Structure for pasting optical film on special-shaped cover plate

Abstract

The utility model discloses a special-shaped cover plate optical film pasting structure which comprises an upper table body and a lower table body which are oppositely arranged up and down, a special-shaped cover plate is adsorbed below the upper table body in a vacuum mode, an optical film is adsorbed above the lower table body in a vacuum mode, and a silica gel roller assembly is further arranged in the lower table body and used for jacking and attaching the optical film. A special-shaped groove matched with the special-shaped cover plate is formed in the compensation element; the compensation element is arranged on the outer side of the special-shaped cover plate in a sleeving mode through the special-shaped groove and connected with the upper table body. According to the structure for pasting the optical film on the special-shaped cover plate, the compensation element is additionally arranged on the upper table plate, the middle of the compensation element is hollowed out to form the special-shaped groove matched with the special-shaped cover plate in appearance, and the thickness of the compensation element is slightly smaller than that of the special-shaped cover plate, so that when the soft silica gel roller assembly rolls through the sharp corner area of the special-shaped cover plate to deform and sink during film pasting, the compensation element is not damaged; a part of pressure is uniformly distributed on the compensation element, so that the indentation caused by large local pressure in the area is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of optical thin films, in particular to a structure for pasting an optical film on a special-shaped cover plate. Background Art

[0002] The simplest optical thin film model is a thin layer of homogeneous medium with a smooth surface and isotropy. In this case, the optical properties of the optical thin film can be studied by the theory of light interference. When a beam of monochromatic plane wave is incident on the optical thin film, multiple reflections and refractions occur on its two surfaces. The directions of the reflected light and the refracted light are given by the reflection law and the refraction law, and the amplitudes of the reflected light and the refracted light are determined by the Fresnel formula.

[0003] In the current in-vehicle display industry, optical film cover plates are widely used. For example, pasting an AG film or an AR film on the cover plate can play an anti-glare role. As Figure 1 shown, in the actual production and pasting process of some films, the cover plate 1-2 and the optical film 1-3 are respectively vacuum adsorbed by the upper platen 1-1 and the lower platen 1-4. The machine roller 1-5 in the lower platen 1-4 jacks up and rolls the optical film 1-3 from right to left, so that it adheres to the cover plate 1-2.

[0004] The above-mentioned film pasting method has no problem when applied to conventional-shaped cover plates 1-2 and optical films 1-3. However, for the film pasting of special-shaped cover plates, it has the following defects:

[0005] During the process of pasting a film on a special-shaped cover plate, the jacked-up roller rolls from one end to the other end. At the position of the cover plate near the sharp corner, the roller pressure will be concentrated, and roller marks will appear on the optical film, which affects the actual application of the optical film. Therefore, the present application proposes a structure for pasting an optical film on a special-shaped cover plate. Summary of the Utility Model

[0006] Based on this, in order to solve the above technical problems, it is necessary to provide a structure for pasting an optical film on a special-shaped cover plate, in which a corresponding special-shaped groove is opened according to the shape of the special-shaped cover plate, so that the compensation element is sleeved outside the special-shaped cover plate to form stress dispersion or compensation for the silicone roller assembly during the film pasting process.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A structure for pasting an optical film on a special-shaped cover plate includes an upper body and a lower body arranged oppositely up and down. The special-shaped cover plate is vacuum adsorbed below the upper body, and the optical film is vacuum adsorbed above the lower body. A silicone roller assembly is further arranged in the lower body for jacking up and attaching the optical film, and further includes:

[0009] A compensation element, on which a special-shaped groove adapted to the special-shaped cover plate is formed;

[0010] Wherein, the compensation element is sleeved outside the special-shaped cover plate through a special-shaped groove and connected to the upper table body to perform pressure compensation when the silica gel roller assembly jacks up and attaches the optical film to the special-shaped cover plate.

[0011] Furthermore, the special-shaped groove is formed in the middle of the compensation element.

[0012] Furthermore, the thickness of the compensation element is less than that of the special-shaped cover plate.

[0013] Furthermore, a quick-release element is connected to the outside of the upper table body, and a groove body is formed at the position corresponding to the quick-release element on the outside of the compensation element. The quick-release element is used to realize the disassembly and replacement of special-shaped cover plates with different shapes.

[0014] Furthermore, the quick-release element includes a carrier seat fastened to the upper table body and a locking block slidably arranged in the carrier seat. The locking block can slide along the length direction of the carrier seat and extend into and out of the groove body.

[0015] Furthermore, a spring fixed to the locking block is also connected to the side wall of the carrier seat. Under the supporting force of the spring, the locking block is stably positioned in the groove body in the natural state to form a locked state.

[0016] Furthermore, a push handle extends from the locking block towards the outside of the carrier seat, and a push rod is commonly connected between two push handles on the same side of the compensation element.

[0017] Furthermore, a swing arm is hinged to the inside of the carrier seat.

[0018] Furthermore, a placement platform is fixed at one end of the swing arm. The placement platform can rotate along the hinge of the swing arm and be placed on the surface of the push rod.

[0019] Furthermore, a limit block connected to the carrier seat is fixed on one side of the swing arm.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] The special-shaped cover plate attaching optical film structure provided by the present utility model adds a compensation element to the upper table body. A special-shaped groove matching the shape of the special-shaped cover plate is formed by hollowing out the middle thereof, and its thickness is slightly lower than that of the special-shaped cover plate. In this way, when the soft silica gel roller assembly rolls over the sharp corner area of the special-shaped cover plate and deforms and sinks during film attachment, a part of the pressure will be evenly distributed to the compensation element, thereby avoiding excessive local pressure in this area resulting in indentations or local suspension and inclination of the silica gel roller assembly, leading to insufficient pressure and generation of bonding bubbles.

[0022] Meanwhile, with the quick-release component arranged outside the compensation component, before the film pasting process of different special-shaped cover plates, the locking of the groove body can be released by sliding the locking block, so as to realize the quick disassembly and replacement of the compensation component. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the existing film pasting structure of the cover plate proposed in the background technology of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the optical film pasting structure for special-shaped cover plates provided by the present invention;

[0025] Figure 3 It is a schematic structural diagram of the special-shaped cover plate of the optical film pasting structure for special-shaped cover plates provided by the present invention;

[0026] Figure 4 It is a schematic structural diagram of the quick-release component of the optical film pasting structure for special-shaped cover plates provided by the present invention;

[0027] Figure 5 It is for the optical film pasting structure for special-shaped cover plates provided by the present invention Figure 4 The enlarged structural diagram at position A;

[0028] Figure 6 It is a schematic structural diagram of the disassembled state of the quick-release component of the optical film pasting structure for special-shaped cover plates provided by the present invention;

[0029] Figure 7 It is a schematic cross-sectional structural diagram of the quick-release component of the optical film pasting structure for special-shaped cover plates provided by the present invention.

[0030] The markings in the figures are described as follows:

[0031] Upper table body 1, special-shaped cover plate 11;

[0032] Lower table body 2, optical film 21;

[0033] Compensation component 3, special-shaped groove 31, groove body 32;

[0034] Silicone roller assembly 4;

[0035] Quick-release component 5, bearing seat 51, locking block 52, spring 53, push handle 54, push rod 55, swing arm 56, placing table 57, limit block 58. Detailed Description of the Invention

[0036] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0037] As described in the background art, during the process of applying a film to a special-shaped cover plate, the lifted roller rolls from one end to the other end. At the position of the cover plate near the sharp corner, the roller pressure will be concentrated entirely, and roller indentations will appear on the optical film, affecting the actual application of the optical film.

[0038] To solve this technical problem, the present utility model provides a special-shaped cover plate optical film pasting structure, which is applied to the attachment of an optical film to a cover plate.

[0039] Specifically, please refer to Figures 1-7 , the special-shaped cover plate optical film pasting structure specifically includes an upper table body 1 and a lower table body 2 arranged opposite to each other up and down. A special-shaped cover plate 11 is vacuum adsorbed below the upper table body 1, and an optical film 21 is vacuum adsorbed above the lower table body 2. A silicone roller assembly 4 is further provided in the lower table body 2 for lifting and pasting the optical film 21, and further includes:

[0040] A compensation element 3, on which a special-shaped groove 31 adapted to the special-shaped cover plate 11 is formed;

[0041] Among them, the compensation element 3 is sleeved outside the special-shaped cover plate 11 through the special-shaped groove 31 and connected to the upper table body 1 for pressure compensation when the silicone roller assembly 4 lifts and pastes the optical film 21 on the special-shaped cover plate 11;

[0042] In the special-shaped cover plate optical film pasting structure provided by the present utility model, by adding a compensation element 3 on the upper table body 1, a special-shaped groove 31 adapted to the outer shape of the special-shaped cover plate 11 is formed by hollowing out the middle thereof, and its thickness is slightly lower than the thickness of the special-shaped cover plate 11. In this way, when the soft silicone roller assembly 4 rolls over the sharp corner area of the special-shaped cover plate 11 and deforms and sinks, a part of the pressure will be evenly distributed to the compensation element 3, thereby avoiding excessive local pressure in this area from generating indentations, or avoiding the generation of bonding bubbles due to insufficient pressure caused by local suspension and inclination of the silicone roller assembly 4.

[0043] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings.

[0044] It should be noted that, without conflict, the embodiments and the features and technical solutions in the embodiments of the present utility model can be combined with each other.

[0045] It should be noted that like reference numerals and letters indicate like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] Embodiment 1

[0047] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown, a special-shaped cover plate pasting optical film structure includes an upper body 1 and a lower body 2 which are arranged opposite to each other up and down. A special-shaped cover plate 11 is vacuum adsorbed below the upper body 1, and an optical film 21 is vacuum adsorbed above the lower body 2. A silica gel roller assembly 4 is further arranged in the lower body 2 for jacking and pasting the optical film 21. It also includes: a compensation element 3, on which a special-shaped groove 31 adapted to the special-shaped cover plate 11 is formed. Among them, the compensation element 3 is sleeved outside the special-shaped cover plate 11 through the special-shaped groove 31 and connected to the upper body 1 to perform pressure compensation when the silica gel roller assembly 4 jacks up and pastes the optical film 21 on the special-shaped cover plate 11;

[0048] The special-shaped groove 31 is opened in the middle of the compensation element 3, and the thickness of the compensation element 3 is less than the thickness of the special-shaped cover plate 11;

[0049] During the actual process of pasting the optical film 21, a compensation element 3 adapted to the size of the special-shaped cover plate 11 is sleeved on the surface of the special-shaped cover plate 11 and fixed to the upper body 1. Then, the optical film 21 corresponding to the special-shaped cover plate 11 is placed on the lower body 2, and the optical film 21 is abutted and rolled through the top of the silica gel roller assembly 4, so as to paste the optical film 21 on the special-shaped cover plate 11;

[0050] The specific structure and rolling pasting action of the above-mentioned silica gel roller assembly 4 are mature and perfect existing technologies, and no further elaboration is made in this embodiment. And as Figure 3 shown, when the silica gel roller assembly 4 rolls on the right side of the special-shaped groove 31, at this time, the pressure at the corresponding sharp corner position of the optical film 21 can be partially dispersed on the compensation element 3, so as to avoid excessive local pressure in this area causing indentation or partial suspension and inclination of the silica gel roller assembly 4, resulting in insufficient pressure and generating bonding bubbles;

[0051] At the same time, when dealing with special-shaped cover plates 11 of different shapes, the compensation elements 3 on the upper body 1 can be synchronously replaced, so as to realize pressure compensation during pasting of cover plates of various forms. For the specific solutions, please refer to the subsequent embodiments.

[0052] Embodiment 2

[0053] The special-shaped cover plate pasting optical film structure provided in Embodiment 1 is further optimized. Specifically, as Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a quick-release element 5 is connected to the outside of the upper table body 1, and a groove body 32 is formed at the position corresponding to the quick-release element 5 on the outside of the compensation element 3. The quick-release element 5 is used to realize the disassembly and replacement of the special-shaped cover plates 11 with different shapes;

[0054] The quick-release element 5 includes a carrier seat 51 fastened to the upper table body 1 and a locking block 52 slidably disposed in the carrier seat 51. The locking block 52 can slide along the length direction of the carrier seat 51 and extend into and out of the groove body 32;

[0055] Through the above structural design, when the locking block 52 slides on the surface of the carrier seat 51, one end of the locking block 52 will slide and insert into the groove body 32 on the outside of the compensation element 3. When the locking block 52 slides in the groove body 32, the compensation element 3 is locked. At the same time, when pasting the mold on the special-shaped cover plates 11 with different shapes, the compensation element 3 with different-shaped grooves 31 is also replaced synchronously. At this time, only need to slide the locking block 52 to expose it outside the groove body 32, and then take out the compensation element 3 and replace it, thus realizing the quick disassembly and assembly of the compensation element 3.

[0056] Embodiment 3

[0057] The special-shaped cover plate pasting optical film structure provided in Embodiment 2 is further optimized. As Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a spring 53 fixed to the locking block 52 is further connected to the side wall of the carrier seat 51. Under the supporting force of the spring 53, the locking block 52 is stably in the groove body 32 in the natural state to form a locked state;

[0058] In order to prevent the locking block 52 from sliding easily and causing the compensation element 3 to disengage and shake when the locking block 52 forms a lock on the compensation element 3 in the groove body 32, the spring 53 is added;

[0059] After the spring 53 is added, in the natural state, the locking block 52 is affected by the acting force of the spring 53, and its end will be engaged in the corresponding groove body 32, so as to stably form a locked state in the groove body 32. Pushing the locking block 52 outwards can unlock the compensation element 3 and realize the replacement of the compensation element 3.

[0060] Embodiment 4

[0061] The special-shaped cover plate pasting optical film structure provided in Embodiment 3 is further optimized. AsFigure 4 , Figure 5 , Figure 6 and Figure 7 As shown in Figure 6 and Figure 7 , the locking block 52 extends towards the outside of the bearing seat 51 with a push handle 54, and a push rod 55 is commonly connected between two push handles 54 on the same side of the compensation element 3;

[0062] When actually disassembling the compensation element 3, it is necessary to sequentially push the locking block 52 of the corresponding multiple quick-release elements 5 on its outside one by one, which requires multiple people to cooperate synchronously to synchronously release the locking of the groove body 32 by the multiple locking blocks 52. Therefore, the push rod 55 is added in this embodiment;

[0063] By adding the push rod 55, when disassembling the quick-release element 5, the push rod 55 can be pulled on both sides of the compensation element 3 at the same time. During the pulling process of the push rod 55, the locking blocks 52 at both ends will be driven to slide synchronously, so that the positions of the four locking blocks 52 can be synchronously adjusted by both hands to form a release, further improving the replacement efficiency of the compensation element 3.

[0064] Embodiment 5

[0065] The special-shaped cover plate optical film sticking structure provided in Embodiment 4 is further optimized. As Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a swing arm 56 is hinged inside the bearing seat 51;

[0066] One end of the swing arm 56 is fixed with a placing platform 57, and the placing platform 57 can be rotated and placed on the surface of the push rod 55 along the hinge of the swing arm 56;

[0067] A limit block 58 connected to the bearing seat 51 is fixed on one side of the swing arm 56. Under the action of the limit block 58, the swing arm 56 and the placing platform 57 thereon can only rotate to the Figure 6 position at the maximum angle, so as to form a temporary support for the compensation element 3 when the compensation element 3 falls;

[0068] As Figure 5 shown, when the quick-release element 5 forms a firm support for the compensation element 3, the placing platform 57 is placed on the surface of the push rod 55 to form a support. When the two push rods 55 are pushed to move away from each other and drive the locking blocks 52 at their ends to move outwards, at this time, the locking blocks 52 have not completely moved into the groove body 32, and the push rod 55 has already released the support for the placing platform 57. Without the supporting force, the placing platform 57 and the swing arm 56 will rotate downwards synchronously, forming as Figure 6In the shown state, when the sliding push rod 55 causes the locking block 52 to completely release the limit on the groove body 32, at this time, the compensation element 3 will fall due to the lack of support force. During the falling process, the compensation element 3 will form a temporary support on the surfaces of multiple flipped placement platforms 57, which facilitates the subsequent removal of the compensation element 3 by the operator, avoids the direct dropping of the compensation element 3 after disassembly, and is beneficial to the protective use of the compensation element 3.

[0069] The use process of the special-shaped cover plate pasting optical film structure provided by the present utility model is as follows: The special-shaped cover plate 11 is adsorbed on the upper table body 1 through vacuum adsorption, and the optical film 21 is on the lower table body 2. Then, the compensation element 3 is sleeved on the surface of the special-shaped cover plate 11. At this time, the locking block 52 will retract into the bearing seat 51. Then, the push rod 55 is released, and the elastic force of the spring 53 causes the locking block 52 to slide into the groove body 32 outside the compensation element 3 to form a lock on the compensation element 3. Then, the placement platform 57 is flipped so that one end of it is temporarily placed on the surface of the push rod 55. If there is a movement obstacle with the push rod 55 during the flipping process, the push rod 55 can be slightly moved to facilitate the top of the placement platform 57. Then, through the lifting of the silicone roller assembly 4, the optical film 21 is attached to the surface of the special-shaped cover plate 11. During the contact and attachment process, the pressure at the sharp corner position can be partially dispersed on the compensation element 3 to make the attachment of the optical film 21 more perfect.

[0070] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0071] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is equally within the scope of the patent protection of the present utility model.

Claims

1. A structure for attaching an optical film to a special-shaped cover plate, comprising an upper platform (1) and a lower platform (2) arranged opposite to each other, wherein a special-shaped cover plate (11) is vacuum-absorbed below the upper platform (1), and an optical film (21) is vacuum-absorbed above the lower platform (2), and a silicone roller assembly (4) is further provided in the lower platform (2) for lifting and attaching the optical film (21), characterized in that: Also includes: A compensation element (3), wherein a special-shaped groove (31) adapted to the special-shaped cover plate (11) is formed on the compensation element (3); The compensation element (3) is sleeved on the outside of the special-shaped cover plate (11) through a special-shaped groove (31) and connected to the upper platform (1) so as to compensate for the pressure when the optical film (21) is attached to the special-shaped cover plate (11) by the silicone roller assembly (4).

2. The optical film-attached structure of a special-shaped cover plate according to claim 1, characterized in that: The special-shaped groove (31) is opened in the middle of the compensation element (3).

3. The optical film-attached structure of a special-shaped cover plate according to claim 1, characterized in that: The thickness of the compensation element (3) is smaller than the thickness of the special-shaped cover plate (11).

4. The optical film-attached structure of a special-shaped cover plate according to claim 1, characterized in that: A quick-release element (5) is connected to the outer side of the upper platform (1), and a groove (32) is formed on the outer side of the compensation element (3) at a position corresponding to the quick-release element (5). The quick-release element (5) is used to realize the disassembly and replacement of special-shaped cover plates (11) with different shapes.

5. The optical film-attached structure of a special-shaped cover plate according to claim 4, characterized in that: The quick-release element (5) comprises a bearing seat (51) fastened to the upper platform (1) and a locking block (52) slidably disposed in the bearing seat (51); the locking block (52) can slide along the length direction of the bearing seat (51) and extend into and out of the slot (32).

6. The optical film-attached structure of a special-shaped cover plate according to claim 5, characterized in that: The side wall of the bearing seat (51) is also connected to a spring (53) fixed to the locking block (52), and the locking block (52) is stabilized in the groove body (32) in a natural state to form a locked state due to the support force of the spring (53).

7. The optical film-attached structure of a special-shaped cover plate according to claim 6, characterized in that: The locking block (52) has a push handle (54) extending toward the outside of the bearing seat (51), and a push rod (55) is commonly connected between the two push handles (54) located on the same side of the compensation element (3).

8. The optical film-attached structure of a special-shaped cover plate according to claim 7, characterized in that: A swing arm (56) is hingedly connected to the inner side of the bearing seat (51).

9. The optical film-attached structure of a special-shaped cover plate according to claim 8, characterized in that: A mounting platform (57) is fixed to one end of the swing arm (56), and the mounting platform (57) can be rotatably mounted on the surface of the push rod (55) along the hinge of the swing arm (56).

10. The optical film-attached structure of a special-shaped cover plate according to claim 9, characterized in that: A limiting block (58) connected to the bearing seat (51) is fixed on one side of the swing arm (56).

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