Display screen, preparation method thereof and electronic equipment

Abstract

The invention relates to a display screen, a preparation method thereof and electronic equipment, and relates to the technical field of display. The display screen at least comprises a display panel, a polarization structure and a cover plate which are sequentially arranged in a stacked mode in the first direction. Wherein the polarizing structure comprises a polaroid and protective layers, and the protective layers are located on the two sides, oppositely arranged in the second direction, of the polaroid; the material of the protective layer comprises an inorganic waterproof material; the first direction is perpendicular to the second direction. According to the invention, a high screen-to-body ratio can be realized.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display screen, a method for preparing the same, and an electronic device. Background Art

[0002] With the rapid development of display technology, displays have become a core component of various electronic devices. To enhance user experience, high screen-to-body ratio designs have become a key development direction in the display field. However, existing display structural designs still have many limitations. Therefore, optimizing display structural design to achieve a higher screen-to-body ratio has become a pressing technical challenge in this field. Summary of the Invention

[0003] The embodiments of the present application provide a display screen, a method for manufacturing the same, and an electronic device, which can achieve a high screen-to-body ratio.

[0004] In a first aspect, the present application provides a display screen comprising at least a display panel, a polarizing structure, and a cover plate arranged in sequence along a first direction; wherein,

[0005] The polarizing structure includes a polarizer and a protective layer, wherein the protective layer is located on two sides of the polarizer that are opposite to each other in the second direction; the material of the protective layer includes an inorganic waterproof material; and the first direction is perpendicular to the second direction.

[0006] In a second aspect, the present application provides an electronic device comprising the display screen as described above.

[0007] In a third aspect, the present application provides a method for preparing a display screen, comprising:

[0008] Provide polarizers, display panels and cover plates;

[0009] forming protective layers on two sides of the polarizer that are opposite to each other in the second direction to form a polarizing structure;

[0010] The polarizing structure is disposed on one side of the display panel in a first direction; the first direction is perpendicular to the second direction;

[0011] The cover plate is formed on a side of the polarizing structure away from the display panel.

[0012] The above-mentioned display screen, its preparation method, and electronic device, the display screen at least includes a display panel, a polarizing structure, and a cover plate arranged in sequence along a first direction, wherein the polarizing structure includes a polarizer and a protective layer, and the protective layer is located on both sides of the polarizer arranged oppositely in the second direction. The material of the protective layer includes an inorganic waterproof material, and the first direction is perpendicular to the second direction. Since the polarizer is provided with protective layers on both sides arranged oppositely in the second direction, and the material of the protective layer is an inorganic waterproof material, the protective layer can effectively prevent environmental water and oxygen from invading the interior of the polarizer from the side, avoiding hydrolysis of the internal material of the polarizer due to water and oxygen erosion, thereby maintaining long-term stable polarization performance, improving the barrier performance of the display screen, and solving the problem that the polarizer is prone to fading in a high temperature and high humidity environment, resulting in poor display effect. Therefore, there is no need to apply waterproof glue around the display panel and the polarizer, thereby avoiding the secondary protection process of applying waterproof glue, thereby reducing the avoidance distance between the display screen and the edge of the cover plate, effectively reducing the black edge of the display screen, and improving the screen-to-body ratio of the display screen, which helps to improve the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. 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.

[0014] Figure 1 A schematic diagram of a top view of the structure of an electronic device;

[0015] Figure 2 A schematic diagram of a cross-sectional structure of an electronic device;

[0016] Figure 3 is a schematic diagram of the cross-sectional structure of another display screen;

[0017] Figure 4 is a schematic diagram of a cross-sectional structure of a display screen provided in one embodiment;

[0018] Figure 5 is a schematic cross-sectional structural diagram of a polarization structure in a display screen provided in one embodiment;

[0019] Figure 6 A schematic diagram of the chemical principle within a polarizer in a display screen provided in one embodiment;

[0020] Figure 7 is a schematic diagram of a cross-sectional structure of a display screen provided in another embodiment;

[0021] Figure 8is a schematic diagram of a cross-sectional structure of a display screen provided in yet another embodiment;

[0022] Figure 9 is a schematic diagram of a cross-sectional structure of a display screen provided in yet another embodiment;

[0023] Figure 10 Schematic diagram of a process for preparing a display screen provided in one embodiment;

[0024] Figure 11 A schematic flow chart of a method for preparing a display screen provided in another embodiment;

[0025] Figure 12 is a schematic top view of the structure of an electronic device provided in one embodiment;

[0026] Figure 13 Schematic diagram of the internal structure of an electronic device provided in one embodiment.

[0027] Description of reference numerals:

[0028] 11. Display panel; 12. Polarizing structure; 121. Polarizer; 122. Protective layer; 13. Cover plate; 1211. First adhesive layer; 1212. Phase delay layer; 1213. Second adhesive layer; 1214. Base layer; 1215. Polarizing functional layer; 12151. Polyvinyl alcohol; 12152. Iodine; 12153. Boric acid; 1216. Protective layer; 14. Optical adhesive layer; 15. Support layer; 16. Buffer layer; 20. Electronic device; 31. Memory; 311. Operating system; 312. Communication module; 313. Global positioning system module; 32. Processing circuit; 33. Peripheral device interface; 36. Input / output subsystem; 361. User-pressed button; 39. Signal line. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0031] It will be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it can be directly on or connected to the other element or layer or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element or layer, there are no intervening elements or layers present. It will also be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application, and, similarly, a first aspect, concept or object discussed below could be termed a second aspect, concept or object without departing from the teachings of the present application. For example, a first dopant type can be a second dopant type, and, similarly, a second dopant type can be a first dopant type, where the first and second dopant types are different dopant types, e.g., the first dopant type can be P-type and the second dopant type can be N-type, or the first dopant type can be N-type and the second dopant type can be P-type.

[0032] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and / or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other direction (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0033] The singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", or the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0034] Embodiments of the invention are described herein with reference to cross-sectional views which are schematic illustrations of idealized embodiments (and intermediate structures) of the invention, such that variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances are anticipated. Accordingly, embodiments of the invention should not be limited to the specific shapes of the regions shown herein, but rather include deviations in shapes due to, for example, manufacturing techniques. For example, an implanted region shown as a rectangle typically has rounded or curved features and / or an implant concentration gradient at its edges rather than a binary change from an implanted region to a non-implanted region. Similarly, a buried region formed by implantation may result in some implantation in the region between the buried region and the surface through which the implantation occurs. Accordingly, the regions shown in the figures are schematic in nature, their shapes do not represent the actual shape of the region of the device, and do not limit the scope of the invention.

[0035] An embodiment of the present application provides an electronic device including a display screen. The display screen may be a rigid display screen or a flexible display screen. For example, the display screen may be an OLED (Organic Light Emitting Diodes) display screen, including but not limited to curved screens, folding screens, waterfall screens, surround screens, and the like. The electronic device may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, an e-reader, a handheld computer, an electronic display screen, a notebook computer, a netbook, and a personal digital assistant (PDA), an augmented reality (AR)\virtual reality (VR) device, a media player, a watch, a necklace, glasses, headphones, and other devices with a display screen. The embodiment of the present application is described using a mobile phone as an example.

[0036] As mentioned in the background art, how to improve the screen ratio of the display screen is one of the technical problems that need to be solved urgently. Figure 1 As shown, Figure 1 The light emitting area of ​​the middle display area AA (Active Area) is S AA The area of ​​the non-display area, such as the black border surrounding the display area, is S 黑边 , then the screen ratio of the display is: screen ratio = S AA / S 黑边* 100%.

[0037] Related technologies, such as curved screens, folding screens, waterfall screens, and surround screens, increase the screen-to-body ratio of displays by changing the fitting form of the displays. However, they cannot solve the problem of large black borders on the displays. Therefore, how to reduce the black borders on the displays is the key to improving the screen-to-body ratio of displays.

[0038] by Figure 1The mobile phone display screen shown is taken as an example, and the display screen is cut along B1-B2. Figure 1 The schematic diagram of the lower black border of the whole machine is shown in Figure 2 The display screen can be disassembled into two parts: the lower black border of the display D=a+b, wherein a is the frame of the display screen, and b is the dispensing width of the protective glue of the display screen. Reducing the lower black border of the mobile phone means that the design value of a and b needs to be reduced. Due to the limitation of the precision of the semiconductor process of the display screen, it is difficult to further compress the value of a, and therefore, how to effectively reduce the dispensing width b of the display screen is the key to reducing the black border of the whole machine.

[0039] The mobile phone display screen shown in Figure 1 is taken as an example, Figure 3 is a schematic diagram of the cross-sectional structure of the black border thereof. As shown in Figure 3 , a polarizer (POL) is arranged in the display screen. Since the polarizer is prone to discoloration in a high-temperature and high-humidity environment, resulting in appearance defects, for tropical regions, a layer of protective glue needs to be coated on the side of the mobile phone screen to protect the display screen and improve its service life. The common protective glue is a silicone glue system. Due to the coating process requirement of the protective glue, the dispensing width b has a minimum value, that is, it is required to be not less than 0.4 mm in the industry, and it is impossible to further reduce the black border of the display screen.

[0040] To this end, the embodiments of the present application provide a display screen, a preparation method of the display screen and an electronic device, which can prevent water vapor from entering the polarizer through the protective layer, do not need to arrange the protective glue, can effectively reduce the black border of the display screen, and thus improve the screen ratio of the display screen.

[0041] As shown in Figure 4 , in some exemplary embodiments, a display screen is provided, which at least includes a display panel 11, a polarizing structure 12 and a cover plate 13 arranged in sequence along a first direction.

[0042] The polarizing structure 12 is located between the display panel 11 and the cover plate 13. The polarizing structure 12 includes a polarizer 121 and a protective layer 122. The polarizer 121 can allow light waves in a specific direction to pass through and block light in other directions, thereby forming polarized light. Taking an OLED display screen as an example, the polarizer 121 can be used to prevent external natural light from entering the display panel 11 and reflecting, thereby improving the display effect. The polarizer 121 can adopt any suitable structure and material according to requirements, which is not limited here.

[0043] The protective layer 122 is located on both sides of the polarizer 121 in the second direction. The first direction is perpendicular to the second direction. In the embodiment of the present application, the first direction is the Y-axis direction, and the second direction is the X-axis direction. That is, the protective layer 122 is located on both sides or both ends of the polarizer 121 in the X-axis direction. The protective layer 122 has high barrier properties and can block the penetration of water vapor and oxygen. In the embodiment of the present application, the protective layer 122 can prevent water vapor, oxygen and the like in the environment from entering the inside of the polarizer 121, avoid the internal material of the polarizer 121 from hydrolysis due to water and oxygen corrosion, and thus maintain long-term stable polarization performance.

[0044] The material of the protective layer 122 includes inorganic waterproof material. The protective layer 122 can include any suitable inorganic waterproof material. The protective layer 122 can include one or more inorganic waterproof materials. The inorganic waterproof material is intended to prevent the environment from water and oxygen from entering the polarizer 121, and to protect the polarizer 121. On this basis, the demand for smaller size can be considered to reduce the black border and improve the screen ratio.

[0045] The cover plate 13 can improve the strength of the display screen and resist scratching, impact, etc. The cover plate 13 can also play a role in isolating the environment, such as preventing water and oxygen, dust, etc. from entering the inside of the display screen. The cover plate 13 can have high light transmittance to ensure display clarity. The cover plate 13 includes but is not limited to a glass cover plate 13 (Cover Glass, CG).

[0046] The display panel 11 (Panle, PNL) is used to provide display function. For example, the display panel 11 can include a flexible substrate, a light emitting layer, a driving circuit, an encapsulation structure, and can also include a touch layer, etc. The specific configuration can be set according to the functional requirements of the display screen. The material of the flexible substrate can use any suitable flexible material, including but not limited to polyimide (Polyimide, PI). The light emitting layer can include a light emitting device, such as an organic light emitting diode (OLED), to provide light emitting function. The driving circuit can include a thin film transistor (Thin Film Transistor, TFT) to drive the light emitting device to emit light. The encapsulation structure can use thin film encapsulation (Thin Film TFE).

[0047] The display screen provided in the above embodiment includes at least a display panel 11, a polarizing structure 12, and a cover plate 13 stacked in sequence along a first direction. The polarizing structure 12 includes a polarizer 121 and a protective layer 122. The protective layer 122 is located on opposite sides of the polarizer 121 along a second direction. The protective layer 122 is made of an inorganic waterproof material, and the first direction is perpendicular to the second direction. Since the polarizer 121 is provided with protective layers 122 on both sides opposite to each other in the second direction, and the material of the protective layer 122 is an inorganic waterproof material, the protective layer 122 can effectively prevent environmental water and oxygen from invading the interior of the polarizer 121 from the side, and avoid the internal material of the polarizer 121 from being hydrolyzed due to water and oxygen erosion, thereby maintaining long-term stable polarization performance, improving the barrier performance of the display screen, and solving the problem that the polarizer 121 is prone to fading and resulting in poor display effect in a high temperature and high humidity environment. Therefore, there is no need to apply waterproof glue around the display panel 11 and the polarizer 121, thereby avoiding the secondary protection process of applying waterproof glue, and further reducing the avoidance distance between the display screen and the edge of the cover plate 13, effectively reducing the black edge of the display screen, and improving the screen-to-body ratio of the display screen.

[0048] Please continue reading Figure 4 In some exemplary embodiments, the dimension of the protective layer 122 in the second direction is less than 400 micrometers. That is, the dimension of the protective layer 122 in the X-axis direction is less than 400 micrometers.

[0049] It should be noted that the dimension of the protective layer 122 in the second direction can be understood as, in the second direction, the dimension of the protective layer 122 on either side of the polarizer 121 is less than or equal to 400 microns. For example, in the X-axis direction, the dimension of the protective layer 122 on the left or right side of the polarizer 121 is less than or equal to 400 microns.

[0050] For example, the size of the protective layer 122 in the second direction is 400 microns, 350 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 90 microns, 80 microns, 70 microns, 60 microns, 50 microns, 40 microns, 30 microns, 20 microns, 10 microns, 5 microns, 1 micron, or any other value smaller than 400 microns, which is not limited here.

[0051] It can be understood that the protective layer 122 is made of inorganic waterproof material, not the waterproof glue such as silicone glue in the related art. Therefore, the display screen in the embodiment of the present application is not limited to the glue coating process, and other processes such as coating deposition process can be used. Therefore, the minimum size of the protective layer 122 in the second direction can be less than 400 microns required by the glue coating process. In this way, compared with the method of using the glue coating process in the related art to apply waterproof glue around the display panel 11 and the polarizer 121 to prevent water and oxygen from invading the polarizer 121, the present application uses an inorganic waterproof material to form a protective layer 122 on the side of the polarizer 121, which can effectively prevent water and oxygen from invading the polarizer 121, and is not limited by the process size of the glue coating process, so that the black edge size of the display screen is less than or equal to 400 microns, effectively reducing the black edge and improving the screen-to-body ratio of the display screen.

[0052] Please continue reading Figure 4 In some exemplary embodiments, the dimension of the protective layer 122 in the second direction is less than or equal to 10 micrometers. That is, the dimension of the protective layer 122 in the X-axis direction is less than or equal to 10 micrometers.

[0053] For example, the size of the protective layer 122 in the second direction is 10 microns, 9 microns, 8 microns, 7 microns, 6 microns, 5 microns, 4 microns, 3 microns, 2 microns or 1 micron. The size of the protective layer 122 in the second direction can also be any value less than 10 microns, which is not limited here.

[0054] It should be noted that the size of the protective layer 122 in the second direction can be set according to the waterproof performance of the inorganic waterproof material, which is intended to prevent water and oxygen from invading the polarizer 121. Specifically, the appropriate size can be set according to the inorganic waterproof material and its barrier performance, and no further restrictions are made here.

[0055] In the display screen provided by the above embodiment, the size of the protective layer 122 in the second direction is less than or equal to 10 microns, which is smaller than the size that can be distinguished by the naked eye. In this way, the size of the protective layer 122 in the second direction can be ignored, which significantly improves the screen-to-body ratio and thus improves the display effect.

[0056] Please continue reading Figure 4 In some exemplary embodiments, the inorganic waterproof material includes at least one of silicon oxide (SiO) and silicon nitride (SiN). For example, the inorganic waterproof material includes silicon oxide, that is, the protective layer 122 includes a silicon oxide layer. For another example, the inorganic waterproof material includes silicon nitride, that is, the protective layer 122 includes a silicon nitride layer. For another example, the inorganic waterproof material includes silicon oxide and silicon nitride, that is, the protective layer 122 may include at least one silicon oxide layer and at least one silicon nitride layer. The number of silicon oxide layers and silicon nitride layers can be set according to the barrier properties of the protective layer 122 and the requirement of a high screen-to-body ratio of the display screen, and is not excessively limited here.

[0057] In applications, inorganic waterproof materials, such as at least one of silicon oxide and silicon nitride, can be deposited to form a dense film whose molecular gaps are much smaller than the diameter of water molecules, thereby physically blocking water vapor penetration. Thus, by using inorganic waterproof materials to form protective layers 122 on opposite sides of the polarizer 121 in the second direction, water and oxygen can be effectively prevented from invading the polarizer 121. Furthermore, there is no need to apply waterproof glue around the polarizer 121 and the display panel 11, thus eliminating the need for a glue coating process and reducing the clearance distance between the display screen and the edge of the cover plate 13. This effectively reduces the black border of the display screen and increases the screen-to-body ratio, thereby improving the display effect.

[0058] In some exemplary embodiments, Figure 5 As shown, the polarizer 121 includes a first adhesive layer 1211, a phase retardation layer 1212, a second adhesive layer 1213, a base layer 1214, a polarizing function layer 1215 and a protective layer 1216 which are sequentially stacked along a first direction.

[0059] The protective layer 122 is located on opposite sides of the first adhesive layer 1211, the phase retarder layer 1212, the second adhesive layer 1213, the base layer 1214, the polarizing layer 1215, and the protective layer 1216, which are arranged in the second direction. That is, the protective layer 122 is located on opposite sides of the first adhesive layer 1211, the phase retarder layer 1212, the second adhesive layer 1213, the base layer 1214, the polarizing layer 1215, and the protective layer 1216, which are arranged in the X-axis direction. In this way, the protective layer 122 can provide integrated protection for both sides of the polarizer 121, achieving a comprehensive protection effect.

[0060] Among them, the protective layer 1216 is arranged close to the cover plate 13 relative to the polarizing function layer 1215. The protective layer 1216 is located between the cover plate 13 and the polarizing function layer 1215. The protective layer 1216 is used to block external water and oxygen. The protective layer 1216 can prevent external water and oxygen from invading the polarizing function layer 1215 from the side of the polarizing function layer 1215 away from the base layer 1214. The protective layer 1216 can also improve the hardness of the polarizer 121. The material of the protective layer 1216 includes but is not limited to hardened triacetyl cellulose (Hard-Coated Triacetyl Cellulose, HC-TAC). For example, the protective layer 1216 may be an HC-TAC layer.

[0061] The polarizing functional layer 1215 is located on the side of the protective layer 1216 away from the cover plate 13, and is located between the protective layer 1216 and the base layer 1214. The polarizing functional layer 1215 can also be called a linear polarization conversion layer, which mainly converts natural light into linear polarized light. The polarizing functional layer 1215 can complex iodine ions to make the polarizer 121 as a whole darker, ensuring the integrated black effect of the display screen, and has the characteristics of easy moisture absorption and expansion. Long-term exposure to high temperature and high humidity environments may cause iodine loss. In some exemplary embodiments, the material of the polarizing functional layer 1215 includes but is not limited to polyvinyl alcohol (PVA). For example, the polarizing functional layer 1215 may be a PVA layer. Among them, the PVA layer may include polyvinyl alcohol 12151, iodine (Iodine) 12152 and boric acid (Boric Acid) 12153.

[0062] The base layer 1214 is located on the side of the polarizing layer 1215 away from the protective layer 1216 and between the polarizing layer 1215 and the first adhesive layer 1211. The base layer 1214 provides support. The material of the base layer 1214 includes, but is not limited to, triacetyl cellulose. For example, the base layer 1214 can be a TAC layer.

[0063] The first adhesive layer 1211 is located on the side of the base layer 1214 away from the polarizing layer 1215 and between the base layer 1214 and the phase retarder layer 1212. The first adhesive layer 1211 is used to bond the base layer 1214 to the phase retarder layer 1212. The material of the first adhesive layer 1211 includes, but is not limited to, a pressure sensitive adhesive (PSA). For example, the first adhesive layer 1211 can be a PSA layer.

[0064] The phase retarder layer 1212 (retarder) is located on the side of the first adhesive layer 1211 away from the base layer 1214, and is located between the first adhesive layer 1211 and the second adhesive layer 1213. The phase retarder layer 1212 is an optical coating that changes the phase of linearly polarized light. It can convert the linearly polarized light output by the polarization functional layer 1215 into circularly polarized light (left-handed or right-handed). This can be used in OLED displays to suppress light reflected from metal electrodes. For example, the phase retarder layer 1212 may include a quarter-wave retarder (wave plate), which can be understood as a 1 / 4 wavelength optical layer.

[0065] The second adhesive layer 1213 is located on a side of the phase retarder layer 1212 away from the first adhesive layer 1211 and between the phase retarder layer 1212 and the display panel 11. The second adhesive layer 1213 can be used to bond the phase retarder layer 1212 to the display panel 11. The material of the second adhesive layer 1213 includes, but is not limited to, a pressure-sensitive adhesive. For example, the second adhesive layer 1213 can be a PSA layer.

[0066] It should be noted that the above is only an exemplary description of the polarizer 121 . In actual applications, the polarizer 121 may also be made of other suitable materials and structures, which are not limited here.

[0067] It is understood that iodine and polyiodide ions (such as 、 、 There is a chemical balance inside PVA, and its chemical principle is as follows Figure 6 Shown, including and The conversion between and conversion between, and and The polarizer 121 is prone to fading and failure in high temperature and high humidity environments mainly because water vapor enters from the sidewall of the PVA layer, causing the PVA to hydrolyze and iodine ions to be lost. At the same time, the iodine ions decompose in the high temperature and high humidity environment.

[0068] The PVA layer in the polarizer 121 provides an environment for iodine molecules or polyiodide ions to attach and align, thereby achieving the polarization function. PVA has a hydrophilic polymer chain structure. Under high temperature conditions, the chemical balance between iodine ions and the polyiodide ions they form will shift, such as Figure 6 As shown, the interior of PVA includes but is not limited to and conversion between, and and In a high humidity environment, a large number of water vapor molecules will enter the PVA layer. The hydroxyl groups (-OH) in the water molecules will attack the easily hydrolyzed sites such as the ester bonds on the PVA molecular chain, triggering a hydrolysis reaction. This will cause the PVA molecular chain to break and the structure to be destroyed. The destruction of the PVA structure will make it impossible to stably maintain the orderly arrangement of iodine molecules or polyiodide ions, thereby affecting the polarization function of the polarizer 121 on light, resulting in a decrease in polarization performance.

[0069] After PVA is hydrolyzed, the iodide ions I originally bound to or attached to PVA - The binding force of iodide ion I - It is easier to detach from the PVA layer. Water vapor in a high-humidity environment can dissolve some iodine ions. As the water vapor flows through the PVA layer, the dissolved iodine ions are gradually carried out of the PVA layer, causing iodine ion loss. Iodine ions are an important substance in the polarizer 121 to achieve the polarization function. When iodine ions are lost, the effective substances involved in forming the polarization function are reduced, resulting in a decrease in the polarization degree of the polarizer 121. The color display and other performance will also be affected, and eventually fading may occur.

[0070] In a high temperature environment, the chemical equilibrium between iodine ions and polyiodide ions formed by the iodine ions will shift, as shown in Figure 6 The PVA layer includes, but is not limited to conversion between and conversion between A temperature rise will cause the equilibrium to shift towards the generation of iodine monomer (I2). The generated iodine monomer has a certain volatility and will gradually volatilize from the PVA layer at high temperatures. At the same time, the iodine monomer can also react with other substances in the surrounding environment, further reducing the content of effective iodine components in the polarizer 121. The decomposition of iodine ions and the volatilization and reaction of iodine monomer reduce the key components that maintain the polarizing performance of the polarizer 121, resulting in deterioration of the optical performance of the polarizer 121 and the appearance of discoloration and other failure phenomena.

[0071] High temperature and high humidity often exist at the same time and promote each other. High temperature accelerates the hydrolysis rate of PVA and the decomposition reaction of iodine ions, while a high humidity environment not only provides conditions for PVA hydrolysis, but also accelerates the loss process of iodine ions. This synergistic effect causes the polarizer 121 to quickly fail in a high temperature and high humidity environment, exhibiting phenomena such as a sharp decline in polarizing performance, discoloration, and the like.

[0072] Optionally, the polarizer 121 can include a first PSA layer, a retarder layer, a second PSA layer, a TAC layer, a PVA layer, and an HC-TAC layer stacked in the first direction in sequence, and the protective layer 122 can be located on both sides of the first PSA layer, the retarder layer, the second PSA layer, the TAC layer, the PVA layer, and the HC-TAC layer in the second direction. The thickness of the polarizer 121 and the protective layer 122 in the first direction is about 60 microns, respectively.

[0073] In the display screen provided by the above embodiment, the polarizer 121 includes a first adhesive layer 1211, a phase retardation layer 1212, a second adhesive layer 1213, a base layer 1214, a polarizing function layer 1215, and a protective layer 1216 stacked in sequence along a first direction; the protective layer 1216 is arranged close to the cover plate 13 relative to the polarizing function layer 1215, and the protective layer 122 is located on both sides of the first adhesive layer 1211, the phase retardation layer 1212, the second adhesive layer 1213, the base layer 1214, the polarizing function layer 1215, and the protective layer 1216 that are arranged opposite to each other in the second direction. In this way, the protective layer 122 can block It prevents water vapor from invading the interior from the side of the polarizer 121, and the protective layer 1216 in the polarizer 121, such as the HC-TAC layer, can also prevent water vapor from invading the polarizer 121, thereby avoiding high temperature and high humidity causing hydrolysis of PVA, thereby causing problems such as decreased polarization performance and fading, and improving the waterproof performance of the display. Therefore, there is no need to apply waterproof glue on the sides of the display panel 11 and the polarizer 121, thus avoiding the glue coating process and being not limited by the requirements of the glue coating process, reducing the avoidance distance between the display screen and the edge of the cover plate 13, effectively reducing the black edge of the display screen, and improving the screen-to-body ratio of the display screen, thereby improving the display effect.

[0074] like Figure 7 As shown, in some exemplary embodiments, the cover plate 13 is aligned with the end portion of the polarizing structure 12 along the first direction.

[0075] The cover plate 13 may include a first end and a second end disposed oppositely along the second direction (i.e., the X-axis). The ends of the cover plate 13 include the first end and the second end of the cover plate 13. The polarizing structure 12 may include a third end and a fourth end disposed oppositely along the second direction (i.e., the X-axis). The ends of the polarizing structure 12 include the third end and the fourth end of the polarizing structure 12.

[0076] The alignment of the cover plate 13 and the end of the polarizing structure 12 along the first direction can be understood as the alignment of the first end of the cover plate 13 and the third end of the polarizing structure 12 along the first direction (i.e., the Y axis), and / or the alignment of the second end of the cover plate 13 and the fourth end of the polarizing structure 12 along the first direction (i.e., the Y axis). The alignment can be understood as completely aligned or roughly aligned. Figure 7 Taking the display screen shown as an example, the left end of the cover plate 13 may be aligned with the left end of the polarizing structure 12 , and / or the right end of the cover plate 13 may be aligned with the right end of the polarizing structure 12 .

[0077] In the display screen in the embodiment of the present application, the protective layer 122 is directly arranged on both sides of the polarizer 121, and the material used for the protective layer 122 is an inorganic waterproof material. The size of the protective layer 122 can be very small, and there is no need to apply waterproof glue on the sides of the polarizer 121 and the display panel 11. Therefore, the cover plate 13 and the end of the polarizer 121 can be aligned and arranged without outward expansion, which reduces the size requirement of the cover plate 13 and is conducive to the high screen-to-body ratio design of the display screen.

[0078] like Figure 4 、 Figure 8 and Figure 9 As shown, in some exemplary embodiments, the cover plate 13 extends outwardly relative to the polarizing structure 12 along the second direction by a preset first dimension. Along the first direction, the orthographic projection of the cover plate 13 toward the display panel 11 can cover the orthographic projection of the polarizing structure 12 toward the display panel 11. When the first dimension is greater than 0, the orthographic projection of the polarizing structure 12 toward the display panel 11 falls within the orthographic projection of the cover plate 13 toward the display panel 11.

[0079] The minimum value of the preset first dimension is less than or equal to 0.4 mm. For example, the minimum value of the preset first dimension can be 0.4 mm, 0.35 mm, 0.3 mm, 0.25 mm, 0.2 mm, 0.15 mm, 0.1 mm, 0.05 mm, 0.01 mm, or 0, or can be other values ​​less than or equal to 0.4 mm, which are not limited in detail herein.

[0080] Based on the above, in the embodiment of the present application, the dimension of the protective layer 122 in the second direction may be less than 400 microns, or 0.4 mm. Therefore, the minimum dimension of the cover plate 13 extending outward relative to the polarizing structure 12 along the second direction may be less than or equal to 0.4 mm.

[0081] It can be understood that in the display screen provided in the embodiment of the present application, the protective layer 122 is used to prevent water vapor from invading the polarizer 121. The material of the protective layer 122 is an inorganic waterproof material, and there is no need to apply waterproof glue on the sides of the polarizer 121 and the display panel 11. Therefore, the size of the protective layer 122 in the second direction is not limited by the glue coating process. The size of the protective layer 122 in the second direction can be less than 0.4 mm. Accordingly, the cover plate 13 does not have to expand outward by 0.4 mm relative to the polarizing structure 12 along the second direction to support the waterproof glue. Therefore, the minimum value of the outward size of the cover plate 13 relative to the polarizing structure 12 along the second direction can be less than 0.4 mm, which reduces the size requirement for the cover plate 13 and is conducive to the high screen-to-body ratio design of the display screen.

[0082] Please continue reading Figure 4 、 Figures 7 to 9In some exemplary embodiments, the orthographic projection of the display panel 11 on a preset plane covers the orthographic projection of the polarizer 121 on the preset plane. The preset plane is the surface of the display panel 11 close to the polarizing structure 12. In other words, the orthographic projection of the polarizing structure 12 on the preset plane falls into the orthographic projection of the display panel 11 on the preset plane. That is, the orthographic projection of the display panel 11 toward the cover plate 13 can cover the orthographic projection of the polarizing structure 12 toward the cover plate 13; in other words, the orthographic projection of the polarizing structure 12 toward the cover plate 13 falls into the orthographic projection of the display panel 11 toward the cover plate 13. In this way, the edge of the polarizer 121 can be prevented from being exposed outside the display area, the display interference caused by edge light scattering or reflection can be reduced, and the integrity and consistency of the displayed image can be ensured.

[0083] Please continue reading Figure 4 、 Figure 7 and Figure 8 In some exemplary embodiments, the polarizer 121 is aligned with an end portion of the display panel 11 along a first direction.

[0084] The polarizer 121 may include a fifth end and a sixth end disposed oppositely along the second direction (i.e., the X-axis). The ends of the polarizer 121 include the fifth and sixth ends of the cover plate 13. The display panel 11 may include a seventh and eighth end disposed oppositely along the second direction (i.e., the X-axis). The ends of the display panel 11 include the seventh and eighth ends of the polarizing structure 12.

[0085] The polarizer 121 and the end of the display panel 11 are aligned along the first direction, which can be understood as the fifth end of the polarizer 121 and the seventh end of the display panel 11 are aligned along the first direction (i.e., the Y axis), and / or the seventh end of the polarizer 121 and the eighth end of the display panel 11 are aligned along the first direction (i.e., the Y axis). The alignment can be understood as completely aligned or approximately aligned. Figure 4 Taking the display screen shown as an example, the left end of the polarizer 121 can be aligned with the left end of the display panel 11, and / or the right end of the polarizer 121 can be aligned with the right end of the display panel 11.

[0086] The display screen provided in the above embodiment, by aligning the end of the polarizer 121 and the display panel 11 along the first direction, can effectively avoid edge light leakage, waste of effective display area and appearance defects caused by the lateral misalignment between the two, thereby ensuring the stability of the display effect and the regularity of the product appearance.

[0087] like Figure 9As shown, in some exemplary embodiments, the polarizer 121 is retracted relative to the display panel 11 along the second direction by a preset second dimension. Along the first direction, the orthographic projection of the polarizer 121 toward the cover plate 13 can fall within the orthographic projection of the display panel 11 toward the cover plate 13. When the second dimension is greater than 0, the orthographic projection of the display panel 11 toward the cover plate 13 can cover the orthographic projection of the polarizer 121 toward the cover plate 13.

[0088] The second dimension is preset to be larger than the dimension of the protective layer 122 in the second direction. Optionally, the second dimension is in the range of 0.1 mm to 0.2 mm. For example, the second dimension may be 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, or 0.2 mm. The second dimension may also be other values ​​between 0.1 mm and 0.2 mm, and is not limited in detail herein.

[0089] The display screen provided in the above embodiment has a preset second size by retracting the polarizer 121 inward along the second direction relative to the display panel 11. This can avoid squeezing and abrasion between the edge of the polarizer 121 and the external structure, while reducing edge display abnormalities that may be caused by the polarizer 121 covering more than the effective area of ​​the panel, thereby ensuring product assembly adaptability and display stability.

[0090] In some exemplary embodiments, the orthographic projection of the display panel 11 on a preset plane may cover the orthographic projection of the polarizing structure 12 on the preset plane. Optionally, the polarizing structure 12 may be aligned with the end of the display panel 11 along a first direction. Optionally, the polarizing structure 12 may be retracted relative to the display panel 11 along a second direction by a preset second dimension. Optionally, the polarizer 121 may be retracted relative to the display panel 11 along a second direction by a preset second dimension, and the orthographic projections of the protective layer 122 and the display panel 11 on the preset planes may overlap. In this way, the edge of the polarizer 121 can be prevented from being exposed outside the display area, display interference caused by edge light scattering or reflection can be reduced, and the integrity and consistency of the displayed image can be ensured.

[0091] It can be understood that the size of the protective layer 122 in the second direction can be very small, such as not exceeding 10 microns, which is almost negligible. In this regard, the relative positional relationship between the polarizer 121 and other film layer structures can also be understood as the relative positional relationship between the polarizing structure 12 and other film layer structures, and no further limitations are made here.

[0092] Please continue reading Figures 7 to 9In some example embodiments, the display screen further comprises an optical adhesive layer 14. The optical adhesive layer 14 is located between the cover plate 13 and the polarizing structure 12. The optical adhesive layer 14 can be used to bond the cover plate 13 and the polarizing structure 12. The material of the optical adhesive layer 14 includes but is not limited to Optical Clear Adhesive (OCA). Optionally, the optical adhesive layer 14 can be aligned with the end of the cover plate 13 in the first direction. The display screen can bond the cover plate 13 and the polarizing structure 12 through the optical adhesive layer 14, which can improve the optical performance of the display screen, enhance the mechanical stability, and also optimize the production process and appearance.

[0093] Please continue to refer to Figures 7 to 9 In some example embodiments, the display screen further comprises a support layer 15 and a buffer layer 16. The support layer 15 is located on the side of the display panel 11 away from the polarizing structure 12. The support layer 15 is located between the display panel 11 and the buffer layer 16. The support layer 15 is used to improve the strength of the display panel 11. The support layer 15 can include a U-film (back film). Optionally, the support layer 15 can be aligned with the end of the polarizing structure 12 in the first direction. The display screen can stably support the display panel 11 through the support layer 15, maintain its structural stability, and protect the key components during the production process to avoid the impact of film tearing and other operations on the yield and quality of the display panel 11.

[0094] The buffer layer 16 is located on the side of the support layer 15 away from the display panel 11. The buffer layer 16 can prevent impact damage to the back of the display screen and also has a heat dissipation effect, which can avoid the impact of high temperature on the performance and service life of the display panel 11. The buffer layer 16 can include a SCF (Super Cooling Film, heat dissipation film) layer. The material of the buffer layer 16 includes but is not limited to mesh adhesive, foam, graphite sheet, copper foil, etc. Optionally, the buffer layer 16 is recessed by a preset third size in the second direction relative to the support layer 15, and the third size can be greater than or equal to 0. The display screen can effectively dissipate the heat generated by the display panel 11 through the buffer layer 16, and also has the functions of absorbing impact and electromagnetic shielding, which can improve the performance and service life of the display panel 11.

[0095] In some example embodiments, as shown in Figures 7 to 9 A display screen is provided, which comprises, in sequence along a first direction, a buffer layer 16, a support layer 15, a display panel 11, a polarizing structure 12, an optical adhesive layer 14, and a cover plate 13. The buffer layer 16 includes a SCF layer, the support layer 15 includes a U-film layer, the display panel 11 includes a PNL, the optical adhesive layer 14 includes an OCA layer, and the cover plate 13 includes a glass cover plate 13.

[0096] The polarizing structure 12 includes a polarizer 121 (POL) and a protective layer 122. The polarizer 121 includes a first adhesive layer 1211, a phase retarder layer 1212, a second adhesive layer 1213, a base layer 1214, a polarizing layer 1215, and a protective layer 1216, which are sequentially stacked along a first direction. The first adhesive layer 1211 includes a first PSA layer, the phase retarder layer 1212 may be a retarder layer, the second adhesive layer 1213 includes a second PSA layer, the base layer 1214 includes a TAC layer, the polarizing layer 1215 includes a PVAC layer, and the protective layer 1216 includes an HC-TAC layer.

[0097] Protective layer 122 includes the first PSA layer, the retarder layer, the second PSA layer, the TAC layer, the PVA layer, and the HC-TAC layer on opposite sides of the second direction. Protective layer 122 includes a silicon oxide layer and / or a silicon nitride layer. The size of protective layer 122 in the second direction does not exceed 10 microns.

[0098] For example, Figure 8 As shown, the ends of the OCA layer, polarizer 121, display panel 11, and U-film layer can be aligned along a first direction, the cover plate 13 is extended outward relative to the polarizer 121 by a preset dimension, and the SCF layer is retracted inward relative to the polarizer 121 by a preset dimension. The extended and retracted dimensions can be set as required and are not limited here. It should be noted that the various figures provided in the embodiments of this application are for illustrative purposes only and do not represent actual dimensions.

[0099] The display screen provided in the above embodiment improves the waterproof performance of the polarizing structure 12 by providing a protective layer 122 with a water and oxygen barrier function on the side of the polarizer 121, avoids the secondary protection process of applying waterproof glue around the display screen, and reduces the avoidance distance between the display screen and the edge of the cover plate 13, thereby effectively reducing the black edge of the display screen, increasing the screen-to-body ratio of the display screen, and further improving the display effect.

[0100] It is understood that in a display, the film layer on the side of the polarizing structure away from the cover plate can be cast using LIPO (Liquid Injection Overmolding) glue technology. This provides protection for the side of the polarizer away from the cover plate, i.e., the lower side, preventing water and oxygen from invading the polarizer. Furthermore, the protective layer 122 prevents water and oxygen from invading the polarizer from both sides in the X-axis direction, i.e., the left and right sides. The HC-TAC layer prevents water and oxygen from invading the polarizer from the side away from the display panel, i.e., the upper side. This provides all-round protection for the polarizer and eliminates the need for depositing an inorganic protective layer in the first direction, i.e., the Y-axis. This reduces the size of the display in the first direction, thus contributing to the realization of an ultra-thin display.

[0101] Based on the same application concept, the present application also provides a method for manufacturing a display screen. The solution provided by this device is similar to the solution described above for the display screen. Therefore, the specific limitations of one or more display screen manufacturing method embodiments provided below can be found in the above-mentioned limitations on the display screen and will not be repeated here.

[0102] In some exemplary embodiments, Figure 10 As shown, a method for preparing a display screen is provided, which includes the following S1002 to S1008.

[0103] S1002: Provide polarizer, display panel and cover.

[0104] S1004: forming protective layers on two sides of the polarizer that are opposite to each other in the second direction to form a polarizing structure; the material of the protective layers includes an inorganic waterproof material.

[0105] S1006: Disposing a polarizing structure on one side of the display panel in a first direction; the first direction is perpendicular to the second direction.

[0106] S1008: Disposing a cover plate on a side of the polarizing structure away from the display panel.

[0107] Please continue reading Figure 4 , a polarizer 121, a display panel 11, and a cover plate 13 can be obtained separately, and protective layers 122 are formed on two sides of the polarizer 121 opposite to each other in the second direction, thereby forming a polarizing structure 12. Then, a lamination process can be used to laminate the polarizing structure 12 to one side of the display panel 11 in the first direction, and to laminate the cover plate 13 to the side of the polarizing structure 12 away from the display panel 11, thereby forming a display screen.

[0108] In the method for preparing the display screen provided by the above embodiment, since the polarizer 121 is provided with protective layers 122 on both sides opposite to each other in the second direction, and the material of the protective layer 122 is an inorganic waterproof material, the protective layer 122 can effectively prevent environmental water and oxygen from invading the interior of the polarizer 121 from the side, and avoid hydrolysis of the internal material of the polarizer 121 due to water and oxygen erosion, thereby maintaining long-term stable polarization performance, improving the barrier performance of the display screen, and solving the problem that the polarizer 121 is prone to fading in a high temperature and high humidity environment, resulting in poor display effect. Therefore, there is no need to apply waterproof glue around the display panel 11 and the polarizer 121, thereby avoiding the secondary protection process of applying waterproof glue, thereby reducing the avoidance distance between the display screen and the edge of the cover plate 13, effectively reducing the black edge of the display screen, and improving the screen-to-body ratio of the display screen.

[0109] Please continue reading Figures 7 to 9In some exemplary embodiments, S1004, forming a protective layer on two opposite sides of the polarizer in the second direction includes depositing the inorganic waterproof material on the two opposite sides of the polarizer in the second direction to form the protective layer. In practice, a deposition process can be used to deposit the inorganic waterproof material on the two opposite sides of the polarizer in the second direction to form the protective layer.

[0110] The deposition process includes any suitable coating (deposition) technology, such as atomic layer deposition (ALD) process, physical vapor deposition (PVD) process, chemical vapor deposition (CVD) process, plasma enhanced chemical vapor deposition (PECVD) process or low pressure chemical vapor deposition (LPCVD) process.

[0111] For example, if the protective layer 122 is made of silicon oxide, ALD or CVD can be used to form a silicon oxide layer on two opposite sides of the polarizer 121 in the second direction. It should be noted that this is only an example, and the material and deposition process of the protective layer 122 are not limited thereto.

[0112] Please continue reading Figures 7 to 9 In some exemplary embodiments, S1008, setting a cover plate on a side of the polarizing structure away from the display panel may include: setting an optical adhesive layer on a side of the polarizing structure away from the display panel, and setting a cover plate on a side of the optical adhesive layer away from the polarizing structure.

[0113] Optionally, a lamination process is employed to laminate an optical adhesive layer 14 onto the side of the polarizing structure 12 away from the display panel 11, and to laminate a cover plate 13 onto the side of the optical adhesive layer 14 away from the polarizing structure 12. Thus, by bonding the polarizing structure 12 and the cover plate 13 via the optical adhesive layer 14, the optical performance of the display screen may be improved and the mechanical stability thereof may be enhanced.

[0114] Please continue reading Figures 7 to 9 In some exemplary embodiments, before step S1006, the method for manufacturing a display screen further includes: providing a support layer, and disposing a display panel on one side of the support layer in the first direction. In step S1006, disposing a polarizing structure on one side of the display panel in the first direction includes: disposing the polarizing structure on a side of the display panel away from the support layer. After step S1008, the method for manufacturing a display screen further includes: disposing a buffer layer on a side of the support layer away from the display panel.

[0115] Optionally, a lamination process is used to laminate the display panel 11 onto one side of the support layer 15 along the first direction, and then laminate the polarizing structure 12 onto the side of the display panel 11 away from the support layer 15, and then laminate the optical adhesive layer 14 onto the side of the polarizing structure 12 away from the display panel 11, and laminate the cover plate 13 onto the side of the optical adhesive layer 14 away from the display panel 11, and then laminate the buffer layer 16 onto the side of the support layer 15 away from the display panel 11. In this way, by laminating the support layer 15 and the buffer layer 16 in sequence onto the side of the display panel 11 away from the backplane, the support layer 15 can stably support the display panel 11, maintain its structural stability, and protect key components during the production process, preventing operations such as film tearing from affecting the yield and quality of the display panel 11. The buffer layer 16 can effectively dissipate the heat generated by the operation of the display panel 11, and also has the functions of absorbing shock and providing electromagnetic shielding, thereby improving the performance and service life of the display panel 11.

[0116] In some exemplary embodiments, Figures 7 to 9 、 Figure 11 As shown, a method for preparing a display screen is provided, and the method may include the following S1102 to S1114.

[0117] S1102: Provide U-film layer, polarizer, display panel and glass cover.

[0118] S1104: Using a chemical vapor deposition process or a physical vapor deposition process, an inorganic waterproof material is deposited on two sides of the polarizer that are opposite each other in the second direction to form a protective layer, thereby forming a polarizing structure. Other deposition processes may also be used, and are not limited here. Inorganic waterproof materials include, but are not limited to, silicon oxide, silicon nitride, and the like.

[0119] S1106: Laminating the U-film layer and the display panel.

[0120] S1108: Laminating a polarizing structure to a side of the display panel away from the U-film layer.

[0121] S1110: Laminating an OCA layer to a side of the polarizing structure away from the display panel.

[0122] S1112: Laminating a glass cover plate to a side of the OCA layer away from the polarizing structure.

[0123] S1114: Laminating an SCF layer to a side of the U-film layer away from the display panel.

[0124] The method for preparing the display screen provided in the above embodiment deposits a micron-level protective coating on the side of the polarizer monomer through processes such as CVD or PVD, which can improve the waterproof ability of the polarizer monomer, thereby eliminating the process of applying waterproof glue on the edge of the display screen, reducing the avoidance width between the display screen and the edge of the cover plate, achieving the purpose of reducing the black edge of the display screen, increasing the screen-to-body ratio of the display screen, and thus improving the display effect.

[0125] It should be understood that, although the steps in each flowchart are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps may be executed in other orders. Moreover, at least a portion of the steps in each figure may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily to be carried out in sequence, but may be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0126] In some exemplary embodiments, Figure 12 As shown, an electronic device 20 is provided, including the display screen provided by any of the aforementioned embodiments.

[0127] An embodiment of the present application also provides an electronic device, comprising the antenna assembly in any of the aforementioned embodiments.

[0128] like Figure 13 As shown, further, take the above electronic device as a mobile phone as an example for explanation, specifically, Figure 13 As shown, the mobile phone may include a memory 31 (which may optionally include one or more computer-readable storage media), a processing circuit 32, a peripheral device interface 33, an antenna assembly of the above-mentioned embodiment, and an input / output (I / O) subsystem 36. These components may optionally communicate via one or more communication buses or signal lines 39. It will be understood by those skilled in the art that Figure 13 The mobile phone shown does not constitute a limitation of the mobile phone, and may include more or fewer components than shown, or combine certain components, or arrange the components differently. Figure 13 The various components shown in the EMBODIMENTS 100 are implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits.

[0129] The memory 31 optionally includes a high-speed random access memory and optionally includes a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, the software components stored in the memory 31 include an operating system 311, a communication module (or instruction set) 312, a global positioning system (GPS) module (or instruction set) 313, etc.

[0130] Processing circuitry 32 and other control circuitry can be used to control the operation of the mobile phone. The processing circuitry 32 can be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application-specific integrated circuits, etc. The processing circuitry 32 can be configured to implement control algorithms that control the use of electronic devices in the mobile phone. The processing circuitry 32 can also issue control commands for controlling various switches in the electronic devices.

[0131] I / O subsystem 36 couples input / output peripherals on the phone, such as a keypad and other input control devices, to peripheral interface 33. I / O subsystem 36 optionally includes a touch screen, buttons, a tone generator, an accelerometer (motion sensor), ambient light sensors and other sensors, light-emitting diodes and other status indicators, a data port, and the like. Illustratively, a user can control the operation of the phone by supplying commands via I / O subsystem 36, and can receive status information and other output from the phone using the output resources of I / O subsystem 36. For example, a user can press button 361 to turn the phone on or off.

[0132] Throughout this specification, references to terms such as "some embodiments," "other embodiments," and "desired embodiments" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Although these terms are used interchangeably throughout this specification, they do not necessarily refer to the same embodiment or example.

[0133] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features of the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A display screen, characterized in that: At least comprising a display panel, a polarizing structure and a cover plate arranged in sequence along a first direction; wherein, The polarizing structure includes a polarizer and a protective layer, wherein the protective layer is located on two sides of the polarizer that are opposite to each other in the second direction; the material of the protective layer includes an inorganic waterproof material; and the first direction is perpendicular to the second direction.

2. The display screen according to claim 1, wherein: The dimension of the protective layer in the second direction is less than or equal to 400 micrometers.

3. The display screen according to claim 2, wherein: The dimension of the protective layer in the second direction is less than or equal to 10 micrometers.

4. The display screen according to claim 1, wherein: The inorganic waterproof material includes at least one of silicon oxide and silicon nitride.

5. The display screen according to claim 1, wherein: The polarizer comprises a first adhesive layer, a phase retardation layer, a second adhesive layer, a base layer, a polarizing layer and a protective layer stacked in sequence along the first direction; the protective layer is arranged closer to the cover plate relative to the polarizing layer; The protective layer is located on two sides of the first adhesive layer, the phase delay layer, the second adhesive layer, the base layer, the polarization function layer and the protective layer which are respectively arranged opposite to each other in the second direction.

6. The display screen according to claim 1, wherein: The cover plate is aligned with an end portion of the polarizing structure along the first direction.

7. The display screen according to claim 1, wherein: The cover plate is expanded outwardly relative to the polarizing structure along the second direction by a preset first dimension; a minimum value of the preset first dimension is less than or equal to 0.4 mm.

8. The display screen according to claim 1, wherein: The orthographic projection of the display panel on a preset plane covers the orthographic projection of the polarizer on the preset plane; the preset plane is a plane perpendicular to the first direction.

9. The display screen according to claim 8, characterized in that The polarizer is aligned with the end portion of the display panel along the first direction; or, The polarizer is retracted relative to the display panel along the second direction to a preset second dimension; The preset second size is larger than the size of the protective layer in the second direction.

10. The display screen according to claim 1, wherein: The display screen further includes an optical adhesive layer, and the optical adhesive layer is located between the cover plate and the polarizing structure.

11. The display screen according to claim 1, wherein: The display screen further includes a supporting layer and a buffer layer. The supporting layer is located on a side of the display panel away from the polarizing structure, and the buffer layer is located on a side of the supporting layer away from the display panel.

12. An electronic device, characterized in that: The device comprises a display screen as described in any one of claims 1 to 11.

13. A method for preparing a display screen, characterized in that: include: Provide polarizers, display panels and cover plates; forming protective layers on two sides of the polarizer that are opposite to each other in the second direction to form a polarizing structure; The material of the protective layer includes inorganic waterproof material; The polarizing structure is disposed on one side of the display panel in a first direction; the first direction is perpendicular to the second direction; The cover plate is disposed on a side of the polarizing structure away from the display panel.

14. The method for preparing a display screen according to claim 13, wherein: The protective layers are formed on two sides of the polarizer that are opposite to each other in the second direction, including: The inorganic waterproof material is deposited on two sides of the polarizer that are opposite to each other in the second direction to form the protective layer.

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