Display module and display apparatus

Abstract

A display module (10) and a display apparatus. The display module (10) comprises a display panel (101), a color filter layer (102), and a dimming structure (103). Since a refractive index of a material of the dimming structure (103) differs from a refractive index of a material of filter units (1022) in the color filter layer (102), the difference in the refractive indexes of the materials of the dimming structure (103) and the filter unit (1022) allows for light emitted by light-emitting units (10121) to be reflected to a light-emitting region, thereby improving luminous efficiency of the light-emitting units (10121), and thus improving a display effect of the display module (10). A thickness of the dimming structure (103) located at a periphery of the light-emitting region of the various light-emitting units (10121) can be designed according to dimensions of the light-emitting regions of the various light-emitting units (10121) of the display panel (101), thereby ensuring the light-emitting effect and luminous efficiency of the light-emitting units (10121).

Description

Display module and display device Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] The display panel in the display module includes a substrate and light-emitting units located in the display area of ​​the substrate. The light-emitting units emit light, thereby enabling the display panel to display. Summary of the Invention

[0003] This application provides a display module and a display device, the technical solution of which is as follows:

[0004] On one hand, a display module is provided, the display module comprising:

[0005] The display panel includes a substrate and a light-emitting device layer located on one side of the substrate. The substrate includes a display area, and the light-emitting device layer includes a plurality of light-emitting units, all of which are located in the display area. The plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit.

[0006] A color filter layer is located on the side of the light-emitting device layer away from the substrate. The color filter layer includes a black matrix and a plurality of filter units corresponding to the plurality of light-emitting units. The black matrix includes a plurality of black matrix openings corresponding to the plurality of light-emitting units. The orthographic projection of the filter unit on the substrate is at least located within the orthographic projection of the black matrix opening on the substrate, and the orthographic projection of the filter unit on the substrate covers the orthographic projection of the light-emitting area of ​​the light-emitting unit on the substrate.

[0007] And, a dimming structure located on the side of the light-emitting device layer away from the substrate, wherein the refractive index of the material of the dimming structure is different from that of the material of the filter unit, and at least a portion of the surfaces of the filter unit and the dimming structure are in contact with the light-emitting area of ​​the light-emitting unit;

[0008] The dimming structure includes a first portion surrounding the light-emitting area of ​​the first light-emitting unit and a second portion surrounding the light-emitting area of ​​the second light-emitting unit, wherein the thickness of the first portion is greater than the thickness of the second portion.

[0009] Optionally, the area of ​​the light-emitting region of the first light-emitting unit projected onto the substrate is larger than the area of ​​the light-emitting region of the second light-emitting unit projected onto the substrate.

[0010] Optionally, the dimming structure includes a first sub-dimming layer and a second sub-dimming layer stacked along a direction away from the substrate. The orthographic projection of the second sub-dimming layer on the substrate is located around the orthographic projection of the light-emitting area of ​​the first light-emitting unit on the substrate. The first sub-dimming layer includes a plurality of first sub-dimming openings corresponding to the plurality of light-emitting units. The second sub-dimming layer includes a second sub-dimming opening corresponding to the first light-emitting unit. The orthographic projection of the second sub-dimming opening on the substrate at least partially overlaps with the orthographic projection of the first sub-dimming opening corresponding to the first light-emitting unit on the substrate.

[0011] The plurality of filter units include: a first filter unit corresponding to the first light-emitting unit, and a second filter unit corresponding to the second light-emitting unit, wherein the first filter unit is located within the second sub-dimming opening and the first sub-dimming opening corresponding to the first light-emitting unit, and the second filter unit is located within the first sub-dimming opening corresponding to the second light-emitting unit;

[0012] The first part includes the second sub-dimming layer and a portion of the first sub-dimming layer located on the side of the second sub-dimming layer near the substrate. The thickness of the first part is the sum of the thicknesses of the first sub-dimming layer and the second sub-dimming layer. The second part includes a portion of the first sub-dimming layer whose orthographic projections do not overlap with those of the second sub-dimming layer. The thickness of the second part is the thickness of the first sub-dimming layer.

[0013] Optionally, the orthographic projection of the black matrix on the substrate is located within the orthographic projection of the first sub-dimming layer on the substrate, and the orthographic projection of the black matrix opening on the substrate covers the orthographic projections of the first sub-dimming opening and the second sub-dimming opening on the substrate.

[0014] The first sub-dimming layer includes a target portion near the light-emitting area of ​​the first light-emitting unit. The orthographic projection of the target portion on the substrate overlaps with the orthographic projection of the black matrix opening corresponding to the first light-emitting unit on the substrate. The second sub-dimming layer is located at least on the side of the first sub-dimming layer away from the substrate.

[0015] Optionally, the black matrix is ​​located on the side of the first sub-dimming layer away from the substrate, and the opening of the black matrix exposes a portion of the light-emitting area in the first sub-dimming layer near the light-emitting unit.

[0016] Optionally, the second sub-dimming layer is located on the side of the black matrix near the light-emitting area of ​​the first light-emitting unit, and the second sub-dimming layer and the black matrix are spaced apart or in contact.

[0017] Optionally, the first filter unit covers the second sub-dimming layer and also covers a portion of the black matrix;

[0018] The second filter unit covers a portion of the black matrix.

[0019] Optionally, the black matrix is ​​located on the side of the first sub-dimming layer near the substrate, and the first sub-dimming layer covers the black matrix and a portion of the opening of the black matrix.

[0020] Optionally, the first filter unit covers the second sub-dimming layer, or the first filter unit exposes a portion of the light-emitting area in the second sub-dimming layer that is away from the first light-emitting unit.

[0021] Optionally, the first filter unit is also located on the side of the first sub-slimming layer and the second sub-slimming layer away from the substrate, and the second filter unit is also located on the side of the first sub-slimming layer;

[0022] The black matrix is ​​located on the side of the plurality of filter units away from the substrate.

[0023] Optionally, the first filter unit covers the second sub-dimming layer, and the orthographic projection of the junction of the first filter unit and the filter unit adjacent to the first filter unit onto the substrate is located on the side of the orthographic projection of the second sub-dimming layer onto the substrate that is away from the orthographic projection of the emitting area of ​​the first emitting unit onto the substrate; or,

[0024] The first filter unit exposes a portion of the light-emitting area of ​​the second sub-dimming layer that is far from the first light-emitting unit. The filter unit adjacent to the first filter unit is also located on the side of the second sub-dimming layer that is far from the substrate. The orthographic projection of the first filter unit and the filter unit adjacent to the first filter unit on the substrate overlaps with the orthographic projection of the second sub-dimming layer on the substrate.

[0025] Optionally, the plurality of black matrix openings include: a first type of black matrix opening corresponding to the first light-emitting unit, and a second type of black matrix opening corresponding to the second light-emitting unit;

[0026] The orthographic projection of the first part on the substrate is located within the opening of the first type of black matrix, and the orthographic projection of the first part on the substrate surrounds the orthographic projection of the light-emitting area of ​​the first light-emitting unit on the substrate. The orthographic projection of the second part on the substrate is located within the opening of the second type of black matrix, and the orthographic projection of the second part on the substrate surrounds the orthographic projection of the light-emitting area of ​​the second light-emitting unit on the substrate.

[0027] The plurality of filter units include: a first filter unit corresponding to the first light-emitting unit, and a second filter unit corresponding to the second light-emitting unit; the first filter unit is located at least within the opening of the first type of black matrix and covers the first portion, and the second filter unit is located at least within the opening of the second type of black matrix and covers the second portion.

[0028] Optionally, the first part includes a first sub-dimming unit and a second sub-dimming unit stacked together, and the second part includes a third sub-dimming unit;

[0029] The first sub-dimming unit and the third sub-dimming unit are located on the same layer.

[0030] Optionally, the plurality of light-emitting units further includes a third light-emitting unit, wherein the light-emitting color of the third light-emitting unit is different from the light-emitting color of the second light-emitting unit;

[0031] The second part of the dimming structure is also located around the light-emitting area of ​​the third light-emitting unit.

[0032] Optionally, the plurality of filter units include: a third filter unit corresponding to the third light-emitting unit, wherein the third filter unit is located within a first sub-dimming opening corresponding to the third light-emitting unit.

[0033] Optionally, the first light-emitting unit is a blue light-emitting unit, and one of the second and third light-emitting units is a red light-emitting unit and the other is a green light-emitting unit.

[0034] On the other hand, a display module is provided, the display module comprising:

[0035] The display panel includes a substrate and a light-emitting device layer located on one side of the substrate. The substrate includes a display area, and the light-emitting device layer includes a plurality of light-emitting units, all of which are located in the display area.

[0036] A color filter layer is located on the side of the light-emitting device layer away from the substrate. The color filter layer includes a black matrix and a plurality of filter units corresponding to the plurality of light-emitting units. The black matrix includes a plurality of black matrix openings corresponding to the plurality of light-emitting units. The orthographic projection of the filter unit on the substrate is at least located within the orthographic projection of the black matrix opening on the substrate, and the orthographic projection of the filter unit on the substrate covers the orthographic projection of the light-emitting area of ​​the light-emitting unit on the substrate.

[0037] And, a dimming structure located on the side of the light-emitting device layer away from the substrate, wherein the refractive index of the material of the dimming structure is different from that of the material of the filter unit, and at least a portion of the surfaces of the filter unit and the dimming structure are in contact with the light-emitting area of ​​the light-emitting unit;

[0038] The dimming structure includes a plurality of dimming openings corresponding to the plurality of filter units, wherein the filter units are located within the corresponding dimming openings, and the distance between the surface of the filter unit away from the substrate and the substrate is less than or equal to the distance between the surface of the dimming structure away from the substrate and the substrate.

[0039] Optionally, the black matrix is ​​located on the side of the dimming structure away from the substrate, and the opening of the black matrix exposes a portion of the light-emitting region of the dimming structure near the light-emitting unit; or,

[0040] The black matrix is ​​located on the side of the dimming structure closest to the substrate, and the dimming structure covers the black matrix and a portion of the opening of the black matrix.

[0041] Optionally, the dimming structure includes a third sub-dimming layer and a fourth sub-dimming layer stacked in a direction away from the substrate, wherein the orthographic projections of the third sub-dimming layer and the fourth sub-dimming layer on the substrate are located around the orthographic projection of the light-emitting area of ​​any of the light-emitting units on the substrate.

[0042] The third sub-dimming layer includes a plurality of third sub-dimming openings corresponding to the plurality of light-emitting units, and the fourth sub-dimming layer includes a plurality of fourth sub-dimming openings corresponding to the plurality of light-emitting units; the filter unit is located at least within the third sub-dimming opening.

[0043] Optionally, the display panel further includes: an encapsulation film layer located on the side of the light-emitting device layer away from the substrate, the encapsulation film layer being used to encapsulate the plurality of light-emitting units;

[0044] The display module further includes: a touch film layer located on the side of the encapsulation film layer away from the substrate in the display panel, and the color filter layer and the dimming structure are both located on the side of the touch film layer away from the display panel.

[0045] Optionally, the touch film layer includes a touch buffer layer, a first touch wiring layer, a touch insulating layer and a second touch wiring layer stacked in sequence.

[0046] Both the first touch trace layer and the second touch trace layer include touch electrode lines, and the orthographic projection of the touch electrode lines on the substrate is located within the orthographic projection of the black matrix on the substrate.

[0047] Optionally, the first sub-dimming layer in the dimming structure is in contact with the touch electrode lines in the second touch wiring layer, and the first sub-dimming layer covers the touch electrode lines in the second touch wiring layer; or...

[0048] The black matrix is ​​in contact with the touch electrode lines in the second touch wiring layer, and the black matrix covers the touch electrode lines in the second touch wiring layer.

[0049] In another aspect, a display device is provided, the display device comprising: a power supply component and a display module as described above;

[0050] The power supply component is connected to the display module, and the power supply component is used to supply power to the display module. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 is a partial structural schematic diagram of a display module in the related technology;

[0053] Figure 2 is a partial structural diagram of another display module in the related technology;

[0054] Figure 3 is a partial structural schematic diagram of a display module provided in an embodiment of this application;

[0055] Figure 4 is a top view of a display panel provided in an embodiment of this application;

[0056] Figure 5 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0057] Figure 6 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0058] Figure 7 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0059] Figure 8 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0060] Figure 9 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0061] Figure 10 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0062] Figure 11 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0063] Figure 12 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0064] Figure 13 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0065] Figure 14 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0066] Figure 15 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0067] Figure 16 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0068] Figure 17 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0069] Figure 18 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0070] Figure 19 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0071] Figure 20 is a top view of a touch film layer provided in an embodiment of this application;

[0072] Figure 21 is a partial structural schematic diagram of a touch film layer provided in an embodiment of this application;

[0073] Figure 22 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0074] Figure 23 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0075] Figure 24 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0076] Figure 25 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0077] Figure 26 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0078] Figure 27 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0079] Figure 28 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0080] Figure 29 is a top view of the light-emitting areas of a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit provided in an embodiment of this application;

[0081] Figure 30 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0082] Figure 31 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0083] Figure 32 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0084] Figure 33 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0085] Figure 34 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0086] Figure 35 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0087] Figure 36 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0088] Figure 37 is a partial structural schematic diagram of another display module provided in an embodiment of this application;

[0089] Figure 38 is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0090] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0091] In related technologies, in order to improve the transmittance of the display module and make the display module thinner, a polarizer (POL) solution is adopted, for example, by replacing the polarizer set on the upper side of the light-emitting unit in the display module with a color filter on encapsulation (COE).

[0092] However, the luminous efficiency of the aforementioned display modules is low, resulting in poor display performance.

[0093] Currently, both COE (color film on encapsulation) and EES (efficiency enhancement structure) technologies can be used to improve the light emission efficiency of display panels. If COE and EES technologies can be combined, the display panel can achieve even better light emission efficiency, thereby minimizing the power consumption of the display device. Therefore, combining COE and EES technologies is a highly anticipated new integrated technology in the display field. COE technology can refer to color filter technology for depolarizing films, or technology where the color filter is located on the encapsulation layer. EES technology can refer to improving the luminous efficiency of light-emitting units by using low-refractive-index and high-refractive-index materials and utilizing the reflection between materials with different refractive indices to reflect the light from the light-emitting unit to the light-emitting area.

[0094] Figure 1 is a partial structural diagram of a display module in the related art. Referring to Figure 1, the display module 00 includes a display panel 001, a COE structure 002, and an EES structure 003 stacked sequentially. The display panel 001 includes multiple light-emitting units 0011. The COE structure 002 includes a black matrix 0021, multiple filter units 0022 corresponding to the multiple light-emitting units 0011, and a COE protective layer 0023 located on one side of the black matrix 0021 and the multiple filter units 0022. The EES structure 003 includes multiple dimming sections 0031 and a dimming layer 0032 located on one side of the multiple dimming sections 0031. The refractive index of the dimming section 0031 is less than the refractive index of the dimming layer 0032. Therefore, the light emitted by the light-emitting unit 0011 can be incident on the dimming layer 0032 after passing through the corresponding filter unit 0022, and then irradiate the dimming part 0031. The light can undergo total internal reflection at the interface between the dimming part 0031 and the dimming layer 0032, so as to reflect the light to the light-emitting area of ​​the light-emitting unit 0011 and improve the light-emitting efficiency.

[0095] However, in the scheme of Figure 1 above, since the refractive index of the dimming layer 0032 is greater than that of the dimming part 0031, the light from the external environment will also undergo total internal reflection when it is incident from the dimming layer 0032 to the dimming part 0031, which will lead to the deterioration of the reflectivity of the display module and the poor display effect of the display module.

[0096] Figure 2 is a partial structural diagram of another display module in the related art. Referring to Figure 2, the display module 00 includes a display panel 001, an EES structure 003, and a COE structure 002 stacked sequentially. The display panel 001 includes multiple light-emitting units 0011. The EES structure 003 includes multiple dimming sections 0031 and a dimming layer 0032 located on one side of the multiple dimming sections 0031. The COE structure 002 includes a black matrix 0021, multiple filter units 0022 corresponding to the multiple light-emitting units 0011, and a COE protective layer 0023 located on one side of the black matrix 0021 and the multiple filter units 0022. The refractive index of the dimming section 0031 is less than the refractive index of the dimming layer 0032. Therefore, the light emitted by the light-emitting unit 0011 can be incident on the dimming layer 0032 and then irradiate the dimming part 0031. The light can undergo total internal reflection at the interface between the dimming part 0031 and the dimming layer 0032, so that the light is reflected to the filter unit 0022 corresponding to the light-emitting unit 0011 and then emitted, thereby improving the luminous efficiency.

[0097] However, in the scheme of Figure 2 above, the large distance between the black matrix 0021 and the display panel 001 leads to severe brightness decay (L decay) and poor display effect of the display panel 001.

[0098] As can be seen from the schemes in Figures 1 and 2 above, no matter how the COE structure and EES structure are stacked on the display panel, a good optical effect cannot be achieved.

[0099] Figure 3 is a partial structural schematic diagram of a display module provided in an embodiment of this application. Referring to Figure 3, it can be seen that the display module 10 may include: a display panel 101, a color filter layer 102, and a dimming structure 103.

[0100] The display panel 101 includes a substrate 1011 and a light-emitting device layer 1012 located on one side of the substrate 1011. Referring to FIG. 4, the substrate 1011 may include a display area 1011a, and the light-emitting device layer 1012 may include a plurality of light-emitting units 10121, which may be located in the display area 1011a of the substrate 1011. The plurality of light-emitting units 10121 may include a first light-emitting unit 10121a and a second light-emitting unit 10121b.

[0101] Optionally, the area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the second light-emitting unit 10121b projected onto the substrate 1011. The area of ​​the light-emitting region of the light-emitting unit 10121 projected onto the substrate 1011 can also be referred to as the aperture ratio of the light-emitting unit 10121.

[0102] The color filter layer 102 is located on the side of the light-emitting device layer 1012 away from the substrate 1011. The color filter layer 102 includes a black matrix (BM) 1021 and a plurality of filter units 1022 (also referred to as color filters) corresponding to the plurality of light-emitting units 10121. The black matrix 1021 includes black matrix openings 1021a corresponding to the plurality of light-emitting units 10121. The orthographic projection of the filter unit 1022 on the substrate 1011 is at least within the orthographic projection of the black matrix opening 1021a on the substrate 1011. For example, in FIG. 3, a portion of the filter unit 1022 may be located within the black matrix opening 1021a. Furthermore, the orthographic projection of the filter unit 1022 on the substrate 1011 covers the orthographic projection of the light-emitting area of ​​the light-emitting unit 10121 on the substrate 1011, and the light emitted by the light-emitting unit 10121 can exit from the corresponding filter unit 1022.

[0103] The dimming structure 103 can be located on the side of the light-emitting device layer 1012 away from the substrate 1011. The refractive index of the material of the dimming structure 103 is different from that of the material of the filter unit 1022. The filter unit 1022 can be in contact with at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121, and at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121 is used to reflect the light emitted by the light-emitting unit 10121. In this embodiment, the reflection of light can be achieved by the difference in refractive index between the materials of the dimming structure 103 and the filter unit 1022. The at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121 can refer to a portion or all of the side surface of the dimming structure 103 near the light-emitting unit 10121.

[0104] Optionally, the refractive index of the material of the dimming structure 103 is less than that of the material of the filter unit 1022. The light emitted by the light-emitting unit 10121 can first be incident on the filter unit 1022 and then on the dimming structure 103. When the light from the light-emitting unit 10121 shines from the filter unit 1022 onto the dimming structure 103, if the incident angle of the light is large, the interface between the dimming structure 103 and the filter unit 1022 can totally reflect the light. The totally reflected light can then exit to the light-emitting area of ​​the light-emitting unit 10121, thereby improving the luminous efficiency of the light-emitting unit 10121.

[0105] In this embodiment, since the area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the second light-emitting unit 10121b projected onto the substrate 1011, the leveling effect of the filter unit 1022 (referred to as the first filter unit 1022a) corresponding to the first light-emitting unit 10121a is better than the leveling effect of the filter unit 1022 (referred to as the second filter unit 1022b) corresponding to the second light-emitting unit 10121b. If the leveling effect of the second filter unit 1022b is poor, it may result in a large height difference between the middle and the edge of the second filter unit 1022b (i.e., poor flatness of the surface of the second filter unit 1022b away from the substrate 1011), which may affect the light emission uniformity of the second light-emitting unit 10121b.

[0106] Referring to Figure 3, the dimming structure 103 includes a first portion 1031 surrounding the light-emitting area of ​​the first light-emitting unit 10121a, and a second portion 1032 surrounding the light-emitting area of ​​the second light-emitting unit 10121b. The thickness of the first portion 1031 is greater than the thickness of the second portion 1032. In Figure 3, the second portion 1032, in addition to being located around the light-emitting area of ​​the second light-emitting unit 1021b, may also be located on the side of the black matrix 1021 close to the substrate 1011.

[0107] In this embodiment, because the second portion 1032 surrounding the light-emitting area of ​​the second light-emitting unit 10121b is thinner, the leveling effect of the second filter unit 1022b can be improved. That is, even though the size of the light-emitting area of ​​the second light-emitting unit 10121b is small, the thinness of the second portion 1032 improves the leveling effect of the second filter unit 1022b, ensuring that the height of the edge and center of the second filter unit 1022b is as consistent or close as possible (i.e., improving the flatness of the surface of the second filter unit 1022b away from the substrate 1011), avoiding the appearance of dot-like starbursts when the second light-emitting unit 10121b emits light, and improving the light-emitting effect of the second light-emitting unit 10121b.

[0108] Furthermore, since the first portion 1031 surrounding the light-emitting area of ​​the first light-emitting unit 10121a is relatively thick, the surface area of ​​the first portion 1031 surrounding the light-emitting area of ​​the first light-emitting unit 10121a and the first filter unit 1022a in contact is relatively large. Therefore, referring to FIG5, compared to the second light-emitting unit 10121b, the light emitted by the first light-emitting unit 10121a can illuminate more of the interface between the dimming structure 103 and the filter unit 1022, thereby allowing the dimming structure 103 to reflect more light from the first light-emitting unit 10121a back to the light-emitting area of ​​the first light-emitting unit 10121a, which is beneficial for improving the luminous efficiency of the first light-emitting unit 10121a.

[0109] In this embodiment of the application, by designing dimming structures 103 with different thicknesses around the light-emitting area of ​​the first light-emitting unit 10121a and around the light-emitting area of ​​the second light-emitting unit 10121b, not only can the light-emitting efficiency of the first light-emitting unit 10121a be improved, but also the dot-shaped starbursts that appear when the second light-emitting unit 10121b emits light can be avoided, thereby improving the light-emitting effect of the second light-emitting unit 10121b.

[0110] In summary, this application provides a display module comprising a display panel, a color filter layer, and a dimming structure. Because the refractive index of the dimming structure material differs from that of the filter unit material in the color filter layer, light emitted by the light-emitting unit can be reflected to the light-emitting area due to the difference in refractive index between the dimming structure and the filter unit materials, thus improving the luminous efficiency of the light-emitting unit and consequently enhancing the display effect of the display module. Furthermore, this application allows for the design of the thickness of the dimming structure surrounding the light-emitting areas of different light-emitting units on the display panel, based on the dimensions of the light-emitting areas of those units, ensuring both the luminous effect and luminous efficiency of the light-emitting units.

[0111] Optionally, the substrate 1011 can be a glass substrate. The light-emitting unit 10121 can be an organic light-emitting diode (OLED).

[0112] Optionally, the material of the dimming structure 103 can be an organic material, such as optical adhesive (OC). The dimming structure 103 is used to enhance the light emission effect of the light-emitting unit 10121, and the dimming structure 103 can be simply referred to as EOC.

[0113] Optionally, the thickness of the black matrix 1021 can range from 1 μm to 1.5 μm. The thickness of the filter unit 1022 can range from 2 μm to 4.5 μm.

[0114] In this embodiment, referring to Figures 3 and 5, the dimming structure 103 includes a first sub-dimming layer g1 and a second sub-dimming layer g2 stacked along a direction away from the substrate 1011. The orthographic projection of the second sub-dimming layer g2 onto the substrate 1011 is located around the orthographic projection of the light-emitting area of ​​the first light-emitting unit 10121a onto the substrate 1011. The first sub-dimming layer g1 includes a plurality of first sub-dimming openings g1a corresponding to the plurality of light-emitting units 10121, and the second sub-dimming layer g2 includes a second sub-dimming opening g2a corresponding to the first light-emitting unit 10121a. The orthographic projection of the second sub-dimming opening g2a onto the substrate 1011 and the orthographic projection of the first sub-dimming opening g1a corresponding to the first light-emitting unit 10121a onto the substrate 1011 at least partially overlap, ensuring that light can be emitted.

[0115] Optionally, the orthographic projection of the second sub-dimming opening g2a on the substrate 1011 covers the orthographic projection of the first sub-dimming opening g1a corresponding to the first light-emitting unit 10121a on the substrate 1011. This ensures that the sides of the first sub-dimming layer g1 and the second sub-dimming layer g2 near the light-emitting area of ​​the first light-emitting unit 10121a can reflect the light from the first light-emitting unit 10121a, which is beneficial to improving the luminous efficiency of the first light-emitting unit 10121a.

[0116] In Figure 5, one of the two light rays from the first light-emitting unit 10121a is reflected by the first sub-dimming layer g1 and then emitted, while the other light ray is reflected by the second sub-dimming layer g2 and then emitted. In Figure 5, one of the two light rays from the second light-emitting unit 10121b is reflected by the first sub-dimming layer g1 and then emitted, while the other light ray passes directly through the filter unit and then emitted.

[0117] Optionally, the first sub-modulation layer g1 and the second sub-modulation layer g2 can be fabricated based on a halftone mask using the same process. Alternatively, the first sub-modulation layer g1 and the second sub-modulation layer g2 can be fabricated using two separate processes. This application does not limit the specific application to these methods.

[0118] Optionally, the area of ​​the orthographic projection of the second sub-dimming opening g2a onto the substrate 1011 can be equal to the area of ​​the orthographic projection of the first sub-dimming opening g1a corresponding to the first light-emitting unit 10121a onto the substrate 1011. Alternatively, the area of ​​the orthographic projection of the second sub-dimming opening g2a onto the substrate 1011 can be greater than the area of ​​the orthographic projection of the first sub-dimming opening g1a corresponding to the first light-emitting unit 10121a onto the substrate 1011.

[0119] Referring to Figure 5, the plurality of filter units 1022 include: a first filter unit 1022a corresponding to the first light-emitting unit 10121a, and a second filter unit 1022b corresponding to the second light-emitting unit 10121b. The first filter unit 1022a is located within the second sub-dimming opening g2a and the first sub-dimming opening g1a corresponding to the first light-emitting unit 10121a. The second filter unit 1022b is located within the first sub-dimming opening g1a corresponding to the second light-emitting unit 10121b.

[0120] In this embodiment, the first portion 1031 of the dimming structure 103 may include a second sub-dimming layer g2 and a portion of a first sub-dimming layer g1 located on the side of the second sub-dimming layer g2 near the substrate 1011. The portion of the first sub-dimming layer g1 on the side of the second sub-dimming layer g2 near the substrate 1011 may include the overlapping portion of the orthographic projection of the first sub-dimming layer g1 and the orthographic projection of the second sub-dimming layer g2. That is, the first portion 1031 of the dimming structure 103 includes the second sub-dimming layer g2 and the overlapping portion of the orthographic projections of the first sub-dimming layer g1 and the second sub-dimming layer g2. The thickness of the first portion 1031 may be the sum of the thicknesses of the first sub-dimming layer g1 and the second sub-dimming layer g2.

[0121] The second part 1032 of the dimming structure 103 may include the portion of the first sub-dimming layer g1 from which the orthographic projections of the second sub-dimming layer g2 do not overlap. The thickness of the second part 1032 may be the thickness of the first sub-dimming layer g1.

[0122] Optionally, the first sub-dimming layer g1 of the first part 1031 of the dimming structure 103 and the first sub-dimming layer g1 of the second part 1032 of the dimming structure 103 can be a single unit. Dividing the first sub-dimming layer g1 into the first part 1031 and the second part 1032 is for ease of expressing the meaning of the scheme.

[0123] It should be noted that the division of the first sub-dimming layer g1 varies, and the first sub-dimming layer g1 included in the first part 1031 is different from that included in the second part 1032. For example, the first part 1031 can also be defined as the portion of the first sub-dimming layer g1 whose orthographic projections do not overlap with those of the second sub-dimming layer g2. That is, the first part 1031 can also include the portion of the first sub-dimming layer g1 whose orthographic projections do not overlap with those of the second sub-dimming layer g2. In this case, the thickness of the first part 1031 can refer to the sum of the thicknesses of the second sub-dimming layer g2 and the portion of the first sub-dimming layer g1 where the orthographic projections of the second sub-dimming layer g2 overlap.

[0124] That is, by setting two sub-dimming layers around the light-emitting area of ​​the first light-emitting unit 10121a and one sub-dimming layer around the light-emitting area of ​​the second light-emitting unit 10121b, the thickness of the first part 1031 of the dimming structure 103 around the light-emitting area of ​​the first light-emitting unit 10121a is greater than the thickness of the second part 1032 of the dimming structure 103 around the light-emitting area of ​​the second light-emitting unit 10121b.

[0125] In this embodiment, among the multiple black matrix openings 1021a included in the black matrix 1021, the first type of black matrix opening corresponds to the first light-emitting unit 10121a, and the second type of black matrix opening corresponds to the second light-emitting unit 10121b. Furthermore, the first type of black matrix opening also corresponds to the first sub-dimming opening g1a and the second sub-dimming opening g2a corresponding to the first light-emitting unit 10121a, and the second type of black matrix opening also corresponds to the second sub-dimming opening g2a corresponding to the second light-emitting unit 10121b.

[0126] Optionally, the orthographic projection of the black matrix 1021 onto the substrate 1011 lies within the orthographic projection of the first sub-dimming layer g1 onto the substrate 1011, and the orthographic projection of the black matrix opening 1021a onto the substrate 1011 covers the orthographic projections of the first sub-dimming opening g1a and the second sub-dimming opening g2a onto the substrate 1011. This can be understood as follows: in the display area 1011a, the area of ​​the orthographic projection of the black matrix 1021 onto the substrate 1011 is smaller than the area of ​​the orthographic projection of the first sub-dimming layer g1 onto the substrate 1011. For the black matrix opening 1021a corresponding to the first light-emitting unit 10121a, the area of ​​the orthographic projection of the black matrix opening 1021a onto the substrate 1011 is larger than the area of ​​the orthographic projection of the first sub-dimming opening g1a onto the substrate 1011, and also larger than the area of ​​the orthographic projection of the second sub-dimming opening g2a onto the substrate 1011. For the black matrix opening 1021a and the first sub-dimming opening g1a corresponding to the second light-emitting unit 10121b, the area of ​​the orthogonal projection of the black matrix opening 1021a onto the substrate 1011 is greater than the area of ​​the orthogonal projection of the first sub-dimming opening g1a onto the substrate 1011.

[0127] Referring to Figure 3, the first sub-dimming layer g1 includes a target portion g1m near the light-emitting region of the first light-emitting unit 10121a. The orthographic projection of the target portion g1m onto the substrate 1011 overlaps with the orthographic projection of the black matrix opening 1021a corresponding to the first light-emitting unit 10121a onto the substrate 1011. Alternatively, it can be understood that the black matrix opening 1021a corresponding to the first light-emitting unit 10121a can expose the target portion g1m of the light-emitting region near the first light-emitting unit 10121a in the first sub-dimming layer g1. The second sub-dimming layer g2 is located at least on the side of the first sub-dimming layer g1 away from the substrate 1011. That is, the orthographic projection of the second sub-dimming layer g2 onto the substrate 1011 is close to the orthographic projection of the light-emitting region of the first light-emitting unit 10121a onto the substrate 1011.

[0128] Through the above design, the first portion 1031 of the dimming structure 103, located around the light-emitting area of ​​the first light-emitting unit 10121a, includes a target portion g1m of the first sub-dimming layer g1 and a second sub-dimming layer g2 located on the target portion g1m. Therefore, the interface between the target portion g1m and the first filter unit 1022a, as well as the interface between the second sub-dimming layer g2 and the first filter unit 1022a, can both be used to reflect the light from the first light-emitting unit 10121a.

[0129] Furthermore, since no second sub-dimming layer g2 is disposed around the light-emitting area of ​​the second light-emitting unit 10121b, the leveling effect of the second filter unit 1022b can be avoided due to the presence of the second sub-dimming layer g2. Moreover, for the second light-emitting unit 10121b, the light emitted by the second light-emitting unit 10121b can be reflected from the surface of the first sub-dimming layer g1 near the light-emitting area of ​​the second light-emitting unit 10121b and the contact surface with the second filter unit 1022b.

[0130] In this embodiment, since the surface area of ​​the dimming structure 103 used to reflect the light of the first light-emitting unit 10121a is larger than the surface area used to reflect the light of the second light-emitting unit 10121b, the light of the first light-emitting unit 10121a can be reflected to the light-emitting area more than that of the second light-emitting unit 10121b, and the luminous efficiency of the first light-emitting unit 10121a can be greater than that of the second light-emitting unit 10121b.

[0131] Since the luminous efficiency of the light-emitting unit 10121 has a certain impact on its lifespan, the embodiments of this application can balance the luminous efficiency and lifespan of the light-emitting unit 10121 through design. Generally, the higher the luminous efficiency of the light-emitting unit 10121, the longer its lifespan; the lower the luminous efficiency of the light-emitting unit 10121, the shorter its lifespan.

[0132] In this embodiment, the emission color of the first light-emitting unit 10121a may be different from the emission color of the second light-emitting unit 10121b. Since the different light-emitting units 10121 in the display panel 101 have different emission colors, resulting in different lifespans, for light-emitting units 10121 with shorter lifespans, their lifespan can be extended by improving their luminous efficiency, thereby extending the lifespan of the display panel 101.

[0133] Optionally, the display panel 101 may include a plurality of light-emitting units 10121, including red (R) light-emitting units 10121-R, green (G) light-emitting units 10121-G, and blue (B) light-emitting units 10121-B. Typically, the blue light-emitting unit 10121-B has the shortest lifespan, the green light-emitting unit 10121-G has the longest lifespan, and the lifespan of the red light-emitting unit 10121-R is between that of the blue light-emitting unit 10121-B and the green light-emitting unit 10121-G.

[0134] In this embodiment, based on the lifespan relationship of the light-emitting units 10121 with different emission colors, it is necessary to extend the lifespan of the blue light-emitting unit 10121-B to prolong the lifespan of the display panel 101. Therefore, the first light-emitting unit 10121a in this embodiment can be the blue light-emitting unit 10121-B. In this case, by making the area of ​​the light-emitting region of the blue light-emitting unit 10121-B larger, and by having a thicker first portion 1031 in the dimming structure 103 located around the light-emitting region of the blue light-emitting unit 10121-B to reflect the light from the blue light-emitting unit 10121-B, the luminous efficiency of the blue light-emitting unit 10121-B is improved, thereby extending the lifespan of the blue light-emitting unit 10121-B. In this case, the second light-emitting unit 10121b can be a red light-emitting unit or a green light-emitting unit.

[0135] Optionally, the plurality of light-emitting units 10121 may also include a third light-emitting unit 10121c. The emission color of the third light-emitting unit 10121c is different from that of the second light-emitting unit 10121b. Specifically, one of the second light-emitting unit 10121b and the third light-emitting unit 10121c is a red light-emitting unit 10121-R, and the other is a green light-emitting unit 10121-G. For example, the second light-emitting unit 10121b is a red light-emitting unit 10121-R, and the third light-emitting unit 10121c is a green light-emitting unit 10121G. Alternatively, the second light-emitting unit 10121b is a green light-emitting unit 10121G, and the third light-emitting unit 10121c is a red light-emitting unit 10121-R.

[0136] Optionally, the area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the light-emitting unit 10121b projected onto the substrate 1011, and the area of ​​the light-emitting unit 10121c projected onto the substrate 1011 is also larger. When the first light-emitting unit 10121a is a blue light-emitting unit 10212-B, the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011, and also larger than the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011.

[0137] Optionally, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is equal to the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011. Alternatively, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 may not be equal to the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011. This application does not limit the scope of the embodiments in this regard.

[0138] In this embodiment, the display panel 101 may include a plurality of light-emitting pixels, each of which may include a blue light-emitting unit 10121-B, a red light-emitting unit 10121-R, and two green light-emitting units 10121-G. The fact that the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is greater than the area of ​​the green light-emitting unit 10121-G projected onto the substrate 1011 can be interpreted as: the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is greater than the area of ​​the single green light-emitting unit 10121-G projected onto the substrate 1011.

[0139] Optionally, among the multiple filter units 1022, the filter unit 1022 corresponding to the blue light-emitting unit 10121-B is called the blue filter unit 1022-B, the filter unit 1022 corresponding to the red light-emitting unit 10121-R is called the red filter unit 1022-R, and the filter unit 1022 corresponding to the green light-emitting unit 10121-G is called the green filter unit 1022-G.

[0140] It should be noted that the descriptions of the second light-emitting unit 10121b in the embodiments of this application can be applied to the third light-emitting unit 10121c. Optionally, the arrangement between the third light-emitting unit 10121c and the dimming structure 103 is the same as that between the second light-emitting unit 10121b and the dimming structure 103. For example, the second part 1032 of the dimming structure 103 may also be located around the light-emitting area of ​​the third light-emitting unit 10121c. The plurality of filter units 1022 further includes a third filter unit 1022c corresponding to the third light-emitting unit 10121c, and the third filter unit 1022c is located within the first sub-dimming opening g1a corresponding to the third light-emitting unit 10121c.

[0141] That is, no second sub-dimming layer g2 is provided around the light-emitting area of ​​the third light-emitting unit 10121c, thus avoiding any impact on the leveling effect of the third filter unit 1022c due to the provision of the second sub-dimming layer g2. Furthermore, for the third light-emitting unit 10121c, the light emitted by the third light-emitting unit 10121c can be reflected by the surface of the first sub-dimming layer g1 near the light-emitting area of ​​the third light-emitting unit 10121c and the portion of the surface in contact with the third filter unit 1022c.

[0142] For the blue light-emitting unit 10121-B, the red light-emitting unit 10121-R, and the green light-emitting unit 10121-G, the thickness of the dimming structure 103 around the light-emitting area of ​​the blue light-emitting unit 10121-B is the sum of the thicknesses of the first sub-dimming layer g1 and the second sub-dimming layer g2. The thickness of the dimming structure 103 around the light-emitting areas of the red light-emitting unit 10121-R and the green light-emitting unit 10121-G is the thickness of the first sub-dimming layer g1. Furthermore, because the light-emitting area of ​​the blue light-emitting unit 10121-B is larger, the leveling effect of the blue filter unit 1022-B corresponding to the blue light-emitting unit 10121-B is better. This means that if dimming structures 103 of the same thickness are designed around the light-emitting areas of the blue light-emitting unit 10121-B, the red light-emitting unit 10121-R, and the green light-emitting unit 10121-G, then the height difference between the edge and the center of the blue filter unit 1022-B will be smaller than the height difference between the edge and the center of the red filter unit 1022-R and the green filter unit 1022-G. Therefore, the blue light-emitting unit 10121-B is less likely to exhibit dot-like starbursts when emitting light, while the red light-emitting units 10121-R and the green light-emitting unit 10121-G are more likely to exhibit dot-like starbursts when emitting light. Furthermore, to reduce the possibility of dot-like starbursts appearing in the red light-emitting units 10121-R and the green light-emitting units 10121-G, the thickness of the dimming structures 103 surrounding the light-emitting areas of the red light-emitting units 10121-R and the green light-emitting units 10121-G can be made thinner.

[0143] In this embodiment, the thickness of the dimming structure 103 disposed around the light-emitting areas of different light-emitting units 10121 can be determined by the size relationship of the areas of the light-emitting areas of different light-emitting units 10121 projected onto the substrate 1011. For example, the thickness of the dimming structure 103 around the light-emitting area with the larger projected area can be designed to be thicker.

[0144] Optionally, the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011, and larger than the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting region of the blue light-emitting unit 10121-B (referred to as EOC(B)) is larger than the thickness of the dimming structure 103 surrounding the light-emitting region of the red light-emitting unit 10121-R (referred to as EOC(R)), and larger than the thickness of the dimming structure 103 surrounding the light-emitting region of the green light-emitting unit 10121-G (referred to as EOC(G)), i.e., EOC(B)>EOC(R)>EOC(G).

[0145] Alternatively, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011, and the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)), and the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)), that is, EOC(R)>EOC(G)>EOC(B).

[0146] Alternatively, the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011, and the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)), and the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)), that is, EOC(G)>EOC(R)>EOC(B).

[0147] Alternatively, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is equal to the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011, and the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)) is equal to the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)). The thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)), that is, EOC(R) = EOC(G) > EOC(B).

[0148] Alternatively, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011, and the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011 is equal to the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)). The thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)) is equal to the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)), that is, EOC(R) > EOC(G) = EOC(B).

[0149] Alternatively, the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011 is equal to the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011, and the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)) is equal to the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)). The thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)), that is, EOC(R) = EOC(B) > EOC(G).

[0150] Alternatively, the area of ​​the light-emitting region of the green light-emitting unit 10121-G projected onto the substrate 1011 is equal to the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011, and the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is greater than the area of ​​the light-emitting region of the red light-emitting unit 10121-R projected onto the substrate 1011. In this case, the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the green light-emitting unit 10121-G (referred to as EOC(G)) is equal to the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)). The thickness of the dimming structure 103 surrounding the light-emitting area of ​​the blue light-emitting unit 10121-B (referred to as EOC(B)) is greater than the thickness of the dimming structure 103 surrounding the light-emitting area of ​​the red light-emitting unit 10121-R (referred to as EOC(R)), that is, EOC(G) = EOC(B) > EOC(R).

[0151] In this embodiment, the size relationship of the light-emitting area of ​​the light-emitting unit and the thickness relationship of the dimming structure 103 disposed around the light-emitting area are merely illustrative examples. Besides the relationships described above, the size relationship of the light-emitting area of ​​the light-emitting unit can also have other relationships, and the thickness relationship of the dimming structure 103 can be determined based on the size relationship of the light-emitting area of ​​the light-emitting unit. Further details are omitted here.

[0152] As a first alternative implementation, referring to FIG3, the black matrix 1021 is located on the side of the first sub-dimming layer g1 away from the substrate 1011. The black matrix opening 1021a exposes a portion of the light-emitting area in the first sub-dimming layer g1 near the light-emitting unit 10121. In this case, from the direction near the display panel 101 to the direction away from the display panel 101, the first filter unit 1022a is first located within the first sub-dimming opening g1a of the first sub-dimming layer g1, and the first filter unit 1022a can cover the second sub-dimming layer g2 and a portion of the black matrix 1021. From the direction near the display panel 101 to the direction away from the display panel 101, the second filter unit 1022b covers the first sub-dimming opening g1a of the first sub-dimming layer g1, is located within the black matrix opening 1021a of the black matrix 1021, and covers a portion of the black matrix 1021. From the direction close to the display panel 101 to the direction away from the display panel 101, the third filter unit 1022c covers the first sub-dimming opening g1a located in the first sub-dimming layer g1, is located in the black matrix opening 1021a of the black matrix 1021, and covers a part of the black matrix 1021.

[0153] Referring to Figure 3, it can be seen that the second sub-modulation layer g2 and the black matrix 1021 are both located on the side of the first sub-modulation layer g1 away from the substrate 1011. The second sub-modulation layer g2 is located on the side of the black matrix 1021 closer to the light-emitting area of ​​the first light-emitting unit 10121a. That is, the second sub-modulation layer g2 is closer to the light-emitting area of ​​the first light-emitting unit 10121a relative to the black matrix 1021.

[0154] Optionally, the second sub-dimming layer g2 and the black matrix 1021 can be set at intervals or in contact, and this application embodiment does not limit this.

[0155] As a second optional implementation, referring to Figure 6, the black matrix 1021 is located on the side of the first sub-switching layer g1 closest to the substrate 1011. The first sub-switching layer g1 covers the black matrix 1021 and a portion of the opening 1021a of the black matrix. In this case, the thickness of the first sub-switching layer g1 can be greater than the thickness of the black matrix 1021 to ensure that the first sub-switching layer g1 can completely cover the black matrix 1021.

[0156] Optionally, referring to Figure 6, the first filter unit 1022a may cover the second sub-dimming layer g2, that is, the second sub-dimming layer g2 is completely covered by the first filter unit 1022a. Alternatively, referring to Figure 7, the first filter unit 1022a may expose a portion of the light-emitting area of ​​the second sub-dimming layer g2 away from the first light-emitting unit 10121a, that is, the first filter unit 1022a and the second sub-dimming layer g2 partially overlap. This application embodiment does not limit whether the first filter unit 1022a completely covers the second sub-dimming layer g2, as long as the first filter unit 1022a covers the surface of the second sub-dimming layer g2 near the light-emitting area of ​​the first light-emitting unit 10121a.

[0157] Since the black matrix 1021 is disposed on the side of the first sub-dimming layer g1 close to the substrate 1011, the distance between the black matrix 1021 and the light-emitting unit 10121 in the direction perpendicular to the bearing surface of the substrate 1011 is small, which can further reduce the brightness attenuation of the light-emitting unit 10121, improve the light-emitting effect of the light-emitting unit 10121, and thus improve the display effect of the display panel 101.

[0158] In this embodiment, the black matrix 1021 is located on the side of the first sub-dimming layer g1 closest to the substrate 1011, and the second sub-dimming layer g2 is located on the side of the first sub-dimming layer g1 furthest from the substrate 1011. That is, the black matrix 1021 and the second sub-dimming layer g2 are located on different sides of the first sub-dimming layer g1.

[0159] The orthographic projection of the black matrix 1021 on the substrate 1011 and the orthographic projection of the second sub-dimming layer g2 on the substrate 1011 may overlap or not overlap. Non-overlapping orthographic projections may mean that the orthographic projection of the black matrix 1021 on the substrate 1011 and the orthographic projection of the second sub-dimming layer g2 on the substrate 1011 are in contact or have a gap.

[0160] As a third optional implementation, referring to Figure 8, the first filter unit 1022a is also located on the side of the first sub-modulation layer g1 and the second sub-modulation layer g2 away from the substrate 1011, the second filter unit 1022b is also located on the side of the first sub-modulation layer g1, and the third filter unit 1022c is also located on the side of the first sub-modulation layer g1. The black matrix 1021 can be located on the side of the plurality of filter units 1022 away from the substrate 1011.

[0161] Optionally, there is no gap between the two filter units 1022 corresponding to any two adjacent light-emitting units 10121. For example, the sides of the two filter units 1022 corresponding to two adjacent light-emitting units 10121 may be in direct contact, or the two filter units 1022 corresponding to two adjacent light-emitting units 10121 may partially overlap.

[0162] Since there is no gap between the two filter units 1022 corresponding to two adjacent light-emitting units 10121, it is convenient to place the black matrix 1021 on the side of the plurality of filter units 1022 away from the substrate 1011. For example, the black matrix 1021 may be located above the position where the two filter units 1022 corresponding to two adjacent light-emitting units 10121 meet.

[0163] Optionally, referring to Figure 8, the first filter unit 1022a covers the second sub-dimming layer g2, that is, the first filter unit 1022a can completely cover the second sub-dimming layer g2. The orthographic projection of the junction of the first filter unit 1022a and the filter unit 1022 adjacent to the first filter unit 1022a on the substrate 1011 is located on the side of the orthographic projection of the second sub-dimming layer g2 on the substrate 1011 that is away from the orthographic projection of the light-emitting area of ​​the first light-emitting unit 10121a on the substrate 1011.

[0164] Alternatively, referring to Figure 9, the first filter unit 1022a exposes a portion of the light-emitting region of the second sub-dimming layer g2 away from the first light-emitting unit 10121a, meaning the first filter unit 1022a and the second sub-dimming layer g2 partially overlap. In this case, to ensure no gaps between adjacent filter units 1022, the filter unit 1022 adjacent to the first filter unit 1022a can also be located on the side of the second sub-dimming layer g2 away from the substrate 1011. Thus, the orthographic projection of the first filter unit 1022a and the boundary of the filter unit 1022 adjacent to it onto the substrate 1011 overlaps with the orthographic projection of the second sub-dimming layer g2 onto the substrate 1011.

[0165] In this embodiment, there is no limitation on whether the first filter unit 1022a completely covers the second sub-dimming layer g2. It is only necessary to ensure that the first filter unit 1022a covers the surface of the second sub-dimming layer g2 near the light-emitting area of ​​the first light-emitting unit 10121a, and that there is no gap between adjacent filter units 1022.

[0166] In this embodiment of the application, for Figures 8 and 9, the second sub-modulation layer g2 has a filter unit 1022 on the side away from the substrate 1011, and the black matrix 1021 is located on the side of the filter unit 1022 away from the substrate 1011. That is, the black matrix 1021 and the second sub-modulation layer g2 are located on different sides of the filter unit 1022.

[0167] The orthographic projection of the black matrix 1021 on the substrate 1011 and the orthographic projection of the second sub-dimming layer g2 on the substrate 1011 may overlap or not overlap. Non-overlapping orthographic projections may mean that the orthographic projection of the black matrix 1021 on the substrate 1011 and the orthographic projection of the second sub-dimming layer g2 on the substrate 1011 are in contact or have a gap.

[0168] In the first to third implementations described above, the boundary of the first sub-dimming layer g1 near the light-emitting region is located on the side of the pixel defining layer m2 (described later) near the light-emitting region away from the light-emitting region. For example, the distance between the boundary of the first sub-dimming layer g1 near the light-emitting region and the boundary of the pixel defining layer m2 near the light-emitting region ranges from 0 μm to 1 μm. Optionally, the orthographic projection of the first sub-dimming opening g1a of the first sub-dimming layer g1 onto the substrate 1011 can cover the orthographic projection of the cutout region m2a of the pixel defining layer m2 onto the substrate 1011, and the area of ​​the orthographic projection of the first sub-dimming opening g1a of the first sub-dimming layer g1 onto the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout region m2a of the pixel defining layer m2 onto the substrate 1011.

[0169] Optionally, the boundary of the second sub-dimming layer g2 near the light-emitting region is located on the side of the boundary of the pixel defining layer m2 near the light-emitting region that is away from the light-emitting region. For example, the distance between the boundary of the second sub-dimming layer g2 near the light-emitting region and the boundary of the pixel defining layer m2 near the light-emitting region ranges from 0 μm to 2 μm. Optionally, the orthographic projection of the second sub-dimming opening g2a of the second sub-dimming layer g2 on the substrate 1011 can cover the orthographic projection of the cutout region m2a of the pixel defining layer m2 on the substrate 1011, and the area of ​​the orthographic projection of the second sub-dimming opening g2a of the second sub-dimming layer g2 on the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout region m2a of the pixel defining layer m2 on the substrate 1011.

[0170] Optionally, the thickness of the first sub-dimming layer g1 can range from 1 μm to 2.5 μm, and the thickness of the second sub-dimming layer g2 can range from 0.5 μm to 1.5 μm. The slope angle of the first sub-dimming opening g1a of the first sub-dimming layer g1 can range from 50° to 80°, for example, 60° or 70°. The slope angle of the second sub-dimming opening g2a of the second sub-dimming layer g2 can range from 50° to 80°, for example, 60° or 70°.

[0171] By designing the slope angle of the first sub-dimming opening g1a of the first sub-dimming layer g1 and the slope angle of the second sub-dimming opening g2a of the second sub-dimming layer g2 to be 50° to 80°, the side surfaces of the first sub-dimming layer g1 and the second sub-dimming layer g2 can achieve total internal reflection of light, which is beneficial to improving the luminous efficiency of the light-emitting unit.

[0172] Optionally, the slope angle of the first sub-dimming opening g1a of the first sub-dimming layer g1 and the slope angle of the second sub-dimming opening g2a of the second sub-dimming layer g2 can be the same or different, and this application embodiment does not limit this.

[0173] As a fourth optional implementation, referring to Figure 10, the plurality of black matrix openings 1021a include: a first type of black matrix opening 1021a1 corresponding to the first light-emitting unit 10121a, a second type of black matrix opening 1021a2 corresponding to the second light-emitting unit 10121b, and a third type of black matrix opening 1021a3 corresponding to the third light-emitting unit 10121c.

[0174] The orthographic projection of the first portion 1031 of the dimming structure 103 onto the substrate 1011 lies within the first type of black matrix opening 1021a1, and the orthographic projection of the first portion 1031 onto the substrate 1011 surrounds the orthographic projection of the light-emitting area of ​​the first light-emitting unit 10121a onto the substrate 1011. The orthographic projection of the second portion 1032 of the dimming structure 103 onto the substrate 1011 lies within the second type of black matrix opening 1021a2, and the orthographic projection of the second portion 1032 onto the substrate 1011 surrounds the orthographic projection of the light-emitting area of ​​the second light-emitting unit 10121b onto the substrate 1011. The orthographic projection of the second portion 1032 of the dimming structure 103 onto the substrate 1011 also lies within the third type of black matrix opening 1021a3, and the orthographic projection of the second portion 1032 onto the substrate 1011 surrounds the orthographic projection of the light-emitting area of ​​the third light-emitting unit 10121c onto the substrate 1011. That is, the dimming structure 103 around different light-emitting units 10121 is a discontinuous structure.

[0175] Referring to Figure 10, the first filter unit 1022a is located at least within the first type of black matrix opening 1021a and covers the first portion 1031. The second filter unit 1022b is located at least within the second type of black matrix opening 1021a2 and covers the second portion 1032. The third filter unit 1022c is located at least within the third type of black matrix opening 1021a3 and covers the second portion 1032.

[0176] In the embodiments of this application, the first part 1031 and the second part 1032 of the dimming structure 103 have different thicknesses, so the dimming structure 103 can be based on a halftone mask and fabricated using the same process.

[0177] Alternatively, referring to Figure 11, the first part 1031 of the dimming structure 103 includes a first sub-dimming section 10311 and a second sub-dimming section 10312 stacked together, and the second part 1032 includes a third sub-dimming section 10321. The first sub-dimming section 10311 and the third sub-dimming section 10321 are located on the same layer. The first sub-dimming section 10311 and the third sub-dimming section 10321 being on the same layer can mean that the first sub-dimming section 10311 and the third sub-dimming section 10321 can be prepared using the same single fabrication process. In this case, the second sub-dimming section 10312 can be prepared using a single fabrication process after the first sub-dimming section 10311 and the third sub-dimming section 10321 have been prepared.

[0178] Optionally, the thickness of the first portion 1031 can range from 1.5 μm to 3.5 μm. For example, the thickness of the portion of the dimming structure 103 disposed within the black matrix opening 1021a corresponding to the blue light-emitting unit 10121-B can range from 1.5 μm to 3.5 μm. The thickness of the second portion 1032 can range from 1 μm to 2.5 μm. For example, the thickness of the portion of the dimming structure 103 disposed within the black matrix opening 1021a corresponding to the red light-emitting unit 10121-R and the green light-emitting unit 10121-G can range from 1 μm to 2.5 μm.

[0179] In the fourth implementation, the boundary of the first part near the light-emitting area is located on the side of the pixel defining layer m2 (described later) away from the light-emitting area. Optionally, the orthographic projection of the first dimming opening 1031a of the first part 1031 onto the substrate 1011 can cover the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011, and the area of ​​the orthographic projection of the first dimming opening 1031a of the first part 1031 onto the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011.

[0180] The boundary of the second part 1032 near the light-emitting area is located on the side of the pixel defining layer m2 away from the light-emitting area. Optionally, the orthographic projection of the second dimming opening 1032a of the second part 1032 on the substrate 1011 can cover the orthographic projection of the cutout area m2a of the pixel defining layer m2 on the substrate 1011, and the area of ​​the orthographic projection of the second dimming opening 1032a of the second part 1032 on the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout area m2a of the pixel defining layer m2 on the substrate 1011.

[0181] Optionally, the slope angle of the first dimming opening 1031a of the first part 1031 can be in the range of 50° to 80°, for example, 60° or 70°. The slope angle of the second dimming opening 1032a of the second part 1032 can be in the range of 50° to 80°, for example, 60° or 70°.

[0182] By designing the slope angle of the first dimming opening 1031a of the first part 1031 and the slope angle of the second dimming opening 1032a of the second part 1032 to be 50° to 80°, the sides of the first part 1031 and the second part 1032 can achieve total internal reflection of light, which is beneficial to improving the luminous efficiency of the light-emitting unit.

[0183] Optionally, the slope angle of the first dimming opening 1031a of the first part 1031 and the slope angle of the second dimming opening 1032a of the second part 1032 can be the same or different, and this application embodiment does not limit this.

[0184] In this embodiment, the area of ​​the surface capable of reflecting light in the dimming structure 103 surrounding the light-emitting unit 10121 is positively correlated with the thickness of the dimming structure 103. The luminous efficiency of the light-emitting unit 10121 is also positively correlated with the area of ​​the surface capable of reflecting light in the dimming structure 103 surrounding the light-emitting unit 10121. That is, the thicker the dimming structure 103, the larger the area of ​​the surface capable of reflecting light in the dimming structure 103 surrounding the light-emitting unit 10121, and the greater the luminous efficiency of the light-emitting unit 10121; conversely, the thinner the dimming structure 103, the smaller the area of ​​the surface capable of reflecting light in the dimming structure 103 surrounding the light-emitting unit 10121, and the lower the luminous efficiency of the light-emitting unit 10121.

[0185] Because the first portion 1031 surrounding the light-emitting area of ​​the first light-emitting unit 10121a is relatively thick, the interface area between the first portion 1031 and the first filter unit 1022a is relatively large. This larger interface area allows the light from the first light-emitting unit 10121a to be reflected, thereby improving the luminous efficiency of the first light-emitting unit 10121a. Because the second portion 1032 surrounding the light-emitting areas of the second light-emitting unit 10121b and the third light-emitting unit 10121c is relatively thin, the thicker dimming structure 103 can prevent it from affecting the leveling effect of the second filter unit 1022b and the third filter unit 1022c.

[0186] Since the luminous efficiency of the light-emitting unit 10121 has a certain impact on its lifespan, the embodiments of this application can balance the luminous efficiency and lifespan of the light-emitting unit 10121 through design. Generally, the higher the luminous efficiency of the light-emitting unit 10121, the longer its lifespan; the lower the luminous efficiency of the light-emitting unit 10121, the shorter its lifespan.

[0187] In this embodiment, the light emission colors of the first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c are all different. Since the different light-emitting units 10121 in the display panel 101 have different lifespans due to their different light emission colors, for light-emitting units 10121 with shorter lifespans, their lifespan can be extended by improving their luminous efficiency, thereby extending the lifespan of the display panel 101.

[0188] Based on the above embodiments, it can be concluded that the lifespan of the blue light-emitting unit 10121-B is relatively short. Therefore, the lifespan of the display panel 101 can be extended by increasing the lifespan of the blue light-emitting unit 10121-B based on the lifespan relationship of light-emitting units 10121 with different emitting colors. Thus, the first light-emitting unit 10121a in this embodiment can be the blue light-emitting unit 10121-B. In this case, by making the area of ​​the light-emitting region of the blue light-emitting unit 10121-B larger, and by having a thicker first portion 1031 in the dimming structure 103 located around the light-emitting region of the blue light-emitting unit 10121-B reflecting the light from the blue light-emitting unit 10121-B, the luminous efficiency of the blue light-emitting unit 10121-B is improved, thereby extending the lifespan of the blue light-emitting unit 10121-B.

[0189] In addition, the plurality of light-emitting units 10121 also includes a third light-emitting unit 10121c. The area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the third light-emitting unit 10121c projected onto the substrate 1011. One of the second light-emitting unit 10121b and the third light-emitting unit 10121c is a red light-emitting unit 10121-R, and the other is a green light-emitting unit 10121-G.

[0190] In this embodiment, the black matrix 1021 can be a set black light-blocking material, or it can be a superposition of filter units 1022 of different colors.

[0191] Optionally, if there are no other film layers between the filter units 1022 and the black matrix 1021 included in the color filter layer 102, then the black matrix 1021 can be composed of adjacent filter units 1022 stacked together for emitting light. If the filter units 1022 and the black matrix 1021 have other film layers, then the black matrix 1021 can be composed of filter units of different colors stacked together. In this case, the filter units stacked to form the black matrix 1021 are different from the filter units 1022 used for emitting light.

[0192] Optionally, referring to Figures 3, 5, 8, 9, 10 and 11, the color filter layer 102 includes filter units 1022 and black matrix 1021 without any other film layer portion between them. The black matrix 1021 can be a set black light-shielding material, or it can be used for emitting light and adjacent filter units 1022 are stacked.

[0193] Referring to Figures 6 and 7, the color filter layer 102 includes a first sub-tuning layer g1 between the filter unit 1022 and the black matrix 1021. The black matrix 1021 can be a set black light-blocking material or a superposition of filter units of different colors.

[0194] In this embodiment of the application, referring to FIG3 and FIGS5 to 11, the light-emitting device layer 1012 may include: an anode layer m1, a pixel definition layer (PDL) m2, a light-emitting layer (EL) m3, and a cathode layer m4 stacked along a direction away from the substrate 1011. The anode layer m1 may include multiple anode patterns m11 of multiple light-emitting units 10121. The pixel definition layer m2 includes multiple cutout regions m2a corresponding to the multiple anode patterns m11, with each cutout region m2a exposing at least a portion of a corresponding anode pattern m11. The light-emitting layer m3 includes multiple light-emitting patterns m31 of multiple light-emitting units 10121, with each light-emitting pattern m31 located within a corresponding cutout region m2a and connected to the exposed anode pattern m11 in the cutout region m2a. The cathode layer m4 can be a whole film layer and covers multiple light-emitting patterns m31 of multiple light-emitting units 10121. The cathode layer m4 can be connected to the light-emitting pattern m31 of each light-emitting unit 10121.

[0195] Optionally, the area defined by the cutout region m2a of the pixel defining layer m2 can be used to represent the light-emitting region of the light-emitting unit 10121. The light-emitting unit 10121 may include an anode pattern m11, a light-emitting pattern m31, and a cathode layer m4.

[0196] In this embodiment, the orthographic projection of the black matrix opening 1021a of the black matrix 1021 onto the substrate 1011 covers the orthographic projection of the cutout region m2a onto the substrate 1011. Alternatively, it can be understood that the boundary of the black matrix 1021 near the light-emitting region is located on the side of the pixel defining layer m2 near the light-emitting region that is farther from the light-emitting region. For example, the distance between the boundary of the black matrix 1021 near the light-emitting region and the boundary of the pixel defining layer m2 near the light-emitting region can range from 4 μm to 6 μm.

[0197] Optionally, the orthographic projection of the first sub-dimming opening g1a of the first sub-dimming layer g1 onto the substrate 1011 can cover the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011, and the area of ​​the orthographic projection of the first sub-dimming opening g1a of the first sub-dimming layer g1 onto the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011. Similarly, the orthographic projection of the second sub-dimming opening g2a of the second sub-dimming layer g2 onto the substrate 1011 can cover the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011, and the area of ​​the orthographic projection of the second sub-dimming opening g2a of the second sub-dimming layer g2 onto the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011.

[0198] Figure 12 is a partial cross-sectional schematic diagram of another display module provided in an embodiment of this application. Referring to Figure 3, and Figures 5 to 12, the display panel 101 further includes: a light-emitting circuit layer 1013 located on the side of the light-emitting device layer 1012 near the substrate 1011, and an encapsulation film layer 1014 located on the side of the light-emitting device layer 1012 away from the substrate 1011. The light-emitting circuit layer 1013 includes multiple light-emitting circuits 10131 corresponding to and connected to multiple light-emitting units 10121. The light-emitting circuits 10131 can be used to provide light-emitting signals to the light-emitting units 10121. The encapsulation film layer 1014 can be used to encapsulate the multiple light-emitting units 10121. The light-emitting circuit layer 1013 is not shown in Figure 3, and Figures 3 to 11. Figure 12 shows the light-emitting circuit 10131 and the light-emitting units 10121 in a pixel unit F. Optionally, the light-emitting circuit 10131 includes multiple thin-film transistors (TFTs)T and at least one storage capacitor Cst.

[0199] Referring to FIG12, the light-emitting circuit layer 1013 includes an active layer (poly) n1, a first gate insulator (GI) n2, a first gate layer (gate1) n3, a second gate insulator (GI2) n4, a second gate layer (gate2) n5, an inter-level dielectric (ILD) n6, a first source-drain layer (SD1) n7, a first planarization layer (PLN1) n8, a second source-drain layer (SD2) n9, and a second planarization layer (PLN2) n10, which are stacked on one side of the substrate 1011 and in a direction away from the substrate 1011.

[0200] The active layer n1 includes an active pattern n11 of multiple thin-film transistors T, and the active pattern n11 includes a source region and a drain region.

[0201] The first gate layer n3 includes gate patterns n31 of a plurality of thin-film transistors T and a first capacitor plate n32 of at least one storage capacitor Cst. The orthographic projection of the gate pattern n31 on the substrate 1011 and the orthographic projection of the active pattern n11 on the substrate 1011 partially overlap.

[0202] The second gate layer n5 includes a second capacitor plate n51 that includes at least one storage capacitor Cst. The orthographic projection of the second capacitor plate n51 onto the substrate 1011 and the orthographic projection of the first capacitor plate n32 onto the substrate 1011 at least partially overlap.

[0203] The first source-drain layer n7 includes sources n71 and drains n72 of multiple thin-film transistors T. Sources n71 are connected to the source region of the active pattern n11 via vias in the interlayer dielectric layer n6, the second gate insulating layer n4, and the first gate insulating layer n3. Drains n72 are connected to the drain region of the active pattern n11 via vias in the interlayer dielectric layer n6, the second gate insulating layer n4, and the first gate insulating layer n2.

[0204] The second source-drain layer n9 includes a first connection portion n91 located in the display area 1011a. The first connection portion n91 is connected to the drain n72 through a via of the first planarization layer n8. The anode pattern m11 of the light-emitting unit 10121 is connected to the first connection portion n91 through a via of the second planarization layer n10.

[0205] Optionally, the encapsulation film layer 1014 includes a first sub-encapsulation layer 10141, a second sub-encapsulation layer 10142, and a third sub-encapsulation layer 10143 stacked in the direction away from the cathode layer m4 and away from the substrate 1011.

[0206] Optionally, the materials of the first sub-encapsulation layer 10141 and the third sub-encapsulation layer 10143 include inorganic materials, and the material of the second sub-encapsulation layer 10142 includes organic materials.

[0207] For example, the first sub-encapsulation layer 10141 and the third sub-encapsulation layer 10143 may be made of one or more inorganic oxides such as SiNx (silicon nitride), SiOx (silicon oxide), and SiOxNy (silicon oxynitride). The second sub-encapsulation layer 10142 may be made of a resin material. The resin may be a thermoplastic resin or a thermosetting resin; the thermoplastic resin may include acrylic (PMMA) resin, and the thermosetting resin may include epoxy resin.

[0208] Optionally, the second sub-encapsulation layer 10142 can be fabricated using inkjet printing (IJP). The first sub-encapsulation layer 10141 and the third sub-encapsulation layer 10143 can be fabricated using chemical vapor deposition (CVD). The first sub-encapsulation layer 10141 and the third sub-encapsulation layer 10143 can be referred to as CVD layers, and the second sub-encapsulation layer 10142 can be referred to as an IJP layer.

[0209] Referring to Figures 12 to 19, it can also be seen that the display module 10 further includes a touch film layer 104 located on the side of the encapsulation film layer 1014 in the display panel 101 that is away from the substrate 1011. The color filter layer 102 and the dimming structure 103 are both located on the side of the touch film layer 104 away from the display panel 101. In this case, the black matrix 1021 of the color filter layer 102 can be closer to the outside world relative to the touch film layer 104, allowing external light to be absorbed by the black matrix 1021 before it reaches the touch film layer 104, thus avoiding any impact on the display effect of the display module 10 due to the reflective properties of the touch film layer 104.

[0210] Optionally, the touch film layer 104 can also be located on the side of the color filter layer 102 and the dimming structure 103 away from the display panel 101. In this case, in order to reduce the reflective properties of the touch film layer 104, the touch wiring layer in the touch film layer 104 can be made of a black metal material.

[0211] Alternatively, some of the films in the touch film layer 104, the color filter layer 102, and the dimming structure 103 can be reused. This application does not limit the specific design of the touch film layer 104, the color filter layer 102, and the dimming structure 103.

[0212] Referring to Figures 13 to 19, the touch film layer 104 includes: a touch buffer layer 1041, a first touch wiring layer 1042, a touch insulating layer 1043, and a second touch wiring layer 1044, which are stacked sequentially. The function of the touch buffer layer 1041 is to improve the reliability of the touch wiring layer in the touch film layer 104.

[0213] Both the first touch wiring layer 1042 and the second touch wiring layer 1044 include touch electrode lines s1. The orthographic projection of the touch electrode lines s1 on the substrate 1011 is located within the orthographic projection of the black matrix 1021 on the substrate 1011, so as to avoid the touch electrode lines s1 affecting the light-emitting area of ​​the light-emitting unit 10121.

[0214] Referring to Figures 13, 16, and 17, it can be seen that the first sub-dimming layer g1 of the dimming structure 103 is in contact with the touch electrode lines in the second touch wiring layer 1044, and the first sub-dimming layer g1 covers the touch electrode lines in the second touch wiring layer 1044. In this case, the black matrix 1021 is not in direct contact with the touch electrode lines in the second touch wiring layer 1044. It is only necessary to ensure that the orthographic projection of the touch electrode lines in the second touch wiring layer 1044 on the substrate 1011 is within the orthographic projection of the black matrix 1021 on the substrate 1011, so as to avoid the touch electrode lines s1 affecting the light-emitting area of ​​the light-emitting unit 10121.

[0215] Alternatively, referring to Figures 14, 15, 18, and 19, the black matrix 1021 and the touch electrode lines in the second touch wiring layer 1044 are in contact, and the black matrix 1021 covers the touch electrode lines in the second touch wiring layer 1044. In this case, the black matrix 1021 and the touch electrode lines in the second touch wiring layer 1044 are in direct contact, ensuring that the touch electrode lines in the second touch wiring layer 1044 are covered by the black matrix 1021, so as to avoid the touch electrode lines s1 affecting the light-emitting area of ​​the light-emitting unit 10121.

[0216] Optionally, the first touch trace layer 1042 may also be referred to as the first touch metal layer (Touch metal layer A, TMA), and the second touch trace layer 1044 may also be referred to as the second touch metal layer (Touch metal layer B, TMB).

[0217] In this embodiment, the touch electrode lines s1 can form mutually insulated first touch electrodes s11 and second touch electrodes s11. The first touch electrode s11 includes a main electrode s111 and a bridging electrode s112. Referring to Figures 20 and 21, one of the touch electrode layers 1042 and 1044 (taking the first touch electrode layer 1042 as an example in Figure 21) includes multiple bridging electrodes s112 for the first touch electrodes s11. The other touch electrode layer 1042 and 1044 (taking the second touch electrode layer 1044 as an example in Figure 21) includes multiple main electrodes s111 for the first touch electrodes s11 and multiple second touch electrodes s12. The touch insulating layer 1043 includes multiple vias, and the bridging electrode s112 and the main electrode s111 are electrically connected through the vias K in the touch insulating layer 1043.

[0218] Optionally, the second touch electrode s12 may also include a main electrode and a bridging electrode. The main electrode and the bridging electrode of the second touch electrode s12 may be located on the same touch routing layer or on different touch routing layers; this embodiment does not limit this.

[0219] For example, the bridging electrode s112 of the first touch electrode s11 is located in the first touch routing layer 1042, and the main electrode s111 of the first touch electrode s11, as well as the main electrode and bridging electrode of the second touch electrode s12, can be located in the second touch routing layer 1044. Alternatively, the main electrode s111 and bridging electrode s112 of the first touch electrode s11 are located in the same touch routing layer (e.g., in the first touch routing layer 1042), and the main electrode and bridging electrode of the second touch electrode s12 are located in another touch routing layer (e.g., in the second touch routing layer 1044). This application embodiment does not limit the arrangement relationship between the first touch electrode s11 and the second touch electrode s12.

[0220] Optionally, one of the first touch electrode s11 and the second touch electrode s12 is a transmitting (TX) electrode and the other is a sensing (RX) electrode.

[0221] Referring to Figure 20, a plurality of first touch electrodes s11 are arranged along a first direction X, and a plurality of second touch electrodes s12 are arranged along a second direction Y. Furthermore, the orthographic projections of the bridging electrodes s112 of the first touch electrodes s11 onto the substrate 1011 and the orthographic projections of the second touch electrodes s12 onto the substrate 1011 partially overlap. The first direction X and the second direction Y intersect, for example, the first direction X and the second direction Y are perpendicular. Optionally, the first direction X can be the pixel column direction of the display panel 101, and the second direction Y can be the pixel row direction of the display panel 101.

[0222] In this embodiment of the application, referring to Figures 4 and 20, the substrate 1011 further includes a peripheral region 1011b surrounding the display region 1011a. The first touch wiring layer 1042 and the second touch wiring layer 1044 also include touch signal lines s2, at least a portion of which is located in the peripheral region 1011b. The touch signal lines s2 can be connected to either the first touch electrode s11 or the second touch electrode s12.

[0223] Optionally, the touch film layer 104 may have multiple touch signal lines s2, a portion of which are connected to the first touch electrode s11, and another portion of which are connected to the second touch electrode s12.

[0224] Optionally, the display module 10 may also include multiple touch interfaces s3, which can be connected to touch signal lines s2. The touch interfaces s3 are also used to receive touch signals from the driving circuit.

[0225] Optionally, the driving circuit can be integrated onto a flexible circuit board, which can be connected to the touch interface s3. The touch interface s3 is further connected to the touch electrodes via touch signal lines s2. The touch interface s3 is used to bond the flexible circuit board to the display panel 101.

[0226] In this embodiment, referring to Figures 22 to 28, the touch film layer 104 further includes a touch protection layer 1045 located on the side of the second touch wiring layer 1044 away from the substrate 1011. The touch protection layer 1045 can be made of an organic material, such as an optical adhesive (OC). The flatness of the surface of the touch protection layer 1045 away from the substrate 1011 is higher than that of the surface of the second touch wiring layer 1044 away from the substrate 1011. By providing the touch protection layer 1045 on the side of the second touch wiring layer 1044 away from the substrate 1011, the flatness of the formed surface can be better when the color filter layer 102 or the dimming structure 103 is subsequently formed, reducing the fabrication difficulty.

[0227] Referring to Figures 22, 25, and 26, the first sub-dimming layer g1 of the dimming structure 103 and each filter unit 1022 are directly located above and in contact with the touch protection layer 1045. Referring to Figures 23, 24, 27, and 28, the first sub-dimming layer g1, the black matrix 1021, and each filter unit 1022 of the dimming structure 103 are directly located above and in contact with the touch protection layer 1045.

[0228] In this embodiment of the application, referring to FIG3 and FIG5 to FIG28, it can be seen that the display module 10 may further include an insulating protective layer 105. The insulating protective layer 105 may be located on the side of the color filter layer 102 and the dimming structure 103 away from the display panel 101, and cover the color filter layer 102 and the dimming structure 103.

[0229] By providing an insulating protective layer 105 in the display module 10, the color filter layer 102 or the dimming structure 103 can be prevented from being exposed, thus protecting the color filter layer 102 and the dimming structure 103. Optionally, the refractive index of the insulating protective layer 105 can be the same as that of the dimming structure 103; for example, the material of the insulating protective layer 105 and the material of the dimming structure 103 can be the same.

[0230] Figure 29 is a top view of the light-emitting region of a plurality of light-emitting units according to an embodiment of this application. Referring to Figure 29, it can be seen that the area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the second light-emitting unit 10121b projected onto the substrate 1011, and larger than the area of ​​the light-emitting region of the third light-emitting unit 10121c projected onto the substrate 1011. Furthermore, the area of ​​the light-emitting region of the second light-emitting unit 10121b projected onto the substrate 1011 can be equal to the area of ​​the light-emitting region of the third light-emitting unit 10121c projected onto the substrate 1011.

[0231] It should be noted that Figure 29 is used to illustrate one arrangement of the first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c. Of course, the first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c can also be arranged in other ways, such as a diamond arrangement, etc. This application does not specifically limit the arrangement of the first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c in the embodiments.

[0232] Optionally, referring to Figure 29, the orthographic projection of the light-emitting areas of the first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c onto the substrate 1011 can be circular. Alternatively, the orthographic projection of the light-emitting area of ​​each light-emitting unit onto the substrate 1011 can be square, hexagonal, octagonal, rhomboid, polygonal, near-circular, elliptical, etc. This application embodiment does not specifically limit the shape of the light-emitting area.

[0233] In summary, this application provides a display module comprising a display panel, a color filter layer, and a dimming structure. Because the refractive index of the dimming structure material differs from that of the filter unit material in the color filter layer, light emitted by the light-emitting unit can be reflected to the light-emitting area due to the difference in refractive index between the dimming structure and the filter unit materials, thus improving the luminous efficiency of the light-emitting unit and consequently enhancing the display effect of the display module. Furthermore, this application allows for the design of the thickness of the dimming structure surrounding the light-emitting areas of different light-emitting units on the display panel, based on the dimensions of the light-emitting areas of those units, ensuring both the luminous effect and luminous efficiency of the light-emitting units.

[0234] Figure 30 is a partial cross-sectional schematic diagram of another display module provided in an embodiment of this application. Referring to Figure 30, it can be seen that the display module 10 may include: a display panel 101, a color filter layer 102, and a dimming structure 103.

[0235] The display panel 101 includes a substrate 1011 and a light-emitting device layer 1012 located on one side of the substrate 1011. The substrate 1011 may include a display area 1011a, and the light-emitting device layer 1012 may include a plurality of light-emitting units 10121, which may be located in the display area 1011a of the substrate 1011.

[0236] A color filter layer 102 is located on the side of the light-emitting device layer 1012 away from the substrate 1011. The color filter layer 102 includes a black matrix 1021 and a plurality of filter units 1022 corresponding to the plurality of light-emitting units 10121. The black matrix 1021 includes black matrix openings 1021a corresponding to the plurality of light-emitting units 10121. The orthographic projection of the filter unit 1022 on the substrate 1011 is at least within the orthographic projection of the black matrix opening 1021a on the substrate 1011. Furthermore, the orthographic projection of the filter unit 1022 on the substrate 1011 covers the orthographic projection of the light-emitting area of ​​the light-emitting unit 10121 on the substrate 1011, allowing light emitted from the light-emitting unit 10121 to exit from the corresponding filter unit 1022.

[0237] The dimming structure 103 can be located on the side of the light-emitting device layer 1012 away from the substrate 1011. The refractive index of the material of the dimming structure 103 is different from that of the material of the filter unit 1022. The filter unit 1022 can be in contact with at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121, and at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121 is used to reflect the light emitted by the light-emitting unit 10121. In this embodiment, the reflection of light can be achieved by the difference in refractive index between the materials of the dimming structure 103 and the filter unit 1022. The at least a portion of the surface of the dimming structure 103 near the light-emitting area of ​​the light-emitting unit 10121 can refer to a portion or all of the side surface of the dimming structure 103 near the light-emitting unit 10121.

[0238] Optionally, the refractive index of the material of the dimming structure 103 is less than that of the material of the filter unit 1022. The light emitted by the light-emitting unit 10121 can first be incident on the filter unit 1022 and then on the dimming structure 103. When the light from the light-emitting unit 10121 shines from the filter unit 1022 onto the dimming structure 103, if the incident angle of the light is large, the interface between the dimming structure 103 and the filter unit 1022 can totally reflect the light. The totally reflected light can then exit to the light-emitting area of ​​the light-emitting unit 10121, thereby improving the luminous efficiency of the light-emitting unit 10121.

[0239] In this embodiment, the dimming structure 103 includes a plurality of dimming openings 103a corresponding to a plurality of filter units 1022. The filter units 1022 may be located within the corresponding dimming openings 103a, and the distance between the surface of the filter unit 1022 away from the substrate 1011 and the substrate 1011 is less than or equal to the distance between the surface of the dimming structure 103 away from the substrate 1011 and the substrate 1011.

[0240] That is, the filter unit 1022 can be completely disposed within the dimming opening 103a of the dimming structure 103, and the filter unit 1022 does not have a portion located on the side of the dimming structure 103 away from the substrate 1011. In this case, all parts of the filter unit 1022 are formed on the same surface, so the surface of the filter unit 1022 away from the substrate 1011 can be basically a flat surface, which makes the height of the edge and the middle of the filter unit 1022 consistent or close, avoiding the appearance of dot-like starbursts when the light-emitting unit 10121 emits light, and improving the light-emitting effect of the light-emitting unit 10121.

[0241] In addition, since the filter unit 1022 needs to be completely placed within the dimming opening 103a of the dimming structure 103, the thickness of the dimming structure 103 needs to be designed to be relatively thick. This can increase the surface area of ​​the contact between the dimming structure 103 and the filter unit 1022, so that the dimming structure 103 can reflect more light from the light-emitting unit 10121 to the light-emitting area of ​​the light-emitting unit 10121, which is beneficial to improving the luminous efficiency of the light-emitting unit 10121.

[0242] In this embodiment of the application, by designing the filter unit 1022 to be located within the corresponding dimming opening in the dimming structure 103, not only can the luminous efficiency of the light-emitting unit 10121 be improved, but also the surface flatness of the filter unit 1022 being far from the substrate 1011 can be avoided, which would cause the light-emitting unit 10121 to produce dot-like starbursts when emitting light, thus improving the luminous effect of the light-emitting unit 10121.

[0243] In summary, this application provides a display module comprising a display panel, a color filter layer, and a dimming structure. Because the refractive index of the dimming structure material differs from that of the filter unit material in the color filter layer, the light emitted by the light-emitting unit can be reflected to the light-emitting area due to the difference in refractive index between the dimming structure and the filter unit materials, thus improving the luminous efficiency of the light-emitting unit and consequently enhancing the display effect of the display module. Furthermore, since the filter unit is located within the dimming opening of the dimming structure, the dimming structure is relatively thick, and the surface of the filter unit away from the substrate is essentially flat. This increases the contact area between the dimming structure and the filter unit, allowing the dimming structure to reflect more light from the light-emitting unit to its light-emitting area, thereby improving the luminous efficiency of the light-emitting unit. Additionally, the edges and center of the filter unit can be made to have consistent or similar heights, preventing the light-emitting unit from displaying dot-like starbursts and improving its luminous effect.

[0244] Optionally, the thickness of the black matrix 1021 can range from 1 μm to 1.5 μm. The thickness of the filter unit 1022 can range from 2 μm to 4.5 μm.

[0245] Optionally, the orthographic projection of the black matrix opening 1021a of the black matrix 1021 onto the substrate 1011 covers the orthographic projection of the dimming opening 103a of the dimming structure 103 onto the substrate 1011. The area of ​​the orthographic projection of the black matrix opening 1021a onto the substrate 1011 is larger than the area of ​​the orthographic projection of the dimming opening 103a of the dimming structure 103 onto the substrate 1011. This ensures that light is reflected from the side of the dimming structure 103 and then illuminates the light-emitting area, rather than being absorbed by the black matrix 1021, effectively improving the luminous efficiency of the light-emitting unit 10121.

[0246] Optionally, the orthographic projection of the dimming opening 103a of the dimming structure 103 onto the substrate 1011 can cover the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011. The area of ​​the orthographic projection of the dimming opening 103a of the dimming structure 103 onto the substrate 1011 can be larger than the area of ​​the orthographic projection of the cutout area m2a of the pixel defining layer m2 onto the substrate 1011. This ensures that the light emitted by the light-emitting unit 10121 can effectively illuminate the side of the dimming structure 103, allowing the side of the dimming structure 103 to reflect the light from the light-emitting unit 10121, thereby improving the luminous efficiency of the light-emitting unit 10121.

[0247] Referring to Figure 30, the black matrix 1021 can be located on the side of the dimming structure 103 away from the substrate 1011, with the black matrix opening 1021a exposing a portion of the light-emitting area in the dimming structure 103 near the light-emitting unit 10121. Alternatively, referring to Figure 31, the black matrix 1021 is located on the side of the dimming structure 103 near the substrate 1011, with the dimming structure 103 covering the black matrix 1021 and a portion of the black matrix opening 1021a. This application embodiment does not specifically limit the stacking relationship between the black matrix 1021 and the dimming structure 103.

[0248] When the black matrix 1021 is located on the side of the dimming structure 103 close to the substrate 1011, the distance between the black matrix 1021 and the light-emitting unit 10121 in the direction perpendicular to the bearing surface of the substrate 1011 is small, which can further reduce the brightness attenuation of the light-emitting unit 10121, improve the light-emitting effect of the light-emitting unit 10121, and thus improve the display effect of the display panel 101.

[0249] In this embodiment, the thickness of the dimming structure 103 can range from 2.5 μm to 4.5 μm. That is, the dimming structure 103 can be relatively thick to ensure that the filter unit 1022 is completely located within the dimming opening of the dimming structure 103. Optionally, the thickness of the dimming structure 103 around the light-emitting areas of different light-emitting units 10121 can be the same, or it can be different; this embodiment does not limit this.

[0250] Optionally, the dimming structure 103 can be prepared in a single process. Alternatively, the dimming structure 103 can also be prepared by multiple (e.g., two) processes through film layer stacking.

[0251] Referring to Figures 32 and 33, taking the dimming structure 103 fabricated using a two-stage process as an example, the dimming structure 103 includes a third sub-dimming layer g3 and a fourth sub-dimming layer g4 stacked along a direction away from the substrate 1011. That is, the third sub-dimming layer g3 is closer to the substrate 1011 than the fourth sub-dimming layer g4. The orthographic projections of the third sub-dimming layer g3 and the fourth sub-dimming layer g4 onto the substrate 1011 are both located around the orthographic projection of the light-emitting area of ​​any light-emitting unit 10121 onto the substrate 1011.

[0252] The third sub-dimming layer g3 includes multiple third sub-dimming openings g3a disposed with respect to the multiple light-emitting units 10121. The fourth sub-dimming layer g4 includes multiple fourth sub-dimming openings g4a disposed corresponding to the multiple light-emitting units 10121. The filter unit 1022 is located at least within the third sub-dimming openings g3a.

[0253] For example, if the thickness of the filter unit 1022 is less than or equal to the thickness of the third sub-dimming layer g3, then the filter unit 1022 can be located within the third sub-dimming opening g3a. If the thickness of the filter unit 1022 is greater than the thickness of the third sub-dimming layer g3, and less than or equal to the sum of the thicknesses of the third sub-dimming layer g3 and the fourth sub-dimming layer g4, then the filter unit 1022 can be located within both the third sub-dimming opening g3a and the fourth sub-dimming opening g4a.

[0254] In this embodiment, the plurality of light-emitting units 10121 may include a first light-emitting unit 10121a, a second light-emitting unit 10121b, and a third light-emitting unit 10121c. The first light-emitting unit 10121a, the second light-emitting unit 10121b, and the third light-emitting unit 10121c emit different colors. For example, the first light-emitting unit 10121a may be a blue light-emitting unit 10121-B, meaning the first light-emitting unit 10121a emits blue light. One of the second light-emitting unit 10121b and the third light-emitting unit 10121c is a red light-emitting unit 10121-R, and the other is a green light-emitting unit 10121-G. The red light-emitting unit 10121-R emits red light, and the green light-emitting unit 10121-G emits green light.

[0255] The larger the area of ​​the light-emitting region of the light-emitting unit 10121 projected onto the substrate 1011 (or the aperture ratio of the light-emitting unit 10121), the higher the luminous efficiency of the light-emitting unit 10121. Furthermore, higher luminous efficiency of the light-emitting unit 10121 is beneficial for extending the lifespan of the light-emitting unit 10121.

[0256] Since the different light-emitting units 10121 in the display panel 101 have different lifespans due to their different emission colors, the lifespan of the light-emitting units 10121 with shorter lifespans can be extended by improving the luminous efficiency of the light-emitting units 10121, thereby extending the service life of the display panel 101.

[0257] Optionally, the display panel 101 may include a plurality of light-emitting units 10121, including a red light-emitting unit 10121-R, a green light-emitting unit 10121-G, and a blue light-emitting unit 10121-B. Typically, the blue light-emitting unit 10121-B has the shortest lifespan, the green light-emitting unit 10121-G has the longest lifespan, and the lifespan of the red light-emitting unit 10121-R is between that of the blue light-emitting unit 10121-B and the green light-emitting unit 10121-G.

[0258] In this embodiment, based on the lifespan relationship of the light-emitting units 10121 with different emission colors, it is necessary to extend the lifespan of the blue light-emitting unit 10121-B to prolong the lifespan of the display panel 101. Therefore, the area of ​​the light-emitting region of the blue light-emitting unit 10121-B projected onto the substrate 1011 is larger than the area of ​​the red light-emitting unit 10121-R projected onto the substrate 1011, and also larger than the area of ​​the green light-emitting unit 10121-G projected onto the substrate 1011. That is, the blue light-emitting unit 10121-B has a larger aperture ratio, which allows for higher luminous efficiency and thus extends its lifespan.

[0259] Optionally, the area of ​​the light-emitting region of the first light-emitting unit 10121a projected onto the substrate 1011 is larger than the area of ​​the light-emitting region of the second light-emitting unit 10121b projected onto the substrate 1011, and larger than the area of ​​the light-emitting region of the third light-emitting unit 10121c projected onto the substrate 1011. In this case, the first light-emitting unit 10121a can be a blue light-emitting unit 10121-B, that is, the light emitted by the first light-emitting unit 10121a is blue. One of the second light-emitting unit 10121b and the third light-emitting unit 10121c is a red light-emitting unit 10121-R, and the other is a green light-emitting unit 10121-G.

[0260] For example, the second light-emitting unit 10121b is a red light-emitting unit 10121-R, meaning the light emitted by the second light-emitting unit 10121b is red. The third light-emitting unit 10121c is a green light-emitting unit 10121G, meaning the light emitted by the third light-emitting unit 10121c is green. Alternatively, the second light-emitting unit 10121b is a green light-emitting unit 10121G, meaning the light emitted by the second light-emitting unit 10121b is green. The third light-emitting unit 10121c is a red light-emitting unit 10121-R, meaning the light emitted by the third light-emitting unit 10121c is red.

[0261] The specific design of the black matrix 1021 in this embodiment can be found in the description of the above embodiment. For example, the black matrix 1021 can be a set black light-blocking material, or it can be a superposition of filter units 1022 of different colors. The embodiments of this application will not be described in detail here.

[0262] The display panel 101 in this embodiment may also include a light-emitting circuit layer 1013 located on the side of the light-emitting device layer 1012 closer to the substrate 1011, and an encapsulation film layer 1014 located on the side of the light-emitting device layer 1012 away from the substrate 1011. The specific design of the light-emitting circuit layer 1013, the light-emitting device layer 1012, and the encapsulation film layer 1014 in the display panel 101 can be found in the description of the above embodiments, and will not be repeated here.

[0263] Optionally, referring to Figures 34 to 37, the display module 10 further includes a touch film layer 104 located on the side of the display panel 101 away from the substrate 1011, where the encapsulation film layer 1014 is located. The color filter layer 102 and the dimming structure 103 are both located on the side of the touch film layer 104 away from the display panel 101. The specific design of the touch film layer 104 can be found in the description of the above embodiments, and will not be repeated here.

[0264] Optionally, the touch film layer 104 may include a touch buffer layer 1041, a first touch wiring layer 1042, a touch insulating layer 1043, and a second touch wiring layer 1044, which are stacked sequentially. Further, the touch film layer 104 may also include a touch protective layer 1045 located on the side of the second touch wiring layer 1044 away from the substrate 1011. Figures 34 and 35 show an example where the touch film layer 104 does not include the touch protective layer 1045, while Figures 36 and 37 show an example where the touch film layer 104 includes the touch protective layer 1045.

[0265] Referring to Figure 34, the dimming structure 103 is in contact with the touch electrode lines in the second touch wiring layer 1044, and the dimming structure 103 covers the touch electrode lines in the second touch wiring layer 1044. In this case, the black matrix 1021 is not in direct contact with the touch electrode lines in the second touch wiring layer 1044. It is only necessary to ensure that the orthographic projection of the touch electrode lines in the second touch wiring layer 1044 on the substrate 1011 is within the orthographic projection of the black matrix 1021 on the substrate 1011, so as to avoid the touch electrode lines s1 affecting the light-emitting area of ​​the light-emitting unit 10121.

[0266] Referring to Figure 35, the black matrix 1021 and the touch electrode lines in the second touch wiring layer 1044 are in contact, and the black matrix 1021 covers the touch electrode lines in the second touch wiring layer 1044. In this case, the black matrix 1021 and the touch electrode lines in the second touch wiring layer 1044 are in direct contact, ensuring that the touch electrode lines in the second touch wiring layer 1044 are covered by the black matrix 1021, so as to avoid the touch electrode lines s1 affecting the light-emitting area of ​​the light-emitting unit 10121.

[0267] Referring to Figure 36, the dimming structure 103 and each filter unit 1022 are directly located above and in contact with the touch protection layer 1045. Referring to Figure 37, the dimming structure 103, the black matrix 1021, and each filter unit 1022 are all directly located above and in contact with the touch protection layer 1045.

[0268] Optionally, referring to Figures 30 to 37, the display module 10 further includes an insulating protective layer 105. The insulating protective layer 105 may be located on the side of the color filter layer 102 and the dimming structure 103 away from the display panel 101, and may cover the color filter layer 102 and the dimming structure 103.

[0269] By providing an insulating protective layer 105 in the display module 10, the color filter layer 102 or the dimming structure 103 can be prevented from being exposed, thus protecting the color filter layer 102 and the dimming structure 103. Optionally, the refractive index of the insulating protective layer 105 can be the same as that of the dimming structure 103; for example, the material of the insulating protective layer 105 and the material of the dimming structure 103 can be the same.

[0270] In summary, this application provides a display module comprising a display panel, a color filter layer, and a dimming structure. Because the refractive index of the dimming structure material differs from that of the filter unit material in the color filter layer, the light emitted by the light-emitting unit can be reflected to the light-emitting area due to the difference in refractive index between the dimming structure and the filter unit materials, thus improving the luminous efficiency of the light-emitting unit and consequently enhancing the display effect of the display module. Furthermore, since the filter unit is located within the dimming opening of the dimming structure, the dimming structure is relatively thick, and the surface of the filter unit away from the substrate is essentially flat. This increases the contact area between the dimming structure and the filter unit, allowing the dimming structure to reflect more light from the light-emitting unit to its light-emitting area, thereby improving the luminous efficiency of the light-emitting unit. Additionally, the edges and center of the filter unit can be made to have consistent or similar heights, preventing the light-emitting unit from displaying dot-like starbursts and improving its luminous effect.

[0271] Figure 38 is a schematic diagram of a display device provided in an embodiment of this application. Referring to Figure 38, the display device includes a power supply component 20 and a display module 10 as provided in the above embodiment. The power supply component 20 is connected to the display module 10 and is used to supply power to the display module 10.

[0272] Optionally, the display device can be an organic light-emitting diode (OLED) display device. The display device can be any suitable display device, including but not limited to mobile phones, tablets, televisions, monitors, laptops, digital photo frames, car navigation systems, and e-readers, as well as any product or component with display functionality.

[0273] Since the display device can have essentially the same technical effects as the display module described in the previous embodiments, for the sake of brevity, the technical effects of the display module will not be described again here.

[0274] The terminology used in the embodiments section of this application is for explaining the embodiments of this application only and is not intended to limit this application. Unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains.

[0275] The Description of Embodiments section of this application describes several embodiments; however, this description is exemplary and not restrictive, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0276] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive scheme as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive schemes to form another unique inventive scheme as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0277] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0278] In the accompanying drawings, the size of one or more constituent elements, the thickness of layers, or areas are sometimes exaggerated for clarity. Furthermore, the drawings schematically illustrate ideal examples, and this application is not limited to the shapes or numerical values ​​shown in the drawings.

[0279] The ordinal numbers "first," "second," and "third" used in this specification are for the purpose of avoiding confusion among the constituent elements, not for limiting the quantity. The term "multiple" in this application refers to two or more quantities.

[0280] The thickness range of the film layer in this specification is A to B, which means that the thickness is between A and B, including the two endpoints of A and B.

[0281] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of the described constituent elements. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0282] In this specification, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection, an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of the above terms in this application according to the specific circumstances.

[0283] In this specification, a transistor is a device that includes at least three terminals: a gate electrode, a drain electrode (drain terminal, drain region, or drain), and a source electrode (source terminal, source region, or source). A transistor has a channel region between the drain and source electrodes, and current can flow through the drain electrode, the channel region, and the source electrode. Note that in this specification, the channel region refers to the region through which current primarily flows.

[0284] In this specification, the first terminal of a transistor can be the drain electrode and the second terminal of a transistor can be the source electrode, or vice versa. In cases where transistors with opposite polarities are used or where the current direction changes during circuit operation, the functions of the "source electrode" and "drain electrode" are sometimes interchanged. Therefore, in this specification, the "source electrode" and "drain electrode" can be interchanged, and the "source terminal" and "drain terminal" can be interchanged.

[0285] In this specification, "connection" includes the situation where constituent elements are connected together by a component that has a certain electrical function. There are no particular limitations on the "component that has a certain electrical function," as long as it enables the transmission of electrical signals between the connected constituent elements. Examples of "components that have a certain electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0286] In this specification, the terms "film" and "layer" may be interchanged. For example, "conductive layer" may sometimes be replaced with "conductive film." Similarly, "insulating film" may sometimes be replaced with "insulating layer."

[0287] In this application, "thickness" and "height" refer to the vertical distance between the surface of the film layer away from the substrate and the surface of the film layer closer to the substrate.

[0288] In this specification, triangles, rectangles, trapezoids, pentagons, or hexagons are not strictly defined; they can be approximate triangles, rectangles, trapezoids, pentagons, or hexagons. Small deformations due to tolerances are possible, as are chamfered corners, curved edges, and other variations.

[0289] In this application, "about" means a value that is not strictly limited and allows for process and measurement errors.

Claims

1. A display module, characterized in that, The display module includes: The display panel includes a substrate and a light-emitting device layer located on one side of the substrate. The substrate includes a display area, and the light-emitting device layer includes a plurality of light-emitting units, all of which are located in the display area. The plurality of light-emitting units include a first light-emitting unit and a second light-emitting unit. A color filter layer is located on the side of the light-emitting device layer away from the substrate. The color filter layer includes a black matrix and a plurality of filter units corresponding to the plurality of light-emitting units. The black matrix includes a plurality of black matrix openings corresponding to the plurality of light-emitting units. The orthographic projection of the filter unit on the substrate is at least located within the orthographic projection of the black matrix opening on the substrate, and the orthographic projection of the filter unit on the substrate covers the orthographic projection of the light-emitting area of ​​the light-emitting unit on the substrate. And, a dimming structure located on the side of the light-emitting device layer away from the substrate, wherein the refractive index of the material of the dimming structure is different from that of the material of the filter unit, and at least a portion of the surfaces of the filter unit and the dimming structure are in contact with the light-emitting area of ​​the light-emitting unit; The dimming structure includes a first portion surrounding the light-emitting area of ​​the first light-emitting unit and a second portion surrounding the light-emitting area of ​​the second light-emitting unit, wherein the thickness of the first portion is greater than the thickness of the second portion.

2. The display module according to claim 1, characterized in that, The area of ​​the light-emitting region of the first light-emitting unit projected onto the substrate is larger than the area of ​​the light-emitting region of the second light-emitting unit projected onto the substrate.

3. The display module according to claim 1, characterized in that, The dimming structure includes a first sub-dimming layer and a second sub-dimming layer stacked along a direction away from the substrate. The orthographic projection of the second sub-dimming layer on the substrate is located around the orthographic projection of the light-emitting area of ​​the first light-emitting unit on the substrate. The first sub-dimming layer includes a plurality of first sub-dimming openings corresponding to the plurality of light-emitting units. The second sub-dimming layer includes a second sub-dimming opening corresponding to the first light-emitting unit. The orthographic projection of the second sub-dimming opening on the substrate at least partially overlaps with the orthographic projection of the first sub-dimming opening corresponding to the first light-emitting unit on the substrate. The plurality of filter units include: a first filter unit corresponding to the first light-emitting unit, and a second filter unit corresponding to the second light-emitting unit, wherein the first filter unit is located within the second sub-dimming opening and the first sub-dimming opening corresponding to the first light-emitting unit, and the second filter unit is located within the first sub-dimming opening corresponding to the second light-emitting unit; The first part includes the second sub-dimming layer and a portion of the first sub-dimming layer located on the side of the second sub-dimming layer near the substrate. The thickness of the first part is the sum of the thicknesses of the first sub-dimming layer and the second sub-dimming layer. The second part includes a portion of the first sub-dimming layer whose orthographic projections do not overlap with those of the second sub-dimming layer. The thickness of the second part is the thickness of the first sub-dimming layer.

4. The display module according to claim 3, characterized in that, The orthogonal projection of the black matrix on the substrate is located within the orthogonal projection of the first sub-dimming layer on the substrate, and the orthogonal projection of the opening of the black matrix on the substrate covers the orthogonal projections of the first sub-dimming opening and the second sub-dimming opening on the substrate. The first sub-dimming layer includes a target portion near the light-emitting area of ​​the first light-emitting unit. The orthographic projection of the target portion on the substrate overlaps with the orthographic projection of the black matrix opening corresponding to the first light-emitting unit on the substrate. The second sub-dimming layer is located at least on the side of the first sub-dimming layer away from the substrate.

5. The display module according to claim 4, characterized in that, The black matrix is ​​located on the side of the first sub-dimming layer away from the substrate, and the opening of the black matrix exposes a portion of the light-emitting area in the first sub-dimming layer that is close to the light-emitting unit.

6. The display module according to claim 5, characterized in that, The second sub-dimming layer is located on the side of the black matrix near the light-emitting area of ​​the first light-emitting unit, and the second sub-dimming layer and the black matrix are spaced apart or in contact.

7. The display module according to claim 5, characterized in that, The first filter unit covers the second sub-dimming layer and also covers a portion of the black matrix; The second filter unit covers a portion of the black matrix.

8. The display module according to claim 4, characterized in that, The black matrix is ​​located on the side of the first sub-dimming layer near the substrate, and the first sub-dimming layer covers the black matrix and a portion of the opening of the black matrix.

9. The display module according to claim 8, characterized in that, The first filter unit covers the second sub-dimming layer, or the first filter unit exposes a portion of the light-emitting area in the second sub-dimming layer that is far from the first light-emitting unit.

10. The display module according to claim 4, characterized in that, The first filter unit is also located on the side of the first sub-slimming layer and the second sub-slimming layer away from the substrate, and the second filter unit is also located on the side of the first sub-slimming layer; The black matrix is ​​located on the side of the plurality of filter units away from the substrate.

11. The display module according to claim 10, characterized in that, The first filter unit covers the second sub-dimming layer, and the orthographic projection of the first filter unit and the boundary between the first filter unit and the filter unit adjacent to the first filter unit onto the substrate is located on the side of the second sub-dimming layer on the substrate away from the orthographic projection of the light-emitting area of ​​the first light-emitting unit onto the substrate; or, The first filter unit exposes a portion of the light-emitting area of ​​the second sub-dimming layer that is far from the first light-emitting unit. The filter unit adjacent to the first filter unit is also located on the side of the second sub-dimming layer that is far from the substrate. The orthographic projection of the first filter unit and the filter unit adjacent to the first filter unit on the substrate overlaps with the orthographic projection of the second sub-dimming layer on the substrate.

12. The display module according to claim 1, characterized in that, The plurality of black matrix openings include: a first type of black matrix opening corresponding to the first light-emitting unit, and a second type of black matrix opening corresponding to the second light-emitting unit; The orthographic projection of the first part on the substrate is located within the opening of the first type of black matrix, and the orthographic projection of the first part on the substrate surrounds the orthographic projection of the light-emitting area of ​​the first light-emitting unit on the substrate. The orthographic projection of the second part on the substrate is located within the opening of the second type of black matrix, and the orthographic projection of the second part on the substrate surrounds the orthographic projection of the light-emitting area of ​​the second light-emitting unit on the substrate. The plurality of filter units include: a first filter unit corresponding to the first light-emitting unit, and a second filter unit corresponding to the second light-emitting unit; the first filter unit is located at least within the opening of the first type of black matrix and covers the first portion, and the second filter unit is located at least within the opening of the second type of black matrix and covers the second portion.

13. The display module according to claim 12, characterized in that, The first part includes a first sub-dimming unit and a second sub-dimming unit stacked together, and the second part includes a third sub-dimming unit; The first sub-dimming unit and the third sub-dimming unit are located on the same layer.

14. The display module according to any one of claims 1 to 13, characterized in that, The plurality of light-emitting units also includes a third light-emitting unit, the light-emitting color of which is different from the light-emitting color of the second light-emitting unit; The second part of the dimming structure is also located around the light-emitting area of ​​the third light-emitting unit.

15. The display module according to claim 14, characterized in that, The plurality of filter units include: a third filter unit corresponding to the third light-emitting unit, wherein the third filter unit is located within a first sub-dimming opening corresponding to the third light-emitting unit.

16. The display module according to claim 14, characterized in that, The first light-emitting unit is a blue light-emitting unit, and one of the second and third light-emitting units is a red light-emitting unit, while the other is a green light-emitting unit.

17. A display module, characterized in that, The display module includes: The display panel includes a substrate and a light-emitting device layer located on one side of the substrate. The substrate includes a display area, and the light-emitting device layer includes a plurality of light-emitting units, all of which are located in the display area. A color filter layer is located on the side of the light-emitting device layer away from the substrate. The color filter layer includes a black matrix and a plurality of filter units corresponding to the plurality of light-emitting units. The black matrix includes a plurality of black matrix openings corresponding to the plurality of light-emitting units. The orthographic projection of the filter unit on the substrate is at least located within the orthographic projection of the black matrix opening on the substrate, and the orthographic projection of the filter unit on the substrate covers the orthographic projection of the light-emitting area of ​​the light-emitting unit on the substrate. And, a dimming structure located on the side of the light-emitting device layer away from the substrate, wherein the refractive index of the material of the dimming structure is different from that of the material of the filter unit, and at least a portion of the surfaces of the filter unit and the dimming structure are in contact with the light-emitting area of ​​the light-emitting unit; The dimming structure includes a plurality of dimming openings corresponding to the plurality of filter units, wherein the filter units are located within the corresponding dimming openings, and the distance between the surface of the filter unit away from the substrate and the substrate is less than or equal to the distance between the surface of the dimming structure away from the substrate and the substrate.

18. The display module according to claim 17, characterized in that, The black matrix is ​​located on the side of the dimming structure away from the substrate, and the opening of the black matrix exposes a portion of the light-emitting region of the dimming structure near the light-emitting unit; or, The black matrix is ​​located on the side of the dimming structure closest to the substrate, and the dimming structure covers the black matrix and a portion of the opening of the black matrix.

19. The display module according to claim 17, characterized in that, The dimming structure includes a third sub-dimming layer and a fourth sub-dimming layer stacked in a direction away from the substrate, wherein the orthographic projections of the third sub-dimming layer and the fourth sub-dimming layer on the substrate are located around the orthographic projection of the light-emitting area of ​​any of the light-emitting units on the substrate. The third sub-dimming layer includes a plurality of third sub-dimming openings corresponding to the plurality of light-emitting units, and the fourth sub-dimming layer includes a plurality of fourth sub-dimming openings corresponding to the plurality of light-emitting units; the filter unit is located at least within the third sub-dimming opening.

20. The display module according to any one of claims 1 to 19, characterized in that, The display panel further includes an encapsulation film layer located on the side of the light-emitting device layer away from the substrate, the encapsulation film layer being used to encapsulate the plurality of light-emitting units; The display module further includes: a touch film layer located on the side of the encapsulation film layer away from the substrate in the display panel, and the color filter layer and the dimming structure are both located on the side of the touch film layer away from the display panel.

21. The display module according to claim 20, characterized in that, The touch film layer includes a touch buffer layer, a first touch wiring layer, a touch insulating layer and a second touch wiring layer stacked in sequence. Both the first touch trace layer and the second touch trace layer include touch electrode lines, and the orthographic projection of the touch electrode lines on the substrate is located within the orthographic projection of the black matrix on the substrate.

22. The display module according to claim 21, characterized in that, The first sub-dimming layer in the dimming structure is in contact with the touch electrode lines in the second touch wiring layer, and the first sub-dimming layer covers the touch electrode lines in the second touch wiring layer. or, The black matrix is ​​in contact with the touch electrode lines in the second touch wiring layer, and the black matrix covers the touch electrode lines in the second touch wiring layer.

23. A display device, characterized in that, The display device includes: a power supply component and a display module as described in any one of claims 1 to 22; The power supply component is connected to the display module, and the power supply component is used to supply power to the display module.

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