Display module, preparation method thereof and display device
By spraying silica material on the display substrate to form a protective layer, the problems of large thickness, poor flexibility and easy dirt are solved, and higher anti-fouling performance and flexibility are achieved, and the display equipment is thinner and folded.
Patent Information
- Application Number
- CN202510121098.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-05-02
AI Technical Summary
The existing display screens are thicker in thickness, low flexibility and easy to dirt, making it difficult to achieve the goal of lightweight and folding, affecting the display effect and operating performance.
The antifouling performance and flexibility of the display screen are increased by spraying at least one protective layer on the light-exposed surface of the display substrate and at least part of the side walls.
It improves the anti-fouling performance of the display screen, extends the service life, thins the thickness of the display screen, and improves flexibility, which is conducive to the lightness and folding of the display equipment, and improves the display effect and operating performance.
Smart Images
Figure CN119923155A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display technology, and in particular to a display module and a preparation method thereof, and a display device. Background Art
[0002] With the development of science and technology, people's demand for display devices is getting higher and higher. At present, display devices are gradually developing in the direction of being thinner and foldable, and the requirements for the thickness and flexibility of display screens are also gradually increasing. Due to the diversity of application scenarios of display devices, display screens are prone to dirt during long-term use, resulting in blurred display and affecting operation. In addition, with the popularization of mobile display devices and the diversification of human-computer interaction functions of display devices, further requirements are put forward for display screens to be anti-fouling and antibacterial. However, existing display screens have problems such as thick thickness, low flexibility and easy dirtiness, which is not conducive to achieving the goal of thinner and foldable display devices, and affects the display effect and operating performance. Summary of the invention
[0003] In view of this, the embodiments of the present application are directed to providing a display module and a method for manufacturing the same, and a display device, so as to solve the problems of thick display screen, low flexibility and easy dirtiness.
[0004] In a first aspect, the present application provides a display module, comprising: a display substrate; and at least one protective layer, the protective layer covering a light emitting surface and at least a portion of a side wall of the display substrate, wherein the material of the protective layer comprises silicon dioxide.
[0005] In one embodiment, the thickness of the protection layer is greater than or equal to 0.1 um and less than or equal to 0.4 um.
[0006] In one embodiment, the at least one protective layer includes a plurality of protective layers, and the plurality of protective layers are stacked on the light emitting surface and at least a portion of the side wall of the display substrate.
[0007] In one embodiment, the display substrate includes a display layer, a polarizing layer and a touch layer, and the polarizing layer is located between the display layer and the touch layer.
[0008] The second aspect of the present application provides a method for preparing a display module, comprising: spraying a first liquid material on a light-emitting surface and at least a portion of a side wall of a display substrate, the first liquid material comprising silicon dioxide; and curing the first liquid material to form a first protective layer.
[0009] In one embodiment, curing the first liquid material includes: leaving the display substrate to stand for a preset time; and baking the first liquid material at a high temperature.
[0010] In one embodiment, after forming the first protective layer, the method for preparing the display module also includes: spraying a second liquid material on the surface of the first protective layer away from the display substrate, the second liquid material including silicon dioxide; curing the second liquid material to form a second protective layer; preferably, the second protective layer includes multiple layers; preferably, spraying the second liquid material multiple times on the surface of the first protective layer away from the display substrate; curing the second liquid material to form a second protective layer.
[0011] In one embodiment, before the step of spraying the second liquid material on the surface of the first protective layer facing away from the display substrate, the method for preparing the display module further includes: cooling the first protective layer; preferably, after forming the second protective layer, the method for preparing the display module further includes: cooling the second protective layer; preferably, after cooling the second protective layer, the method for preparing the display module further includes: cleaning the surface of the second protective layer facing away from the first protective layer.
[0012] In one embodiment, before the step of spraying the first liquid material on the light-emitting surface and at least part of the side wall of the display substrate, the method for preparing the display module further includes: mixing the silicon dioxide liquid with water in a preset ratio to obtain the first liquid material. Preferably, before the step of spraying the first liquid material on the light-emitting surface and at least part of the side wall of the display substrate, the method for preparing the display module further includes: providing a substrate; sequentially preparing a transistor layer, a light-emitting device layer and a packaging layer on one side of the substrate to obtain a display layer; attaching a polarizing layer to the surface of one side of the display layer; attaching a touch layer to the surface of the polarizing layer away from the display layer to obtain a display substrate.
[0013] A third aspect of the present application provides a display device, comprising the display module mentioned in any of the above embodiments, or a display module obtained by the method for preparing the display module mentioned in any of the above embodiments.
[0014] The technical solution provided by the present application protects the display substrate by setting at least one protective layer to cover the light-emitting surface and at least part of the side wall of the display substrate, thereby reducing the risk of dirt and damage to the display substrate. Moreover, the material of the protective layer includes silicon dioxide, and the fluid coating is formed by silicon dioxide, so that the thickness of the protective layer is easier to control, and the protective layer formed by curing has higher flexibility. In addition, the protective layer formed by silicon dioxide has good hydrophobicity and transparency, which can better protect the display substrate from water vapor erosion and does not affect the optical path of the display substrate. In summary, the technical solution provided by the present application can improve the anti-fouling performance of the display screen, extend the service life of the display screen, help to reduce the thickness of the display screen, improve the flexibility of the display screen, help to achieve the goal of thinning and folding the display device, and improve the display effect and operating performance of the display device.
[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 Shown is a schematic structural diagram of a display module provided in one embodiment of the present application.
[0018] Figure 2 Shown is a schematic structural diagram of a display module provided in another embodiment of the present application.
[0019] Figure 3 Shown is a structural schematic diagram of a display module provided in yet another embodiment of the present application.
[0020] Figure 4 Shown is a structural schematic diagram of a display module provided in yet another embodiment of the present application.
[0021] Figure 5 FIG. 1 is a schematic diagram of a process for preparing a display module provided in an embodiment of the present application.
[0022] Figure 6 FIG. 1 is a schematic flow chart of a method for preparing a display module provided in another embodiment of the present application.
[0023] Figure 7 FIG. 1 is a schematic flow chart of a method for preparing a display module provided in yet another embodiment of the present application.
[0024] Figure 8 FIG. 1 is a schematic flow chart of a method for preparing a display module provided in yet another embodiment of the present application.
[0025] Fig. 9 FIG. 1 is a schematic flow chart of a method for preparing a display module provided in yet another embodiment of the present application.
[0026] Fig.10 Shown is a schematic flow chart of a method for preparing a display substrate provided in yet another embodiment of the present application.
[0027] Fig.11 Shown is a schematic flow chart of a method for preparing a display substrate provided in yet another embodiment of the present application.
[0028] Fig.12 Shown is a schematic structural diagram of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION
[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0030] Figure 1 FIG. 1 is a schematic diagram of the structure of a display module provided in an embodiment of the present application. Figure 1 As shown, the display module includes: a display substrate 100 and at least one protective layer 110. The protective layer 110 covers the light emitting surface and at least part of the side wall of the display substrate 100, and the material of the protective layer 110 includes silicon dioxide.
[0031] Specifically, the display substrate 100 includes a light emitting surface, a side wall and a back surface. The light emitting surface of the display substrate 100 is a side surface of the display substrate 100 for emitting light. Covering the light emitting surface of the display substrate 100 with at least one protective layer 110 can protect the display substrate 100 and prevent the display substrate 100 from getting dirty during long-term use, resulting in blurred display and affecting operation. In addition, at least one protective layer 110 is provided to not only cover the light emitting surface of the display substrate 100, but also to cover at least part of the side wall of the display substrate 100, thereby reducing the risk of edge damage. Silicon dioxide is a material with good transparency and strong chemical stability. Therefore, the protective layer 110 made of silicon dioxide has high light transmittance, will not affect the optical path of the display substrate 100, and has good hydrophobicity, which can prevent corrosive substances such as water vapor and oxygen from damaging the display substrate 100.
[0032] For example, a liquid material containing silicon dioxide can be solidified to form the protective layer 110. The liquid material containing silicon dioxide is coated on the light-emitting surface and at least part of the side wall of the display substrate 100 to form a fluid coating, and the fluid coating is then solidified to form the protective layer 110. In this way, the thickness of the protective layer 110 can be adjusted by adjusting the thickness of the fluid coating, so that it is easier to reduce the thickness of the protective layer 110. In addition, when the fluid coating formed by the silicon dioxide liquid material is in a fluid state, it has a better degree of adhesion with the display substrate 100. When the display substrate 100 is a flexible substrate, the protective layer 110 formed by curing the fluid coating has higher flexibility.
[0033] The technical solution of this embodiment protects the display substrate 100 by providing at least one protective layer 110 to cover the light-emitting surface and at least part of the side wall of the display substrate 100, thereby reducing the risk of dirt and damage to the display substrate 100. Moreover, the material of the protective layer 110 includes silicon dioxide, and the fluid coating is formed by using silicon dioxide, so that the thickness of the protective layer 110 is easier to control, and the protective layer 110 formed by curing has higher flexibility. In addition, the protective layer 110 formed by using silicon dioxide has good hydrophobicity and transparency, which can better protect the display substrate 100 from water vapor erosion and does not affect the optical path of the display substrate 100. In summary, the display module provided in this embodiment can improve the anti-fouling performance of the display screen, extend the service life of the display screen, help to reduce the thickness of the display screen, improve the flexibility of the display screen, help to achieve the goal of thinning and folding the display device, and improve the display effect and operating performance of the display device.
[0034] In one embodiment, the thickness of the protection layer 110 is greater than or equal to 0.1 um and less than or equal to 0.4 um.
[0035] For example, the thickness of the protective layer 110 may be 0.1um, 0.2um, or 0.3um, etc. If the protective layer 110 is too thick, the light transmittance may decrease, affecting the display effect, while if the protective layer 110 is too thin, the protective effect on the display substrate 100 may be reduced. Therefore, the thickness of the protective layer 110 is limited to the range of 0.1-0.4um, so that the protective layer 110 can provide effective protection for the display substrate 100, while minimizing light loss and maintaining the clarity and brightness of the display module.
[0036] In one embodiment, the at least one protective layer 110 includes a plurality of protective layers 110 , and the plurality of protective layers 110 are stacked on the light emitting surface and at least a portion of the sidewall of the display substrate 100 .
[0037] Specifically, a plurality of protective layers 110 are stacked on the light emitting surface and at least a portion of the sidewall of the display substrate 100 to further protect the display substrate 100. Exemplarily, the number of protective layers 110 may be greater than or equal to 5 and less than or equal to 10. The thickness of each protective layer 110 may be the same or different.
[0038] In this embodiment, multiple protective layers 110 are stacked on the light-emitting surface and at least part of the sidewall of the display substrate 100. Compared with a single-layer protective layer 110, the multi-layer protective layer 110 increases the overall mechanical strength, making the display module more resistant to impact and pressure, and each layer can provide protection against different external factors (such as physical impact, chemicals, moisture, etc.). In this way, even if a certain layer of protective layer 110 is damaged, the other protective layers 110 can still continue to provide protection, reducing the possibility of harmful substances penetrating into the display substrate 100.
[0039] Figure 2 FIG. 1 is a schematic diagram of a structure of a display module provided in another embodiment of the present application. Figure 2 As shown, the display substrate includes a display layer 101 , a polarizing layer 102 and a touch layer 103 , and the polarizing layer 102 is located between the display layer 101 and the touch layer 103 .
[0040] Specifically, the display layer 101 includes a plurality of pixels, and an electrical signal is used to control the light emission of the plurality of pixels for display. The polarizing layer 102 is located on the light-emitting side of the display layer 101. Due to its polarizing effect, it only allows light in a specific direction to pass through, and can effectively filter out the non-polarized light emitted by the display layer 101, thereby reducing glare and reflection, and improving the contrast and clarity of the display layer 101. A touch layer 103 is set on the side of the polarizing layer 102 away from the display layer 101 to improve the interactive performance of the display module, making the operation more intuitive and convenient, and improving the user experience.
[0041] In this embodiment, the polarizing layer 102 is disposed between the display layer 101 and the touch layer 103, which can enhance the visual effect of the display screen. The combination of the touch layer 103 and the polarizing layer 102 enables the display screen to accurately sense the user's touch operation while maintaining the quality of the display image.
[0042] Figure 3 FIG. 2 is a schematic diagram of the structure of a display module provided by another embodiment of the present application. Based on the above embodiments, optionally, Figure 3 As shown, the display layer 101 includes a transistor layer 1011 and a light-emitting device layer. Among them, the light-emitting device layer includes a first electrode 1012, a hole layer 1013, a light-emitting functional layer 1014, an electron layer 1015 and a second electrode 1016. The transistor layer 1011 includes a thin film transistor array, and the thin film transistor is used to control the display state of each pixel. Exemplarily, the light-emitting device is an organic electroluminescent diode. Exemplarily, the first electrode 1012 is an anode, and the anode has a higher working potential to inject holes. The hole layer 1013 is used to transport holes. The second electrode 1016 is a cathode, and the cathode has a lower working potential to inject electrons. The electron layer 1015 is used to transport electrons. When electrons and holes are recombined in the light-emitting functional layer 1014, the light-emitting device emits light. The material of the light-emitting functional layer 1014 includes an organic compound. Exemplarily, the light-emitting functional layer 1014 includes a first sublayer R, a second sublayer G and a third sublayer B. The light-emitting colors of the first sublayer R, the second sublayer G and the third sublayer B are different. For example, the first sublayer R emits red light, the second sublayer G emits green light, and the third sublayer B emits blue light. By combining the first sublayer R, the second sublayer G, and the third sublayer B, the display layer 101 can display a full-color image.
[0043] Figure 4FIG. 2 is a schematic diagram of the structure of a display module provided by another embodiment of the present application. Based on the above embodiments, optionally, Figure 4 As shown, the display layer 101 further includes an encapsulation layer 1017. The encapsulation layer 1017 includes one or more layers. The material of the encapsulation layer 1017 can be an inorganic material, an organic material, or a combination of the two. The encapsulation layer 1017 is used to seal and protect the electronic components and light-emitting materials inside the display layer 101, prevent water vapor, oxygen, dust and other pollutants from intruding, and extend the service life of the display layer 101.
[0044] Figure 5 FIG. 1 is a schematic diagram of a method for preparing a display module according to an embodiment of the present application, and the method is suitable for preparing a display module. Figure 5 As shown, the method includes:
[0045] S110, spraying a first liquid material on a light emitting surface and at least a portion of a side wall of a display substrate, wherein the first liquid material includes silicon dioxide.
[0046] Exemplarily, the silicon dioxide liquid is evenly sprayed onto the light emitting surface and at least part of the side wall of the display substrate to form a fluid coating. By adjusting the spraying speed, the thickness of the fluid coating can be controlled to meet different performance requirements. The evenly sprayed fluid coating helps to reduce the scattering and reflection of light and improve the display efficiency. In addition, silicon dioxide has good transparency and will not affect the light emitting effect of the display substrate.
[0047] S120, curing the first liquid material to form a first protective layer.
[0048] For example, the first liquid material may be cured by heating or irradiation (eg, ultraviolet irradiation) to obtain the first protective layer.
[0049] The technical solution of this embodiment is to spray a first liquid material on the light-emitting surface and at least part of the side wall of the display substrate, and then solidify the first liquid material to form a first protective layer. Such a preparation method, by first forming a fluid coating and then performing a solidification step, makes it easier to control the thickness of the protective layer, and the protective layer after solidification has higher flexibility. In addition, the first liquid material includes silicon dioxide, and the first protective layer prepared using silicon dioxide has good anti-fouling performance and impact resistance, reducing the risk of dirt and damage to the display substrate. The protective layer formed using silicon dioxide has good hydrophobicity and transparency, can better protect the display substrate from water vapor erosion, and does not affect the optical path of the display substrate. In summary, the technical solution provided in this embodiment can improve the anti-fouling performance of the display screen, extend the service life of the display screen, help to reduce the thickness of the display screen, improve the flexibility of the display screen, help to achieve the goal of thinning and folding the display device, and improve the display effect and operating performance.
[0050] Figure 6 FIG. 1 is a flow chart of a method for preparing a display module provided by another embodiment of the present application, and the method is applicable to preparing a display module. Based on the above embodiments, the present embodiment further expands step “S120, curing the first liquid material”, such as Figure 6 As shown, the method includes:
[0051] S121, the display substrate is left to stand for a preset time.
[0052] Specifically, during the curing process of the first liquid material, the display substrate is left to stand. The standing treatment allows the first liquid material (such as silicon dioxide liquid) sprayed on the display substrate to be evenly cured, avoiding defects such as cracks or bubbles. By leaving the display substrate to stand for a preset time, the quality consistency of different batches of products can be ensured.
[0053] S122, baking the first liquid material at high temperature.
[0054] Specifically, the first liquid material (such as a liquid containing silicon dioxide) sprayed on the display substrate is baked at high temperature to solidify it into a first protective layer. High temperature baking can accelerate the solidification process of the liquid material, so that it can be quickly transformed into a solid protective layer. The first protective layer formed after high temperature baking has better wear resistance. During the baking process, the adhesion between the protective layer and the substrate will be enhanced, reducing the risk of delamination or falling off. The cured protective layer can maintain its performance in a wide temperature range and adapt to different usage environments.
[0055] In this embodiment, by leaving the display substrate to stand for a preset time and then baking the first liquid material at a high temperature, the formed first protective layer is made more uniform and has better wear resistance, which is further beneficial to extending the service life of the display screen.
[0056] Figure 7 FIG. 1 is a schematic diagram of a method for preparing a display module according to another embodiment of the present application, and the method is suitable for preparing a display module. Figure 7 As shown, after forming the first protective layer, the method for preparing the display module further includes:
[0057] S210, spraying a second liquid material on a surface of the first protective layer facing away from the display substrate, where the second liquid material includes silicon dioxide.
[0058] Exemplarily, the silicon dioxide liquid is uniformly sprayed onto the surface of the first protective layer facing away from the display substrate.
[0059] S220, curing the second liquid material to form a second protective layer.
[0060] For example, the second liquid material may be cured by heating or irradiation (eg, ultraviolet irradiation) to obtain the second protective layer. The thickness of the second protective layer may be the same as or different from that of the first protective layer.
[0061] In this embodiment, the second liquid material is sprayed on the surface of the first protective layer away from the display substrate, and then the second liquid material is solidified to form the second protective layer, thereby further protecting the display substrate.
[0062] In some embodiments, preferably, the second protective layer includes multiple layers. Figure 8 FIG. 1 is a schematic diagram of a method for preparing a display module according to another embodiment of the present application, and the method is suitable for preparing a display module. Figure 8 As shown, after forming the first protective layer, the method for preparing the display module further includes:
[0063] S310, spraying a second liquid material multiple times on a surface of the first protective layer facing away from the display substrate.
[0064] S320, curing the second liquid material to form a second protective layer.
[0065] Exemplarily, the silica liquid is sprayed evenly onto the surface of the first protective layer facing away from the display substrate multiple times. After each spraying of the silica liquid, the second liquid material can be cured by heating or irradiation (such as ultraviolet irradiation) to obtain a multi-layer second protective layer.
[0066] In this embodiment, a plurality of second protective layers, for example, 5 to 10 layers of second protective layers, are prepared on the surface of the first protective layer away from the display substrate to further protect the display substrate.
[0067] Fig. 9 FIG. 1 is a schematic diagram of a method for preparing a display module according to another embodiment of the present application, and the method is suitable for preparing a display module. Fig. 9 As shown, before the step of spraying the second liquid material on the surface of the first protective layer away from the display substrate, the method for preparing the display module further includes:
[0068] S230, cooling the first protective layer.
[0069] Specifically, the display substrate is transferred from a high temperature environment to a low temperature environment, which may be room temperature or using a cooling device. The cooling rate may be controlled according to actual needs to avoid stress or cracks in the first protective layer due to excessive temperature changes. The first protective layer is cooled to a preset temperature, which may be room temperature or slightly higher than room temperature to ensure material stability.
[0070] In this embodiment, cooling the first protective layer is beneficial to improving the stability of the first protective layer and optimizing the subsequent process flow, which is beneficial to further improving the reliability and stability of the display module in long-term use.
[0071] In one embodiment, Fig. 9 As shown, preferably, after forming the second protective layer, the method for preparing the display module further includes:
[0072] S240, cooling the second protective layer.
[0073] Specifically, after the second protective layer is prepared, the second protective layer is cooled in a low temperature environment to a preset temperature, which may be room temperature or slightly higher than room temperature, to improve the stability of the second protective layer, thereby further improving the stability of the display module.
[0074] In one embodiment, Fig. 9 As shown, preferably, after the second protective layer is cooled, the method for preparing the display module further includes:
[0075] S250, cleaning the surface of the second protective layer away from the first protective layer.
[0076] For example, water or a cleaning agent can be used to clean the surface of the second protective layer away from the first protective layer to remove pollutants or residues on the surface of the second protective layer. The surface of the display module after cleaning is smoother, which helps to improve the display effect. The risk of failure of the display module after cleaning is reduced in subsequent processing (such as lamination, assembly, etc.), further improving the reliability of the display module.
[0077] Fig.10 FIG. 1 is a schematic diagram of a method for preparing a display module according to another embodiment of the present application, and the method is suitable for preparing a display module. Fig.10 As shown, before the step of spraying the first liquid material on the light emitting surface and at least a portion of the side wall of the display substrate, the method for preparing the display module further includes:
[0078] S130, mixing the silicon dioxide liquid and water according to a preset ratio to obtain a first liquid material.
[0079] Specifically, the silicon dioxide liquid and water are uniformly mixed in a preset ratio to prepare a first liquid material. The preset ratio can be adjusted according to actual production needs. The first liquid material obtained by mixing the silicon dioxide liquid and water has stronger fluidity and is easier to spray or apply.
[0080] Based on the above embodiments, preferably, before spraying the first liquid material on the light emitting surface and at least a portion of the side wall of the display substrate, the method for preparing the display module further includes preparing the display substrate. Fig.11 FIG. 1 is a schematic flow chart of a method for preparing a display substrate provided by another embodiment of the present application, and the method is suitable for preparing a display substrate. Fig.11 As shown, the method includes:
[0081] S410, providing a substrate.
[0082] For example, in a rigid display layer, the material of the substrate may include glass or silicon. In a flexible display layer, the material of the substrate may include flexible materials such as polyimide.
[0083] S420, sequentially preparing a transistor layer, a light-emitting device layer and a packaging layer on one side of the substrate to obtain a display layer.
[0084] Specifically, the transistor layer includes a semiconductor layer, a gate, a source, a drain and an insulating layer. For example, the material of the semiconductor layer includes a semiconductor material such as polysilicon or indium gallium zinc oxide. The materials of the gate, source and drain include metals or alloys such as molybdenum, tungsten and titanium. The material of the insulating layer includes silicon-containing oxides, silicon-containing nitrides or silicon-containing oxynitrides. The material of the light-emitting functional layer includes organic compounds. The material of the encapsulation layer can be an inorganic material, an organic material or a combination of the two.
[0085] By preparing a transistor layer and a light-emitting device layer on one side of the substrate, the display layer can display images and video content. By preparing an encapsulation layer, it is possible to prevent moisture and chemicals from corroding the internal structure.
[0086] S430, attaching a polarizing layer to a surface of one side of the display layer.
[0087] Specifically, a polarizing layer is attached to the side of the encapsulation layer that is away from the substrate. The polarizing layer is located on the light-emitting side of the display layer. Due to its polarization effect, it only allows light in a specific direction to pass through, and can effectively filter out non-polarized light emitted by the display layer, thereby reducing glare and reflection, and improving the contrast and clarity of the display layer.
[0088] S440, attaching a touch layer to the surface of the polarizing layer facing away from the display layer to obtain a display substrate.
[0089] Specifically, a touch layer is attached to the surface of the polarizing layer away from the display layer to obtain a display substrate with touch function. Users can interact with the display screen through fingers or touch pens, which improves the interactive performance of the display screen, makes the operation more intuitive and convenient, and improves the user experience.
[0090] Fig.12 FIG. 1 is a schematic diagram of a structure of a display device provided in an embodiment of the present application. Fig.12 As shown, an embodiment of the present application provides a display device 10, which includes the display module mentioned in any of the above embodiments, or a display module obtained by the method for preparing the display module mentioned in any of the above embodiments. The display device 10 has the beneficial effects of the display module mentioned in any of the above embodiments, and its technical principles and effects are similar, which will not be repeated here.
[0091] The display module can be applied to a display device 10, which can be, for example, a mobile terminal, a tablet computer, a computer monitor, a television, a wearable device, an information query machine, or other products or components.
[0092] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document is not limited here.
[0093] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.
Claims
1. A display module, characterized in that: include: Display substrate; At least one protective layer, the protective layer covers the light emitting surface and at least a portion of the side wall of the display substrate, and the material of the protective layer includes silicon dioxide.
2. The display module according to claim 1, characterized in that: The thickness of the protective layer is greater than or equal to 0.1 um and less than or equal to 0.4 um.
3. The display module according to claim 1 or 2, characterized in that: The at least one protective layer comprises a plurality of protective layers, and the plurality of protective layers are stacked on the light emitting surface and at least a portion of the side wall of the display substrate.
4. The display module according to claim 3, characterized in that: The display substrate includes a display layer, a polarizing layer and a touch layer, and the polarizing layer is located between the display layer and the touch layer.
5. A method for preparing a display module, characterized in that: include: Spraying a first liquid material on a light emitting surface and at least a portion of a side wall of a display substrate, wherein the first liquid material comprises silicon dioxide; The first liquid material is solidified to form a first protective layer.
6. The method for preparing a display module according to claim 5, characterized in that: The step of solidifying the first liquid material comprises: Allowing the display substrate to stand for a preset time; The first liquid material is baked at high temperature.
7. The method for preparing a display module according to claim 5, characterized in that: After forming the first protective layer, the method further includes: Spraying a second liquid material on a surface of the first protective layer away from the display substrate, wherein the second liquid material includes silicon dioxide; curing the second liquid material to form a second protective layer; Preferably, the second protective layer comprises multiple layers; Preferably, the second liquid material is sprayed multiple times on the surface of the first protective layer away from the display substrate; The second liquid material is solidified to form a second protective layer.
8. The method for preparing a display module according to claim 7, characterized in that: Before the step of spraying the second liquid material on the surface of the first protective layer away from the display substrate, the method further includes: performing a cooling process on the first protective layer; Preferably, after forming the second protective layer, the method further comprises: performing a cooling process on the second protective layer; Preferably, after cooling the second protective layer, the method further comprises: The surface of the second protective layer facing away from the first protective layer is cleaned.
9. The method for preparing a display module according to claim 5, characterized in that: Before the step of spraying the first liquid material on the light emitting surface and at least a portion of the side wall of the display substrate, the method further includes: The silicon dioxide liquid and water are mixed in a preset ratio to obtain the first liquid material. Preferably, before spraying the first liquid material on the light emitting surface and at least a portion of the side wall of the display substrate, the method further comprises: providing a substrate; On one side of the substrate, a transistor layer, a light-emitting device layer and a packaging layer are sequentially prepared to obtain a display layer; A polarizing layer is attached to a surface of one side of the display layer; A touch layer is attached to the surface of the polarizing layer away from the display layer to obtain the display substrate.
10. A display device, characterized in that: include: A display module as claimed in any one of claims 1 to 4, or a display module obtained by the method for preparing a display module as claimed in any one of claims 5 to 9.