Display module, display device and manufacturing method thereof

Abstract

A display module has a functional device setting area and a main display area surrounding the functional device setting area; the functional device setting area is provided with a mounting hole, and the functional device setting area includes a reserved area surrounding the mounting hole; the side wall of the mounting hole is in a stepped or concave-convex structure. The display module includes a display panel, a first light shielding pattern, an adhesive layer and a second light shielding pattern; the first light shielding pattern is arranged on the light-emitting side of the display panel, and the orthographic projection of the first light shielding pattern on the display panel substantially coincides with the reserved area of the display panel; the adhesive layer is arranged on the side of the first light shielding pattern away from the display panel, the mounting hole penetrates through the display panel, the first light shielding pattern and the adhesive layer; and the second light shielding pattern covers at least the side wall of the mounting hole.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a display module, a display device and a manufacturing method thereof. BACKGROUND

[0002] With the rapid development of display technology, display devices have gradually spread in people's lives. Among them, electroluminescent display devices have the advantages of self-emission, low power consumption, wide viewing angle, fast response speed, high contrast ratio, etc., and are widely used in smart products such as mobile phones, televisions, notebook computers, etc. SUMMARY

[0003] In one aspect, a display module is provided. The display module has a functional device setting area and a main display area surrounding the functional device setting area; the functional device setting area is provided with a mounting hole, and the functional device setting area includes a reserved area surrounding the mounting hole; the side wall of the mounting hole is in a stepped or concave-convex structure. The display module includes a display panel, a first light shielding pattern, an adhesive layer, and a second light shielding pattern, the first light shielding pattern is arranged on the light-emitting side of the display panel, and the orthographic projection of the first light shielding pattern on the display panel substantially coincides with the reserved area of the display panel; the adhesive layer is arranged on the side of the first light shielding pattern away from the display panel, the mounting hole penetrates the display panel, the first light shielding pattern, and the adhesive layer; and the second light shielding pattern covers at least the side wall of the mounting hole.

[0004] In some embodiments, the display module further includes a circular polarizer, the circular polarizer is arranged between the display panel and the adhesive layer, and the first light shielding pattern is located on the side of the circular polarizer close to the display panel, and the mounting hole penetrates the circular polarizer.

[0005] In some embodiments, the mounting hole includes a plurality of sub-holes, the plurality of sub-holes are arranged along the thickness direction of the display panel, and the side walls of at least two adjacent sub-holes are not flush.

[0006] In some embodiments, the mounting hole includes a first sub-hole, a second sub-hole, and a third sub-hole, and along the thickness direction of the display panel and in the direction from the display panel to the adhesive layer, the first sub-hole, the second sub-hole, and the third sub-hole are arranged in sequence.

[0007] The first sub-hole has a smaller aperture near one end of the second sub-hole than the aperture near one end of the second sub-hole, and the sidewall of the first sub-hole forms a stepped structure with the sidewall of the second sub-hole; the second sub-hole has a smaller aperture near one end of the third sub-hole than the aperture near one end of the third sub-hole, and the sidewall of the second sub-hole forms a stepped structure with the sidewall of the third sub-hole; or, the second sub-hole has an aperture equal to the aperture of the third sub-hole near one end of the third sub-hole, and the sidewall of the second sub-hole is flush with the sidewall of the third sub-hole; or, the second sub-hole has a larger aperture near one end of the third sub-hole than the aperture near one end of the third sub-hole, and the sidewall of the third sub-hole is raised relative to the sidewall of the second sub-hole.

[0008] In some embodiments, the second light-shielding pattern includes a first sub-pattern covering the sidewall of the first sub-hole, a second sub-pattern covering the sidewall of the second sub-hole, and a third sub-pattern covering the sidewall of the third sub-hole; the boundary of the first sub-pattern near the sidewall of the first sub-hole is closer to the axis of the mounting hole than the boundary of the second sub-pattern near the sidewall of the second sub-hole; the boundary of the second sub-pattern near the sidewall of the second sub-hole is closer to the axis of the mounting hole than the boundary of the third sub-pattern near the sidewall of the third sub-hole; or, the boundary of the second sub-pattern near the sidewall of the second sub-hole is flush with the boundary of the third sub-pattern near the sidewall of the third sub-hole; or, the boundary of the second sub-pattern near the sidewall of the second sub-hole is farther away from the axis of the mounting hole than the boundary of the third sub-pattern near the sidewall of the third sub-hole.

[0009] In some embodiments, the display module further includes a circular polarizer; the first sub-hole penetrates the display panel and the first light-shielding pattern, the second sub-hole penetrates the circular polarizer, and the third sub-hole penetrates the adhesive layer.

[0010] In some embodiments, the display module further includes a first protective layer disposed on the side of the adhesive layer away from the display panel; the mounting hole further includes a fourth sub-hole penetrating the first protective layer, the fourth sub-hole has a larger aperture near one end of the third sub-hole than the aperture near one end of the third sub-hole, and the sidewall of the fourth sub-hole forms a stepped structure with the sidewall of the third sub-hole.

[0011] In some embodiments, the second light-shielding pattern further includes a fourth sub-pattern covering the part of the surface of the adhesive layer away from the display panel that is beyond the first protective layer.

[0012] In some embodiments, the fourth sub-pattern is integrally arranged with a portion of the second light-shielding pattern covering the sidewall of the mounting hole.

[0013] In some embodiments, a normal projection of the fourth sub-pattern on the display panel is located within the reserved area of the display panel, or the reserved area of the display panel substantially coincides.

[0014] In some embodiments, the display module further comprises a second protective layer arranged on a side of the display panel away from the adhesive layer; the mounting hole further comprises a fifth sub-hole penetrating through the second protective layer, an aperture of the fifth sub-hole near an end of the first sub-hole is equal to an aperture of the first sub-hole near the fifth sub-hole, and a sidewall of the fifth sub-hole is flush with the sidewall of the first sub-hole.

[0015] In some embodiments, the second light-shielding pattern further comprises a fifth sub-pattern covering the sidewall of the fifth sub-hole.

[0016] In some embodiments, a surface of the second light-shielding pattern near the axis of the mounting hole is flat.

[0017] In some embodiments, a surface of the second light-shielding pattern near the axis of the mounting hole is substantially parallel to the axis of the mounting hole.

[0018] In some embodiments, the first light-shielding pattern is connected with the second light-shielding pattern.

[0019] In some embodiments, the material of the first light-shielding pattern and the second light-shielding pattern is black ink or black hot melt adhesive.

[0020] In another aspect, a manufacturing method of a display device is provided. The manufacturing method of the display device comprises:

[0021] providing a display panel comprising a functional device arrangement area and a main display area surrounding the functional device arrangement area; manufacturing a first light-shielding pattern on a light-outgoing side of the display panel, a normal projection of the first light-shielding pattern on the display panel substantially coincides with the functional device arrangement area of the display panel; sequentially arranging a circular polarizer, an adhesive layer and a first protective layer on the light-outgoing side of the display panel on which the first light-shielding pattern is formed; opening a hole in the functional device arrangement area of the display panel to form an initial hole penetrating through the display panel, the first light-shielding pattern, the circular polarizer, the adhesive layer and the first protective layer; etching a sidewall of the initial hole so that the sidewall of the initial hole is in a stepped or concave-convex structure to form a mounting hole; and manufacturing a second light-shielding pattern covering at least the sidewall of the mounting hole.

[0022] In some embodiments, the etching of the sidewall of the initial hole is performed in a stepwise or uneven manner to form the mounting hole, including: etching the display panel, the circular polarizer, the adhesive layer and the first protective layer multiple times with a laser beam so that the sidewall of the initial hole is etched in a stepwise or uneven manner; or, converging at least two focal points of at least two laser beams on at least two of the display panel, the circular polarizer, the adhesive layer and the first protective layer respectively, and synchronously etching the display panel, the circular polarizer, the adhesive layer and the first protective layer with the at least two laser beams so that the sidewall of the initial hole is etched in a stepwise or uneven manner.

[0023] In some embodiments, before the opening of the functional device arrangement area of the display panel, the manufacturing method further includes: arranging a second protective layer on the side of the display panel away from the adhesive layer; and the initial hole formed by the opening of the functional device arrangement area of the display panel also penetrates through the second protective layer.

[0024] In some embodiments, before the manufacturing of the second light-shielding pattern, the manufacturing method further includes: arranging a process film on the side of the second protective layer away from the display panel. After the manufacturing of the sidewall of the mounting hole, the manufacturing method further includes: removing the process film.

[0025] In some embodiments, after the manufacturing of the second light-shielding pattern, the manufacturing method further includes: removing the first protective layer, and arranging a cover plate on the side of the adhesive layer away from the display panel.

[0026] In another aspect, a display device is provided. The display device includes a display module and a cover plate. The display module has a functional device arrangement area and a main display area surrounding the functional device arrangement area. The functional device arrangement area includes a mounting hole and a reserved area surrounding the mounting hole. The sidewall of the mounting hole is in a stepwise or uneven structure. The display module includes a display panel, a first light-shielding pattern, an adhesive layer, a second light-shielding pattern and a cover plate. The first light-shielding pattern is arranged on the light-emitting side of the display panel. The orthographic projection of the first light-shielding pattern on the display panel substantially coincides with the reserved area of the display panel. The adhesive layer is arranged on the side of the first light-shielding pattern away from the display panel. The mounting hole penetrates through the adhesive layer. The second light-shielding pattern covers at least the sidewall of the mounting hole. The cover plate is arranged on the side of the adhesive layer away from the display panel.

[0027] In some embodiments, the second light-shielding pattern includes a fourth sub-pattern. The fourth sub-pattern covers a portion of the surface of the adhesive layer away from the display panel around the mounting hole. One side of the cover plate close to the display panel is in contact with the surface of the fourth sub-pattern.

[0028] In some embodiments, the display module further comprises a circular polarizer disposed between the display panel and the adhesive layer, and the first light-shielding pattern is located on a side of the circular polarizer close to the display panel, and the mounting hole penetrates through the circular polarizer.

[0029] In some embodiments, the display module further comprises a second protective layer disposed on a side of the display panel away from the adhesive layer, and the mounting hole penetrates through the second protective layer. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments of the present disclosure. Obviously, the drawings in the following description are only some drawings of the embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size, actual process, actual time sequence, etc. of the products, methods, signals, etc. involved in the embodiments of the present disclosure.

[0031] Figure 1 A schematic diagram of a basic structure of a display device according to some embodiments;

[0032] Figure 2 An exploded view of a display device according to some embodiments;

[0033] Figure 3 A partial cross-sectional view of a display device according to some embodiments in the related art;

[0034] Figure 4A A partial cross-sectional view of a display device according to some embodiments in the related art; Figure 2 A partial cross-sectional view of a display device according to some embodiments in the related art;

[0035] Figure 4B A partial cross-sectional view of a display device according to some embodiments in the related art; Figure 2 A partial cross-sectional view of a display module according to some embodiments in the related art;

[0036] Figure 4C A partial cross-sectional view of a display module according to some embodiments in the related art; Figure 2 A partial cross-sectional view of a display module according to some embodiments in the related art;

[0037] Figure 5A A partial cross-sectional view of a display module according to some embodiments in the related art; Figure 2 A partial cross-sectional view of a display module according to some embodiments in the related art;

[0038] Figure 5B A partial cross-sectional view of a display module according to some embodiments in the related art; Figure 2 A partial cross-sectional view of a display module according to some embodiments in the related art;

[0039] Figure 5C FIG. 2 shows a partial cross-sectional view of the basic structure of another display module along the direction II' according to some embodiments; Figure 2

[0040] Figure 6A FIG. 3 shows a partial cross-sectional view of another display device along the direction II' according to some embodiments; Figure 2

[0041] Figure 6B FIG. 4 shows a partial cross-sectional view of another display module along the direction II' according to some embodiments; Figure 2

[0042] Figure 6C FIG. 5 shows a partial cross-sectional view of the basic structure of another display module along the direction II' according to some embodiments; Figure 2

[0043] Figure 7 FIG. 6 shows a partial cross-sectional view of another display module along the direction II' according to some embodiments; Figure 2

[0044] Figure 8 FIG. 7 shows a flow chart of a method for manufacturing a display device according to some embodiments;

[0045] Figure 9 FIG. 8 shows a flow chart of a method for manufacturing another display device according to some embodiments. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0047] ​​​​​Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an open, inclusive sense as "including, but not limited to." As used throughout the description and the claims, the term "one embodiment," "some embodiments," "an exemplary embodiment," "example," "specific example," or "some examples" means that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the disclosure, but not necessarily all embodiments or examples. The above-mentioned terms do not necessarily refer to the same embodiment or example. Furthermore, the described features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0048] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0049] As used herein, "about", "approximately", or "around" includes the recited value and the average value within an acceptable range of deviation from the particular value, as determined by one of ordinary skill in the art taking into account the measurement being discussed and the error associated with measuring a particular quantity (i.e., the limitations of the measurement system).

[0050] Exemplary embodiments are described herein with reference to cross-sectional and / or plan view illustrations that are idealized exemplary illustrations. In the description of the exemplary embodiments, the thickness of the layers and regions are exaggerated for clarity. Accordingly, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region illustrated as a rectangle will typically have rounded or curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

[0051] As Figure 1As shown, some embodiments of the present disclosure provide a display device 100, which can be a television, a mobile phone, a computer, a laptop computer, a tablet computer, a personal digital assistant (PDA), a car computer, etc.

[0052] like Figure 1 As shown, the display device 100 includes a display panel 1 , a frame 2 , a cover plate 3 , a circuit board 4 and other electronic components.

[0053] The longitudinal section of the frame 2 is U-shaped, the cover plate 3 is arranged on the opening side of the frame 2, the display panel 1, the circuit board 4 and other electronic components are all arranged in the frame 2, and the circuit board 4 is arranged on the side of the display panel 1 away from the cover plate 3.

[0054] In some embodiments, as Figure 2 As shown, the display device 100 further includes a circular polarizer 5 located between the cover plate 3 and the display panel 1. The circular polarizer 5 is configured to reduce the reflected light of the external light after being reflected by the metal structure in the display panel 1. Figure 3 The circular polarizer 5 can be attached to the cover plate 3 through the adhesive layer 6; for example, the circular polarizer 5 is attached to the cover plate 3 through optical glue.

[0055] In some embodiments, as Figure 2 As shown, the display panel 1 has a display area A and a peripheral area B located on at least one side of the display area A1. Figure 2 The peripheral area B surrounding the display area A is taken as an example for illustration.

[0056] The display area A is an area for displaying images; the peripheral area B is an area for not displaying images, and the peripheral area B is configured to set a display driving circuit, for example, a gate driving circuit and a source driving circuit.

[0057] In some embodiments, as Figure 2 and Figure 3 As shown, the display area A includes a functional device setting area A2 and a main display area A1 surrounding the functional device setting area, and the main display area A1 is configured to set a plurality of sub-pixels P; an installation hole H is set in the functional device setting area A2, and the functional device setting area A2 includes a reserved area A21 surrounding the installation hole H.

[0058] Among them, at least one functional device can be set in the mounting hole H; the functional device can be a camera, an infrared sensor, a proximity sensor, an eye tracking module, a face recognition module, etc. For example, Figure 2 As shown, the functional device setting area A2 is a camera setting area, and the functional device is a camera.

[0059] SeeFigure 4A and Figure 4B The display panel 1 includes a display substrate 11 and an encapsulation layer 12 for encapsulating the display substrate 11 .

[0060] Here, the encapsulation layer 12 may be an encapsulation film or an encapsulation substrate.

[0061] In some embodiments, as Figure 4B As shown, each sub-pixel P (see Figure 2 ) each includes a light-emitting device and a pixel driving circuit disposed on a substrate 111. The pixel driving circuit includes multiple thin-film transistors 112. The thin-film transistors 112 include an active layer, a source electrode, a drain electrode, a gate electrode, and a gate insulating layer. The source electrode and the drain electrode are respectively in contact with the active layer. In a direction perpendicular to and away from the substrate 111, the light-emitting device includes a first electrode 113, a light-emitting functional layer 114, and a second electrode 115.

[0062] Here, the first electrode 113 is the anode of the light-emitting device, and the second electrode 115 is the cathode of the light-emitting device; or the first electrode 113 is the cathode of the light-emitting device, and the second electrode 115 is the anode of the light-emitting device.

[0063] For example, Figure 4B As shown, the first electrode 113 is an anode of the light emitting device, and the second electrode 115 is a cathode of the light emitting device. The first electrode 113 is electrically connected to a source or drain of a thin film transistor 112 serving as a driving transistor among the plurality of thin film transistors 112.

[0064] The display substrate 11 further includes a pixel defining layer 116 . The pixel defining layer 116 includes a plurality of opening regions, and one light emitting device 312 is disposed in one of the opening regions.

[0065] In some embodiments, the light-emitting functional layer 114 includes only a light-emitting layer. In other embodiments, the light-emitting functional layer 114 includes, in addition to the light-emitting layer, at least one of an electron transporting layer (ETL), an electron injection layer (EIL), a hole transporting layer (HTL), and a hole injection layer (HIL).

[0066] like Figure 4B As shown, the display substrate 11 further includes a first planar layer 117 disposed between the thin film transistor 112 and the first electrode 113 .

[0067] likeFigure 4B As shown, the display substrate 11 further includes a second planar layer 118 disposed between the encapsulation layer 12 and the second electrode 115.

[0068] In a related technology, as Figure 3 As shown, the cover plate 3 is provided with a light shielding pattern 7' near the surface of the display panel 1, the inner boundary of the light shielding pattern 7' is projected onto the inside of the inner boundary of the reserved area A21 on the display panel 1 to prevent light leakage at the mounting hole H; the outer boundary of the light shielding pattern 7' is projected onto the outside of the outer boundary of the reserved area A21 or approximately coincides with the outer boundary of the reserved area A21 to shield the side wall burr of the mounting hole H and the cutting defects such as cracks of the edge of the mounting hole H.

[0069] However, in the manufacturing process of the display device 100 in the related technology, the cover plate 2 and the circular polarizer 5 need to be aligned once, and the process precision of the light shielding pattern 7' provided on the cover plate 3 is required to be higher. In this case, in order to ensure that the light shielding pattern 7' can shield the side wall burr of the mounting hole H and the cutting defects such as cracks of the reserved area A21 around the mounting hole H, and prevent light leakage at the mounting hole H, the width of the light shielding pattern 7' cannot be designed to be very small (the limit of the width of the light shielding pattern 7' can be 0.5mm), which causes the display area to be reduced and the screen ratio to be decreased.

[0070] Some embodiments of the present disclosure provide a display module 1000, as shown in Figure 4B , Figure 5B and Figure 6B , having a functional device setting area A2 and a main display area A1 surrounding the functional device setting area A2; the functional device setting area A2 is provided with a mounting hole H, and the functional device setting area A2 includes a reserved area A21 surrounding the mounting hole H; the side wall of the mounting hole H is in a stepped or concave-convex structure.

[0071] As shown in Figure 4B and Figure 4C , the display module 1000 includes a display panel 1, a first light shielding pattern 7, an adhesive layer 6 and a second light shielding pattern 8, the first light shielding pattern 7 is disposed on the light-emitting side of the display panel 1, the orthographic projection of the first light shielding pattern 7 on the display panel 1 is approximately coincident with the reserved area A21 of the display panel 1 to shield the cutting defects such as cracks of the reserved area A21 around the mounting hole H; the adhesive layer 6 is disposed on the side of the first light shielding pattern 7 away from the display panel 1, and the mounting hole H penetrates the display panel 1, the first light shielding pattern 7 and the adhesive layer 6; the second light shielding pattern 8 covers at least the side wall of the mounting hole H to shield the side wall burr of the mounting hole H and effectively prevent light leakage at the mounting hole H.

[0072] As can be seen from the above, in the display module 1000 provided by some embodiments of the present disclosure, the first light-shielding pattern 7 is arranged on the light-emitting side of the display panel 1, and the bonding layer 6 is arranged on the side of the first light-shielding pattern 7 away from the display panel 1. In this way, the first light-shielding pattern 7 can be directly formed on the reserved area A21 on the display panel 1 by using a deposition process (for example, evaporation) or a photolithography process, which can reduce the process difficulty compared with arranging the first light-shielding pattern 7 on the cover plate 3. Based on this, compared with the related art, the width of the first light-shielding pattern 7 in the display module 1000 provided by some embodiments of the present disclosure can be designed to be smaller (the width of the first light-shielding pattern 7 is approximately 0.3 mm), thereby increasing the display area.

[0073] In addition, the side wall of the mounting hole H has a stepped or concave-convex structure, which can increase the contact area between the second light-shielding pattern 8 and the mounting hole H, strengthen the adhesion of the second light-shielding pattern 8 to the mounting hole H, and reduce the risk of the second light-shielding pattern 8 being separated.

[0074] In some embodiments, the material of the first light-shielding pattern 7 and the second light-shielding pattern 8 is black ink or black hot melt adhesive. Of course, it is also feasible to select other black light-shielding materials for the material of the first light-shielding pattern 7 and the second light-shielding pattern 8, and the embodiments of the present disclosure are not limited thereto.

[0075] In some embodiments, as shown in FIGS. 1 to 3, the display module 1000 further includes a bonding layer 6 arranged on the side of the first light-shielding pattern 7 away from the display panel 1. Figure 4C , Figure 5C and Figure 6C In some embodiments, as shown in FIGS. 1 to 3, the display module 1000 further includes a bonding layer 6 arranged on the side of the first light-shielding pattern 7 away from the display panel 1.

[0076] In order to prevent external ambient light from interfering with the image to be displayed, in some embodiments, the display module 1000 described above further includes a circular polarizer 5, the circular polarizer 5 is arranged between the display panel 1 and the bonding layer 6, the first light-shielding pattern 7 is located on the side of the circular polarizer 5 close to the display panel 1, and the mounting hole H penetrates the circular polarizer 5. In this case, the circular polarizer 5 can effectively prevent external ambient light from interfering with the image to be displayed.

[0077] In some embodiments, as shown in FIGS. 1 to 3, the display module 1000 further includes a bonding layer 6 arranged on the side of the first light-shielding pattern 7 away from the display panel 1. Figure 7 In some embodiments, as shown in FIGS. 1 to 3, the display module 1000 further includes a bonding layer 6 arranged on the side of the first light-shielding pattern 7 away from the display panel 1. In some embodiments, as shown in FIGS. 1 to 3, the display module 1000 further includes a bonding layer 6 arranged on the side of the first light-shielding pattern 7 away from the display panel 1.

[0078] In some embodiments, as shown in Figure 4C , Figure 5C and Figure 6C , the mounting hole H comprises a plurality of sub-holes arranged along the thickness direction of the display panel 1, and the side walls of at least two adjacent sub-holes are not flush.

[0079] It should be noted that the surface of the side wall of each sub-hole is flat, and the side wall of each sub-hole can be substantially parallel to the thickness direction of the display panel 1 (see Figure 4B , Figure 5B and Figure 6B ), or the side wall of each sub-hole can form an angle with the thickness direction of the display panel 1 (see Figure 4C , Figure 5C and Figure 6C ). Among them, in the case where the side wall of each sub-hole forms an angle with the thickness direction of the display panel 1, the difference between the maximum aperture and the minimum aperture of each sub-hole is 30 μm to 100 μm.

[0080] Exemplarily, as shown in Figure 4C , Figure 5C and Figure 6C , the mounting hole H comprises a first sub-hole H1, a second sub-hole H2 and a third sub-hole H3, and the first sub-hole H1, the second sub-hole H2 and the third sub-hole H3 are arranged in sequence along the thickness direction of the display panel 1 and the direction of the display panel 1 pointing to the adhesive layer 6.

[0081] Correspondingly, as shown in Figure 4C , Figure 5C and Figure 6C , the second light shielding pattern 8 comprises a first sub-pattern 81 covering the side wall of the first sub-hole H1, a second sub-pattern 82 covering the side wall of the second sub-hole H2, and a third sub-pattern 83 covering the side wall of the third sub-hole H3.

[0082] In some embodiments, as shown in Figure 4C , the aperture of the first sub-hole H1 near one end of the second sub-hole H2 is smaller than the aperture of the second sub-hole H2 near one end of the first sub-hole H1, and the side wall of the first sub-hole H1 forms a stepped structure with the side wall of the second sub-hole H2; the aperture of the second sub-hole H2 near one end inside the third sub-hole H3 is smaller than the aperture of the third sub-hole H3 near one end of the second sub-hole H2, and the side wall of the second sub-hole H2 forms a stepped structure with the side wall of the third sub-hole H3. Exemplarily, the aperture of the first sub-hole H1 near one end of the second sub-hole H2 is 50 μm to 150 μm smaller than the aperture of the second sub-hole H2 near one end of the first sub-hole H1, and the aperture of the second sub-hole H2 near one end inside the third sub-hole H3 is 50 μm to 150 μm smaller than the aperture of the third sub-hole H3 near one end of the second sub-hole H2.

[0083] Correspondingly, as shown inFigure 4C As shown in FIG. 8, the boundary of the side wall of the first sub-hole H1 close to the second sub-hole H2 is closer to the axis of the mounting hole H than the boundary of the side wall of the second sub-hole H2 close to the first sub-hole H1; the boundary of the side wall of the second sub-hole H2 close to the third sub-hole H3 is closer to the axis of the mounting hole H than the boundary of the side wall of the third sub-hole H3 close to the second sub-hole H2.

[0084] In some other embodiments, as shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3. Figure 5C As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3.

[0085] As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3. Figure 5C As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3.

[0086] Figure 6C As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3.

[0087] As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3. Figure 6C As shown in FIG. 9, the hole diameter of the first sub-hole H1 close to one end of the second sub-hole H2 is smaller than the hole diameter of the second sub-hole H2 close to one end of the first sub-hole H1, and the side wall of the first sub-hole H1 is flush with the side wall of the second sub-hole H2; the hole diameter of the second sub-hole H2 close to one end of the third sub-hole H3 is equal to the hole diameter of the third sub-hole H3 close to one end of the second sub-hole H2, and the side wall of the second sub-hole H2 is flush with the side wall of the third sub-hole H3.

[0088] ​The display panel 1 is provided with multiple layers of inorganic films. Compared with organic films, the inorganic films are more fragile. During the process of opening holes in the display panel 1, the edges of the holes corresponding to the inorganic films are prone to cracks. Based on this, in some embodiments, as shown in Figure 4C 、 5C and Figure 6C , the first sub-hole H1 penetrates the display panel 1 and the first light shielding pattern 7, the second sub-hole H2 penetrates the circular polarizer 5, and the third sub-hole H3 penetrates the adhesive layer 6.

[0089] In this case, the display panel 1 only needs to be opened once, and the side walls of the sub-holes corresponding to the display panel 1 do not need to be cut, reducing the risk of cracks at the edges of the sub-holes corresponding to the display panel 1. The width of the reserved area A21 of the display panel 1 can be designed to be narrower.

[0090] It should be noted that in the embodiments of the present disclosure, the film layers penetrated by the first sub-hole H1, the second sub-hole H2, and the third sub-hole H3 are not limited thereto.

[0091] In some embodiments, as shown in Figure 4B 、 Figure 5B and Figure 6B , the display module 1000 further includes a first protective layer 9, which is arranged on the side of the adhesive layer 6 away from the display panel 1. The first protective layer 9 protects the surface of the side of the adhesive layer 6 away from the display panel 1.

[0092] In order to manufacture the display device 100, the first protective layer 9 of the above-mentioned display module 1000 needs to be peeled off in the subsequent process to attach the cover plate 3 to the adhesive layer. Based on this, the first protective layer 9 can be a release film, which is easy to peel off.

[0093] On this basis, as shown in Figure 4C 、 Figure 5C and Figure 6C , the mounting hole H further includes a fourth sub-hole H4 penetrating the first protective layer 9. The aperture of the end of the fourth sub-hole H4 close to the third sub-hole H3 is larger than the aperture of the end of the third sub-hole H3 close to the fourth sub-hole H4. The side wall of the fourth sub-hole H4 and the side wall of the third sub-hole H3 form a stepped structure. For example, the aperture of the end of the fourth sub-hole H4 close to the third sub-hole H3 is 100 μm-300 μm larger than the aperture of the end of the third sub-hole H3 close to the fourth sub-hole H4.

[0094] Correspondingly, as shown in Figure 4C 、 Figure 5C and Figure 6CAs shown, the second light-shielding pattern 8 further includes a fourth sub-pattern 84, which covers a portion of the surface of the bonding layer 6 away from the display panel 1 beyond the first protective layer 9. For example, the orthographic projection of the fourth sub-pattern 84 on the display panel 1 is located within the reserved area A21 of the display panel 1; for another example, the orthographic projection of the fourth sub-pattern 84 on the display panel 1 substantially coincides with the reserved area A21 of the display panel.

[0095] In this case, since the fourth sub-pattern 84 also has a large-area adhesion with the bonding layer 6, the risk of the first protective layer 9 being pulled off at the contact position with the fourth sub-pattern 84 can be reduced during the peeling of the first protective layer 9, facilitating the tearing-off.

[0096] In addition, the fourth sub-pattern 84 can also shield the cracks of the edges of the sub-holes corresponding to the reserved area A21 of the side of the display panel 1 away from the first light-shielding pattern 7, and further reduce the risk of light leakage.

[0097] In the preparation of the fourth sub-pattern 84, the fourth sub-pattern 84 is integrally arranged with the portion of the second light-shielding pattern 8 covering the side wall of the mounting hole H, which can simplify the process and reduce the manufacturing cost.

[0098] In some embodiments, as shown in Figure 4B , Figure 5B and Figure 6B , the display module 1000 further includes a second protective layer 10 arranged on the side of the display panel 1 away from the bonding layer 6 to support and protect the display panel 1.

[0099] On this basis, as shown in Figure 4C , Figure 5C and Figure 6C , the mounting hole H further includes a fifth sub-hole H5 penetrating through the second protective layer 10, the aperture of the fifth sub-hole H5 near one end of the first sub-hole H1 is equal to the aperture of the first sub-hole H1 near the fifth sub-hole H5, and the side wall of the fifth sub-hole H5 is flush with the side wall of the first sub-hole H1.

[0100] Correspondingly, as shown in Figure 4C , Figure 5C and Figure 6C , the second light-shielding pattern further includes a fifth sub-pattern covering the side wall of the fifth sub-hole.

[0101] In some embodiments, as shown in Figure 4C , Figure 5C and Figure 6C , the surface of the second light-shielding pattern 8 near the axis of the mounting hole H is flat to reduce the adverse interference of the second light-shielding pattern 8 on the external light received by the opening at one end of the display side of the display panel 1, and ensure that more external light can enter the functional device through the mounting hole H.

[0102] In addition, the surface of the second light-shielding pattern 8 close to the axis of the mounting hole H is substantially parallel to the axis of the mounting hole H. That is, the inner diameter of the second light-shielding pattern 8 is approximately equal, and the external light received by the opening corresponding to one end of the display side of the display panel 1 can mostly enter the functional device through the mounting hole H, so that sufficient external light can enter the functional device through the mounting hole H in the case that the functional device setting area A2 occupies a smaller display area.

[0103] Some embodiments of the present disclosure also provide a manufacturing method of the display device 100, as shown in the following S100-S600. Figure 8

[0104] S100, providing a display panel 1, the display panel 1 comprising a functional device setting area A2 and a main display area A1 surrounding the functional device setting area A2.

[0105] S200, manufacturing a first light-shielding pattern 7 on the light-out side of the display panel 1, the orthographic projection of the first light-shielding pattern 7 on the display panel 1 substantially coincides with the functional device setting area A2 of the display panel 1.

[0106] Exemplarily, the first light-shielding film is formed on the light-out side of the display panel 1 by coating, and then the first light-shielding pattern 7 is obtained by sequentially exposing, developing and etching, the orthographic projection of the first light-shielding pattern 7 on the display panel 1 substantially coincides with the functional device setting area A2 of the display panel 1.

[0107] S300, sequentially arranging a circular polarizer 5, an adhesive layer 6 and a first protective layer 9 on the light-out side of the display panel 1 with the first light-shielding pattern 7.

[0108] Exemplarily, the circular polarizer 5 can be adhered to the display panel 1 and the first light-shielding pattern 7 on the side of the circular polarizer 5 away from the display panel 1 by adhesion; the adhesive layer 6 and the first protective layer 9 are integrally provided and directly adhered to the surface of the circular polarizer 5 away from the display panel 1.

[0109] S400, opening a hole in the functional device setting area A2 of the display panel 1 to form an initial hole, the initial hole penetrating through the display panel 1, the first light-shielding pattern 7, the circular polarizer 5, the adhesive layer 6 and the first protective layer 9.

[0110] Exemplarily, the focal point of a laser beam is converged on the side of the display panel 1 away from the adhesive layer 6 on the side of the first protective layer 9 away from the display panel 1, and the first protective layer 9, the adhesive layer 6, the circular polarizer 5, the first light-shielding pattern 7 and the display panel 1 are cut to form the initial hole.

[0111] ​For example, a pulse femtosecond laser is used to emit laser light, the frequency of the laser light is 500 KHZ-800 KHZ, the corresponding cutting speed is 300 mm / s-1500 mm / s, and the initial hole is formed by cutting 30-100 times.

[0112] S500, etching the side wall of the initial hole to make the side wall of the initial hole present a stepped or concave-convex structure, and forming the mounting hole H.

[0113] For example, a pulse femtosecond laser is used to emit laser light, the frequency of the laser light is 500 KHZ-800 KHZ, the corresponding cutting speed is 300 mm / s-1500 mm / s, and the initial hole is formed by cutting 30-100 times.

[0114] For example, first, the focal point of a laser beam is converged on the circular polarizer 5 to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5 is recessed by 50-150 μm in the direction away from the axis of the mounting hole H, compared with the side wall corresponding to the part of the mounting hole H penetrating through the display panel 1; then, the focal point of the laser beam is converged on the adhesive layer 6 to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the adhesive layer 6 is substantially flush with the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5; finally, the focal point of the laser beam is converged on the first protective layer 9 to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the first protective layer 9 is recessed by 100-300 μm in the direction away from the axis of the mounting hole H, compared with the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5, so that the side wall of the initial hole presents a stepped structure, and the mounting hole H is formed (see Figure 5C ).

[0115] For example, first, the focal point of a laser beam is converged on the circular polarizer 5 to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5 is recessed by 50-200 μm in the direction away from the axis of the mounting hole H; then, the focal point of the laser beam is converged on the first protective layer 9 to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the first protective layer 9 is recessed by 50-200 μm in the direction away from the axis of the mounting hole H, so that the side wall of the initial hole presents a concave-convex structure, and the mounting hole H is formed (see Figure 6C ).

[0116] For example, at least two focal points of at least two laser beams are converged on at least two of the display panel, the circular polarizer, the adhesive layer and the first protective layer, respectively, and at least two laser beams are used to synchronously etch the display panel, the circular polarizer, the adhesive layer and the first protective layer, so that the side wall of the initial hole presents a stepped or concave-convex structure.

[0117] For example, three focal points of three lasers are converged on the circular polarizer 5, the adhesive layer 6 and the first protective layer 9 respectively to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5 and the adhesive layer 6 is inwardly recessed by 50-150 μm in the direction away from the axis of the mounting hole H, compared with the side wall corresponding to the part of the mounting hole H penetrating through the display panel; and the side wall corresponding to the part of the mounting hole H penetrating through the first protective layer 9 is inwardly recessed by 100-300 μm in the direction away from the axis of the mounting hole H, compared with the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5 and the adhesive layer 6, so that the side wall of the initial hole is in a stepped shape, and the mounting hole H is formed (see Figure 4C ).

[0118] For another example, two focal points of two lasers are converged on the circular polarizer 5 and the first protective layer 9 respectively to perform etching, so that the side wall corresponding to the part of the mounting hole H penetrating through the circular polarizer 5 is inwardly recessed by 50-200 μm in the direction away from the axis of the mounting hole H; and the side wall corresponding to the part of the mounting hole H penetrating through the first protective layer 9 is inwardly recessed by 50-200 μm in the direction away from the axis of the mounting hole H, so that the side wall of the initial hole is in a concave-convex structure, and the mounting hole H is formed (see Figure 6C ).

[0119] S600, a second light-shielding pattern 8 is made, which covers at least the side wall of the mounting hole H.

[0120] Exemplarily, black ink is sprayed on the side wall of the mounting hole H or black hot-melt adhesive is applied on the side wall of the mounting hole H to form the second light-shielding pattern 8.

[0121] In some embodiments, before S400, the manufacturing method of the display device 100 further includes S310.

[0122] S310, a second protective layer 10 is arranged on the side of the display panel 1 away from the adhesive layer 6.

[0123] On this basis, the initial hole formed by the opening in the functional device arrangement area A2 of the display panel 1 in S400 also penetrates through the second protective layer 10.

[0124] In some embodiments, referring to Figure 9 , before S600, the manufacturing method of the display device 100 further includes S510, and after S600, the manufacturing method of the display device 100 further includes S610.

[0125] S510, a process film is arranged on the side of the second protective layer 10 away from the display panel 1, so as to facilitate the transfer of the semi-finished product in the subsequent manufacturing process of the second light-shielding pattern 8, and facilitate the manufacturing of the second light-shielding pattern 8.

[0126] S610, removing the process membrane.

[0127] In some embodiments, see Figure 9 After S600 , the manufacturing method of the display device 100 further includes S620 .

[0128] S620 , removing the first protective layer 10 , and placing a cover plate 3 on a side of the adhesive layer 6 away from the display panel 1 .

[0129] Some embodiments of the present disclosure further provide a display device 100, such as Figure 4A 、 Figure 5A and Figure 6A As shown, it includes a display module 1000 and a cover plate 3, the display module 1000 has a functional device setting area A2, and a main display area A1 surrounding the functional device setting area A2; a mounting hole H is provided in the functional device setting area A2, and the functional device setting area A2 includes a reserved area A21 surrounding the mounting hole H; the side wall of the mounting hole H is stepped or concave-convex structure.

[0130] Among them, the display module 1000 includes a display panel 1, a first shading pattern 7, an adhesive layer 6 and a second shading pattern 8. The first shading pattern 7 is arranged on the light-emitting side of the display panel 1, and the orthographic projection of the first shading pattern 7 on the display panel 1 roughly coincides with the reserved area A21 of the display panel 1; the adhesive layer 6 is arranged on the side of the first shading pattern 7 away from the display panel 1, and the mounting hole H passes through the display panel 1, the first shading pattern 7 and the adhesive layer 6; the second shading pattern 8 at least covers the side wall of the mounting hole H; the cover plate 3 is arranged on the side of the adhesive layer 6 away from the display panel 1.

[0131] In some embodiments, see Figure 4C 、 Figure 5C and Figure 6C The mounting hole H includes a plurality of sub-holes, and the plurality of sub-holes are arranged along the thickness direction of the display panel 1, and the side walls of at least two adjacent sub-holes are not flush.

[0132] It should be noted that the surface of the side wall of each sub-hole is flat, and the side wall of each sub-hole can be substantially parallel to the thickness direction of the display panel 1 (see Figure 4B 、 Figure 5B and Figure 6B ), or the sidewall of each sub-hole may be at a certain angle to the thickness direction of the display panel 1 (see Figure 4C 、 Figure 5C and Figure 6C Wherein, when the sidewall of each sub-hole forms a certain angle with the thickness direction of the display panel 1, the difference between the maximum aperture and the minimum aperture of each sub-hole is 30 μm to 100 μm.

[0133] For example, Figure 4C 、Figure 5C and Figure 6C As shown, the mounting hole H includes a first sub-hole H1, a second sub-hole H2 and a third sub-hole H3, which are arranged in sequence along the thickness direction of the display panel 1 and from the display panel 1 to the adhesive layer 6.

[0134] Correspondingly, such as Figure 4C 、 Figure 5C and Figure 6C As shown, the second light shielding pattern 8 includes a first sub-pattern 81 covering the sidewall of the first sub-hole H1 , a second sub-pattern 82 covering the sidewall of the second sub-hole H2 , and a third sub-pattern 83 covering the sidewall of the third sub-hole H3 .

[0135] In some embodiments, as Figure 4A and Figure 4C As shown, the diameter of the first sub-hole H1 at one end near the second sub-hole H2 is smaller than the diameter of the second sub-hole H2 at one end near the first sub-hole H1, and the sidewall of the first sub-hole H1 forms a step structure with the sidewall of the second sub-hole H2; the diameter of the second sub-hole H2 at one end near the inner third sub-hole H3 is smaller than the diameter of the third sub-hole H3 at one end near the second sub-hole H2, and the sidewall of the second sub-hole H2 forms a step structure with the sidewall of the third sub-hole H3. For example, the diameter of the first sub-hole H1 at one end near the second sub-hole H2 is 50μm to 150μm smaller than the diameter of the second sub-hole H2 at one end near the first sub-hole H1, and the diameter of the second sub-hole H2 at one end near the inner third sub-hole H3 is 50μm to 150μm smaller than the diameter of the third sub-hole H3 at one end near the second sub-hole H2.

[0136] Correspondingly, such as Figure 4A and Figure 4C As shown, the boundary of the side wall of the first sub-pattern 81 close to the first sub-hole H1 is close to the axis of the mounting hole H relative to the boundary of the side wall of the second sub-pattern 82 close to the second sub-hole H2; the boundary of the side wall of the second sub-pattern 82 close to the second sub-hole H2 is close to the axis of the mounting hole H relative to the boundary of the side wall of the third sub-pattern 83 close to the third sub-hole H3.

[0137] In other embodiments, Figure 5A and Figure 5C As shown, the diameter of the first sub-hole H1 near the second sub-hole H2 is smaller than the diameter of the second sub-hole H2 near the first sub-hole H1, and the sidewalls of the first sub-hole H1 and the second sub-hole H2 form a stepped structure. The diameter of the second sub-hole H2 near the third sub-hole H3 is equal to the diameter of the third sub-hole H3 near the second sub-hole H2, and the sidewalls of the second sub-hole H2 and the third sub-hole H3 are flush. For example, the diameter of the first sub-hole H1 near the second sub-hole H2 is 50μm to 150μm smaller than the diameter of the second sub-hole H2 near the first sub-hole H1.

[0138] Correspondingly, such as Figure 5A and Figure 5C As shown, the boundary of the first sub-pattern 81 near the side wall of the first sub-hole H1 is close to the axis of the mounting hole H relative to the boundary of the second sub-pattern 82 near the side wall of the second sub-hole H2; the boundary of the second sub-pattern 82 near the side wall of the second sub-hole H2 is flush with the boundary of the third sub-pattern 83 near the side wall of the third sub-hole H3.

[0139] In some other embodiments, Figure 6A and Figure 6C As shown, the diameter of the first sub-hole H1 at the end closest to the second sub-hole H2 is smaller than the diameter of the second sub-hole H2 at the end closest to the first sub-hole H1, and the sidewalls of the first sub-hole H1 and the second sub-hole H2 form a stepped structure. The diameter of the second sub-hole H2 at the end closest to the third sub-hole H3 is larger than the diameter of the third sub-hole H3 at the end closest to the second sub-hole H2, and the sidewalls of the third sub-hole H3 are raised relative to the sidewalls of the second sub-hole H2. For example, the diameter of the first sub-hole H1 at the end closest to the second sub-hole H2 is 50μm to 200μm smaller than the diameter of the second sub-hole H2 at the end closest to the first sub-hole H1, and the diameter of the second sub-hole H2 at the end closest to the third sub-hole H3 is 50μm to 200μm larger than the diameter of the third sub-hole H3 at the end closest to the second sub-hole H2.

[0140] Correspondingly, as shown in Figure Figure 6A and Figure 6C As shown, the boundary of the side wall of the first sub-pattern 81 close to the first sub-hole H1 is close to the axis of the mounting hole H relative to the boundary of the side wall of the second sub-pattern 82 close to the second sub-hole H2; the boundary of the side wall of the second sub-pattern 82 close to the second sub-hole H2 is away from the axis of the mounting hole H relative to the boundary of the side wall of the third sub-pattern 83 close to the third sub-hole H3.

[0141] In some embodiments, the display module 1000 of the display device 100 further includes a circular polarizer 5 , which is disposed between the display panel 1 and the adhesive layer 6 , and the first shading pattern 7 is located on the side of the circular polarizer 5 close to the display panel 1 , and the mounting hole H passes through the circular polarizer 5 .

[0142] The display panel 1 is provided with multiple layers of inorganic films, which are more fragile than organic films. During the process of drilling holes in the display panel 1, cracks are easily generated at the edges of the holes corresponding to the inorganic films. Therefore, in some embodiments, as shown in the figure, the first sub-hole H1 penetrates the display panel 1 and the first light-shielding pattern 7, the second sub-hole H2 penetrates the circular polarizer 5, and the third sub-hole H3 penetrates the adhesive layer 6.

[0143] In this case, the display panel 1 only needs to be opened once, and the side wall of the sub-hole corresponding to the display panel 1 does not need to be cut, thereby reducing the risk of cracks on the edge of the sub-hole corresponding to the display panel 1, and the width of the reserved area A21 of the display panel 1 can be designed to be narrower.

[0144] It should be noted that in the embodiments of the present disclosure, the film layers through which the first sub-hole H1, the second sub-hole H2 and the third sub-hole H3 pass are not limited thereto.

[0145] In some embodiments, as shown in Figure 4A 、 Figure 5A and Figure 6A , the second light shielding pattern 8 includes a fourth sub-pattern 84 (see Figure 4C 、 Figure 5C and Figure 6C ), the fourth sub-pattern 84 covers the part of the bonding layer 6 away from the surface of the display panel 1 around the mounting hole H; and the side of the cover plate 3 close to the display panel 1 is in contact with the surface of the fourth sub-pattern 84.

[0146] Here, the orthographic projection of the fourth sub-pattern 84 on the display panel 1 is located within the reserved area A21 of the display panel 1; or, the orthographic projection of the fourth sub-pattern 84 on the display panel 1 is substantially coincident with the reserved area A21 of the display panel.

[0147] In this case, since the fourth sub-pattern 84 also has a large area of adhesion with the bonding layer 6, during the peeling of the first protective layer 9 above the bonding layer 6 in the manufacturing process of the display device 100, the risk of the first protective layer 9 being pulled off at the contact position with the fourth sub-pattern 84 can be reduced, thereby facilitating the tearing.

[0148] In addition, the fourth sub-pattern 84 can also shield the cracks on the edge of the sub-hole corresponding to the reserved area A21 on the side of the display panel 1 away from the display panel 1, and further reduce the risk of light leakage.

[0149] In the process of preparing the fourth sub-pattern 84, the fourth sub-pattern 84 is integrally provided with the part of the second light shielding pattern 8 covering the side wall of the mounting hole H, so that the process can be simplified and the manufacturing cost can be reduced.

[0150] In some embodiments, as shown in Figure 4A 、 Figure 5A and Figure 6A , the display module 1000 of the display device 100 further includes a second protective layer 10, the second protective layer 10 is arranged on the side of the display panel 1 away from the bonding layer 6, and the mounting hole H penetrates the second protective layer 10.

[0151] On this basis, refer to Figure 4C 、 Figure 5C and Figure 6CThe mounting hole H further comprises a fifth sub-hole H5 penetrating the second protective layer 10, the aperture of the fifth sub-hole H5 near one end is equal to the aperture of the first sub-hole H1 near the other end, and the side wall of the fifth sub-hole H5 is flush with the side wall of the first sub-hole H1.

[0152] Correspondingly, referring to Figure 4C , Figure 5C and Figure 6C , the second light-shielding pattern further comprises a fifth sub-pattern covering the side wall of the fifth sub-hole.

[0153] In some embodiments, as shown in Figure 4A , Figure 5A and Figure 6A , the surface of the second light-shielding pattern 8 near the axis of the mounting hole H is flat, so as to reduce the adverse interference of the external light received by the opening of the second light-shielding pattern 8 corresponding to the display side of the display panel 1, and ensure that more external light can enter the functional device through the mounting hole H.

[0154] In addition, the surface of the second light-shielding pattern 8 near the axis of the mounting hole H is substantially parallel to the axis of the mounting hole H. That is, the inner diameter of the second light-shielding pattern 8 is approximately equal, and most of the external light received by the opening of the second light-shielding pattern 8 corresponding to the display side of the display panel 1 can enter the functional device through the mounting hole H, so that sufficient external light can enter the functional device through the mounting hole H in the case that the functional device setting area A2 occupies a smaller display area.

[0155] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A display module, characterized by The display module comprises: a display panel; a first light-shielding pattern arranged on the light-emitting side of the display panel, the orthographic projection of the first light-shielding pattern on the display panel substantially coincides with the reserved area of the display panel; an adhesive layer arranged on the side of the first light-shielding pattern away from the display panel, the mounting hole penetrates the display panel, the first light-shielding pattern and the adhesive layer; a second light-shielding pattern covering at least the sidewall of the mounting hole; a circular polarizer arranged between the display panel and the adhesive layer, the first light-shielding pattern is located on the side of the circular polarizer close to the display panel, and the mounting hole penetrates the circular polarizer; the first sub-hole penetrates the display panel and the first light-shielding pattern, the second sub-hole penetrates the circular polarizer, and the third sub-hole penetrates the adhesive layer. The aperture of the second sub-hole close to the third sub-hole is smaller than the aperture of the third sub-hole close to the second sub-hole, and the sidewall of the second sub-hole forms a step structure with the sidewall of the third sub-hole; or, the aperture of the second sub-hole close to the third sub-hole is equal to the aperture of the third sub-hole close to the second sub-hole, and the sidewall of the second sub-hole is flush with the sidewall of the third sub-hole; or, the aperture of the second sub-hole close to the third sub-hole is larger than the aperture of the third sub-hole close to the second sub-hole, and the sidewall of the third sub-hole is protruded relative to the sidewall of the second sub-hole.

2. The display module of claim 1, wherein, The second light-shielding pattern comprises: a first sub-pattern covering the sidewall of the first sub-hole, a second sub-pattern covering the sidewall of the second sub-hole, and a third sub-pattern covering the sidewall of the third sub-hole; 3. The display module of claim 2, wherein, The boundary of the first sub-pattern close to the sidewall of the first sub-hole is closer to the axis of the mounting hole than the boundary of the second sub-pattern close to the sidewall of the second sub-hole; The boundary of the second sub-pattern close to the sidewall of the second sub-hole is closer to the axis of the mounting hole than the boundary of the third sub-pattern close to the sidewall of the third sub-hole; or, the boundary of the second sub-pattern close to the sidewall of the second sub-hole is flush with the boundary of the third sub-pattern close to the sidewall of the third sub-hole; or, the boundary of the second sub-pattern close to the sidewall of the second sub-hole is away from the axis of the mounting hole relative to the boundary of the third sub-pattern close to the sidewall of the third sub-hole. Further comprising:

4. The display module of claim 1, wherein, ​ A first protective layer is arranged on a side of the adhesive layer away from the display panel. The mounting hole further comprises a fourth sub-hole penetrating through the first protective layer, an aperture of one end of the fourth sub-hole close to the third sub-hole is larger than an aperture of one end of the third sub-hole close to the fourth sub-hole, and a side wall of the fourth sub-hole and a side wall of the third sub-hole form a stepped structure.

5. The display module of claim 4, wherein, The second light-shielding pattern further comprises a fourth sub-pattern covering a part of a surface of the adhesive layer away from the display panel beyond the first protective layer.

6. The display module of claim 5, wherein, The fourth sub-pattern is integrally arranged with a part of the second light-shielding pattern covering the side wall of the mounting hole.

7. The display module of claim 6, wherein, A normal projection of the fourth sub-pattern on the display panel is located within the reserved area of the display panel, or the reserved area of the display panel substantially coincides.

8. The display module of claim 1, wherein, Further comprising: A second protective layer is arranged on a side of the display panel away from the adhesive layer. The mounting hole further comprises a fifth sub-hole penetrating through the second protective layer, an aperture of one end of the fifth sub-hole close to the first sub-hole is equal to an aperture of one end of the first sub-hole close to the fifth sub-hole, and a side wall of the fifth sub-hole is flush with a side wall of the first sub-hole.

9. The display module of claim 8, wherein, The second light-shielding pattern further comprises a fifth sub-pattern covering the side wall of the fifth sub-hole. 10.The display module of any one of claims 1-9, wherein, A surface of the second light-shielding pattern close to an axis of the mounting hole is flat.

11. The display module of claim 10, wherein, The surface of the second light-shielding pattern close to the axis of the mounting hole is substantially parallel to the axis of the mounting hole.

12. The display module of claim 1, wherein, The first light-shielding pattern is connected with the second light-shielding pattern.

13. The display module of claim 1, wherein, Materials of the first light-shielding pattern and the second light-shielding pattern are black ink or black hot melt adhesive.

14. A method for manufacturing a display device, comprising: Comprising: A display panel is provided, the display panel comprising a functional device arrangement area and a main display area surrounding the functional device arrangement area; A first light-shielding pattern is made on a light-outgoing side of the display panel, a normal projection of the first light-shielding pattern on the display panel substantially coincides with the functional device arrangement area of the display panel; A circular polarizer, an adhesive layer and a first protective layer are sequentially arranged on the light-outgoing side of the display panel on which the first light-shielding pattern is formed; A hole is opened in the functional device arrangement area of the display panel to form an initial hole, the initial hole penetrating through the display panel, the first light-shielding pattern, the circular polarizer, the adhesive layer and the first protective layer; A side wall of the initial hole is etched so that the side wall of the initial hole is in a stepped or concave-convex structure to form a mounting hole; the mounting hole comprises a first sub-hole, a second sub-hole and a third sub-hole, the first sub-hole, the second sub-hole and the third sub-hole are sequentially arranged along a thickness direction of the display panel and a direction from the display panel to the adhesive layer; an aperture of one end of the first sub-hole close to the second sub-hole is smaller than an aperture of one end of the second sub-hole close to the first sub-hole, and a side wall of the first sub-hole and a side wall of the second sub-hole form a stepped structure; the mounting hole penetrates through the circular polarizer; the first sub-hole penetrates through the display panel and the first light-shielding pattern, the second sub-hole penetrates through the circular polarizer, and the third sub-hole penetrates through the adhesive layer; A second light-shielding pattern is made to cover at least the sidewall of the mounting hole.

15. The method of manufacturing according to claim 14, wherein, The sidewall of the initial hole is etched to form a mounting hole, including: The display panel, the circular polarizer, the adhesive layer and the first protective layer are etched by a laser beam multiple times, so that the sidewall of the initial hole is in a stepped or concave-convex structure; or, At least two focal points of at least two laser beams are converged on at least two of the display panel, the circular polarizer, the adhesive layer and the first protective layer respectively, and the display panel, the circular polarizer, the adhesive layer and the first protective layer are etched synchronously by the at least two laser beams, so that the sidewall of the initial hole is in a stepped or concave-convex structure.

16. The method of manufacturing of claim 14, wherein, Before the display panel is opened in the functional device setting area, a second protective layer is further arranged on the side of the display panel away from the adhesive layer. The initial hole formed by opening the display panel in the functional device setting area further penetrates the second protective layer.

17. The method of manufacturing according to claim 16, wherein, Before the second light-shielding pattern is made, the method further includes: A process film is arranged on the side of the second protective layer away from the display panel. After the second light-shielding pattern is made on the sidewall of the mounting hole, the method further includes: The process film is removed.

18. The production method according to any one of claims 14 to 17, characterized by, After the second light-shielding pattern is made, the method further includes removing the first protective layer and arranging a cover plate on the side of the adhesive layer away from the display panel.

19. A display device comprising: The display module includes: The display module has a functional device setting area and a main display area surrounding the functional device setting area; the functional device setting area is provided with a mounting hole, and the functional device setting area includes a reserved area surrounding the mounting hole; the sidewall of the mounting hole is in a stepped or concave-convex structure; the mounting hole includes a first sub-hole, a second sub-hole and a third sub-hole, which are arranged in sequence along the thickness direction of the display panel and point to the adhesive layer; the aperture of the first sub-hole close to one end of the second sub-hole is smaller than the aperture of the second sub-hole close to one end of the first sub-hole, and the sidewall of the first sub-hole and the sidewall of the second sub-hole form a stepped structure; The display module includes: A display panel; A first light-shielding pattern is arranged on the light-emitting side of the display panel, and the orthographic projection of the first light-shielding pattern on the display panel substantially coincides with the reserved area of the display panel; An adhesive layer is arranged on the side of the first light-shielding pattern away from the display panel, and the mounting hole penetrates the display panel, the first light-shielding pattern and the adhesive layer; A second light-shielding pattern covers at least the sidewall of the mounting hole; A circular polarizer is arranged between the display panel and the adhesive layer, and the first light-shielding pattern is located on the side of the circular polarizer close to the display panel; the mounting hole penetrates the circular polarizer; the first sub-hole penetrates the display panel and the first light-shielding pattern, the second sub-hole penetrates the circular polarizer, and the third sub-hole penetrates the adhesive layer; A cover plate is arranged on the side of the adhesive layer away from the display panel.

20. The display device of claim 19, wherein, The second light-shielding pattern includes a fourth sub-pattern covering a portion of a surface of the adhesive layer away from the display panel and located around the mounting hole; One side of the cover plate close to the display panel is in contact with a surface of the fourth sub-pattern.

21. A display device according to claim 19 or 20, characterised in that, The display module further includes: A second protective layer is arranged on a side of the display panel away from the adhesive layer, and the mounting hole penetrates through the second protective layer.

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