Display module, manufacturing method thereof and display equipment

Abstract

The display module comprises a display panel, a protective layer and a packaging layer, wherein the display panel comprises a display area and a binding area connected with the display area; the protective layer covers the outer side of the binding area; the packaging layer is annularly arranged around the display panel; wherein one of the protection layer and the packaging layer is provided with a positioning convex part, the other one of the protection layer and the packaging layer is provided with a positioning groove, and the positioning convex part is embedded in the positioning groove.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, relates to a display module and a manufacturing method thereof, and a display device. Background Art

[0002] Display modules and display devices are widely used, especially OLED screens, which are widely used due to their advantages such as self-luminescence, low power consumption, lightness, flexibility, brilliant colors, high contrast, and fast response speed. However, since OLED materials themselves are afraid of water and oxygen, the display panel needs to be encapsulated around it.

[0003] In the related art, after the display panel is encapsulated around, the contact surface force between the encapsulation layer and the display panel is likely to be poor, and displacement may occur under the action of external force. The contact surface force between the two is poor, and the risk of defects increases. Summary of the invention

[0004] The present application aims to at least to some extent solve the technical problem of low service life of display modules. To this end, the present application provides a display module and a manufacturing method thereof, and a display device.

[0005] In a first aspect, an embodiment of the present application provides a display module, comprising:

[0006] A display panel, comprising a display area and a binding area connected to the display area;

[0007] A protective layer covering the outer side of the binding area;

[0008] A packaging layer, arranged around the display panel;

[0009] Among them, one of the protection layer and the packaging layer is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove.

[0010] A positioning protrusion is provided on one of the protective layer and the encapsulation layer, and a positioning groove is provided on the other one. The contact area between the binding area and the encapsulation layer is enhanced through the cooperation of the positioning protrusion and the positioning groove, thereby increasing the effective area between the binding area and the encapsulation layer. When subjected to external force, the effective force between the protective layer and the encapsulation layer is increased through the cooperation of the positioning protrusion and the positioning groove, thereby reducing the relative displacement between the encapsulation layer and the binding area, reducing the risk of damage to the display module, and thus increasing the service life of the entire display module.

[0011] In an optional embodiment of the present application, under the condition that a positioning protrusion is provided on the protective layer, a connection area between the positioning protrusion and the protective layer is smaller than a projection area of ​​the positioning protrusion on the protective layer.

[0012] In an optional embodiment of the present application, under the condition that a positioning protrusion is provided on the protective layer, a height of the positioning protrusion relative to the protective layer is less than or equal to 300 um.

[0013] In an optional embodiment of the present application, the maximum width of the projection surface of the positioning protrusion on the protective layer is less than or equal to 300um.

[0014] In an optional embodiment of the present application, there are multiple positioning protrusions, and the multiple positioning protrusions are arranged on the protective layer or the packaging layer.

[0015] In an optional embodiment of the present application, two adjacent positioning protrusions are spaced apart, and the spacing distance is less than or equal to 5 um.

[0016] In an optional embodiment of the present application, the shapes of any two of the positioning protrusions are the same or different.

[0017] In an optional embodiment of the present application, the cross-sectional shape of the positioning protrusion is at least one of T-shaped, L-shaped, rectangular, circular, trapezoidal, triangular and arc-shaped.

[0018] In an optional embodiment of the present application, the positioning protrusion is connected to the positioning groove by printing.

[0019] In an optional embodiment of the present application, the display module further includes an adhesive layer and a cover plate, the adhesive layer bonds the cover plate to the display surface of the display panel, and the sum of the heights of the positioning protrusion and the protective layer is less than the distance between the display panel and the cover plate.

[0020] In an optional embodiment of the present application, under the condition that the positioning protrusion is provided on the protective layer, the positioning protrusion is printed and connected to the protective layer.

[0021] In an optional embodiment of the present application, under the condition that the positioning protrusion is provided on the protective layer, the positioning protrusion and the protective layer are printed integrally.

[0022] In an optional embodiment of the present application, the material of the protective layer is the same as or different from that of the positioning protrusion.

[0023] In a second aspect, an embodiment of the present application provides a display module manufacturing method, the display module manufacturing method comprising:

[0024] Disposing a protective layer in the binding area of ​​the display panel, wherein the protective layer is formed by printing or coating;

[0025] Adhere the cover plate to the display surface of the display panel through the adhesive layer, print a positioning convex portion on a side of the protective layer away from the binding area, and bend the binding area;

[0026] A packaging layer is printed around the display panel so that the packaging layer forms a positioning groove matched with the positioning protrusion.

[0027] The display module manufacturing method provided in the second aspect has the same beneficial effects as the display module provided in the first aspect, and will not be described in detail here.

[0028] In an optional embodiment of the present application, the steps of bonding the cover plate to the display surface of the display panel through the adhesive layer, printing a positioning protrusion on a side of the protective layer away from the binding area, and bending the binding area include:

[0029] Adhere the cover plate to the display surface of the display panel via the adhesive layer;

[0030] Bending the binding area provided with the protective layer;

[0031] The positioning protrusion is printed on a side of the protective layer away from the protective layer.

[0032] In an optional embodiment of the present application, the steps of bonding the cover plate to the display surface of the display panel through the adhesive layer, printing a positioning protrusion on a side of the protective layer away from the binding area, and bending the binding area include:

[0033] Printing the positioning protrusion on a side of the protective layer away from the binding area;

[0034] Adhere the cover plate to the display surface of the display panel via the adhesive layer;

[0035] The binding area where the protection layer and the positioning protrusion are bent is provided.

[0036] In a third aspect, an embodiment of the present application provides a display device, comprising the display module provided in the first aspect.

[0037] The beneficial effects of the display device provided in the third aspect are the same as the beneficial effects of the display module provided in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic structural diagram of a display module provided in one embodiment of the present application is shown.

[0040] Figure 2 A schematic structural diagram of a display module provided in another embodiment of the present application is shown.

[0041] Figure 3 A schematic structural diagram showing a T-shaped cross section of a positioning protrusion of a display module provided by an embodiment of the present application is shown.

[0042] Figure 4 A schematic structural diagram showing a circular cross-section of a positioning protrusion of a display module provided by an embodiment of the present application.

[0043] Figure 5 A schematic structural diagram showing a positioning protrusion of a display module provided by an embodiment of the present application having a trapezoidal cross-section is shown.

[0044] Figure 6 A flow chart of a display module manufacturing method provided in an embodiment of the present application is shown.

[0045] Figure 7 A structural schematic diagram of step S100 is shown.

[0046] Figure 8 A flow chart of steps S212 to S216 of the display module manufacturing method provided in an embodiment of the present application is shown.

[0047] Fig. 9 A structural schematic diagram of step S212 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0048] Fig.10 A structural schematic diagram of step S214 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0049] Fig.11 A structural schematic diagram of step S216 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0050] Fig.12 A flow chart of steps S232 to S236 of the display module manufacturing method provided in an embodiment of the present application is shown.

[0051] Fig.13 A structural schematic diagram of step S232 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0052] Fig.14 A structural schematic diagram of step S234 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0053] Fig.15 A structural schematic diagram of step S236 in the display module manufacturing method provided in an embodiment of the present application is shown.

[0054] Fig.16 A structural schematic diagram of step S300 corresponding to steps S212 to S216 of the display module manufacturing method provided in an embodiment of the present application is shown.

[0055] Fig.17 A structural schematic diagram of step S300 corresponding to steps S232 to S236 of the display module manufacturing method provided in an embodiment of the present application is shown.

[0056] Figure numerals: 100-display module, 110-display panel, 112-display area, 113-binding area, 114-display surface, 115-non-display surface, 120-protective layer, 130-packaging layer, 140-positioning protrusion, 150-positioning groove, 160-adhesive layer, 170-cover plate, 180-back film, 190-gasket. DETAILED DESCRIPTION

[0057] 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.

[0058] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0059] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0061] Display modules and display devices are widely used, especially OLED screens, which are widely used due to their advantages such as self-luminescence, low power consumption, lightness, flexibility, brilliant colors, high contrast, and fast response speed. However, since OLED materials themselves are afraid of water and oxygen, the display panel needs to be encapsulated around it.

[0062] In the related art, after encapsulating the periphery of the display panel, the contact surface force between the encapsulation layer and the display panel is poor, and displacement is easy to occur under the action of external force. The contact surface force between the two is poor, and the risk of defects increases. The display module and its manufacturing method, and the display device provided in the embodiment of the present application can improve the above problems. The display module and its manufacturing method, and the display device provided in the embodiment of the present application can increase the force between the encapsulation layer and the display panel when they are subjected to external force, and reduce the risk of displacement of the encapsulation layer and the display panel when the entire display module is subjected to external force, thereby reducing the risk of damage to the display module and increasing the service life of the entire display module.

[0063] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0064] See also Figure 1 and Figure 2 The embodiment of the present application provides a display module 100. The display module 100 provided by the embodiment of the present application can reduce the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0065] In the embodiment of the present application, the display module 100 includes: a display panel 110, a protective layer 120 and an encapsulation layer 130, the display panel 110 includes a display area 112 and a binding area 113 connected to the display area 112; the protective layer 120 covers the outer side of the binding area 113; the encapsulation layer 130 is arranged around the display panel 110; wherein, in the protective layer 120 and the encapsulation layer 130, one is provided with a positioning protrusion 140, and the other is provided with a positioning groove 150, and the positioning protrusion 140 is embedded in the positioning groove 150.

[0066] In the embodiment of the present application, the display panel 110 includes a display area 112 and a binding area 113. The binding area 113 is bent relative to the display area 112. The electronic components of the display panel 110 can be arranged in the binding area 113, that is, the electronic components of the display panel 110 are arranged on the inner side of the binding area 113. The electronic components of the display panel 110 are arranged on the inner side of the binding area 113, which can facilitate the arrangement of the electronic components. All the electronic components are arranged on one side of the non-display surface 115 of the display area 112, so that the appearance of the entire display panel 110 is neat.

[0067] It should be noted that the binding area 113 is substantially in the shape of an arc, the inner side of the binding area 113 refers to the inside of the arc, and the outer side of the binding area 113 refers to the outside of the arc.

[0068] The protective layer 120 covers the outer side of the binding area 113, that is, the protective layer 120 is completely attached to the outer side of the binding area 113. The protective layer 120 plays a role of encapsulation and protection for the outer side of the binding area 113. The protective layer 120 can be arranged on the outer side of the binding area 113 by a coating process, or can be arranged on the outer side of the protective layer 120 by printing, or can be arranged on the outer side of the binding area 113 by other methods. The process of setting the protective layer 120 on the binding area 113 is not specifically limited.

[0069] In addition, the four sides of the display panel 110 refer to all sides except the display surface 114 of the display panel 110, and the encapsulation layer 130 is arranged on the four sides of the display panel 110, which means that except the display surface 114 of the display panel 110, all other sides can be provided with the encapsulation layer 130. The encapsulation layer 130 protects the other sides of the display panel 110 and plays a role in waterproofing and anti-oxidation.

[0070] A positioning protrusion 140 is provided on one of the protective layer 120 and the encapsulation layer 130, and a positioning groove 150 is provided on the other one. The cooperation between the positioning protrusion 140 and the positioning groove 150 enhances the contact area between the binding area 113 and the encapsulation layer 130, thereby increasing the action area between the binding area 113 and the encapsulation layer 130. When subjected to external force, the action force between the protective layer 120 and the encapsulation layer 130 is increased by the cooperation between the positioning protrusion 140 and the positioning groove 150, thereby reducing the relative displacement between the encapsulation layer 130 and the binding area 113, thereby reducing the risk of damage to the display module 100 and increasing the service life of the entire display module 100.

[0071] The positioning protrusion 140 may be disposed on the protective layer 120, and the positioning groove 150 may be disposed on the encapsulation layer 130. Alternatively, the positioning protrusion 140 may be disposed on the encapsulation layer 130, and the positioning groove 150 may be disposed on the protective layer 120. In the embodiments of the present application, for the convenience of description, the positioning protrusion 140 is disposed on the protective layer 120, and the positioning groove 150 is disposed on the encapsulation layer 130. The same may be applied to the solution in which the positioning protrusion 140 is disposed on the encapsulation layer 130, and the positioning groove 150 is disposed on the protective layer 120.

[0072] Regarding the shapes of the positioning protrusion 140 and the positioning groove 150, the two should be adapted, that is, they should be shapes that can match each other. For example, if the outer shape of the positioning protrusion 140 is spherical, the shape of the positioning groove 150 is also spherical. If the shape of the positioning protrusion 140 is trapezoidal, the positioning groove 150 is also trapezoidal. Of course, in addition to the above-mentioned regular shapes, the positioning protrusion 140 and the positioning groove 150 can also be irregular shapes that can match each other.

[0073] The cross-sectional shape of the positioning protrusion 140 can be T-shaped (eg Figure 3 As shown), L-shaped, rectangular, circular (as shown Figure 4 As shown), trapezoidal (as Figure 5 That is, the positioning protrusion 140 can be one of the above shapes, or a combination of multiple of the above shapes, and can be set according to the actual structure and shape of the protection layer 120 and the encapsulation layer 130.

[0074] The cross-sectional area of ​​the positioning protrusion 140 refers to the cross-sectional area on a plane perpendicular to the protection layer 120 .

[0075] Similarly, the number of positioning protrusions 140 and positioning grooves 150 can be set according to the size of the binding area 113. If the binding area 113 is relatively large, the number of positioning protrusions 140 and positioning grooves 150 can be set to be larger. If the binding area 113 is relatively small, the number of positioning protrusions 140 and positioning grooves 150 can be set to be larger.

[0076] In some embodiments, when the protective layer 120 is provided with the positioning protrusion 140 , the connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projection area of ​​the positioning protrusion 140 on the protective layer 120 .

[0077] When the positioning protrusion 140 is disposed on the protective layer 120, the positioning groove 150 is disposed on the encapsulation layer 130. The connection area between the positioning protrusion 140 and the protective layer 120 refers to the area of ​​the connection between the positioning protrusion 140 and the protective layer 120. If the connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projection area of ​​the positioning protrusion 140 on the protective layer 120, it means that there is a position on the positioning protrusion 140 that is larger than the connection between the positioning protrusion 140 and the protective layer 120. In other words, in multiple planes parallel to the protective layer 120, the cross-sectional area of ​​the positioning protrusion 140 on at least one of the planes is larger than the connection area.

[0078] The connection area between the positioning protrusion 140 and the protective layer 120 is smaller than the projection area of ​​the positioning protrusion 140 on the protective layer 120, indicating that in the direction in which the positioning protrusion 140 approaches the protective layer 120, the outer shape of the positioning protrusion 140 is at least partially concave inward, so that when the positioning protrusion 140 cooperates with the positioning groove 150, the positioning protrusion 140 can be clamped between the positioning groove 150, which can increase the interaction force between the positioning protrusion 140 and the positioning groove 150, reduce the risk of adverse conditions occurring between the encapsulation layer 130 and the protective layer 120 when subjected to external force, and thereby increase the service life of the entire display module 100.

[0079] It should be noted that the outer shape of the positioning protrusion 140 is at least partially concave inward, which means that the positioning protrusion 140 may have a partial outer peripheral surface that is concave inward in the direction close to the protective layer 120, or all outer peripheral surfaces of the positioning protrusion 140 may be concave inward as a whole in the direction close to the protective layer 120.

[0080] Of course, the outer peripheral surface of the positioning protrusion 140 may have multiple inwardly recessed areas in the direction close to the protective layer 120. The more inwardly recessed areas there are, the greater the force between the positioning protrusion 140 and the positioning groove 150, and the lower the risk of adverse conditions occurring between the packaging layer 130 and the protective layer 120 when subjected to external force.

[0081] In some embodiments, there are a plurality of positioning protrusions 140 , and the plurality of positioning protrusions 140 are disposed on the protection layer 120 or the encapsulation layer 130 .

[0082] If the positioning protrusion 140 is disposed on the protective layer 120 and the positioning groove 150 is disposed on the encapsulation layer 130, then a plurality of positioning protrusions 140 are disposed on the protective layer 120. If the positioning protrusion 140 is disposed on the encapsulation layer 130 and the positioning groove 150 is disposed on the protective layer 120, then a plurality of positioning protrusions 140 are disposed on the encapsulation layer 130. Again, the case where a plurality of positioning protrusions 140 are disposed on the protective layer 120 is used as an example for description. When a plurality of positioning protrusions 140 are disposed on the encapsulation layer 130, the same is true.

[0083] A plurality of positioning protrusions 140 are disposed on the protective layer 120 . The plurality of positioning protrusions 140 may be disposed continuously or at intervals. Continuous arrangement means that two adjacent positioning protrusions 140 may be connected, and interval arrangement means that there is a gap between two adjacent positioning protrusions 140 .

[0084] The plurality of positioning protrusions 140 may be arranged in a matrix on the protective layer 120 , or may be arranged in other manners on the protective layer 120 , and the arrangement manner is not specifically limited.

[0085] Likewise, the sizes of the plurality of positioning protrusions 140 may be the same or different, and are not specifically limited in the present application.

[0086] The shapes of any two positioning protrusions 140 are the same or different. That is, the shapes of the multiple positioning protrusions 140 can be all the same, or the multiple positioning protrusions 140 can have multiple different shapes, and the cross-sections of some positioning protrusions 140 can be T-shaped, the cross-sections of some positioning protrusions 140 can be L-shaped, the cross-sections of some positioning protrusions 140 can be spherical, the cross-sections of some positioning protrusions 140 can be triangular, or a combination of the above shapes.

[0087] Of course, since the positioning protrusion 140 is embedded in the positioning groove 150 , the shape of the positioning groove 150 should be compatible with the shape and size of the positioning protrusion 140 . Therefore, the shape and size of the positioning groove 150 can be inferred based on the shape and size of the positioning protrusion 140 .

[0088] In some embodiments, two adjacent positioning protrusions 140 are spaced apart, and the spacing distance is less than or equal to 5 um.

[0089] The size of the entire display module 100 is relatively small. If the spacing distance between two adjacent positioning protrusions 140 is too large, the number of positioning protrusions 140 on the protective layer 120 will be small, which will result in a smaller overall contact area between the positioning protrusions 140 and the positioning grooves 150. The spacing distance between two adjacent positioning protrusions 140 is less than or equal to 5um. While ensuring the contact area between a single positioning protrusion 140 and the positioning groove 150, the number of positioning protrusions 140 can be increased, thereby increasing the overall contact area between the positioning protrusions 140 and the positioning grooves 150. This can reduce the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, reduce the risk of damage to the display module 100, and thus increase the service life of the entire display module 100.

[0090] The spacing distance between two adjacent positioning protrusions 140 may be one of 1um, 2um, 3um, 4um, and 5um.

[0091] In some embodiments, the display module 100 further includes an adhesive layer 160 and a cover plate 170 , the adhesive layer 160 bonds the cover plate 170 to the display surface 114 of the display panel 110 , and the height sum of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display panel 110 and the cover plate 170 .

[0092] The adhesive layer 160 is used to bond the cover plate 170 and the display surface 114. The positioning protrusion 140 is arranged on the binding area 113. If the positioning protrusion 140 is formed on the protective layer 120 before the binding area 113 is bent, in order to avoid interference between the positioning protrusion 140 and the cover plate 170, the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the distance between the display panel 110 and the cover plate 170, that is, less than the thickness of the adhesive layer 160.

[0093] When manufacturing the display module 100, the cover plate 170 is generally first bonded to the display surface 114 of the display panel 110 through the adhesive layer 160, and then the binding area 113 is bent to the non-display surface 115 of the display panel 110 (the display surface 114 and the non-display surface 115 are respectively located on the opposite sides of the display area 112). If the positioning protrusion 140 is set before the binding area 113 is bent, the interference between the positioning protrusion 140 and the cover plate 170 needs to be considered. If the positioning protrusion 140 is set after the binding area 113 is bent, the height of the positioning protrusion 140 is not limited by the above situation.

[0094] The height of the positioning protrusion 140 refers to the height of the positioning protrusion 140 protruding from the protective layer 120, that is, the height of the positioning protrusion 140 refers to the height of the positioning protrusion 140 relative to the protective layer 120. The height of the protective layer 120 can be considered as the thickness of the protective layer 120, and the sum of the heights of the positioning protrusion 140 and the protective layer 120 is the height of the positioning protrusion 140 relative to the protective layer 120 plus the thickness of the protective layer 120.

[0095] In some embodiments, the thickness of the adhesive layer 160 is less than or equal to 300 um, and the thickness of the general protection layer 120 can be ignored, so the height of the positioning protrusion 140 can be less than or equal to 300 um, so as to avoid interference between the positioning protrusion 140 and the cover plate 170 as much as possible.

[0096] Of course, in the case where the binding area 113 is bent first and then the positioning protrusion 140 is set, the height of the positioning protrusion 140 can be set to be less than or equal to 300um. The height of the positioning protrusion 140 is less than or equal to 300um, which can adapt to the size of the entire display module 100. If the positioning protrusion 140 is set relatively large, it will cause the positioning protrusion 140 to protrude outside the encapsulation layer 130, and the size of the positioning protrusion 140 is relatively large, which will make the number of positioning protrusions 140 set on the protective layer 120 small, resulting in the encapsulation layer 130 and the protective layer 120. Local conditions will also occur when the encapsulation layer 130 and the protective layer 120 are impacted by external forces. The height of the positioning protrusion 140 can be set to be less than or equal to 300um, while ensuring the contact area between a single positioning protrusion 140 and the positioning groove 150, the positioning protrusion 140 can be set at various positions of the protective layer 120 as much as possible, thereby reducing the risk of adverse conditions in the entire display module 100 as much as possible, thereby improving the service life of the display module 100.

[0097] The height of the positioning protrusion 140 may be one of 50um, 100um, 150um, 200um, 250um, and 300um. The heights of the plurality of positioning protrusions 140 may be different or the same.

[0098] As for the size of a single positioning protrusion 140, the maximum width of the projection surface of the positioning protrusion 140 on the protective layer 120 is less than or equal to 300um. If the size of the positioning protrusion 140 is set larger, it will result in a smaller number of positioning protrusions 140 on the protective layer 120. Due to the different shapes of the positioning protrusions 140, the maximum spacing distance between two adjacent positioning protrusions 140 increases, and under the condition of large force, it is easy for the positioning protrusion 140 and the positioning groove 150 to move. When the maximum width of the projection surface of the positioning protrusion 140 on the protective layer 120 is less than or equal to 300um, the contact area between the positioning protrusion 140 and the positioning groove 150 can be guaranteed while the number of the positioning protrusion 140 can be guaranteed, thereby increasing the total contact area between the positioning protrusion 140 and the positioning groove 150, and minimizing the risk of bad conditions in the entire display module 100, thereby increasing the service life of the display module 100.

[0099] The maximum width of the projection surface of the positioning protrusion 140 on the protective layer 120 can be one of 50um, 100um, 150um, 200um, 250um, and 300um. The maximum widths of the projection surfaces of the positioning protrusions 140 on the protective layer 120 can be different or the same.

[0100] In some embodiments, the positioning protrusion 140 is printedly connected to the positioning groove 150 .

[0101] The positioning protrusion 140 and the positioning groove 150 are connected by printing. Specifically, after the binding area 113 is bent and the positioning protrusion 140 is set on the protective layer 120, the encapsulation layer 130 is printed around the display panel 110. The printing method has high precision, and the gap between two adjacent positioning protrusions 140 can be embedded with the printing material, so that the printing material can be wrapped around the positioning protrusion 140, forming the positioning groove 150 embedded with the positioning protrusion 140, and increasing the contact area between the positioning protrusion 140 and the positioning groove 150.

[0102] That is to say, the encapsulation layer 130 is arranged on the protective layer 120 by printing. During the printing process, since the positioning protrusion 140 protrudes from the protective layer 120, by filling the printing material around the positioning protrusion 140, it can adapt to the shape of the positioning protrusion 140, and form a positioning groove 150 adapted to the positioning protrusion 140 on the encapsulation layer 130. The adaptability of the positioning protrusion 140 and the positioning groove 150 can be improved, and the mismatch between the positioning protrusion 140 and the positioning groove 150 can be minimized, and the contact area between the positioning protrusion 140 and the positioning groove 150 can be increased, so as to minimize the risk of adverse conditions in the entire display module 100, thereby improving the service life of the display module 100.

[0103] In some embodiments, under the condition that the protective layer 120 is provided with the positioning protrusion 140 , the positioning protrusion 140 is connected to the protective layer 120 by printing.

[0104] If the positioning protrusion 140 is provided after the binding area 113 is bent, the positioning protrusion 140 can be connected to the protective layer 120 by printing, that is, the positioning protrusion 140 and the protective layer 120 are connected by printing, and the coating material can be first coated on the outer side of the binding area 113 to form the protective layer 120 on the outer side of the binding area 113. Then, the positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113.

[0105] That is to say, in this case, the positioning protrusion 140 and the protective layer 120 are formed separately, and the coating material can be applied to the binding area 113 before the binding area 113 is bent to form the protective layer 120. After the binding area 113 is bent, the positioning protrusion 140 is printed on the protective layer 120, and finally the encapsulation layer 130 is printed around the display panel 110 below the cover plate 170.

[0106] When the positioning protrusion 140 and the protective layer 120 are formed separately, the positioning protrusion 140 and the protective layer 120 can be made of different materials. The protective layer 120 can be made of a coating material, and the positioning protrusion 140 can be made of a printing material. It can be applicable to the case where the height of the positioning protrusion 140 is greater than the gap between the display surface 114 and the cover plate 170. In this case, the coating material is applied to the binding area 113 to form the protective layer 120, and then the binding area 113 is bent. After the binding area 113 is bent, the positioning protrusion 140 is printed on the protective layer 120, and finally the encapsulation layer 130 is printed around the display panel 110.

[0107] In addition, the positioning protrusion 140 and the protective layer 120 can also be made of the same material. The protective layer 120 can be first printed in the binding area 113, and then the binding area 113 is bent. After bending, the positioning protrusion 140 is printed on the protective layer 120, and finally the encapsulation layer 130 is printed around the display panel 110.

[0108] In some other embodiments, under the condition that the positioning protrusion 140 is provided on the protective layer 120 , the positioning protrusion 140 and the protective layer 120 are printed and formed integrally.

[0109] The positioning protrusion 140 and the protective layer 120 can be directly formed by printing materials. In this case, it can be suitable for the case where the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170. The protective layer 120 and the positioning protrusion 140 are first printed integrally on the binding area 113. Since the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170, the positioning protrusion 140 will not interfere with the cover plate 170.

[0110] In this case, the protective layer 120 and the positioning protrusion 140 can be printed with the same printing material, and the protective layer 120 and the positioning protrusion 140 are printed integrally on the outside of the binding area 113, and then the binding area 113 provided with the protective layer 120 and the positioning protrusion 140 is bent, and finally the encapsulation layer 130 is printed around the display panel 110 to encapsulate the display panel 110.

[0111] In some implementations, the display module 100 further includes a back film 180 and a gasket 190 . The back film 180 is disposed on the non-display surface 115 of the display area 112 , and the gasket 190 is disposed between the back film 180 and the binding area 113 .

[0112] To summarize, the display module 100 provided in the embodiment of the present application has a positioning protrusion 140 on one of the protective layer 120 and the encapsulation layer 130, and a positioning groove 150 on the other one. The cooperation between the positioning protrusion 140 and the positioning groove 150 enhances the contact area between the binding area 113 and the encapsulation layer 130, thereby increasing the effective area between the binding area 113 and the encapsulation layer 130. When subjected to external force, the effective force between the protective layer 120 and the encapsulation layer 130 is increased by the cooperation between the positioning protrusion 140 and the positioning groove 150, thereby reducing the relative displacement between the encapsulation layer 130 and the binding area 113, reducing the risk of damage to the display module 100, and thereby improving the service life of the entire display module 100.

[0113] Based on the same inventive concept, the embodiment of the present application also provides a display module manufacturing method. The display module manufacturing method provided by the embodiment of the present application is mainly used to manufacture the above-mentioned display module 100. The display module manufacturing method provided by the embodiment of the present application can reduce the risk of displacement of the encapsulation layer 130 and the display panel 110 when the entire display module 100 is subjected to external force, thereby reducing the risk of damage to the display module 100 and improving the service life of the entire display module 100.

[0114] The specific structure of the display module 100 can refer to the above description, which will not be repeated here. The specific steps of the display module manufacturing method are as follows:

[0115] See also Figure 6 and Figure 7 , step S100 , setting a protection layer 120 in the binding area 113 .

[0116] The protective layer 120 plays a protective role on the binding area 113 and can be waterproof and moisture-proof. The protective layer 120 needs to completely cover the outside of the binding area 113. The protective layer 120 can be formed on the binding area 113 by coating. Specifically, a coating material can be coated on the outside of the binding area 113 to form the protective layer 120. It can also be formed by printing. Specifically, a printed material is printed on the outside of the binding area 113 to form the protective layer 120.

[0117] In step S200 , the cover plate 170 is bonded to the display surface 114 of the display panel 110 through the adhesive layer 160 , the positioning protrusion 140 is printed on the side of the protection layer 120 away from the binding area 113 , and the binding area 113 is bent.

[0118] After the protective layer 120 is set, it is necessary to set the protective layer 120 in the binding area 113 and bend the binding area 113. Before bending, the connection between the binding area 113 and the display area 112 is located below the cover plate 170. When the positioning protrusion 140 is set first, in order to avoid interference between the positioning protrusion 140 and the display panel 110, there are requirements for the size of the positioning protrusion 140. Different methods can be selected according to the different sizes of the positioning protrusion 140. In this regard, two methods will be described in detail, among which steps S212 to S216 are one method, and steps 321 to S325 are another method.

[0119] See also Figure 8 , wherein step S200 may include step S212, step S214 and step S216.

[0120] See also Figure 8 and Fig. 9 , step S212 , bonding the cover plate 170 to the display surface 114 of the display panel 110 through the adhesive layer 160 .

[0121] The display panel 110 includes a display area 112 and a binding area 113. The display area 112 has a display surface 114 and a non-display surface 115 that are disposed opposite to each other. The cover plate 170 is first bonded to the display surface 114 of the display panel 110 through the adhesive layer 160. The cover plate 170 is protruded from the display surface 114, that is, the cover plate 170 completely covers the display surface 114 and has an area larger than the display surface 114.

[0122] There is no order between step S100 and step S212. Step S100 may be performed first and then step S212, or step S212 may be performed first and then step S100. Step S100 and step S212 may also be performed simultaneously.

[0123] See also Figure 8 and Fig.10 , step S214 , bending the binding area 113 provided with the protection layer 120 .

[0124] After the protective layer 120 is set, the binding area 113 and the protective layer 120 are bent as a whole, so that at least a part of the binding area 113 can be bent to one side of the non-display surface 115, thereby facilitating the arrangement of electronic components of the display panel 110.

[0125] See also Figure 8 and Fig.11 , step S216 , printing a positioning protrusion 140 on a side of the protective layer 120 away from the binding area 113 .

[0126] After bending the protective layer 120 and the binding area 113 as a whole, the positioning protrusion 140 is printed on the side of the protective layer 120 away from the binding area 113. This method is suitable for the situation where the height of the positioning protrusion 140 and the protective layer 120 is greater than the spacing distance between the display surface 114 and the cover plate 170, which can avoid interference between the positioning protrusion 140 and the cover plate 170.

[0127] Of course, the situation where the height of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170 can also be set in the manner of steps S212 to S216.

[0128] See also Fig.12 In addition, step S200 may also include step S232, step S234 and step S236.

[0129] See also Fig.12 and Fig.13 , step S232 , printing a positioning protrusion 140 on a side of the protective layer 120 away from the binding area 113 .

[0130] The positioning protrusion 140 can be printed on the outer side of the binding area 113 before the binding area 113 is bent. Since the protective layer 120 and the positioning protrusion 140 are set before the binding area 113 is bent, it is necessary to avoid interference between the positioning protrusion 140 and the cover plate 170, and it is necessary to ensure that the height sum of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170. In other words, in this case, the height sum of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170, the method of steps S232 to S236 can be adopted.

[0131] In addition, the protective layer 120 and the positioning protrusion 140 can be printed in one piece, which means that the protective layer 120 and the positioning protrusion 140 are set at the same time by printing. There are multiple orders, such as printing the protective layer 120 first and then printing the positioning protrusion 140, or printing the protective layer 120 and the positioning protrusion 140 at the same time. Providing the protective layer 120 and the positioning protrusion 140 in an integrated manner can reduce the manufacturing process, and the positioning accuracy of the positioning protrusion 140 on the protective layer 120 can also be improved by printing.

[0132] See also Fig.12 and Fig.14 , step S234 , bonding the cover plate 170 to the display surface 114 of the display panel 110 through the adhesive layer 160 .

[0133] The display panel 110 includes a display area 112 and a binding area 113, and the display area 112 has a display surface 114 and a non-display surface 115 that are disposed opposite to each other. The cover plate 170 is first bonded to the display surface 114 of the display panel 110 through the adhesive layer 160, wherein the cover plate 170 is protruding from the display surface 114, that is, the cover plate 170 completely covers the display surface 114, and the area is larger than the display surface 114.

[0134] See also Fig.12 and Fig.15 , step S236, bending the binding area 113 provided with the protection layer 120 and the positioning protrusion 140.

[0135] After printing the positioning protrusion 140 , the binding area 113 , the positioning protrusion 140 and the protective layer 120 are bent as a whole so that at least part of the binding area 113 can be bent to one side of the non-display surface 115 , thereby facilitating the arrangement of electronic components of the display panel 110 .

[0136] That is to say, the embodiment of the present application provides two ways of setting the positioning protrusion 140, wherein steps S312 to S316 can be applicable to two situations: the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170, and the sum of the heights of the positioning protrusion 140 and the protective layer 120 is greater than or equal to the spacing distance between the display surface 114 and the cover plate 170, while steps S232 to S236 are only applicable to one situation: the sum of the heights of the positioning protrusion 140 and the protective layer 120 is less than the spacing distance between the display surface 114 and the cover plate 170.

[0137] See also Figure 6 , Fig.16 and Fig.17 In step S300 , the encapsulation layer 130 is printed around the display panel 110 so that the encapsulation layer 130 forms a positioning groove 150 that cooperates with the positioning protrusion 140 .

[0138] The encapsulation layer 130 is arranged on the protective layer 120 by printing. During the printing process, since the positioning protrusion 140 protrudes from the protective layer 120, by filling the printing material around the positioning protrusion 140, it can adapt to the shape of the positioning protrusion 140, and form a positioning groove 150 adapted to the positioning protrusion 140 on the encapsulation layer 130. The adaptability of the positioning protrusion 140 and the positioning groove 150 can be improved, and the mismatch between the positioning protrusion 140 and the positioning groove 150 can be minimized, and the contact area between the positioning protrusion 140 and the positioning groove 150 can be increased, so as to minimize the risk of adverse conditions in the entire display module 100, thereby improving the service life of the display module 100.

[0139] To sum up, the display module manufacturing method provided in the embodiment of the present application enhances the contact area between the binding area 113 and the encapsulation layer 130 by printing the positioning protrusion 140 on the protective layer 120 and then printing the encapsulation layer 130 on the outer side of the positioning protrusion 140, thereby increasing the effective area between the binding area 113 and the encapsulation layer 130. When subjected to external force, the acting force between the protective layer 120 and the encapsulation layer 130 is increased through the cooperation of the positioning protrusion 140 and the positioning groove 150, which can reduce the relative displacement between the encapsulation layer 130 and the binding area 113, thereby reducing the risk of damage to the display module 100 and increasing the service life of the entire display module 100.

[0140] Based on the same inventive concept, the embodiment of the present application further provides a display device, including the above-mentioned display module 100. The display device can be a display device with interactive functions such as an electronic whiteboard, a household appliance with display functions, or a wearable device.

[0141] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0142] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0143] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A display module, characterized in that: include: A display panel, comprising a display area and a binding area connected to the display area; A protective layer covering the outer side of the binding area; A packaging layer, arranged around the display panel; Among them, one of the protection layer and the packaging layer is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is embedded in the positioning groove.

2. The display module according to claim 1, characterized in that: Under the condition that the protective layer is provided with a positioning protrusion, a connection area between the positioning protrusion and the protective layer is smaller than a projection area of ​​the positioning protrusion on the protective layer.

3. The display module according to claim 1, characterized in that: Under the condition that the protective layer is provided with a positioning protrusion, the height of the positioning protrusion relative to the protective layer is less than or equal to 300 um.

4. The display module according to claim 1, characterized in that: The maximum width of the projection surface of the positioning protrusion on the protective layer is less than or equal to 300um.

5. The display module according to claim 1, characterized in that: There are a plurality of positioning protrusions, and the plurality of positioning protrusions are arranged on the protection layer or the packaging layer.

6. The display module according to claim 5, characterized in that: Two adjacent positioning protrusions are arranged at intervals, and the interval distance is less than or equal to 5um.

7. The display module according to claim 5, characterized in that: The shapes of any two positioning protrusions are the same or different.

8. The display module according to claim 1, characterized in that: The cross-sectional shape of the positioning protrusion is at least one of T-shaped, L-shaped, rectangular, circular, trapezoidal, triangular and arc-shaped.

9. The display module according to any one of claims 1 to 8, characterized in that: The positioning protrusion is printed and connected to the positioning groove.

10. The display module according to any one of claims 1 to 8, characterized in that: The display module further includes an adhesive layer and a cover plate, wherein the adhesive layer bonds the cover plate and the display surface of the display panel, and the sum of the heights of the positioning protrusion and the protective layer is smaller than the distance between the display panel and the cover plate.

11. The display module according to any one of claims 1 to 8, characterized in that: Under the condition that the positioning protrusion is provided on the protective layer, the positioning protrusion and the protective layer are printed and formed integrally.

12. The display module according to any one of claims 1 to 8, characterized in that: Under the condition that the positioning protrusion is provided on the protective layer, the positioning protrusion is connected to the protective layer by printing.

13. The display module according to any one of claims 1 to 8, characterized in that: The material of the protection layer and the positioning protrusion is the same as or different from that of the positioning protrusion.

14. A method for manufacturing a display module, characterized in that: The display module manufacturing method comprises: Disposing a protective layer in the binding area of ​​the display panel, wherein the protective layer is formed by printing or coating; Adhere the cover plate to the display surface of the display panel through the adhesive layer, print a positioning convex portion on a side of the protective layer away from the binding area, and bend the binding area; A packaging layer is printed around the display panel so that the packaging layer forms a positioning groove matched with the positioning protrusion.

15. The method for manufacturing a display module according to claim 14, characterized in that: The steps of bonding the cover plate to the display surface of the display panel through the adhesive layer, printing a positioning convex portion on a side of the protective layer away from the binding area, and bending the binding area include: Adhere the cover plate to the display surface of the display panel via the adhesive layer; Bending the binding area provided with the protective layer; The positioning protrusion is printed on a side of the protective layer away from the protective layer.

16. The method for manufacturing a display module according to claim 14, wherein: The steps of bonding the cover plate to the display surface of the display panel through the adhesive layer, printing a positioning convex portion on a side of the protective layer away from the binding area, and bending the binding area include: Printing the positioning protrusion on a side of the protective layer away from the binding area; Adhere the cover plate to the display surface of the display panel via the adhesive layer; The binding area where the protection layer and the positioning protrusion are bent is provided.

17. A display device, characterized in that: Comprising a display module as described in any one of claims 1-13.

Images