Display module and display device

Abstract

The application discloses a display module and a display device, and belongs to the technical field of display. The display module comprises a display panel, a flexible circuit board, a protective tape and a pasting accessory. The application sets the pasting accessory on the side of the protective tape facing or facing away from the first panel part. The pasting accessory can play the role of buffering and filling the virtual pasting area or can play the role of making the inner side of the corresponding virtual pasting area part of the protective tape glue-free. In this way, under the condition that the user presses the display device, even if the display module and the shell move due to the deformation caused by pressing, the protective tape cannot be attached to the flexible circuit board or the second panel part, and therefore the problem of abnormal sound caused by the rebound of the protective tape does not occur.

Description

Technical Field

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

[0002] With the development of technology, the demand for narrow bezels and thinness in display devices is increasing. LCD displays can no longer meet market demands. Against the backdrop of the rapid development of Organic Light-Emitting Diode (OLED) display technology, using flexible display panels to fabricate display modules can achieve the requirement of narrow bezels. For flexible display panels, the flexible circuit board bonded to the display panel needs to be placed on the back of the panel, and protective tape is used to cover the electronic components on the flexible circuit board. The protective tape is usually loosely applied around the electronic components.

[0003] With the demand for thinner and lighter devices, the gap between the display device's casing (or mid-frame) and the display module is getting smaller and smaller. When users use the display device, pressing operations can cause the mid-frame to squeeze the protective tape of the display module. In areas where the protective tape is not properly attached, there will be abnormal sounds of the tape rebounding. Utility Model Content

[0004] This application provides a display module and a display device. It solves the problem of rebound noise caused by the protective tape in existing display modules. The technical solution is as follows:

[0005] On the one hand, a display module is provided, including: a display panel, a flexible circuit board, protective tape, and adhesive accessories;

[0006] The display panel includes: a first panel portion and a second panel portion disposed opposite to each other, and a panel bending portion for connecting the first panel portion and the second panel portion; the display area of ​​the display panel is located within the first panel portion;

[0007] The flexible circuit board is bonded to the second panel, and the side of the flexible circuit board opposite to the display panel has electronic components.

[0008] The protective tape is located on the side of the flexible circuit board and the second panel that is away from the first panel. The protective tape covers the electronic components and has a surrounding protective portion around the electronic components.

[0009] The adhesive attachment is in direct contact with the protective tape, and the orthographic projection of the adhesive attachment on the first panel overlaps with the orthographic projection of the surrounding protective part on the first panel.

[0010] Optionally, the orthographic projection of the attachment on the first panel portion is located within the orthographic projection of the surrounding protective portion on the first panel portion.

[0011] Optionally, the portion of the surrounding protective portion distributed in the first direction between the electronic component and the panel bending portion is: a first inclined portion; the first direction is a direction perpendicular to the bending axis of the panel bending portion and parallel to the direction of the first panel portion;

[0012] Wherein, the orthographic projection of the attachment on the first panel portion is located within the orthographic projection of the first inclined portion on the first panel portion.

[0013] Optionally, the adhesive attachment is an elastic buffer layer, the thickness of which is greater than the thickness of the protective tape.

[0014] Optionally, the buffer layer is attached to the side of the first inclined portion that is away from the flexible circuit board.

[0015] Optionally, in the first direction, the buffer layer protrudes from the flexible circuit board on the side facing the panel bend.

[0016] Optionally, in the first direction, the distance between the buffer layer and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction X, the distance between the buffer layer and the edge of the first inclined portion facing away from the electronic component is greater than or equal to 0.5 mm.

[0017] Optionally, the buffer layer is attached to the side of the first inclined portion facing the flexible circuit board.

[0018] Optionally, the orthographic projection of the buffer layer on the first panel portion is located within the orthographic projection of the flexible circuit board on the first panel portion.

[0019] Optionally, in the first direction, the distance between the buffer layer and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction, the distance between the buffer layer and the edge of the flexible circuit board facing the panel bend is greater than or equal to 0.5 mm.

[0020] Optionally, the thickness of the buffer layer is greater than or equal to 0.2 mm.

[0021] Optionally, the attachment is a filling portion that fills the space between the first inclined portion and the flexible circuit board. The filling portion is attached to the side of the first inclined portion facing the flexible circuit board, and the side of the filling portion away from the first inclined portion abuts against the flexible circuit board.

[0022] Optionally, the orthographic projection of the filling portion on the first panel portion is located within the orthographic projection of the flexible circuit board on the first panel portion;

[0023] In the first direction, the distance between the filling portion and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction X, the distance between the filling portion and the edge of the flexible circuit board facing the panel bend is greater than or equal to 0.5 mm.

[0024] Optionally, the surface of the attachment away from the first inclined portion has a non-adhesive area or a reduced-adhesion area, and the attachment is attached to the side of the first inclined portion facing the flexible circuit board.

[0025] Optionally, the thickness of the adhesive attachment is less than the thickness of the protective tape.

[0026] Optionally, in the inclined extension direction of the first inclined portion, the width of the attachment is less than or equal to the width of the first inclined portion.

[0027] Optionally, in a second direction parallel to the bending axis of the panel bend, the length of the attachment is less than or equal to the length of the electronic component.

[0028] Optionally, in the first direction, the first inclined portion protrudes from the flexible circuit board on the side facing the panel bend, and the side of the first inclined portion facing the panel bend contacts the second panel portion;

[0029] The portion of the surrounding protective section that is distributed in the first direction on the electronic component away from the panel bend is: the second inclined section;

[0030] Wherein, the angle between the first inclined portion and the second panel portion is smaller than the angle between the second inclined portion and the flexible circuit board.

[0031] Optionally, the portion of the protective tape covering the electronic component is a component protection portion, and the protective tape also has a panel protection portion, which is connected to the component protection portion through the surrounding protection portion;

[0032] The panel protection portion is distributed around the surrounding protection portion; a portion of the panel protection portion is attached to the flexible circuit board, and another portion is attached to the second panel portion.

[0033] On the other hand, a display module is provided, including: a display panel, a flexible circuit board, and a protective tape;

[0034] The display panel includes: a first panel portion and a second panel portion disposed opposite to each other, and a panel bending portion for connecting the first panel portion and the second panel portion; the display area of ​​the display panel is located within the first panel portion;

[0035] The flexible circuit board is bonded to the second panel portion, and the side of the flexible circuit board opposite to the display panel has electronic components; the flexible circuit board and the second panel portion are arranged along a first direction;

[0036] The protective tape is located on the side of the flexible circuit board and the second panel that is opposite to the first panel, and the protective tape covers the electronic components.

[0037] The protective tape has slits, which are at least distributed on the side of the electronic component facing the panel bend in the first direction.

[0038] Optionally, the portion of the protective tape covering the electronic component is a component protection portion, and the portion of the protective tape distributed between the electronic component and the panel bending portion is a first protection portion; the component protection portion and the first protection portion have the cutout.

[0039] Optionally, the first protective portion is attached to the flexible circuit board on the side facing the first panel portion and is also attached to the second panel portion.

[0040] Optionally, in the first direction, the width of the device protection portion protruding from the electronic component on the side facing the panel bend is less than or equal to 0.5 mm.

[0041] Optionally, in a second direction parallel to the bending axis of the panel bend, the length of the cut is greater than or equal to the length of the electronic component.

[0042] On the other hand, a display device is provided, comprising: a housing, and a display module connected to the housing, wherein the display module is any of the display modules described above.

[0043] The beneficial effects of the technical solutions provided in this application are:

[0044] By setting an attachment on the side of the protective tape facing or away from the first panel, the attachment can buffer and fill the unattached area, or it can remove the adhesive from the inside of the unattached area of ​​the protective tape. In this way, when the user presses the display device, even if the display module and the housing move due to the deformation caused by the pressing, the protective tape cannot be attached to the flexible circuit board or the second panel, so there will be no problem of the protective tape rebounding and making noise. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of a display module without protective tape provided in one embodiment;

[0047] Figure 2 A schematic diagram of a display module with protective tape attached according to one embodiment;

[0048] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the display module at point AA;

[0049] Figure 4 This is a schematic diagram of the structure of the display module provided in the embodiments of this application;

[0050] Figure 5 This is another schematic diagram of the structure of the display module provided in the embodiments of this application;

[0051] Figure 6 This is another schematic diagram of the structure of the display module provided in the embodiments of this application;

[0052] Figure 7 This is a schematic diagram of the structure of a display module provided in another embodiment of this application;

[0053] Figure 8 This is a schematic diagram of another structure of a display module provided in another embodiment of this application;

[0054] Figure 9 This is a top view of the display module provided in an embodiment of this application;

[0055] Figure 10 This is a schematic diagram of the structure of a display module provided in another embodiment of this application;

[0056] Figure 11 for Figure 10 The diagram shows a cross-sectional view of the display module at point AA;

[0057] Figure 12 This is a schematic diagram of another structure of a display module provided in another embodiment of this application. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0059] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of a display module without protective tape according to one embodiment. Figure 2 This is a schematic diagram of a display module with protective tape attached according to one embodiment. Figure 3 for Figure 2 The cross-sectional view of the display module shown at point AA shows that electronic components 003 are generally mounted on the flexible circuit board 002 of the display module 000. These components need to be protected by protective tape 004 to achieve electromagnetic shielding, anti-static, and other protective effects. However, because the electronic components 003 have a certain thickness, they protrude relative to the flexible circuit board 002. As a result, the protective tape 004 cannot adhere to the side of the electronic components 003, creating a loosely attached area 005 on the outer periphery of the electronic components 003.

[0060] For example, in display devices such as smartphones or smart tablets, users need to press the display module 000 when using the device, causing relative deformation between the display module 000 and the housing (middle frame), resulting in pressure between the housing and the display module 000. This causes the protective tape 004 in the aforementioned loosely attached area 005 to be squeezed by the housing. Under pressure, the protective tape 004 adheres to the flexible circuit board 002 or the second panel 001b. When the user releases the pressure, the portion of the protective tape 004 corresponding to the loosely attached area 005 peels off from the flexible circuit board 002 or the second panel 001b and springs back. This peeling and springing back of the protective tape 004 produces abnormal noise, resulting in a poor user experience.

[0061] In some embodiments, the electronic component 003 is positioned near the panel bend 001c. Thus, the dummy area 005 extends onto the second panel portion 001b. The portion of the dummy area 005 located on the side of the electronic component 003 near the panel bend 001c has a larger area than dummy areas 005 at other locations. For ease of description, the portion of the dummy area 005 located on the side of the electronic component 003 near the panel bend 001c is defined as the target dummy area 005a. Consequently, the aforementioned abnormal noise problem is more pronounced in the target dummy area 005a than in other dummy areas 005, and the probability of abnormal noise is also higher.

[0062] This application provides a display module; please refer to... Figures 4 to 7 , Figure 4 This is a schematic diagram of the structure of the display module provided in the embodiment of this application. Figure 5 This is another structural schematic diagram of the display module provided in an embodiment of this application. Figure 6 This is another schematic diagram of the display module provided in the embodiments of this application. Figure 7 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. The display module 000 may include: a display panel 001, a flexible circuit board 002, a protective tape 004, and an attachment 006.

[0063] The display panel 001 may include: a first panel portion 001a and a second panel portion 001b disposed opposite to each other, and a panel bending portion 001c for connecting the first panel portion 001a and the second panel portion 001b; the display area of ​​the display panel 001 is located within the first panel portion 001a.

[0064] The flexible circuit board 002 is bonded to the second panel 001b, and the side of the flexible circuit board 002 facing away from the display panel 001 has electronic components 003.

[0065] The protective tape 004 is located on the side of the flexible circuit board 002 and the second panel portion 001b opposite to the first panel portion 001a. The protective tape 004 covers the electronic component 003 and has a surrounding protective portion 004b disposed around the electronic component 003.

[0066] The attachment 006 is in direct contact with the protective tape 004, and the orthographic projection of the attachment 006 on the first panel 001a overlaps with the orthographic projection of the surrounding protective part 004b on the first panel 001a.

[0067] In this embodiment of the application, at the position corresponding to the false adhesive area 005, an adhesive attachment 006 is provided on the side of the protective tape 004 facing or away from the first panel portion 001a, and the above-mentioned abnormal noise problem is eliminated by attaching the adhesive attachment 006.

[0068] For example, when the attachment 006 is located on the side of the protective tape 004 away from the first panel portion 001a, after the display module 000 is connected to the housing, the attachment 006 can be abutted by the housing. The housing uses the attachment 006 to press the portion of the protective tape 004 corresponding to the loosely attached area 005 onto the flexible circuit board 002 or the second panel portion 001b, ensuring that this portion of the protective tape 004 remains in an adhered state. Thus, even if the display module 000 and the housing move due to deformation caused by pressing when the user presses the display device, the protective tape 004 will not loosen and spring back, and the display device will not experience the aforementioned abnormal noise problem.

[0069] For example, when the attachment 006 is located on the side of the protective tape 004 facing the first panel portion 001a, since the attachment 006 is present in the dummy area 005, the attachment 006 can fill the dummy area 005; and / or, it can remove the adhesive from the inner side of the portion of the protective tape 004 corresponding to the dummy area 005. In this way, when the user presses the display device, even if the display module 000 and the housing move due to the pressing deformation, the protective tape 004 cannot be attached to the flexible circuit board 002 or the second panel portion 001b, so there will be no problem of the protective tape 004 rebounding and making abnormal noise.

[0070] like Figures 4 to 7 As shown in the embodiments of this application, the protective tape 004 can be divided into multiple functional parts according to its position and attachment. In some possible implementations, the part of the protective tape 004 that covers the electronic component 003 is: the device protection part 004a. The protective tape 004 also has a panel protection part 004c, which is connected to the device protection part 004a by surrounding the protection part 004b.

[0071] The panel protection portion 004c is distributed around the surrounding protection portion 004b; a portion of the panel protection portion 004c is attached to the flexible circuit board 002, and another portion is attached to the second panel portion 001b. The surrounding protection portion 004b is separately disposed from the flexible circuit board 002 and also separately disposed from the second panel portion 001b.

[0072] Among some possible implementations, such as Figures 4 to 7 As shown, the orthographic projection of the attachment 006 on the first panel 001a is located within the orthographic projection of the surrounding protective part 004b on the first panel 001a.

[0073] In this embodiment, the attachment 006 may not be located between the device protection part 004a and the electronic component 003, or between the panel protection part 004c and the second panel part 001b. This prevents the housing from being pressed against the electronic component 003 or the second panel part 001b by the user when pressing the display device, thus avoiding affecting the display function of the display module 000.

[0074] Among some possible implementations, such as Figures 4 to 7 As shown, the portion of the surrounding protective portion 004b distributed in the first direction X between the electronic component 003 and the panel bending portion 001c is: the first inclined portion 004b1; the first direction X is the bending axis perpendicular to the panel bending portion 001c and parallel to the direction of the first panel portion 001a.

[0075] Among them, the orthographic projection of the attachment 006 on the first panel portion 001a is located within the orthographic projection of the first inclined portion 004b1 on the first panel portion 001a.

[0076] In this embodiment, the attachment 006 may be distributed only in the area corresponding to the target dummy area 005a. This area is where the user applies greater pressure and presses more frequently, and it is also where the housing and display module 000 are more prone to deformation and compression. In this way, the attachment 006 can effectively eliminate the abnormal noise problem caused by the rebound of the protective tape 004 in the area corresponding to the target dummy area 005a, that is, the abnormal noise problem caused by the rebound of the first inclined part 004b1 due to the rebound of the dummy application.

[0077] Among some possible implementations, such as Figures 4 to 6 As shown, the attachment 006 can be an elastic buffer layer 006a, and the thickness of the buffer layer 006a is greater than the thickness of the protective tape 004.

[0078] In this embodiment, the attachment 006 can be a buffer layer 006a with a certain thickness, which can be made of elastic organic insulating materials such as foam, plastic, and rubber. This ensures electrical insulation while also providing a buffering effect, preventing rigid contact between the housing and the display module 000 even when the housing presses against the protective tape 004 or the buffer layer 006a, thus protecting the display module 000.

[0079] For example, such as Figure 4 As shown, the buffer layer 006a is attached to the side of the first inclined portion 004b1 that is away from the flexible circuit board 002.

[0080] In this embodiment of the application, considering the production process of the display module 000 and the display device, when the buffer layer 006a is located on the side of the first inclined portion 004b1 away from the flexible circuit board 002, the buffer layer 006a can be directly attached to the protective tape 004. In this way, the display module 000 with the attachment 006 can be directly assembled onto the housing, which is simpler in terms of process than attaching the attachment 006 to the housing.

[0081] Among some possible implementations, such as Figure 4 As shown, in the first direction X, the buffer layer 006a protrudes from the flexible circuit board 002 on the side facing the panel bending portion 001c.

[0082] In this embodiment, the end of the first inclined portion 004b1 facing away from the electronic component 003 extends to the second panel portion 001b. This means that a loosely adhered area 005 may exist between the protective tape 004 and the second panel portion 001b. The projected image of this target loosely adhered area 005a from the first panel portion 001a overlaps with the projected image of the second panel portion 001b from the first panel portion 001a. Therefore, by using the portion of the buffer layer 006a protruding from the flexible circuit board 002, the loosely adhered area 005 between the protective tape 004 and the second panel portion 001b can be pressed and eliminated during the assembly of the display module 000 and the housing, thus preventing the protective tape 004 from exhibiting rebound noise in this loosely adhered area 005.

[0083] For example, such as Figure 4 As shown, in the first direction X, the distance d1 between the buffer layer 006a and the electronic component 003 is greater than or equal to 0.5 mm; and / or, in the first direction X, the distance d2 between the buffer layer 006a and the edge of the first inclined portion 004b1 facing away from the electronic component 003 is greater than or equal to 0.5 mm.

[0084] In this embodiment, to ensure that the buffer layer 006a only acts on the portion of the protective tape 004 corresponding to the dotted area 005, the attachment position of the buffer layer 006a on the protective tape 004 can be adjusted according to the precision of the tape 004's application process. Thus, even when the buffer layer 006a is compressed by the housing, the compressive force will not act on the electronic component 003 or the second panel portion 001b.

[0085] For example, please refer to Figure 8 , Figure 8 This is a schematic diagram of another structure of a display module provided in another embodiment of this application. The buffer layer 006a is attached to the side of the first inclined portion 004b1 that is away from the flexible circuit board 002. The orthographic projection of the buffer layer 006a on the first panel portion 001a can be located within the orthographic projection of the flexible circuit board 002 on the first panel portion 001a.

[0086] In this embodiment, there may be no loosely attached area 005 between the protective tape 004 and the second panel portion 001b. In this case, the buffer layer 006a does not need to have a portion protruding from the flexible circuit board 002, which can prevent the flexible circuit board 002 or the second panel portion 001b from being squeezed by the housing.

[0087] Among some possible implementations, such as Figure 5 As shown, the buffer layer 006a is attached to the side of the first inclined portion 004b1 facing the flexible circuit board 002.

[0088] In this embodiment, the buffer layer 006a not only cushions the compression of the housing but also fills the target dummy bonding area 005a. This prevents the protective tape 004 from adhering to the flexible circuit board 002 in the area corresponding to the target dummy bonding area 005a. Furthermore, the buffer layer 006a ensures that the side of the first inclined portion 004b1 facing the flexible circuit board 002 is free of adhesive.

[0089] For example, the orthographic projection of the buffer layer 006a on the first panel portion 001a is located within the orthographic projection of the flexible circuit board 002 on the first panel portion 001a.

[0090] In this embodiment of the application, in order to prevent the buffer layer 006a from squeezing the flexible circuit board 002 or the second panel portion 001b, the buffer layer 006a will not protrude from the flexible circuit board 002.

[0091] For example, in the first direction X, the distance d3 between the buffer layer 006a and the electronic component 003 is greater than or equal to 0.5 mm; and / or, in the first direction X, the distance d4 between the buffer layer 006a and the edge of the flexible circuit board 002 toward the panel bending portion 001c is greater than or equal to 0.5 mm.

[0092] In this embodiment, to ensure that the buffer layer 006a only affects the portion of the protective tape 004 corresponding to the dotted area 005, the attachment position of the buffer layer 006a on the protective tape 004 can be adjusted according to the precision of the tape 004's application process. Thus, even when the buffer layer 006a is compressed by the housing, it will not affect the electronic component 003 or the second panel portion 001b.

[0093] For example, the thickness of the buffer layer 006a is greater than or equal to 0.2 mm.

[0094] To meet the requirements for thinner and lighter display devices, the distance between the display module 000 and the housing is small. For example, in the area corresponding to the target dummy bonding area 005a, the distance between the housing and the flexible circuit board 002 is less than or equal to 0.2 mm. In this embodiment, by providing a buffer layer 006a with a thickness greater than or equal to 0.2 mm, after the display module 000 and the housing are assembled, the housing can press the buffer layer 006a onto the flexible circuit board 002 using protective tape 004, or the protective tape 004 can be pressed onto the flexible circuit board 002 using the buffer layer 006a.

[0095] Among some possible implementations, such as Figure 6As shown, the attachment 006 is a filling part 006b that fills the space between the first inclined part 004b1 and the flexible circuit board 002. The filling part 006b is attached to the side of the first inclined part 004b1 facing the flexible circuit board 002, and the side of the filling part 006b away from the first inclined part 004b1 abuts against the flexible circuit board 002.

[0096] In this embodiment, a filling portion 006b that matches the inner shape of the target dummy area 005a can be used to fill the target dummy area 005a. In this way, the first inclined portion 004b1 adheres to the filling portion 006b and abuts against the flexible circuit board 002 through the filling portion 006b. Thus, the protective tape 004 cannot adhere to the flexible circuit board 002 in the area corresponding to the target dummy area 005a. Furthermore, the filling portion 006b is elastic, providing a cushioning effect and preventing the housing from rigidly abutting against the display module 000 in the area corresponding to the target dummy area 005a.

[0097] For example, the orthographic projection of the filling portion 006b on the first panel portion 001a is located within the orthographic projection of the flexible circuit board 002 on the first panel portion 001a.

[0098] In the first direction X, the distance d5 between the filling portion 006b and the electronic component 003 is greater than or equal to 0.5 mm; and / or, in the first direction X, the distance d6 between the filling portion 006b and the edge of the flexible circuit board 002 facing the panel bending portion 001c is greater than or equal to 0.5 mm.

[0099] In this embodiment, to prevent the filler portion 006b from compressing the flexible circuit board 002 or the second panel portion 001b, the filler portion 006b will not protrude from the flexible circuit board 002. To prevent the filler portion 006b from only acting on the loosely attached area 005, the attachment position of the filler portion 006b on the protective tape 004 can be adjusted according to the precision of the application process of the protective tape 004. In this way, even if the filler portion 006b is compressed by the housing, it will not act on the electronic component 003 or the second panel portion 001b. Furthermore, in the direction perpendicular to the first panel portion 001a, the height of the filler portion 006b is less than or equal to the height of the electronic component 003, for example, less than or equal to 0.9 mm.

[0100] The above describes the feasible method of using elastic materials for attaching accessory 006. The noise can be eliminated through buffering, filling, and glue-free methods. The following describes another feasible method for attaching accessory 006.

[0101] Among some possible implementations, such as Figure 7As shown, the surface of the attachment 006 away from the first inclined portion 004b1 has a non-adhesive area or a reduced-adhesion area, and the attachment 006 is attached to the side of the first inclined portion 004b1 facing the flexible circuit board 002.

[0102] In this way, the surface of the attachment 006 facing away from the first inclined portion 004b1 will not adhere to the flexible circuit board 002. For example, the attachment 006 can be a release film 006c.

[0103] In this embodiment, since the abnormal noise is caused by the adhesion and subsequent peeling between the protective tape 004 and the flexible circuit board 002, the display module 000 provided in this embodiment can eliminate the adhesive in the area of ​​the protective tape 004 where abnormal noise may occur. For example, in this embodiment, by attaching a release film 006c with a release surface to the side of the first inclined portion 004b1 facing the flexible circuit board 002, the side of the first inclined portion 004b1 facing the flexible circuit board 002 cannot adhere to the flexible circuit board 002, thus preventing the aforementioned abnormal noise problem.

[0104] Of course, the attachment 006 can also be attached to other positions of the surrounding protective part 004b facing the first panel part 001a.

[0105] For example, the thickness of the adhesive attachment 006 is less than the thickness of the protective tape 004.

[0106] For example, the attachment 006 can be a film made of organic insulating materials such as polyethylene terephthalate (PET). The thickness of the PET film can be 0.01 mm. Even if the thin attachment 006 is partially located between the device protection part 004a and the electronic component 003, or between the panel protection part 004c and the second panel part 001b, it will not be squeezed by the housing.

[0107] For example, in the inclined extension direction of the first inclined portion 004b1, the width of the attachment 006 is less than or equal to the width of the first inclined portion 004b1.

[0108] In order to ensure that the protective tape 004 fully adheres to and protects the electronic component 003 and the second panel 001b, the adhesive attachment 006 is configured not to be distributed between the component protection part 004a and the electronic component 003, nor between the panel protection part 004c and the second panel 001b.

[0109] The above describes a second possible method for eliminating abnormal noise by attaching accessory 006. It is evident that the various possible methods described above can be selectively combined to achieve better results. For example, a buffer layer 006a can be attached to a portion of the surrounding protective part 004b, a filler part 006b to another portion, and a release film 006c to yet another portion. Different implementation methods can be used for multiple non-attached areas 005 to eliminate abnormal noise. This application does not limit the specific implementation method; any technical solution that utilizes at least one of the aforementioned buffer layer 006a, filler part 006b, and accessory 006 is within the scope of protection of this application.

[0110] For some possible implementation methods, please refer to Figure 9 , Figure 9 The top view of the display module provided in the embodiment of this application shows that, in the second direction Y parallel to the bending axis of the panel bending portion 001c, the length of the attachment 006 is less than or equal to the length of the electronic component 003.

[0111] In this embodiment, to prevent the housing from being squeezed against the flexible circuit board 002 by the attachment 006 and to reduce the impact of the attachment 006 on the protective tape 004, the length of the attachment 006 in the second direction Y is less than or equal to the size of the electronic component 003. In some embodiments, the pressing head of the protective tape 004 has a clearance groove corresponding to the electronic component 003, and the protective tape 004 forms wrinkles at the corners of the electronic component 003. The dummy area 005 is mainly distributed on the side of the electronic component 003. In this case, the shorter attachment 006 will not exceed the dummy area 005 and will not affect the portion of the protective tape 004 other than the surrounding protective part 004b.

[0112] Among some possible implementations, such as Figures 4 to 7 As shown, in the first direction X, the first inclined portion 004b1 protrudes from the flexible circuit board 002 on the side facing the panel bending portion 001c, and the side of the first inclined portion 004b1 facing the panel bending portion 001c is in contact with the second panel portion 001b.

[0113] The portion of the surrounding protective part 004b that is distributed in the first direction X on the side of the electronic component 003 away from the panel bending part 001c is: the second inclined part 004b2.

[0114] The angle between the first inclined portion 004b1 and the second panel portion 001b is smaller than the angle between the second inclined portion 004b2 and the flexible circuit board 002.

[0115] In this embodiment, the electronic component 003 is close to the panel bending portion 001c, and there is also a loosely attached area 005 between the protective tape 004 and the second panel portion 001b. Therefore, the angle between the first inclined portion 004b1 and the second panel portion 001b is smaller than the angle between the second inclined portion 004b2 and the flexible circuit board 002. The first inclined portion 004b1 is more prone to the problem of abnormal rebound noise after pressing compared to the second inclined portion 004b2.

[0116] In summary, the display module provided in this application includes a display panel, a flexible circuit board, protective tape, and an attachment. Corresponding to the location of the dummy area, an attachment is provided on the side of the protective tape facing or away from the first panel, thereby eliminating the aforementioned noise problem. For example, when the attachment is located on the side of the protective tape away from the first panel, after the display module is connected to the housing, the attachment can be abutted by the housing. The housing uses the attachment to press the portion of the protective tape corresponding to the dummy area onto the flexible circuit board or the second panel, ensuring that this portion of the protective tape remains in a bonded state. Thus, even if movement occurs between the display module and the housing due to deformation caused by pressing when the user presses the display device, the protective tape will not loosen or spring back, and the display device will not experience the aforementioned noise problem. For example, when the attachment is located on the side of the protective tape facing the first panel, the attachment can fill the dummy area because it is present in the dummy area; and / or, it can remove the adhesive from the inside of the dummy area corresponding to the protective tape. In this way, when the user presses the display device, even if the display module and the housing move due to the pressing deformation, the protective tape cannot be attached to the flexible circuit board or the second panel, so there will be no problem of the protective tape rebounding and making noise.

[0117] This application embodiment also provides a display module 000, see reference Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. Figure 11 for Figure 10 The cross-sectional view of the display module shown at point AA indicates that the display module 000 may include: a display panel 001, a flexible circuit board 002, and a protective tape 004.

[0118] The display panel 001 may include: a first panel portion 001a and a second panel portion 001b disposed opposite to each other, and a panel bending portion 001c for connecting the first panel portion 001a and the second panel portion 001b; the display area of ​​the display panel 001 is located within the first panel portion 001a.

[0119] The flexible circuit board 002 is bonded to the second panel portion 001b, and the side of the flexible circuit board 002 facing away from the display panel 001 has electronic components 003; the flexible circuit board 002 and the second panel portion 001b are arranged along the first direction X.

[0120] Protective tape 004 is located on the side of the flexible circuit board 002 and the second panel 001b opposite to the first panel 001a, and the protective tape 004 covers the electronic components 003.

[0121] The protective tape 004 has a cut 004H, which is distributed at least on the side of the electronic component 003 facing the panel bend 001c in the first direction X.

[0122] In this embodiment, the cut 004H of the protective tape 004 allows for partial separation of the tape. This allows the portion corresponding to the target dummy bonding area 005a to be directly bonded to the flexible circuit board 002, eliminating the dummy bonding area 005a and thus preventing the aforementioned abnormal noise. The protective tape 004 at least covers the side of the electronic component 003 facing away from the first panel portion 001a, thereby shielding electromagnetic signals from this side and providing protection.

[0123] For example, please refer to Figure 12 , Figure 12 The diagram shows another structural feature of the display module provided in another embodiment of this application. The cutout 004H can be distributed around the electronic component 003, for example, it can also be distributed on both sides of the electronic component 003 in the second direction Y, that is, the cutout 004H is distributed around three sides of the electronic component 003; or it can be distributed on four sides.

[0124] Among some possible implementations, such as Figure 11 As shown, the portion of the protective tape 004 covering the electronic component 003 is: component protection part 0041, and the portion of the protective tape 004 distributed between the electronic component 003 and the panel bending part 001c is: first protection part 0042; there is a cut 004H between the component protection part 0041 and the first protection part 0042.

[0125] For example, the first protective part 0042 is attached to the flexible circuit board 002 on the side facing the first panel part 001a, and is also attached to the second panel part 001b.

[0126] In this embodiment, the protective tape 004, based on its attachment function, can be divided into: a device protection portion 0041 for protecting electronic components 003, and a planar protection portion for attaching to the flexible circuit board 002 and the second panel portion 001b. The planar protection portion may include: a first protection portion 0042 and a second protection portion 0043. The protective tape 004 may also have: a third protection portion 0044 for connecting the device protection portion 0041 and the second protection portion 0043, wherein the third protection portion 0044 is separately disposed from the flexible circuit board 002. Figure 11 The second protective part 0043 is located on the side of the electronic component 003 away from the panel bending part 001c and is attached to the flexible circuit board 002.

[0127] For example, in the first direction X, the device protection part 0041 protrudes from the side of the panel bending part 001c of the electronic component 003 by a width of less than or equal to 0.5 mm.

[0128] In this embodiment, to ensure that the device protection unit 0041 can completely cover the surface of the electronic component 003 facing away from the flexible circuit board 002, the relative position of the cut 004H and the electronic component 003 can be adjusted according to the accuracy of the application process of the protective tape 004. Even if there is an error in the application of the protective tape 004, the device protection unit 0041 can always cover the electronic component 003.

[0129] For example, such as Figure 10 and Figure 11 As shown, when the cuts 004H are distributed on the side of the electronic component 003 facing the panel bending portion 001c in the first direction X, the length of the cuts 004H in the second direction Y, parallel to the bending axis of the panel bending portion 001c, is greater than or equal to the length of the electronic component 003. In this way, the first protective portion 0042 can be smoothly attached to the surface of the flexible circuit board 002, ensuring that the protective tape 004 is smoothly attached to the flexible circuit board 002.

[0130] In summary, the display module provided in this application includes a display panel, a flexible circuit board, and protective tape. By providing cuts in the protective tape, partial separation of the tape is possible. This allows the portion corresponding to the target non-adhesive area to be directly bonded to the flexible circuit board, eliminating the non-adhesive area and thus preventing the aforementioned abnormal noise. The protective tape at least covers the side of the electronic components facing away from the first panel, thereby shielding electromagnetic signals from that side and providing protection.

[0131] This application also provides a display device, which may include: a housing and a display module connected to the housing, wherein the display module is the display module 000 described in any of the above embodiments.

[0132] The display device can be a screen in a display device such as a mobile phone, tablet computer, laptop computer, monitor, or smart TV. The display device can also have the technical effects of the display module 000 described above, which will not be repeated here.

[0133] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0134] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0135] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display module, characterized in that, include: Display panels, flexible circuit boards, protective tape, and adhesive accessories; The display panel includes: a first panel portion and a second panel portion disposed opposite to each other, and a panel bending portion for connecting the first panel portion and the second panel portion; The display area of ​​the display panel is located within the first panel portion; The flexible circuit board is bonded to the second panel, and the side of the flexible circuit board opposite to the display panel has electronic components. The protective tape is located on the side of the flexible circuit board and the second panel that is away from the first panel. The protective tape covers the electronic components and has a surrounding protective portion around the electronic components. The adhesive attachment is in direct contact with the protective tape, and the orthographic projection of the adhesive attachment on the first panel overlaps with the orthographic projection of the surrounding protective part on the first panel.

2. The display module according to claim 1, characterized in that, The orthographic projection of the attachment on the first panel is located within the orthographic projection of the surrounding protective part on the first panel.

3. The display module according to claim 2, characterized in that, The portion of the surrounding protective portion distributed in the first direction between the electronic components and the panel bending portion is: a first inclined portion; the first direction is a direction perpendicular to the bending axis of the panel bending portion and parallel to the direction of the first panel portion; Wherein, the orthographic projection of the attachment on the first panel portion is located within the orthographic projection of the first inclined portion on the first panel portion.

4. The display module according to claim 3, characterized in that, The adhesive attachment is an elastic buffer layer, and the thickness of the buffer layer is greater than the thickness of the protective tape.

5. The display module according to claim 4, characterized in that, The buffer layer is attached to the side of the first inclined portion that is away from the flexible circuit board.

6. The display module according to claim 5, characterized in that, In the first direction, the buffer layer protrudes from the flexible circuit board on the side facing the panel bend.

7. The display module according to claim 6, characterized in that, In the first direction, the distance between the buffer layer and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction, the distance between the buffer layer and the edge of the first inclined portion facing away from the electronic component is greater than or equal to 0.5 mm.

8. The display module according to claim 4, characterized in that, The buffer layer is attached to the side of the first inclined portion facing the flexible circuit board.

9. The display module according to claim 8, characterized in that, The orthographic projection of the buffer layer on the first panel portion lies within the orthographic projection of the flexible circuit board on the first panel portion.

10. The display module according to claim 9, characterized in that, In the first direction, the distance between the buffer layer and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction, the distance between the buffer layer and the edge of the flexible circuit board facing the panel bend is greater than or equal to 0.5 mm.

11. The display module according to any one of claims 4-10, characterized in that, The thickness of the buffer layer is greater than or equal to 0.2 mm.

12. The display module according to claim 3, characterized in that, The attachment is a filling portion that fills the space between the first inclined portion and the flexible circuit board. The filling portion is attached to the side of the first inclined portion facing the flexible circuit board, and the side of the filling portion away from the first inclined portion abuts against the flexible circuit board.

13. The display module according to claim 12, characterized in that, The orthographic projection of the filling portion on the first panel portion is located within the orthographic projection of the flexible circuit board on the first panel portion; In the first direction, the distance between the filling portion and the electronic component is greater than or equal to 0.5 mm; and / or, in the first direction, the distance between the filling portion and the edge of the flexible circuit board facing the panel bend is greater than or equal to 0.5 mm.

14. The display module according to claim 3, characterized in that, The surface of the attachment away from the first inclined portion has a non-adhesive area or a reduced-adhesion area, and the attachment is attached to the side of the first inclined portion facing the flexible circuit board.

15. The display module according to claim 14, characterized in that, The thickness of the attached accessory is less than the thickness of the protective tape.

16. The display module according to claim 15, characterized in that, In the inclined extension direction of the first inclined portion, the width of the attachment is less than or equal to the width of the first inclined portion.

17. The display module according to any one of claims 1-10 and 12-16, characterized in that, In a second direction parallel to the bending axis of the panel bend, the length of the attachment is less than or equal to the length of the electronic component.

18. The display module according to any one of claims 3-10 and 12-16, characterized in that, In the first direction, the first inclined portion protrudes from the flexible circuit board on the side facing the panel bending portion, and the side of the first inclined portion facing the panel bending portion contacts the second panel portion; The portion of the surrounding protective section that is distributed in the first direction on the electronic component away from the panel bend is: the second inclined section; Wherein, the angle between the first inclined portion and the second panel portion is smaller than the angle between the second inclined portion and the flexible circuit board.

19. The display module according to any one of claims 1-10 and 12-16, characterized in that, The portion of the protective tape covering the electronic component is a component protection portion. The protective tape also has a panel protection portion, which is connected to the component protection portion via the surrounding protection portion. The panel protection portion is distributed around the surrounding protection portion; a portion of the panel protection portion is attached to the flexible circuit board, and another portion is attached to the second panel portion.

20. A display module, characterized in that, include: Display panel, flexible circuit board, and protective tape; The display panel includes: a first panel portion and a second panel portion disposed opposite to each other, and a panel bending portion for connecting the first panel portion and the second panel portion; the display area of ​​the display panel is located within the first panel portion; The flexible circuit board is bonded to the second panel portion, and the side of the flexible circuit board opposite to the display panel has electronic components; the flexible circuit board and the second panel portion are arranged along a first direction; The protective tape is located on the side of the flexible circuit board and the second panel that is opposite to the first panel, and the protective tape covers the electronic components. The protective tape has slits, which are at least distributed on the side of the electronic component facing the panel bend in the first direction.

21. The display module according to claim 20, characterized in that, The portion of the protective tape covering the electronic component is a component protection portion, and the portion of the protective tape distributed between the electronic component and the panel bending portion is a first protection portion; the cut is provided between the component protection portion and the first protection portion.

22. The display module according to claim 21, characterized in that, The first protective portion is attached to the flexible circuit board on the side facing the first panel portion, and is also attached to the second panel portion.

23. The display module according to claim 21, characterized in that, In the first direction, the width of the device protection portion protruding from the side of the panel bend toward the electronic component is less than or equal to 0.5 mm.

24. The display module according to any one of claims 21-23, characterized in that, In a second direction parallel to the bending axis of the panel bend, the length of the cut is greater than or equal to the length of the electronic component.

25. A display device, characterized in that, It includes: a housing, and a display module connected to the housing, wherein the display module is the display module according to any one of claims 1-24.

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