OCA (Optical Clear Adhesive) with alignment holes
By setting alignment holes and designing alignment columns in OCA optical glue, the problem of OCA optical glue being placed in reverse or inverted is solved, and correct alignment and improved production efficiency are achieved.
Patent Information
- Application Number
- CN202420816026.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-18
AI Technical Summary
During the full bonding of mobile phone display modules, OCA optical glue is easily placed inverted or inverted, resulting in device identification errors and alarms, affecting production efficiency.
Design an OCA optical glue with alignment holes. By setting an alignment through hole at the top corners of the light release film and heavy release film, and designing an alignment column in the machine, ensuring that the OCA optical glue is aligned correctly. Avoid reversal or inversion.
Through the physical anti-duty mechanism, avoid device identification errors, improve production line production efficiency, ensure correct alignment of OCA optical glue, avoid overflow and identification errors.
Smart Images
Figure CN222348938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging materials, and more specifically to an OCA optical adhesive with alignment holes. Background Art
[0002] OCA optical glue is required for full lamination of mobile phone display modules. Since heavy release film, light release film and OCA optical glue are all made of transparent materials, it is easy to put OCA optical glue upside down or inverted. At present, the alignment design of full lamination OCA optical glue generally performs corner cutting at the heavy release film and light release film at the corners. However, this corner cutting method is prone to tool error, and the shape of the inverted corner cutting changes greatly, so the device recognition error and alarm will affect the production efficiency of the production line. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to achieve alignment when fully laminating OCA optical adhesive and prevent device recognition errors and alarms.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] In order to solve the above technical problems, the utility model provides an OCA optical adhesive with alignment holes, which includes a light release film, an OCA optical adhesive body and a heavy release film which are stacked in sequence from bottom to top, and the light release film, the OCA optical adhesive body and the heavy release film are all square in shape, and the single-sided outer dimension of the OCA optical adhesive body is smaller than the single-sided outer dimension of the light release film and the heavy release film so that the light release film and the heavy release film form a single-layer area, and a first alignment through hole is respectively arranged at each of the three vertex corners of the light release film located in the single-layer area, and a second alignment through hole is respectively arranged at each of the three vertex corners of the heavy release film located in the single-layer area, and the positions and shapes of the three first alignment through holes correspond to the positions and shapes of the three second alignment through holes.
[0006] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, the outer dimensions of the three first alignment through holes are different.
[0007] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, the shapes of two of the first alignment through holes are cylindrical, and the shape of another first alignment through hole is square.
[0008] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, the thickness of the heavy release film is 100 μm, and the thickness of the light release film is 50 μm.
[0009] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, a concave-shaped through hole is provided on the light release film, and the remaining material of the concave-shaped through hole forms a film tearing handle.
[0010] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, waste material of the “concave”-shaped through hole remains on the light release film.
[0011] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, a bonding area is provided on the waste material of the "concave"-shaped through hole.
[0012] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, the “concave”-shaped through hole is arranged at the edge of the light release film.
[0013] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, each corner of the “concave”-shaped through hole is provided with a rounded corner.
[0014] As a preferred implementation of the OCA optical adhesive with alignment holes provided by the utility model, the radius of the rounded corner is 1 mm.
[0015] The utility model has the following beneficial effects:
[0016] In order to avoid overflow, the OCA optical glue body is retracted a certain distance compared to the light release film and the heavy release film, and the heavy release film has the same appearance as the light release film. When in use, three corresponding alignment posts can be designed at the box where the machine places the OCA optical glue, and inserted into the alignment through holes of the OCA optical glue. If the OCA optical glue is placed upside down, the OCA optical glue cannot be placed into the alignment post and reminds the operator, which plays a role in physical fool-proofing, avoids device recognition errors and alarms, and improves production line production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The utility model provides a schematic structural diagram of an OCA optical adhesive with alignment holes.
[0019] Figure 2 for Figure 1 Schematic diagram of the decomposition structure.
[0020] Figure 3 This is a schematic diagram of the structure of Example 2.
[0021] Figure 4 for Figure 3 Top view of the .
[0022] Figure 5 for Figure 4 Schematic diagram of the improved structure.
[0023] Description of Figure Numbers:
[0024] Light release film 1; OCA optical adhesive body 2; heavy release film 3; first alignment through hole 11; second alignment through hole 31;
[0025] A through hole 12 in the shape of a Chinese character "concave"; a film-tearing handle 13; waste material 14; and a bonding area 15. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0028] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0029] The utility model provides an OCA optical adhesive with alignment holes, which comprises a light release film, an OCA optical adhesive body and a heavy release film which are sequentially stacked from bottom to top, wherein the light release film, the OCA optical adhesive body and the heavy release film are all square in shape, the single-sided outer dimensions of the OCA optical adhesive body are smaller than the single-sided outer dimensions of the light release film and the heavy release film so that the light release film and the heavy release film form a single-layer area, a first alignment through hole is respectively arranged at each of the three vertex corners of the light release film located in the single-layer area, a second alignment through hole is respectively arranged at each of the three vertex corners of the heavy release film located in the single-layer area, and the positions and shapes of the three first alignment through holes correspond to the positions and shapes of the three second alignment through holes.
[0030] In order to avoid overflow, the OCA optical glue body is retracted a certain distance compared to the light release film and the heavy release film, and the heavy release film has the same appearance as the light release film. When in use, three corresponding alignment posts can be designed at the box where the machine places the OCA optical glue, and inserted into the alignment holes of the OCA optical glue. If the OCA optical glue is placed upside down, the OCA optical glue cannot be placed into the alignment posts and reminds the operator, which plays a role in physical fool-proofing, avoids device recognition errors and alarms, and improves production line efficiency.
[0031] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, 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 with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.
[0032] Example 1
[0033] See also Figure 1 and Figure 2, an OCA optical adhesive with alignment holes provided by the utility model, comprising a light release film 1, an OCA optical adhesive body 2 and a heavy release film 3 which are sequentially stacked from bottom to top, the light release film 1, the OCA optical adhesive body 2 and the heavy release film 3 are all in a square shape, the single-side outer dimensions of the OCA optical adhesive body 2 are smaller than the single-side outer dimensions of the light release film 1 and the heavy release film 3, so that the light release film 1 and the heavy release film 3 form a single-layer area, and the three sides of the light release film 1 located in the single-layer area A first alignment through hole 11 is provided at each of the four vertices of the light release film 1, that is, only three of the four vertices of the light release film 1 are provided with first alignment through holes 11, and a second alignment through hole 31 is provided at each of the three vertices of the heavy release film 3 located in the single-layer area, that is, only three of the four vertices of the heavy release film 3 are provided with second alignment through holes 31, and the positions and shapes of the three first alignment through holes 11 correspond to the positions and shapes of the three second alignment through holes 31. In order to avoid glue overflow, the OCA optical adhesive body 2 is retracted a certain distance compared to the light release film 1 and the heavy release film 3, and the heavy release film 3 has the same appearance as the light release film 1. When in use, three corresponding alignment posts can be designed at the box where the machine places the OCA optical adhesive, and inserted into the alignment through holes of the OCA optical adhesive. If the OCA optical glue is placed upside down or upside down, the OCA optical glue cannot be placed into the alignment column and reminds the operator, which plays a physical anti-mistake role, avoids component recognition errors and alarms, and improves production line production efficiency.
[0034] Furthermore, the outer dimensions of the three first alignment through holes 11 are different. More preferably, the three first alignment through holes 11 are cylindrical, so that it is possible to identify with the naked eye whether the sheets of OCA optical adhesive are in the same direction. If they are in opposite directions, it can be seen through the alignment through holes, because at this time the first alignment through holes 11 are not uniform. When performing full-fit identification alignment, the machine identifies the positions of the three cylindrical holes. The three cylindrical holes can form three centers of circles, that is, three points, forming a surface, which can completely determine the posture and position of the OCA optical adhesive. The three cylindrical holes can be formed by punching, the tool is simple to make, and the punching is clean and neat.
[0035] Furthermore, the three first alignment through holes 11 and the three second alignment through holes 31 are in a square or cylindrical shape.
[0036] Furthermore, two of the first alignment through holes 11 are cylindrical in shape, and another first alignment through hole 11 is square in shape.
[0037] Furthermore, the thickness of the heavy release film 3 is 100 μm, and the thickness of the light release film 1 is 50 μm.
[0038] Example 2
[0039] See also Figures 3 to 5As a further optimization scheme of Example 1, in this embodiment, a "concave" shaped through hole 12 is opened on the light release film 1, and the residual material of the "concave" shaped through hole 12 forms a film tearing handle 13, so there is no need to add a film tearing handle 13 on the periphery of the light release film 1. Therefore, the film tearing handle 13 will not be unable to be placed due to the limitation of the peripheral space, avoiding the situation where tweezers need to be used to lift the film when the peripheral space is limited, thereby saving labor costs; and the material of the peripheral film tearing handle 13 can be omitted, which can greatly reduce the material cost.
[0040] Furthermore, the waste material 14 of the “concave”-shaped through hole 12 remains on the light release film 1. Before the light release film 1 is torn off, the waste material 14 is still connected to the light release film 1, which can effectively prevent dust or other particles from entering the product surface. Since the waste material 14 is still connected to the light release film 1, it is difficult to tear off the film tearing handle 13 at this time, so an adhesive area 15 can be set on the upper surface of the waste material 14, preferably adhesive, but not limited to this. When tearing off the upper light release film 1, the waste material 14 can be torn off with the adhesive first, and then the light release film 1 can be torn off with the film tearing handle 13.
[0041] Furthermore, the “concave”-shaped through hole 12 is arranged at the edge of the light release film 1 , so that the light release film 1 is easier to tear off, and the tearing handle 13 is not damaged due to high tearing difficulty.
[0042] Furthermore, each corner of the “concave”-shaped through hole 12 is provided with a rounded corner, so that the stress during film tearing is not concentrated at the corner, thereby avoiding the film tearing handle 13 from being torn due to stress concentration, and further improving the working efficiency.
[0043] Furthermore, the radius of the rounded corner is 1 mm.
[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. An OCA optical adhesive with alignment holes, characterized in that: It includes a light release film, an OCA optical adhesive body and a heavy release film which are stacked in sequence from bottom to top, and the shapes of the light release film, the OCA optical adhesive body and the heavy release film are all square. The single-sided outer dimensions of the OCA optical adhesive body are smaller than the single-sided outer dimensions of the light release film and the heavy release film, so that the light release film and the heavy release film form a single-layer area, and a first alignment through hole is respectively arranged at each of the three vertex corners of the light release film located in the single-layer area, and a second alignment through hole is respectively arranged at each of the three vertex corners of the heavy release film located in the single-layer area, and the positions and shapes of the three first alignment through holes correspond to the positions and shapes of the three second alignment through holes.
2. The OCA optical adhesive with alignment holes according to claim 1, characterized in that: The three first alignment through holes and the three second alignment through holes are in a square or cylindrical shape.
3. The OCA optical adhesive with alignment holes according to claim 1, characterized in that: The three first alignment through holes have different dimensions.
4. The OCA optical adhesive with alignment holes according to claim 1, characterized in that: The thickness of the heavy release film is 100 μm, and the thickness of the light release film is 50 μm.
5. The OCA optical adhesive with alignment holes according to claim 1, characterized in that: The light release film is provided with a concave through hole, and the remaining material of the concave through hole forms a film tearing handle.
6. The OCA optical adhesive with alignment holes according to claim 5, characterized in that: The waste material of the "concave"-shaped through hole remains on the light release film.
7. The OCA optical adhesive with alignment holes according to claim 6, characterized in that: A bonding area is provided on the waste material of the "concave"-shaped through hole.
8. The OCA optical adhesive with alignment holes according to claim 5, characterized in that: The "concave"-shaped through hole is arranged at the edge of the light release film.
9. The OCA optical adhesive with alignment holes according to claim 5, characterized in that: Each corner of the "concave"-shaped through hole is provided with a rounded corner.
10. The OCA optical adhesive with alignment holes according to claim 9, characterized in that: The radius of the rounded corner is 1 mm.