Display screen module, mobile terminal and bonding method of display screen module

Abstract

The display module comprises a display panel having an edge area, a flexible circuit board connected to the edge area through a plurality of connecting portions in a strip shape, and a glass cover plate covering the display panel, the connecting portions are arranged at intervals in a first direction along the edge area, and a ratio of a size of at least part of the connecting portions in a second direction perpendicular to the first direction to a size in the first direction is less than or equal to 0.5. In this way, by reducing the length-width ratio of the connecting portion, the width of the edge area is reduced, the narrow-frame design is realized, the display module has a larger visual area, the screen-to-body ratio is obviously improved, the appearance effect is better, and the use experience of the user is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of terminal equipment, and in particular to a display screen module, a mobile terminal, and a bonding method for the display screen module. Background Art

[0002] Current wearable devices, such as bracelets and watches, are increasingly demanding a higher screen-to-body ratio. In related end-products, the gold fingers (conductive contacts) extend along the length of the display. This results in a larger gold finger length, increasing the width of the device's bezel and reducing the proportion of the screen's visible area to the total screen surface area. This severely impacts the user experience and reduces aesthetics. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present disclosure provides a display screen module, a mobile terminal, and a bonding method for the display screen module.

[0004] According to a first aspect of an embodiment of the present disclosure, a display screen module is provided, comprising a display panel having an edge region, a flexible circuit board connected to the edge region via a connecting portion, and a glass cover covering the display panel, wherein the connecting portion is strip-shaped and is provided in a plurality of strips, and the plurality of connecting portions are spaced apart in a first direction along the edge region;

[0005] Wherein, a ratio of a size of at least part of the connecting portion in a second direction perpendicular to the first direction to a size in the first direction is less than or equal to 0.5.

[0006] Optionally, the routing area of ​​the wire connected to the connecting portion is configured as a fan, and the plurality of wires are radially arranged along the center of the fan.

[0007] Optionally, each of the conductive wires extends along an extension direction of the corresponding connecting portion.

[0008] Optionally, the multiple connecting portions are in the shape of quadrilaterals, one set of opposite sides of all the quadrilaterals respectively extend along the first direction, and another set of opposite sides of at least some of the quadrilaterals are respectively inclined to the second direction.

[0009] Optionally, the extension directions of the plurality of connection portions are symmetrically distributed along a center line of the flexible circuit board.

[0010] Optionally, the plurality of connecting portions are in the shape of a parallelogram, and the other set of opposite sides of each parallelogram extends along the extension direction of the corresponding conductive wire.

[0011] Optionally, the areas of each of the connecting portions are the same.

[0012] According to a second aspect of an embodiment of the present disclosure, a mobile terminal is provided, comprising the above-mentioned display screen module and a middle frame arranged on the side of the display panel and connected to the glass cover plate, wherein an L-shaped step is formed at the end of the inner wall of the middle frame close to the glass cover plate, and the glass cover plate is adhered to the step.

[0013] Optionally, a dispensing glue layer is provided between the side surface of the glass cover plate and the side close to the display panel and both sides of the step respectively.

[0014] Optionally, a surface of the glass cover plate for bonding to the middle frame is covered with an ink layer.

[0015] Optionally, the mobile terminal is a wearable device.

[0016] According to a third aspect of an embodiment of the present disclosure, a method for bonding a display screen module is provided, for bonding the display screen module to a middle frame of a terminal device, wherein the display screen module is the above-mentioned display screen module, and the glass cover plate laterally protrudes from the display panel. The method comprises:

[0017] The portion of the glass cover plate protruding from the display panel is bonded to the middle frame through a suspension dispensing process.

[0018] Optionally, an L-shaped step is formed on an end portion of the inner wall of the middle frame close to the glass cover plate, and the method includes:

[0019] The side surface of the glass cover plate and the surface close to the display panel are bonded to the step of the middle frame.

[0020] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0021] Through the above technical solution, the aspect ratio of the connecting part is reduced. While ensuring the area of ​​the connecting part remains unchanged, that is, while ensuring the impedance, the length of the connecting part is reduced, which can reduce the width of the edge area and realize a narrow frame design. The display module can obtain a larger viewing area, the screen-to-body ratio is significantly improved, and the appearance effect is better, thereby enhancing the user experience.

[0022] 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 disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a structural diagram of a display screen module in the prior art;

[0025] Figure 2 is a structural schematic diagram of a display screen module according to an exemplary embodiment of the present disclosure;

[0026] Figure 3 yes Figure 2 A partial schematic diagram of

[0027] Figure 4 This is a schematic diagram showing the connection between the display screen module and the middle frame in a mobile terminal according to an exemplary embodiment of the present disclosure.

[0028] Description of Reference Numerals

[0029] 1 Edge area 2 Connection area

[0030] 3 Flexible circuit board 4 Glass cover

[0031] 5 demux 6 conductors

[0032] 7 Middle frame 71 steps

[0033] 8 glue layer DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0035] In the present disclosure, unless otherwise specified, "inside" and "outside" refer to the outlines of corresponding components. When the following description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements.

[0036] In related technologies, such as Figure 1 As shown, the size of each connection portion 2 in the second direction is larger than the size in the first direction. This will result in the layout size of the connection portion 2 in the second direction of the edge area 1 being larger, resulting in a wider screen border and a poor screen-to-body ratio, which affects the user experience. It should be noted that the connection portion 2 here refers to the gold finger (i.e., conductive contact), and signals are transmitted through the connection portion 2 during operation of the mobile terminal.

[0037] like Figure 2 、 Figure 3As shown, the present disclosure provides a display screen module, which may include a display panel having an edge area 1, a flexible circuit board 3 connected to the edge area 1 through a connecting portion 2, and a glass cover plate 4 covering the display panel. The connecting portion 2 may be bar-shaped and there may be multiple of them. It should be noted here that the bar may be a rectangle, a parallelogram, an oblong, or an irregular shape with pointed ends at opposite ends, etc. Of course, the bar shape is not limited to the above-mentioned shapes and is not limited in the present disclosure. Among them, a plurality of connecting portions 2 are spaced apart in a first direction along the edge area 1; wherein, the ratio of the dimension of at least part of the connecting portion 2 in a second direction perpendicular to the first direction to the dimension in the first direction is less than or equal to 0.5. Here, the second direction of the connecting portion 2 is defined as the length direction of the connecting portion 2, and the first direction of the connecting portion 2 is defined as the width direction of the connecting portion 2, that is, the aspect ratio of multiple or all connecting portions 2 is less than or equal to 0.5. It should be noted that, Figure 2 The X direction is the first direction, the Y direction is the second direction, and the edge area 1 surrounds the periphery of the display screen. In the embodiment of the present disclosure, the connection part 2 is arranged on the frame area 1 located in the width direction of the display screen, and is spaced apart along the first direction of the edge area 1. The above-mentioned first direction is the width direction of the display screen. The aspect ratio of multiple or all connection parts 2 is arranged to be less than or equal to 0.5, so as to achieve a narrow frame design. Specifically, the aspect ratio of the connection part 2 can be 0.2, 0.3, or 0.4, which all fall within the protection scope of the present disclosure. In addition, the aspect ratio of the connection part 2 needs to be determined according to the width of the flexible circuit board 3 and the number and area of ​​the connection parts 2. The area of ​​the connection part 2 determines the impedance between the flexible circuit board 3 and the frame area 1. Therefore, the screen frame cannot be reduced by reducing the area of ​​the connection part 2, but the screen ratio can be increased by changing the aspect ratio of the connection part 2. In the embodiment of the present disclosure, the area of ​​each connection part 2 is the same, and the gaps between adjacent connection parts 2 are the same size. As Figure 3 As shown, since the connectors 2 are spaced apart in the width direction (first direction) of the flexible circuit board 3, given a certain number and area of ​​connectors 2, the greater the width of the flexible circuit board 3, the smaller the aspect ratio of the connectors 2 can be set, and the smaller the width of the frame area 1. Furthermore, given a certain width of the flexible circuit board 3, the fewer the number of connectors 2, the smaller the aspect ratio of the connectors 2 can be set, and the smaller the width of the frame area 1. Therefore, if the width of the flexible circuit board 3 allows, the size of the connectors 2 in the first direction should be increased as much as possible, while the size in the second direction should be reduced, thereby shortening the width of the frame area 1.

[0038] Through the above technical solution, the aspect ratio of the connecting portion 2 is reduced. While ensuring that the area of ​​the connecting portion 2 remains unchanged, that is, while ensuring the impedance, the length of the connecting portion 2 is reduced, the width of the edge area 1 can be reduced, and a narrow frame design can be achieved. The display module can obtain a larger visible area, the screen-to-body ratio is significantly improved, and the appearance effect is better, thereby enhancing the user experience.

[0039] According to some embodiments, the routing area of ​​the wire 6 connected to the connecting portion 2 can be configured as a fan, and the plurality of wires 6 are arranged radially along the center of the fan. Figure 3 As shown, the display screen module also includes a demux (demultiplexer) 5. The connecting portion 2 and the demux 5 are connected via a wire 6. The width of the routing area of ​​the demux 5 is greater than the width of the routing area of ​​the flexible circuit board 3. Here, the width of the routing area refers to the dimension in the first direction. Therefore, all or part of the wires 6 located on both sides are arranged obliquely to the second direction, wherein the wire 6 located in the middle can extend along the second direction. Specifically, multiple wires 6 are arranged radially along the center of the sector.

[0040] Each wire 6 extends along the extension direction of the corresponding connecting portion 2. Furthermore, the extension direction of the connecting portion 2 is an oblique direction or a vertical direction consistent with the extension direction of the wire 6. The vertical direction is referred to as the second direction, and the oblique direction is oblique to the second direction. This arrangement facilitates the arrangement of the wires 6, avoids bending of the wires 6, saves arrangement space, and can reduce the routing area, thereby reducing the screen bezel and increasing the screen-to-body ratio.

[0041] Furthermore, the shape of the multiple connecting parts 2 can be a quadrilateral, and one set of opposite sides of all the quadrilaterals extends along the first direction respectively. In this way, the size in the second direction can be saved. Furthermore, another set of opposite sides of at least part of the quadrilaterals are inclined to the second direction. In order to reduce the routing area of ​​the solder joints, one set of opposite sides of the quadrilateral is arranged at an angle so that it roughly or completely corresponds to the inclination of the wire 6, thereby reducing the width of the border area 1.

[0042] In the embodiments of the present disclosure, Figure 3 As shown, multiple conductors 6 are symmetrically distributed along the centerline of the flexible circuit board 3. Therefore, to ensure that each connector 2 corresponds to the arrangement of the conductors 6 it connects to, the multiple connectors 2 extend symmetrically along the centerline of the flexible circuit board 3. In the embodiment of the present disclosure, the multiple connectors 2 are distributed symmetrically along the centerline of the flexible circuit board 3 to reduce the wiring area. Furthermore, the arrangement of the multiple connectors 2 can be adjusted according to actual needs and is not specifically limited here, and all arrangements fall within the scope of protection of the present disclosure.

[0043] According to an embodiment of the present disclosure, the shapes of the plurality of connection portions 2 can be parallelograms, and the other pair of sides of each parallelogram respectively extend along the extension directions of the corresponding conductive lines 6, i.e., the inclination angles of the other pair of sides of each parallelogram are respectively the same as the inclination angles of the corresponding conductive lines 6. Referring to Figure 3 , the inclination angles of the conductive lines 6 are different, and the shapes of the connection portions 2 are adaptively designed according to the inclination angles of the conductive lines 6, so that the conductive lines 6 are prevented from being bent, thereby minimizing the wire area and saving space.

[0044] Further, although the shapes of the connection portions 2 can be different, the areas of the connection portions 2 are the same, so that the impedance values of the connection points are the same and the current is stable.

[0045] According to another aspect of the present disclosure, a mobile terminal can include the display module and the middle frame 7 disposed at the side of the display panel and connected with the glass cover plate 4, and the end of the inner wall of the middle frame 7 close to the glass cover plate 4 is formed with an L-shaped step 71, and the glass cover plate 4 is bonded to the step 71, as shown in Figure 4 , the step 71 is recessed inward, and the bonding of the step 71 and the glass cover plate 4 can make the outer end surface of the glass cover plate 4 substantially flush with the middle frame 7, and the L-shaped step 71 has two planes in the horizontal and vertical directions, so that the bonding is more secure, and the glass cover plate 4 is effectively prevented from being offset in each direction. In order to achieve the waterproof effect, it is necessary to ensure the minimum contact width of the dispensing surface, and by bonding the glass cover plate 4 and the middle frame 7 in the vertical direction, the bonding width in the horizontal direction can be reduced, i.e., the size of the glass cover plate 4 beyond the display panel can be reduced, and the narrow frame design can be achieved.

[0046] Specifically, referring to Figure 4 , the side surface and the surface close to the display panel of the glass cover plate 4 can be respectively provided with a dispensing layer 8 between the two sides of the step 71. In the embodiment of the present disclosure, the dispensing surface includes a vertical surface and a horizontal surface, wherein the vertical surface is bonded to the side surface of the glass cover plate 4, and the horizontal surface is bonded to the surface of the glass cover plate 4 close to the display panel. By adding the dispensing surface in the vertical direction, the width of the horizontal dispensing surface can be reduced, and the frame width of the mobile terminal can be further reduced. The above-mentioned "vertical" and "horizontal" are defined in the case that the mobile terminal provided by the present disclosure is placed horizontally, i.e., the display screen is upward, and the direction of the plane can be referred to Figure 3 .

[0047] As an exemplary embodiment of the present disclosure, the surface of the glass cover plate 4 for bonding with the middle frame 7 can be covered with an ink layer, and the side surface and the surface close to the display panel of the glass cover plate 4 are first coated with an ink layer, and then dispensing is performed on the ink layer. In this way, the ink layer can increase the bonding effect, and thus meet the bonding requirements.

[0048] Furthermore, the side of the glass cover plate 4 facing away from the display panel can be coated with an anti-fingerprint coating to reduce the adhesion of fingerprints and various stains, and to be waterproof and oil-resistant. Furthermore, when applying the anti-fingerprint coating, it is necessary to mask the adhesive application area. Specifically, the sides of the glass cover plate 4 and the side facing the display panel should be shielded with a mask. The anti-fingerprint coating is then applied to the outer surface of the glass cover plate 4 to prevent any degradation of the adhesive bond.

[0049] Among them, reference Figure 4 There may be a gap between the inner wall of the middle frame 7 and the edge area 1 to form a safe distance to prevent the middle frame 7 and the edge area 1 from colliding and being damaged during installation and use.

[0050] The above-mentioned mobile terminal can be a wearable device, such as a bracelet, a watch and other devices. Through the above-mentioned arrangement, the visual area can be increased and the use effect can be improved while the overall size of the wearable device remains the same.

[0051] According to another aspect of the present disclosure, a method for bonding a display screen module is provided, which is used to bond the display screen module to the middle frame 7 of a terminal device. The display screen module is the above-mentioned display screen module, and the glass cover plate 4 protrudes laterally from the display panel. The method may include: bonding the portion of the glass cover plate 4 protruding from the display panel to the middle frame 7 through a suspended glue dispensing process, so that the display screen module is fixed to the terminal device. Due to the presence of a vertical glue dispensing surface, in order to prevent the glue from sliding downward, a suspended glue dispensing process is required to enhance the sealing effect of the bonding. Using buffer glue to fill between the glass cover plate 4 and the middle frame 7 can protect the display screen from being easily broken, reduce maintenance costs, and make the product more durable.

[0052] Furthermore, an L-shaped step 71 is formed on the end of the inner wall of the middle frame 7 near the glass cover plate 4. The bonding method may include bonding the side surface and the surface near the display panel of the glass cover plate 4 to the step 71 of the middle frame 7. In this way, the adhesive surface is distributed on the side surface and the surface near the display panel of the glass cover plate 4, which can reduce the bonding width of the surface near the display panel of the glass cover plate 4, thereby reducing the bezel width of the mobile terminal.

[0053] Furthermore, before bonding the portion of the glass cover plate 4 protruding from the display panel to the middle frame 7, the bonding method may further include applying ink to the side surfaces of the glass cover plate 4 and the surface closest to the display panel. This ink enhances the bonding effect, making the glass cover plate 4 and the middle frame 7 more securely bonded. This method is simple to operate and provides a good sealing effect.

[0054] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the present disclosure. 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 common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0055] 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 can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display screen module, comprising a display panel having an edge region (1), a flexible circuit board (3) connected to the edge region (1) via a connecting portion (2), and a glass cover (4) covering the display panel, characterized in that: The connecting portion (2) is strip-shaped and is in multiple numbers, and the multiple connecting portions (2) are arranged at intervals in a first direction along the edge region (1); Wherein, the ratio of the size of at least part of the connecting portion (2) in a second direction perpendicular to the first direction to the size in the first direction is less than or equal to 0.

5.

2. The display screen module according to claim 1, wherein: The routing area of ​​the wire (6) connected to the connecting portion (2) is constructed in a fan shape, and a plurality of the wires (6) are radially arranged along the center of the fan shape.

3. The display screen module according to claim 2, wherein: Each of the conductive wires (6) extends along the extension direction of the corresponding connecting portion (2).

4. The display screen module according to claim 3, wherein: The plurality of connecting portions (2) are in the shape of quadrilaterals, one set of opposite sides of all the quadrilaterals respectively extend along the first direction, and another set of opposite sides of at least some of the quadrilaterals respectively tilt towards the second direction.

5. The display screen module according to claim 4, wherein: The extension directions of the multiple connecting portions (2) are symmetrically distributed along the center line of the flexible circuit board (3).

6. The display screen module according to claim 4, wherein: The multiple connecting portions (2) are in the shape of a parallelogram, and the other set of opposite sides of each parallelogram respectively extends along the extension direction of the corresponding conductive wire (6).

7. The display screen module according to claim 1, wherein: The area of ​​each connecting portion (2) is the same.

8. A mobile terminal, characterized in that: The mobile terminal comprises a display screen module according to any one of claims 1 to 7, and a middle frame (7) arranged on the side of the display panel and connected to the glass cover plate (4), an L-shaped step (71) is formed at the end of the inner wall of the middle frame (7) close to the glass cover plate (4), and the glass cover plate (4) is bonded to the step (71).

9. The mobile terminal according to claim 8, wherein: A glue layer (8) is provided between the side surface of the glass cover plate (4) and the side close to the display panel and the two sides of the step (71).

10. The mobile terminal according to claim 8, wherein: The surface of the glass cover plate (4) for bonding with the middle frame (7) is covered with an ink layer.

11. The mobile terminal according to any one of claims 8 to 10, characterized in that: The mobile terminal is a wearable device.

12. A method for bonding a display screen module, for bonding a display screen module to a middle frame (7) of a terminal device, characterized in that: The display screen module is a display screen module according to any one of claims 1 to 7, the glass cover plate (4) protrudes laterally from the display panel, and the method comprises: The portion of the glass cover plate (4) protruding from the display panel is bonded to the middle frame (7) by a suspension dispensing process.

13. The method for bonding a display screen module according to claim 12, wherein: An L-shaped step (71) is formed on the end of the inner wall of the middle frame (7) close to the glass cover plate (4), and the method comprises: The side surface of the glass cover plate (4) and the surface close to the display panel are bonded to the step (71) of the middle frame (7).

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