Backlight module, display screen and electronic equipment

Abstract

The utility model relates to a backlight module, a display screen and electronic equipment. The backlight module comprises a light source assembly; the light guide plate is arranged on one side of the light source assembly; the bonding piece is attached to the side, facing the light source assembly, of the light guide plate; the first protruding part is located on the side, facing the bonding piece, of the light guide plate and clamped with the bonding piece, and the first protruding part is configured to fix the bonding piece and the light guide plate. According to the embodiment of the invention, the bonding strength of the light guide plate and the bonding piece can be effectively improved, and the reliability of the backlight module is improved.

Description

Technical Field

[0001] The present disclosure relates to a display field, and in particular to a backlight module, a display screen and an electronic device. Background Art

[0002] With the continuous development of electronic technology, electronic devices such as mobile phones and tablet computers have become common communication tools in people's daily lives.

[0003] Currently, when a mobile phone falls from a height, the light guide plate in the backlight module of the mobile phone will usually shift, pulling the lamp glue on the light guide plate to deform, causing the lamp glue and the light guide plate to come apart, causing light leakage or light shadow on the side of the mobile phone screen close to the lamp port, affecting the screen visual effects of the mobile phone. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a backlight module, a display screen and an electronic device, which can effectively increase the bonding strength between the light guide plate and the adhesive member and improve the reliability of the backlight module.

[0005] According to a first aspect of an embodiment of the present disclosure, a backlight module is provided, the backlight module at least comprising:

[0006] Light source assembly;

[0007] A light guide plate, arranged on one side of the light source assembly;

[0008] An adhesive member, attached to a side of the light guide plate facing the light source assembly;

[0009] The first protrusion is located on a side of the light guide plate facing the adhesive component and is engaged with the adhesive component, and is configured to fix the adhesive component and the light guide plate.

[0010] In some embodiments, the light source assembly comprises:

[0011] Light source body;

[0012] A flexible circuit board connected to the light source body;

[0013] The adhesive member is located between the flexible circuit board and the light guide plate.

[0014] In some embodiments, a second protrusion is formed on a side of the flexible circuit board facing the light source body;

[0015] The second protrusion is engaged with the adhesive component and is configured to fix the adhesive component and the flexible circuit board.

[0016] In some embodiments, a protruding direction of the first protrusion is opposite to a protruding direction of the second protrusion.

[0017] In some embodiments, the second protrusion is formed on the flexible circuit board along an extension direction of the flexible circuit board.

[0018] In some embodiments, the second protrusion is multiple;

[0019] A plurality of the second protrusions are arranged at intervals on the flexible circuit board; and the second protrusions are parallel to each other.

[0020] In some embodiments, the second protrusion has a shape of a prism or a pyramid.

[0021] In some embodiments, there are a plurality of first protrusions; the plurality of first protrusions are spaced apart from each other on the light guide plate.

[0022] In some embodiments, the intervals between two adjacent first protrusions in the plurality of first protrusions are equal.

[0023] In some embodiments, the shape of the first protrusion includes a cone or a pyramid.

[0024] According to a second aspect of the embodiments of the present disclosure, a display screen is provided, comprising: a backlight module as described in the first aspect.

[0025] According to a third aspect of an embodiment of the present disclosure, there is provided an electronic device, comprising: a display screen as described in the second aspect.

[0026] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0027] The embodiments of the present disclosure provide a backlight module, a display screen and an electronic device, wherein the backlight module includes: a light source assembly; a light guide plate, which is arranged on one side of the light source assembly; an adhesive member, which is attached to the side of the light guide plate facing the light source assembly; and a first protrusion, which is located on the side of the light guide plate facing the adhesive member and is engaged with the adhesive member, and is configured to fix the adhesive member and the light guide plate. Thus, unlike the related art in which the light guide plate is directly bonded to the adhesive member, the embodiments of the present disclosure can add a first protrusion to the area where the adhesive member is attached to the light guide plate, and the adhesive member and the light guide plate are fixed by engaging the first protrusion with the adhesive member, thereby effectively increasing the bonding strength between the light guide plate and the adhesive member and improving the reliability of the backlight module.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] Figure 1 is a schematic diagram of a structure of a backlight module according to an exemplary embodiment Figure 1 .

[0031] Figure 2 is a schematic diagram of a structure of a backlight module according to an exemplary embodiment Figure 2 .

[0032] Figure 3 The figure is a schematic diagram of the structure of a flexible circuit board in a backlight module according to an exemplary embodiment.

[0033] Figure 4 It is a schematic structural diagram of a traditional backlight module according to an exemplary embodiment.

[0034] Figure 5 The present invention is a structural block diagram of an electronic device according to an exemplary embodiment.

[0035] Reference numerals:

[0036] 10-backlight module, 11-light source assembly, 12-light guide plate, 13-adhesive, 14-first protrusion, 111-light source body, 15-flexible circuit board, 16-second protrusion, 20-traditional backlight module, 21-traditional light guide plate, 22-light bar FPC, 23-light glue, 24-LED lamp. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of structures consistent with some aspects of the present disclosure as detailed in the appended claims.

[0038] In the description of the present disclosure, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0039] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0040] The technical solutions provided by various embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings.

[0041] Figure 1 is a schematic diagram of a structure of a backlight module according to an exemplary embodiment Figure 1 ,like Figure 1 As shown, the backlight module 10 provided in the embodiment of the present disclosure may include:

[0042] Light source assembly 11;

[0043] The light guide plate 12 is disposed on one side of the light source assembly 11;

[0044] The adhesive member 13 is attached to a side of the light guide plate 12 facing the light source assembly 11;

[0045] The first protrusion 14 is located on a side of the light guide plate 12 facing the adhesive member 13 and is engaged with the adhesive member 13 to fix the adhesive member 13 and the light guide plate 12 .

[0046] In the disclosed embodiment, the backlight module can be responsible for illuminating the screen of the electronic device. Among them, backlight is a form of lighting in the electronics industry, and is often used in the display of liquid crystal displays (LCD). The difference between backlight and frontlight is that the backlight is illuminated from the side or back, while the frontlight, as the name suggests, is illuminated from the front. Both are used to increase the illumination in low light environments and the brightness on computer monitors and liquid crystal screens, and generate light in a manner similar to that of cathode ray tube (CRT) displays.

[0047] Here, the light source assembly may be a component in the backlight module that can emit light. For example, the light source assembly may include a light source body and a flexible circuit board.

[0048] In some embodiments, Figure 1 As shown, the light source assembly 11 includes:

[0049] Light source body 111;

[0050] A flexible circuit board 15 connected to the light source body 111;

[0051] The adhesive member 13 is located between the flexible circuit board 15 and the light guide plate 12 .

[0052] In this way, the flexible circuit board and the light guide plate can be fixed by the adhesive to improve the stability of the backlight module.

[0053] In the embodiment of the present disclosure, the light source body may be a component in the backlight module that can emit light; for example, the light source body may be a light-emitting diode (LED), an electroluminescent (EL) or a cold cathode fluorescent lamp (CCFL).

[0054] It should be noted that the specific number of the above light source bodies can be set according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the light source body can be a linear light source CCFL; or, the light source body can also be a plurality of LED lamp beads.

[0055] Here, the flexible printed circuit (FPC) can be a circuit board connected to the circuit of the light source body. Among them, FPC is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as a substrate; FPC has the characteristics of high wiring density, light weight, thin thickness and good bendability.

[0056] It is understandable that when the light source body is an LED lamp bead, the LED lamp bead can be distributed in an array on the FPC, that is, to form an FPC light strip; in this case, the light source body is welded on the FPC so that the circuit of the light source body can be connected to emit light. When the light source body is a linear light source CCFL, the light source body can be connected to the FPC; in this case, the flexible circuit board is located on the first side of the light guide plate, the light source body can be located on the second side of the light guide plate, and the first side and the second side are adjacent sides of the light guide plate.

[0057] It should be noted that the positional relationship between the light source body and the flexible circuit board can also be set according to actual application conditions, and the embodiments of the present disclosure are not limited thereto.

[0058] In the embodiment of the present disclosure, the light guide plate may be a component in the backlight module that converts a line light source into a surface light source.

[0059] Here, the optical grade acrylic sheet of the light guide plate is used to absorb the light emitted from the lamp and stay on the surface of the sheet. When the light hits the light guide points on the light guide plate, the reflected light will spread to various angles, and then destroy the reflection conditions and emit from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly.

[0060] It is understandable that in order to reduce the thickness of the light guide plate, the light source body in the light source assembly can be arranged on the side of the light guide plate. The line light source emitted by the light source body enters from the side of the light guide plate, the light is transmitted inside the light guide plate, and irradiates the mesh points of the light guide plate, resulting in scattering, and then the light is output from the side of the light guide plate without mesh points, forming a surface light source.

[0061] It should be noted that the light guide plate can be located on the same side of the light source body and the flexible circuit board in the light source assembly, or the light guide plate can also be located at the angle formed between the light source body and the flexible circuit board, which is not limited in the embodiments of the present disclosure.

[0062] In some embodiments, the backlight module may further include a reflective sheet located on a side of the light guide plate away from the light source assembly. The reflective sheet may reflect light exposed from the bottom surface of the light guide plate back into the light guide plate, thereby improving light use efficiency.

[0063] It should be noted that the shape of the light guide plate can be set according to the actual application situation, and the embodiments of the present disclosure do not limit it. For example, the shape of the light guide plate can be a flat plate or a wedge-shaped plate. Among them, the flat plate means that the light guide plate is rectangular when viewed from the light entrance; the wedge-shaped plate is also called an inclined plate, and the light guide plate is in a wedge shape when viewed from the light entrance, that is, one side is thick and the other side is thin.

[0064] In the disclosed embodiment, the adhesive member may be glue used to bond the light guide plate to other components. For example, the adhesive member may be organic silicone, epoxy resin or photosensitive adhesive, etc. The bonding area between the adhesive member and the light guide plate may be the adhesive area of ​​the light guide plate.

[0065] Here, the adhesive may have good light transmittance, heat resistance, weather resistance and bonding strength to ensure a stable connection between the light guide plate and other components, and effectively transmit light to the screen of the electronic device to achieve a uniform lighting effect.

[0066] It should be noted that the adhesive can be used to fix the light source assembly and the light guide plate; or, the adhesive can also be used to fix the light guide plate and other components. The adhesive can provide mechanical support and optical coupling in the backlight module.

[0067] For example, during the manufacturing process of the backlight module, an adhesive such as light glue is applied to the bottom or side of the light source body such as an LED light bar, and then the LED light bar is bonded to the light guide plate; at this time, the light glue can ensure good contact between the LED light bar and the light guide plate, reduce light loss, and improve the uniformity of light. In addition, the light glue can also be used to fill the gaps between the LED lamp beads on the FPC, which can reduce the scattering and absorption of light between the lamp beads, enhance the utilization of light, and thus improve the overall optical effect of the backlight module.

[0068] In the embodiment of the present disclosure, the first protrusion may be a component for clamping the adhesive member and the light guide plate. That is, the first protrusion can increase the bonding strength between the adhesive member and the light guide plate.

[0069] Here, the specific shape of the first protrusion can be set according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the first protrusion can be a column, a cone, a table or a sphere.

[0070] In some embodiments, the shape of the first protrusion includes a cone or a pyramid. In this way, when the electronic device where the backlight module is located falls from a direction parallel to the light guide plate, the bonding strength between the adhesive member and the light guide plate can be better increased to reduce the possibility of debonding between the adhesive member and the light guide plate.

[0071] It is understandable that the protrusion direction of the first protrusion may be toward the adhesive member. That is, the bottom of the conical or pyramidal first protrusion is connected to the light guide plate, and the tip of the first protrusion is surrounded by the adhesive member.

[0072] It should be noted that the first protrusion and the light guide plate can be integrally formed; or, the first protrusion can be welded to the light guide plate; or, the first protrusion can be connected to the light guide plate by threads, etc., and the embodiments of the present disclosure are not limited thereto.

[0073] For example, the light guide plate injection mold may be subjected to a collision point process so that the molded light guide plate is provided with a first protrusion such as a conical protrusion in the adhesive region of the adhesive member.

[0074] Here, the material and size of the first protrusion may also be set according to the material and size of the light guide plate in actual application, and the embodiment of the present disclosure does not limit this.

[0075] It should be noted that the specific number of the first protrusions can also be set according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the first protrusion can be one, and one first protrusion is set at any position in the adhesive area of ​​the light guide plate; or the first protrusion can also be multiple, and multiple first protrusions are spaced apart and set in the adhesive area of ​​the light guide plate.

[0076] In some embodiments, Figure 1 As shown, there are a plurality of first protrusions 14 ; the plurality of first protrusions 14 are disposed on the light guide plate 12 at intervals.

[0077] In this way, by arranging a plurality of first protrusions at intervals on the light guide plate, the bonding strength between the light guide plate and the adhesive member can be further increased, thereby improving the reliability of the backlight module.

[0078] In the disclosed embodiment, a plurality of first protrusions may be arranged in an array to form a plurality of rows of first protrusions, each row of first protrusions includes a plurality of first protrusions arranged at intervals, and each row of first protrusions is located in the adhesive region of the light guide plate. Alternatively, a plurality of first protrusions may also be arranged in the adhesive region of the light guide plate at intervals of a row. Alternatively, a plurality of first protrusions may also be arranged in an alternating manner in the adhesive region of the light guide plate. Of course, in another embodiment, a plurality of first protrusions may also be arranged in parallel in the adhesive region of the light guide plate.

[0079] It should be noted that the shape of each first protrusion may be the same or different; the size of each first protrusion may be the same or different, and the embodiment of the present disclosure does not limit this.

[0080] In addition, the spacing between two adjacent first protrusions among the plurality of first protrusions may be the same or different, as long as each first protrusion is located in the adhesive region of the light guide plate, and the embodiments of the present disclosure do not limit this.

[0081] In some embodiments, Figure 1 As shown, the intervals between two adjacent first protrusions 14 among the plurality of first protrusions 14 are equal.

[0082] In this way, by setting the spacing between two adjacent first protrusions among the multiple first protrusions to be equal, it is possible to ensure that the tension between the adhesive and the light guide plate is the same when the electronic device where the backlight module is located falls, thereby further increasing the bonding strength between the light guide plate and the adhesive and improving the reliability of the backlight module.

[0083] In the embodiments of the present disclosure, when the multiple first protrusions on the light guide plate are arranged in an array to form multiple rows of first protrusions, the spacing between two adjacent first protrusions is equal; when the multiple first protrusions on the light guide plate are arranged in a row, the spacing between two adjacent first protrusions is equal; when the multiple first protrusions on the light guide plate are staggered, the spacing between two adjacent first protrusions is equal.

[0084] The disclosed embodiment provides a backlight module, which includes: a light source assembly; a light guide plate, which is arranged at the light source assembly; an adhesive member, which is attached to the side of the light guide plate facing the light source assembly; and a first protrusion, which is located on the side of the light guide plate facing the adhesive member and is engaged with the adhesive member, and is configured to fix the adhesive member and the light guide plate. Thus, unlike the related art in which the light guide plate is directly bonded to the adhesive member, the disclosed embodiment can add a first protrusion at the area where the adhesive member is attached to the light guide plate, and the adhesive member and the light guide plate are fixed by engaging the first protrusion with the adhesive member, thereby effectively increasing the bonding strength between the light guide plate and the adhesive member, and improving the reliability of the backlight module.

[0085] Figure 2 is a schematic diagram of a structure of a backlight module according to an exemplary embodiment Figure 2 ,like Figure 2 As shown, the backlight module provided in the embodiment of the present disclosure is Figure 1 Other components, such as a second protruding portion, are further added to the backlight module shown.

[0086] like Figure 2 As shown, the flexible circuit board 15 provided in the embodiment of the present disclosure is formed with a second protrusion 16 on the side facing the light source body 111;

[0087] The second protrusion 16 is engaged with the adhesive member 13 and is configured to fix the adhesive member 13 and the flexible circuit board 15 .

[0088] Here, the bonding area between the adhesive member and the flexible circuit board may be the adhesive area of ​​the flexible circuit board. In the embodiment of the present disclosure, the flexible circuit board and the light guide plate may be connected by the adhesive member to ensure the stability of the backlight module.

[0089] It should be noted that the specific size of the flexible circuit board can be set according to actual application conditions, and the embodiments of the present disclosure do not limit this.

[0090] In the disclosed embodiment, the second protrusion may be a component for clamping the flexible circuit board and the adhesive member, and the second protrusion may be located on the side of the flexible circuit board facing the light guide plate. That is, the second protrusion can increase the bonding strength between the flexible circuit board and the adhesive member.

[0091] Here, the specific shape of the second protrusion can be set according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the first protrusion can be a column, a cone, or a table.

[0092] In some embodiments, the second protrusion has a prism or pyramid shape. In this way, when the electronic device where the backlight module is located falls from a direction parallel to the light guide plate, the bonding strength between the flexible circuit board and the adhesive can be better increased to reduce the possibility of debonding between the flexible circuit board and the adhesive.

[0093] It can be understood that the protruding direction of the second protrusion may be toward the adhesive member; that is, the bottom of the prism-shaped or pyramid-shaped second protrusion is connected to the flexible printed circuit board.

[0094] In some embodiments, Figure 2 As shown, the protruding direction of the first protrusion 14 is opposite to that of the second protrusion 16. In this way, the bonding strength between the light guide plate and the adhesive can be better increased by the first protrusion, and the bonding strength between the flexible circuit board and the adhesive can be better increased by the second protrusion, so as to improve the reliability of the backlight module.

[0095] It should be noted that the second protrusion and the flexible circuit board can be integrally formed by injection molding; or, the second protrusion can also be welded on the flexible circuit board, etc., which is not limited in the embodiments of the present disclosure.

[0096] For example, a second protrusion may be added to the injection mold of the flexible circuit board so that the molded flexible circuit board has a second protrusion such as a prism-shaped protrusion in the adhesive region of the adhesive.

[0097] Here, the material and size of the second protrusion may also be set according to the material and size of the flexible circuit board in actual application, and the embodiment of the present disclosure does not limit this.

[0098] It should be noted that the specific number of the second protrusions can also be set according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the second protrusion can be one, and one second protrusion is set at any position in the adhesive area of ​​the flexible circuit board; or, the second protrusion can also be multiple, and multiple second protrusions are spaced apart and set in the adhesive area of ​​the flexible circuit board.

[0099] In some embodiments, Figure 3As shown, the second protrusion is formed on the flexible circuit board along the extension direction of the flexible circuit board.

[0100] In this way, the second protrusion can be arranged on the flexible circuit board along the extension direction of the flexible circuit board to increase the clamping area between the second protrusion and the adhesive, thereby further increasing the bonding strength between the flexible circuit board and the adhesive and improving the reliability of the backlight module.

[0101] In the disclosed embodiment, the second protrusion is formed on the flexible circuit board along the extension direction of the flexible circuit board, which can be understood as the setting direction of the second protrusion is parallel to the extension direction of the flexible circuit board, that is, the second protrusion can be in the shape of a long strip.

[0102] It should be noted that when the flexible circuit board is bent, the corresponding second protrusion may have the same bending degree as the flexible circuit board.

[0103] It can be understood that since the flexible circuit board is in the shape of an elongated strip, the second protrusion can be arranged along the extension direction of the flexible circuit board, so that the flexible circuit board and the adhesive area of ​​the adhesive component are both provided with the second protrusion in the extension direction thereof, so as to increase the clamping area between the second protrusion and the adhesive component.

[0104] In some embodiments, Figure 3 As shown, there are multiple second protrusions;

[0105] A plurality of second protrusions are arranged at intervals on the flexible circuit board; and the second protrusions are parallel to each other.

[0106] In this way, by setting a plurality of second protrusions at intervals on the flexible circuit board and making the second protrusions parallel to each other, it is possible to ensure that the tension between the adhesive and the flexible circuit board is more balanced when the electronic device where the backlight module is located falls, thereby further increasing the bonding strength between the light guide plate and the adhesive and improving the reliability of the backlight module.

[0107] In the embodiment of the present disclosure, each second protrusion is arranged at intervals along the extension direction of the flexible circuit board, that is, each second protrusion is parallel to each other.

[0108] It is understandable that the plurality of second protrusions may also be arranged in an array to form a plurality of rows of second protrusions, each row of second protrusions includes a plurality of second protrusions arranged at intervals, and each row of second protrusions is located in the adhesive region of the flexible circuit board. Alternatively, the plurality of second protrusions may also be arranged in the adhesive region of the flexible circuit board at intervals of a row. Alternatively, the plurality of second protrusions may also be arranged in an interlaced manner in the adhesive region of the flexible circuit board. Of course, in another embodiment, the plurality of second protrusions may also be arranged in parallel in the adhesive region of the flexible circuit board.

[0109] Here, each second protrusion may be disposed at a gap between the light source body and the flexible circuit board to avoid affecting the light-emitting operation of the light source body.

[0110] It should be noted that the shape of each second protrusion may be the same or different; the size of each second protrusion may be the same or different, and the embodiment of the present disclosure does not limit this.

[0111] In addition, the spacing between two adjacent second protrusions among the plurality of second protrusions may be the same or different, as long as each second protrusion is located in the adhesive region of the flexible circuit board, and the embodiments of the present disclosure do not limit this.

[0112] In the embodiment of the present disclosure, when multiple second protrusions on the flexible circuit board are arranged in an array to form multiple rows of second protrusions, the spacing between two adjacent second protrusions can be equal; when multiple second protrusions on the flexible circuit board are arranged at intervals of a row, the spacing between two adjacent second protrusions can also be equal; when multiple second protrusions on the flexible circuit board are staggered, the spacing between two adjacent second protrusions can also be equal.

[0113] The backlight module provided by the embodiment of the present disclosure can increase the bonding strength between the light guide plate and the adhesive component by adding a first protrusion on the side of the light guide plate facing the adhesive component, and at the same time, add a second protrusion on the side of the flexible circuit board facing the adhesive component. The second protrusion engages with the adhesive component to fix the adhesive component and thus effectively increase the bonding strength between the flexible circuit board and the adhesive component and reduce the possibility of debonding between the flexible circuit board and the adhesive component, thereby improving the reliability of the backlight module.

[0114] A display screen proposed in an embodiment of the present disclosure may at least include: a backlight module proposed in the above embodiment of the present disclosure.

[0115] Here, the specific type of the display screen can be selected according to the actual application situation, and the embodiment of the present disclosure does not limit it. For example, the display screen can be an LCD display screen of a mobile phone, an LCD display screen of a television, or an LCD display screen of a shopping mall advertisement.

[0116] A display screen provided by an embodiment of the present disclosure can fix the adhesive member and the light guide plate by adding a first protrusion on the light guide plate, and fix the adhesive member and the flexible circuit board by adding a second protrusion on the flexible circuit board, thereby effectively increasing the bonding strength between the adhesive member and the light guide plate, as well as the bonding strength between the flexible circuit board and the adhesive member, thereby reducing the possibility of debonding between the light guide plate and the adhesive member, as well as the possibility of debonding between the flexible circuit board and the adhesive member when the electronic device falls, thereby improving the reliability of the display screen.

[0117] In related technologies, such as Figure 4 As shown, in the traditional backlight module 20 of the mobile phone, the traditional light guide plate 21 and the light bar FPC 22 are fixedly connected only by the light glue 23. When the mobile phone falls from a height, for example, when it falls in the width direction of the mobile phone, the traditional light guide plate 21 will usually shift, pulling the light glue 23 and the light bar FPC 22 to deform. If the deformation is large, it will inevitably cause the light glue 23 and the traditional light guide plate 21 to debond, or cause the light glue 23 and the light bar FPC 22 to debond. Regardless of the mode of debonding, it will cause the light path of the light emitted by the LED lamp 24 to change, which will cause light leakage or light shadow on the side of the mobile phone screen close to the lamp mouth, affecting the screen visual effect of the mobile phone.

[0118] Based on this, the embodiment of the present disclosure provides an electronic device, which may include the display screen proposed in the above embodiment of the present disclosure. Since the display screen may include the backlight module proposed in the above embodiment of the present disclosure, the bonding strength between the light guide plate and the adhesive member, and the bonding strength between the flexible circuit board and the adhesive member can be effectively increased.

[0119] An electronic device proposed in an embodiment of the present disclosure may at least include: a display screen proposed in the above embodiment of the present disclosure.

[0120] Here, the electronic device can be any device with an LCD screen, such as a mobile phone, a tablet computer (Tablet Personal Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device), etc.

[0121] In the disclosed embodiment, the light guide plate of the backlight module can transform the line light source of the light source body into a surface light source, and output the surface light source to the screen of the electronic device, so as to improve the display effect of the screen of the electronic device.

[0122] An electronic device provided by an embodiment of the present disclosure can add a first protrusion at the area where the adhesive is attached to the light guide plate, and the first protrusion is engaged with the adhesive to fix the adhesive and the light guide plate, thereby effectively increasing the bonding strength between the light guide plate and the adhesive; and a second protrusion is added to the side of the flexible circuit board facing the adhesive, and the second protrusion is engaged with the adhesive to fix the adhesive and the flexible circuit board, thereby effectively increasing the bonding strength between the flexible circuit board and the adhesive, thereby reducing the possibility of debonding between the light guide plate and the adhesive, and reducing the possibility of debonding between the flexible circuit board and the adhesive when the electronic device falls, thereby improving the reliability of the electronic device.

[0123] Figure 5 5 is a block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 500 may 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.

[0124] Reference Figure 5 , the electronic device 500 may include one or more of the following components: a processing component 502 , a memory 504 , a power component 506 , a multimedia component 508 , an audio component 510 , an input / output (I / O) interface 512 , a sensor component 514 , and a communication component 516 .

[0125] The processing component 502 generally controls the overall operation of the electronic device 500, such as operations associated with at least one of display, phone calls, data communications, camera operations, and recording operations. The processing component 502 may include one or more processors 520 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 502 may include one or more modules to facilitate the interaction between the processing component 502 and other components. For example, the processing component 502 may include a multimedia module to facilitate the interaction between the multimedia component 508 and the processing component 502.

[0126] The memory 504 is configured to store various types of data to support operations on the electronic device 500. Examples of such data include at least one of the following: instructions for any application or method operating on the electronic device 500, contact data, phone book data, messages, pictures, and videos. The memory 504 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0127] The power supply component 506 provides power to various components of the electronic device 500. The power supply component 506 may 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 500.

[0128] The multimedia component 508 includes a screen that provides an output interface between the electronic device 500 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 508 includes a front camera and / or a rear camera. When the electronic device 500 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0129] The audio component 510 is configured to output and / or input audio signals. For example, the audio component 510 includes a microphone (MIC), and when the electronic device 500 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 504 or sent via the communication component 516. In some embodiments, the audio component 510 also includes a speaker for outputting audio signals.

[0130] I / O interface 512 provides an interface between processing component 502 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0131] The sensor assembly 514 includes one or more sensors for providing various aspects of status assessment for the electronic device 500. For example, the sensor assembly 514 can detect the open / closed state of the electronic device 500, the relative positioning of the components, such as the display and keypad of the electronic device 500, and the sensor assembly 514 can also detect the position change of the electronic device 500 or a component in the electronic device 500, the presence or absence of contact between the user and the electronic device 500, the orientation or acceleration / deceleration of the electronic device 500, and the temperature change of the electronic device 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 514 may 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 assembly 514 may also include, but is not limited to, at least one of the following: an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, and a temperature sensor.

[0132] The communication component 516 is configured to facilitate wired or wireless communication between the electronic device 500 and other devices. The electronic device 500 can access a wireless network based on a communication standard, such as Wi-Fi, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 516 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 516 also 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-wideband (Ultra Wide Band, UWB) technology, Bluetooth (BT) technology and other technologies.

[0133] In an exemplary embodiment, the electronic device 500 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components.

[0134] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, commodity or device including the element.

[0135] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0136] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A backlight module, characterized in that: include: Light source assembly; A light guide plate, arranged on one side of the light source assembly; An adhesive member, attached to a side of the light guide plate facing the light source assembly; The first protrusion is located on a side of the light guide plate facing the adhesive component and is engaged with the adhesive component, and is configured to fix the adhesive component and the light guide plate.

2. The backlight module according to claim 1, characterized in that: The light source assembly comprises: Light source body; A flexible circuit board connected to the light source body; The adhesive member is located between the flexible circuit board and the light guide plate.

3. The backlight module according to claim 2, characterized in that: The flexible circuit board is formed with a second protrusion on a side facing the light source body; The second protrusion is engaged with the adhesive component and is configured to fix the adhesive component and the flexible circuit board.

4. The backlight module according to claim 3, characterized in that: A protruding direction of the first protruding portion is opposite to a protruding direction of the second protruding portion.

5. The backlight module according to claim 3, characterized in that: The second protrusion is formed on the flexible circuit board along an extending direction of the flexible circuit board.

6. The backlight module according to claim 3, characterized in that: There are multiple second protrusions; A plurality of the second protrusions are arranged at intervals on the flexible circuit board; and the second protrusions are parallel to each other.

7. The backlight module according to claim 3, characterized in that: The second protrusion has a shape of a prism or a pyramid.

8. The backlight module according to any one of claims 1 to 7, characterized in that: There are a plurality of the first protrusions, and the plurality of the first protrusions are arranged on the light guide plate at intervals.

9. The backlight module according to claim 8, characterized in that: The intervals between two adjacent first protrusions among the plurality of first protrusions are equal.

10. The backlight module according to any one of claims 1 to 7, characterized in that: The first protrusion has a cone or pyramid shape.

11. A display screen, characterized in that: include: A backlight module as claimed in any one of claims 1 to 10.

12. An electronic device, characterized in that: include: The display screen as claimed in claim 11.

Images