CN216708398U - Lamp-pressing glue structure - Google Patents
Lamp-pressing glue structure Download PDFInfo
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- CN216708398U CN216708398U CN202122750132.4U CN202122750132U CN216708398U CN 216708398 U CN216708398 U CN 216708398U CN 202122750132 U CN202122750132 U CN 202122750132U CN 216708398 U CN216708398 U CN 216708398U
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- roller
- lamp
- light guide
- guide plate
- glue
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Abstract
The utility model discloses a lamp holder pressing structure which comprises a workbench, a lamp holder pressing jig and an FPC (flexible printed circuit) jig; the lamp pressing glue jig is arranged on the workbench and comprises a connecting piece and a roller, and the roller is arranged on the connecting piece; the FPC jig is arranged on the workbench and used for placing a flexible circuit board; the roller is used for rolling the light guide plate to press the flexible circuit board, so that the light guide plate is attached to the flexible circuit board through the lamp glue. According to the technical scheme, the rollers arranged on the lamp glue pressing jig roll and press the light guide plate back and forth, so that the activation rate of the lamp glue is higher, the light guide plate and the lamp glue are bonded more compactly, and the light guide plate and the lamp glue can be prevented from being separated under the conditions of high temperature, high humidity or falling.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a lamp holder structure.
Background
In recent years, along with the popularization of mobile terminals of mobile phones, users have higher and higher requirements on the quality of screen display, and thus, strict requirements are put forward on a backlight module in a display screen. At present, when a user uses a mobile phone, the separation of lamp glue and a light guide plate is easy to occur under the conditions of high height drop of the mobile phone (such as the drop of the mobile phone at a position of 1.2 m) or high temperature and high humidity, so that light leakage at a backlight light source is caused. Among the prior art, use the toper to press the glued structure of lamp and press the laminating with lamp glue and light guide plate, just press the light guide plate once through atmospheric pressure, the easy gassing that produces, lamp glue and light guide plate are laminated completely, and the easy lamp glue separates with the light guide plate when the user uses.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a lamp holder pressing structure, and aims to solve the problem that lamp holders and a light guide plate are easy to separate.
In order to achieve the purpose, the lamp holder pressing structure provided by the utility model comprises a workbench, a lamp holder pressing jig and an FPC jig; the lamp pressing glue jig is arranged on the workbench and comprises a connecting piece and a roller, and the roller is arranged on the connecting piece; the FPC jig is arranged on the workbench and used for placing a flexible circuit board; the roller is used for rolling the light guide plate to press the flexible circuit board, so that the light guide plate is attached to the flexible circuit board through the lamp glue.
In one embodiment, the connecting piece comprises a connecting rod and a mounting plate, the connecting rod is vertically mounted on one surface of the mounting plate, the roller is arranged on one surface, away from the connecting rod, of the mounting plate, and the roller can roll around the axis of the roller relative to the mounting plate.
In an embodiment, the lamp-pressing structure further includes a driving member, and the driving member is in driving connection with the connecting rod, so that the roller rolls to press the light guide plate.
In one embodiment, the roller is elastic.
In one embodiment, the periphery of the roller is provided with a high-strength rubber.
In one embodiment, the moving speed of the roller is 290 to 305 mm/s.
In one embodiment, the pressing force of the roller is 0.4 to 0.6 MPa.
In one embodiment, the roller pressing time is 0.09 to 0.12 s.
In one embodiment, there are 4 rollers, and there are 4 rotating shafts, and the 4 rollers are respectively disposed on the peripheries of the 4 rotating shafts.
In one embodiment, 4 rollers are parallel to each other and are spaced at equal intervals.
According to the technical scheme, the rollers arranged on the lamp glue pressing jig are adopted to roll and press the light guide plate back and forth, compared with the prior art that the light guide plate is pressed in a conical shape, bubbles are easy to appear, and the light guide plate and the lamp glue are not tightly attached.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a portion of a structure of a lamp cement structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of a portion of a conventional lamp cement structure;
FIG. 4 is a simplified diagram of one embodiment of a bead structure of the present invention;
FIG. 5 is a front view of a portion of one embodiment of a bead structure of the present invention;
fig. 6 is a schematic structural view of a lamp-pressing adhesive fixture according to an embodiment of the lamp-pressing adhesive structure of the utility model.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In recent years, along with the popularization of mobile terminals of mobile phones, users have higher and higher requirements on the quality of screen display, and thus, strict requirements are put forward on a backlight module in a display screen. At present, when a user uses a mobile phone, the light glue 400 is easily separated from the light guide plate 200 under a high-height falling condition (for example, a mobile phone falling at a position of 1.2 m) or a high-temperature and high-humidity condition, so that light leakage occurs at a backlight light source. As shown in fig. 3, in the prior art, the tapered lamp glue pressing jig 100' is used to press and attach the lamp glue 400 to the light guide plate 200, and the light guide plate 200 is pressed only once by air pressure, so that air bubbles are easily generated, the lamp glue 400 is not completely attached to the light guide plate 200, and the lamp glue 400 is easily separated from the light guide plate 200 when the user uses the lamp glue pressing jig.
Referring to fig. 1 to 6, the present invention provides a lamp-pressing adhesive structure, which includes a worktable, a lamp-pressing adhesive fixture 100 and an FPC fixture 300; the lamp pressing glue jig 100 is arranged on the workbench, the lamp pressing glue jig 100 comprises a connecting piece and a roller 110, and the roller 110 is arranged on the connecting piece; the FPC jig 300 is arranged on the workbench, and the FPC jig 300 is used for placing a flexible circuit board 310; the roller 110 is used for rolling and pressing the light guide plate 200 on the flexible printed circuit board 310, so that the light guide plate 200 is attached to the flexible printed circuit board 310 through the lamp glue 400.
Specifically, the lamp-pressing adhesive structure can be used in a backlight module for producing a mobile phone, the backlight module comprises a light guide plate 200, an adhesive 400, an LED500, a flexible printed circuit board 310 and the like, and the LED500 is arranged on the flexible printed circuit board 310 and is located at the outer edge of the attaching area of the flexible printed circuit board 310. It can realize that light guide plate 200 and lamp glue 400 laminate compacter. The number of the rollers 110 may be 1, 2, 3, 4, etc., and only the rollers 110 may achieve the purpose of increasing the activation rate of the light adhesive 400, which is not specifically limited herein. The shape of the lamp-pressing glue jig 100 may be various, and a square, a rectangle, a circle, or other regular and irregular figures are all possible, and are not limited herein. The bonding region on the flexible printed circuit 310 is bonded to the light guide plate 200 by the lamp glue 400, and the lamp glue 400 is located between the light guide plate 200 and the flexible printed circuit 310.
Referring to fig. 1 and 4, a flexible printed circuit board 310 is mounted on the FPC jig 300, the flexible printed circuit board 310 is disposed under the light adhesive 400, and the FPC jig 300 is disposed on the workbench. The light adhesive 400 is located between the flexible printed circuit board 310 and the light guide plate 200, the worktable plays a supporting role, and the FPC jig 300 can fix the flexible printed circuit board 310 below the light adhesive 400 and the light guide plate 200. The roller 110 acts on the light guide plate 200, and presses the light guide plate 200 and the lamp glue 400, so that the light guide plate 200 and the lamp glue 400 are more compactly acted and attached.
The lamp glue 400 is generally addition type liquid glue silicon and is mainly used for bonding and sealing, the lamp glue 400 and the light guide plate 200 are in a rectangular conical square structure, a layer of plastic is wrapped on the surface of the lamp glue 400 and used for protection, the rectangular cone is prevented from pressing the light guide plate 200, and the method is traditional and has no effective control method. Meanwhile, the light guide plate 200 is pressed by the rectangular cone structure, bubbles are easily generated between the light guide plate 200 and the light guide plate 200, so that the light guide plate 200 and the light guide plate 400 are not completely attached to each other, and when a user uses a mobile phone, the mobile phone falls down carelessly, the light guide plate 200 is separated from the light guide plate 400, and light leakage at a backlight source is caused. According to the utility model, the structure of the rectangular cone is changed into the structure of the roller 110, and the light guide plate 200 is rolled and pressed back and forth, so that the activation rate of the lamp glue 400 is increased, the bonding compactness between the light guide plate 200 and the lamp glue 400 is ensured, and the stability of the whole structure can be ensured even under the conditions of high temperature and high humidity or falling.
Referring to fig. 2 and 6, in this embodiment, the connecting member includes a connecting rod 120, a mounting plate 130, and a rotating shaft 140, the connecting rod 120 is vertically mounted on the mounting plate 130, the rotating shaft 140 is disposed on the mounting plate 130, the roller 110 is disposed on the periphery of the rotating shaft 140, and the roller 110 can roll around its axis relative to the rotating shaft 140.
It is understood that, when the production is performed, the roller 110, the connecting rod 120, the mounting plate 130 and the rotating shaft 140 are translated relative to the light guide plate 200, and the roller 110 may rotate about its own axis relative to the rotating shaft 140, that is, relative to the connecting rod 120 and the mounting plate 130. The roller 110 rolls back and forth on the light guide plate 200 and gradually presses, so that the activation rate of the lamp glue 400 is higher, the lamp glue 400 is more completely contacted with the light guide plate 200, the laminating degree of the light guide plate 200 and the lamp glue 400 is more compact, and the production quality of the backlight module is ensured.
Referring to fig. 1, fig. 2 and fig. 6, in the present embodiment, the lamp-pressing structure further includes a driving member, and the driving member is connected to the connecting rod 120 in a driving manner, so that the roller 110 rolls and presses the light guide plate 200. It can be understood that the driving member may be a motor, an electromagnet, an air cylinder or other driving device, and only needs to drive the connecting rod 120, the transmission mounting plate 130 and the rotating shaft 140 to drive the roller 110 to roll and press on the light guide plate 200, so that the light guide plate 200 and the lamp glue 400 are more attached to each other, and no specific limitation is made herein. The roller 110 may be rolled back and forth on the light guide plate 200 from left to right once, to bond the lamp glue 400 and the light guide plate 200 more firmly.
Referring to fig. 1 and 6, in order to make the light guide plate 200 and the lamp glue 400 fit together more compactly and not damage the light guide plate 200, in the present embodiment, the roller 110 has elasticity. The material of the roller 110 may be an elastic member, which may be rubber, sponge, or acrylic rubber, and only needs to have certain elasticity, and is not limited herein. When the roller 110 rolls on the light guide plate 200, a contact surface is arranged between the periphery of the roller 110 and the light guide plate 200, the roller 110 is provided with elasticity, so that the light guide plate 200 can be effectively prevented from being crushed and damaged, the structure of the light guide plate 200 is damaged, meanwhile, the arrangement of the elastic piece can ensure that the fitting degree between the light guide plate 200 and the lamp glue 400 is more compact, and the stability of the whole structure is realized.
Further, the periphery of the roller 110 is provided with a high-gravity rubber. The super rubber is a novel material with good strength and small compression deformation, which is between plastic and rubber, has the rigidity of plastic and the elasticity of rubber, and has wide application. The super glue has the characteristics of buffering, silencing, damping, wear resistance, high temperature resistance and the like, and is suitable for mechanical buffering materials, punch dies, recoil pads, bending forming and the like. The high-strength adhesive is used on the roller 110 of the lamp glue pressing 400 structure, so that the characteristic that the roller 110 improves the activation rate of the lamp glue 400 can be kept, the roller 110 can be applied with proper pressure without being too large or too small, the light guide plate 200 and the lamp glue 400 can be attached more compactly through the high-strength adhesive, and no bubbles are generated.
The moving speed of the roller 110 determines the production efficiency, and the faster the roller 110 moves, the higher the production efficiency, in this embodiment, the moving speed of the roller 110 is 290 to 305 mm/s. The moving speed of the roller 110 may be 290mm/s, 295mm/s, 300mm/s, 305mm/s, etc., and is not particularly limited thereto.
The pressing force of the roller 110 should be properly selected, and too large pressing force may cause the light guide plate 200 to be crushed, too small pressing force, and incomplete adhesion between the light guide plate 200 and the lamp glue 400, in this embodiment, the pressing force of the roller 110 is 0.4 to 0.6 Mpa. For example: the pressing force of the roller 110 is 0.5 Mpa.
In this embodiment, the pressing time of the roller 110 is 0.09 to 0.12 s. The shorter the pressing time of the roller 110 is, the faster the production process efficiency is, and the pressing time of the roller 110 in the embodiment may be 0.09, 0.10, 0.12s, etc.
Referring to fig. 1 and 4, in a preferred embodiment, there are 4 rollers 110, 4 rotating shafts 140, and 4 rollers 110 are respectively disposed on the peripheries of the 4 rotating shafts 140. It can be understood that, 4 gyro wheels 110 act on light guide plate 200 evenly, can be effectual round trip to roll pressfitting light guide plate 200, also can not weigh the damage light guide plate 200, the roll extrusion pressing strength can be between 0.4 ~ 0.6Mpa, press the number of times and can be divided into one to make a round trip (total twice) or two to make a round trip (total four times), press and make a round trip to adjust through different project structures, press the time and can set for 0.1s, gyro wheel 110 moving speed can be 300mm/s, each item standard of effectual pressfitting, can more effectively carry out the quality of management and control light guide plate 200 and lamp glue 400 pressfitting.
Further, 4 rollers 110 are parallel to each other and have equal spacing. The 4 rollers 110 with equal and parallel spacing can make the pressure act on the light guide plate 200 more uniformly, so as to ensure the degree of adhesion between the light guide plate 200 and the lamp glue 400.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention that are made by using the contents of the specification and the drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A lamp cement pressing structure is characterized by comprising
A work table;
the lamp pressing glue jig is arranged on the workbench and comprises a connecting piece and a roller, and the roller is arranged on the connecting piece;
the FPC jig is arranged on the workbench and used for placing a flexible circuit board;
the roller is used for rolling the light guide plate to press the flexible circuit board, so that the light guide plate is attached to the flexible circuit board through the lamp glue.
2. The lamp cement structure as claimed in claim 1, wherein the connecting member comprises a connecting rod, a mounting plate and a rotating shaft, the connecting rod is vertically mounted on the mounting plate, the rotating shaft is arranged on the mounting plate, the roller is arranged on the periphery of the rotating shaft, and the roller can roll around the axis of the roller relative to the rotating shaft.
3. The lamp paste structure of claim 2, further comprising a driving member drivingly connected to the connecting rod to cause the roller to roll against the light guide plate.
4. The lamp cement structure of claim 3 wherein the roller is resilient.
5. The lamppress glue structure according to claim 4, characterized in that the periphery of the roller is provided with a high-gravity glue.
6. The lamp cement structure of claim 3, wherein the roller movement speed is 290 to 305 mm/s.
7. The lamp cement structure of claim 3 wherein the roller has a pressing force of 0.4 to 0.6 MPa.
8. The lamp cement structure of claim 3, wherein the roller press time is 0.09 to 0.12 s.
9. The lamp cement structure as claimed in claim 5, wherein there are 4 rollers, there are 4 rotating shafts, and 4 rollers are respectively provided on the peripheries of the 4 rotating shafts.
10. The lamp cement structure of claim 9 wherein 4 of said rollers are parallel and equally spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750132.4U CN216708398U (en) | 2021-11-10 | 2021-11-10 | Lamp-pressing glue structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122750132.4U CN216708398U (en) | 2021-11-10 | 2021-11-10 | Lamp-pressing glue structure |
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| Publication Number | Publication Date |
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| CN216708398U true CN216708398U (en) | 2022-06-10 |
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| CN202122750132.4U Active CN216708398U (en) | 2021-11-10 | 2021-11-10 | Lamp-pressing glue structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935842A (en) * | 2022-06-17 | 2022-08-23 | 广东江粉高科技产业园有限公司 | Novel Mylar pressing roller jig process |
-
2021
- 2021-11-10 CN CN202122750132.4U patent/CN216708398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935842A (en) * | 2022-06-17 | 2022-08-23 | 广东江粉高科技产业园有限公司 | Novel Mylar pressing roller jig process |
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