Display module and electronic equipment

Abstract

The utility model relates to a display module and electronic equipment. The display module comprises: a display panel having a bending area; the protective glue covers the outer surface of the bending area and is used for reinforcing the bending area; the optical structure is located on the display surface of the display panel, and a buffer surface is formed on the optical structure; the buffer surface is used for preventing the protective glue from climbing towards the optical structure. According to the embodiment of the invention, the display module can be better prevented from being broken at the position where the protective glue generates stress, and the stability of the display module is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of displays, and more particularly to a display module and an electronic device. Background Art

[0002] With the development of display technology, people's pursuit of the screen-to-body ratio of electronic devices is getting higher and higher. Usually, a part of the display panel of an Organic Light Emitting Display (OLED) is folded to the back of the display panel, so as to further reduce the lower border of the screen and improve the overall screen-to-body ratio of the electronic device.

[0003] Currently, the bent part of the lower-edge screen body in such an electronic device is a weak position of the screen body. At this time, an Ultraviolet Rays (UV) photosensitive glue is coated on the bent part to neutralize the stress on both sides of the screen body of the bent part and protect the screen body of the bent part.

[0004] However, due to the fluidity and capillary action of the UV glue, during the process of coating the UV glue on the bent part of the screen body, the UV glue will climb along the edge of the component adjacent to the screen body, so that stress concentration points will appear at the positions where the UV glue climbs after curing. When the whole machine is tested subsequently and the user drops or squeezes the mobile phone, etc., the screen body at the position where the stress concentration point is located is likely to break, resulting in problems such as black screen or colored screen. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, the present disclosure provides a display module and an electronic device, which can better avoid the breakage of the display module at the position where stress is generated in the protective glue and improve the stability of the display module.

[0006] According to the first aspect of the embodiments of the present disclosure, a display module is provided, and the display module at least includes:

[0007] A display panel having a bent area;

[0008] A protective glue covering the surface of the bent area for strengthening the bent area;

[0009] An optical structure located on the display surface of the display panel and having a buffer surface; the buffer surface is used to prevent the protective glue from climbing towards the optical structure.

[0010] In an embodiment, the optical structure includes a first surface in contact with the display surface of the display panel;

[0011] The buffer surface is adjacent to the first surface and is on the same side of the protective glue as the optical structure.

[0012] In one embodiment, the buffer surface is an inclined surface, and the inclined surface inclines away from the display panel.

[0013] In one embodiment, there is an included angle between the inclined surface and a preset direction, the preset direction is perpendicular to the display surface of the display panel, and the angle range of the included angle is from 30 degrees to 60 degrees.

[0014] In one embodiment, the optical structure includes:

[0015] An optical adhesive layer covering the display surface of the display panel;

[0016] A polarizing layer located between the optical adhesive layer and the display panel;

[0017] Wherein, the buffer surface is the side surface of the polarizing layer facing the protective adhesive.

[0018] In one embodiment, the display module further includes:

[0019] A cover plate disposed on the display surface of the display panel and covering the display panel;

[0020] The optical adhesive layer is located between the cover plate and the polarizing layer.

[0021] In one embodiment, the display module further includes:

[0022] A support block located on the back of the display surface of the display panel;

[0023] A first substrate and a second substrate are respectively disposed on opposite sides of the support block and are both located between the display panel and the support block;

[0024] A heat dissipation layer located between the support block and the first substrate for dissipating heat from the display panel through the first substrate;

[0025] The bending area partially surrounds the first substrate, the heat dissipation layer, the support block and the second substrate.

[0026] In one embodiment, the display module further includes:

[0027] A flexible connector connecting the display panel;

[0028] A control chip is spaced apart from the protective adhesive on the same side of the display panel and is connected to the flexible connector for transmitting a display signal to the display panel through the flexible connector;

[0029] The protective adhesive is located between the control chip and the optical structure.

[0030] In one embodiment, the protective glue includes photosensitive glue.

[0031] According to a second aspect of the embodiments of the present disclosure, an electronic device is provided, which at least includes:

[0032] A middle frame;

[0033] A display module as described in the first aspect, mounted on the middle frame.

[0034] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

[0035] Embodiments of the present disclosure provide a display module and an electronic device. The display module includes: a display panel having a bending area; a protective glue covering the surface of the bending area for strengthening the bending area; an optical structure located on the display surface of the display panel and having a buffer surface; the buffer surface is used to prevent the protective glue from climbing towards the optical structure. In this way, a buffer surface can be formed on the optical structure provided on the display surface of the display panel, so as to prevent the protective glue from climbing towards the optical structure due to capillary action through this buffer surface. Thus, when the display module experiences phenomena such as dropping or squeezing, the stress generated by the protective glue climbing to the optical structure can be reduced, better avoiding the display module from breaking at the position where the protective glue generates stress, and improving the stability of the display module; at the same time, the embodiments of the present disclosure can reduce the defect rate of problems such as black screen or color screen caused by the display module breaking, and improve the display effect of the display module.

[0036] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0037] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0038] Figure 1 It is a schematic structural diagram of a display module shown according to an exemplary embodiment Figure 1 .

[0039] Figures 2a to 2d It is a schematic structural diagram of a traditional electronic device shown according to an exemplary embodiment.

[0040] Figure 3 It is a second schematic structural diagram of a display module shown according to an exemplary embodiment.

[0041] Figure 4 It is a schematic structural diagram of a display module shown according to an exemplary embodimentFigure 3 。

[0042] Figures 5a to 5c It is a comparative schematic diagram of a display module shown according to an exemplary embodiment and a display module in a traditional electronic device.

[0043] Figure 6 It is a structural block diagram of an electronic device shown according to an exemplary embodiment.

[0044] Reference numerals:

[0045] 10 - Display module, 11 - Display panel, 111 - Bending area, 12 - Optical structure, 112 - Display surface, 121 - Buffer surface, 13 - Protective glue, 122 - Optical glue layer, 123 - Polarizer layer, 14 - Cover plate, 15 - Support block, 161 - First substrate, 162 - Second substrate, 17 - Heat dissipation layer, 18 - Flexible connector, 19 - Control chip, 20 - Traditional electronic device, 21 - Bending part, 22 - UV glue, 23 - Polarizer, 24 - Polarizer protective film. Detailed implementation manners

[0046] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are only examples of structures consistent with some aspects of the present disclosure as detailed in the appended claims.

[0047] In the description of the present disclosure, 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", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present disclosure.

[0048] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0049] The following will describe in detail the technical solutions provided by each embodiment of the present disclosure with reference to the accompanying drawings.

[0050] Figure 1 is a schematic structural diagram of a display module shown according to an exemplary embodiment Figure 1 , such as Figure 1 As shown, the display module 10 may include:

[0051] A display panel 11 having a bending area 111;

[0052] A protective glue 13 covering the surface of the bending area 111 for strengthening the bending area 111;

[0053] An optical structure 12 located on the display surface 112 of the display panel 11 and having a buffer surface 121; the buffer surface 121 is used to prevent the protective glue 13 from climbing towards the optical structure 12.

[0054] In the embodiments of the present disclosure, the above display module can be applied to an electronic device with a display function for displaying a picture through a display panel in the display module, etc.; the display module can be an OLED display screen or a liquid crystal display (LCD) screen, and there is no limitation thereto.

[0055] Here, the display screen can generally be divided into four layers. The outermost layer is a glass cover plate for protection; the second layer is an adhesive layer, for example, an optically clear adhesive (OCA), which can isolate the glass cover plate from the lower structure and play a buffering role; the third layer is a touch screen; the fourth layer is a display layer, that is, the above display panel, for example, a self-emitting flexible OLED panel.

[0056] It can be understood that taking the display module as an OLED display screen as an example, the display panel can be used to drive pixels to emit light to realize picture display. In other examples, if the display module is a liquid crystal display screen, the display panel can also be a liquid crystal layer. At this time, a backlight layer can also be provided in the display module, and the backlight layer is provided between the liquid crystal layer and the substrate of the display module.

[0057] In the embodiments of the present disclosure, the display panel has a bending region; there is no pixel design at the position of the bending region of the display panel, and no image display will be performed. That is to say, the display panel may include a display area and a non-display area located on one side of the display area. In this embodiment, the display surface of the display panel may be the display area of the display panel; and in the non-display area, the display panel is bent to its back, that is, the non-display area of the display panel includes the bending region of the display panel.

[0058] The above-mentioned protective glue may be a glue that can reinforce the bending region; for example, photosensitive glue (UV glue) or epoxy resin glue, etc.

[0059] In some embodiments, the above-mentioned protective glue may include photosensitive glue. Among them, photosensitive glue, also known as ultraviolet curable glue, is a type of adhesive that must be cured by ultraviolet light irradiation and can be used as an adhesive, so as to better reinforce the bending region of the display panel.

[0060] It should be noted that the above-mentioned optical structure may include a polarizing layer and an optical glue layer, or the above-mentioned optical structure may also include a light filtering layer and an optical glue layer, which are not limited in the embodiments of the present disclosure.

[0061] Here, the polarizing layer may be disposed on the display surface of the display panel and cover the display surface of the display panel to control the polarization direction of the light emitted from the display panel. Among them, taking the display panel as an OLED panel as an example, the polarizing layer may be set as a polarizer (POL). The molecular structure inside the polarizer shows an ordered arrangement. This arrangement enables only the light whose vibration direction is the same as the molecular arrangement direction to pass through when the external natural light irradiates the OLED panel, while the light in other directions is blocked or absorbed; in this way, the polarizer can use its polarization characteristics to block the light in these other directions and effectively improve the display effect of the display module.

[0062] The optical glue layer may be a transparent glue layer and has double-sided adhesiveness; for example, the optical glue layer may include OCA. Among them, the optical glue layer has high adhesion and can be used to fix the position of the display panel in the display module and improve the structural stability of the display module; in addition, the optical glue layer also has characteristics such as high clarity, strong light transmittance, and anti-ultraviolet. By setting the optical glue layer on the display surface of the display panel, the display effect of the display panel can be improved.

[0063] In some embodiments, a polarizing layer may not be provided in the display module, and a light filtering layer may be provided instead, such as a pol-less display module. Among them, a packaging structure for the display panel is provided on the part of the display panel in the pol-less display module facing the optical adhesive layer, and the packaging structure is used to package optical devices in the display panel, such as the light filtering layer. The light filtering layer may include a color filter (CF), which is provided in the packaging structure and is used to filter light, allow light of a specific wavelength to pass through, and block light of other wavelengths, thereby generating red, green, and blue primary colors of light; these primary colors of light are then combined to finally present rich colors.

[0064] In the embodiments of the present disclosure, a buffer surface may be formed on the optical structure, and the buffer surface can prevent the protective adhesive from climbing up the optical structure due to the influence of capillary action. Among them, the buffer surface may include, but is not limited to: an inclined surface inclined in the direction close to the display panel, an inclined surface inclined in the direction away from the display panel, or a curved surface, etc.

[0065] Here, the buffer surface may be formed on the polarizing layer of the optical structure or on the optical adhesive layer of the optical structure, and the embodiments of the present disclosure do not make any restrictions.

[0066] It can be understood that when the protective adhesive is coated on the surface of the bending area of the display panel, due to the influence of capillary action, the protective adhesive will climb along the side surface of the optical structure; at this time, the buffer surface of the optical structure can increase the climbing distance of the protective adhesive on the optical structure and reduce the climbing height of the protective adhesive on the optical structure.

[0067] In some embodiments, as Figure 1 shown, the optical structure 12 includes a first surface (not shown in Figure 1 ) that is in contact with the display surface 112 of the display panel 11;

[0068] a buffer surface 121, which is disposed adjacent to the first surface and is on the same side of the optical structure 12 as the protective adhesive 13.

[0069] In this way, by disposing the buffer surface adjacent to the first surface of the optical structure and the buffer surface and the protective adhesive on the same side of the optical structure, the buffer surface can better prevent the protective adhesive from climbing up the optical structure, effectively improving the stability of the display module.

[0070] In the embodiments of the present disclosure, the first surface of the optical structure may be the surface in contact with the display surface of the display panel; the buffer surface of the optical structure may be the surface disposed adjacent to the first surface and on the same side of the optical structure as the protective adhesive.

[0071] Here, the buffer surface adjacent to the first surface of the optical structure can be an inclined surface inclined in any direction or a curved surface of any shape, as long as it can prevent the protective glue from climbing onto the optical structure. The embodiments of the present disclosure do not limit this.

[0072] In some embodiments, the polarizing layer of the optical structure covers the display surface of the display panel. A buffer surface is formed on the side of the polarizing layer facing the protective glue, and this buffer surface can be an inclined surface. The angle between this inclined surface and the display surface of the display panel can be an acute angle, that is, an angle between 0 degrees and 90 degrees; correspondingly, the angle between this inclined surface and the direction perpendicular to the display panel can also be an acute angle. It should be noted that this inclined surface can be inclined towards the display panel or away from the display panel. The embodiments of the present disclosure do not limit this.

[0073] Here, in the embodiments of the present disclosure, by forming a buffer surface on the optical structure, it can effectively prevent the protective glue from climbing onto the optical structure due to the influence of capillary action. When the buffer surface is an inclined surface, the slope of the protective glue climbing towards the side of the optical structure becomes gentler; at this time, the protective glue can still climb to the buffer surface due to capillary action, but when the electronic device such as a mobile phone drops, is squeezed, etc., the stress at the connection position between the protective glue and the buffer surface will decrease, which can better avoid the fracture at the connection position between the display module and the buffer surface, and reduce the defect rate of problems such as black screen or color screen caused by the fracture of the display module.

[0074] In the related art, as Figure 2a shown, applying UV glue 22 to the bent part 21 of the lower edge screen body of the traditional electronic device 20 can play a role in neutralizing the stress on both sides of the screen body of this bent part and protecting the screen body of this bent part. Figure 2a shows the ideal state of applying UV glue to the bent part of the screen body, that is, the coverage range of the UV glue 22 starts from the edge of the polarizer (POL) 23 and overlaps with the POL until it covers the end of this bent part 21.

[0075] However, as Figure 2b shown, due to the fluidity and capillary action of the UV glue 22, during the process of applying the UV glue 22 to the bent part 21 of the screen body, the UV glue 22 will climb up along the edge of the polarizer 23 until it climbs to the same height as the polarizer protective film 24; after the polarizer protective film 24 is torn off in the post-process, there will be a phenomenon that the climbing height of the UV glue 22 is higher than the thickness of the polarizer 23, resulting in stress concentration points P appearing at the position where the UV glue 22 climbs. As Figure 2cAs shown, it shows the actual state of applying UV glue to the bent part of the screen body, and a stress concentration point P appears at the connection position between the UV glue 22 and the polarizer 23. When the subsequent whole machine test and the user drops or squeezes the mobile phone, etc., it will cause the screen body at the position of the stress concentration point to be easily broken, resulting in problems such as black screen or colored screen. And when the design of the electronic device has a narrow border, that is, the OCA overlap amount is small, this protruding stress concentration point is likely to cause OCA defects, affecting the display yield of the electronic device.

[0076] In addition, as Figure 2d shown, after the screen body coated with the UV glue 22 is bent, due to the influence of the rebound stress, it is easy to have the phenomenon that the edge of the UV glue 22 is disconnected from the polarizer 23 after the environmental test; water vapor is likely to accumulate at the disconnected position, causing problems such as corrosion.

[0077] Based on this, the embodiments of the present disclosure provide a display module, which includes: a display panel having a bent area; a protective glue covering the surface of the bent area for strengthening the bent area; an optical structure located on the display surface of the display panel and formed with a buffer surface; the buffer surface is used to prevent the protective glue from climbing towards the optical structure. In this way, a buffer surface can be formed on the optical structure provided on the display surface of the display panel, so as to prevent the protective glue from climbing towards the optical structure due to capillary action through this buffer surface, so that when the display module experiences phenomena such as dropping or squeezing, the stress generated by the protective glue climbing to the optical structure can be reduced, better avoiding the breakage of the display module at the position where the protective glue generates stress, and improving the stability of the display module; at the same time, the embodiments of the present disclosure can reduce the defect rate of the display module caused by breakage resulting in problems such as black screen or colored screen, and improve the display effect of the display module.

[0078] In some embodiments, as Figure 3 shown, the buffer surface 121 is an inclined surface, and the inclined surface is inclined away from the display panel 11.

[0079] In this way, by setting the buffer surface of the optical structure as an inclined surface, the slope of the edge position of the optical structure close to the bent area can be made gentler, so as to increase the climbing distance of the protective glue on the optical structure due to capillary action and reduce the climbing height of the protective glue on the optical structure; at the same time, by setting the inclined surface to be inclined away from the display panel, the possibility of the protective glue separating from the optical structure can be better reduced, and the stability of the display module can be improved.

[0080] In the embodiments of the present disclosure, the buffer surface of the optical structure is set as an inclined surface, which can increase the climbing distance of the protective glue on the optical structure and reduce the climbing height of the protective glue on the optical structure; at the same time, the inclined surface is set to incline away from the display panel, so that when the protective glue climbs to the inclined surface due to capillary action, the connection between the protective glue and the inclined surface and the bending part is more firm, thereby reducing the possibility of the protective glue separating from the optical structure.

[0081] Here, when the inclined surface inclines away from the display panel, the angle range of the angle between the inclined surface and the display surface of the display panel can be from 0 degree to 90 degrees, making the slope of the buffer surface position of the optical structure gentler; when electronic devices such as mobile phones drop, are squeezed, etc., the stress generated by the protective glue climbing to the inclined surface is further reduced, which can further prevent the display module from breaking at the position where the protective glue generates stress, and reduce the defect rate of problems such as black screen or color screen caused by the breakage of the display module.

[0082] In some embodiments, as Figure 3 shown, there is an angle A between the inclined surface and a preset direction F, the preset direction F is perpendicular to the display surface 112 of the display panel 11, and the angle range of the angle A is from 30 degrees to 60 degrees.

[0083] In this way, by setting the angle between the inclined surface of the optical structure and the preset direction perpendicular to the display panel to be from 30 degrees to 60 degrees, the optical structure located on the display panel will not affect the display effect of the display panel, so that while ensuring the display effect of the display module, it is better to increase the climbing distance of the protective glue on the optical structure and reduce the climbing height, so as to improve the stability of the display module.

[0084] In the embodiments of the present disclosure, the preset direction can be the direction perpendicular to the display surface of the display panel.

[0085] Here, the angle range of the angle between the inclined surface and the preset direction can be from 30 degrees to 60 degrees, then the angle range of the angle between the inclined surface and the display surface of the display panel can also be from 30 degrees to 60 degrees.

[0086] It can be understood that setting the angle between the inclined surface and the preset direction within the range of 30 degrees to 60 degrees can increase the climbing distance of the protective glue on the optical structure and reduce the climbing height of the protective glue on the optical structure, while not affecting the improvement effect of the optical structure itself on the display effect of the display panel, so as to better ensure the display yield of the display module.

[0087] It should be noted that when the inclined surface is inclined towards the display panel, the angular range of the angle between the inclined surface and the preset direction can be from 30 degrees to 60 degrees; when the inclined surface is inclined away from the display panel, the angular range of the angle between the inclined surface and the preset direction can also be from 30 degrees to 60 degrees.

[0088] In some embodiments, as Figure 4 shown, the above optical structure 12 includes:

[0089] An optical adhesive layer 122 covering the display surface 112 of the display panel 11;

[0090] A polarizing layer 123 located between the optical adhesive layer 122 and the display panel 11;

[0091] Among them, the buffer surface 121 is the side surface of the polarizing layer 123 facing the protective adhesive 13.

[0092] In this way, by setting the side surface of the polarizing layer facing the protective adhesive as the buffer surface, it is possible to better increase the climbing distance and reduce the climbing height of the protective adhesive on the polarizing layer in the structure of the display module, and avoid the breakage at the connection position between the protective adhesive and the buffer surface of the polarizing layer of the display module, so as to improve the stability of the display module.

[0093] In the embodiments of the present disclosure, since the optical adhesive layer is in a liquid state, it is difficult to cut the buffer surface on the optical adhesive layer during the preparation process. Therefore, the side surface of the polarizing layer facing the protective adhesive is set as the buffer surface to better increase the climbing distance and reduce the climbing height of the protective adhesive on the optical structure in the structure of the display module.

[0094] It should be noted that the buffer surface of the polarizing layer can be an inclined surface inclined away from the display panel, or it can also be a curved surface, etc., which is not limited in the embodiments of the present disclosure.

[0095] Here, the optical adhesive layer may include OCA. OCA is an adhesive for bonding transparent optical elements, which has the characteristics of colorless transparency, high light transmittance, high adhesion, high weather resistance, water resistance, high temperature resistance, anti-ultraviolet, etc., and can reduce the loss of light emitted by the display panel, increase the brightness and transmittance of the display panel, and improve the display effect of the display panel.

[0096] The polarizing layer may include a polarizing film, and the polarizing film may be composed of a polyvinyl alcohol (PVA) film and a pressure-sensitive adhesive. Among them, the PVA film is the part that filters non-polarized light into polarized light and propagates it in one direction, which determines the polarization performance and transmittance of the polarizing film, and is also the part that affects the color tone and optical durability of the polarizing film; the pressure-sensitive adhesive can be divided into an adhesive on the reflective film side and an adhesive on the release film side.

[0097] It can be understood that by providing a polarizing layer between the optical adhesive layer and the display panel, light in a specific direction in the external natural light irradiated onto the display panel can be allowed to pass through, while light in other directions is blocked; at the same time, the optical adhesive layer is used to reduce the loss of light emitted by the display panel, so as to improve the display effect of the display module.

[0098] It should be noted that the specific type of the polarizer can be set according to the actual application scenario, and the embodiments of the present disclosure do not make any limitations. For example, the polarizer can include types such as linear polarizers, circular polarizers, and elliptical polarizers.

[0099] In some embodiments, during the preparation process, those skilled in the art can also adopt the method of die casting to make the side surface of the optical adhesive layer facing the protective adhesive also a buffer surface; at this time, the buffer surfaces of the optical adhesive layer and the polarizing layer are located on the same plane, so as to better increase the climbing distance of the protective adhesive on the optical structure and improve the stability of the display module.

[0100] In some embodiments, as Figure 4 shown, the above-mentioned display module 10 further includes:

[0101] A cover plate 14, disposed on the display surface 112 of the display panel 11 and covering the display panel 11;

[0102] An optical adhesive layer 122, located between the cover plate 14 and the polarizing layer 123.

[0103] In this way, by disposing the optical adhesive layer between the cover plate and the polarizing layer, it is prepared for setting the side surface of the polarizing layer facing the protective adhesive as a buffer surface later without affecting the display effect of the display panel, so as to better improve the stability of the display module.

[0104] In the embodiments of the present disclosure, the cover plate can cover the display surface of the display panel and is the glass cover plate (Cover Glass, CG) on the outer layer of the display module, which can be used to protect the internal devices of the display module, reduce the impact or scratches suffered during the use of the display module, and improve the use safety and stability of the display module.

[0105] Here, the CG cover plate can be made of tempered glass and ink; the ink includes main ink, bottom covering ink, character ink, etc. In addition, when the electronic device to which the display module is applied is a mobile phone or a tablet computer, the CG cover plate often has an anti-fingerprint film plated on its surface, and the anti-fingerprint film is used to improve the smoothness and compliance of touch and prevent scratches.

[0106] In some embodiments, as Figure 4 shown, the above-mentioned display module 10 further includes:

[0107] A support block 15, located on the back of the display surface 112 of the display panel 11;

[0108] A first substrate 161 and a second substrate 162 are respectively disposed on opposite sides of the support block 15, and both are located between the display panel 11 and the support block 15;

[0109] A heat dissipation layer 17 is located between the support block 15 and the first substrate 161, and is used to dissipate heat from the display panel 11 through the first substrate 161;

[0110] A bending area 111 partially surrounds the first substrate 161, the heat dissipation layer 17, the support block 15, and the second substrate 162.

[0111] In this way, by disposing the support block, the first substrate, and the second substrate in the bending area of the display panel, the devices and circuits in the display module can be better supported and protected, enhancing the stability of the display module; at the same time, a heat dissipation layer can be disposed between the support block and the first substrate to better dissipate heat from the display panel through the first substrate, avoiding damage to the display module caused by high temperature, extending the service life of the display module, and improving the display effect of the display module.

[0112] In the embodiments of the present disclosure, the support block can be a component for supporting the display panel; wherein, the support strength of the support block can be greater than a preset strength, so that the support block can better support the display panel.

[0113] It should be noted that the specific material of the support block can be set according to the actual application situation, and the embodiments of the present disclosure do not make any limitations. For example, the material of the support block can be stainless steel (Steel Use Stainless, SUS), titanium alloy, aluminum alloy, magnesium alloy, amorphous alloy, etc.

[0114] In some embodiments, the support block can be formed of a metal material, conductive plastic, or conductive rubber, etc., to perform partial static charge isolation on the display panel, that is, the static charge formed on the display panel can be conducted, thereby reducing the accumulation of static charge on the display panel and preventing the electrical properties of the display panel from changing due to static charge.

[0115] In addition, the specific shape of the support block can also be set according to the actual application situation, and the embodiments of the present disclosure do not make any limitations. For example, the shape of the support block can be obtained by injection molding, laser cutting, or laser ablation, etc.

[0116] In the embodiments of the present disclosure, the first substrate can be a component close to the display surface of the display panel, and the second substrate can be a component close to the back of the display panel after bending; both the first substrate and the second substrate can be a back plate (Back Plate, BP). The above display panel can be attached to the support block through the BP at the back of the display surface and at the position where it is bent to its back.

[0117] Here, when the display panel is not bent to its back, that is, when the bending area and the display surface of the display panel are in the same plane, the first substrate and the second substrate can be in the same plane and are both located on the same side of the display panel.

[0118] It should be noted that the specific sizes of the first substrate and the second substrate can be set according to actual application situations, and the embodiments of the present disclosure do not make any limitations. For example, the size of the first substrate can be the same as that of the second substrate; or, the size of the first substrate can also be different from that of the second substrate.

[0119] In the embodiments of the present disclosure, the heat dissipation layer can be a screen cooling film (SCF) in the display module; wherein, the SCF can include an adhesive layer, a foam layer, and a copper foil layer (Cu).

[0120] Here, the adhesive layer in the SCF, such as a grid adhesive, adheres to the display panel; the foam layer is arranged between the adhesive layer and the copper foil layer and is used for buffering and shock absorption; the copper foil layer can be used for supporting and dissipating heat from the display panel.

[0121] It can be understood that the copper foil layer has excellent electrical conductivity and flexibility. The excellent electrical conductivity of the copper foil layer can ensure the fast and reliable transmission of electrical signals in the display panel, while the flexibility of the copper foil layer enables the heat dissipation layer to better adapt to the complex design and layout of the display module.

[0122] In some embodiments, as Figure 4 shown, the above-mentioned display module 10 further includes:

[0123] A flexible connector 18, connecting the display panel 11;

[0124] A control chip 19, which is arranged on the same side of the display panel 11 at an interval from the protective glue 13 and is connected to the flexible connector 18, and is used for transmitting a display signal to the display panel 11 through the flexible connector 18;

[0125] The protective glue 13, located between the control chip 19 and the optical structure 12.

[0126] In this way, by arranging a control chip connected to the flexible connector on one side of the display panel and making the control chip and the protective glue arranged on the same side of the display panel at an interval, the layout of each device in the display module can be arranged more reasonably, and the occupied space of the display module in the electronic device can be reduced.

[0127] In the embodiments of the present disclosure, the flexible connector is a component that can be bent and can transmit a display signal to the display panel; for example, the flexible connector can be a flexible printed circuit (FPC) or a bendable wire harness formed by arranging multiple wires in parallel, etc.

[0128] The above control chip can generate display signals to drive the pixels in the display panel; these display signals can include voltage and current signals for controlling pixel switches, as well as signals for adjusting pixel brightness and color.

[0129] Here, the display panel can include three parts. The first part is the display area of the display panel, the second part is the bending area, and the third part is the area bent to its back, so as to further reduce the lower border of the screen of the electronic device where the display module is located, improve the overall screen-to-body ratio of the electronic device, and achieve the narrow bezel design of the electronic device.

[0130] It can be understood that the flexible connector can connect the third part of the display panel; the control chip can be arranged at the third part of the display panel, spaced apart from the protective glue on the same side of the display panel, and connected to the flexible connector to better achieve the display effect of the display module.

[0131] Exemplarily, as Figure 5a shown, in the related art, the cutting edge profiles of the polarizer 23 and the polarizer protective film 24 are perpendicular to the display surface of the screen body; in the embodiment of the present disclosure, the cutting edge profile of the optical structure 12 can be changed from the corresponding vertical direction of 90 degrees in the related art to the buffer surface 121 of the optical structure 12. For example, the cutting angle of the buffer surface 121 is 45 degrees.

[0132] As Figure 5b shown, in the related art, when the UV glue 22 is coated on the bent part 21 of the screen body, due to the influence of capillary action, the UV glue 22 can climb to the same height as the polarizer protective film 24 at the edge of the polarizer 23. In the embodiment of the present disclosure, after the buffer surface 121 of the optical structure 12 is set as an inclined surface, although the protective glue 13 is still affected by capillary action after being coated in the bending area 111, the climbing distance of the protective glue 13 on the optical structure 12 increases, and the climbing height of the protective glue 13 on the optical structure 12 is reduced, that is, H2 < H1.

[0133] As Figure 5cAs shown in the figure, in the related art, since the climbing height of the UV glue 22 is higher than the thickness of the polarizer 23, stress concentration points P will appear at the positions where the UV glue 22 climbs after curing. Such stress concentration points P are prone to problems such as screen body or circuit breakage. In the embodiments of the present disclosure, since the buffer surface 121 of the optical structure 12 is set as an inclined surface, the slope of the buffer surface 121 becomes gentler, and there is a protective glue 13 below the protruding position to protect the screen body circuit. When electronic devices such as mobile phones experience phenomena such as dropping or squeezing, the stress generated by the protective glue 13 climbing onto the inclined surface is reduced, which can better reduce the defective rate of the display module due to breakage resulting in black screens or flower screens, and improve the display effect of the display module. In addition, after the slope of the buffer surface becomes gentler, the thickness requirement for the material of the optical glue layer in the optical structure is weakened, and a thin optical glue OCA can be selected; or, under the same thickness of OCA, the display module of the embodiments of the present disclosure can achieve a narrow bezel design for the electronic device where it is located, improving the overall screen-to-body ratio of the electronic device.

[0134] An electronic device provided by an embodiment of the present disclosure may include:

[0135] A middle frame;

[0136] The display module proposed in the above embodiments of the present disclosure is installed on the middle frame.

[0137] Here, the above-mentioned electronic device can be any device with a camera, such as a mobile phone, a tablet personal computer, a personal digital assistant (PDA), a mobile internet device (MID), a wearable device, etc.

[0138] In the embodiments of the present disclosure, the above-mentioned middle frame can be a frame located between the display module and the rear shell in the electronic device, and is used to carry various components inside the electronic device.

[0139] In some embodiments, the above-mentioned electronic device may further include: a circuit board installed on the middle frame; the flexible connection member of the display module can connect the display panel, the control chip, and the circuit board of the display module. In this way, by setting the flexible connection member of the display module to connect the display panel, the control chip, and the circuit board, the layout of each component in the electronic device can be arranged more reasonably, and the occupied space of the display module in the electronic device can be reduced.

[0140] Here, the circuit board can be a Printed Circuit Board (PCB) with a double-sided fiberglass board as its material. The circuit board can be used to support various components in the electronic device and can achieve electrical connection or electrical insulation between various components. The circuit board can transmit display signals to the display panel of the display module through a flexible connector.

[0141] In the embodiments of the present disclosure, by forming a buffer surface on the optical structure disposed on the display surface of the display panel in the display module, the slope of the edge position of the optical structure close to the bending area becomes gentler, so as to hinder the climbing of the protective glue towards the optical structure due to capillary action through this buffer surface. Thus, when the display module experiences phenomena such as dropping or squeezing, the stress generated by the protective glue climbing to the optical structure can be reduced, better avoiding the fracture of the display module at the position where the protective glue generates stress and improving the stability of the electronic device. At the same time, the embodiments of the present disclosure can reduce the defect rate of problems such as black screen or color screen caused by the fracture of the display module and improve the display effect of the electronic device.

[0142] Figure 6 It is a block diagram of the structure of an electronic device shown according to an exemplary embodiment. For example, the electronic device 600 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0143] Referring to Figure 6 , the electronic device 600 can include one or more of the following components: a processing component 602, a memory 604, a power supply component 606, a multimedia component 608, an audio component 610, an input / output (I / O) interface 612, a sensor component 614, and a communication component 616.

[0144] The processing component 602 generally controls the overall operation of the electronic device 600, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. The processing component 602 can include one or more processors 620 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 602 can include one or more modules to facilitate the interaction between the processing component 602 and other components. For example, the processing component 602 can include a multimedia module to facilitate the interaction between the multimedia component 608 and the processing component 602.

[0145] The memory 604 is configured to store various types of data to support the operation of the electronic device 600. Examples of such data include at least one of the following: instructions for any application or method operating on the electronic device 600, contact data, phone book data, messages, pictures, and videos. The memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disk.

[0146] The power supply component 606 provides power to various components of the electronic device 600. The power supply component 606 can include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 600.

[0147] The multimedia component 608 includes a screen that provides an output interface between the electronic device 600 and the user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can not only sense the boundaries of touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operations. In some embodiments, the multimedia component 608 includes a front camera and / or a rear camera. When the electronic device 600 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0148] The audio component 610 is configured to output and / or input audio signals. For example, the audio component 610 includes a microphone (MIC). When the electronic device 600 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive external audio signals. The received audio signals can be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, the audio component 610 further includes a speaker for outputting audio signals.

[0149] The I / O interface 612 provides an interface between the processing component 602 and a peripheral interface module, and the peripheral interface module can be a keyboard, a click wheel, buttons, etc. These buttons can include, but are not limited to: a home button, a volume button, a power button, and a lock button.

[0150] The sensor component 614 includes one or more sensors for providing an assessment of the status of various aspects of the electronic device 600. For example, the sensor component 614 can detect the on / off state of the electronic device 600, the relative positioning of components, such as the display and keypad of the electronic device 600. The sensor component 614 can also detect a change in the position of the electronic device 600 or a component in the electronic device 600, the presence or absence of user contact with the electronic device 600, the orientation or acceleration / deceleration of the electronic device 600, and the temperature change of the electronic device 600. The sensor component 614 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 614 can also include a light sensor, such as a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, the sensor component 614 can further include at least one of the following, but is not limited to: an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, and a temperature sensor.

[0151] The communication component 616 is configured to facilitate communication between the electronic device 600 and other devices in a wired or wireless manner. The electronic device 600 can access a communication standard-based wireless network, such as Wi-Fi, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0152] In an exemplary embodiment, the electronic device 600 can be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0153] It should also be noted that the term "comprising", "including", or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, commodity, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, commodity, or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of another identical element in the process, method, commodity, or device comprising the element.

[0154] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

[0155] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A display module, characterized in that, Comprising: A display panel having a bent region; A protective adhesive covering the surface of the bent region for strengthening the bent region; An optical structure located on the display surface of the display panel and having a buffer surface; the buffer surface is used to prevent the protective adhesive from climbing towards the optical structure.

2. The display module according to claim 1, wherein The optical structure includes a first surface in contact with the display surface of the display panel; The buffer surface is disposed adjacent to the first surface and is on the same side of the optical structure as the protective adhesive.

3. The display module according to claim 1, wherein The buffer surface is an inclined surface that slopes away from the display panel.

4. The display module according to claim 3, wherein, There is an angle between the inclined surface and a preset direction, the preset direction is perpendicular to the display surface of the display panel, and the angle range of the angle is from 30 degrees to 60 degrees.

5. The display module according to any one of claims 1 to 4, characterized in that, The optical structure includes: An optical adhesive layer covering the display surface of the display panel; A polarizing layer located between the optical adhesive layer and the display panel; Wherein, the buffer surface is the side surface of the polarizing layer facing the protective adhesive.

6. The display module according to claim 5, wherein The display module further includes: A cover plate disposed on the display surface of the display panel and covering the display panel; The optical adhesive layer is located between the cover plate and the polarizing layer.

7. The display module according to any one of claims 1 to 4, characterized in that, The display module further includes: A support block located on the back of the display surface of the display panel; A first substrate and a second substrate are respectively disposed on opposite sides of the support block and are both located between the display panel and the support block; A heat dissipation layer located between the support block and the first substrate for dissipating heat from the display panel through the first substrate; The bent region partially surrounds the first substrate, the heat dissipation layer, the support block, and the second substrate.

8. The display module according to any one of claims 1 to 4, characterized in that The display module further includes: A flexible connector connecting the display panel; A control chip is spaced apart from the protective adhesive on the same side of the display panel and is connected to the flexible connector for transmitting a display signal to the display panel through the flexible connector; The protective adhesive is located between the control chip and the optical structure.

9. The display module according to any one of claims 1 to 4, characterized in that The protective adhesive includes a photosensitive adhesive.

10. An electronic device, characterized in that, Comprising: A middle frame; The display module according to any one of claims 1 to 9 is mounted on the middle frame.

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