Display device and method of manufacturing the same

Abstract

The display device comprises a display module and a frame structure, the frame structure is integrally formed around the display module, the frame structure is a gel material, the frame structure comprises a frame body and a first protruding portion, the frame body forms a closed loop containing space, the display module is located in the containing space, and the first protruding portion is protrudingly arranged from the frame body towards one side of the containing space, and the first protruding portion overlaps with the edge of the display side of the display module. The frame structure integrally formed around the display module can protect the periphery of the display module and the interlayer interface, and the reliability of the display device is improved.

Description

Technical Field

[0001] This disclosure relates to the field of display device technology, and in particular to a display device and a method for manufacturing the same. Background Technology

[0002] Currently, flexible display devices are widely used in smart terminals and automotive displays. Flexible display devices are generally composed of stacked different film layers. However, a problem exists in related technologies: failure of flexible display devices can occur due to interlayer interface failure. Summary of the Invention

[0003] This disclosure provides a display device and a method for manufacturing the same, to solve or alleviate one or more technical problems in the prior art.

[0004] As a first aspect of the present disclosure, the present disclosure provides a display device, including:

[0005] Display module;

[0006] The frame structure is integrally molded and surrounds the display module. The frame structure is made of a plastic material and includes a frame body and a first protrusion. The frame body forms a closed-loop receiving space, and the display module is located in the receiving space. The first protrusion protrudes from the frame body toward the receiving space and overlaps with the edge of the display side of the display module.

[0007] In some possible implementations, the frame structure also includes a second protrusion, which protrudes from the frame body toward the receiving space. The first and second protrusions are spaced apart, and a limiting groove is formed between the first and second protrusions, with the edge of the display module engaging in the limiting groove.

[0008] In some possible implementations, the display module also includes an opening area with a protective frame.

[0009] In some possible implementations, the display module is a flexible display module, which also includes a bending section that bends to the non-display side of the display module. The bending section includes a wiring area, and the bezel structure also includes a protective section that fills the space between the bending section and the non-display side of the display module.

[0010] In some possible implementations, the frame structure is made of an elastic adhesive material.

[0011] In some possible implementations, the frame structure is made of a light-shielding adhesive material.

[0012] As a second aspect of this disclosure, this disclosure provides a method for manufacturing a display device, comprising:

[0013] Provide display modules;

[0014] A frame structure is formed, which is integrally molded and surrounds the display module. The frame structure is made of a plastic material and includes a frame body and a first protrusion. The frame body forms a closed-loop receiving space, and the display module is located in the receiving space. The first protrusion protrudes from the frame body toward the receiving space and overlaps with the edge of the display side of the display module.

[0015] In some possible implementations, a border structure is formed, including:

[0016] A first temporary protective film is attached to the display side surface of the display module, and the boundary of the first temporary protective film is located inside the boundary of the display module;

[0017] The display module is immersed in the adhesive, so that the edges and periphery of the display side surface of the display module are coated with adhesive;

[0018] The display module will be removed from the adhesive and the adhesive will be cured under preset conditions to form a frame structure;

[0019] Remove the first temporary protective film.

[0020] In some possible implementations, the bezel structure also includes a second protrusion, a second temporary protective film is attached to the surface of the display module away from the display side, and the boundary of the second temporary protective film is located inside the boundary of the display module; when the display module is immersed in adhesive, adhesive is applied to the edge of the display side surface, the edge of the surface away from the display side, and the periphery of the display module; the second temporary protective film is then removed.

[0021] In some possible implementations, the display module is immersed in glue, including:

[0022] The edges of the display module with the first temporary protective film and / or the second temporary protective film attached are sequentially immersed in the adhesive; or

[0023] The first and / or second temporary protective films of the display module will be completely immersed in the adhesive.

[0024] In some possible implementations, the side of the first temporary protective film facing away from the display module has a first solvent-repellent layer, which is removed when the first temporary protective film is removed; and / or, the side of the second temporary protective film facing away from the display module has a second solvent-repellent layer, which is removed when the second temporary protective film is removed.

[0025] In some possible implementations, the display module further includes a bending portion that bends to the non-display side of the display module. The bending portion includes a wiring area, and the frame structure also includes a protective portion. The orthographic projection of the second temporary protective film on the display module does not overlap with the orthographic projection of the bending portion on the display module. When the display module is immersed in adhesive, adhesive is filled between the bending portion and the non-display side of the display module.

[0026] In some possible implementations, the adhesive is one or more of polymethyl methacrylate or epoxy resin, and the preset conditions are heating at 60℃-85℃ or irradiation at 280nm-400nm.

[0027] In some possible implementations, the corners of the first temporary protective film and / or the second temporary protective film are rounded.

[0028] The technical solution of this disclosure embodiment can achieve the following beneficial effects: In this display device, an integrally formed frame structure is formed on the periphery of the display module. The frame structure can protect the periphery of the display module and the interlayer interface, thereby improving the reliability of the display device.

[0029] The above overview is for illustrative purposes only and is not intended to be limiting in any way. Further aspects, embodiments, and features of this disclosure will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0031] Figure 1 This is a plan view of a display device according to an embodiment of the present disclosure;

[0032] Figure 2 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0033] Figure 3 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0034] Figure 4 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure;

[0035] Figure 5a A cross-sectional schematic diagram of a display module with a first temporary protective film attached, according to an embodiment of this disclosure;

[0036] Figure 5bThis is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure;

[0037] Figure 5c This is a schematic diagram of the cured cross-section of the display module removed from the adhesive according to an embodiment of the present disclosure;

[0038] Figure 6a A cross-sectional schematic diagram showing the first and second temporary protective films attached to the display module according to an embodiment of this disclosure;

[0039] Figure 6b This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure;

[0040] Figure 6c This is a schematic diagram of the cured cross-section of the display module removed from the adhesive according to an embodiment of the present disclosure;

[0041] Figure 7a A cross-sectional schematic diagram of a display module with a temporary protective film and a solvent-repellent layer attached according to an embodiment of this disclosure;

[0042] Figure 7b This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure;

[0043] Figure 7c This is a schematic diagram of the cured cross-section of the display module removed from the adhesive according to an embodiment of the present disclosure;

[0044] Figure 8 This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure;

[0045] Figure 9a This is a plan view of the bent portion of the display module and the temporary protective film attached according to an embodiment of the present disclosure;

[0046] Figure 9b This is a schematic diagram of the glue filling at the bend of the display module according to an embodiment of the present disclosure;

[0047] Figure 10 This is an enlarged schematic diagram of the temporary protective film and the end corner of the display panel according to an embodiment of this disclosure. Attached image description:

[0049] 10. Display module; 20. Frame structure; 30. First temporary protective film; 40. Second temporary protective film; 10a. First surface; 10b. Second surface; 11. Opening area; 12. Bending part; 21. Frame body; 22. First protrusion; 23. Second protrusion; 24. Limiting slot; 25. Protective part; 31. First temporary protective sub-film; 32. Second temporary protective sub-film; 100. Container; 200. Adsorption device. Detailed Implementation

[0050] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0051] As consumers' demands for electronic products increase, flexible display devices have emerged to meet these needs. Currently, flexible display devices are typically composed of multiple stacked layers of different films. For example, a flexible display device includes a stacked substrate, display layers, touch layers, and other structures. The interfaces between these layers are weak points where failures are prone to occur, and most failures in flexible display devices originate from these interfaces.

[0052] In flexible display devices, pad bending technology is a common technique in flexible display modules. Pad bending technology bends the underlying bonding area to the back of the display panel to reduce the bezel. Since the bending area includes the wiring area, the wiring is susceptible to breakage from external impacts, leading to display defects. Related technologies typically apply adhesive to the bending area and cure it before bending to protect it. However, adhesive cannot cover the entire bending area, increasing the risk of wiring breakage and consequently causing display defects.

[0053] To address the problem of display device failure caused by the easy failure of interlayer interfaces in related technologies, this disclosure provides a display device. The technical solution of this disclosure is described in detail below through embodiments.

[0054] Figure 1 This is a plan view of the display device according to an embodiment of the present disclosure. Figure 2 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. Figure 2 It can be Figure 1 A schematic diagram of section AA. (Refer to...) Figure 1 and Figure 2 As shown, this disclosure provides a display device, which may include a display module 10 and a bezel structure 20. The bezel structure 20 is integrally formed and surrounds the periphery of the display module 10, and the bezel structure 20 is made of a plastic material. The bezel structure 20 includes a bezel body 21 and a first protrusion 22. The bezel body 21 forms a closed-loop receiving space S, and the display module 10 is located within the receiving space S. The first protrusion 22 protrudes from the bezel body 21 toward the receiving space S, and the first protrusion 22 overlaps with the edge of the display side of the display module 10.

[0055] For example, such as Figure 2As shown, the display module 10 includes a first surface 10a and a second surface 10b disposed opposite to each other. The first surface 10a is the display side of the display module, and the second surface 10b is the non-display side of the display module 10. The first surface 10a is... Figure 2 The upper surface of the display module, the second surface 10b is Figure 2 The lower end face of the display module. The first protrusion 22 overlaps with the edge of the first surface 10a of the display module 10.

[0056] For example, the bezel structure 20 is integrally formed and surrounds the display module 10, meaning that the shape of the bezel structure 20 is adapted to the shape of the display module 10. For instance, the display module 10 can be circular (the first and second surfaces of the display module 10 are circular), in which case the bezel structure 20 encloses a circular receiving space. The display module 10 can also be rectangular (the first and second surfaces of the display module 10 are rectangular), in which case the bezel structure 20 encloses a rectangular receiving space. It should be noted that the specific shape of the display module 10 is not limited here and can be set according to actual usage requirements, with the shape of the bezel structure 20 adapting to the display module 10.

[0057] In the display device of this embodiment, the frame body 21 of the frame structure 20 forms a closed-loop receiving space S. The display module 10 is located within the receiving space S. The frame body 21 surrounds and encloses the sidewall of the display module 10. A first protrusion 22 protrudes from the frame body 21 toward the receiving space S and overlaps with the edge of the display side of the display module 10. The first protrusion 22 can fix the frame structure 20 to the display module 10. With this arrangement, the first protrusion 22 can prevent light leakage from the display device, and the frame structure 20 can protect the periphery of the display module 10 and the interlayer interface, thus improving the reliability of the display device. Moreover, the frame structure 20 is integrally formed around the periphery of the display module 10, and the frame structure 20 is formed in one step, simplifying the manufacturing process.

[0058] In one embodiment, the first protrusion 22 overlaps with the edge of the display side of the display module 10. The first surface 10a of the display module 10 includes a display area and a border area located around the display area, and the first protrusion 22 is located within the border area. The border body 21 forms an accommodating space S for accommodating the display module 10, and the thickness of the border body 21 is adapted to the thickness of the display module 10. It should be noted that the size of the first protrusion 22 is not limited here, as long as the first protrusion 22 is located within the border area.

[0059] In one embodiment, the display module 10 can be an Organic Light Emitting Device (OLED) display module or a Liquid Crystal Display (LCD) display module. Exemplarily, the display module 10 is a flexible OLED display module. The flexible OLED display module includes a substrate and film layers formed on the substrate, such as a thin-film transistor layer, an anode, a light-emitting device layer, a cathode, and an encapsulation layer. The substrate can be a flexible substrate made of polyimide. The flexible OLED display module may also include a barrier layer and a buffer layer located between the substrate and the driving circuit layer. The thin-film transistor layer includes an active layer, a gate insulating layer, a gate, a dielectric layer, and source / drain metal layers. The light-emitting device layer is formed on the anode exposed by an opening in the pixel defining layer. The light-emitting device layer includes a light-emitting layer, with different light-emitting layers for different color sub-pixels; for example, a red sub-pixel includes a red light-emitting layer, a green sub-pixel includes a green light-emitting layer, and a blue sub-pixel includes a blue light-emitting layer. The encapsulation layer is located on the cathode; for example, the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer.

[0060] In one embodiment, the display device can be any product or component with display and touch functions, such as a smartphone, wearable smartwatch, smart glasses, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, in-vehicle display, e-book, biometric device such as smart skin device, soft robot, and biomedical device.

[0061] In one embodiment, a bezel structure 20 is integrally formed around the display module 10, and the bezel structure 20 is made of an adhesive material. Exemplarily, the bezel structure 20 can be formed in one step using an adhesive potting method, and the material of the bezel structure 20 can be one or more of polymethyl methacrylate (PMMA) and epoxy resin (EP). The bezel structure 20 can be formed by cross-linking and curing the adhesive under preset conditions (such as heating at 60–85°C or UV irradiation at 280–400 nm).

[0062] Figure 3 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. (Refer to...) Figure 3 As shown, in one embodiment, the frame structure 20 further includes a second protrusion 23, which protrudes from the frame body 21 toward the receiving space S. The first protrusion 22 and the second protrusion 23 are spaced apart, and a limiting groove 24 is formed between the first protrusion 22 and the second protrusion 23, and the edge of the display module 10 is engaged in the limiting groove 24.

[0063] For example, the first protrusion 22 and the second protrusion 23 are spaced apart. The first protrusion 22 overlaps with the edge of the first surface 10a of the display module 10, and the second protrusion 23 overlaps with the edge of the second surface 10b of the display module 10. The thickness of the limiting groove 24 formed between the first protrusion 22 and the second protrusion 23 is equal to the thickness of the display module 10. With this arrangement, since the frame structure 20 is integrally formed and surrounds the periphery of the display module 10, the frame structure 20 has a better fixing effect. The frame structure 20 can better protect the periphery and edges of the display module 10, further improving the reliability of the display device.

[0064] Reference Figure 1 As shown, in one embodiment, the display module 10 further includes an opening area 11, which is provided with a protective frame. Exemplarily, the opening area 11 can be used to accommodate components such as sensors or cameras. The protective frame on the opening area 11 of the display module 10 can protect the opening area 11, further preventing failure of the opening area 11 and improving the reliability of the display device.

[0065] Figure 4 This is a cross-sectional schematic diagram of a display device according to an embodiment of the present disclosure. (Refer to...) Figure 4 As shown, in one embodiment, the display module 10 is a flexible display module. The display module 10 also includes a bending portion 12, which bends to the non-display side of the display module 10, and the bending portion 12 includes a wiring area (not shown in the figure). The frame structure 20 also includes a protective portion 25, which fills the space between the bending portion 12 and the non-display side of the display module 10.

[0066] In related technologies, the bonding area of ​​the flexible display module is bent to the back of the display panel (non-display side) to achieve a narrower bottom bezel. The bent area includes the wiring area, which is susceptible to external impacts that can cause wire breakage and other display defects. Figure 4 The display device shown has a wiring area in the bent portion 12 for accommodating circuit wiring. The protective portion 25 of the frame structure 20 is filled between the bent portion 12 and the non-display side of the display module 10. This protective portion 25 effectively protects the bent portion 12, thus protecting the wiring area and mitigating the impact of external forces on the bent portion 12 during transportation and installation. This solves the problem of broken wiring in the wiring area of ​​the bent portion 12 leading to display defects, improving the reliability of the display device. Furthermore, the protective portion 25, the frame body 21, the first protrusion 22, and the second protrusion 23 are integrally molded, simplifying the manufacturing process. The frame structure 20 is directly molded onto the display module 10, eliminating the need for installation.

[0067] In one embodiment, the display module 10 is a flexible display module, and the frame structure 20 is made of an elastic adhesive material. This arrangement ensures that the frame structure 20 protects the perimeter of the display module 10 without affecting the folding effect of the flexible display module. For example, the elastic adhesive material can be rubber or thermoplastic polyurethane elastomer (TPU) and other elastomeric materials.

[0068] In one embodiment, the bezel structure 20 is made of a light-shielding adhesive material. Using a light-shielding adhesive material for the bezel structure 20 reduces reflection from the non-display area of ​​the display module 10, thereby improving the display effect of the display device. For example, the bezel structure 20 is made of black adhesive. It should be noted that the material of the bezel structure 20 is not limited here and can be set according to actual usage requirements.

[0069] Reference Figure 1 and Figure 2 As shown in the embodiments of this disclosure, a method for manufacturing a display device is also provided, comprising:

[0070] Provide display module 10;

[0071] A frame structure 20 is formed and integrally molded around the display module 10. The frame structure 20 is made of a plastic material. The frame structure 20 includes a frame body 21 and a first protrusion 22. The frame body 21 forms a closed-loop receiving space S, and the display module 10 is located within the receiving space S. The first protrusion 22 protrudes from the frame body 21 toward the receiving space S and overlaps with the edge of the display side of the display module 10.

[0072] The display device formed by the manufacturing method of the display device according to the embodiments of the present disclosure has the following characteristics: the first protrusion 22 can prevent light leakage of the display device, and the bezel structure 20 can protect the periphery of the display module 10 and the interlayer interface, thereby improving the reliability of the display device. Moreover, the bezel structure 20 is integrally formed around the periphery of the display module 10, and the bezel structure 20 is formed in one step, which simplifies the manufacturing process.

[0073] Figure 5a This is a schematic diagram showing the application of a first temporary protective film 30 to the display module according to an embodiment of the present disclosure. Figure 5b This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure. Figure 5c This is a schematic diagram of the display module being removed from the adhesive and cured according to an embodiment of the present disclosure. Figures 5a to 5b As shown, in one embodiment, a border structure 20 is formed, comprising:

[0074] A first temporary protective film 30 is attached to the display-side surface of the display module 10, and the boundary of the first temporary protective film 30 is located inside the boundary of the display module 10. For example, the first temporary protective film 30 is attached to the display-side surface of the display module 10, and the boundary of the first temporary protective film 30 is located inside the boundary of the display module 10. That is, the size of the first temporary protective film 30 is recessed relative to the display module 10 to form an ink adhesion area, and the recessed distance of the first temporary protective film 30 is the width of the frame structure 20.

[0075] The display module 10 is immersed in adhesive to coat the edges and periphery of its display-side surface. For example, immersing the display module 10 in adhesive to coat the edges and periphery of its display-side surface can be done by immersing the side plane of the display module 10 to which the first temporary protective film 30 is attached into the adhesive. Alternatively, when the display module 10 is rectangular, each edge of the display module 10 can be immersed in adhesive separately.

[0076] The display module 10 is removed from the adhesive and the adhesive is cured under preset conditions to form the frame structure 20.

[0077] Remove the first temporary protective film 30, which can be directly peeled off.

[0078] Reference Figure 5a As shown, exemplarily, the first temporary protective film 30 includes a first temporary protective sub-film 31 and a second temporary protective sub-film 32. The first temporary protective sub-film is attached to the first surface 10a of the display module 10, and the second temporary protective sub-film 32 is attached to the side of the first temporary protective sub-film 31 facing away from the display module 10. The size of the first temporary protective sub-film 31 is smaller than that of the display module 10, and the size of the second temporary protective sub-film 32 is larger than that of the first temporary protective sub-film 31. This arrangement creates a space between the first temporary protective sub-film 31, the second temporary protective sub-film 32, and the edge of the display module 10 for forming the first protrusion 22. It should be noted that the specific structure and size of the first temporary protective film 30 are not limited here and can be set according to actual usage requirements.

[0079] Reference Figure 5bAs shown, a display module 10 with a first temporary protective film 31 and a second temporary protective film 32 attached is immersed in a container 100 containing adhesive. The immersion depth of the display module 10 is equal to the sum of the thicknesses of the first temporary protective film 31 and the second temporary protective film 32, meaning that the first temporary protective film 31 and the second temporary protective film 32 are completely submerged in adhesive, thereby coating the edges and periphery of the display side surface of the display module 10 with adhesive. The adhesive is one or more of polymethyl methacrylate or epoxy resin, and the adhesive undergoes cross-linking and curing under preset conditions to obtain a defined shape. For example, the adhesive undergoes cross-linking and curing under heating at 60°C-85°C or under UV light irradiation at 280nm-400nm. The adhesive can also be black to reduce reflection in non-display areas. The non-display side surface of the display module with the first temporary protective film 31 and the second temporary protective film 32 attached is adsorbed by an adsorption device 200 or clamped by a clamping device. For example, after the display module 10 is adsorbed by the adsorption device 200, the adsorption device 200 controls the display module 10 to be immersed in the container 100, and the adsorption device 200 removes the display module 10 from the container 100. A scraper or other device is used to assist the glue to flow level and recover excess glue.

[0080] Reference Figure 5c As shown, the removed display module 10 is pre-cured to obtain a display module frame with a defined shape. Adhesive is also applied to the side of the second temporary protective film 32 facing away from the display module 10. The first temporary protective film 31 and the second temporary protective film 32 are then removed, and subsequent processes are used to form a frame as shown. Figure 2 The display device shown.

[0081] The method for manufacturing a display device according to this disclosure uses a potting method to form the frame structure of the display module. Compared to the existing ink printing method, this process is moved forward and can be performed in-factory, reducing the pressure on incoming material control. The display device manufactured using this method can protect the perimeter of the display module 10 and the interlayer interfaces, improving the reliability of the display module 10. Furthermore, the method for manufacturing a display device according to this disclosure consumes less glue, better meeting the requirements of the manufacturing process.

[0082] In one embodiment, the side of the first temporary protective film 30 facing away from the display module 10 has a first solvent-repellent layer 51, which is removed when the first temporary protective film 30 is removed. Exemplarily, the first solvent-repellent layer 51 is disposed on the side of the second temporary protective sub-film 32 facing away from the display module 10. The first solvent-repellent layer 51 is an organic solvent material, such as silicone oil. With this arrangement, when the display module 10 is immersed in adhesive, the side of the first solvent-repellent layer 51 facing away from the display module 10 is not covered by adhesive, thereby further reducing the amount of adhesive used.

[0083] In one embodiment, immersing the display module 10 in adhesive includes sequentially immersing the edges of the display module 10 with the first temporary protective film 30 attached into the adhesive. For example, when the display module 10 is rectangular, the four edges of the display module 10 with the first temporary protective film 30 attached can be sequentially immersed into a container of adhesive. This avoids adhesive buildup on the first temporary protective film 30, and the preparation method consumes less adhesive.

[0084] In one embodiment, immersing the display module 10 in adhesive includes completely immersing the first temporary protective film 30 of the display module 10 in the adhesive. For example, when the display module 10 is rectangular, one side with the first temporary protective film 30 attached can be completely immersed in the adhesive to a depth greater than or equal to the depth of the first temporary protective film 30. This way, a single immersion can form borders on all four edges of the display module 10, simplifying the process.

[0085] Figure 6a A cross-sectional schematic diagram showing the first and second temporary protective films attached to the display module according to an embodiment of this disclosure; Figure 6b This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure; Figure 6c This is a schematic diagram of the cured cross-section of the display module removed from the adhesive according to an embodiment of this disclosure. (Refer to...) Figures 6a to 6c As shown, in one embodiment, the border structure 20 further includes a second protrusion 23, forming the border structure 20, including:

[0086] A first temporary protective film 30 is attached to the display-side surface of the display module 10, and a second temporary protective film 40 is attached to the display-side surface of the display module 10. The boundary of the second temporary protective film 40 is located inside the boundary of the display module 10, and the boundary of the first temporary protective film 30 is also located inside the boundary of the display module 10. In other words, the dimensions of the first temporary protective film 30 and the second temporary protective film 40 are recessed relative to the display module 10, and the recessed distance between the first temporary protective film 30 and the second temporary protective film 40 is the width of the frame structure 20.

[0087] The display module 10 is immersed in adhesive, so that the edges of the display side surface, the edges opposite to the display side surface, and the periphery of the display module 10 are coated with adhesive. For example, immersing the display module 10 in adhesive, so that the edges of the display side surface, the edges opposite to the display side surface, and the periphery of the display module 10 are coated with adhesive, can involve immersing both the plane where the first temporary protective film 30 is attached and the plane where the second temporary protective film 30 is attached into the adhesive. Alternatively, when the display module 10 is rectangular, each edge of the display module 10 can be immersed in adhesive separately.

[0088] The display module 10 is removed from the adhesive and the adhesive is cured under preset conditions to form the frame structure 20.

[0089] Remove the first temporary protective film 30 and the second temporary protective film 40. The first temporary protective film 30 and the second temporary protective film 40 can be directly peeled off.

[0090] Reference Figure 6a As shown, exemplarily, a first temporary protective film 30 is attached to the first surface 10a of the display module 10, and a second temporary protective film 40 is attached to the second surface 10b of the display module 10. The dimensions of the first temporary protective film 30 and the second temporary protective film 40 are recessed relative to the display module 10, with the recessed distance being the width of the bezel structure. It should be noted that the size of the first temporary protective film 30 is not limited here and can be set according to actual usage requirements.

[0091] Reference Figure 6b As shown, a display module 10 with a first temporary protective film 30 and a second temporary protective film 40 attached is immersed in a container 100 containing adhesive. Both the first and second temporary protective films 30 and 40 are submerged in adhesive, thereby coating the display-side surface edge, the edge away from the display-side surface, and the periphery of the display module 10 with adhesive. The adhesive is one or more of polymethyl methacrylate or epoxy resin, and it undergoes cross-linking and curing under preset conditions to obtain a defined shape. For example, the adhesive undergoes cross-linking and curing under heating at 60°C-85°C or under UV light irradiation at 280nm-400nm. The adhesive can also be black to reduce reflection in non-display areas. One side of the first temporary protective film 30 or the second temporary protective film 40 is adsorbed by an adsorption device 200 or clamped by a clamping device. For example, after the display module 10 is adsorbed by the adsorption device 200, the adsorption device 200 controls the display module 10 to be immersed in the container 100, and the adsorption device 200 removes the display module 10 from the container. A scraper or other device is used to assist the glue to flow level and recover excess glue.

[0092] Reference Figure 6c As shown, the removed display module 10 is pre-cured to obtain a display module frame with a defined shape. Adhesive is also applied to the side of the second temporary protective film 32 facing away from the display module 10. The first temporary protective film 31 and the second temporary protective film 32 are then removed, and subsequent processes are used to form a frame as shown. Figure 3 The display device shown.

[0093] The method for manufacturing a display device according to the present disclosure forms the frame structure of the display module by potting glue. Compared with the existing ink printing method, the process is moved forward and can be carried out in the factory, reducing the pressure of incoming material control. The display device manufactured by this method can protect the periphery of the display module 10 and the interlayer interface, thereby improving the reliability of the display module 10.

[0094] Figures 5a to 5cThe method of manufacturing the display device shown is relative to Figures 6a to 6c The method for manufacturing the display device, Figures 5a to 5c The preparation method shown consumes less glue.

[0095] Figure 7a A cross-sectional schematic diagram of a display module with a temporary protective film and a solvent-repellent layer attached according to an embodiment of this disclosure; Figure 7b This is a schematic diagram of the display module being immersed in adhesive according to an embodiment of the present disclosure; Figure 7c This is a schematic diagram of the cured cross-section of the display module removed from the adhesive according to an embodiment of this disclosure. (Refer to...) Figures 7a to 7c As shown, the first temporary protective film 30 has a first solvent-repellent layer 51 on the side facing away from the display module 10, and the second temporary protective film 40 has a second solvent-repellent layer 52 on the side facing away from the display module 10. The first solvent-repellent layer 51 and the first temporary protective film 30 have the same size, and the second temporary protective film 40 and the second solvent-repellent layer 52 have the same size. Figure 7b As shown, the display module 10 is immersed in adhesive, so that the display side surface edge, the edge opposite to the display side surface edge, and the periphery of the display module 10 are coated with adhesive. Figure 7c As shown, the display module is removed from the adhesive and the adhesive is cured under preset conditions to form a frame structure 20. Since the first solvent-repellent layer 51 and the second solvent-repellent layer 52 can be separated from the adhesive, it is convenient to remove the first temporary protective film 30 and the second temporary protective film 40, and the amount of adhesive consumed can be further reduced.

[0096] For example, the first solvent-repellent layer 51 and the second solvent-repellent layer 52 are organic solvent materials, such as silicone oil.

[0097] Reference Figure 6b As shown, the first temporary protective film 30 and the second temporary protective film 40 of the display module 10 are completely immersed in the adhesive. Figure 8 This is a schematic diagram of the display module immersed in adhesive according to an embodiment of the present disclosure, with reference to... Figure 8 As shown, the edges of the display module 10, to which the first temporary protective film 30 and the second temporary protective film 40 are attached, are sequentially immersed in the adhesive. Figure 8 The preparation method shown will immerse each edge of the display module into a container filled with glue in sequence. Figure 8 The preparation method shown is relative to Figure 6b The method shown can reduce glue consumption. Figure 6b The preparation method shown is relative to Figure 8 The method shows that the module coating adhesive process is simpler.

[0098] Figure 9a This is a plan view of the bent portion of the display module and the temporary protective film attached according to an embodiment of the present disclosure. Figure 9bThis is a schematic diagram of the glue filling at the bent portion of the display module according to an embodiment of this disclosure. (Refer to...) Figure 9a and Figure 9b As shown, in one embodiment, the display module 10 further includes a bending portion 12, which bends to the non-display side of the display module 10. The bending portion 12 includes a wiring area. (Refer to...) Figure 4 As shown, the frame structure 20 also includes a protective portion 25. The orthographic projection of the second temporary protective film 40 on the display module 10 does not overlap with the orthographic projection of the bending portion 12 on the display module 10. When the display module 10 is immersed in glue, glue is filled between the bending portion 12 and the non-display side of the display module 10.

[0099] Reference Figure 3 As shown, the orthographic projection of the second temporary protective film 40 on the display module 10 does not overlap with the orthographic projection of the bent portion 12 on the display module 10. In other words, the position of the bent portion 12 can be completely filled and covered by glue, thereby protecting the bent portion from external impacts that could cause wire breakage or other display defects.

[0100] For example, the display module 10 is provided with a bend to accommodate circuit traces, and the second temporary protective film 40 has a greater inward amount relative to the boundary of the display module 10 on the side near the bend 12 than the inward amount of the other edges, so that the bend can be adequately potted and protected.

[0101] In one embodiment, the display module 10 also has an opening area 11 to accommodate components such as sensors and cameras. The first temporary protective film 30 and / or the second temporary protective film 40 can be provided with corresponding holes larger than the opening area to form a protective frame for the opening area 11.

[0102] Figure 10 This is an enlarged schematic diagram of the temporary protective film and the end corner of the display panel according to an embodiment of this disclosure. (Refer to...) Figure 10 As shown, in one embodiment, the corners of the first temporary protective film 30 and / or the second temporary protective film 40 are rounded. The preparation method of this disclosure, by rounding the corners of the first temporary protective film 30 and / or the second temporary protective film 40, can increase the coverage area of ​​the frame structure at the corner positions, thereby enhancing the protective effect at the corner positions.

[0103] For example, the display module 10 is rectangular, with rounded corners at all four ends to enhance the protection of the four corners.

[0104] Other configurations of the display device in the above embodiments can be derived from various technical solutions now and in the future known to those skilled in the art, and will not be described in detail here.

[0105] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0106] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "multiple" means two or more, unless otherwise explicitly specified.

[0107] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0108] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0109] The foregoing disclosure provides many different implementations or examples for carrying out different structures of this disclosure. To simplify this disclosure, the components and arrangements of specific examples are described above. Of course, these are merely examples and are not intended to limit this disclosure. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0110] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this disclosure, and these should all be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for manufacturing a display device, characterized in that, include: Provide display modules; A frame structure is formed, which is integrally molded and surrounds the periphery of the display module. The frame structure is made of a plastic material and includes a frame body and a first protrusion. The frame body forms a closed-loop receiving space, and the display module is located in the receiving space. The first protrusion is provided by the frame body protruding towards the receiving space and overlaps with the edge of the display side of the display module. The process of forming the border structure includes: A first temporary protective film is attached to the display side surface of the display module, and the boundary of the first temporary protective film is located inside the boundary of the display module; The display module is immersed in adhesive to coat the edges and periphery of the display side surface of the display module with adhesive; The display module is removed from the adhesive and the adhesive is cured under preset conditions to form the frame structure; Remove the first temporary protective film.

2. The preparation method according to claim 1, characterized in that, The frame structure also includes a second protrusion, and a second temporary protective film is attached to the surface of the display module away from the display side, the boundary of the second temporary protective film being located inside the boundary of the display module; when the display module is immersed in adhesive, adhesive is applied to the edge of the display side surface, the edge of the surface away from the display side, and the periphery of the display module; the second temporary protective film is then removed.

3. The preparation method according to claim 1 or 2, characterized in that, Immersing the display module in adhesive includes: The edges of the display module with the first temporary protective film and / or the second temporary protective film attached are sequentially immersed in the adhesive; or The first temporary protective film and / or the second temporary protective film of the display module are completely immersed in the adhesive.

4. The preparation method according to claim 1 or 2, characterized in that, The first temporary protective film has a first solvent-repellent layer on the side opposite to the display module, which is removed when the first temporary protective film is removed; and / or, the second temporary protective film has a second solvent-repellent layer on the side opposite to the display module, which is removed when the second temporary protective film is removed.

5. The preparation method according to claim 2, characterized in that, The display module further includes a bending portion that bends to the non-display side of the display module. The bending portion includes a wiring area. The frame structure also includes a protective portion. The orthographic projection of the second temporary protective film on the display module does not overlap with the orthographic projection of the bending portion on the display module. When the display module is immersed in adhesive, adhesive is filled between the bending portion and the non-display side of the display module.

6. The preparation method according to claim 1 or 2, characterized in that, The adhesive is one or more of polymethyl methacrylate or epoxy resin, and the preset conditions are heating at 60℃-85℃ or irradiation at 280nm-400nm.

7. The preparation method according to claim 1 or 2, characterized in that, The corners of the first temporary protective film and / or the second temporary protective film are rounded.

8. A display device, characterized in that, The display device is manufactured using the manufacturing method described in any one of claims 1 to 7, and comprises: Display module; A bezel structure is integrally formed and surrounds the display module. The bezel structure is made of a plastic material and includes a bezel body and a first protrusion. The bezel body forms a closed-loop receiving space, and the display module is located within the receiving space. The first protrusion protrudes from the bezel body toward the receiving space and overlaps with the edge of the display side of the display module.

9. The display device according to claim 8, characterized in that, The frame structure also includes a second protrusion, which protrudes from the frame body toward the receiving space. The first protrusion and the second protrusion are spaced apart, and a limiting groove is formed between the first protrusion and the second protrusion. The edge of the display module is engaged in the limiting groove.

10. The display device according to claim 8, characterized in that, The display module also includes an opening area, and the opening area is provided with a protective frame.

11. The display device according to claim 8, characterized in that, The display module is a flexible display module, and the display module further includes a bending portion that bends to the non-display side of the display module. The bending portion includes a wiring area, and the frame structure further includes a protective portion that fills the space between the bending portion and the non-display side of the display module.

12. The display device according to claim 11, characterized in that, The frame structure is made of an elastic adhesive material.

13. The display device according to any one of claims 8 to 12, characterized in that, The frame structure is made of a light-shielding adhesive material.

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