Display module and display device

Abstract

The application provides a display module and a display device. The display module has a first display area and a second display area, and comprises: a substrate; a pixel definition layer, which is formed with a first pixel opening and a second pixel opening, the first pixel opening and the second pixel opening are respectively located in the first display area and the second display area, the first pixel opening is larger than the second pixel opening, and the first pixel opening and the second pixel opening are respectively provided with a first light emitting unit and a second light emitting unit; and a first light adjusting layer, which is arranged around the first pixel opening and is formed with a plurality of first protrusions and / or first grooves arranged at intervals. The display module has good brightness uniformity in different display areas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, and in particular to a display module and a display device. BACKGROUND

[0002] With the continuous development of science and technology, more and more display devices are widely used in people's daily life and work, which brings great convenience to people's daily life and work and becomes an indispensable important tool for people today.

[0003] The main component of the display device is the display module, wherein the display module has a plurality of sub-pixels, and the sub-pixels are used for image display. In the existing display module, there is a problem of uneven brightness in different areas. SUMMARY

[0004] The display module and the display device provided by the present application aim to solve the problem of uneven brightness in different areas in the existing display module.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a display module. The display module has a first display area and a second display area, and the display module comprises: a substrate; a pixel definition layer, which is formed with a first pixel opening and a second pixel opening, the first pixel opening and the second pixel opening are located in the first display area and the second display area respectively, the first pixel opening is larger than the second pixel opening, and the first pixel opening and the second pixel opening are respectively provided with a first light emitting unit and a second light emitting unit; a first light adjusting layer, which is arranged around the first pixel opening, and the first light adjusting layer is formed with a plurality of first protrusions and / or first grooves arranged at intervals.

[0006] Among them, the first light adjusting layer comprises the first protrusions and the first grooves arranged alternately along the circumferential direction, and the ratio of the size of the first protrusion along the circumferential direction of the first light adjusting layer to the size of the first groove along the circumferential direction of the first light adjusting layer is 2.5-6.

[0007] Among them, the size of the first protrusion along the circumferential direction of the first light adjusting layer is not less than 4 microns; and / or, the size of the first groove along the circumferential direction of the first light adjusting layer is not less than 1.5 microns.

[0008] Among them, the first light adjusting layer is arranged in a continuous ring shape; or the first light adjusting layer is arranged as support columns arranged at intervals along the circumferential direction of the corresponding first pixel opening, the support columns constitute the first protrusions, and the first grooves are formed between adjacent support columns.

[0009] The second light-adjusting layer is arranged around the second pixel opening, and the second light-adjusting layer is formed with a plurality of second protrusions and / or second grooves arranged at intervals.

[0010] The first protrusions and the first grooves are arranged alternately along the circumference, and the second light-adjusting layer comprises the second protrusions and the second grooves arranged alternately along the circumference; the height of the first protrusions is higher than that of the second protrusions, and the depth of the first grooves is greater than that of the second grooves.

[0011] The interval between the adjacent two first protrusions is smaller than the interval between the adjacent two second protrusions, and the interval between the adjacent two first grooves is greater than the interval between the adjacent two second grooves.

[0012] The distance between the first light-adjusting layer and the corresponding first pixel opening is smaller than the distance between the second light-adjusting layer and the corresponding second pixel opening.

[0013] The distance between the first light-adjusting layer and the corresponding first pixel opening is not less than 5 microns, and / or the distance between the second light-adjusting layer and the corresponding second pixel opening is not less than 5 microns.

[0014] To solve the above technical problems, another technical solution adopted by the present application is to provide a display device. The display device comprises a display module and an electronic element; wherein the display module is the display module described above.

[0015] The display module and the display device provided by the embodiments of the present application have the following advantages compared with the prior art: the display module makes the first light-adjusting layer formed with a plurality of first protrusions and / or first grooves arranged at intervals, so as to increase the stray light of the light emitted from the first pixel opening at the first light-adjusting layer through the first protrusions and / or the first grooves, adjust the light flux in different directions, adjust the intensity of the light emitted from the first pixel opening at an angle greater than the preset angle, so that the intensity difference of the light emitted at an angle greater than the preset angle in the first display area and the second display area is less than a threshold value, and the brightness uniformity of the first display area and the second display area is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings, wherein:

[0017] Figure 1A structural schematic diagram of a display module provided by an embodiment of the present application;

[0018] Figure 2 A top view of the first light-adjusting layer arranged around the first pixel opening;

[0019] Figure 3 A schematic diagram of light emitted from the first pixel opening;

[0020] Figure 4 A schematic diagram of the alternate distribution of the first protrusions and the first grooves in the first light-adjusting layer provided by an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the alternate distribution of the first protrusions and the first grooves in the first light-adjusting layer provided by another embodiment of the present application;

[0022] Figure 6 A schematic diagram of the alternate distribution of the first protrusions and the first grooves in the first light-adjusting layer provided by yet another embodiment of the present application;

[0023] Figure 7 A top view of the second light-adjusting layer arranged around the second pixel opening;

[0024] Figure 8 A schematic diagram of light emitted from the second pixel opening.

[0025] Explanation of reference numerals

[0026] Substrate 11; pixel definition layer 12; first pixel opening 121; second pixel opening 122; first light-emitting unit 13a; second light-emitting unit 13b; first light-adjusting layer 14; first protrusion 141; first groove 142; second light-adjusting layer 15; second protrusion 151; second groove 152; support column 16; first display area A1; second display area A2. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the scope of protection of the present application.

[0028] The terms "first", "second", "third", etc. in the present application are only for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0029] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from among a great variety of embodiments that can be made.

[0030] At present, in the under-screen camera technology, to improve the transmittance of the camera area (secondary screen area) and improve the diffraction of the camera area, the opening of the secondary screen area is reduced and the shape is adjusted to be circular, thereby causing a large difference between the pixel openings of the primary and secondary screens. Specifically, the opening of the primary screen display area is larger, and the opening of the secondary screen display area is smaller, which causes a significant difference in brightness of the primary and secondary screens at different viewing angles. For example, at a large viewing angle (greater than 80°), the difference in brightness of the primary and secondary screens is more obvious.

[0031] Embodiments of the present application provide a display module capable of adjusting the brightness of the primary and secondary screen display areas, so that the brightness difference between the primary and secondary screens is within a threshold range, thereby effectively ensuring the consistency of the brightness of the primary and secondary screen display areas at different viewing angles.

[0032] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] Please refer to Figure 1 , Figure 1A structural schematic diagram of a display module provided by an embodiment of the present application is shown in the figure. In this embodiment, a display module is provided, which has a first display area A1 and a second display area A2. The first display area A1 can correspond to the main screen display area of a display device, and the second display area A2 can correspond to the auxiliary screen display area of the display device. The display module includes a substrate 11, a pixel definition layer 12, a plurality of first light-emitting units 13a, a plurality of second light-emitting units 13b, and a first light modulation layer 14.

[0034] The substrate 11 can be a thin film transistor substrate. The thin film transistor substrate includes a substrate and a plurality of thin film transistors (TFT) disposed on the substrate. The periphery of the thin film transistor, that is, the non-display area, is also provided with a thin film transistor peripheral trace. The substrate can be formed of any suitable insulating material with flexibility, for example, a polymer material such as polyimide (PI), polycarbonate (PC), polyether sulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or glass fiber reinforced plastic (FRP). The substrate can be transparent, translucent, or opaque. The thin film transistor includes a gate, a source, a drain, an active layer, a gate insulating layer between the active layer and the gate, an interlayer insulating layer between the gate and the source and the drain, a passivation layer on the side of the source and the drain away from the gate, and a planarization layer on the side of the passivation layer away from the source and the drain, wherein the planarization layer can be an organic layer such as acrylic, polyimide, or benzocycloalkene.

[0035] The pixel definition layer 12 can be formed on one side of the substrate 11 by evaporation or deposition of an organic material such as polyimide (PI), polyamide, benzocycloalkene (BCB), acrylic resin, or phenolic resin. In specific embodiments, the pixel definition layer 12 is formed with a plurality of first pixel openings 121 and a plurality of second pixel openings 122. The plurality of first pixel openings 121 and the plurality of second pixel openings 122 are respectively located in the first display area A1 and the second display area A2. The first pixel openings 121 are larger than the second pixel openings 122, and the first pixel openings 121 can be square or other rectangular shapes, and the second pixel openings 122 can be circular. Specifically, the specific structure and function of the pixel definition layer 12 are the same as or similar to those of the pixel definition layer in existing display modules, and the same or similar technical effects can be achieved. For details, please refer to the prior art, which will not be described here.

[0036] A plurality of first light-emitting units 13a are respectively disposed corresponding to a plurality of first pixel openings 121 in the first display area A1, and are used for emitting light; a plurality of second light-emitting units 13b are respectively disposed corresponding to a plurality of second pixel openings 122 in the second display area A2, and are used for emitting light. Each pixel opening corresponds to one light-emitting unit. The first light-emitting unit 13a and the second light-emitting unit 13b specifically include an anode disposed on the surface of the substrate 11, and a light-emitting layer, a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer, and a cathode sequentially disposed on the anode away from the surface of the substrate 11. The specific structure of the first light-emitting unit 13a and the second light-emitting unit 13b is the same as or similar to the specific structure and function of the light-emitting units or pixel units used for emitting light in existing display modules, and can achieve the same or similar technical effects. For details, please refer to the prior art, which will not be elaborated here.

[0037] Those skilled in the art will understand that, for the first light-emitting unit 13a and the second light-emitting unit 13b with the same luminous intensity, the larger the corresponding pixel opening, the greater the luminous flux of the light emitted from the corresponding display area; conversely, the smaller the corresponding pixel opening, the smaller the luminous flux of the light emitted from the corresponding display area. Therefore, when the first pixel opening 121 is larger than the second pixel opening 122, the luminous flux of the light emitted by the first light-emitting unit 13a, which is positioned corresponding to the first pixel opening 121, is greater than the luminous flux of the light emitted by the second light-emitting unit 13b, which is positioned corresponding to the second pixel opening 122, resulting in poor brightness consistency between the first display area A1 and the second display area A2 at different viewing angles.

[0038] To reduce the difference in luminous flux between the light emitted from the first pixel opening 121 and the light emitted from the second pixel opening 122, and to ensure that the difference in light intensity between the first display area A1 and the second display area A2 at angles greater than a preset value is less than a threshold, i.e., to ensure the uniformity of brightness of the first display area A1 and the second display area A2 under different viewing angles, please refer to [link to relevant documentation]. Figures 1 to 3 ,in, Figure 2 A top view of the first dimming layer 14 surrounding the first pixel opening 121; Figure 3 This is a schematic diagram of light emitted from the first pixel opening 121. In this embodiment, a first dimming layer 14 is further provided around the first pixel opening 121 to reflect or refract some of the light emitted by the first light-emitting unit 13a, thereby reducing the intensity of the light emitted from the first pixel opening 121. This ensures that the intensity difference between the light emitted from the first display area A1 and the second display area A2 at an angle greater than a preset angle is less than a threshold. Simultaneously, the first dimming layer 14 can adjust the directional consistency of the light emitted from the first pixel opening 121. The preset angle refers to the viewing angle, which can be no less than 80°. The threshold is less than 5%.

[0039] Among them, such as Figure 2As shown, the first light-adjusting layer 14 specifically has a closed loop shape, i.e., the first light-adjusting layer 14 is arranged around the periphery of the first pixel opening 121 in one round, and the first light-adjusting layer 14 has a plurality of first protrusions 141 and / or first grooves 142 arranged at intervals along the circumferential direction of the first light-adjusting layer 14, i.e., the surface of the first light-adjusting layer 14 has a concave-convex shape. The plurality of first protrusions 141 and / or first grooves 142 are used to adjust the intensity of the light emitted from the first pixel opening 121 at an angle greater than the preset angle, so that the intensity difference of the light emitted at an angle greater than the preset angle in the first display area A1 and the second display area A2 is less than a threshold value.

[0040] In an embodiment, referring to Figures 4 to 6 , Figure 4 a schematic view of the first protrusions and the first grooves in the first light-adjusting layer according to an embodiment of the present application is provided; Figure 5 a schematic view of the first protrusions and the first grooves in the first light-adjusting layer according to another embodiment of the present application is provided; Figure 6 a schematic view of the first protrusions and the first grooves in the first light-adjusting layer according to still another embodiment of the present application is provided. The first light-adjusting layer 14 includes a plurality of first protrusions 141 and a plurality of first grooves 142 arranged alternately along the circumferential direction. By arranging a plurality of first protrusions 141 and first grooves 142 on the light path film layer, the stray light of the light emitted from the first pixel opening 121 at the first light-adjusting layer 14 can be increased, so as to adjust the light flux in different directions, to weaken the intensity of the light emitted from the first pixel opening 121, and reduce the intensity difference of the light emitted at an angle greater than the preset angle in the first display area A1 and the second display area A2.

[0041] In an embodiment, as Figure 4As shown, a plurality of first protrusions 141 are distributed at intervals, and two adjacent first protrusions 141 define a first groove 142. It can be understood that, in this embodiment, the height h1 of the first protrusion 141 is the depth d1 of the first groove 142. In a specific embodiment, the first dimming layer 14 is configured as a plurality of support pillars 16 arranged at intervals along the circumference of the corresponding first pixel opening 121. The support pillars 16 constitute the first protrusions 141, and the first groove 142 is formed between adjacent support pillars 16. The plurality of support pillars 16 are disposed on the side surface of the pixel definition layer 12 facing away from the substrate 11, and are used to support the mask. This not only avoids the mask from scratching the pixel definition layer 12 during the vapor deposition process of the first light-emitting unit 13a and / or the second light-emitting unit 13b, but also allows for adjustment of the intensity of light emitted from the first pixel opening 121 and / or the second pixel, without the need for an additional mask process, thus not increasing the complexity of the process; at the same time, it does not increase the cost. Of course, the second dimming layer 15 can also be configured as a plurality of support pillars 16; in addition, the first dimming layer 14 and / or the second dimming layer 15 can be disposed on the surface of the support pillars 16; in this case, the first dimming layer 14 and / or the second dimming layer 15 are distributed in an intermittent manner.

[0042] In another embodiment, such as Figure 5 As shown, the first dimming layer 14 is arranged in a continuous ring shape. Specifically, a plurality of first protrusions 141 are interconnected, and the concave structure defined at the connection point of two first protrusions 141 forms a first groove 142. Of course, in other embodiments, such as Figure 6 As shown, the first dimming layer 14 and / or the second dimming layer 15 include a dimming layer body, the dimming layer body having a first surface and a second surface facing away from each other; the first surface of the dimming layer body is recessed towards the second surface to form a first groove 142; a first protrusion 141 is disposed on the first surface of the dimming layer body and spaced apart from the first groove 142. Of course, as... Figure 6 As shown, the stepped structures on both sides of the first groove 142 can both be used as the first protrusion 141; the entire concave structure defined by the connection of the stepped first protrusion 141 is the first groove 142, or only the concave structure defined by the bottom structure of the stepped first protrusion 141 is the first groove 142.

[0043] Specifically, a ratio of a size a1 of the first protrusion 141 along the circumferential direction of the first light-adjusting layer 14 to a size b1 of the first groove 142 along the circumferential direction of the first light-adjusting layer 14 is 2.5-6. In this way, the reflection and / or refraction effect of the first light-adjusting layer 14 on adjusting the intensity of the light emitted at a greater than preset angle from the first pixel opening 121 can be effectively ensured. The size a1 of the first protrusion 141 along the circumferential direction of the first light-adjusting layer 14 is specifically not less than 4 microns, and the size b1 of the first groove 142 along the circumferential direction of the first light-adjusting layer 14 is specifically not less than 1.5 microns.

[0044] In an embodiment, referring to Figure 1 、 Figure 7 and Figure 8 , wherein, Figure 7 is a top view of the second light-adjusting layer 15 arranged around the second pixel opening 122; Figure 8 is a schematic view of the light emitted from the second pixel opening 122; the display module further includes the second light-adjusting layer 15 arranged around the second pixel opening 122, and the second light-adjusting layer 15 is used to adjust the intensity of the light emitted at a greater than preset angle from the second pixel opening 122, so that the intensity difference of the light emitted at a greater than preset angle in the first display area A1 and the second display area A2 is less than a threshold value. In a specific embodiment, the refractive index of the first light-adjusting layer 14 and / or the second light-adjusting layer 15 can be set according to actual needs.

[0045] In a specific embodiment, as shown in Figure 7 , the second light-adjusting layer 15 can also be in a closed loop shape, and compared with Figure 3 and Figure 8 , the distance c1 between the first light-adjusting layer 14 and the first pixel opening 121 is less than the distance c2 between the second light-adjusting layer 15 and the second pixel opening 122; that is, the first light-adjusting layer 14 is arranged closer to the first pixel opening 121; in this way, the first light-adjusting layer 14 blocks more light beams of the first light-emitting unit 13a than the second light-adjusting layer 15 blocks light beams of the second light-emitting unit 13a, so that the reduction degree of the luminous flux of the light emitted at a greater than preset angle in the first display area A1 is greater than the reduction degree of the luminous flux of the light emitted at a greater than preset angle in the second display area A2, and the intensity difference of the first display area A1 and the second display area A2 can be reduced, and the uniformity of the light intensity of the two display areas is effectively improved.

[0046] Specifically, the distance c1 between the first light-adjusting layer 14 and the first pixel opening 121 can be not less than 5 microns, and the distance c2 between the second light-adjusting layer 15 and the second pixel opening 122 can be not less than 5 microns.

[0047] In a specific embodiment, as shown in Figure 7As shown, a plurality of second protrusions 151 and second grooves 152 are also formed at intervals in the circumferential direction on the second dimming layer 15. The second protrusions 151 and second grooves 152 can be alternately arranged in sequence along the circumferential direction to increase the stray light at the second dimming layer 15 of the light emitted from the second pixel opening 122, so as to adjust the light flux in different directions, thereby adjusting the intensity of the light emitted from the second pixel opening 122 at an angle greater than a preset angle. The specific structure and function of the second protrusions 151 and the second grooves 152, as well as their size ratio and distribution, are the same or similar to those of the first protrusions 141 and the first grooves 141, and can achieve the same or similar technical effects. For details, please refer to the above text, which will not be repeated here.

[0048] Specifically, in comparison Figure 3 and Figure 8 The height h1 of the first protrusion 141 is higher than the height h2 of the second protrusion 151, or the depth d1 of the first groove 142 is greater than the depth of the second groove 152; or the distance between two adjacent first protrusions 141 (i.e., b1) is less than the distance between two adjacent second protrusions 151 (i.e., b2); or the distance between two adjacent first grooves 142 (i.e., a1) is greater than the distance between two adjacent second grooves 152 (i.e., a2); so as to effectively ensure that the reflection or refractive index of the light emitted by the first light-emitting unit 13a by the first dimming layer 14 is greater than the reflection or refractive index of the light emitted by the second light-emitting unit 13b by the second dimming layer 15, thereby adjusting the intensity of the light emitted from the first pixel opening 121 and the second pixel opening 122, so as to make the display brightness of the first display area A1 and the second display area A2 as similar as possible.

[0049] In a specific embodiment, to avoid the first dimming layer 14 affecting the transmittance of the first light-emitting unit 13a, and / or to avoid the second dimming layer 15 affecting the transmittance of the second light-emitting unit 13b, the first dimming layer 14 and / or the second dimming layer 15 can be disposed in the non-transparent film layer of the display module. Furthermore, the first dimming layer 14 and / or the second dimming layer 15 can be prepared using organic adhesive, with slits designed in the recessed areas. During the manufacturing process, before the organic adhesive cures, it is fluid, and the height of the organic adhesive at the slits differs from that at the non-slit areas. After baking, the uneven structure of the first dimming layer 14 and / or the second dimming layer 15 is formed. It is understood that the material of the first dimming layer 14 and / or the second dimming layer 15 in this application can be organic adhesive; specifically, the first dimming layer 14 and / or the second dimming layer 15 can be a photosensitive organic film layer.

[0050] Of course, the display module also includes other structures of existing display modules, which can be found in the prior art and can achieve the same or similar technical effects, and will not be elaborated here.

[0051] The display module described above, by setting the first light modulation layer 14 and / or the second light modulation layer 15, the light emitted from the pixels of different shapes and different sizes passes through the first light modulation layer 14 and / or the second light modulation layer 15 modulation layer, and the light path direction changes consistently. At the same time, the concave-convex structure is arranged on the first light modulation layer 14 and / or the second light modulation layer 15, and the size of the concave-convex structure is adjusted according to the position of the pixel opening, so as to match the luminous flux of large viewing angle under different opening rates, so that the brightness of the first display area A1 and the second display area A2 corresponding to the first display opening and the second pixel opening 122 of different sizes is more close under large viewing angle (greater than 80°). In addition, by arranging the first light modulation layer 14 and / or the second light modulation layer 15 above the non-light transmission film layer, the influence of the first light modulation layer 14 and / or the second light modulation layer 15 on the light transmittance is avoided, thereby further ensuring the consistency of the brightness of the light of the two display areas.

[0052] The display module provided in the embodiment, the display module is arranged with the first light modulation layer 14 around the first pixel opening 121, and the first light modulation layer 14 includes a plurality of first protrusions 141 and / or first grooves 142 arranged alternately along the circumference of the first pixel opening 121, so as to increase the stray light of the light emitted from the first pixel opening 121 at the first light modulation layer 14 through the plurality of first protrusions 141 and / or first grooves 142, adjust the luminous flux in different directions, thereby adjusting the intensity of the light emitted from the first pixel opening 121 at greater than a preset angle, so that the intensity difference of the light emitted at greater than a preset angle in the first display area A1 and the second display area A2 is less than a threshold value, thereby effectively improving the brightness uniformity of the first display area A1 and the second display area A2.

[0053] In the embodiment, a display device is also provided, which can be a mobile phone, a computer, a television, etc. The display device includes electronic elements and the display module provided in the above embodiments. The electronic elements can be diodes, resistors, inductors, etc.

[0054] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display module having a first display area and a second display area, characterized in that, The display module includes: substrate; A pixel definition layer is formed with a first pixel opening and a second pixel opening. The first pixel opening and the second pixel opening are located in the first display area and the second display area, respectively. The first pixel opening is larger than the second pixel opening. A first light-emitting unit and a second light-emitting unit are respectively disposed in the first pixel opening and the second pixel opening. A first dimming layer is disposed around the first pixel opening and located on the non-transparent film layer of the display module; the first dimming layer is formed with a plurality of first protrusions and / or first grooves spaced apart; the first dimming layer is configured as support pillars arranged sequentially at intervals along the circumference of the corresponding first pixel opening, the support pillars forming the first protrusions, and the first grooves being formed between adjacent support pillars; wherein, the support pillars are disposed on the side surface of the pixel definition layer opposite to the substrate, for supporting the mask plate.

2. The display module according to claim 1, characterized in that, The first dimming layer includes the first protrusion and the first groove arranged alternately along the circumferential direction, and the ratio of the dimension of the first protrusion along the circumferential direction of the first dimming layer to the dimension of the first groove along the circumferential direction of the first dimming layer is 2.5-6.

3. The display module according to claim 1, characterized in that, The first protrusion has a dimension of not less than 4 micrometers along the circumferential direction of the first dimming layer; and / or, The dimension of the first groove along the circumferential direction of the first dimming layer is not less than 1.5 micrometers.

4. The display module according to claim 1, characterized in that, Also includes: A second dimming layer is disposed around the opening of the second pixel, and the second dimming layer is formed with a plurality of second protrusions and / or second grooves spaced apart.

5. The display module according to claim 4, characterized in that, The first dimming layer includes a first protrusion and a first groove arranged alternately in a circumferential direction, and the second dimming layer includes a second protrusion and a second groove arranged alternately in a circumferential direction; The height of the first protrusion is greater than the height of the second protrusion, and the depth of the first groove is greater than the depth of the second groove.

6. The display module according to claim 5, characterized in that, The distance between two adjacent first protrusions is smaller than the distance between two adjacent second protrusions; The distance between two adjacent first grooves is greater than the distance between two adjacent second grooves.

7. The display module according to claim 4, characterized in that, The distance between the first dimming layer and the corresponding first pixel opening is less than the distance between the second dimming layer and the corresponding second pixel opening.

8. The display module according to claim 4, characterized in that, The distance between the first dimming layer and the corresponding first pixel opening is not less than 5 micrometers; And / or, the distance between the second dimming layer and the corresponding second pixel opening is not less than 5 micrometers.

9. A display device, characterized in that, Includes the display module as described in any one of claims 1-8.

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