Display module glue sealing method, display module and terminal
By using liquid glue to form soft glue and cover the hard glue during the display module sealing process, the problem of easy breakage of the display module caused by excessive glue hardness in the prior art is solved, and a higher service life is achieved.
Patent Information
- Application Number
- CN202411745345.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2044-11-29
AI Technical Summary
The glue used by existing display modules when sealing glue is too hard and cannot effectively absorb external impact kinetic energy, resulting in easy breakage of the cables and flat cables, affecting the service life of the display module.
A display module sealing method is adopted to form a soft plastic by pouring liquid glue into the molding cavity and covering the hard plastic on it to ensure that the conductive connection is protected by the soft plastic, and the display mechanism and the soft plastic are covered by the hard plastic.
Effectively absorb external impact kinetic energy, reduce the chance of conductive connections breaking, and improve the service life of the display module.
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Figure CN119747180A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of display module sealing, and in particular to a display module sealing method, a display module and a terminal. Background Art
[0002] At present, in order to meet the requirements of the whole assembly, the display modules (screens) of electronic terminals such as mobile phones and tablets are sealed with glue with a higher Shore hardness. However, the hardness of the glue with a higher Shore hardness after curing is equivalent to that of engineering plastics, which is too high for the wiring and flat cable areas. When the display module is impacted by the outside world, the glue with a higher hardness cannot effectively absorb the impact kinetic energy, which can easily cause the wiring and flat cable to break and fail, thus affecting the service life of the display module. Summary of the invention
[0003] In view of the above, it is necessary to provide a display module sealing method, a display module and a terminal to increase the service life of the display module.
[0004] The embodiment of the present application provides a display module sealing method for sealing a display module, wherein the display module includes a conductive connector and a glass panel and a display mechanism stacked in sequence, wherein the display mechanism includes a stacked display component and a support component, wherein the display component is stacked on the glass panel, wherein one end of the conductive connector is connected to the display component, and the other end of the conductive connector is bent and connected to the support component to form a receiving hole, wherein the display module sealing method includes the following steps: sealing the display module in a first fixture so that the display mechanism and the inner side wall of the first fixture form a first molding cavity ; Pour the first liquid glue into the first molding cavity so that the first liquid glue wraps the side wall of the display mechanism and flows from the first molding cavity into the receiving hole; solidify the first liquid glue to form a first soft glue part; seal the display module formed with the first soft glue part in a second fixture so that the first soft glue part and the display mechanism form a second molding cavity with the inner wall of the second fixture; pour the second liquid glue into the second molding cavity so that the second liquid glue covers the display mechanism and the first soft glue part; solidify the second liquid glue to form a hard glue part.
[0005] The display module sealing method of the embodiment of the present application forms a first soft glue part and a second soft glue part by respectively pouring a first liquid glue and a second liquid glue into a first molding cavity and a second molding cavity, and the first liquid glue wraps the side wall of the display mechanism, and the second liquid glue covers the display mechanism and the first soft glue part. After the glue pouring molding, the conductive connector of the display module is wrapped by the first soft glue part, and the display mechanism and the first soft glue part are covered by the hard glue part. The hard glue part can meet the assembly requirements of the display module, and the conductive connector area is protected by the first soft glue part. When the display module is subjected to external impact, the first soft glue part can effectively absorb the impact kinetic energy, reducing the probability of the conductive connector breaking and failing, thereby increasing the service life of the display module.
[0006] In some embodiments, the first molding cavity includes a side molding cavity; "the display mechanism and the inner side wall of the first jig form a first molding cavity" includes: a side wall of the display mechanism and an inner side wall of the first jig form a side molding cavity; "the first liquid glue wraps the side wall of the display mechanism" includes: the first liquid glue wraps a side wall of the display mechanism.
[0007] In some embodiments, the first molding cavity also includes two arc-shaped molding cavities, and the two arc-shaped molding cavities are respectively connected to the two ends of the side molding cavity, and the height of the arc-shaped molding cavity is smaller than the side molding cavity; "the display mechanism and the inner side wall of the first jig form a first molding cavity" includes: the two arc-shaped corner side walls of the display component respectively form two arc-shaped molding cavities with the two arc-shaped corner inner side walls of the first jig; "the first liquid glue wraps the side wall of the display mechanism" also includes: the first liquid glue also wraps the two arc-shaped corner side walls of the display component.
[0008] In some embodiments, the display mechanism also includes three side walls connected in sequence to form a U-shaped side wall; the second molding cavity includes a U-shaped molding cavity and an annular molding cavity that are connected; "the first soft rubber part and the display mechanism both form a second molding cavity with the inner wall of the second jig" includes: the upper surface of the first soft rubber part and at least part of the upper surface of the supporting component both form the annular molding cavity with the top wall of the second jig; the three side walls of the display mechanism connected in sequence and the three side walls of the second jig form the U-shaped molding cavity; "the second liquid glue covers the display mechanism and the first soft rubber part" includes: the second liquid glue covers the upper surface of the first soft rubber part and part of the upper surface of the supporting component, and wraps the U-shaped side wall of the display mechanism.
[0009] In some embodiments, the side wall of the support component has two side recesses, and the support component has two through holes, which are respectively connected to the two side recesses to form two limiting glue pulling cavities; the display module sealing method also includes: sealing the display module in a third fixture so that the two limiting glue pulling cavities of the support component and the inner side wall of the third fixture form a limiting glue pulling molding cavity; pouring the third liquid glue into the limiting glue pulling molding cavity so that the third liquid glue fills the two limiting glue pulling cavities of the support component and extends to wrap part of the side wall of the display mechanism, so as to limit the first liquid glue when it is subsequently poured into the first molding cavity; curing the third liquid glue to form a second soft glue part.
[0010] In some embodiments, the top of the first jig has a plurality of spaced protrusions, so that after the first liquid glue is poured into the first molding cavity and solidified, the first soft glue part forms a plurality of spaced grooves, and when the second liquid glue is poured into the second molding cavity, the second liquid glue fills the grooves.
[0011] The embodiment of the present application also provides a display module, which includes a glass panel, a display mechanism, a conductive connector, a first soft plastic component and a hard plastic component; the display mechanism is stacked on the glass panel, the display mechanism includes a stacked display component and a support component, and the display component is stacked on the glass panel; one end of the conductive connector is connected to the display component, and the other end of the conductive connector is bent and connected to the support component to form a storage hole; the first soft plastic component wraps the side wall of the display mechanism and fills the storage hole; the hard plastic component covers the display mechanism and the first soft plastic component.
[0012] The display module of the embodiment of the present application is provided with a conductive connecting part wrapped by a first soft plastic part, and the display mechanism and the first soft plastic part are covered by a hard plastic part. The hard plastic part can meet the assembly requirements of the display module, and the conductive connecting part area is protected by the first soft plastic part. When the display module is subjected to external impact, the first soft plastic part can effectively absorb the impact kinetic energy and reduce the probability of the conductive connecting part breaking and failing, thereby improving the service life of the display module.
[0013] In some embodiments, the first soft rubber member includes a strip-shaped soft rubber portion, and the strip-shaped soft rubber portion wraps a side wall of the display mechanism and fills the receiving hole.
[0014] In some embodiments, the first soft rubber part further includes two arc-shaped soft rubber parts, and the two arc-shaped soft rubber parts respectively wrap two arc-shaped corner side walls of the display component; and two ends of the strip-shaped soft rubber part are respectively connected to the two arc-shaped soft rubber parts.
[0015] In some embodiments, the hard rubber part includes an annular hard rubber part and a U-shaped hard rubber part; the annular hard rubber part covers the upper surface of the first soft rubber part and at least part of the upper surface of the supporting component; the U-shaped hard rubber part is connected between the annular hard rubber part and the glass panel, and wraps the side walls of the display mechanism that are connected in sequence on three sides.
[0016] In some embodiments, the side wall of the support component has two side recesses, and the support component has two through holes, which are respectively connected to the two side recesses to form two limiting glue cavities; the display module also includes a second soft rubber component, which fills the two limiting glue cavities and extends and wraps part of the side wall of the display mechanism to connect with the strip-shaped soft rubber part.
[0017] In some embodiments, the hardness range of the first soft plastic part is Shore 60HA-65HA, the hardness range of the second soft plastic part is Shore 40HA-45HA, and the hardness of the hard plastic part is greater than or equal to Shore 75HD.
[0018] In some embodiments, the strip-shaped soft rubber portion is formed with a plurality of grooves arranged at intervals, and the annular hard rubber portion fills the grooves.
[0019] The embodiment of the present application also provides a terminal, including a middle frame and the display module as described above, wherein the display module is arranged in the middle frame, and there is an avoidance space between the middle frame and the corner part of the display module.
[0020] The terminal of the embodiment of the present application is provided with a display module including a first soft plastic part and a hard plastic part, which is conducive to improving the service life of the display module, and further to improving the service life of the terminal. In addition, when the terminal falls or is impacted, the corner position of the middle frame is prone to deformation and squeeze the display module, which is easy to cause damage to the display module. By providing an avoidance space between the middle frame and the corner part of the display module, the deformed part of the middle frame can be accommodated when the corner position of the middle frame is deformed due to impact, avoiding the deformed part of the middle frame from squeezing the display module and causing damage to the display module, which is conducive to further improving the service life of the terminal.
[0021] In some embodiments, the distance between the middle frame and the corner portion of the display module is 0.5 mm-1 mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the three-dimensional structure of a display module provided in an embodiment of the present application.
[0023] Figure 2 for Figure 1 The display module is shown in a cross-sectional view along the II-II direction.
[0024] Figure 3 for Figure 1 The three-dimensional structure diagram of the display module after removing the hard plastic parts is shown.
[0025] Figure 4 for Figure 3 Schematic enlargement of region IV.
[0026] Figure 5 for Figure 1 The schematic diagram of the exploded structure of the display module is shown.
[0027] Figure 6 for Figure 5 The enlarged schematic diagram of the display module in area VI is shown.
[0028] Figure 7 A flow chart of a display module sealing method provided in an embodiment of the present application.
[0029] Figure 8 A schematic structural diagram of a first fixture for sealing a display module provided in one embodiment of the present application.
[0030] Fig. 9 for Figure 8 A partial cross-sectional schematic diagram of the side molding cavity and the arc molding cavity of the first fixture shown in FIG.
[0031] Fig.10 A schematic diagram of the three-dimensional structure of a terminal provided in an embodiment of the present application.
[0032] Fig.11 for Fig.10 The terminal is shown in a cross-sectional view along the XI-XI direction.
[0033] Main component symbols Terminal 2000, display module 100, glass panel 10, display mechanism 20, display assembly 21, first optical adhesive layer 211, polarizer 212, second optical adhesive layer 213, touch feedback member 214, display panel 215, arc-shaped corner side wall 216, support assembly 22, first adhesive tape layer 221, metal plate 222, foam layer 223, second adhesive tape layer 224, metal part 225, limit adhesive cavity 2 26, side recess 2261, through hole 2262, U-shaped side wall 23, conductive connector 30, storage hole 31, first soft rubber part 40, strip soft rubber part 41, groove 411, arc-shaped soft rubber part 42, hard rubber part 50, annular hard rubber part 51, U-shaped hard rubber part 52, second soft rubber part 60, middle frame 700, avoidance space 710, first fixture 1000, side molding cavity 1001, arc-shaped molding cavity 1002. DETAILED DESCRIPTION
[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0035] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application 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 therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Similarly, the terms "upper" and "lower" are only used for descriptive purposes, or are described in the state in which the drawings of the current specification are placed, and cannot be understood as indicating or implying the actual direction of the technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0037] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0038] See also Figure 1 and Figure 8 The embodiment of the present application provides a display module 100, which is applied to a terminal 2000, wherein the terminal 2000 can be a mobile phone, a tablet computer, a smart watch, etc. For ease of understanding and explanation, the embodiment of the present application takes the terminal 2000 as a mobile phone as an example for explanation. Obviously, this is not a limitation of the embodiment of the present application.
[0039] See also Figure 1 and Figure 2 In this embodiment, the display module 100 includes a glass panel 10 , a display mechanism 20 , a conductive connecting member 30 , a first soft plastic member 40 and a hard plastic member 50 .
[0040] The display mechanism 20 is stacked on the glass panel 10 . The display mechanism 20 includes a stacked display component 21 and a support component 22 . The display component 21 is stacked on the glass panel 10 , and the support component 22 is located on the upper surface of the display component 21 .
[0041] One end of the conductive connecting member 30 is connected to the display assembly 21 , and the other end of the conductive connecting member 30 is bent and connected to the supporting assembly 22 to form a receiving hole 31 .
[0042] The first soft plastic member 40 wraps the side wall of the display mechanism 20 and fills the receiving hole 31. The hard plastic member 50 covers the display mechanism 20 and the first soft plastic member 40.
[0043] Specifically, the conductive connector 30 can be a flat cable or a flat cable. The first soft plastic component 40 is formed by curing a first liquid glue (not shown) with a lower Shore hardness after being filled with glue. The hard plastic component 50 is formed by curing a second liquid glue (not shown) with a higher Shore hardness after being filled with glue.
[0044] In this way, the display module 100 of the embodiment of the present application is provided with a conductive connector 30 wrapped by the first soft plastic part 40, and the display mechanism 20 and the first soft plastic part 40 are covered by the hard plastic part 50. The hard plastic part 50 can meet the assembly requirements of the display module 100, and the conductive connector 30 area is protected by the first soft plastic part 40. When the display module 100 is impacted by the outside world, the first soft plastic part 40 can effectively absorb the impact kinetic energy, reduce the probability of the conductive connector 30 breaking and failing, and thus improve the service life of the display module 100. In this embodiment, the display assembly 21 includes a first optical adhesive layer 211, a polarizer 212, a second optical adhesive layer 213, a touch feedback member 214 and a display panel 215, which are stacked in sequence, and the first optical adhesive layer 211 is located between the polarizer 212 and the glass panel 10. The support assembly 22 includes a first tape layer 221, a metal plate 222, a foam layer 223, a second tape layer 224 and a metal member 225 which are stacked in sequence, and the first tape layer 221 is located between the display panel 215 and the metal plate 222. One end of the conductive connector 30 is connected to the touch feedback member 214 and the display panel 215, and the other end of the conductive connector 30 is bent and inserted between the foam layer 223 and the second tape layer 224, and then extends through the second tape layer 224 and the metal member 225 to the side of the metal member 225 away from the second tape layer 224, so as to facilitate connection with a processor (not shown) of the terminal 2000.
[0045] The metal part 225 can be made of one or more materials selected from iron, titanium, aluminum, and steel. The metal part 225 is in a square ring shape. Correspondingly, the hard plastic part 50 and the first soft plastic part 40 can both be in a square ring shape. The hard plastic part 50 covers the upper surface of the metal part 225 from the upper surface of the first soft plastic part 40. Optionally, the hard plastic part 50 covers a portion of the upper surface of the metal part 225, and another portion of the upper surface of the metal part 225 is exposed, so as to be used for welding small metal parts later.
[0046] The first optical adhesive layer 211 is used to bond the polarizer 212 and the glass panel 10. The polarizer 212 is used to scatter light so that the user can see the content displayed on the display panel 215. The second optical adhesive layer 213 is used to bond the touch feedback member 214 and the polarizer 212. The touch feedback member 214 uses pressure sensing to collect touch signals. The display panel 215 is used for picture display. The first tape layer 221 is used to fix the metal plate 222. The metal plate 222 is used to protect the touch feedback member 214 and the display panel 215. The foam layer 223 is used to protect the portion of the conductive connecting member 30 inserted between the foam layer 223 and the second tape layer 224. The second tape layer 224 is used to fix the metal member 225. The metal member 225 is used to protect the internal structure of the entire display mechanism 20, and a hook (not shown) for assembling the terminal 2000 can be welded on the metal member 225.
[0047] During use of the display module 100, the touch feedback member 214 receives the user's touch signal and then feeds it back to the processor through the conductive connection member 30. The processor feeds the processed signal back to the display panel 215 through the conductive connection member 30 for display, thereby achieving the use effect.
[0048] Please refer to Figure 3 , Figure 4 and Figure 5 In some other embodiments, the first soft rubber part 40 may not be in a square ring shape. Specifically, the first soft rubber part 40 includes a strip-shaped soft rubber part 41, and the strip-shaped soft rubber part 41 wraps a side wall of the display mechanism 20. Specifically, the strip-shaped soft rubber part 41 wraps a side wall of the display mechanism 20 protruding with the conductive connector 30, thereby wrapping the conductive connector 30 and filling the receiving hole 31. When the display module 100 is impacted by the outside, the strip-shaped soft rubber part 41 outside the conductive connector 30 and the strip-shaped soft rubber part 41 inside the receiving hole 31 can effectively absorb the impact kinetic energy, reduce the probability of the conductive connector 30 breaking and failing, and thus improve the service life of the display module 100.
[0049] Please refer to Figure 6In some other embodiments, the first soft rubber part 40 can be formed by multiple sections of rubber. Specifically, the first soft rubber part 40 further includes two arc-shaped soft rubber parts 42, and the two arc-shaped soft rubber parts 42 respectively wrap the two arc-shaped corner side walls 216 of the display component 21; the two ends of the strip-shaped soft rubber part 41 are respectively connected to the two arc-shaped soft rubber parts 42.
[0050] Specifically, the curved soft rubber portion 42 is located at the corner of the display assembly 21, and the upper surface of one side of the glass panel 10 receives the curved soft rubber portion 42. Since the area of the display module 100 that is more likely to fail due to impact also includes the corner area, by providing the curved soft rubber portion 42 to wrap the curved corner side wall 216 of the display assembly 21, the impact kinetic energy can be effectively absorbed, and the probability of failure due to impact at the corner of the display module 100 can be reduced, thereby facilitating the service life of the display module 100.
[0051] Please refer to Figure 5 and Figure 6 In this embodiment, the hard plastic part 50 includes an annular hard plastic part 51 and a U-shaped hard plastic part 52. The annular hard plastic part 51 covers the upper surface of the first soft plastic part 40 and at least part of the upper surface of the supporting assembly 22; the U-shaped hard plastic part 52 is connected between the annular hard plastic part 51 and the glass panel 10, and wraps the three sides of the display mechanism 20 connected in sequence.
[0052] Specifically, the U-shaped hard plastic part 52 is located below the annular hard plastic part 51 and connected to the annular hard plastic part 51. The annular hard plastic part 51 covers the upper surface of the first soft plastic part 40 and the edge area of the upper surface of the support assembly 22. The U-shaped hard plastic part 52 wraps the other three side walls of the display mechanism 20 except for the protruding conductive connector 30. In this way, the annular hard plastic part 51 and the U-shaped hard plastic part 52 effectively support and protect the first soft plastic part 40 and the display mechanism 20, ensure the assembly requirements of the display module 100, and improve the service life of the display module 100.
[0053] In this embodiment, the side wall of the support assembly 22 has two side recesses 2261, and the support assembly 22 has two through holes 2262. The two through holes 2262 are respectively connected to the two side recesses 2261 to form two limit glue cavities 226. The display module 100 also includes a second soft plastic member 60, which fills the two limit glue cavities 226 and extends and wraps a part of the side wall of the display mechanism 20 to connect with the strip-shaped soft plastic portion 41.
[0054] Specifically, the two side recesses 2261 are respectively located at two corners of the support component 22 close to the conductive connector 30 , and the two side recesses 2261 are formed by the inward recess of the second tape layer 224 . The two through holes 2262 are both opened on the metal part 225 and connected to the corresponding side recesses 2261 .
[0055] When the display module 100 is filled with glue, the third liquid glue (not shown) is first poured into the two limit glue pulling cavities 226, so that the third liquid glue wraps the side wall of the display mechanism 20 near the corner of the conductive connector 30, and the first liquid glue is poured into the second soft glue part 60 after the third liquid glue is solidified to form the first soft glue part. Since the side walls of the various parts of the support component 22 are uneven, when the first liquid glue is poured, the first liquid glue is easy to overflow from the gap of the side wall of the support component 22. By setting two second soft glue parts 60, it is possible to block at both ends when the first liquid glue is poured, thereby improving the fullness of the first liquid glue after pouring, and further improving the wrapping and protection effect of the first soft glue part on the conductive connector 30. In addition, the second soft glue part 60 can also protect the two corners of the support component 22 near the conductive connector 30, which is conducive to improving the service life of the display module 100. The through hole 2262 is provided to facilitate the use of a glue needle (not shown) to inject the third liquid glue into the side recess 2261, and the through hole 2262 also has the function of fixing the second soft glue component 60 to prevent the second soft glue component 60 from escaping from the limiting glue pulling cavity 226 when the display module 100 is demolded.
[0056] In this embodiment, the hardness of the first soft plastic part 40 may range from Shore 60HA to Shore 65HA, the hardness of the second soft plastic part 60 may range from Shore 40HA to Shore 45HA, and the hardness of the hard plastic part 50 may be greater than or equal to Shore 75HD.
[0057] In this way, the hard plastic part 50 can still be kept within the hardness range of engineering plastics, thereby ensuring that the display module 100 meets the assembly requirements. The first soft plastic part 40 and the second soft plastic part 60 are within a reasonable hardness range and have good elasticity, so that the conductive connector 30 and the two corners of the support assembly 22 close to the conductive connector 30 can be protected respectively, thereby facilitating the improvement of the service life of the display module 100.
[0058] In this embodiment, the thermal expansion coefficient of the first soft plastic part 40 is in the range of 50ppm-120ppm. Since the first soft plastic part 40 is wrapped around the conductive connector 30, if the thermal expansion coefficient of the first soft plastic part 40 is too high, the first soft plastic part 40 pulls the conductive connector 30 to a large extent when it is thermally expanded, which easily causes the conductive connector 30 to break. By setting the first soft plastic part 40 to have a smaller thermal expansion coefficient, the first soft plastic part 40 pulls the conductive connector 30 to a smaller extent when it is thermally expanded, thereby reducing the risk of the conductive connector 30 breaking, which is beneficial to improving the service life of the display module 100.
[0059] Please refer to Figure 2In some other embodiments, the strip-shaped soft rubber part 41 may be formed with a plurality of grooves 411 arranged at intervals, and the annular hard rubber part 51 fills the grooves 411. The provision of the grooves 411 increases the contact area and the bonding force between the strip-shaped soft rubber part 41 and the annular hard rubber part 51, thereby improving the firmness of the strip-shaped soft rubber part 41 and the annular hard rubber part 51 after bonding.
[0060] Please refer to Figure 7 , Figure 8 and Fig. 9 The embodiment of the present application also provides a display module sealing method for sealing the above-mentioned display module 100, wherein the display module 100 includes a conductive connector 30 and a glass panel 10 and a display mechanism 20 which are stacked in sequence, wherein the display mechanism 20 includes a stacked display component 21 and a support component 22, wherein the display component 21 is stacked on the glass panel 10, wherein one end of the conductive connector 30 is connected to the display component 21, and the other end of the conductive connector 30 is bent and connected to the support component 22 to form a receiving hole 31, and the display module sealing method includes the following steps: In step S1 , the display module 100 is sealed in a first fixture 1000 , so that the display mechanism 20 and the inner wall of the first fixture 1000 form a first molding cavity (not shown).
[0061] Step S2 , pouring the first liquid glue into the first molding cavity, so that the first liquid glue wraps the side wall of the display mechanism 20 , and the first liquid glue flows from the first molding cavity into the receiving hole 31 .
[0062] Specifically, a glue injection needle is inserted from the first fixture 1000 into the first molding cavity, thereby injecting the first liquid glue into the first molding cavity.
[0063] Step S3 , curing the first liquid glue to form a first soft glue member 40 .
[0064] Specifically, the first liquid glue may be cured by a UV light curing device (not shown) to form the first soft glue member 40 .
[0065] In step S4 , the display module 100 formed with the first soft plastic member 40 is sealed in a second fixture (not shown) so that the first soft plastic member 40 and the display mechanism 20 form a second molding cavity (not shown) with the inner wall of the second fixture.
[0066] Specifically, the structure of the second fixture can be generally similar to the first fixture 1000 , but partially different. For example, the second molding cavity is different from the first molding cavity and is set according to the shapes of the hard plastic part 50 to be molded and the first soft plastic part 40 .
[0067] Step S5 , pouring the second liquid glue into the second molding cavity, so that the second liquid glue covers the display mechanism 20 and the first soft glue component 40 .
[0068] Specifically, a glue injection needle is inserted from the second fixture into the second molding cavity, thereby injecting the second liquid glue into the second molding cavity.
[0069] Step S6 , curing the second liquid glue to form a hard glue member 50 .
[0070] Specifically, the second liquid glue can be cured by a UV light curing device (not shown) to form a hard glue member 50. The first liquid glue and the second liquid glue have different ingredients and ratios.
[0071] The display module sealing method of the embodiment of the present application is to respectively inject the first liquid glue and the second liquid glue into the first molding cavity and the second molding cavity to form the first soft glue part 40 and the hard glue part 50, and the first liquid glue wraps the side wall of the display mechanism 20, and the second liquid glue covers the display mechanism 20 and the first soft glue part 40. Then, the conductive connecting part 30 of the display module 100 after the glue injection molding is wrapped by the first soft glue part 40, and the hard glue part 50 covers the upper surface of the display mechanism 20 and the upper surface of the first soft glue part 40. The hard glue part 50 can meet the assembly requirements of the display module 100, and the conductive connecting part 30 area is protected by the first soft glue part 40. When the display module 100 is impacted by the outside, the first soft glue part 40 outside the conductive connecting part 30 and the first soft glue part 40 in the storage hole 31 can effectively absorb the impact kinetic energy, reducing the probability of the conductive connecting part 30 breaking and failing, thereby improving the service life of the display module 100.
[0072] In this embodiment, the first molding cavity of the first jig 1000 can be strip-shaped, so that the first soft rubber part 40 after molding and curing is strip-shaped, and the first soft rubber part 40 after molding and curing is stably sealed on the side of the display mechanism 20 protruding with the conductive connecting part 30, and the first soft rubber part 40 after molding and curing wraps the conductive connecting part 30 and protects the conductive connecting part 30. In some other embodiments, the first molding cavity of the first jig 1000 can also be annular, so that the first soft rubber part 40 is annular, and the first soft rubber part 40 covers the peripheral side of the display mechanism 20 and wraps the conductive connecting part 30, which is not specifically limited in the embodiment of the present application.
[0073] In some embodiments, Fig. 9 As shown, the first molding cavity includes a side molding cavity 1001; in step S1, the display mechanism 20 and the inner side wall of the first fixture 1000 form the first molding cavity specifically including: a side wall of the display mechanism 20 and an inner side wall of the first fixture 1000 form the side molding cavity 1001. In step S2, the step of wrapping the side wall of the display mechanism 20 with the first liquid glue specifically includes: wrapping the side wall of the display mechanism 20 with the first liquid glue.
[0074] Since only one of the four peripheral side walls of the display mechanism 20 is provided with a conductive connector 30, the first liquid glue can be used to seal only one side of the display mechanism 20 having the conductive connector 30. Specifically, the portion of the conductive connector 30 protruding from the side wall of the display mechanism 20 is received in the side molding cavity 1001. The side molding cavity 1001 is in a strip shape. When the first liquid glue is poured into the side molding cavity 1001 and solidified, a strip-shaped soft glue portion 41 of the first soft glue member 40 matching the shape of the side molding cavity 1001 can be formed. The strip-shaped soft glue portion 41 wraps the side wall of the display mechanism 20 protruding with the conductive connector 30, thereby wrapping the conductive connector 30. When the display module 100 is impacted by the outside world, the strip-shaped soft glue portion 41 can effectively absorb the impact kinetic energy, reduce the probability of the conductive connector 30 breaking and failing, and thus improve the service life of the display module 100.
[0075] Furthermore, the first molding cavity further includes two arc-shaped molding cavities 1002 , which are respectively connected to two ends of the side molding cavity 1001 , and the height of the arc-shaped molding cavity 1002 is smaller than that of the side molding cavity 1001 .
[0076] In step S1 , the display mechanism 20 and the inner side wall of the first fixture 1000 form a first molding cavity, specifically including: two arc-shaped corner side walls 216 of the display component 21 and two arc-shaped corner inner side walls (not shown) of the first fixture 1000 respectively form two arc-shaped molding cavities 1002 .
[0077] In step S2 , the step of wrapping the side wall of the display mechanism 20 with the first liquid glue specifically includes: the first liquid glue also wraps the two arc-shaped corner side walls 216 of the display component 21 .
[0078] Specifically, the two arc-shaped molding cavities 1002 are relatively small in size. When the first liquid glue is poured into the side molding cavity 1001, the first liquid glue overflows from the side molding cavity 1001 to the two arc-shaped molding cavities 1002. When the first liquid glue is solidified, two arc-shaped soft glue portions 42 of the first soft glue member 40 can be formed. Since the area of the display module 100 that is more likely to fail due to impact also includes the corner area, by setting the first liquid glue to also wrap the two arc-shaped corner side walls 216 of the display component 21, the impact kinetic energy can be effectively absorbed after the arc-shaped soft glue portion 42 is formed, and the probability of failure due to impact at the corner of the display module 100 is reduced, which is conducive to improving the service life of the display module 100.
[0079] In this embodiment, the first liquid glue only wraps the two arc-shaped corner side walls 216 of the display component 21 , and does not wrap the corner portion of the support component 22 , thereby leaving space for wrapping the second liquid glue at the two corner portions of the support component 22 .
[0080] In this embodiment, the display mechanism 20 also includes three side walls that are sequentially connected to form a U-shaped side wall 23; the second molding cavity includes a U-shaped molding cavity (not shown) and an annular molding cavity (not shown) that are connected. In step S4, the first soft plastic part 40 and the display mechanism 20 form the second molding cavity with the inner wall of the second fixture, specifically including: Step S41, the upper surface of the first soft plastic member 40 and at least a portion of the upper surface of the support assembly 22 form an annular molding cavity with the top wall of the second fixture; Step S42 , the three sequentially connected side walls of the display mechanism 20 and the three side walls of the second fixture form a U-shaped cavity.
[0081] In step S5 , the second liquid glue covers the display mechanism 20 and the first soft glue member 40 , specifically including: the second liquid glue covers the upper surface of the first soft glue member 40 and a portion of the upper surface of the support assembly 22 , and wraps the U-shaped side wall 23 of the display mechanism 20 .
[0082] Specifically, the three side walls connected to form the U-shaped side wall 23 are respectively the other three side surfaces of the display mechanism 20 except the side wall protruding with the conductive connector 30. When the second liquid glue is poured into the U-shaped cavity and the annular molding cavity and solidified, the annular hard glue portion 51 and the U-shaped hard glue portion 52 of the hard glue part 50 can be formed, and the annular hard glue portion 51 covers the upper surface of the first soft glue part 40 and the edge area of the upper surface of the support component 22, and the U-shaped hard glue portion 52 wraps the other three side walls of the display mechanism 20 except the side wall protruding with the conductive connector 30. The annular hard glue portion 51 and the U-shaped hard glue portion 52 effectively support and protect the first soft glue part 40 and the display mechanism 20, thereby ensuring the assembly requirements of the display module 100 and improving the service life of the display module 100.
[0083] In this embodiment, the side wall of the support component 22 has two side recesses 2261, and the support component 22 has two through holes 2262. The two through holes 2262 are respectively connected to the two side recesses 2261 to form two limit glue pulling cavities 226. The display module sealing method also includes: In step S7 , the display module 100 is sealed in a third fixture (not shown) so that the two limiting glue drawing cavities 226 of the support component 22 and the inner side wall of the third fixture form a limiting glue drawing molding cavity (not shown).
[0084] Step S8, pouring a third liquid glue (not shown) into the limiting glue-pulling molding cavity, so that the third liquid glue fills the two limiting glue-pulling cavities 226 of the support component 22, and extends to wrap part of the side wall of the display mechanism 20, so as to limit the subsequent pouring of the first liquid glue into the first molding cavity.
[0085] Step S9 , curing the third liquid glue to form a second soft glue member 60 .
[0086] The third liquid glue may be cured by a UV light curing device (not shown) to form the second soft glue member 60 .
[0087] Specifically, the two side recesses 2261 are respectively located at two corners of the support component 22 close to the conductive connector 30 , and the two side recesses 2261 are formed by the inward recess of the second tape layer 224 . The two through holes 2262 are both opened on the metal part 225 and connected to the corresponding side recesses 2261 .
[0088] When the display module 100 is filled with glue, firstly, steps S7-S9 are performed, and the third liquid glue is injected into the limited glue drawing molding cavity by inserting the glue injection needle from the third fixture into the through hole 2262, so that the third liquid glue wraps the side wall of the display mechanism 20 near the corner of the conductive connector 30, and then steps S1-S6 are performed after the third liquid glue is solidified to form the second soft glue part 60. Since the two second soft glue parts 60 are blocked at both ends of the first molding cavity when the first liquid glue is poured, the fullness of the first liquid glue poured into the first molding cavity is improved, thereby improving the wrapping and protection effect of the first soft glue part on the conductive connector 30. In addition, the second soft glue part 60 can also protect the two corners of the support component 22 near the conductive connector 30, which is conducive to improving the service life of the display module 100. The through hole 2262 is provided to facilitate the use of a glue needle (not shown) to inject the third liquid glue into the side recess 2261, and the through hole 2262 also has the function of fixing the second soft glue component 60 to prevent the second soft glue component 60 from escaping from the limiting glue pulling cavity 226 when the display module 100 is demolded.
[0089] In this embodiment, the top of the first jig 1000 has a plurality of spaced protrusions (not shown) so that after the first liquid glue is poured into the first molding cavity and solidified, the first soft glue part 40 forms a plurality of spaced grooves 411, and when the second liquid glue is poured into the second molding cavity, the second liquid glue fills the grooves 411.
[0090] In this way, it is convenient to form a plurality of grooves 411 arranged at intervals on the side wall where the first soft plastic part 40 contacts the hard plastic part 50 after molding. The arrangement of the grooves 411 increases the contact area and bonding force between the first soft plastic part 40 and the hard plastic part 50, thereby improving the firmness of the first soft plastic part 40 and the hard plastic part 50 after bonding.
[0091] Please refer to Fig.10 and Fig.11 The embodiment of the present application also provides a terminal 2000, including a middle frame 700 and the display module 100 as described above, the display module 100 is arranged in the middle frame 700, and there is an avoidance space 710 between the corner part of the middle frame 700 and the display module 100.
[0092] The terminal 2000 of the embodiment of the present application is provided with a display module 100 including a first soft plastic part 40 and a hard plastic part 50, which is conducive to improving the service life of the display module 100, and further conducive to improving the service life of the terminal 2000. In addition, when the terminal 2000 falls or is impacted, the corner position of the middle frame 700 is prone to deformation and squeeze the display module 100, thereby easily causing damage to the display module 100. By providing an avoidance space 710 between the middle frame 700 and the corner part of the display module 100, the deformed part of the middle frame 700 can be accommodated when the corner position of the middle frame 700 is deformed due to impact, thereby preventing the deformed part of the middle frame 700 from squeezing the display module 100 and causing damage to the display module 100, thereby further improving the service life of the terminal 2000.
[0093] In this embodiment, the avoidance space 710 is formed between the inner wall at the corner of the middle frame 700 and the outer wall at the corner of the display mechanism 20 , and the middle frame 700 is bonded to the side wall of the glass panel 10 and the side of the hard plastic component 50 away from the metal component 225 .
[0094] In this embodiment, the distance between the inner side wall at the corner of the middle frame 700 and the outer side wall at the corner of the display module 100 is 0.5 mm-1 mm (i.e., the width of the avoidance space 710), and this distance can ensure that the avoidance space 710 has a suitable size, so that the avoidance space 710 can effectively accommodate the deformed part of the middle frame 700 when the corner of the middle frame 700 is deformed due to impact, and avoid the deformed part of the middle frame 700 from squeezing the display module 100 and causing damage to the display module 100, thereby facilitating the service life of the terminal 2000. In addition, this distance can also prevent the size of the middle frame 700 from being too large, which affects the size and firmness of the middle frame 700 and the display module 100 after assembly.
[0095] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.
[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.
Claims
1. A display module sealing method, used for sealing a display module, characterized in that: The display module includes a conductive connector and a glass panel and a display mechanism stacked in sequence, the display mechanism includes a stacked display component and a support component, the display component is stacked on the glass panel, one end of the conductive connector is connected to the display component, and the other end of the conductive connector is bent and connected to the support component to form a receiving hole, and the display module sealing method includes the following steps: Sealing the display module in a first fixture so that the display mechanism and the inner side wall of the first fixture form a first molding cavity; Filling the first molding cavity with a first liquid glue so that the first liquid glue wraps the side wall of the display mechanism, and the first liquid glue flows from the first molding cavity into the receiving hole; curing the first liquid glue to form a first soft glue part; The display module formed with the first soft plastic part is sealed in a second fixture, so that the first soft plastic part and the display mechanism form a second molding cavity with the inner wall of the second fixture; Pouring a second liquid glue into the second molding cavity so that the second liquid glue covers the display mechanism and the first soft glue part; The second liquid glue is cured to form a hard glue piece.
2. The display module sealing method according to claim 1, characterized in that: The first molding cavity includes a side molding cavity; “The display mechanism and the inner side wall of the first fixture form a first molding cavity” includes: a side wall of the display mechanism and an inner side wall of the first fixture form a side molding cavity; “The first liquid glue wraps a side wall of the display mechanism” includes: the first liquid glue wraps a side wall of the display mechanism.
3. The display module sealing method according to claim 2, characterized in that: The first molding cavity further comprises two arc-shaped molding cavities, the two arc-shaped molding cavities are respectively connected to two ends of the side molding cavity, and the height of the arc-shaped molding cavity is smaller than that of the side molding cavity; “The display mechanism and the inner side wall of the first fixture form a first molding cavity” includes: the two arc-shaped corner side walls of the display assembly and the two arc-shaped corner inner side walls of the first fixture respectively form two arc-shaped molding cavities; "The first liquid glue wraps the side walls of the display mechanism" also includes: the first liquid glue also wraps the two arc-shaped corner side walls of the display component.
4. The display module sealing method according to claim 2, characterized in that: The display mechanism also includes three side walls connected in sequence to form a U-shaped side wall; the second molding cavity includes a U-shaped molding cavity and an annular molding cavity that are connected; “The first soft plastic part and the display mechanism form a second molding cavity with the inner wall of the second fixture” includes: The upper surface of the first soft plastic part and at least a portion of the upper surface of the supporting assembly form the annular molding cavity with the top wall of the second fixture; The three sequentially connected side walls of the display mechanism and the three side walls of the second fixture form the U-shaped cavity; “The second liquid glue covers the display mechanism and the first soft glue part” includes: The second liquid glue covers the upper surface of the first soft glue component and a portion of the upper surface of the supporting component, and wraps the U-shaped side wall of the display mechanism.
5. The display module sealing method according to claim 3, characterized in that: The side wall of the support component has two side depressions, and the support component has two through holes, and the two through holes are respectively connected with the two side depressions to form two limit glue pulling cavities; the display module sealing method also includes: The display module is sealed in a third fixture, so that the two limit glue drawing cavities of the support assembly and the inner side wall of the third fixture form a limit glue drawing molding cavity; Pour the third liquid glue into the limit glue drawing molding cavity, so that the third liquid glue fills the two limit glue drawing cavities of the support assembly and extends to wrap part of the side wall of the display mechanism, so as to limit the position of the first liquid glue when it is subsequently poured into the first molding cavity; The third liquid glue is cured to form a second soft glue piece.
6. The display module sealing method according to claim 1, characterized in that: The top of the first fixture has a plurality of spaced protrusions, so that the first soft plastic part after the first liquid glue is poured into the first molding cavity and solidified forms a plurality of spaced grooves, and when the second liquid glue is poured into the second molding cavity, the second liquid glue fills the grooves.
7. A display module, characterized in that: The display module comprises: Glass panels; A display mechanism, stacked on the glass panel, the display mechanism comprising a stacked display component and a supporting component, the display component being stacked on the glass panel; A conductive connector, one end of which is connected to the display assembly, and the other end of which is bent and connected to the support assembly to form a receiving hole; A first soft plastic member wraps the side wall of the display mechanism and fills the receiving hole; The hard plastic component covers the display mechanism and the first soft plastic component.
8. The display module according to claim 7, wherein: The first soft rubber component includes a strip-shaped soft rubber portion, and the strip-shaped soft rubber portion wraps a side wall of the display mechanism and fills the receiving hole.
9. The display module according to claim 8, wherein: The first soft rubber part also includes two arc-shaped soft rubber parts, and the two arc-shaped soft rubber parts respectively wrap the two arc-shaped corner side walls of the display component; and the two ends of the strip-shaped soft rubber part are respectively connected to the two arc-shaped soft rubber parts.
10. The display module according to claim 8, wherein: The hard plastic part comprises: an annular hard rubber portion, covering the upper surface of the first soft rubber member and at least a portion of the upper surface of the supporting assembly; The U-shaped hard rubber part is connected between the annular hard rubber part and the glass panel, and wraps the side walls of the display mechanism that are connected in sequence on three sides.
11. The display module according to claim 10, wherein: The side wall of the support component has two side depressions, and the support component has two through holes, which are respectively connected to the two side depressions to form two limiting glue pulling cavities; the display module also includes a second soft rubber component, which fills the two limiting glue pulling cavities and extends and wraps part of the side wall of the display mechanism to be connected to the strip-shaped soft rubber part.
12. The display module according to claim 11, wherein: The hardness range of the first soft plastic part is Shaw 60HA-65HA, the hardness range of the second soft plastic part is Shaw 40HA-45HA, and the hardness of the hard plastic part is greater than or equal to Shaw 75HD.
13. The display module according to claim 11, wherein: The strip-shaped soft rubber part is formed with a plurality of grooves arranged at intervals, and the annular hard rubber part fills the grooves.
14. A terminal, characterized in that: It comprises a middle frame and a display module as described in any one of claims 7 to 13, wherein the display module is arranged in the middle frame, and there is an avoidance space between the middle frame and the corner part of the display module.
15. The terminal according to claim 14, characterized in that The distance between the middle frame and the corner portion of the display module is 0.5 mm-1 mm.
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