Glue curing device and display module glue injection system

Abstract

The invention provides a glue curing device and a display module glue injection system, the glue curing device comprises a straight edge area and an arc angle area which are alternately arranged, the glue curing device comprises a first curing unit and a second curing unit, the first curing unit is located in the straight edge area, and the first curing unit at least can move in the width direction of the straight edge area; the second curing units are located in the arc angle areas and located between every two adjacent first curing units. According to the glue curing device, flexible adjustment can be conducted according to the shape and size changes of display module frames of different sizes, and when the display modules of different sizes are faced, the first curing unit can move in the width direction of the straight edge area so as to adapt to the changes of glue paths of the straight edge part; the glue curing effect of the first curing unit located in the straight edge area is ensured, accurate curing of display modules of different sizes can be achieved, the problem of incomplete curing caused by size changes is avoided, and then the process performance is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a glue curing device and a display module glue injection system. Background Art

[0002] Organic Light-Emitting Diode (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the process performance of existing display modules needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a glue curing device and a display module glue injection system to improve the process performance of the display module.

[0005] Based on the above purpose, in a first aspect, a glue curing device is provided, comprising straight edge areas and arc angle areas arranged alternately, the glue curing device comprising:

[0006] A first curing unit, located in the straight edge area, and the first curing unit can move at least along the width direction of the straight edge area;

[0007] The second curing unit is located in the arc angle area and between two adjacent first curing units.

[0008] In certain implementations of the first aspect, the first curing unit includes a plurality of first curing lights arranged at intervals along the length direction of the straight edge region; the second curing unit includes a plurality of groups of second curing lights and a control switch, the distances between the second curing lights of different groups and the center of the arc angle region are different, and the control switch is used to switch the second curing lights of different groups;

[0009] Preferably, the first curing unit and the second curing unit are separately arranged.

[0010] In certain implementations of the first aspect, the second curing unit includes a plurality of second curing lamps arranged in an array;

[0011] Preferably, the second curing unit further comprises a control switch for controlling the second curing light;

[0012] Preferably, within the same arc angle region, the distances between any two adjacent second curing lights are equal.

[0013] In certain implementations of the first aspect, the glue curing device further includes:

[0014] A gantry support, comprising two upright posts and a crossbeam connected between the two upright posts, wherein the length direction of the crossbeam is parallel to the width direction of the straight edge area;

[0015] A sliding block is movably mounted on the cross beam, and the first curing unit is fixedly mounted on the sliding block.

[0016] In certain implementations of the first aspect, the glue curing device includes four of the first curing units and four of the second curing units, and the four of the first curing units and the four of the second curing units are alternately arranged to form a rounded quadrilateral;

[0017] Preferably, the first curing unit and the second curing unit are arranged at intervals along the perimeter direction of the rounded quadrilateral.

[0018] In certain implementations of the first aspect, the first curing light and the second curing light each comprise an ultraviolet curing light;

[0019] Preferably, the first curing light and the second curing light have the same irradiation direction.

[0020] In certain implementations of the first aspect, the ultraviolet curing lamp includes a curing lamp substrate, a lamp bead, and a lens, wherein the lamp bead and the lens are disposed on the same side of the curing lamp substrate, and the lens covers the lamp bead;

[0021] Preferably, the lens is a focusing lens;

[0022] Preferably, the ultraviolet curing lamp further comprises a heat sink, and the heat sink is arranged on a side of the curing lamp substrate away from the lamp bead.

[0023] In a second aspect, a display module glue injection system is also provided, which includes:

[0024] A display module, comprising a display area and a frame area arranged around the display area;

[0025] A glue injection mold, used for injecting glue into the frame area;

[0026] The glue curing device described in any one of the above items is used to cure the glue.

[0027] In certain implementations of the second aspect, the display module includes a display panel and a cover plate, the cover plate is disposed on a display side of the display panel, the glue is located on a side of the cover plate facing the display panel, and the glue curing device is at least located on a side of the display panel facing away from the cover plate;

[0028] Preferably, the display panel comprises a bending portion, and the bending portion is located in the frame area; the glue is at least partially arranged on the inner side and the outer side of the bending portion, and the glue also covers at least a part of the side wall of the display panel.

[0029] In certain implementations of the second aspect, a shape formed by the straight edge region and the arc angle region of the adhesive curing device is consistent with a shape of the border region.

[0030] The above-mentioned glue curing device divides the straight edge area and the arc angle area, and respectively sets a movable first curing unit and a second curing unit located at the arc angle position, so that the device can be flexibly adjusted according to the shape and size changes of the display module frame of different sizes. When facing display modules of different sizes, the first curing unit can move along the width direction of the straight edge area to adapt to the changes in the glue path of the straight edge part, ensuring the curing effect of the glue by the first curing unit located in the straight edge area, and can achieve precise curing for display modules of different sizes, avoiding incomplete curing problems caused by size changes, thereby improving process performance.

[0031] In the above display module glue injection system, the display module, the glue injection mold and the specific glue curing device work together, and after the glue is injected into the frame area of ​​the display module, the glue curing device can cure the glue in time. Since the glue curing device has the ability to adapt to display modules of different sizes, the entire glue injection system can meet the production needs of display modules of various sizes, improve the versatility and flexibility of production, and reduce the cost of redesigning and adjusting the glue injection system for display modules of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 is a structural schematic diagram of a related glue curing device;

[0034] Figure 2 A schematic diagram of the structure of the glue curing device provided in the embodiment of the present application;

[0035] Figure 3 A schematic diagram of the structure of a second curing unit of a glue curing device provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of a gantry support and a sliding block of a glue curing device provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the structure of an ultraviolet curing lamp provided in an embodiment of the present application;

[0038] Figure 6 A schematic diagram of the structure of a display module glue injection system provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of a display module provided in an embodiment of the present application.

[0040] Marking description: 100, glue curing device; 101, straight edge area; 102, arc angle area; 10, ultraviolet curing lamp; 11, first curing unit; 111, first curing lamp; 112, gantry bracket; 113, sliding block; 12, second curing unit; 121, second curing lamp; 131, curing lamp substrate; 132, lamp beads; 133, lens; 134, heat sink;

[0041] 200, display module glue injection system; 20, display module; 201, display area; 202, frame area; 21, display panel; 211, bending part; 22, cover plate; 30, glue; 40, glue injection mold. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0043] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] With the development trend of narrow-border design of OLED display screens, module border injection has become an important implementation method. By injecting glue into the border area through the in-mold injection process, a protective structure can be formed, the width of the display border can be reduced, and the mechanical strength and reliability of the screen can be improved.

[0045] However, if Figure 1 As shown, in the related art, the glue curing device 100 usually adopts a plurality of ultraviolet curing lamps 10 arranged in an integrated manner, and the ultraviolet curing lamps 10 are located in an area that emulates the border area of ​​the display module. For example, the outline of the border area of ​​the display module is a rounded quadrilateral. Correspondingly, the glue curing device 100 includes four straight edge areas 101 and four arc corner areas 102 that are alternately arranged.

[0046] The inventor of this application has found that although the related technology can meet the curing requirements of display modules of a specific size, when replacing display modules of different sizes, the center position of the light source formed by the ultraviolet curing lamp 10 cannot be adjusted, resulting in a mismatch between the center of the glue path and the center of the light source, and an unsatisfactory curing effect. Therefore, display modules of different sizes need to be re-customized for curing units after glue injection, resulting in problems such as extended project development cycles and increased costs.

[0047] Based on this, the present application provides a glue curing device and a display module glue injection system, which can achieve a narrow frame of the display module while meeting the glue injection requirements of display modules of different sizes, while saving line change time and realizing process automation.

[0048] like Figures 2 to 5 As shown, an embodiment of the present application provides a glue curing device 100, which includes straight edge areas 101 and arc angle areas 102 that are alternately arranged. The glue curing device 100 includes a first curing unit 11 located in the straight edge area 101 and a second curing unit 12 located in the arc angle area 102. The first curing unit 11 can at least move along the width direction of the straight edge area 101, and the second curing unit 12 is located between two adjacent first curing units 11.

[0049] The shape of the glue curing device 100 is similar to the frame area of ​​the display module. For example, the shape of the glue curing device 100 is a rounded quadrilateral, including four straight edge areas 101 and four arc-corner areas 102 .

[0050] It is understandable that in other embodiments, the shape of the adhesive curing device 100 can also be other rounded polygons, and the straight edge area 101 and the arc angle area 102 correspond to the straight edge and arc angle positions in the rounded polygon respectively. In addition, the first curing unit 11 can also move along the width direction and the length direction of the straight edge area 101.

[0051] The glue curing device 100 provided in the embodiment of the present application is divided into a straight edge area 101 and an arc angle area 102, and respectively provides a movable first curing unit 11 and a second curing unit 12 located at the arc angle position, so that the device can be flexibly adjusted according to the shape and size changes of the display module frame of different sizes. When facing display modules of different sizes, the first curing unit 11 can move along the width direction of the straight edge area 101 to adapt to the changes in the glue path of the straight edge part, ensuring the curing effect of the glue by the first curing unit 11 located in the straight edge area 101, and can achieve precise curing for display modules of different sizes, avoiding the problem of incomplete curing due to size changes, thereby improving the process performance.

[0052] like Figure 2 As shown, in some embodiments, the first curing unit 11 includes a plurality of first curing lamps 111 arranged at intervals along the length direction of the straight edge region 101. The plurality of first curing lamps 111 in the first curing unit 11 are arranged at intervals along the length direction of the straight edge region, and can evenly cover the straight edge region 101 to ensure uniformity of glue curing. The second curing unit 12 includes a plurality of groups of second curing lamps 121 and a control switch, and the distances between different groups of second curing lamps 121 and the center of the arc angle region 102 are different. The control switch is used to switch different groups of second curing lamps 121.

[0053] In an ideal case, each group of second curing lights 121 is arranged along an arc path, and different groups of second curing lights 121 have different arc radii. That is, the arc radii of the second curing lights 121 in each group are the same, and the arc radius corresponds to the distance between the second curing lights 121 and the center of the arc angle area 102.

[0054] Among them, the second curing unit 12 is provided with multiple groups of second curing lights 121 with different distances from the same center, which can display the curvature difference of the arc angle area of ​​the module of different sizes, and switch the appropriate second curing light 121 by controlling the switch, so as to further improve the adaptability to different arc angle sizes and ensure the curing effect of the glue on the second curing light 121 located in the arc angle area 102.

[0055] Optionally, the first curing unit 11 and the second curing unit 12 are separately arranged, so as to facilitate independent control and adjustment of the two curing units, thereby improving the flexibility and operability of the device when meeting the curing requirements of display modules of different sizes.

[0056] It should be noted that the second curing lamps 121 may also be arranged and grouped in a path similar to an arc shape. When the second curing lamps 121 are arranged more densely, the shape formed by connecting the groups of second curing lamps 121 is closer to an arc shape.

[0057] It is understandable that, in addition to the curing lamp, the first curing unit 11 and the second curing unit 12 in the glue curing device 100 may also use a heating element. The heating element can cure the thermoplastic or thermosetting glue by controlling the temperature increase, while the curing lamp can cure the photoplastic or photocuring glue by irradiating strong light such as ultraviolet rays.

[0058] like Figure 3 As shown, in some embodiments, the second curing unit 12 includes a plurality of second curing lamps 121 arranged in an array.

[0059] Optionally, the second curing unit 12 further includes a control switch for controlling the second curing lamps 121 . The control switch may correspond to the second curing lamps 121 one by one to achieve independent control of each second curing lamp 121 .

[0060] Optionally, within the same arc angle region 102 , the distances between any two adjacent second curing lamps 121 are equal.

[0061] Among them, the second curing unit 12 adopts an array arrangement of multiple second curing lamps 121, which can cure the glue corresponding to the arc angle area 102 more evenly, avoiding the situation of insufficient or over-curing in some parts, and can improve the adaptability to different arc angle sizes by controlling the switch to switch the appropriate second curing lamp 121. The spacing between adjacent second curing lamps 121 in the same arc angle area 102 is equal, which ensures that the curing energy received by the glue corresponding to the arc angle area 102 is evenly distributed, further improving the uniformity and stability of the glue curing, thereby improving the curing quality of the entire display module.

[0062] like Figure 4 As shown, in some embodiments, the glue curing device 100 further includes a gantry support 112 and a sliding block 113. The gantry support 112 includes two columns and a beam connected between the two columns, and the length direction of the beam is parallel to the width direction of the straight edge area 101. The sliding block 113 is movably mounted on the beam, and the first curing unit 11 is fixedly mounted on the sliding block 113. The sliding block 113 can move along the length direction of the beam, and the first curing unit 11 is fixed on the sliding block 113 and moves synchronously therewith.

[0063] The gantry support 112 and the sliding block 113 are provided to provide stable structural support and guidance for the movement of the first curing unit 11. The first curing unit 11 can move smoothly along the width direction of the straight edge area 101 on the crossbeam of the gantry support 112 through the sliding block 113, ensuring that during the curing process of display modules of different sizes, the first curing unit 11 can accurately adjust its position to achieve effective curing of the glue corresponding to the straight edge area 101.

[0064] like Figure 2As shown, in some embodiments, the glue curing device 100 includes four first curing units 11 and four second curing units 12, and the four first curing units 11 and the four second curing units 12 are alternately arranged to form a rounded quadrilateral.

[0065] Optionally, the first curing unit 11 and the second curing unit 12 are arranged at intervals along the perimeter direction of the rounded quadrilateral. Specifically, the straight edge area 101 corresponds to the four straight edges of the rounded quadrilateral, and the arc angle area 102 corresponds to the four rounded corners of the rounded quadrilateral.

[0066] Among them, the four first curing units 11 and the four second curing units 12 are alternately arranged to form a rounded quadrilateral, which can be adapted to the shape of a common display module frame. The first curing unit 11 and the second curing unit 12 are arranged at intervals along the perimeter direction of the rounded quadrilateral, ensuring that the entire frame area can be uniformly and fully cured, and the two curing units will not interfere with each other during the adjustment process.

[0067] like Figure 5 As shown, in some embodiments, the first curing lamp 111 and the second curing lamp 121 both include an ultraviolet curing lamp 10. The first curing lamp 111 and the second curing lamp 121 use ultraviolet (UV) curing lamps as curing light sources, and use the characteristic of ultraviolet rays that can quickly cure glue to improve the efficiency of glue curing, thereby meeting the rapid curing requirements in the display module production process.

[0068] Optionally, the first curing lamp 111 and the second curing lamp 121 have the same irradiation direction, which can ensure that the glue in the entire display module frame area receives curing energy in the same direction, thereby avoiding uneven curing due to inconsistent irradiation directions.

[0069] Furthermore, the ultraviolet curing lamp 10 includes a curing lamp substrate 131 , a lamp bead 132 and a lens 133 . The lamp bead 132 and the lens 133 are arranged on the same side of the curing lamp substrate 131 , and the lens 133 covers the lamp bead 132 .

[0070] Optionally, the lens 133 is a focusing lens 133 .

[0071] Optionally, the ultraviolet curing lamp 10 further includes a heat sink 134 , which is disposed on a side of the curing lamp substrate 131 away from the lamp bead 132 .

[0072] Among them, the lens 133 covers the lamp bead 132, especially when a focusing lens is used, the ultraviolet rays emitted by the lamp bead 132 can be concentrated to improve the intensity and uniformity of ultraviolet rays, so that the glue can more fully absorb the curing energy during the curing process and improve the curing effect. The setting of the heat sink 134 can timely dissipate the heat generated by the lamp bead 132 when it is working, avoid affecting the service life and curing performance of the lamp bead due to excessive temperature, and ensure that the ultraviolet curing lamp 10 can work stably and continuously.

[0073] like Figure 6 , Figure 7 As shown, the embodiment of the present application also provides a display module glue injection system 200, which includes a display module 20, a glue injection mold 40, and the glue curing device 100 in the above embodiment. The display module 20 includes a display area 201 and a frame area 202 arranged around the display area 201. The glue injection mold 40 is used to inject glue 30 into the frame area 202. The glue curing device 100 is used to cure the glue 30.

[0074] The display module glue injection system 200 of the embodiment of the present application integrates the display module 20, the glue injection mold 40 and the specific glue curing device 100 to work together. After the glue is injected into the frame area 202 of the display module 20, the glue curing device 100 can promptly cure the glue 30. Since the glue curing device 100 has the ability to adapt to display modules 20 of different sizes, the entire glue injection system can meet the production requirements of display modules of various sizes, improve the versatility and flexibility of production, and reduce the cost of redesigning and adjusting the glue injection system for display modules 20 of different sizes.

[0075] Furthermore, the display module 20 includes a display panel 21 and a cover plate 22, the cover plate 22 is disposed on the display side of the display panel 21, and the glue 30 is located on the side of the cover plate 22 facing the display panel 21. The glue curing device 100 is located on the side of the display panel 21 away from the cover plate 22.

[0076] It is understandable that when the glue needs to be cured in the lateral direction, some of the curing lamps in the glue curing device 100 can be arranged on the outer peripheral side of the display panel 21 .

[0077] Optionally, the display panel 21 includes a display portion, a bending portion 211 and a bonding portion connected in sequence, the bonding portion is bent to the back side of the display portion through the bending portion 211, and the bending portion 211 is located in the frame area 202; part of the glue 30 is arranged on the inner and outer sides of the bending portion 211, and part of the glue 30 covers part of the side wall of the display panel 21, specifically covers the side wall of the display portion away from the bending portion 211. Among them, the glue 30 covers the side wall of the display panel 21 and covers the bending portion 211 from both the inner and outer sides, which can effectively enhance the connection strength between the display panel 21 and the cover plate 22, while increasing the support strength of the bending portion 211, forming an all-round protection for the structure in the frame area 202, and improving the mechanical performance and reliability of the display module 20. The glue curing device 100 is used to perform curing operations on the glue distribution structure to ensure that the glue 30 is fully cured at key positions, thereby improving the overall quality and stability of the display module 20.

[0078] In some embodiments, the shape formed by the straight edge area 101 and the arc angle area 102 of the glue curing device 100 is consistent with the shape of the frame area 202. The shape of the glue curing device 100 is consistent with the shape of the frame area 202 of the display module 20, so that the glue curing device 100 can accurately correspond to the frame area 202 when working, ensuring that the light emitted by the curing lamp can be evenly and comprehensively irradiated on the glue in the frame area 202, avoiding the occurrence of curing dead corners, improving the integrity and consistency of glue curing, thereby effectively improving the curing quality of the display module 20 and improving the process performance.

[0079] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0080] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0081] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A glue curing device, characterized in that: Comprising straight edge areas and arc angle areas arranged alternately, the glue curing device comprises: A first curing unit, located in the straight edge area, and the first curing unit can move at least along the width direction of the straight edge area; The second curing unit is located in the arc angle area and between two adjacent first curing units.

2. The adhesive curing device according to claim 1, characterized in that: The first curing unit comprises a plurality of first curing lamps arranged at intervals along the length direction of the straight edge area; the second curing unit comprises a plurality of groups of second curing lamps and a control switch, the distances between the second curing lamps of different groups and the center of the arc angle area are different, and the control switch is used to switch the second curing lamps of different groups; Preferably, the first curing unit and the second curing unit are separately arranged.

3. The glue curing device according to claim 1, characterized in that: The second curing unit includes a plurality of second curing lamps arranged in an array; Preferably, the second curing unit further comprises a control switch for controlling the second curing light; Preferably, within the same arc angle region, the distances between any two adjacent second curing lights are equal.

4. The glue curing device according to claim 1, characterized in that: The glue curing device also includes: A gantry support, comprising two upright posts and a crossbeam connected between the two upright posts, wherein the length direction of the crossbeam is parallel to the width direction of the straight edge area; A sliding block is movably mounted on the cross beam, and the first curing unit is fixedly mounted on the sliding block.

5. The glue curing device according to claim 1, characterized in that: The glue curing device comprises four first curing units and four second curing units, and the four first curing units and the four second curing units are alternately arranged to form a rounded quadrilateral; Preferably, the first curing unit and the second curing unit are arranged at intervals along the perimeter direction of the rounded quadrilateral.

6. The glue curing device according to claim 2, characterized in that: The first curing light and the second curing light each comprise an ultraviolet curing light; Preferably, the first curing light and the second curing light have the same irradiation direction.

7. The adhesive curing device according to claim 6, characterized in that: The ultraviolet curing lamp comprises a curing lamp substrate, a lamp bead and a lens, wherein the lamp bead and the lens are arranged on the same side of the curing lamp substrate, and the lens covers the lamp bead; Preferably, the lens is a focusing lens; Preferably, the ultraviolet curing lamp further comprises a heat sink, and the heat sink is arranged on a side of the curing lamp substrate away from the lamp bead.

8. A display module glue injection system, characterized in that: include: A display module, comprising a display area and a frame area arranged around the display area; A glue injection mold, used for injecting glue into the frame area; The glue curing device according to any one of claims 1 to 7, used to cure the glue.

9. The display module glue injection system according to claim 8, characterized in that: The display module comprises a display panel and a cover plate, wherein the cover plate is arranged on the display side of the display panel, the glue is located on a side of the cover plate facing the display panel, and the glue curing device is at least located on a side of the display panel facing away from the cover plate; Preferably, the display panel comprises a bending portion, and the bending portion is located in the frame area; the glue is at least partially arranged on the inner side and the outer side of the bending portion, and the glue also covers at least a part of the side wall of the display panel.

10. The display module glue injection system according to claim 8, characterized in that: The shape formed by the straight edge area and the arc angle area of ​​the adhesive curing device is consistent with the shape of the frame area.

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