Display device and method of manufacturing the same

Abstract

The application discloses a display device and a preparation method thereof. The display device comprises a middle frame and a display module. The middle frame comprises a middle plate part and a frame part connected with each other. The frame part surrounds the middle plate part. The frame part comprises a first side surface. The display module comprises a cover plate and a display screen. The cover plate is located on the display surface side of the display screen, and the display screen is located between the cover plate and the middle plate part. The side edge of the cover plate is connected with the first side surface, and there is a gap between the display screen and the frame part. The first side surface is the surface of the frame part facing the display screen. The size of the non-display area of the display device viewed from the display surface can be reduced by using the above technical scheme, which is beneficial to the narrow frame of the display device.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to a display device and its manufacturing method. Background Technology

[0002] With the development of display technology, the requirements for the performance and appearance of display devices are getting higher and higher, and the screen ratio of display devices has become one of the key factors in evaluating their performance and appearance.

[0003] In the display device, the display screen is fixed to the middle frame by a cover plate, which requires a step to be reserved on the middle frame for fixing the cover plate. The presence of this step increases the overall bezel size of the display device, which is not conducive to a narrow bezel and a high screen-to-body ratio. Summary of the Invention

[0004] This invention provides a display device and its manufacturing method to meet the requirements of narrow bezels and high screen-to-body ratio in display devices.

[0005] In a first aspect, embodiments of the present invention provide a display device, the display device comprising:

[0006] The middle frame includes a connected middle plate portion and a side frame portion; the side frame portion is disposed around the middle plate portion; the side frame portion includes a first side surface.

[0007] The display module includes a cover plate and a display screen; the cover plate is located on the display surface side of the display screen, and the display screen is located between the cover plate and the middle plate; the side of the cover plate is connected to the first side surface, and there is a gap between the display screen and the frame portion; wherein, the first side surface is the surface of the frame portion facing the display screen.

[0008] Secondly, embodiments of the present invention also provide a method for manufacturing a display device, the method comprising:

[0009] A mid-frame and a display module are provided; the mid-frame includes a connected mid-plate portion and a frame portion; the frame portion is disposed around the mid-plate portion; the frame portion includes a first side surface; the display module includes a cover plate and a display screen; the cover plate is located on the display surface side of the display screen;

[0010] The side of the cover plate is connected to the first side surface so that the display screen is housed within the receiving space formed by the middle frame and the cover plate; wherein, the first side surface is the side of the frame portion facing the display screen, and there is a gap between the display screen and the frame portion.

[0011] The technical solution of this invention connects the first side of the bezel portion to the side of the cover plate in the display module, with the first side of the bezel portion being the side closest to the display screen. This direct connection eliminates the need for a stepped structure in the middle frame, saving the bezel space previously occupied by the stepped structure. This reduces the bezel size of the display device, resulting in a narrower bezel and a higher screen-to-body ratio. Simultaneously, a gap is provided between the display screen and the bezel portion, ensuring a safe distance to prevent damage to the display screen from impacts or drops. This gap provides protection for the display screen and improves the overall lifespan of the display device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the film structure of a display device based on related technologies;

[0013] Figure 2 This is an exploded structural diagram of a display device provided in an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the film layer structure of a display device provided in an embodiment of the present invention;

[0015] Figure 4 This is a schematic diagram of the film layer structure of another display device provided in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the film layer structure of another display device provided in an embodiment of the present invention;

[0017] Figure 6 This is a schematic diagram of the upward-view structure of a display screen provided in an embodiment of the present invention;

[0018] Figure 7 This is a schematic diagram of another display screen structure from a bottom view provided in an embodiment of the present invention;

[0019] Figure 8 This is a schematic diagram of the upward-view structure of another display screen provided in an embodiment of the present invention;

[0020] Figure 9 This is a schematic diagram of the upward-view structure of another display screen provided in an embodiment of the present invention;

[0021] Figure 10 This is an embodiment of the present invention that provides a method along... Figure 9 A schematic diagram of the cross-sectional structure of the AA′ section of the central display screen;

[0022] Figure 11This is a schematic diagram of the upward-view structure of another display screen provided in an embodiment of the present invention;

[0023] Figure 12 This is an embodiment of the present invention that provides a method along... Figure 11 A schematic diagram of the cross-sectional structure of the BB′ section of the central display screen;

[0024] Figure 13 This is a schematic diagram of the upward-view structure of another display screen provided in an embodiment of the present invention;

[0025] Figure 14 This is an embodiment of the present invention that provides a method along... Figure 13 A schematic diagram of the cross-sectional structure of the CC′ section of the central display screen;

[0026] Figure 15 This is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present invention;

[0027] Figure 16 This is a schematic flowchart of a method for preparing a cover plate according to an embodiment of the present invention;

[0028] Figure 17 This is a schematic diagram of the manufacturing process of a cover plate provided in an embodiment of the present invention;

[0029] Figure 18 This is a schematic flowchart of another method for manufacturing a display device provided in an embodiment of the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be fully described below with reference to the accompanying drawings of the embodiments of this invention through specific implementation methods. Obviously, the described embodiments are only some, not all, embodiments of this invention. Various modifications and variations can be made to this invention without departing from the spirit or scope of this invention, which will be obvious to those skilled in the art. Therefore, this invention is intended to cover modifications and variations of this invention that fall within the scope of the corresponding claims (the claimed technical solutions) and their equivalents.

[0031] Furthermore, the terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "an," "one," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "including" or "comprising" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. In addition, descriptions of "same" or "equal" in the embodiments of this disclosure do not mean that two objects are completely equal in size or shape; they are allowed to be approximately the same or approximately equal within a certain error range.

[0032] It should be noted that the implementation methods provided in the embodiments of the present invention can be combined with each other without contradiction.

[0033] Figure 1 This is a structural diagram of a display device based on related technology, such as... Figure 1 As shown, the display device 001 includes a middle frame 01 and a display module 02. The middle frame 01 includes a frame portion 011 and a middle plate portion 012 connected to each other, with the frame portion 011 surrounding the middle plate portion 012. The display module 01 includes a cover plate 022 and a display screen 021. The display screen 021 can be connected to the frame portion 011 of the middle frame 01 through the cover plate 022. To ensure the connection between the cover plate 022 and the frame portion 011, a step structure 0111 is usually provided on the frame portion 011, so that two adjacent surfaces at the edge of the cover plate 022 can respectively overlap the step surface and the step sidewall of the step structure 0111, so that the step structure 0111 can provide a certain support and fixation for the cover plate 022.

[0034] However, when a stepped structure 0111 is provided on the bezel portion 011, a certain amount of extra space needs to be reserved on the bezel portion 011, so that the bezel portion 011 needs to have a certain width L', thereby increasing the size of the bezel portion 011. At the same time, since the bezel portion 011 does not overlap with the display screen 021 in the thickness direction Y, the position of the bezel portion 011 is the non-display area of ​​the display device 001, that is, the bezel area of ​​the display device 001. Therefore, when the size of the bezel portion 011 is large, the size of the non-display area of ​​the display device 001 is large, which is not conducive to the narrow bezel of the display device 001.

[0035] To address the aforementioned technical problems, embodiments of the present invention provide a display device comprising: a mid-frame and a display module; the mid-frame includes a connected mid-plate portion and a frame portion; the frame portion is disposed around the mid-plate portion; the frame portion includes a first side surface; the display module includes a cover plate and a display screen; the cover plate is located on the display surface side of the display screen, and the display screen is located between the cover plate and the mid-plate portion; the side edge of the cover plate is connected to the first side surface, and there is a gap between the display screen and the frame portion; wherein, the first side surface is the surface of the frame portion facing the display screen.

[0036] By adopting the above technical solution, the first side of the bezel is connected to the side of the cover plate, and this first side is the side of the bezel closest to the display screen. This direct connection eliminates the need for a stepped structure in the middle frame, saving the bezel space previously occupied by the stepped structure. This reduces the bezel size of the display device, resulting in a narrower bezel and a higher screen-to-body ratio. Simultaneously, the gap between the display screen and the bezel provides a safe distance, preventing damage to the display screen from impacts or drops. This protects the display screen and extends the overall lifespan of the display device.

[0037] The above is the core idea of ​​this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] Figure 2 This is an exploded structural diagram of a display device provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the film layer structure of a display device provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 2 and Figure 3 The display device 100 may include, but is not limited to, mobile phones, tablets, laptops, POS machines, personal digital assistants, wearable devices, virtual reality devices, augmented reality devices, etc.

[0039] The display device 100 may include a middle frame 1 and a display module 2. The middle frame 1 includes a middle plate portion 11 and a frame portion 12 connected together. The frame portion 12 is disposed around the middle plate portion 11. The frame portion 12 includes a first side surface 121. The display module 2 includes a cover plate 22 and a display screen 21. The cover plate 22 is located on the display surface side of the display screen 21, and the display screen 21 is located between the cover plate 22 and the middle plate portion 11. The side edge 223 of the cover plate 22 is connected to the first side surface 121, and there is a gap G between the display screen 21 and the frame portion 12. The first side surface 121 is the surface of the frame portion 12 facing the display screen 21.

[0040] The middle plate portion 11 of the middle frame 1 may include a front plate surface 111 facing the display module 2, a back plate surface 112 facing away from the display module 2, and a side plate surface (not shown in the figure) connecting the front plate surface 111 and the back plate surface 112; the frame portion 12 is connected to the middle plate portion 11 and is disposed around the middle plate portion 11. At this time, the frame portion 12 can be fixedly connected to the side plate surface of the middle plate portion 11, or the frame portion 12 can also be fixedly connected to the edge of the front plate surface 111 of the middle plate portion 11, and the frame portion 12 and the middle plate portion 11 can be an integral structure, or the frame portion 12 can also be The frame portion 12 and the middle plate portion 11 are two separate structures. The frame portion 12 and the middle plate portion 11 can be welded or fixedly connected by fasteners or other means. The frame portion 12 and the middle plate portion 11 can form a receiving space for the display module 2, so that the middle plate portion 11 can protect the side surface of the display module 2 near the middle plate portion 11, and the frame portion 12 can protect the side of the display module 2. The frame portion 12 includes a first side surface 121 facing the display module 2. The first side surface 121 can be a plane or a curved surface, which can be set according to actual needs. The embodiments of the present invention do not make specific limitations on this.

[0041] The cover plate 22 of the display module 2 may include a first surface 221 facing the display screen 21 and a second surface 222 facing away from the display screen 21. The first surface 221 and the second surface 222 are connected by the side edge 223 of the cover plate 22. The cover plate 22 is located on the display surface side of the display screen 21 and is attached to the display screen 21 by an optical adhesive layer 23 or the like to protect the display screen 21. The cover plate 22 may include a glass cover plate or a polyethylene terephthalate cover plate, and the embodiments of the present invention do not specifically limit this. In addition, at least one functional film layer may be provided on the cover plate 22, which may include, but is not limited to, at least one of explosion-proof film, anti-glare film, and anti-fingerprint film.

[0042] The display screen 21 of the display module 2 is used to display image information. The display screen 21 may include a display panel 211, which may be a flexible display panel or a rigid display panel. Taking a flexible display panel 211 as an example, the display panel 211 has the properties of being bendable and rollable. In this case, the non-display area of ​​the display panel 211 can be bent to the side away from the cover plate 22, so that the display panel 211 has a smaller bezel size, which is beneficial to the narrow bezel of the display device 100. In this case, the display panel 211 may include two flat areas and a bending area connecting the two flat areas. The display screen 21 may also include an upper support plate 213 and a lower support plate 214, which support the upper support plate 213 and the lower support plate 214 respectively. The display panel 211 has two flat areas; a protective layer 212 is provided on the side of the flat area of ​​the display panel 211 near the cover plate 22, and a bending protection structure 216 is provided on the side of the bending area of ​​the display panel 211 away from the upper support plate 213 and the lower support plate 214. The protective layer 212 and the bending protection structure 216 may respectively include the flat area and the bending area of ​​the display panel 211; at the same time, in order to make the bending area have a certain bending radius, at least one spacer layer 215 may be provided between the upper support plate 213 and the lower support plate 214. The display screen 21 may also include a flexible circuit board 217 bonded to the non-display area of ​​the display panel 211. The flexible circuit board 217 may be bent together with the non-display area of ​​the display panel 211 on the side of the display panel 211 away from the cover plate 22.

[0043] Understandably, after the cover plate is formed, a black border is set along its edges to cover the non-display area of ​​the screen, as well as the non-display area surrounding the screen. The larger the black border of the cover plate, the larger the size of the non-display area of ​​the display device as seen from the display surface, i.e., the larger the bezel size of the display device. For example... Figure 1 As shown, in the prior art, the black border on the cover plate 022 needs to cover the non-display area of ​​the display screen 021, the gap between the display screen 021 and the bezel 011, and the stepped structure 0111 on the bezel 011, resulting in a large black border on the cover plate 022, which is not conducive to the narrow bezel of the display device 001.

[0044] like Figure 3As shown, in this embodiment of the invention, the side 223 of the cover plate 22 is directly connected to the first side 121 of the frame portion 12. In this case, there is no need to provide a stepped structure on the frame portion 12 of the middle frame 1, and no extra space needs to be reserved for providing the stepped structure. This allows the frame portion 12 to have a smaller dimension L in the direction X parallel to the plane of the middle plate portion 11. The black border of the cover plate 22 only needs to cover the non-display area of ​​the display screen 21, the gap between the display screen 21 and the frame portion 12, and the frame portion 12 with a smaller dimension L. Compared to the prior art, the cover plate 22 can have a smaller black border, and the size of the non-display area viewed from the display surface side of the display device 100 is smaller, thereby allowing the display device 100 to have a smaller bezel size, which is beneficial for the narrow bezel of the display device 100. In an exemplary embodiment, compared to the connection method in the prior art, by directly connecting the side 223 of the cover plate 22 to the first side 121 of the frame portion 12, the bezel of the display device 100 can be reduced by at least 0.35mm.

[0045] It is understood that the connection method between the side 223 of the cover plate 22 and the first side 121 of the frame portion 12 can be designed according to actual needs, and the embodiments of the present invention do not specifically limit this. For example, the connection method between the side 223 of the cover plate 22 and the first side 121 of the frame portion 12 may include one of bonding, injection molding, welding, etc. In an optional embodiment, such as Figure 4 As shown, the side 223 of the cover plate 22 and the first side 121 of the frame portion 12 can be bonded together by an adhesive 201, which may include, but is not limited to, UV-curing adhesive.

[0046] Furthermore, a gap G exists between the display screen 21 and the bezel portion 12. This gap G ensures a safe distance between the bezel portion 12 and the display screen 21, preventing them from contacting each other and allowing for some deformation of the bezel portion 12. Thus, when the display device 100 experiences a collision, drop, or other event that causes deformation of the bezel portion 12 surrounding the display screen 21, the bezel portion 12 will not contact the display screen 21, preventing damage to the display screen 21 from impacts by the bezel portion 12. This provides some protection for the display screen 21 and helps extend the overall lifespan of the display device 100.

[0047] Based on the above embodiments, continue to refer to Figure 2 and Figure 3The display device 100 may further include a back cover 3 and a driver chip (not shown in the figure). A receiving space can be formed between the middle frame 1 and the back cover 3. This receiving space can be used to house control elements, functional modules, and other devices, such as circuit boards, batteries, camera modules, and speakers, so that the back cover 3 can protect these devices. A driver chip can be disposed between the middle frame 1 and the display module 2. This driver chip can control and drive the display module 2. The driver chip can be bonded to the flexible circuit board 217 of the pre-display module 2, so that the signal of the driver chip can be transmitted to the display panel 211 through the flexible circuit board 21, controlling the display panel 211 to display and emit light. The light emitted from the display panel 211 can pass through the cover plate 22 to reach the display surface of the display device 100, thereby enabling the display device 100 to display corresponding image information.

[0048] This embodiment connects the first side of the bezel to the side of the cover plate, with the first side of the bezel being the side closest to the display screen. This direct connection eliminates the need for a stepped structure in the middle frame, saving the bezel space previously occupied by a stepped structure. This reduces the bezel size of the display device, resulting in a narrower bezel and a higher screen-to-body ratio. Furthermore, the gap between the display screen and the bezel provides a safe distance, preventing damage to the display screen from impacts or drops, thus protecting the display screen and extending the overall lifespan of the display device.

[0049] Optional, Figure 5 This is a schematic diagram of the film layer structure of another display device provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the display module 2 also includes a protective tape 24; the display screen 21 and the middle plate 11 are bonded together by the protective tape 24.

[0050] The protective tape 24 may include double-sided tape, etc. The protective tape 24 may include a substrate layer and adhesive layers on opposite sides of the substrate layer, so that one adhesive layer of the protective tape 24 can be attached to the side of the display screen 21 away from the cover plate 22, and the other adhesive layer of the protective tape 24 can be attached to the front plate surface 111 of the middle plate 11, so that the display screen 21 and the middle plate 11 can be attached together by the protective tape 24. At this time, there are two connections between the display module 2 and the middle frame 1. One is that the side 223 of the cover plate 22 is connected to the first side 121 of the frame portion 12. The other is that the side surface of the display screen 21 facing away from the cover plate 22 is bonded to the front plate surface 111 of the middle plate portion 11 by a protective tape 24. In this way, the display module 2 and the middle frame 1 can have a large bonding area, preventing the middle frame 1 from falling off the display module 2. This can improve the bonding firmness between the display module 2 and the middle frame 1, which is beneficial to improving the overall service life of the display device 100.

[0051] Optional, Figure 6 This is a bottom-view structural diagram of a display screen provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 5 and Figure 6 The display screen 21 includes a display area 21A and a non-display area 21B surrounding the display area 21A; the protective tape 24 is located in the non-display area 21B and at least partially surrounds the display area 21A.

[0052] The display screen 21 includes pixels in its display area 21A for displaying light emission. By controlling the color and brightness of these pixels, the display screen 21 can display richly colored images. Furthermore, to enable image acquisition, fingerprint recognition, and infrared sensing functions, the display screen 21 also includes corresponding sensors. These sensors are located in the display area 21A on the side of the display screen 21 facing away from the display surface, thereby reducing the size of the non-display area 21B and increasing the screen-to-body ratio of the display screen 21.

[0053] The non-display area 21B of the display screen 21 may be equipped with corresponding control devices, such as drive control circuit and flexible circuit board 217. The flexible circuit board 217 can be bent to the side of the display screen 21 away from the display surface to reduce the size of the non-display area 21B of the display screen 21 as seen from the display surface.

[0054] Continue to refer to Figure 5 and Figure 6The protective tape 24 is disposed in the non-display area 21B of the display screen 21, that is, the protective tape 24 is attached to the surface of the non-display area 21B on the side of the display screen 21 away from the display surface, so that the attached protective tape 24 does not occupy the size of the display area 21A in the display screen 21, so that the display area 21A on the side of the display screen 21 away from the display surface can be used to set up sensors, etc., thus eliminating the need to reserve extra space in the non-display area 21B for setting up sensors, etc., which is beneficial to the high screen ratio of the display device 100 and the narrow bezel of the display device 100.

[0055] In addition, the protective tape 24 at least partially surrounds the display area 21A, i.e., as Figure 6 As shown, the protective tape 24 can be disposed around the display area 21A, making the protective tape 24 a ring structure. The protective tape 24 can have a large size, and there is a large bonding area between the middle plate 11 and the display screen 21, ensuring the firm bonding between the middle frame 1 and the display module 2; or, as Figure 7 As shown in Figure 8, the protective tape 24 can also partially surround the display area 21A, thereby reserving a portion of the non-display area 21B for the installation of other devices. In other optional embodiments, the protective tape can also simultaneously cover both the display area and the non-display area on the side of the display screen away from the display surface, thereby increasing the size of the protective tape and improving the adhesion between the mid-frame and the display module. Provided that the core inventive points of this invention are achieved, this embodiment does not specifically limit the manner in which the protective tape 24 is installed.

[0056] Based on the above embodiments, optionally, Figure 9 This is a schematic diagram of a downward-view structure of a display screen provided in another embodiment of the present invention. Figure 10 This is an embodiment of the present invention that provides a method along... Figure 9 A schematic diagram of the cross-sectional structure of section AA′ of the central display screen, in conjunction with reference. Figure 9 and Figure 10 When the display screen 21 includes a flexible circuit board 217, the flexible circuit board 217 may include a device placement area, and the device placement area of ​​the flexible circuit board 217 is located on the side of the display screen 21 away from the cover plate; at this time, the display screen 21 may also include a flexible shielding structure 218, and in the thickness direction Y of the display screen 21, the flexible shielding structure 218 covers at least part of the device placement area.

[0057] The flexible circuit board 217 contains devices such as chips 2171 within its device setting area. These devices process and transmit signals to enable the display screen 21 to display images and perform other functions. Therefore, if the devices 2171 in this area experience short circuits, open circuits, or corrosion, their accuracy in signal processing and transmission will be affected, thus impacting the display effect of the screen 21. By covering the device setting area of ​​the flexible circuit board 217 with a flexible shielding structure 218, the structure can shield external signals, preventing interference from external signals and ensuring accurate signal processing and transmission. The flexible shielding structure 218 also protects the devices 2171 from direct impacts or friction that could cause short circuits or open circuits, and prevents external moisture and oxygen from corroding the devices 2171 and accelerating their aging rate. In this way, by covering the device setting area with a flexible shielding structure, it is possible to ensure that the device 2171 in the device setting area can accurately process and transmit signals, thereby improving the service life of the device 2171 in the device setting area, thus ensuring the display effect of the display screen 21 and improving the service life of the display screen 21.

[0058] Meanwhile, the height of the devices 2171 in the device placement area varies, resulting in an uneven surface. In this case, by using a flexible shielding structure 218 that is bendable and deformable, the flexible shielding structure 218 can adapt to the surface structure of the device placement area and undergo corresponding deformation when it is attached to the surface of the device placement area. This is beneficial to the adhesion of the flexible shielding structure 218 and ensures that the flexible shielding structure 218 has a high shielding and protection effect.

[0059] In addition, when the device 2171 in the device setting area is working, it will generate a certain amount of heat due to its own impedance, etc. At this time, the flexible shielding structure 218 covering the device setting area can also have a certain heat dissipation effect, so that the heat generated by the device 2171 in the device setting area can be quickly dissipated, ensuring that the device 2171 in the device setting area can work stably.

[0060] In an exemplary embodiment, to facilitate the bonding of the flexible shielding structure 218, the flexible shielding structure 218 can be set as a shielding tape, that is, at least one side surface of the flexible shielding structure 218 is an adhesive surface, so that the flexible shielding structure 218 can be directly bonded to the device setting area through the adhesive surface without the need for additional adhesive layer, which is beneficial to simplifying the structure of the display screen 21 and making the display screen 21 thinner and lighter.

[0061] It is understood that in the embodiments of the present invention, the flexible shielding structure 218 covers at least a portion of the device mounting area, that is, the flexible shielding structure 218 can cover the entire device mounting area, or the flexible shielding structure 218 can cover a portion of the device mounting area. Provided that the core inventive points of the embodiments of the present invention can be achieved, the embodiments of the present invention do not impose specific limitations in this regard.

[0062] In an optional embodiment, Figure 11 This is a schematic diagram of a downward-view structure of a display screen provided in another embodiment of the present invention. Figure 12 This is an embodiment of the present invention that provides a method along... Figure 11 A schematic diagram of the cross-sectional structure of the BB′ section of the central display screen, in conjunction with reference. Figure 11 and Figure 12 In the thickness direction Y of the display screen 21, the flexible shielding structure 218 and the protective tape 24 do not overlap.

[0063] Because the flexible shielding structure 218 is bendable and deformable, its surface will have wrinkles when attached to the flexible circuit board 217, resulting in an uneven surface. Therefore, directly attaching the protective tape 24 to the surface of the flexible shielding structure 218 would affect its flatness. This embodiment prevents the flexible shielding structure 218 and the protective tape 24 from overlapping, ensuring that the tape 24 avoids the location of the flexible shielding structure 218 on the display screen 21. This guarantees a high degree of flatness for the tape 24, ensuring a strong bond between the tape 24 and the display screen 21, and thus improving the connection stability between the display module 2 and the middle frame 1.

[0064] Optional, Figure 13 This is a schematic diagram of a downward-view structure of a display screen provided in another embodiment of the present invention. Figure 14 This is an embodiment of the present invention that provides a method along... Figure 13 A schematic diagram of the cross-sectional structure of the CC′ section of the central display screen, in conjunction with reference. Figure 13 and Figure 14 The display screen 21 may also include a rigid shielding structure 219; the rigid shielding structure 219 has a higher hardness than the flexible shielding structure 218; the rigid shielding structure 219 and the flexible shielding structure 218 are connected to form a shielding body; the shielding body covers the device placement area; in the thickness direction Y of the display screen 21, the protective tape 24 overlaps with the rigid shielding structure 219.

[0065] Specifically, to ensure the flatness of the fit between the protective tape 24 and the display screen 21, it is necessary to reserve a bonding area for both the flexible shielding structure 218 and the protective tape 24 in the display screen 21, and the flexible shielding structure 218 and the protective tape 24 should not overlap in the thickness direction Y of the display screen 21. However, when the flexible circuit board bent on the side of the display screen 21 away from the display surface is its device placement area, the devices in the device placement area with the protective tape 24 attached will not be protected by the shielding structure because the flexible shielding structure 218 is not provided. In this case, by providing a rigid shielding structure 219 in the display screen 21, the rigid shielding structure 219 can be located in the bonding area of ​​the protective tape 24 and in other areas where the flexible shielding structure 218 cannot be attached, so that the rigid shielding structure 219 and the flexible shielding structure 218 together form a shield covering the device placement area, thereby ensuring that all devices in the device placement area can accurately process and transmit signals under the protection of the shield, and have a long service life.

[0066] Meanwhile, since the rigid shielding structure 219 has a higher hardness than the flexible shielding structure 218, it is less prone to deformation than the flexible shielding structure 218. Therefore, after the rigid shielding structure 219 is attached to the flexible circuit board 217, it can have a relatively flat surface. At this time, even if the protective tape 24 is attached to the surface of the rigid shielding structure 219, the protective tape 24 can still have a high degree of flatness.

[0067] It is understood that the materials used for the rigid shielding structure 219 and the flexible shielding structure 218 can be selected according to actual needs. Assuming that the hardness of the rigid shielding structure 219 is greater than that of the flexible shielding structure 218, this embodiment of the invention does not impose specific limitations on this.

[0068] In an optional embodiment, the rigid shielding structure 219 includes copper foil or aluminum foil, so that the rigid shielding structure 219 can have good shielding, protection and heat dissipation functions. Thus, while the device covered by the rigid shielding structure 219 is not affected by signal interference, water and oxygen corrosion and collision damage, the heat generated by the device during operation can be quickly dissipated to prevent the device from overheating and affecting the device's working state.

[0069] Optional, continue to refer to Figure 13 and Figure 14In the thickness direction Y of the display screen 21, the rigid shielding structure 219 and the flexible shielding structure 218 overlap. At this time, there is no gap between the rigid shielding structure 219 and the flexible shielding structure 218, so that the shielding body composed of the rigid shielding structure 219 and the flexible shielding structure 218 is a sealed structure. This allows the device enclosed by the shielding body to be protected from external signal interference, water and oxygen corrosion and impact damage from all directions, thereby helping to improve the service life of the device and improve the display effect of the display screen 21.

[0070] Based on the same inventive concept, embodiments of the present invention also provide a method for manufacturing a display device, which can be used to manufacture display devices according to any embodiment of the present invention. Figure 15 This is a schematic flowchart of a method for manufacturing a display device according to an embodiment of the present invention, as shown below. Figure 15 As shown, the method for manufacturing this display device includes:

[0071] S110 provides a mid-frame and display module.

[0072] Among them, such as Figure 3 As shown, the middle frame 1 includes a middle plate portion 11 and a frame portion 12 connected to each other; the frame portion 12 is disposed around the middle plate portion 11; the frame portion 12 includes a first side 121; the display module 2 includes a cover plate 22 and a display screen 21; the cover plate 22 is located on the display surface side of the display screen 21.

[0073] In one feasible embodiment, the middle frame 1 can be formed by forging or injection molding using a mold. The middle plate portion 11 and the frame portion 12 in the middle frame 1 can be integrally formed, or the middle plate portion 11 and the frame portion 12 can be formed separately and then fixedly connected by welding, gluing, or fasteners. The cover plate 22 and the display screen 21 of the display module 2 are two separate structures. After the display screen 21 and the cover plate 22 are formed, an optical adhesive can be coated on the display surface side of the cover plate 22 or the display screen 21. After the cover plate 22 is attached to the display surface side of the display screen 21 with the optical adhesive, the optical adhesive is cured by ultraviolet light or other curing processes to form an optical adhesive layer 23, so that the display screen 21 and the cover plate 22 can be tightly bonded through the optical adhesive layer 23.

[0074] S120. Connect the side of the cover plate to the first side so that the display screen is housed in the receiving space formed by the middle frame and the cover plate.

[0075] Among them, continue to refer to Figure 3 The first side 121 is the side of the frame portion 12 facing the display screen 21, and there is a gap G between the display screen 21 and the frame portion 12.

[0076] As a feasible embodiment, after the display screen 21 is attached to the cover plate 22, the cover plate 22 can protect the display surface of the display screen 21 from bumps and friction, thus ensuring a longer service life for the display screen 21. However, the back of the display screen 21 facing away from the display surface and the side connecting the back and the display panel lack corresponding protective structures, making the back and sides of the display screen 21 susceptible to bumps and friction. By connecting the side of the cover plate 22 to the first side 121 of the frame portion 12 in the middle frame 1, the frame portion 12 and the middle plate portion 11 of the middle frame 1, together with the cover plate 22, form a receiving space for the display screen 21. In this case, the frame portion 12 can protect the sides of the display screen 21, and the middle plate portion 11 can protect the back of the display screen 21, thereby comprehensively enveloping the display screen 21 and protecting it, thus improving its service life. The connection method between the cover plate 22 and the frame portion 12 can include, but is not limited to, bonding, injection molding, and welding.

[0077] In an alternative embodiment, such as Figure 4 As shown, the connection process between the cover plate 22 and the frame portion 12 may include: applying adhesive to the first side 121 of the frame portion 12 and / or the side 223 of the cover plate 22; contacting the side 223 of the cover plate 22 with the first side 121 of the frame portion 12 through the adhesive; and curing the adhesive by means of light or the like to form an adhesive 201 that bonds the side 223 of the cover plate 22 to the first side 121 of the frame portion 12.

[0078] This embodiment connects the side of the cover plate in the display module to the first side of the frame portion of the middle frame after providing the middle frame and display module. This creates a space for the display screen to be housed, providing some protection and extending its lifespan. Furthermore, directly connecting the side of the cover plate to the first side of the frame portion eliminates the need for a step structure in the frame portion, reducing the size of the frame and contributing to a narrower bezel in the display device.

[0079] It is understood that, since the display module includes a display screen and a cover plate, the display screen and the cover plate need to be fabricated separately before the display module is provided. The display screen and the cover plate are then bonded together using optical adhesive or similar materials to form the display module. The specific fabrication methods of the display screen and the cover plate can be designed according to actual needs, and this embodiment of the invention does not impose specific limitations on them.

[0080] Optional, Figure 16 This is a schematic flowchart of a method for preparing a cover plate according to an embodiment of the present invention, as shown below. Figure 16 As shown, the method for preparing the cover plate before providing the display module may specifically include:

[0081] S210, Initial plate for providing cover plate.

[0082] Among them, such as Figure 17 As shown, the initial plate 220 includes a retention portion 22A and a removal portion 22B that at least partially surrounds the retention portion 22A; the size of the removal portion 22B is greater than or equal to 0.35 mm.

[0083] Specifically, when the cover plate 22 is a glass cover plate, it can be formed by cutting the sheet glass into glass plates with the basic dimensions and shape of the initial plate, and then using a precision engraving machine to grind, bevele, and drill holes in the glass plates. Finally, after processes such as grinding and polishing, cleaning, hot bending, transfer printing, and coating, the initial plate 220 can be formed. This initial plate 220 is a glass cover plate that can be initially used, for example... Figure 1 In the prior art shown, the cover plate 022 of the display device 001 can be the initial plate 220. However, compared with the size of the cover plate in the display device of the present invention, the size of the initial plate 220 is larger, and the initial plate 220 needs to be further processed before it can be attached to the display screen.

[0084] S220. The initial plate is processed to remove the removal portion, forming a cover plate including the retention portion.

[0085] Among them, continue to refer to Figure 17 The initial plate 220 can be processed in ways including, but not limited to, using a precision engraving machine to grind and chamfer the initial plate 220, removing the removal portion 22B of the initial plate 220 and retaining only the retention portion 22A. In this case, the initial plate 220 including only the retention portion 22A is the cover plate 22. Thus, compared to cover plates in the prior art, the size of the cover plate 22 in this embodiment of the invention is reduced by at least 0.35mm, enabling the display device including this smaller cover plate 22 to have a smaller bezel size, thereby facilitating a narrow bezel design for the display device.

[0086] Optional, such as Figure 14 As shown, the display screen 21 may include a display panel 211 and a flexible circuit board 217 bonded to the display panel 211. The flexible circuit board 217 includes a device placement area, and the device placement area of ​​the flexible circuit board is located on the side of the display screen 21 away from the cover plate. At this time, the specific manufacturing method of the display screen 21 may include at least: providing a display panel 211 and a flexible circuit board 217, binding the flexible circuit board 217 to the non-display area of ​​the display panel 211, and bending the flexible circuit board 217 to the back side of the display panel 211 away from the display panel, so that after the display module is formed, the device placement area of ​​the flexible circuit board 217 can be located on the back side of the display panel 211 away from the display panel.

[0087] Furthermore, since the device placement area of ​​the flexible circuit board 217 typically houses corresponding devices 2171, these devices will be unable to accurately process and transmit signals when subjected to signal interference, water and oxygen corrosion, or collision damage. Therefore, a corresponding shielding structure is required to shield against external interference signals. In this case, before providing the display module, the method for manufacturing the display module may further include: providing a flexible shielding structure 218; attaching the flexible shielding structure 218 to the device placement area so that, in the thickness direction of the display screen 21, the flexible shielding structure 218 covers at least a portion of the device placement area.

[0088] Specifically, before attaching the flexible shielding structure 218 to the device placement area, a flexible shielding structure 218 of similar size to the device placement area can be cut according to the size of the device placement area, and then attached to the surface of the device placement area; alternatively, a flexible shielding structure 218 larger than the size of the device placement area can be attached to the surface of the device placement area first, and then the flexible shielding structure 218 exceeding the device placement area can be processed by cutting equipment or the like to achieve the required size and shape. Provided that the flexible shielding structure 218 can be attached to the device placement area and cover at least part of the device placement area, the embodiments of the present invention do not specifically limit the method of attaching the flexible shielding structure 218.

[0089] Optionally, since the flexible shielding structure covers at least part of the device placement area, meaning there may be device placement areas not covered by the flexible shielding structure, other shielding structures can be used to cover these device placement areas to provide shielding protection for the devices in those areas. In this case, such as... Figure 14 As shown, the method for preparing the display module may further include: providing a rigid shielding structure 219; attaching the rigid shielding structure 219 to the side of the flexible circuit board 217 away from the cover plate; wherein, after both the flexible shielding structure 218 and the rigid shielding structure 219 are attached to the device placement area, the rigid shielding structure 219 and the flexible shielding structure 218 are connected to form a shield, which encloses the device placement area.

[0090] It should be noted that the bonding order of the flexible shielding structure 218 and the rigid shielding structure 219 can be designed according to actual needs. This embodiment of the invention does not impose a specific limitation on this. In an optional embodiment, the rigid shielding structure 219 can be attached to the flexible circuit board 217 first, and then the flexible shielding structure 218 can be attached, so that the flexible shielding structure 218 can cover part of the rigid shielding structure 219. That is, after the attachment of the flexible shielding structure 218 and the rigid shielding structure 219 is completed, the flexible shielding structure 218 can overlap with the rigid shielding structure 219 in the thickness direction of the display screen 21, so that there is no gap between the rigid shielding structure 219 and the flexible shielding structure 218. This allows the shielding body composed of the rigid shielding structure 219 and the flexible shielding structure 218 to be a sealed structure, so that the device enclosed by the shielding body can be protected from external signal interference, water and oxygen corrosion and collision damage in all directions, thereby improving the service life of the device and improving the display effect of the display screen 21.

[0091] It is understandable that the rigid shielding structure 219 can include any material with a hardness greater than that of the flexible shielding structure 218, making the rigid shielding structure 219 less prone to deformation. The flexible shielding structure 218, on the other hand, has lower hardness and higher flexibility, allowing it to deform arbitrarily. Thus, after the rigid shielding structure 219 is attached, due to the thickness of the rigid shielding structure 219, there is a certain height difference between the area where the rigid shielding structure 219 is attached and the area where the rigid shielding structure is not attached. At this time, when attaching the flexible shielding structure 218, the flexible shielding structure 218 can be bent at the location where the height difference exists, thereby enabling the flexible shielding structure 218 to be tightly attached to both the rigid shielding structure 219 and the flexible circuit board 217, ensuring a high degree of bonding strength between the flexible shielding structure 218 and the rigid shielding structure 219 and the flexible circuit board 217.

[0092] Before attaching the rigid shielding structure 219 to the device placement area, a rigid shielding structure 219 of a size and shape appropriate to the area to be attached can be cut according to the size and shape of the area to be attached, and then attached to the surface of part of the device placement area; alternatively, a larger rigid shielding structure 219 can be attached to the flexible circuit board 217 first, and then the rigid shielding structure 219 exceeding the area to be attached can be processed by cutting equipment, etc., so that the rigid shielding area 219 only covers the area to be attached. Provided that the rigid shielding structure 219 can be attached to the device placement area and cover part of the device placement area, the embodiment of the present invention does not specifically limit the method of attaching the rigid shielding structure 219.

[0093] Based on the above embodiments, Figure 18This is a schematic flowchart of another method for manufacturing a display device provided in an embodiment of the present invention, as shown below. Figure 18 As shown, the method for manufacturing the display device provided in this embodiment includes:

[0094] The S310 offers a mid-frame and display module.

[0095] S320. A protective tape is installed on the side of the display screen away from the cover plate.

[0096] The protective tape may include double-sided tape, etc. Before applying the protective tape, a piece of tape of a size and shape appropriate to the area to be adhered to can be cut according to the size and shape of the area to be adhered to, and then the protective tape can be applied to the side of the display screen away from the cover plate. Alternatively, a larger piece of protective tape can be applied to the side of the display screen away from the cover plate first, and then any excess tape exceeding the required area can be processed using a cutting device to ensure that the protective tape meets the required size and shape. As long as the protective tape can be adhered to the display screen, this embodiment of the invention does not specifically limit the method of applying the protective tape.

[0097] S330. Attach the middle plate to the side of the display screen away from the cover plate using protective tape.

[0098] Specifically, after placing one side of the protective tape against the side of the display screen away from the cover plate, the other side of the protective tape can be attached to the middle plate, so that the middle plate and the display screen can be attached together by the protective tape, increasing the contact area between the middle frame and the display module and improving the adhesion between the middle frame and the display module.

[0099] In an optional embodiment, after a rigid shielding structure, a flexible shielding structure, and a protective tape are sequentially arranged on the side of the display screen away from the cover plate, the protective tape can overlap with the rigid shielding structure in the thickness direction of the display screen. In this case, while ensuring that the shielding structure composed of the rigid and flexible shielding structures covers the device mounting area of ​​the flexible circuit board, the protective tape can have a relatively flat bonding surface, thereby improving the bonding strength between the display screen and the middle plate.

[0100] S340. Connect the side of the cover plate to the first side so that the display screen is housed in the receiving space formed by the middle frame and the cover plate.

[0101] Since the method for preparing the display device provided in this embodiment of the invention can be used to prepare the display device of this embodiment of the invention, the method for preparing the display device provided in this embodiment of the invention includes the step of preparing any structure in the display device provided in this embodiment of the invention. Therefore, the method for preparing the display device provided in this embodiment of the invention also has the beneficial effects of the display device provided in this embodiment of the invention. The similarities can be understood by referring to the above explanation of the display device, and will not be repeated here.

[0102] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display device, characterized in that, include: The middle frame includes a connected middle plate and a side frame; The frame portion is disposed around the middle plate portion; the frame portion includes a first side surface; Display module, including cover plate and display screen; The cover plate is located on the display surface side of the display screen, and the display screen is located between the cover plate and the middle plate; the side of the cover plate is connected to the first side surface, and there is a gap between the display screen and the frame portion; wherein, the first side surface is the surface of the frame portion facing the display screen; The display module also includes protective tape; the display screen is bonded to the middle plate via the protective tape. The display screen includes a flexible circuit board; the flexible circuit board includes a device placement area; the device placement area of ​​the flexible circuit board is located on the side of the display screen away from the cover plate; the display screen also includes a flexible shielding structure; in the thickness direction of the display screen, the flexible shielding structure covers at least a portion of the device placement area; in the thickness direction of the display screen, the flexible shielding structure does not overlap with the protective tape; The display screen also includes a rigid shielding structure; the rigid shielding structure has a higher hardness than the flexible shielding structure; the rigid shielding structure and the flexible shielding structure are connected to form a shielding body; the shielding body covers the device mounting area; in the thickness direction of the display screen, the protective tape overlaps with the rigid shielding structure.

2. The display device according to claim 1, characterized in that, The display screen includes a display area and a non-display area surrounding the display area; the protective tape is located in the non-display area and at least partially surrounds the display area.

3. The display device according to claim 1, characterized in that, In the thickness direction of the display screen, the rigid shielding structure overlaps with the flexible shielding structure.

4. The display device according to claim 1, characterized in that, The rigid shielding structure includes copper foil or aluminum foil.

5. A method for manufacturing a display device, characterized in that, include: A mid-frame and a display module are provided; the mid-frame includes a connected mid-plate portion and a frame portion; the frame portion is disposed around the mid-plate portion; the frame portion includes a first side surface; the display module includes a cover plate and a display screen; the cover plate is located on the display surface side of the display screen; The side of the cover plate is connected to the first side surface so that the display screen is housed within the receiving space formed by the middle frame and the cover plate; wherein, the first side surface is the side of the frame portion facing the display screen, and there is a gap between the display screen and the frame portion; Before connecting the side of the cover plate to the first side, the method further includes: providing a protective tape on the side of the display screen away from the cover plate; and attaching the middle plate to the side of the display screen away from the cover plate via the protective tape. The display screen further includes a flexible circuit board; the flexible circuit board includes a device placement area; the device placement area of ​​the flexible circuit board is located on the side of the display screen away from the cover plate; before providing the display module, the display screen further includes: providing a flexible shielding structure; attaching the flexible shielding structure to the device placement area so that, in the thickness direction of the display screen, the flexible shielding structure covers at least a portion of the device placement area; Before providing the display module, the method further includes: providing a rigid shielding structure; attaching the rigid shielding structure to the side of the flexible circuit board away from the cover plate; wherein, after both the flexible shielding structure and the rigid shielding structure are attached to the device mounting area, the rigid shielding structure and the flexible shielding structure are connected to form a shielding body; the shielding body encloses the device mounting area; after a protective tape is provided on the side of the display screen away from the cover plate, the protective tape overlaps with the rigid shielding structure in the thickness direction of the display screen.

6. The method for manufacturing a display device according to claim 5, characterized in that, Before providing the display module, it also includes: An initial plate is provided for the cover plate; the initial plate includes a retention portion and a removal portion at least partially surrounding the retention portion; the size of the removal portion is greater than or equal to 0.35 mm; The initial plate is processed to remove the removal portion, forming the cover plate including the retention portion.

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