possibility of alignment film residue at the top of the spacer 300 from the source. This further ensures that the abnormal problem of broken bright spots in mechanical extrusion testing is effectively suppressed, while improving the stability and controllability of the preparation process and enhancing the performance of the display panel.

[0041] In these embodiments, the first alignment film 120 is made of a hydrophilic material and the spacer 300 is made of a hydrophobic material. This increases the difference in surface properties between the first alignment film 120 and the spacer 300, so that when the alignment liquid is coated on the spacer 300 during the preparation of the first alignment film 120, the first alignment film 120 can be concentrated and distributed along the direction of gravity on the side close to the first substrate body 110, thereby achieving that at least one spacer 300 is exposed from the first alignment film 120.

[0042] In some embodiments, the spacer 300 material has a first water droplet contact angle, the first alignment membrane 120 material has a second water droplet contact angle, and the ratio between the first water droplet contact angle and the second water droplet contact angle is not less than 2:1.

[0043] By defining the ratio between the water droplet contact angle of the spacer material 300 and the first alignment membrane 120, the surface performance difference between the spacer material 300 and the first alignment membrane 120 is further quantified and amplified in the numerical dimension, so that the hydrophobicity of the spacer material 300 is significantly different from the hydrophilicity of the first alignment membrane 120.

[0044] Since the contact angle can directly reflect the wetting and repulsion ability of the material surface to the alignment liquid, the larger the contact angle ratio, the more prominent the repulsion effect of the spacer 300 material to the alignment liquid is compared with the adsorption and spreading effect of the first alignment film 120 material to the alignment liquid. The possibility of the alignment liquid gathering and staying on the surface of the spacer 300 is further weakened, thereby prompting the alignment liquid to migrate and gather more fully and stably towards the side closer to the first substrate body 110 and with better wetting performance during the preparation stage.

[0045] By controlling the difference in this ratio within a reasonable range, the repulsion and removal effect of the alignment liquid at the top of the spacer 300 can be further enhanced while ensuring the overall film formation quality of the first alignment film 120. This makes the effect of the spacer 300 being exposed from the first alignment film 120 more stable and reliable, thereby more effectively reducing the probability of debris falling off due to the alignment film residue at the top of the spacer 300 during mechanical extrusion testing, and improving the stability and consistency of the display panel's display performance.

[0046] In these embodiments, by further selecting materials, the ratio difference between the first water droplet contact angle of the septum 300 material and the second water droplet contact angle of the first alignment membrane 120 material is amplified, thereby further increasing the surface performance difference between the first alignment membrane 120 and the septum 300.

[0047] In some embodiments, the first water droplet contact angle is not less than 100°, and the second water droplet contact angle is not more than 60°.

[0048] By limiting the first water droplet contact angle of the spacer material 300 to a higher value range, the spacer material 300 exhibits obvious hydrophobic properties, making it difficult for the alignment liquid to spread and adhere to the surface of the spacer material 300. After the alignment liquid drops onto the surface of the spacer material 300, it tends to maintain an aggregated and contracted shape, which is not conducive to stable residence. At the same time, by limiting the second water droplet contact angle of the first alignment film 120 material to a lower value range, the first alignment film 120 material exhibits obvious hydrophilic properties, allowing the alignment liquid to fully spread and wet the surface of the first substrate body 110, which is beneficial for forming a continuous, uniform film structure with a certain thickness and strength.

[0049] Optionally, the contact angle of the first water droplet is not less than 130°.

[0050] By further increasing the first water droplet contact angle, optionally not less than 130°, the hydrophobic repulsion effect of the spacer 300 material is further enhanced.

[0051] Optionally, the contact angle of the second water droplet does not exceed 50°.

[0052] By further reducing the contact angle of the second water droplet, optionally not exceeding 50°, the hydrophilic spreading effect of the first alignment film 120 material is also further enhanced.

[0053] The combined effect of the first and second water droplet contact angles makes the difference in wetting properties between the top region of the spacer 300 and the region near the first substrate body 110 more significant. This more effectively guides the alignment liquid to spontaneously migrate and accumulate towards the first substrate body 110 during the preparation process, reducing the possibility of alignment liquid retention at the top of the spacer 300. This provides a more reliable material performance basis for subsequently achieving the exposure of the top of the spacer 300 and eliminating the abnormal debris problem in the mechanical extrusion test.

[0054] In some embodiments, the surface energy of the spacer 300 material does not exceed 25 mN / m.

[0055] In these embodiments, by limiting the surface energy of the septum 300 material to a low range, the septum 300 material itself has obvious low surface energy characteristics, which further ensures the repulsion and removal effect of the septum 300 surface on the alignment liquid from the perspective of material properties.

[0056] Materials with low surface energy usually mean that the intermolecular forces on their surface are weak, making it difficult to form effective intermolecular adsorption and wetting with the alignment liquid. When the alignment liquid droplets are attached to the surface of such materials, they tend to maintain an aggregated and contracted shape rather than spread and wet, making it difficult for the alignment liquid to adhere stably to the surface of the septum 300.

[0057] Optionally, the surface energy of the spacer material 300 does not exceed 20 mN / m.

[0058] By controlling the surface energy of the spacer 300 material within a certain range, it is possible to ensure that the spacer 300 has sufficient repulsion ability against the alignment liquid from the perspective of material characteristic parameters. This further reduces the possibility of the alignment liquid remaining or adhering on the top of the spacer 300 and in areas far from the first substrate body 110. It also encourages the alignment liquid to more fully accumulate and distribute towards the side of the first substrate body 110, which has a relatively high surface energy and better wetting performance, during the preparation stage. This more effectively ensures the stable realization of the spacer 300 being exposed by the first alignment film 120, reduces the probability of the alignment film residue on the top of the spacer 300 being damaged by friction and falling off to form debris during mechanical extrusion testing, and improves the display performance of the display panel and the reliability of the manufacturing process.

[0059] In some embodiments, the spacer 300 includes at least one of a fluorinated organic component, a silicon-containing organic component, and an inorganic hydrophobic filler.

[0060] By introducing fluorinated organic components, silicon-containing organic components, or inorganic hydrophobic fillers into the spacer 300 material, the surface energy of the spacer 300 material surface is further reduced from the material composition level, thereby further enhancing the hydrophobic properties of the spacer 300 material.

[0061] Among them, the fluorine atoms in the fluorine-containing organic components have strong electronegativity and small atomic radius. The fluorine atoms form a shielding layer on the outside of the chain segment, which weakens the intermolecular forces, thus making the surface of the spacer 300 exhibit low surface energy and strong hydrophobic repulsion ability.

[0062] The silicon-oxygen segments in the silicon-containing organic components have low surface tension and high segment flexibility, which can spontaneously accumulate on the surface of the spacer 300 and form a low-energy surface layer, which also helps to reduce the surface energy of the spacer 300 material.

[0063] Inorganic hydrophobic fillers further enhance the repulsion effect of the septum 300 material on the alignment liquid by introducing a micro-rough structure on the surface of the septum 300 and reducing the surface free energy.

[0064] By introducing at least one of the above-mentioned fluorine-containing organic components, silicon-containing organic components, and inorganic hydrophobic fillers, the surface energy of the spacer 300 material can be reduced synergistically from both chemical composition and microstructure dimensions. This makes it more difficult for the top region of the spacer 300 to be wetted and adhered by the alignment liquid, thereby more effectively ensuring the effect of the spacer 300 being exposed by the first alignment film 120. This reduces the probability of abnormal debris caused by the alignment film residue at the top of the spacer 300 during mechanical extrusion testing and improves the display performance of the display panel.

[0065] In these embodiments, the surface energy of the spacer 300 material is further reduced by replacing the functional groups of the organic components with fluorine or silicon, and by adding inorganic hydrophobic fillers to the spacer 300 material.

[0066] In some embodiments, the spacer 300 material comprises a first polymer containing a first functional group, the first alignment membrane 120 material comprises a second polymer containing a second functional group, and the dielectric constant of the first functional group is less than the dielectric constant of the second functional group.

[0067] In these embodiments, the dielectric constant of the second functional group is defined to be greater than that of the first functional group, such that the surface of the first alignment film 120 has stronger polarity than the surface of the spacer 300, that is, the surface energy of the first alignment film 120 is greater than that of the spacer 300. The first alignment film 120 tends to exhibit hydrophilic properties, while the surface of the spacer 300 tends to exhibit hydrophobic properties.

[0068] By limiting the dielectric constant of the second functional group to be greater than that of the first functional group, the surface of the first alignment film 120 has stronger polarity than the surface of the spacer 300, thereby making the surface energy of the first alignment film 120 greater than that of the spacer 300. The first alignment film 120 tends to exhibit hydrophilic properties, while the surface of the spacer 300 tends to exhibit hydrophobic properties.

[0069] Since the dielectric constant reflects the ability of polymer functional groups to polarize under the action of an electric field, functional groups with higher dielectric constants usually have stronger polarity and higher surface energy, and their intermolecular interactions and wetting and spreading ability with other liquids are also correspondingly stronger; while functional groups with lower dielectric constants have weaker polarity and correspondingly lower surface energy, making it difficult for them to form effective wetting with other liquids.

[0070] By designing the first polymer of the spacer 300 material and the second polymer of the first alignment membrane 120 material with different polarities at the functional group level, a stable performance difference is further ensured between the repulsion effect of the alignment liquid on the surface of the spacer 300 and the adsorption and spreading effect of other liquids on the surface of the first alignment membrane 120. This more reliably guides the alignment liquid to migrate and aggregate towards the first substrate body 110 during the preparation process, achieving the technical effect of exposing the top of the spacer 300 and reducing the probability of abnormal debris.

[0071] In some embodiments, the first polymer comprises the structure shown in Formula 1, and the first functional group comprises R1 and R2; (1) In Formula 1, n represents an integer in the range of 20 to 1000, and R1 and R2 are each independently selected from fluorine atoms and fluoroalkyl groups.

[0072] In these embodiments, the first polymer in the spacer 300 material is modified with polyacrylate by fluorine substitution at sites R1 and R2 of the polyacrylate, thereby further enhancing the hydrophobicity of the spacer 300 material.

[0073] The first polymer in the spacer 300 material is modified by substituting fluorine atoms or fluoroalkyl groups at the R1 and R2 sites on the polyacrylate main chain. Taking advantage of the strong electronegativity, small atomic radius and weak intermolecular forces of fluorine atoms, the side chains of the first polymer form a shielding structure with low polarity and low surface energy, thereby further improving the overall hydrophobicity of the spacer 300 material.

[0074] The degree of polymerization range represented by n gives the first polymer a suitable segment length and molecular weight, ensuring that while it has excellent hydrophobic properties, it also has good film-forming properties and mechanical stability, which can meet the mechanical strength requirements of the spacer material 300 as a supporting structure.

[0075] Through the above-mentioned fluorine substitution modification, the first polymer spontaneously accumulates on the surface of the septum 300 and forms a low surface energy interface layer, making it difficult for the alignment liquid to spread and remain on the surface. This further ensures the repulsion and removal effect of the alignment liquid in the top region of the septum 300, providing a more reliable material structure basis for the septum 300 to be exposed by the first alignment membrane 120.

[0076] In some embodiments, the second polymer comprises the structure shown in Formula 2, and the first functional group comprises R3, R4, R5, R6, R7 and Ar1; (2) In Formula 2, n represents an integer in the range of 10 to 600. R3, R4, and R5 are each independently selected from one or more of hydroxyl, carboxylic acid, amino, sulfonic acid, and phosphate groups. R6 and R7 are each independently selected from one or more of C0-C10 alkyl, cycloalkyl, heterocyclic, aromatic ring, and aromatic heterocyclic groups, or are combined with surrounding structural bonds to form cycloalkyl, heterocyclic, aromatic ring, or aromatic heterocyclic groups. Ar1 is a C1-C10 alkyl, cycloalkyl, heterocyclic, aromatic ring, or aromatic heterocyclic group.

[0077] The first alignment film 120 material introduces hydrophilic groups with strong polarity and electronegativity, such as hydroxyl, carboxylic acid, amino, sulfonic acid, or phosphate groups, into different substitution sites on the dianhydride monomer and diamine monomer in the polyimide molecular structure. By utilizing the characteristic that these groups can easily form hydrogen bonds or electrostatic interactions with water molecules, the polarity and surface energy of the second polymer are further enhanced, thereby strengthening the overall hydrophilic spreading ability of the first alignment film 120 material.

[0078] The degree of polymerization range represented by n gives the second polymer a suitable molecular weight and chain segment structure, ensuring that the first alignment membrane 120 has good film-forming continuity and film strength while possessing excellent hydrophilic wetting properties.

[0079] By introducing the aforementioned substituent groups, the surface energy of the first alignment film 120 material is further enhanced, making its wettability difference relative to the surface of the spacer 300 more significant. This more effectively guides the alignment liquid to gather and distribute towards the first substrate body 110, ensuring the stable realization of the top exposure effect of the spacer 300.

[0080] In these embodiments, the material of the first alignment membrane 120 is further improved by replacing the hydrophilic groups at different sites on the dianhydride monomer and diamine monomer in the polyimide material.

[0081] Optionally, R3, R4, and R5 may also each appear independently as one or more alkyl-substituted derivatives, aryl-substituted derivatives, cationic salts, anionic salts, or other derivatives selected from hydroxyl, carboxylic acid, amino, sulfonic acid, and phosphoric acid groups.

[0082] By further replacing the aforementioned hydrophilic groups with their alkyl-substituted derivatives, aryl-substituted derivatives, or anionic and cationic salts, the solubility of the second polymer, the adaptability to the film-forming process, and the hydrophilicity of the final film can be flexibly adjusted while retaining the polar characteristics of the groups.

[0083] In some embodiments, the spacer 300 material further includes an inorganic hydrophobic filler comprising silica particles with a diameter of 10 to 20 nanometers.

[0084] By adding nano-sized silica particles to the spacer 300 material, the surface energy of the spacer 300 material is further reduced by utilizing the micro-rough structure formed on the surface of the spacer 300 material, thereby further improving the hydrophobicity of the spacer 300 material.

[0085] After the nano-silica particles are dispersed in the spacer 300 material matrix, they can form a micro-nano scale rough morphology on the surface of the spacer 300. This rough structure can amplify the hydrophobic properties of the spacer 300 material itself, making the alignment liquid droplets more inclined to exhibit an aggregated and contracted form on the surface, making it difficult to spread and wet.

[0086] Meanwhile, the defined particle diameter range ensures that silica particles are uniformly dispersed in the spacer 300 material and form a stable microstructure, avoiding the impact on the film uniformity and mechanical properties of the spacer 300 material due to excessively large or small particle size.

[0087] By introducing this inorganic hydrophobic filler into the spacer 300 material, the hydrophobic repulsion effect of the spacer 300 surface can be further enhanced at the microstructure level on the basis of organic component modification. This will more fully ensure the expulsion and migration of the alignment liquid in the top region of the spacer 300, reduce the probability of abnormal debris caused by alignment film residue in mechanical extrusion test, and improve the overall display performance of the display panel.

[0088] In these embodiments, the addition of silica particles to the spacer 300 material can further effectively reduce the surface energy of the spacer 300 material surface, thereby further improving the hydrophobicity.

[0089] Please continue reading. Figure 1 In some embodiments, the spacer 300 includes a first end 310, a second end 320 and a side wall surface 330. The first end 310 and the second end 320 are disposed opposite each other along a direction perpendicular to the plane where the display panel is located, and the side wall surface 330 is bent and connected to the first end 310 and the second end 320.

[0090] The first end 310 is fixedly connected to the first substrate body 110, and at least one spacer 300 has a side wall surface 330 that contacts the first alignment film 120 on the end face near the first end 310. Along the direction perpendicular to the plane where the display panel is located, the portion of the side wall surface 330 that extends beyond the first alignment film 120 and the end face of the second end 320 are both in contact with the liquid crystal layer 400.

[0091] By defining the structure of the first end 310, the second end 320, and the side wall 330 of the spacer 300, it is clear that the spacer 300 serves as a columnar support structure, with the first end 310 serving as a fixed connection to the first substrate body 110. This ensures that the spacer 300 does not shift or fall off when the display panel is subjected to external pressure, thus maintaining a stable support effect.

[0092] The sidewall 330 serves as a transition structure connecting the first end 310 and the second end 320. The portion of the sidewall 330 near the first end 310 accumulates and adheres to the alignment liquid due to gravity and surface energy differences, maintaining contact with the first alignment film 120. The portion of the sidewall 330 extending beyond the first alignment film 120 and the end face of the second end 320 are directly exposed to the liquid crystal layer 400 and in contact with it because the alignment liquid has difficulty staying in this area.

[0093] By defining the end face of the spacer 300 exposed at the second end 320 and the portion of the sidewall 330 near the second end 320 as the part of the spacer 300 exposed at the first alignment film 120, the distribution direction of the alignment liquid on the surface of the spacer 300 along the height direction is further clarified, so that the alignment film is no longer left at the top of the spacer 300 and the adjacent area. This directly eliminates the risk of debris generated in this area due to friction damage to the alignment film at the structural level, and provides a clear structural basis for improving the reliability of the display panel in mechanical extrusion testing.

[0094] Figure 2 and Figure 3 A cross-sectional structure of another display panel provided in the first aspect embodiment of this application is shown.

[0095] Please see Figure 2 and Figure 3In some embodiments, the spacer 300 includes a first end 310, a second end 320 and a side wall surface 330. The first end 310 and the second end 320 are disposed opposite each other along a direction perpendicular to the plane where the display panel is located, and the side wall surface 330 is bent and connected to the first end 310 and the second end 320.

[0096] The display panel also includes an abutment portion, the first end 310 of the spacer 300 is fixedly connected to the first substrate body 110, the second end 320 of the spacer 300 is in contact with the abutment portion, and the abutment portion and the first alignment film 120 are spaced apart by the liquid crystal layer 400.

[0097] By introducing the abutment portion structure in the display panel, the second end 320 of the spacer 300 no longer directly contacts other film layers on one side of the second substrate body 210. Instead, it supports and maintains the cell thickness through abutment engagement with the abutment portion. This creates a spatial relationship between the second end 320 of the spacer 300 and the first alignment film 120, separated by the liquid crystal layer 400, thus preventing direct contact between the first alignment film 120 and the second end 320 of the spacer 300.

[0098] Since the contact portion and the first alignment film 120 are spaced apart by the liquid crystal layer 400, even if the display panel is subjected to external pressure during the mechanical extrusion test, the friction and extrusion between the second end 320 of the spacer 300 and the contact portion will not affect the area where the first alignment film 120 is located. This further isolates the possible friction damage path between the top of the spacer 300 and the first alignment film 120 from the structural layout level, reduces the probability of the alignment film being scratched and freed to generate debris, and also provides a more stable and reliable support and fit method for the structural design of the top of the spacer 300 exposing the first alignment film 120, which is conducive to improving the overall extrusion resistance and display reliability of the display panel.

[0099] Please see Figure 2 In some embodiments, the second substrate 200 includes a second substrate body 210 and a second alignment film 220, with the second alignment film 220 located on the side of the second substrate body 210 near the liquid crystal layer 400.

[0100] The contact portion includes a second alignment film 220. The second end 320 of the spacer 300 is disposed in contact with the second alignment film 220. Along the direction perpendicular to the plane where the display panel is located, the portion of the side wall surface 330 that extends beyond the first alignment film 120 is in contact with the liquid crystal layer 400.

[0101] The abutment portion is directly set as the second alignment film 220, so that the second end 320 of the spacer 300 comes into contact with the second alignment film 220 when the display panel is subjected to external pressure. The second alignment film 220 bears the role of supporting and buffering the pressure of the second end 320 of the spacer 300, thereby maintaining the cell thickness stability between the first substrate 100 and the second substrate 200.

[0102] Since the portion of the sidewall 330 of the spacer 300 that extends beyond the first alignment film 120 is in direct contact with the liquid crystal layer 400, and is not covered by the first alignment film 120, the friction on one side of the top of the spacer 300 mainly occurs between the second end 320 of the spacer 300 and the second alignment film 220. The area where the first alignment film 120 is located is not easily affected by the friction, thus further reducing the risk of the first alignment film 120 being damaged by friction and producing debris.

[0103] The second alignment film 220 has no spacer 300 structure on one side. When the second alignment film 220 is prepared, the alignment liquid can be spread out on the whole surface. The second alignment film 220 has a uniform thickness and consistent strength. Therefore, it can further reduce the second alignment film 220 from being damaged by friction and generating debris, and reduce the probability of bright spots appearing on the display panel in subsequent lighting tests.

[0104] By utilizing the second alignment film 220 as the abutment portion, there is no need to add other support structures on one side of the second substrate body 210, which can achieve stable abutment support of the second end 320 of the spacer 300, simplifying the structural design of the display panel and ensuring the stability of the display panel's display performance during mechanical extrusion testing.

[0105] Please see Figure 3 In some embodiments, the second substrate 200 includes a second substrate body 210, a second alignment film 220 and a plurality of spacers 300. The second alignment film 220 and the spacers 300 are located on the side of the first substrate body 110 near the liquid crystal layer 400. The first end 310 of the spacer 300 is also fixedly connected to the second substrate body 210. In this embodiment, at least one spacer 300 is exposed from the second alignment film 220 along a direction perpendicular to the plane of the display panel.

[0106] The contact portion includes spacers 300. There are at least two spacers 300 that are fixedly connected to the first substrate body 110 and the second substrate body 210 respectively. The second ends 320 of the two spacers are in contact with each other, and the sidewalls 330 of the two spacers that extend beyond the first alignment film 120 are in contact with the liquid crystal layer 400.

[0107] By providing spacers 300 and second alignment films 220 on one side of the second substrate body 210, and by having the second ends 320 of the two spacers 300, which are respectively fixed to the first substrate body 110 and the second substrate body 210, abut against each other, the two spacers 300 together form an abutment structure, thereby achieving bidirectional support and maintenance of the thickness between the first substrate 100 and the second substrate 200.

[0108] Based on the same technical principle as the first substrate 100, the spacer 300 on the second substrate 200 is also exposed from the second alignment film 220 by at least one spacer 300, which reduces the residue of the second alignment film 220 on the top of the spacer 300. This ensures that neither the first alignment film 120 nor the second alignment film 220 covers the two spacers 300 on the side of the second end 320 where they abut each other, thereby eliminating the possibility of debris being generated at the abutting contact position due to friction damage of the first alignment film 120 or the second alignment film 220.

[0109] The portions of the sidewalls 330 of the two spacers 300 that extend beyond their respective first alignment films 120 or second alignment films 220 are in contact with the liquid crystal layer 400, further ensuring that the frictional action is concentrated between the spacers 300 bodies and does not involve the first alignment films 120 or second alignment films 220. By symmetrically arranging spacers 300 on both sides of the first substrate 100 and the second substrate 200, with the spacers 300 exposed from the first alignment films 120 or second alignment films 220 and the spacers 300 abutting against each other to form support, the risk of abnormal bright spots caused by the residue of the first alignment films 120 or second alignment films 220 during mechanical extrusion testing can be more comprehensively eliminated, thereby further improving the overall display performance and reliability of the display panel.

[0110] Please see Figure 1 In some embodiments, the spacer 300 includes a first end 310, a second end 320 and a side wall surface 330. The first end 310 and the second end 320 are disposed opposite each other along a direction perpendicular to the plane where the display panel is located, and the side wall surface 330 is bent and connected to the first end 310 and the second end 320.

[0111] The first end 310 is fixedly connected to the first substrate body 110. In the same spacer 300, the end face roughness of the first end 310 is less than the end face roughness of the second end 320 and the surface roughness of the side wall surface 330 extending beyond the first alignment film 120.

[0112] By roughening the portion of the septum 300 that exposes the first alignment film 120, namely the end face of the second end 320 and the portion of the sidewall surface 330 that extends beyond the first alignment film 120, using chemical or mechanical means, the surface roughness of this area is made greater than the surface roughness of the end face of the first end 310. This further removes and eliminates any possible residue of the first alignment film 120 on the surface of this area of ​​the septum 300 from a process perspective, avoiding the problem of local trace residues that may exist when the alignment liquid is guided to migrate and distribute solely based on surface energy differences.

[0113] Since the first end 310 of the spacer 300 is fixedly connected to the first substrate body 110, no additional roughening treatment is required on the surface there. Maintaining a relatively low surface roughness is sufficient to ensure the stability and compactness of the connection between the spacer 300 and the first substrate body 110. The portion of the second end 320 and the side wall 330 of the spacer 300 that extends beyond the first alignment film 120 serves as the area that will directly contact and rub against the liquid crystal layer 400, the second substrate 200, or the spacer 300 in subsequent mechanical extrusion tests. The roughening treatment further destroys and removes any first alignment film 120 that may be attached to this area, making the surface of this area more like the exposed state of the spacer 300 body material, reducing the possibility of the alignment film falling off and forming debris under friction.

[0114] By introducing surface roughness differentiation treatment on the basis of surface energy differentiation design, the residue of the first alignment film 120 in the top area of ​​the spacer 300 can be eliminated by chemical removal or mechanical removal, thereby further eliminating the risk of abnormal bright spots caused by the residue of the first alignment film 120 in mechanical extrusion test, and improving the overall display performance and reliability of the display panel.

[0115] In these embodiments, the portion of the spacer 300 exposing the first alignment film 120 is further roughened, and the first alignment film 120 on the surface of the spacer 300 is further removed by chemical or mechanical means, thereby further eliminating the risk of abnormal bright spots caused by the first alignment residue during mechanical extrusion testing, thereby further improving the overall display performance and reliability of the display panel.

[0116] Figure 4 A flowchart illustrating the steps of a method for manufacturing a display panel according to a second aspect embodiment of this application is shown.

[0117] Please see Figure 4 Secondly, embodiments of this application provide a method for manufacturing a display panel, comprising: Step S10: Prepare a spacer on one side of the first substrate body, and fix one end of the spacer to the first substrate body; Step S20: A first alignment film is prepared on one side of the first substrate body, and at least one spacer is exposed from the first alignment film along a direction perpendicular to the plane of the first substrate body. Step S30: The surface of the first substrate body on the side where the first alignment film is disposed is aligned and bonded with the second substrate, and the first alignment film, the second substrate and the spacer are surrounded to form a liquid crystal cell. Step S40: Inject liquid crystal into the liquid crystal cell to form a liquid crystal layer.

[0118] Step S10 involves first preparing a spacer on one side of the first substrate body and fixing one end of it to the first substrate body, thus providing a pre-set support structure foundation for the subsequent preparation of the first alignment film and the maintenance of the liquid crystal cell thickness.

[0119] Step S20 further prepares the first alignment membrane based on the preparation of the spacer material. By limiting the setting that at least one spacer material is exposed from the first alignment membrane, the structural effect of no alignment membrane residue on the top of the aforementioned spacer material is directly achieved from the process flow level. This lays the foundation for reducing the probability of alignment membrane friction damage and debris abnormalities in subsequent mechanical extrusion tests.

[0120] Step S30 involves aligning and bonding the first substrate body, after the first alignment film has been prepared, with the second substrate, and using the first alignment film, the second substrate, and the spacer to enclose and form a liquid crystal cell, thereby realizing the construction of the liquid crystal cell spatial structure and providing a sealed and dimensionally stable accommodating space for subsequent liquid crystal injection.

[0121] Step S40 involves injecting liquid crystal into the enclosed liquid crystal cell to form a liquid crystal layer, thus completing the fabrication of the core functional layer in the display panel used for light deflection control.

[0122] The method for preparing a display panel provided in the second aspect of this application has the beneficial effects of the display panel provided in any of the first aspects of this application since it is used to prepare a display panel for any of the first aspects of this application. It will not be described again here.

[0123] Figure 5 A flowchart illustrating the steps of another method for manufacturing a display panel according to an embodiment of the second aspect of this application is shown.

[0124] Please see Figure 5 In some embodiments, the spacer includes a first end, a second end, and a sidewall. Along a direction perpendicular to the plane of the first substrate body, the first end and the second end are disposed opposite each other, and the sidewall is bent and connected to the first end and the second end. The first end is fixedly connected to the first substrate. Step S20 further includes: S21. Apply alignment liquid, the alignment liquid condenses and solidifies to form a first alignment film, at least one sidewall of a septum is in contact with the first alignment film on the side near the first end; S22. Roughen the surface of the second end of the septum and the portion of the sidewall that extends beyond the first alignment membrane.

[0125] Step S21 involves coating the alignment liquid onto one side of the first substrate body and then undergoing a polycondensation curing reaction to form a first alignment film. By utilizing the surface energy difference between the aforementioned spacer material and the first alignment film material, the alignment liquid spontaneously gathers and distributes towards the area with higher surface energy near the first end during the curing process. This naturally forms a structural state at the process implementation level where the sidewall of the spacer near the first end is in contact with the first alignment film, while the rest is not covered.

[0126] Step S22 further roughens the surface of the second end and sidewall of the spacer that extends beyond the first alignment film after the alignment liquid condensation and curing is completed in step S21. This roughens the surface of the spacer that extends beyond the first alignment film by means of chemical or mechanical means, thereby removing any trace residue of the first alignment film that may exist in this area. This achieves the aforementioned technical solution of further ensuring the exposure of the top of the spacer by means of surface roughness differences.

[0127] For example, the alignment liquid consists of 3% to 7% polyimide and more than 60% solvent, with N-methylpyrrolidone (NMP) being the main solvent.

[0128] By implementing steps S21 and S22 in sequence, the top region of the spacer can be further treated by roughening the film formed by the polycondensation and solidification of the alignment liquid itself. This ensures the stability and reliability of the spacer exposed from the first alignment film from the process flow perspective.

[0129] The proportion of polyimide in the alignment liquid and the ratio of solvent mainly composed of N-methylpyrrolidone can provide the alignment liquid with suitable viscosity and fluidity, ensuring that the alignment liquid has good spreading and spontaneous migration ability during the coating process. This allows it to better utilize the surface energy difference between the spacer and the first alignment film material, achieving the effect of the alignment liquid gathering towards the first substrate body before curing.

[0130] In some embodiments, step S21 further includes an alignment liquid with a surface tension greater than 35 mN / m.

[0131] Preferably, the surface tension of the alignment liquid is greater than 40 mN / m.

[0132] By limiting the alignment liquid to have a high surface tension, the alignment liquid tends to shrink and aggregate rather than spread and wet after being coated on the surface of the septum. This further enhances the repulsion effect of the alignment liquid on the hydrophobic surface of the septum from the perspective of the physical properties of the alignment liquid itself, and promotes the alignment liquid to migrate and aggregate more fully towards the area closer to the first substrate body with better wetting performance.

[0133] As the surface tension of a liquid is higher, the energy barrier that it needs to overcome to spread on a low surface energy surface is also higher. The tendency of the alignment liquid to remain and adhere on the top of the spacer and in the area away from the first substrate body will be further weakened, thereby more effectively cooperating with the hydrophobic properties of the spacer material to ensure that the alignment liquid fully migrates to the first substrate body side before curing into a film.

[0134] By further increasing the surface tension of the alignment liquid to a preferred range, the repulsion effect of the alignment liquid on the surface of the spacer is further enhanced, making the first alignment film exposed at the top of the spacer more thorough and stable. This further reduces the probability of abnormal debris caused by alignment film residue at the top of the spacer during mechanical extrusion testing, and improves the manufacturing yield and display performance reliability of the display panel.

[0135] Figure 6 The overall structure of a display device 2000 provided in a third aspect embodiment of this application is shown.

[0136] Please see Figure 6 Thirdly, embodiments of this application provide a display device 2000, including the display panel 1000 provided in any first aspect embodiment of this application, or a display panel formed by the method for preparing the display panel provided in any second aspect embodiment of this application.

[0137] The display device 2000 provided in the third aspect embodiment of this application includes the display panel 1000 provided in any first aspect embodiment of this application, or is formed by the method of preparing the display panel provided in any second aspect embodiment of this application. Therefore, it has the beneficial effects of the display panel 1000 provided in any first aspect embodiment of this application or the method of preparing the display panel provided in any second aspect embodiment of this application, which will not be described in detail here.

[0138] The display device 2000 in this application embodiment includes, but is not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0139] The display device 2000 can be any device with a display function, such as mobile devices such as mobile phones, tablets, laptops, handheld computers, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), as well as non-mobile devices such as personal computers (PCs), televisions (TVs), ATMs, or self-service machines.

[0140] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: A first substrate, a second substrate, and a liquid crystal layer are provided, wherein the liquid crystal layer is sandwiched between the first substrate and the second substrate, and the first substrate includes a first substrate body, a first alignment film, and a plurality of spacers. The first alignment film and the spacers are located on the side of the first substrate body close to the liquid crystal layer, and one end of the spacers is fixedly connected to the first substrate body. In this configuration, at least one of the spacers is exposed from the first alignment film along a direction perpendicular to the plane of the display panel.

2. The display panel according to claim 1, characterized in that, The septum material includes a hydrophobic material, the first alignment membrane material includes a hydrophilic material, and the water droplet contact angle of the septum material is greater than that of the first alignment membrane material.

3. The display panel according to claim 2, characterized in that, The septum material has a first water droplet contact angle, the first alignment membrane material has a second water droplet contact angle, and the ratio between the first water droplet contact angle and the second water droplet contact angle is not less than 2:

1.

4. The display panel according to claim 3, characterized in that, The contact angle of the first water droplet is not less than 100°, and the contact angle of the second water droplet is not more than 60°.

5. The display panel according to claim 4, characterized in that, The surface energy of the spacer material does not exceed 25 mN / m.

6. The display panel according to claim 2, characterized in that, The septum material includes at least one of fluorinated organic components, silicon-containing organic components, and inorganic hydrophobic fillers.

7. The display panel according to claim 6, characterized in that, The spacer material includes a first polymer containing a first functional group, the first alignment film material includes a second polymer containing a second functional group, and the dielectric constant of the first functional group is less than the dielectric constant of the second functional group.

8. The display panel according to claim 7, characterized in that, The first polymer comprises the structure shown in Formula 1, wherein the first functional group comprises R1 and R2; （1） In Formula 1, n represents an integer in the range of 20 to 1000, and R1 and R2 are each independently selected from fluorine atoms and fluoroalkyl groups.

9. The display panel according to claim 7, characterized in that, The second polymer comprises the structure shown in Formula 2, wherein the first functional group comprises R3, R4, R5, R6, R7 and Ar1; （2） In Formula 2, n represents an integer in the range of 10 to 600. R3, R4, and R5 are each independently selected from one or more of hydroxyl, carboxylic acid, amino, sulfonic acid, and phosphate groups. R6 and R7 are each independently selected from one or more of C0-C10 alkyl, cycloalkyl, heterocyclic, aromatic ring, and aromatic heterocyclic groups, or synthesized by bonds with surrounding structures to form cycloalkyl, heterocyclic, aromatic ring, or aromatic heterocyclic groups. Ar1 is a C1-C10 alkyl, cycloalkyl, heterocyclic, aromatic ring, or aromatic heterocyclic group.

10. The display panel according to claim 7, characterized in that, The spacer material also includes inorganic hydrophobic fillers, which consist of silica particles with a diameter of 10 to 20 nanometers.

11. The display panel according to claim 1, characterized in that, The spacer includes a first end, a second end, and a side wall. Along a direction perpendicular to the plane where the display panel is located, the first end and the second end are disposed opposite each other, and the side wall is bent and connected to the first end and the second end. The first end is fixedly connected to the first substrate body, and at least one of the sidewalls of the spacer is in contact with the first alignment film on the side face near the first end. Along the direction perpendicular to the plane where the display panel is located, the portion of the sidewall extending beyond the first alignment film and the end face of the second end are both in contact with the liquid crystal layer.

12. The display panel according to claim 1, characterized in that, The spacer includes a first end, a second end, and a side wall. Along a direction perpendicular to the plane where the display panel is located, the first end and the second end are disposed opposite each other, and the side wall is bent and connected to the first end and the second end. The display panel further includes an abutment portion, the first end of the spacer is fixedly connected to the first substrate body, the second end of the spacer is in contact with the abutment portion, and the abutment portion and the first alignment film are spaced apart by the liquid crystal layer.

13. The display panel according to claim 12, characterized in that, The second substrate includes a second substrate body and a second alignment film, wherein the second alignment film is located on the side of the second substrate body closer to the liquid crystal layer; The abutting portion includes the second alignment film, and the second end of the spacer is abutted against the second alignment film. Along the direction perpendicular to the plane where the display panel is located, the portion of the side wall surface that extends beyond the first alignment film is in contact with the liquid crystal layer.

14. The display panel according to claim 12, characterized in that, The second substrate includes a second substrate body, a second alignment film, and a plurality of spacers. The second alignment film and the spacers are located on the side of the first substrate body near the liquid crystal layer. The first end of the spacer is also fixedly connected to the second substrate body. In a direction perpendicular to the plane of the display panel, at least one of the spacers is exposed by the second alignment film. The contact portion includes the spacer, and there are at least two spacers that are respectively fixedly connected to the first substrate body and the second substrate body. The second ends of the two spacers are in contact with each other, and the portions of the sidewalls of the two spacers that extend beyond the first alignment film are in contact with the liquid crystal layer.

15. The display panel according to claim 1, characterized in that, The spacer includes a first end, a second end, and a side wall. Along a direction perpendicular to the plane where the display panel is located, the first end and the second end are disposed opposite each other, and the side wall is bent and connected to the first end and the second end. The first end is fixedly connected to the first substrate body. In the same spacer, the surface roughness of the first end is less than the surface roughness of the second end and the surface roughness of the portion of the sidewall that extends beyond the first alignment film.

16. A method for manufacturing a display panel, characterized in that, include: A spacer is prepared on one side of the first substrate body, and one end of the spacer is fixedly connected to the first substrate body; A first alignment film is prepared on one side of the first substrate body, and at least one of the spacers is exposed from the first alignment film along a direction perpendicular to the plane of the first substrate body. The first substrate body has the surface on the side where the first alignment film is disposed, and the second substrate are aligned and bonded together, and the first alignment film, the second substrate and the spacer are surrounded to form a liquid crystal cell. Liquid crystal is injected into the liquid crystal cell to form a liquid crystal layer.

17. The method for manufacturing a display panel according to claim 16, characterized in that, The spacer includes a first end, a second end, and a sidewall surface. Along a direction perpendicular to the plane of the first substrate body, the first end and the second end are positioned opposite each other, and the sidewall surface is bent and connected to the first end and the second end. The first end is fixedly connected to the first substrate body. The step of preparing a first alignment film on one side of the first substrate body further includes: An alignment liquid is applied, which then condenses and solidifies to form the first alignment film, wherein at least one sidewall surface of the septum is in contact with the first alignment film on the side closest to the first end. The second end of the septum and the surface of the sidewall extending beyond the first alignment membrane are roughened.

18. The method for manufacturing a display panel according to claim 17, characterized in that, The step of applying the alignment liquid also includes: The surface tension of the alignment liquid is greater than 35 mN / m.

19. A display device, characterized in that, The display panel includes any one of claims 1 to 15, or a display panel formed by the method for preparing the display panel according to any one of claims 16 to 18.

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