Display module and electronic device

Abstract

The present application relates to the technical field of electronic devices, and provides a display module and an electronic device. The display module comprises a cover plate and a display panel. The cover plate is provided with a first functional layer, and the first functional layer comprises a plurality of first microstructures. The display panel is connected to the side of the cover plate facing away from the first functional layer. The display panel comprises a display body. A second functional layer is provided between the display body and the cover plate, the second functional layer comprises a plurality of second microstructures, and the radial size of the second microstructures is smaller than that of the first microstructures. The first functional layer has an anti-glare effect, and the second functional layer has an anti-flicker effect, thereby improving the display effect of the display module. The first functional layer and the second functional layer are respectively located on different carriers, so that the processing of the first functional layer and the processing of the second functional layer do not affect each other, thereby reducing the processing difficulty of the first functional layer and the second functional layer, facilitating mass production of the display module, and improving the stability of the first microstructures and the second microstructures, thus improving the respective effects of the first functional layer and the second functional layer.

Description

Display module and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411016772.4, filed on July 26, 2024, and entitled "A display module and electronic device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic devices, and in particular to a display module and electronic device. BACKGROUND

[0003] The screen of the electronic device is prone to display problems such as glare and flash points, which affects the display effect of the screen and is not conducive to the user's viewing experience.

[0004] SUMMARY

[0005] The present application aims to provide a display module and electronic device to solve the technical problems existing in the prior art, and the processing difficulty is relatively low.

[0006] In a first aspect, the embodiments of the present application provide a display module, comprising: a cover plate and a display panel, the cover plate has a first functional layer, the first functional layer comprises a plurality of first microstructures; the display panel is connected to the side of the cover plate away from the first functional layer; wherein the display panel comprises a display body, a second functional layer is arranged between the display body and the cover plate, the second functional layer comprises a plurality of second microstructures, and the radial dimension of the second microstructure is smaller than the radial dimension of the first microstructure.

[0007] When external light is incident on the cover plate, the light can be diffusely reflected on the first functional layer, so that the user's eyes will not receive dazzling specular reflection light. Therefore, the first functional layer has an anti-glare effect, reduces the possibility that the external ambient light interferes with the display effect of the display module, and improves the user's viewing experience. The display body can emit light to the outside world. Since the second functional layer is located between the cover plate and the display body, the light emitted by the display body can first pass through the second functional layer and then pass through the first functional layer to the outside world, wherein the light can first be deflected on the second microstructure and then be deflected on the first microstructure. Since the second functional layer has a plurality of second microstructures with small radial dimensions, the second functional layer can have a diverging effect on the light. Specifically, under the action of the plurality of second microstructures, the light passing through the second functional layer can be deflected in multiple directions and thus be scattered, and the light intensity of the scattered light decreases, and the brightness of the light also decreases. Since the brightness of the light decreases, even if different lights are mixed and superimposed when passing through the first microstructure, bright spots will not be formed, and the display picture of the display module will not have a brightness uneven phenomenon, thereby improving the user's viewing experience.

[0008] The first functional layer and the second functional layer are respectively located on different carriers, that is, the first functional layer and the second functional layer are not all formed on the cover plate, so that the processing of the first functional layer and the processing of the second functional layer will not affect each other, thereby facilitating the reduction of the processing difficulty of the first functional layer and the second functional layer, ensuring the processing quality of the first functional layer and the second functional layer, improving the stability of the first microstructure and the second microstructure, and improving the effect of the first functional layer and the second functional layer. At the same time, the above processing difficulty is low and easy to implement, thereby facilitating mass production of the display module.

[0009] In a possible implementation, the radial dimension D1 of the first microstructure is 15um-40um, and the haze of the first functional layer is 20%-40%.

[0010] By designing the radial dimension of the first microstructure and the haze of the first functional layer within a reasonable range, the anti-glare effect of the first functional layer is improved, thereby improving the display effect of the display module to improve the user's viewing experience.

[0011] In a possible implementation, the cover plate has a first surface, and the first microstructure is located on the first surface; wherein the first microstructure is protruded away from the display panel, or the first microstructure is recessed towards the display panel.

[0012] Specifically, the first microstructure in relief can be formed on the first surface by a spraying process, or the first microstructure in recess can be formed on the first surface by an etching process. In actual production, the processing technology of the first functional layer can be selected according to actual use needs, which can adopt a spraying process or an etching process, thereby improving the flexibility of the first functional layer processing. The first microstructure in recess is beneficial to reducing the thickness of the cover plate, that is, the first microstructure does not need to occupy additional space in the thickness direction of the display module, so that the display module is more lightweight as a whole.

[0013] In a possible implementation, the display body includes a plurality of pixel units, and each pixel unit includes a sub-pixel; and the projection area of one second microstructure is smaller than the projection area of one sub-pixel along the thickness direction of the display module.

[0014] When the radial dimension of the second microstructure is smaller than the radial dimension of the sub-pixel, the light of the sub-pixel can be sufficiently diverged in the second functional layer, so that the second functional layer has an ideal anti-glare effect.

[0015] In a possible implementation, the projections of a plurality of second microstructures are located within the projection of one sub-pixel along the thickness direction of the display module.

[0016] When a plurality of second microstructures fall within the projection of one sub-pixel, the light emitted by the sub-pixel can be deflected by the plurality of second microstructures, so that the light can be diverged in multiple directions, that is, one concentrated light is dispersed into multiple lights, thereby effectively reducing the brightness of the light. Such design improves the anti-glare effect of the second functional layer, that is, the light emitted by the sub-pixel can be sufficiently diverged by the second functional layer, thereby reducing the possibility of the display module having a glare problem.

[0017] In a possible implementation, the radial dimension D2 of the second microstructure is 1 um to 10 um, and the haze of the second functional layer is 1% to 15%.

[0018] By designing the radial dimension of the second microstructure and the haze of the second functional layer within a reasonable range, the second functional layer can effectively diverge the light, that is, the anti-glare effect of the second functional layer is improved, thereby improving the display effect of the display module to improve the viewing experience of the user.

[0019] In a possible implementation, the display module includes a substrate connected between the cover plate and the display panel; the second functional layer is arranged on the surface of the substrate facing the cover plate, or the second functional layer is arranged on the surface of the substrate facing the display panel.

[0020] The substrate can be regarded as a carrier of the second functional layer, and the material of the substrate can be the same as or different from that of the cover plate. In the production process of the display module, the cover plate and the substrate can be processed respectively, and then the first functional layer can be processed on the cover plate and the second functional layer can be processed on the substrate. Finally, the cover plate, the cover plate and the display panel are assembled together, so that the processing of the first functional layer and the processing of the second functional layer do not affect each other. This design has lower processing difficulty and is easier to implement, thereby facilitating mass production of the display module.

[0021] In a possible implementation, the substrate is a glass plate; and the second microstructure is protruded or recessed relative to the surface of the glass plate.

[0022] The glass plate provides a stable and reliable carrier for the second functional layer, thereby improving the stability and reliability of the second functional layer, and further improving the display effect of the display module and reducing the possibility of the display module having the above-mentioned flash point problem. At the same time, the glass plate also protects the display panel to ensure the normal operation of the display panel. In addition, since the glass plate has high strength, the glass plate can improve the strength of the entire display module, i.e., improve the stability of the overall structure of the display module, thereby facilitating the extension of the overall service life of the display module.

[0023] In a possible implementation, the substrate is a plastic plate; and the second microstructure is protruded or recessed relative to the surface of the plastic plate.

[0024] The structure of the plastic plate is relatively stable, thereby providing a stable and reliable carrier for the second functional layer, which is conducive to improving the stability and reliability of the second functional layer, and further improving the display effect of the display module and reducing the possibility of the display module having the above-mentioned flash point problem. At the same time, the plastic plate has light weight, which is conducive to reducing the dead weight of the entire display module. On the other hand, the plastic plate is easy to process and form, thereby reducing the production difficulty of the display module and facilitating mass production of the display module. In addition, the plastic plate also protects the display panel to ensure the normal operation of the display panel. The surface of the plastic plate can be formed with the second functional layer by using a spraying process. In addition, since the plastic material has low hardness, a pressing process can also be selected to form the second functional layer, for example, a roller or other device can be used to press the second microstructure on the surface of the plastic plate. The pressing process is relatively simple, thereby reducing the processing difficulty of the second functional layer and facilitating mass production of the entire display module.

[0025] In a possible implementation, the display panel includes a polarizing sheet, the polarizing sheet is connected to the side of the display body close to the cover plate; a protective film is arranged on the side of the polarizing sheet facing the cover plate; and the second functional layer is arranged on the protective film.

[0026] The protective film is provided with the second functional layer, that is, the protective film can be a carrier of the second functional layer, so that the design does not need to spray, etch or emboss the internal structure of the polarizer, that is, the second functional layer does not affect the internal structure of the polarizer, improves the stability and reliability of the polarizer, and is beneficial to prolong the service life of the polarizer.

[0027] In a possible implementation, the display panel includes a polarizer connected to the display body near the side of the cover plate; and the second functional layer is arranged on the polarizer.

[0028] The carrier of the first functional layer can be the cover plate, and the carrier of the second functional layer is the polarizer in the display panel, that is, the first functional layer and the second functional layer are arranged on different carriers, so that the processing of the first functional layer and the processing of the second functional layer do not affect each other, the processing difficulty of the first functional layer and the second functional layer is reduced, and mass production of the display module is facilitated.

[0029] In a possible implementation, the polarizer includes a polarizing layer and a first protective layer located on the side of the polarizing layer close to the cover plate; and the second functional layer is arranged on the surface of the first protective layer, wherein the second microstructure is protruding or recessed relative to the surface of the first protective layer.

[0030] The polarizing layer can be a polyvinyl alcohol layer treated in a special way, which mainly plays a polarizing role, that is, the polarizing layer can control the light emitted from the display body by using the polarization characteristics of light to realize the normal display function of the display module. The first protective layer can be a TAC layer or a PET layer, which plays a supporting and protecting role for the polarizer, thereby facilitating the extension of the service life of the entire polarizer. The second functional layer is arranged on the first protective layer, which reduces the possibility of affecting the polarizing layer by the second functional layer, that is, without spraying, etching or embossing on the polarizing layer, the polarizing effect of the polarizing layer is not affected, and the reliability of the polarizer is improved.

[0031] In a possible implementation, the polarizer includes a polarizing layer and a first protective layer located on the side of the polarizing layer close to the cover plate; and the second functional layer is arranged in the first protective layer, wherein the second microstructure is a transparent particle.

[0032] The second microstructure can also be a transparent particle which can deflect light rays. The transparent particle can be made of plastic or other transparent materials. The transparent particle can be added to the first protective layer during the molding process of the first protective layer, that is, the transparent particle is integrated with the first protective layer. The above design eliminates the need for etching, spraying and other treatments on the first protective layer, simplifies the production process of the polarizer and the entire display module, and facilitates mass production of the display module.

[0033] In a possible implementation, the polarizer includes a polarizing layer and a second protective layer located on a side of the polarizing layer close to the display body; and the second functional layer is arranged on a surface of the second protective layer, wherein the second microstructure is protruded or recessed relative to the surface of the second protective layer.

[0034] The principle of arranging the second functional layer on the second protective layer is the same as that of arranging the second functional layer on the first protective layer, which is not repeated here.

[0035] In a possible implementation, the polarizer includes a polarizing layer and a second protective layer located on a side of the polarizing layer close to the display body; and the second functional layer is arranged in the second protective layer, wherein the second microstructure is a transparent particle.

[0036] The principle of arranging the second functional layer with the transparent particle on the second protective layer is the same as that of arranging the second functional layer with the transparent particle on the first protective layer, which is not repeated here.

[0037] In a possible implementation, the cover plate and the display panel are connected by a gel; and the second functional layer is located in the gel, wherein the second microstructure is a transparent particle.

[0038] The second microstructure can be a transparent particle which can be arranged in the gel between the cover plate and the display panel, that is, the gel and the second functional layer are integrated. The above design eliminates the need for etching, spraying and other treatments on the substrate or the polarizer, simplifies the production process of the entire display module, and facilitates mass production of the display module.

[0039] In a possible implementation, the display panel includes a polarizer; the polarizer includes a polarizing layer and a first protective layer located on a side of the polarizing layer close to the cover plate; the polarizing layer and the first protective layer are connected by a gel; and the second functional layer is located in the gel, wherein the second microstructure is a transparent particle; or the polarizer includes a polarizing layer and a second protective layer located on a side of the polarizing layer close to the display body; the polarizing layer and the first protective layer are connected by a gel; and the second functional layer is located in the gel, wherein the second microstructure is a transparent particle.

[0040] The second microstructure can be a transparent particle, which can be arranged in the adhesive between the polarizing layer and the first protective layer, or which can also be arranged in the adhesive between the polarizing layer and the second protective layer. That is, the second functional layer can be formed in the adhesive. Specifically, before the adhesive is used, the transparent particle (i.e., the second microstructure) described above can be mixed into the adhesive, so that the adhesive and the second functional layer become one whole. The above design eliminates the need for etching, spraying or other processing of the first protective layer or the second protective layer, simplifies the production process of the polarizing sheet and the entire display module, and is conducive to mass production of the display module.

[0041] In a possible implementation, the display module is a flexible display module, wherein the cover plate includes a first folding area, and the first folding area is provided with the first functional layer; the display body includes a second folding area, and the first folding area and the second folding area have the second functional layer therebetween.

[0042] The flexible display module will be repeatedly unfolded and folded during use, so that a crease is likely to appear on the first folding area of the cover plate, which will affect the display effect of the flexible display module. The first folding area is provided with the first functional layer having an anti-glare effect, so that external light will be diffusely reflected at the crease of the first folding area rather than specularly emitted, thereby helping to weaken the crease in terms of visual effect, that is, the user will not see obvious traces of the crease on the display module during use. At the same time, the first folding area and the second folding area have the second functional layer therebetween, and the second functional layer has an anti-glare effect, which improves the display effect at the crease of the display module, so that the electronic device can provide a clear and comfortable display screen for the user to improve the use experience of the electronic device.

[0043] In a possible implementation, the display module is a curved display module, wherein the cover plate includes a first arc-shaped area, and the first arc-shaped area is provided with the first functional layer; the display body includes a second arc-shaped area, and the first arc-shaped area and the second arc-shaped area have the second functional layer therebetween.

[0044] By arranging the second functional layer between the first arc-shaped area and the second arc-shaped area, the problem of glare spot generated by the curved display module can be solved, thereby improving the use experience of the curved-screen mobile phone. At the same time, by arranging the second functional layer between the first arc-shaped area and the second arc-shaped area, the light emitted at the edge of the display body is first diverged before passing through the cover plate, reducing the intensity of the light, so that the user can hardly see obvious green light at the edge of the display module, which improves the "green edge" problem and is conducive to improving the user experience.

[0045] In a second aspect, an electronic device is provided, comprising: a housing and a display module, the display module is mounted on the housing, and the display module is any one of the display modules described above.

[0046] By using the display module described above, the electronic device can provide a clear and comfortable display screen for the user, so as to improve the user experience of the electronic device. Since the display module has the technical effects described above, the electronic device with the display module also has the technical effects described above, which will not be repeated here.

[0047] It should be understood that the foregoing general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0048] FIG. 1 is a schematic view of a display module according to an embodiment of the present application;

[0049] FIG. 2 is a schematic view of a display module according to another embodiment of the present application;

[0050] FIG. 3 is an exploded schematic view of a display module according to an embodiment of the present application;

[0051] FIG. 4 is a schematic view of a display module according to another embodiment of the present application;

[0052] FIG. 5 is a schematic view of a display module according to an embodiment of the present application, in which a glass plate is arranged in the display module;

[0053] FIG. 6 is a schematic view of a display module according to another embodiment of the present application, in which a glass plate is arranged in the display module;

[0054] FIG. 7 is a schematic view of a display module according to another embodiment of the present application, in which a glass plate is arranged in the display module;

[0055] FIG. 8 is a schematic view of a display module according to an embodiment of the present application, in which a plastic plate is arranged in the display module;

[0056] FIG. 9 is a partial schematic view of a display module according to an embodiment of the present application;

[0057] FIG. 10 is a schematic view of a sub-pixel and a projection of a second microstructure according to an embodiment of the present application;

[0058] FIG. 11 is an exploded schematic view of a display module according to another embodiment of the present application;

[0059] FIG. 12 is an exploded schematic view of a display module according to another embodiment of the present application;

[0060] FIG. 13 is a schematic view of a polarizing sheet according to an embodiment of the present application;

[0061] FIG. 14 is a schematic view of a polarizing sheet according to another embodiment of the present application;

[0062] FIG. 15 is a schematic view of a polarizer according to another embodiment of the present application;

[0063] FIG. 16 is a schematic view of a polarizer according to another embodiment of the present application;

[0064] FIG. 17 is a schematic view of a polarizer and a protective film according to an embodiment of the present application;

[0065] FIG. 18 is a schematic view of a display module according to another embodiment of the present application;

[0066] FIG. 19 is a schematic view of an electronic device according to an embodiment of the present application;

[0067] FIG. 20 is an exploded schematic view of a curved display module according to an embodiment of the present application;

[0068] FIG. 21 is a schematic view of an electronic device according to another embodiment of the present application;

[0069] FIG. 22 is an exploded schematic view of a flexible display module according to an embodiment of the present application.

[0070] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the present application. DETAILED DESCRIPTION

[0071] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0072] In the description of the present application, unless explicitly defined and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" means two or more; the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0073] In the description of the present application, it should be understood that the "upper", "lower" and the like described in the embodiments of the present application are described with reference to the angle shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when referring to one element connected to another element "on" or "below", it can be directly connected to another element "on" or "below", or indirectly connected to another element "on" or "below" through an intermediate element.

[0074] With the continuous development of science and technology, electronic devices such as mobile phones, tablets, and laptops begin to pursue the comfort of screen viewing to improve the user experience. For example, the cover plate of the screen of the electronic device adopts an anti-glare (AG) design, that is, the surface of the cover plate is treated to have a certain roughness to reduce the possibility of specular reflection on the surface of the cover plate, thereby effectively reducing the interference of external ambient light on the screen, improving the display effect of the screen, and allowing the user to have a good viewing experience. Such a screen can be referred to as a soft light screen.

[0075] With the increase of the pixel unit density (PPI) of the screen, the above-mentioned screen with the AG design is prone to have a flash point problem, that is, the display screen of the screen has a color unevenness or a brightness unevenness problem, thereby affecting the display effect of the screen and being not conducive to the user's viewing experience.

[0076] Based on this, an embodiment of the present application provides a display module, which can be used in electronic devices such as tablets, laptops, desktop computers, foldable mobile phones, and straight mobile phones.

[0077] As shown in FIG. 1, FIG. 1 is a schematic diagram of a display module 10 in an embodiment of the present application. The display module 10 includes a cover plate 1 and a display panel 3. The cover plate 1 can be made of a material with high strength and high transparency, such as glass. The cover plate 1 protects the display panel 3, which helps to reduce the possibility of the display panel 3 being scratched or damaged by external impact, thereby prolonging the service life of the display panel 3 and ensuring the normal use of the display panel 3.

[0078] The cover plate 1 is bonded to the display panel 3, for example, the cover plate 1 can be bonded to the display panel 3 by OCA optical adhesive (not shown in the figure). The display panel 3 can be, but is not limited to, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, and the like.

[0079] The first functional layer 2 is provided on the first surface 1a of the cover plate 1 away from the display panel 3, that is, the first functional layer 2 is located on the outer surface of the cover plate 1. The first functional layer 2 includes a plurality of first microstructures 21, each of which can protrude away from the display panel 3, so that the cover plate 1 has a concave-convex outer surface. When external light shines on the cover plate 1, the light can be diffusely reflected on the first functional layer 2, that is, the light shining on the first functional layer 2 can be irregularly reflected in all directions through the first microstructures 21, so that the user's eyes will not receive dazzling specular reflection light. Therefore, the first functional layer 2 has an anti-glare effect, reduces the possibility of external ambient light interfering with the display effect of the display module 10, and improves the user's viewing experience.

[0080] As shown in FIG. 2, FIG. 2 is a schematic diagram of a display module 10 in another embodiment of the present application, wherein the area enclosed by the dashed line represents a pixel unit 311. The display panel 3 has a plurality of pixel units 311 arranged in an array, each of which can include three sub-pixels 3111, specifically, the three sub-pixels 311 are green sub-pixels 3111a, blue sub-pixels 3111b and red sub-pixels 3111c respectively. Understandably, the green sub-pixel 3111a can emit green light to the outside world, the blue sub-pixel 3111b can emit blue light to the outside world, and the red sub-pixel 3111c can emit red light to the outside world. When the light emitted by each of the above sub-pixels 3111 passes through the cover plate 1, it will be deflected on the first microstructure 21. When two or more sub-pixels 3111 light is deflected by one first microstructure 21, each light can be mixed and superimposed in the first microstructure 21, thereby causing a certain brightness deviation. From the perspective of the display module 10 as a whole, the displayed picture will have a non-uniform brightness, that is, the picture of the display module 10 has the above-mentioned flash point problem.

[0081] The generation of the flash point problem will be further described below with a specific case as an example.

[0082] Continuing to refer to FIG. 2, the first functional layer 2 has a first microstructure 21a, the position of which corresponds to that of one green sub-pixel 3111a and one blue sub-pixel 3111b, which are adjacent. Specifically, along the thickness direction Z of the display module 10, the projection of the first microstructure 21a can overlap with the projection of the green sub-pixel 3111a and the projection of the blue sub-pixel 3111b respectively.

[0083] The light emitted by the green sub-pixel 3111a and the light emitted by the blue sub-pixel 3111b can both pass through the first microstructure 21a to the outside world, and the light emitted by the green sub-pixel 3111a and the light emitted by the blue sub-pixel 3111b will both be deflected on the first microstructure 21. The deflected light emitted by the green sub-pixel 3111a and the deflected light emitted by the blue sub-pixel 3111b will be superimposed and mixed together. The mixed light has a brightness that is obviously different from the original light. For example, the light intensity of the mixed light increases, that is, the brightness of the light increases. Therefore, a bright flash point will appear on the first microstructure 21a. When the above-mentioned situation occurs between the plurality of sub-pixels 3111 in the display module 10 and the plurality of first microstructures 21 in the first functional layer 2, the display module 10 has the flash point problem described above. The user will observe that the display screen of the display module 10 has a bright and dark uneven situation, so that the user feels that the display screen is relatively blurred and not clear enough.

[0084] A second functional layer can be provided in the display module to solve the flash point problem of the display module.

[0085] As shown in FIG. 3, FIG. 3 is an exploded schematic view of a display module 10 in an embodiment of the present application. The display module 10 includes a cover plate 1 and a display panel 3, and the cover plate 1 is connected to the display panel 3. The cover plate 1 has a first functional layer 2, and the first functional layer 2 includes a plurality of first microstructures 21. The display panel 3 includes a display body 31, and a second functional layer 4 is provided between the display body 31 and the cover plate 1. The second functional layer 4 includes a plurality of second microstructures 41, and the radial dimension D2 of the second microstructures 41 is smaller than the radial dimension D1 of the first microstructures 21.

[0086] As mentioned above, the first functional layer 2 can have an anti-glare effect, which reduces the possibility that the ambient light in the outside world interferes with the display effect of the display module 10 and improves the user's viewing experience.

[0087] The display body 31 can emit light to the outside world. Since the second functional layer 4 is located between the cover plate 1 and the display body 31, the light emitted by the display body 31 can first pass through the second functional layer 4 and then pass through the first functional layer 2 to the outside world, wherein the light can first be deflected on the second microstructure 41 and then be deflected on the first microstructure 21. Since the second functional layer 4 has a plurality of second microstructures 41 with small radial dimensions, the second functional layer 4 can play a role in diffusing light. Specifically, under the action of the plurality of second microstructures 41, the light passing through the second functional layer 4 can be deflected in multiple directions and thus be scattered, and the light intensity of the scattered light decreases, and the brightness of the light also decreases. Since the brightness of the light decreases, even if different lights are mixed and superimposed when passing through the first microstructure 21, no bright flash points are formed, and for the display picture of the display module 10, no brightness unevenness phenomenon occurs, thereby improving the viewing experience of the user.

[0088] In related technologies, the first functional layer and the second functional layer are all integrated on the cover plate, and the first functional layer and the second functional layer are easily affected by each other. For example, when the second functional layer is processed, the processing raw material used by the second functional layer is easily sprayed or corroded onto the first functional layer, thereby adversely affecting the first functional layer. At the same time, the structural stability of the internal microstructures of the first functional layer and the second functional layer is also easily affected, thereby affecting the effects of the two. In addition, the processing difficulty of the first functional layer and the second functional layer is increased, thereby increasing the production difficulty of the cover plate and the entire display module, making it difficult to achieve mass production. Compared with related technologies, in the above-mentioned embodiments, the first functional layer 2 and the second functional layer 4 are located on different carriers, that is, the first functional layer 2 and the second functional layer 4 are not all formed on the cover plate 1. This makes the processing of the first functional layer 2 and the processing of the second functional layer 4 not affect each other, thereby facilitating the reduction of the processing difficulty of the first functional layer 2 and the second functional layer 4, ensuring the processing quality of the first functional layer 2 and the second functional layer 4, improving the structural stability of the first microstructure 21 and the second microstructure 41, and improving the effects of the first functional layer 2 and the second functional layer 4. At the same time, the above-mentioned processing difficulty is low and easy to implement, thereby facilitating the mass production of the display module 10.

[0089] As a specific implementation, as shown in FIG. 4, FIG. 4 is a schematic diagram of a display module 10 in another embodiment of the present application. The cover plate 1 and the display panel 3 are provided with a substrate 5, and the substrate 5 is connected with the cover plate 1 and the display panel 3 respectively. The second functional layer 4 can be arranged on the surface of the substrate 5 away from the cover plate 1.

[0090] The substrate 5 can be regarded as a carrier of the second functional layer 4, and the material of the substrate 5 can be the same as or different from the cover plate 1. In the production process of the display module 10, the cover plate 1 and the substrate 5 can be processed respectively, and then the first functional layer 2 is processed on the cover plate 1 and the second functional layer 4 is processed on the substrate 5, and finally the cover plate 1, the substrate 5 and the display panel 3 are assembled together, so that the processing of the first functional layer 2 and the processing of the second functional layer 4 do not affect each other. Compared with the above-mentioned scheme of integrating the first functional layer 2 and the second functional layer 4 in the cover plate 1, the above-mentioned design has lower processing difficulty and is easier to implement, thereby being beneficial to mass production of the display module 10.

[0091] In some other embodiments, the second functional layer 4 can also be arranged on the surface of the substrate 5 facing the display panel 3.

[0092] In some embodiments, the above-mentioned substrate can be a glass plate. As shown in FIG. 5, FIG. 5 is a schematic view of arranging a glass plate 51 in the display module 10 according to an embodiment of the present application. The glass plate 51 can be bonded between the cover plate 1 and the display panel 3 by the adhesive 6, which can be an OCA optical adhesive.

[0093] The second functional layer 4 can be arranged on the surface of the glass plate 51 facing the display panel 3, and the second microstructure 41 can protrude towards the display panel 3. Specifically, the surface of the glass plate 51 can be formed with the second functional layer 4 by using a spraying process, and the material of the second microstructure 41 can also be glass, that is, the spraying material used in the spraying process can be a material containing silicon dioxide.

[0094] In the production process of the display module 10, the cover plate 1 and the glass plate 51 can be processed respectively using raw materials, and then the first functional layer 2 is processed on the cover plate 1 and the second functional layer 4 is processed on the glass plate 51, and finally the cover plate 1, the glass plate 51 and the display panel 3 are assembled together.

[0095] The glass plate 51 provides a stable and reliable carrier for the second functional layer 4, thereby improving the stability and reliability of the second functional layer 4, and further improving the display effect of the display module 10 and reducing the possibility of the display module 10 having the above-mentioned flash point problem. At the same time, the glass plate 51 also protects the display panel 3 to ensure the normal operation of the display panel 3. In addition, since the glass plate 51 has high strength, the strength of the entire display module 10 can be improved by arranging the glass plate 51, that is, the stability of the overall structure of the display module 10 is improved, thereby being beneficial to prolonging the service life of the display module 10 as a whole.

[0096] With reference back to FIG. 5, in the above embodiment, the cover plate 1 is provided with the first functional layer 2, and the first functional layer 2 includes a plurality of first microstructures 21, which can protrude away from the display panel 3. Specifically, the first functional layer 2 can be formed on the surface of the cover plate 1 by a spraying process, and the material of the first microstructures 21 can be the same as that of the cover plate 1, for example, the first microstructures 21 and the cover plate 1 can both be glass. As described above, the light from the outside can be diffusely reflected on the first functional layer 2, that is, the first functional layer 2 has an anti-glare effect, so that the display module 10 can provide a soft light display screen for the user, and the user's viewing experience is improved.

[0097] As shown in FIG. 6, FIG. 6 is a schematic view of a glass plate 51 provided in the display module 10 in another embodiment of the present application. On the glass plate 51, the second microstructures 41 can be recessed towards the cover plate 1, that is, the second microstructures 41 can be pits formed on the surface of the glass plate 51. Specifically, the second microstructures 41 can be formed on the surface of the glass plate 51 by an etching process, for example, chemical etching or laser etching.

[0098] The recessed second microstructures 41 are beneficial to thinning the thickness of the glass plate 51, that is, the second microstructures 41 do not need to occupy additional space in the thickness direction Z of the display module 10, so that the display module 10 is more lightweight as a whole. As described above, in some embodiments, the second functional layer 4 can be formed by a spraying process. In actual production, the processing technology of the second functional layer 4 can be selected according to the actual use needs, which can adopt a spraying process or an etching process, so that the flexibility of processing the second functional layer 4 is improved.

[0099] On the cover plate 1, the first microstructures 21 can be recessed towards the display panel 3, that is, the first microstructures 21 can be pits formed on the surface of the cover plate 1. Specifically, the first microstructures 21 can be formed on the surface of the cover plate 1 by an etching process, for example, chemical etching or laser etching.

[0100] The recessed first microstructures 21 are beneficial to thinning the thickness of the cover plate 1, that is, the first microstructures 21 do not need to occupy additional space in the thickness direction of the display module 10, so that the display module 10 is more lightweight as a whole. As described above, in some embodiments, the first functional layer 2 can be formed by a spraying process. In actual production, the processing technology of the first functional layer 2 can be selected according to the actual use needs, which can adopt a spraying process or an etching process, so that the flexibility of processing the first functional layer 2 is improved.

[0101] As shown in FIG. 7, which is a schematic diagram of a display module 10 with a glass plate 51 in another embodiment of the present application. The second functional layer 4 can be disposed on the surface of the glass plate 51 facing the cover plate 1, wherein the second microstructure 41 can protrude towards the cover plate 1. In another embodiment, the second microstructure 41 can be recessed away from the cover plate 1, i.e. the second microstructure 41 can be a pit on the glass plate 51.

[0102] In some embodiments, the substrate mentioned above can be a plastic plate. As shown in FIG. 8, which is a schematic diagram of a display module 10 with a plastic plate 52 in an embodiment of the present application. The plastic plate 52 can be bonded between the cover plate 1 and the display panel 3 by the adhesive 6, which can be an OCA optical adhesive.

[0103] The plastic plate 52 can be regarded as a carrier of the second functional layer 4. The plastic plate 52 can be a transparent plate, and its specific material can be polyethylene terephthalate (PET), triacetate cellulose (TAC) or cyclo-olefin polymer (COP). The above-mentioned materials have good light transmission, and have high stability and reliability.

[0104] The second functional layer 4 can be disposed on the surface of the plastic plate 52 facing the display panel 3, wherein the second microstructure 41 can protrude towards the display panel 3. Specifically, the surface of the plastic plate 52 can be sprayed to form the second functional layer 4. In addition, due to the low hardness of the plastic material, the second functional layer 4 can also be formed by embossing process, for example, the second microstructure 41 can be pressed on the surface of the plastic plate 52 by using a roller or other device. The embossing process is relatively simple, thereby reducing the processing difficulty of the second functional layer 4, and facilitating the mass production of the entire display module 10.

[0105] In the production process of the display module 10, the cover plate 1 and the plastic plate 52 can be first machined from raw materials, then the first functional layer 2 is machined on the cover plate 1, the second functional layer 4 is machined on the plastic plate 52, and finally the cover plate 1, the plastic plate 52 and the display panel 3 are assembled together.

[0106] The plastic plate 52 has a stable structure, thereby providing a stable and reliable carrier for the second functional layer 4, which is conducive to improving the stability and reliability of the second functional layer 4, and further conducive to improving the display effect of the display module 10 and reducing the possibility of the display module 10 having the above-mentioned flash point problem. At the same time, the plastic plate 52 has a relatively light weight, which is conducive to reducing the self-weight of the entire display module 10. On the other hand, the plastic plate 52 is easy to process and form, thereby reducing the production difficulty of the display module 10 and facilitating mass production of the display module 10. In addition, the plastic plate 52 also plays a protective role for the display panel 3, so as to ensure the normal work of the display panel 3.

[0107] In other embodiments, the second functional layer 4 described above can also be arranged on the surface of the plastic plate 52 on the side facing the cover plate 1. The second microstructure 41 can be protruding in the direction facing the cover plate 1, or can be recessed in the direction away from the cover plate 1.

[0108] With reference to FIG. 8, in some embodiments, the radial dimension D1 of the first microstructure 21 described above is 15um-40um, for example, 15um, 18um, 20um, 22um, 24um, 26um, 30um, 32um, 34um, 36um, 38um or 40um, and of course can also be other values within the above range.

[0109] Haze is an important parameter of optical transparency of transparent or translucent materials, and the haze of the first functional layer 2 is 20%-40%, for example, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38% or 40%, and of course can also be other values within the above range.

[0110] By designing the radial dimension of the first microstructure 21 and the haze of the first functional layer 2 within a reasonable range, the anti-glare effect of the first functional layer 2 is improved, thereby improving the display effect of the display module 10 to improve the user's viewing experience.

[0111] In some embodiments, the radial dimension D2 of the second microstructure 41 described above is smaller than the radial dimension D1 of the first microstructure 21. The radial dimension D2 of the second microstructure 41 is 1um-10um, for example, 1um, 2um, 3um, 4um, 5um, 6um, 7um, 8um, 9um or 10um, and of course can also be other values within the above range.

[0112] The haze of the second functional layer 4 is 1%-15%, for example, 1%, 3%, 5%, 7%, 9%, 10%, 12% or 15%, and of course can also be other values within the above range.

[0113] By designing the radial size of the second microstructure 41 and the haze of the second functional layer 4 within a reasonable range, the second functional layer can effectively disperse the light, that is, the anti-glare effect of the second functional layer 4 is improved, thereby improving the display effect of the display module 10 and the user's viewing experience.

[0114] As shown in FIG. 9, FIG. 9 is a partial schematic view of the display module 10 in an embodiment of the present application. The pixel unit 311 is located in the display body 31 described above. The radial size D2 of one second microstructure 41 can be smaller than the radial size D3 of one sub-pixel 3111, and the projection area of one second microstructure 41 is smaller than the projection area of one sub-pixel 3111 in the thickness direction of the display module 10. Here, the projection area of the sub-pixel 3111 can be understood as the projection area of the light-emitting area of the sub-pixel 3111. When the radial size of the second microstructure 41 is smaller than the radial size of the sub-pixel 3111, the light of the sub-pixel 3111 can be sufficiently dispersed in the second functional layer 4, so that the second functional layer 4 has an ideal anti-glare effect.

[0115] Further, the projections of the plurality of second microstructures 41 can fall within the projection of one sub-pixel 3111.

[0116] For example, the projections of the second microstructure 41a, the second microstructure 41b, the second microstructure 41c, and the second microstructure 41d can fall within the range of one green sub-pixel 3111a. Understandably, when the green sub-pixel 3111a emits light, the light can pass through the second microstructure 41a, the second microstructure 41b, the second microstructure 41c, and the second microstructure 41d and be deflected accordingly. The deflected light can be irregularly dispersed in multiple directions, that is, the above-mentioned second microstructures 41 disperse the relatively concentrated light emitted by the green sub-pixel 3111a.

[0117] The projections of the second microstructure 41e, the second microstructure 41f, the second microstructure 41g, and the second microstructure 41h can fall within the range of one blue sub-pixel 3111b. Similarly, when the blue sub-pixel 3111b emits light, the light can pass through the second microstructure 41e, the second microstructure 41f, the second microstructure 41g, and the second microstructure 41h and be deflected accordingly. As above, the light of the blue sub-pixel 3111b is also sufficiently dispersed after passing through the second microstructure 41.

[0118] The light intensity of the light rays after being diverged decreases, and the light brightness weakens. At this time, even if the light rays of the green sub-pixel 3111a and the light rays of the blue sub-pixel 3111b are deflected on the first microstructure 21 and mixed and superimposed, the light brightness of the mixed light rays is relatively low, and a bright bright spot is almost not formed. Understandably, the light rays emitted by other sub-pixels 3111 in the display module 10 will also be diverged by the second microstructure 41 in the second functional layer 4 after passing through the second functional layer 4, so that the display screen of the display module 10 almost does not appear the phenomenon of uneven brightness, thereby improving the viewing experience of the user.

[0119] As can be seen from the above, when a sub-pixel 3111 falls into the projections of multiple second microstructures 41, the light rays emitted by the sub-pixel 3111 can be deflected on multiple second microstructures 41, so that the light rays can be diverged in multiple directions, that is, a bundle of concentrated light rays is dispersed into multiple light rays, thereby effectively reducing the brightness of the light rays. This design improves the anti-bright spot effect of the second functional layer 4, that is, the second functional layer 4 can sufficiently diverge the light rays emitted by the sub-pixel 3111, thereby reducing the possibility of the display module 10 appearing a bright spot problem.

[0120] Next, a specific embodiment of a single sub-pixel 3111 and the second microstructure 41 corresponding thereto is described.

[0121] As shown in FIG. 10, FIG. 10 is a schematic diagram of the projection of a sub-pixel and a second microstructure in an embodiment of the present application, wherein the solid line in the figure represents the outer contour of the projection of the light emitting area of a single sub-pixel 3111, and the dashed line represents the outer contour of the projection of the second microstructure 41 on the sub-pixel 3111. It should be noted that the projection of the second microstructure 41 can be circular, and in other embodiments, the projection of the second microstructure 41 can be triangular, rectangular, or some irregular shape. The display module 10 can be applied to a 290PPI electronic device 100, and correspondingly, the size D3 of a sub-pixel 3111 in the display module 10 can be about 30um, and the size D2 of a single second microstructure 41 can be 5um. Along the thickness direction of the display module 10, the projection of at least one 4x4 second microstructure 41 array falls into the projection of the sub-pixel 3111, that is, the light rays emitted by the sub-pixel 3111 can be deflected by at least 16 second microstructures 41, and the deflection direction of the light rays by each second microstructure 41 can be different. Therefore, when the light rays of the sub-pixel 3111 pass through the above-mentioned second microstructure 41, the light rays are diverged in multiple directions, thereby reducing the brightness of the light rays.

[0122] It can be understood that when the size of the second microstructure 41 increases, the number of the second microstructures 41 corresponding to a single sub-pixel 3111 increases; when the size of the second microstructure 41 decreases, the number of the second microstructures 41 corresponding to a single sub-pixel 3111 decreases, and the specific number can be adjusted according to the actual use of the display module 10, for example, a single sub-pixel 3111 can correspond to 4 second microstructures 41, 9 second microstructures 41, 25 second microstructures 41 or 36 second microstructures 41, which are not listed one by one here.

[0123] It is mentioned above that the carrier of the second functional layer can be a glass plate or a plastic plate arranged between the cover plate and the display panel. In the embodiments of the present application, the polarizing plate of the display module can also be used as the carrier of the second functional layer, and the structure of the polarizing plate provided with the second functional layer will be further described below with reference to the drawings.

[0124] As shown in FIG. 11, FIG. 11 is an exploded schematic view of a display module 10 in another embodiment of the present application. The display panel 3 includes a polarizing plate 32 and a display body 31, and the polarizing plate 32 is located on the side of the display body 31 close to the cover plate 1 and is connected with the cover plate 1 and the display body 31 respectively. Specifically, the cover plate 1 can be connected with the polarizing plate 32 and the display body 31 through OCA optical adhesive (not shown in the figure). The second functional layer 4 can be arranged on the surface of the polarizing plate 32 facing the cover plate 1, wherein the second microstructure 41 can protrude in the direction close to the cover plate 1.

[0125] As shown in FIG. 12, FIG. 12 is an exploded schematic view of a display module 10 in another embodiment of the present application. The second functional layer 4 can also be arranged on the surface of the polarizing plate 32 away from the cover plate 1, wherein the second microstructure 41 can protrude in the direction away from the cover plate 1.

[0126] In the above embodiments, the second microstructure 41 can also be a pit.

[0127] Before the polarizing plate 32 and the display body 31 are assembled, the second functional layer 4 can be formed on the surface of the polarizing plate 32 by a spraying process, an etching process or an embossing process. After the polarizing plate 32 and the display body 31 are assembled into the display panel 3, they are assembled together with the cover plate 1 to form the display module 10.

[0128] In the related art, the first functional layer 2 and the second functional layer 4 are all integrated on the polarizer 32, so that the first functional layer 2 and the second functional layer 4 are easily affected by each other, and the specific case is similar to the case that the first functional layer 2 and the second functional layer 4 are all integrated on the cover plate 1, which will not be repeated here. In the above embodiment, the carrier of the first functional layer 2 is the cover plate 1, and the carrier of the second functional layer 4 is the polarizer 32 in the display panel 3, that is, the first functional layer 2 and the second functional layer 4 are respectively arranged on different carriers, so that the processing of the first functional layer 2 and the processing of the second functional layer 4 do not affect each other, which reduces the processing difficulty of the first functional layer 2 and the second functional layer 4, and is beneficial to realize mass production of the display module 10.

[0129] As a specific implementation, the second functional layer can be arranged on the protective layer of the polarizer. As shown in FIG. 13, FIG. 13 is a schematic diagram of the polarizer 32 in an embodiment of the present application. The polarizer 32 can include a polarizing layer 321 and a first protective layer 322 connected with the polarizing layer 321, and the first protective layer 322 can be located on the side of the polarizer 32 close to the cover plate 1 (as shown in FIG. 11). The polarizing layer 321 can be a polyvinyl alcohol (PVA) layer that is specially treated, which mainly plays a role of polarizing, that is, the polarizing layer 321 can control the light emitted from the display body by using the polarization characteristics of light to realize the normal display function of the display module 10. The first protective layer 322 can be a TAC layer or a PET layer, which plays a role of supporting and protecting the polarizer 32, thereby being beneficial to prolong the service life of the entire polarizer 32.

[0130] The second functional layer 4 can be arranged on the first protective layer 322, wherein along the thickness direction Z of the polarizer 32, the second functional layer 4 can be arranged on the upper surface of the first protective layer 322 or on the lower surface of the first protective layer 322. The second microstructure 41 can be a protrusion or a pit on the surface of the first protective layer 322. Arranging the second functional layer 4 on the first protective layer 322 reduces the possibility of affecting the polarizing layer 321 by the second functional layer 4, that is, without the need for spraying, etching or embossing on the polarizing layer 321, the polarizing effect of the polarizing layer 321 will not be affected, and the reliability of the polarizer 32 is improved.

[0131] As shown in FIG. 14, FIG. 14 is a schematic diagram of the polarizer 32 in another embodiment of the present application. The polarizer 32 can include a polarizing layer 321 and a second protective layer 323 connected with the polarizing layer 321, and the second protective layer 323 can be located on the side of the polarizer 32 close to the display body 31 (as shown in FIG. 11). The second protective layer 323 can be a TAC layer or a PET layer, and the second protective layer 323 plays a role of supporting and protecting the polarizer 32, thereby being beneficial to prolong the service life of the entire polarizer 32.

[0132] The second functional layer 4 can be arranged on the second protective layer 323. In the thickness direction Z of the polarizer 32, the second functional layer 4 can be arranged on the upper surface of the second protective layer 323, or can be arranged on the lower surface of the second protective layer 323. The second microstructure 41 can be a protrusion or a pit on the surface of the second protective layer 323. The principle of arranging the second functional layer 4 on the second protective layer 323 is the same as that of arranging the second functional layer on the first protective layer, which will not be repeated here.

[0133] The second microstructure mentioned above can be a protrusion or a pit, and can be formed on the corresponding carrier by a spraying, etching or embossing process. In the embodiments of the present application, the second microstructure can also be a transparent particle, which can deflect light and can be made of plastic or other transparent materials. The second functional layer with transparent particles will be further described below with reference to the accompanying drawings.

[0134] As mentioned above, the polarizer has a protective layer, which can be a TAC or PET plastic film layer, and the second functional layer can be located in the protective layer, that is, the transparent particle (i.e. the second microstructure) can be filled in the interior of the protective layer.

[0135] As a specific embodiment, as shown in FIG. 15, which is a schematic view of the polarizer 32 in another embodiment of the present application. The second functional layer 4 can be formed in the interior of the first protective layer 322 on one side of the polarizing layer 321, wherein the second microstructure 41 can be a transparent particle, which can be added to the first protective layer 322 during the production and molding of the first protective layer 322, that is, the transparent particle is integrated with the first protective layer 322. The above design eliminates the need for etching, spraying and other treatments of the first protective layer 322, simplifies the production process of the polarizer 32 and the entire display module 10, and is conducive to mass production of the display module 10.

[0136] In another embodiment, the transparent particle mentioned above can be arranged in the second protective layer, that is, the second functional layer can also be formed in the interior of the second protective layer.

[0137] As shown in FIG. 16, which is a schematic diagram of the polarizer 32 in another embodiment of the present application, the polarizing layer 321 can be bonded with the first protective layer 322 through the adhesive 6, which can be an OCA optical adhesive. The second microstructure 41 can be a transparent particle, which can be disposed in the adhesive 6 between the polarizing layer 321 and the first protective layer 322, that is, the second functional layer 4 can be formed in the adhesive 6. Specifically, before use, the transparent particle (i.e., the second microstructure 41) can be mixed into the adhesive 6, so that the adhesive 6 and the second functional layer 4 become one whole. The above design eliminates the need for etching, spraying or other processing of the first protective layer 322, simplifies the production process of the polarizer 32 and the entire display module 10, and facilitates mass production of the display module 10.

[0138] In some other embodiments, the polarizing layer can also be bonded with the second protective layer through an adhesive, and the adhesive between the polarizing layer and the second protective layer can also contain transparent particles, so that the adhesive and the second functional layer become one whole.

[0139] As shown in FIG. 17, which is a schematic diagram of the polarizer 32 and the protective film 33 in an embodiment of the present application, the surface of the polarizer 32 can be provided with the protective film 33, specifically, the protective film 33 can be bonded to the surface of the polarizer 32. The protective film 33 can protect the polarizer 32, reduce the possibility of scratching and damaging the surface of the polarizer 32, and prolong the service life of the polarizer 32 as a whole.

[0140] The protective film 33 is provided with the second functional layer 4, that is, the protective film 33 can serve as a carrier of the second functional layer 4, and specifically, the protective film 33 can be a PET film or a TAC film. The second microstructure 41 can be a transparent particle (the second microstructure shown in FIG. 17 is a transparent particle) or a protrusion or a pit formed on the surface of the protective film 33. The above design eliminates the need for spraying, etching or embossing on the internal structure of the polarizer 32, that is, the second functional layer 4 does not affect the internal structure of the polarizer 32, improves the stability and reliability of the polarizer 32, and is conducive to prolonging the service life of the polarizer 32.

[0141] As shown in FIG. 18, which is a schematic diagram of the display module 10 in another embodiment of the present application, the cover plate 1 can be connected with the display panel 3 through the adhesive 6. The second microstructure 41 can be a transparent particle, which can be disposed in the adhesive 6 between the cover plate 1 and the display panel 3, that is, the adhesive 6 and the second functional layer 4 become one whole. The above design eliminates the need for etching, spraying or other processing of the substrate 5 or the polarizer 32, simplifies the production process of the entire display module 10, and facilitates mass production of the display module 10.

[0142] An electronic device is provided in the embodiments of the present application. As shown in FIG. 19, FIG. 19 is a schematic diagram of an electronic device 100 in an embodiment of the present application. The electronic device 100 comprises a housing 20 and a display module 10, the display module 10 is installed in the housing 20, and the display module 10 can be the display module 10 described in the above embodiments, so that the electronic device 100 can provide a clear and comfortable display screen for the user, thereby improving the use experience of the electronic device 100.

[0143] With reference to FIG. 19, in some embodiments, the electronic device 100 can be a curved screen mobile phone, that is, the display module 10 can be a curved display module 10, which means that the display module 10 can have a certain curvature.

[0144] As shown in FIG. 20, FIG. 20 is an exploded schematic diagram of a curved display module 10 in an embodiment of the present application. In the curved display module 10, the edge of the cover plate 1 and the edge of the display panel 3 can have a certain curvature, specifically, the edge of the cover plate 1 can have a first arc-shaped area 11, and the first functional layer 2 is arranged on the first arc-shaped area 11. The edge of the display body 31 can have a second arc-shaped area 312, and part of the second functional layer 4 is located between the first arc-shaped area 11 and the second arc-shaped area 312, that is, the second functional layer 4 is between the first arc-shaped area 11 and the second arc-shaped area 312. Specifically, the edge of the glass plate or the plastic plate as the carrier of the second functional layer 4 can also have a certain curvature, and the shape thereof can correspond to the first arc-shaped area 11 and the second arc-shaped area 312.

[0145] As mentioned above, the first functional layer 2 plays a role of anti-glare, but can cause the problem of flash point. For the curved screen mobile phone, the pixel units in the second arc-shaped area 312 of the display body 31 will be deformed with the bending of the second arc-shaped area 312, which causes the area of the flash point caused by the light deflection of the second arc-shaped area 312 to become larger, that is, it can be understood that the flash point problem of the curved screen mobile phone is more obvious. By arranging the second functional layer 4 between the first arc-shaped area 11 and the second arc-shaped area 312, the flash point problem of the curved screen mobile phone described above can be solved, thereby improving the use experience of the curved screen mobile phone, and the principle has been described above, which will not be repeated here.

[0146] Meanwhile, the curved-screen mobile phone also has a "green edge" problem, that is, a user can see a green light from the edge (i.e., the arc-shaped area of the curved screen) of the curved-screen mobile phone from a certain angle, which is caused by the optical chromatic aberration of the light emitted by the second arc-shaped area 312 of the display body 31 on the first arc-shaped area 11 of the cover plate 1. By arranging the second functional layer 4 between the first arc-shaped area 11 and the second arc-shaped area 312, the light emitted at the edge of the display body 31 is first dispersed before passing through the cover plate 1, reducing the intensity of the light. When the light again deviates on the cover plate as described above, the user will hardly see obvious green light at the edge of the mobile phone, improving the above-mentioned "green edge" problem and being beneficial to improving the user experience.

[0147] As shown in FIG. 21, FIG. 21 is a schematic diagram of an electronic device 100 in another embodiment of the present application, in which the dashed part represents a fold line on the display module 10. The electronic device 100 can be a foldable mobile phone, that is, the display module 10 can be a flexible display module 10.

[0148] As shown in FIG. 22, FIG. 22 is an exploded schematic diagram of a flexible display module 10 in an embodiment of the present application, in which the flexible display module 10 is in a folded state. In the flexible display module 10, both the cover plate 1 and the display panel 3 have a certain flexibility, so that the flexible display module 10 as a whole can be unfolded and folded. The cover plate 1 includes a first folding area 12, and the display body includes a second folding area 313. When the flexible display module 10 is in a folded state, both the first folding area 12 and the second folding area 313 are in a folded state close to "U" shape.

[0149] The first folding area 12 is provided with a first functional layer 2. Part of the second functional layer 4 is located between the first folding area 12 and the second folding area 313, that is, the second functional layer 4 is arranged between the first folding area 12 and the second folding area 313. Specifically, the glass plate or plastic plate serving as the carrier of the second functional layer 4 also has a certain flexibility, which can be unfolded and folded together with the cover plate 1 and the display panel 3.

[0150] Referring to FIGS. 21 and 22 simultaneously, the electronic device 100 is repeatedly unfolded and folded in use, which causes the first folding area 12 of the cover plate 1 to be prone to creases, which affect the display effect of the flexible display module 10. As mentioned above, the first folding area 12 is provided with the first functional layer 2 having an anti-glare effect, so that external light is diffusely reflected at the creases of the first folding area 12 rather than specularly emitted, thereby helping to weaken the creases in visual effect, that is, the user will not see obvious traces of creases on the display module 10 in use. At the same time, the first folding area 12 and the second folding area 313 have the second functional layer 4 therebetween, the second functional layer 4 has an anti-glare effect, which improves the display effect at the creases of the display module 10, so that the electronic device 100 can provide the user with a clear and comfortable display screen, so as to improve the use experience of the electronic device 100.

[0151] In some other embodiments, the electronic device 100 can also be a tablet computer, a desktop computer, a smart watch, or other electronic products.

[0152] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display module, characterized in that, include: A cover plate having a first functional layer, the first functional layer comprising a plurality of first microstructures; The display panel is connected to the side of the cover plate opposite to the first functional layer. The display panel includes a display body, and a second functional layer is disposed between the display body and the cover plate. The second functional layer includes a plurality of second microstructures, and the radial dimension of the second microstructure is smaller than the radial dimension of the first microstructure.

2. The display module according to claim 1, characterized in that, The radial dimension D1 of the first microstructure is 15 μm to 40 μm; The haze of the first functional layer is 20% to 40%.

3. The display module according to claim 1, characterized in that, The cover plate has a first surface, and the first microstructure is located on the first surface; The first microstructure protrudes toward the side opposite to the display panel, or the first microstructure is recessed toward the side closer to the display panel.

4. The display module according to claim 1, characterized in that, The display body includes multiple pixel units, and each pixel unit includes sub-pixels; Along the thickness direction of the display module, the projected area of ​​one of the second microstructures is smaller than the projected area of ​​one of the sub-pixels.

5. The display module according to claim 4, characterized in that, Along the thickness direction of the display module, the projections of multiple second microstructures are located within the projection of the same sub-pixel.

6. The display module according to claim 1, characterized in that, The radial dimension D2 of the second microstructure is 1µm to 10µm; The haze of the second functional layer is 1% to 15%.

7. The display module according to any one of claims 1 to 6, characterized in that, The display module includes a substrate, which is connected between the cover plate and the display panel. The second functional layer is disposed on the surface of the substrate facing the cover plate, or; The second functional layer is disposed on the surface of the substrate facing the display panel.

8. The display module according to claim 7, characterized in that, The substrate is a glass plate; The second microstructure protrudes or is recessed relative to the surface of the glass plate.

9. The display module according to claim 7, characterized in that, The substrate is a plastic sheet; The second microstructure protrudes or is recessed relative to the surface of the plastic plate.

10. The display module according to any one of claims 1 to 6, characterized in that, The display panel includes a polarizer, which is connected to the display body on the side near the cover plate; A protective film is provided on the side of the polarizer facing the cover plate; The second functional layer is disposed on the protective film.

11. The display module according to any one of claims 1 to 6, characterized in that, The display panel includes a polarizer, which is connected to the display body on the side near the cover plate; The second functional layer is disposed on the polarizer.

12. The display module according to claim 11, characterized in that, The polarizer includes a polarizing layer and a first protective layer located on the side of the polarizing layer near the cover plate; The second functional layer is disposed on the surface of the first protective layer, wherein the second microstructure protrudes or is recessed relative to the surface of the first protective layer.

13. The display module according to claim 11, characterized in that, The polarizer includes a polarizing layer and a first protective layer located on the side of the polarizing layer near the cover plate; The second functional layer is disposed within the first protective layer, wherein the second microstructure is a transparent particle.

14. The display module according to claim 11, characterized in that, The polarizer includes a polarizing layer and a second protective layer located on the side of the polarizing layer near the display body; The second functional layer is disposed on the surface of the second protective layer, wherein the second microstructure protrudes or is recessed relative to the surface of the second protective layer.

15. The display module according to claim 11, characterized in that, The polarizer includes a polarizing layer and a second protective layer located on the side of the polarizing layer near the display body; The second functional layer is disposed within the second protective layer, wherein the second microstructure is a transparent particle.

16. The display module according to any one of claims 1 to 6, characterized in that, The cover plate and the display panel are connected by an adhesive; The second functional layer is located within the colloid, wherein the second microstructure is a transparent particle.

17. The display module according to any one of claims 1 to 6, characterized in that, The display panel includes a polarizer; The polarizer includes a polarizing layer and a first protective layer located on the side of the polarizing layer near the cover plate; The polarizing layer is connected to the first protective layer via a colloid; The second functional layer is located within the colloid, wherein the second microstructure is a transparent particle; Alternatively, the polarizer includes a polarizing layer and a second protective layer located on the side of the polarizing layer closer to the display body; The polarizing layer is connected to the first protective layer via a colloid; The second functional layer is located within the colloid, wherein the second microstructure is a transparent particle.

18. The display module according to any one of claims 1 to 17, characterized in that, The display module is a flexible display module, wherein the cover plate includes a first folding area, and the first folding area is provided with the first functional layer; The display body includes a second folding area, and a second functional layer is provided between the first folding area and the second folding area.

19. The display module according to any one of claims 1 to 17, characterized in that, The display module is a curved display module, wherein the cover plate includes a first arc-shaped area, and the first arc-shaped area is provided with the first functional layer; The display body includes a second arc-shaped region, and the second functional layer is located between the first arc-shaped region and the second arc-shaped region.

20. An electronic device, characterized in that, include: case; The display module is mounted on the housing, and the display module is the display module according to any one of claims 1 to 19.

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