Display module, combination method thereof and display device

Abstract

The invention provides a display module, a combination method of the display module and a display device. The problem that black spots exist in hole areas of display products in the prior art is solved. The display module comprises a display screen which comprises a first through hole; the supporting layer is located on the non-display side of the display screen, and the supporting layer covers a first side opening of the first through hole; the cover plate is located on the display side of the display screen, the cover plate covers a second side opening of the first through hole, and the second side opening and the first side opening are oppositely arranged.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and an assembly method thereof, and a display device. Background Art

[0002] As the demand for large screen-to-body ratio of current display devices is growing, many manufacturers use screen punching technology to accommodate some optical devices. However, such display devices are prone to black spots in the hole area, resulting in low yield of display devices. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a display module and an assembly method thereof, and a display device, which solve the problem of black spots in the hole area of ​​display products in the related art.

[0004] The first aspect of the present application provides a display module, comprising: a display screen, comprising a first through hole; a support layer, located on the non-display side of the display screen, the support layer covers the first side opening of the first through hole; and a cover plate, located on the display side of the display screen, the cover plate covers the second side opening of the first through hole, and the second side opening is arranged relative to the first side opening. The advantage is that by retaining the hole area support layer, and cooperating with the hole area cover plate, that is, the support layer and the cover plate respectively close the openings on both sides of the hole, thereby forming a closed hole area environment, isolating water vapor, thereby avoiding the problem of black spots in the display device and improving the product yield.

[0005] In combination with the first aspect, in some possible implementations, the display module further includes a sealing portion, which is located in the first through hole; the sealing portion covers the side wall of the display screen, or the sealing portion fills the first through hole; preferably, the sealing portion is a transparent material; preferably, the material of the sealing portion includes a transparent optical adhesive. The advantage is that the packaging effect is improved. At the same time, the sealing portion can also play a supporting role between the cover plate and the supporting layer. The transparent sealing portion can prevent light blocking.

[0006] In combination with the first aspect, in some possible implementations, the display module further includes a support member located on the side of the support layer away from the display screen, the support member includes a second through hole, and the orthographic projection of the first through hole on the support layer overlaps the orthographic projection of the second through hole on the support layer; preferably, the orthographic projection of the first through hole on the support layer is located within the orthographic projection range of the second through hole on the support layer; preferably, the support member includes copper foil. The effect is to improve the heat dissipation effect and avoid damage to the display screen.

[0007] In combination with the first aspect, in some possible implementations, the display module also includes an optical device, which is located on the side of the supporting layer facing away from the display screen, and the orthographic projection of the optical device on the supporting layer at least partially overlaps with the orthographic projection of the second through hole on the supporting layer; preferably, at least part of the optical device is located in the second through hole; preferably, the optical device includes any one of a camera, a fingerprint recognition sensor, a light sensor, a distance sensor, and an ambient light sensor.

[0008] In combination with the first aspect, in some possible implementations, the display screen includes a stacked display panel and a filter layer, the filter layer is located between the display panel and the cover plate, and the first through hole penetrates the display panel and the filter layer.

[0009] In combination with the first aspect, in some possible implementations, the display screen includes a display panel, the display panel has a display area and a packaging area, the packaging area is located between the display area and the first through hole; the display panel includes a substrate and at least one barrier dam, the barrier dam is located on one side of the substrate and in the packaging area, and the barrier dam surrounds the first through hole; preferably, the number of barrier dams is less than or equal to 6; preferably, the display panel also includes a dam and an organic packaging layer, the dam is located on one side of the substrate and in the packaging area, the organic packaging layer is located on one side of the substrate and extends from the display area to the packaging area, and the organic packaging layer ends at the side of the dam close to the display area; preferably, the number of barrier dams on the side of the dam close to the first through hole is less than or equal to the number of barrier dams on the side of the dam close to the display area. The advantage is that by using the support layer and the cover plate to cooperate with each other, the openings on both sides of the first through hole are closed, so that a closed environment is formed inside the first through hole. In this case, the number of barrier dams used to block water and oxygen can be appropriately reduced, thereby narrowing the size of the packaging area.

[0010] The second aspect of the present application provides a method for assembling a display module, comprising: attaching a supporting layer to the non-display side of a display screen; punching a hole downward on the display side of the display screen to form a first through hole, the first through hole penetrates the display screen and ends at the interface between the supporting layer and the display screen, the supporting layer covers the first side opening of the first through hole; attaching a cover plate to the display side of the display screen, the cover plate covers the second side opening of the first through hole, and the second side opening and the first side opening are arranged opposite to each other.

[0011] In combination with the second aspect, in some possible implementations, after punching a hole on the display screen to form a first through hole, and before attaching a cover plate to the display side of the display screen, the combined method also includes: preparing a sealing portion in the first through hole, the sealing portion covering the side wall of the display screen, or the sealing portion filling the first through hole.

[0012] In combination with the second aspect, in some possible implementations, after the cover plate is attached to the display side of the display screen, the combination method also includes: attaching a support member on the side of the support layer facing away from the display screen, the support member includes a second through hole, and the orthographic projection of the second through hole on the support layer overlaps with the orthographic projection of the first through hole on the support layer.

[0013] A third aspect of the present application provides a display device, comprising the display module provided by any of the above embodiments.

[0014] According to the display module and its assembly method and display device provided by the embodiment of the present application, the display screen includes a first through hole, a support layer is provided on the non-display side of the display screen, the support layer covers the first side opening of the first through hole, and a cover plate is provided on the display side of the display screen, the cover plate covers the second side opening of the first through hole. In this case, by retaining the hole area support layer and cooperating with the hole area cover plate, that is, the support layer and the cover plate respectively close the openings on both sides of the hole, a closed hole area environment is formed to isolate water vapor, thereby avoiding the problem of black spots in the display device and improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the top structure of a display module provided in one embodiment of the present application.

[0016] Figure 2 The first embodiment of the present application provides Figure 1 A schematic diagram of the cross-sectional structure of the display module along line N1N2.

[0017] Figure 3 The second embodiment of the present application provides Figure 1 A schematic diagram of the cross-sectional structure of the display module along line N1N2.

[0018] Figure 4 The third embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown.

[0019] Figure 5 The fourth embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown.

[0020] Figure 6 The fifth embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown.

[0021] Figure 7 An embodiment of the present application provides Figure 1 The diagram is a partial cross-sectional structural diagram of the display screen after the display module is cut along line N1N3.

[0022] Figure 8This is a flow chart of a display module assembly method provided in the first embodiment of the present application.

[0023] Figure 9a-9e A schematic structural diagram of an intermediate product obtained during the assembly process of a display module provided in an embodiment of the present application.

[0024] Fig.10 This is a flow chart of a display module assembly method provided in the second embodiment of the present application.

[0025] Fig.11 This is a flow chart of a display module assembly method provided in the third embodiment of the present application.

[0026] Fig.12 A schematic diagram of the structure of a display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is understood that when a structure is referred to as being "on or under" another structure, the structure may be directly on or under the other structure, or there may be intermediate structures. The same reference numerals always indicate the same structure. The structures mentioned herein include any of a film layer, an element, a device, a component, and an assembly.

[0029] When a structure is referred to as being “connected” to another structure, the structure may be directly connected to the other structure or indirectly connected to the other structure with one or more intervening structures interposed therebetween.

[0030] Black spots in the hole area are one of the most common defects in organic light-emitting display devices. After the hole is dug in the display area, the cut edge is directly connected to the outside world. Water vapor can easily invade the screen from the cut edge of the hole area, resulting in black spot defects.

[0031] In view of this, the present application provides a display module and its assembly method, and a display device, which retains the hole area support layer and cooperates with the hole area cover plate, that is, the support layer and the cover plate respectively close the openings on both sides of the hole, thereby forming a closed hole area environment and isolating water vapor, thereby avoiding the black spot problem of the display device and improving the product yield.

[0032] Figure 1 A schematic diagram of the top structure of a display module provided in one embodiment of the present application. Figure 2The first embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line. Figure 1 and Figure 2 As shown, the display module includes a display screen 11, a support layer 12 and a cover plate 13. The display screen 11 includes a first through hole h1. The first through hole h1 is located in the hole area H. The support layer 12 is located on the non-display side of the display screen 11, and the support layer 12 covers the first side opening of the first through hole h1. The cover plate 13 is located on the display side of the display screen 11, and the cover plate 13 covers the second side opening of the first through hole h1, and the second side opening is arranged opposite to the first side opening.

[0033] The display screen 11 is used to realize the display function. The display screen 11 includes a display panel 110. A light-emitting device is provided in the display panel 110, and the light-emitting device may be an organic light-emitting diode (OLED), a micro light-emitting diode (Micro LED), a quantum dot light-emitting diode (QLED), etc. The display panel may also include a pixel circuit electrically connected to the light-emitting device. A pixel circuit may be electrically connected to one or more light-emitting devices. The pixel circuit is used to drive the light-emitting device to emit light according to a predetermined brightness for display. Exemplarily, the pixel circuit is a 7T1C pixel circuit, an 8T1C pixel circuit, etc.

[0034] In one embodiment, the display screen 11 may further include a filter layer 120, and the filter layer 120 is located between the display panel 110 and the cover plate 13. Exemplarily, the filter layer 120 includes a polarizer or a color filter layer.

[0035] The support layer 12 includes a support film (Barrier Projection Film, BPF), which is used to provide support and protection for the display screen 11. Exemplarily, the material of the support film can be polyimide, polyethylene terephthalate, etc.

[0036] The cover plate 13 may be made of a material with high light transmittance. For example, the light transmittance of the cover plate 13 is greater than 90%. For example, the material of the cover plate 13 may be polyethylene terephthalate (PET), ultra-thin glass (UTG), polyimide (PI), polyethylene naphthalate (PEN), polycarbonate (PC), polymethyl methacrylate (PMMA), triacetyl cellulose (TAC), etc.

[0037] The shape of the first through hole h1 is, for example, any one of a circle, an ellipse, a rectangle, a rounded rectangle, and a polygon. The present application does not limit the shape of the first through hole h1, and those skilled in the art can reasonably select it according to actual needs.

[0038] The first through hole h1 forms a hole area for transmitting ambient light from the display side to the non-display side.

[0039] According to the display module provided in this embodiment, by retaining the support layer 12 at the opening of the first through hole h1 on the non-display side, the support layer 12 is used to close the opening of the first through hole h1 on this side, and the cover plate 13 cooperates with each other to close the opening of the first through hole h1 on the display side, so that a closed environment is formed inside the first through hole h1, and water and oxygen are blocked from invading the inside of the display screen 11 through the first through hole h1, thereby solving the problem of black spots in the hole area and improving the yield of the display module.

[0040] Figure 3 The second embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line. Figure 3 The display module and Figure 2 The difference between the display module shown is that, in this embodiment, the display module further includes a sealing portion 14. The sealing portion 14 is located in the first through hole h1, and the sealing portion 14 covers the side wall of the display screen 11.

[0041] The sealing part 14 can block water vapor and oxygen. In one embodiment, the sealing part 14 is made of a transparent material to avoid blocking the light of the light emitting device and affecting the display effect.

[0042] In one embodiment, the material of the sealing portion 14 includes transparent optical glue, for example, any one of OCA optical glue, OCR optical glue, OCF optical glue, organic silicone, and acrylic resin.

[0043] According to the display module provided in this embodiment, by covering the side wall of the display screen 11 in the first through hole h1 with the sealing portion 14 , the water and oxygen barrier effect is further improved, thereby improving the yield of the display module.

[0044] Figure 4 The third embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown in FIG. Figure 4 The display module and Figure 3 The difference between the display module shown is that, in this embodiment, the sealing portion 14 fills the first through hole h1 .

[0045] In this case, on the one hand, the sealing portion 14 can provide protection for the side wall of the display screen 11 in the first through hole h1 to block the invasion of water and oxygen; on the other hand, the sealing portion 14 can form a support between the supporting layer 12 and the cover plate 13 to enhance the structural stability of the display module; that is, in the display module provided in this embodiment, the sealing portion 14 has both sealing and supporting functions.

[0046] Figure 5 The fourth embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown in FIG. Figure 5 The display module shown is based on the display module provided by any of the above embodiments. Figure 4 Taking the display module shown as an example, it also includes a support member 16. The support member 16 is located on the side of the support layer 12 away from the display screen 11. The support member 16 includes a second through hole h2, and the orthographic projection of the first through hole h1 on the support layer 12 overlaps with the orthographic projection of the second through hole h2 on the support layer 12. The first through hole h1 and the second through hole h2 cooperate to form a light-transmitting hole.

[0047] In one embodiment, the orthographic projection of the first through hole h1 on the support layer 12 is within the orthographic projection range of the second through hole h2 on the support layer 12. Due to the processing characteristics of the support member 16, it cannot be completed at the same time as the opening of the display screen 11, and the opening of the support member 16 is completed when the material is received. Therefore, in order to ensure that the support member 16 does not block the opening area of ​​the display screen 11 after the support member 16 and the display screen 11 are bonded, a certain design gap needs to be reserved between the opening edge of the support member 16 and the opening edge of the display screen 11, so that the orthographic projection of the first through hole h1 on the support layer 12 is within the orthographic projection range of the second through hole h2 on the support layer 12. In this case, by retaining the support layer 12 at the opening of the first through hole h1, the support layer 12 can also be used to provide support for the edge area of ​​the opening of the display screen 11, so as to avoid the problem of low mechanical strength of the opening edge of the display screen 11 and easy panel cracking when the display module is impacted or squeezed.

[0048] In one embodiment, the support member 16 includes copper foil, stainless steel, titanium alloy, carbon fiber plate, etc.

[0049] According to the display module provided in this embodiment, by providing the support member 16 , the mechanical strength of the display module can be improved, and the ability of the display module to resist external impact can be improved.

[0050] Figure 6 The fifth embodiment of the present application provides Figure 1 The cross-sectional structure diagram of the display module along the N1N2 line is shown in FIG. Figure 6 The display module and Figure 5The difference between the display modules shown is that, in this embodiment, the display module further includes an optical device 17, which is located on the side of the support layer 12 away from the display screen 11, and the orthographic projection of the optical device 17 on the support layer 12 at least partially overlaps with the orthographic projection of the second through hole h2 on the support layer 12. In this way, the optical device 17 can collect information through the light-transmitting hole formed by the second through hole h2 and the first through hole h1.

[0051] In one embodiment, the optical device 17 includes any one of a camera, a fingerprint recognition sensor, a light sensor, a distance sensor, and an ambient light sensor.

[0052] In one embodiment, at least a portion of the optical device 17 is located in the second through hole h2.

[0053] Figure 7 An embodiment of the present application provides Figure 1 The schematic diagram of the partial cross-sectional structure of the display screen after the N1N3 line of the display module is cut. Figure 7 As shown, the display screen 11 includes a display panel, the display panel 110 has a display area AA and an encapsulation area FA, the encapsulation area FA is located between the display area AA and the first through hole h1, and the encapsulation area FA at least partially surrounds the first through hole h1. The first through hole h1 forms a hole area HA. ​​The display panel includes a substrate 111 and at least one barrier dam 112, the barrier dam 112 is located on one side of the substrate 111 and in the encapsulation area FA, and the barrier dam 112 surrounds the first through hole h1.

[0054] The display panel 110 further includes a light emitting device 113, which is located on one side of the substrate 111 and in the display area. The light emitting device 113 includes a plurality of light emitting functional layers 1131, at least one of which extends from the display area AA to the encapsulation area FA, and the light emitting functional layer extending to the encapsulation area FA is disconnected at the barrier dam 112.

[0055] An undercut structure is formed on the sidewall of the barrier dam 112 to isolate the light-emitting functional layer 1131. Exemplarily, the barrier dam 112 includes a first barrier portion and a second barrier portion stacked together, the second barrier portion is located on the side of the first barrier portion away from the substrate 111, and the orthographic projection of the first barrier portion on the substrate 111 is located within the orthographic projection range of the second barrier portion on the substrate 111. Exemplarily, the barrier dam 112 may also include a third barrier portion located on the side of the first barrier portion close to the substrate 111, and the orthographic projection of the first barrier portion on the substrate 111 is located within the orthographic projection range of the third barrier portion on the substrate 111. Exemplarily, the material of the first barrier portion is silver, and the materials of the second barrier portion and the third barrier portion are both indium tin oxide.

[0056] The material of the barrier dam 112 includes at least one of metal, metal oxide, and inorganic compound, which can block water and oxygen and effectively prevent water and oxygen from penetrating from the hole area HA. ​​By setting the light-emitting functional layer to be disconnected at the barrier dam 112, water and oxygen can be prevented from invading the display area AA along the light-emitting functional layer.

[0057] The light emitting device 113 further includes a first electrode 1132 and a second electrode 1133. The first electrode 1132 is located on the side of the light emitting functional layer 1131 close to the substrate 111, and the second electrode 1133 is located on the side of the light emitting functional layer 1131 away from the substrate 111. The first electrode 1132, the light emitting functional layer 1131 and the second electrode 1133 form a sandwich structure. Exemplarily, if the first electrode 1132 is an anode, the second electrode 1133 is a cathode; conversely, if the first electrode 1132 is a cathode, the second electrode 1133 is an anode.

[0058] At least one light-emitting functional layer includes a light-emitting layer, and may also include at least one of a hole injection layer (HIL), a hole transport layer (HTL), and an electron blocking layer (EBL) located between the anode and the light-emitting layer, and at least one of an electron injection layer (EIL), an electron transport layer (ETL), and a hole blocking layer (HBL) located between the cathode and the light-emitting layer. Exemplarily, one or more of the hole injection layer, hole transport layer, electron blocking layer, hole blocking layer, electron transport layer, and electron injection layer of all light-emitting devices may be a common layer connected together, and the light-emitting layers of adjacent light-emitting devices may have a small overlap, or may be isolated from each other.

[0059] The display panel 110 may further include a pixel definition layer 114 located on one side of the substrate 111 . The pixel definition layer 114 encloses a pixel opening, and the light emitting device 113 is located in the pixel opening.

[0060] In one embodiment, the display panel 110 further includes a dam 115 and an encapsulation structure 116. The dam 115 is located in the encapsulation area FA, and the encapsulation structure 116 includes an organic encapsulation layer 1161, which extends from the display area AA to the encapsulation area FA and terminates at the side of the dam 115 close to the display area AA. The encapsulation structure 116 may also include a first inorganic encapsulation layer 1162 and a second inorganic encapsulation layer 1163, the first inorganic encapsulation layer 1162 is located on the side of the organic encapsulation layer 1161 close to the substrate 111, and the second inorganic encapsulation layer 1163 is located on the side of the organic encapsulation layer 1161 away from the substrate 111. The first inorganic encapsulation layer 1161 and the second inorganic encapsulation layer 1163 both extend from the display area AA to the encapsulation area FA and contact in the encapsulation area FA.

[0061] In one embodiment, the display panel 110 includes a plurality of barrier dams 112, and the dam 115 is located between adjacent barrier dams 112. Exemplarily, the number of barrier dams 112 on the side of the dam 115 close to the hole area HA is less than or equal to the number of barrier dams 112 on the side of the dam 115 close to the display area AA. For example, the display screen includes two barrier dams 112, and the dam 115 is located between the two barrier dams 112.

[0062] In one embodiment, the number of barrier dams 112 is less than or equal to 6. Exemplarily, the number of barrier dams is 1, 2, 3, 4, 5 or 6.

[0063] In one embodiment, the display panel 110 further includes a pixel circuit 117 located between the substrate 111 and the light emitting device 113 , and the pixel circuit 117 and the light emitting device 113 are electrically connected.

[0064] According to the display module provided in this embodiment, the support layer 12 and the cover plate 13 cooperate with each other to close the openings on both sides of the first through hole h1, so that a closed environment is formed inside the first through hole h1. In this case, the number of the barrier dams 112 for blocking water and oxygen can be appropriately reduced, thereby narrowing the size of the encapsulation area FA.

[0065] The present application also provides a display module assembly method, which is applicable to assembling a display module provided by any of the above embodiments. Figure 8 This is a flow chart of a display module assembly method provided in the first embodiment of the present application. Figure 9a-9e For execution Figure 8 Schematic diagram of the structure of the intermediate product obtained during the combination method shown. Figure 8 As shown, the combined method 800 includes:

[0066] Step S810: attaching a support layer to the non-display side of the display screen.

[0067] See also Figure 9a For example, a glue layer may be attached to the non-display side of the display screen 11, and then the support layer 12 may be bonded to the glue layer. For another example, the support layer 12 itself includes a glue layer, so the support layer 12 may be directly bonded to the non-display side of the display screen 11.

[0068] In one embodiment, the display screen 11 and the supporting layer 12 have partially aligned edges. For example, the display screen 11 includes a pad end and a non-pad end that are disposed opposite to each other. At the pad end, the orthographic projection edge of the edge of the supporting layer 12 on the display screen 11 falls within the display screen 11; at the ends other than the pad end, the edge of the supporting layer 12 is aligned with the edge of the display screen 11.

[0069] Step S7820, drilling a hole downward on the display side of the display screen to form a first through hole, the first through hole passing through the display screen and ending at the interface between the support layer and the display screen, the support layer covering a first side opening of the first through hole;

[0070] See also Figure 9b , a region to be punched is reserved on the display screen 11. For example, a laser punching method can be used to punch a hole in the region to be punched to form a first through hole h1. The first through hole h1 penetrates the display screen 11 without damaging the support layer 12.

[0071] Step S830: attaching a cover plate to the display side of the display screen, wherein the cover plate covers the second side opening of the first through hole, and the second side opening is arranged opposite to the first side opening.

[0072] See also Figure 9d , a glue layer is attached to the display side of the display screen 11, and then the cover plate 13 is attached to the glue layer. Alternatively, a glue layer is attached to the cover plate 13, and then the display screen 11 is attached to the glue layer.

[0073] Fig.10 This is a flow chart of a display module assembly method provided in the second embodiment of the present application. Fig.10 The combined method 1000 and Figure 8 The difference between the combined method 800 shown is that the combined method 1000 further includes the following steps performed after step S820 and before step S830:

[0074] Step S1010: preparing a sealing portion in the first through hole, wherein the sealing portion covers the side wall of the display screen or fills the first through hole.

[0075] See also Fig.9c , using a dispensing process, optically transparent glue is applied on the side wall of the display screen 11 in the first through hole h1, and the sealing portion 14 is formed after curing. Alternatively, using a dispensing process, optically transparent glue is filled in the first through hole h1, and the sealing portion 14 is formed after curing.

[0076] In this case, according to step S830, refer to Figure 9d A cover plate 13 is attached to the display side of the display screen 11 , and the cover plate 13 covers the second side opening of the first through hole h1 .

[0077] Fig.11 This is a flow chart of a display module assembly method provided in the third embodiment of the present application. Fig.11 The combined method 1100 and Figure 8 The combined method 800 shown, Fig.10 The difference of the combined method 1000 shown is that Fig.10 Taking the combined method 1000 as an example, the combined method 1100 further includes the following steps performed after step S930:

[0078] Step S1100: attaching a support member to a side of the support layer facing away from the display screen, wherein the support member comprises a second through hole, and an orthographic projection of the second through hole on the support layer overlaps with an orthographic projection of the first through hole on the support layer.

[0079] See also Fig.9e , a support member 15 is attached to the side of the support layer 12 away from the display screen 11. The support member 15 has a second through hole h2, and when attaching, it is necessary to ensure that the second through hole h2 is aligned with the first through hole h1. For example, the center line of the first through hole h1 and the center line of the second through hole h2 are collinear.

[0080] The present application also provides a display device. Fig.12 This is a schematic diagram of the structure of a display device provided in one embodiment of the present application. Fig.12 As shown, the display device includes the display module 10 provided by any of the above embodiments.

[0081] A display device is a product with an image display function. For example, a display device can be used to display static images, such as pictures or photos. A display device can also be used to display dynamic images, such as videos.

[0082] The display device can be a laptop computer, a mobile phone, a handheld or portable computer, a camera, a camcorder, a vehicle-mounted intelligent central control screen, a calculator, a smart watch, a GPS navigator, an electronic photo, an electronic billboard or sign, a projector, etc.

[0083] In addition, the display device may also have functions such as taking photos, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device also includes at least one functional module for realizing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, and the like.

[0084] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0085] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A display module, characterized in that: include: A display screen, comprising a first through hole; A supporting layer, located on a non-display side of the display screen, the supporting layer covering a first side opening of the first through hole; as well as The cover plate is located at the display side of the display screen, and the cover plate covers the second side opening of the first through hole, and the second side opening is arranged opposite to the first side opening.

2. The display module according to claim 1, characterized in that: It also includes a sealing portion, which is located in the first through hole; the sealing portion covers the side wall of the display screen, or the sealing portion fills the first through hole; Preferably, the sealing portion is made of a transparent material; Preferably, the material of the sealing portion includes transparent optical glue.

3. The display module according to claim 1, characterized in that: It also includes a support member, which is located on a side of the support layer away from the display screen, the support member includes a second through hole, and an orthographic projection of the first through hole on the support layer overlaps with an orthographic projection of the second through hole on the support layer; Preferably, the orthographic projection of the first through hole on the supporting layer is located within the orthographic projection range of the second through hole on the supporting layer; Preferably, the support member comprises copper foil.

4. The display module according to claim 3, characterized in that: It also includes an optical device, which is located on a side of the support layer away from the display screen, and the orthographic projection of the optical device on the support layer at least partially overlaps with the orthographic projection of the second through hole on the support layer; Preferably, at least part of the optical device is located in the second through hole; Preferably, the optical device includes any one of a camera, a fingerprint recognition sensor, a light sensor, a distance sensor, and an ambient light sensor.

5. The display module according to claim 1, characterized in that: The display screen includes a stacked display panel and a filter layer, the filter layer is located between the display panel and the cover plate, and the first through hole penetrates the display panel and the filter layer.

6. The display module according to claim 1, characterized in that: The display screen includes a display panel, the display panel has a display area and a packaging area, the packaging area is located between the display area and the first through hole; the display panel includes a substrate and at least one barrier dam, the barrier dam is located on one side of the substrate and in the packaging area, and the barrier dam surrounds the first through hole; Preferably, the number of the barrier dams is less than or equal to 6; Preferably, the display panel further comprises a dam and an organic encapsulation layer, wherein the dam is located at one side of the substrate and at the encapsulation area, the organic encapsulation layer is located at one side of the substrate and extends from the display area to the encapsulation area, and the organic encapsulation layer terminates at a side of the dam close to the display area; Preferably, the number of the blocking dams on a side of the dam close to the first through hole is less than or equal to the number of the blocking dams on a side of the dam close to the display area.

7. A display module assembly method, characterized in that: include: attaching a support layer to the non-display side of the display screen; Punching a hole on the display side of the display screen to form a first through hole, wherein the first through hole penetrates the display screen and ends at the interface between the support layer and the display screen, and the support layer covers a first side opening of the first through hole; A cover plate is attached to the display side of the display screen, the cover plate covers the second side opening of the first through hole, and the second side opening is arranged opposite to the first side opening.

8. The combination method according to claim 7, characterized in that: After punching a hole on the display screen to form a first through hole and before attaching a cover plate to the display side of the display screen, the method further includes: A sealing portion is prepared in the first through hole, wherein the sealing portion covers a side wall of the display screen or fills the first through hole.

9. The combined method according to claim 7 or 8, characterized in that: After the cover plate is attached to the display side of the display screen, the assembly method further includes: A support member is attached to a side of the support layer facing away from the display screen, the support member comprises a second through hole, and an orthographic projection of the second through hole on the support layer overlaps with an orthographic projection of the first through hole on the support layer.

10. A display device, characterized in that: A display module comprising any one of claims 1-7.

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