A foam and backlight module with an easily identifiable protective film
By setting a non-transparent identification structure on the protective film of the backlight module, the problem that the protective film is easily leaked and tear off during the assembly process is solved, automated production is achieved, and product quality and productivity are improved.
Patent Information
- Application Number
- CN202421494897.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the prior art, the transparent protective film of the backlight module is easily leaked and tear off during assembly, resulting in no bonding between the TFT and the backlight, affecting the reliability of the product. Moreover, due to the transparency of the protective film, it is not easy to be discovered, resulting in a decrease in production efficiency and an increase in customer complaints.
A foam with an easy-to-identify protective film was designed. By setting a non-transparent identification structure on the protective film, the identification structure is located in the overlapping area of the protective film and foam, which facilitates machine identification, realizes automated production, and reduces interference from human factors.
By setting up an easily identifiable identification structure on the protective film, automated production is achieved, reducing the generation of defective products, improving the quality and productivity of the product, and avoiding the impact on the visual area of the backlight module.
Smart Images
Figure CN222704858U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display screen modules, in particular to a foam and backlight module with an easily identifiable protective film. Background Art
[0002] LCD (Liquid Crystal Display) liquid crystal display screens are widely used in various display products such as automotive, industrial and handheld. The TFT (Thin Film Transistor) screen in the LCD cannot emit light on its own and needs to rely on the backlight to provide light source to realize the display screen. The general display module structure is to have a circle of splicing foam on the inner side of the backlight glue frame groove, which is bonded to the polarizer surface under the TFT, and then fix the TFT in the backlight glue frame groove. A transparent protective film will be attached to the single backlight foam to protect the light-emitting area and the splicing foam adhesive surface. Generally, the cover plate and TFT are first bonded by optical glue to form a TLI component, and then the TLI component is assembled with the backlight. When the TLI component is assembled with the backlight, it is necessary to tear off the transparent protective film of the backlight slot manually or by a robot, but because the protective film is transparent and has no color, it is often missed. Due to the existence of the missed tearing of the protective film, the TFT and the backlight are not bonded, which seriously affects the reliability of the product. Because the untorn protective film is in the backlight slot and is not easy to be found, when such defective products flow into the customer end, it will cause serious customer complaints. If the product is returned for repair because the protective film is not torn off, it will also reduce product production efficiency. The above problems need to be solved urgently. Utility Model Content
[0003] The utility model discloses a foam and a backlight module with an easily identifiable protective film, aiming to solve the technical problems existing in the prior art.
[0004] The utility model adopts the following technical solutions:
[0005] On the one hand, the utility model provides a foam with an easily identifiable protective film, which includes foam, a protective film and an identification structure; the foam is a ring-shaped frame structure; the protective film is arranged on one side of the foam, and the edge is bonded to the foam; the identification structure is a non-transparent structure, which is arranged on the protective film and is located in the overlapping area of the protective film and the foam.
[0006] In the foam with an easily identifiable protective film of the utility model, the identification structure is an annular structure arranged along the edge of the protective film.
[0007] In the foam with an easily identifiable protective film of the utility model, the width of the identification structure is greater than or equal to 1 mm.
[0008] In the foam with an easily identifiable protective film of the present invention, the minimum distance between the identification structure and the inner edge of the foam is greater than or equal to 0.3 mm.
[0009] In the foam with an easily identifiable protective film of the utility model, the identification structure is arranged on a side of the protective film facing the foam.
[0010] In the foam with an easily identifiable protective film of the utility model, the identification structure is a structure arranged on the protective film by screen printing.
[0011] The foam with an easily identifiable protective film of the utility model also includes a protective film tearing handle;
[0012] One side of the protective film tearing handle is connected to the protective film, and the other side extends toward the outside of the protective film.
[0013] In the foam with an easily identifiable protective film of the utility model, one side of the foam is bonded to the protective film via a first double-sided adhesive layer, and the other opposite side is provided with a second double-sided adhesive layer.
[0014] In the foam with an easily identifiable protective film of the utility model, the position where the foam and the protective film are bonded includes the position where the identification structure is located.
[0015] In a second aspect, the utility model further provides a backlight module, which comprises any of the above-mentioned foam with an easily identifiable protective film and a backlight assembly;
[0016] The side of the foam with the easily identifiable protective film that is away from the protective film is adhered to the light emitting side of the backlight assembly.
[0017] The technical solution adopted by the utility model can achieve the following beneficial effects:
[0018] The utility model mainly provides a foam with an easily identifiable protective film. Based on setting an identification structure on the protective film, the identification structure is non-transparent to facilitate easy identification by the machine, realize automated production, reduce interference from human factors, prevent the generation of defective products, and improve product quality and productivity. The identification structure is set in the overlapping area of the protective film and the foam to avoid affecting the visual area detection of the backlight module or polluting the visual area after installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for the description of the embodiment, which constitute a part of the utility model. The schematic embodiment of the utility model and its description explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of a foam with an easily identifiable protective film according to the utility model;
[0021] Figure 2 For the utility model Figure 1 AA section view;
[0022] Figure 3 It is a structural schematic diagram of the backlight module of the utility model;
[0023] Figure 4 For the utility model Figure 3 BB cross-sectional view.
[0024] Description of reference numerals:
[0025] 1. Foam with an easily identifiable protective film; 11. Foam; 12. Protective film; 13. Logo structure; 14. Protective film tear handle; 15. First double-sided adhesive layer; 16. Second double-sided adhesive layer; 2. Backlight assembly; 21. Backlight adhesive frame; 22. Rear iron frame; 23. Light guide part; 24. LED light; 25. Viewing area. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. In the description of the utility model, it should be noted that the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise.
[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically limited.
[0028] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In order to solve the problems existing in the prior art, the embodiments of the present application provide a foam and a backlight module with an easily identifiable protective film.
[0030] like Figure 1 As shown, a foam with an easily identifiable protective film, such as Figure 1 and Figure 2 As shown, it includes foam 11, a protective film 12 and a logo structure 13; the foam 11 is a ring-shaped frame structure; the protective film 12 is arranged on one side of the foam 11, and the edge is bonded to the foam 11; the logo structure 13 is a non-transparent structure, which is arranged on the protective film 12 and is located in the overlapping area of the protective film 12 and the foam 11.
[0031] The utility model discloses a foam with an easily identifiable protective film. The identification structure 13 is arranged on the protective film 12. The identification structure 13 is non-transparent so as to be easily identifiable by a machine, thereby realizing automated production, reducing interference from human factors, preventing defective products, and improving product quality and productivity. The identification structure 13 is arranged in the overlapping area of the protective film 12 and the foam 11 to avoid affecting the visual area detection of the backlight module or polluting the visual area 25 after installation.
[0032] In some preferred embodiments, the identification structure 13 is a ring-shaped structure arranged along the edge of the protective film 12; the identification structure 13 is arranged in a ring shape, such as a square ring, which is more convenient for identification.
[0033] In some preferred embodiments, the width of the identification structure 13 is greater than or equal to 1 mm; if the width of the identification structure 13 is too small, it will affect the accurate recognition of the identification structure 13, especially when the identification structure 13 is printed on the protective film 12 by silk screen printing, it will cause defects such as unclear silk screen printing.
[0034] In some preferred embodiments, the minimum distance between the logo structure 13 and the inner edge of the foam 11 is greater than or equal to 0.3 mm; if the logo structure 13 is too close to the inner edge of the foam 11, the logo structure 13 will enter the light-emitting area of the backlight module, affecting the visual effect detection. If the silk-screen fixing method is adopted, the shedding of ink particles will also cause visual area pollution.
[0035] In some preferred embodiments, the identification structure 13 is arranged on the side of the protective film 12 facing the foam 11; the identification structure 13 is arranged on the inner side of the protective film 12, that is, sandwiched between the protective film 12 and the foam 11, which can protect the identification structure 13 and prevent it from being damaged and affecting normal recognition.
[0036] In some preferred embodiments, the logo structure 13 is a structure provided on the protective film 12 by screen printing.
[0037] In some preferred embodiments, a protective film tearing handle 14 is further included; one side of the protective film tearing handle 14 is connected to the protective film 12, and the other side extends toward the outside of the protective film 12; the provision of the protective film tearing handle 14 facilitates tearing off the protective film 12.
[0038] In some preferred embodiments, one side of the foam 11 is bonded to the protective film 12 through a first double-sided adhesive layer 15, and the other opposite side is provided with a second double-sided adhesive layer 16; the second double-sided adhesive layer 16 is used to bond to the backlight assembly 2; the first double-sided adhesive layer 15 is also used to bond to the display assembly, and the protective film 12 can protect the first double-sided adhesive layer 15.
[0039] In some preferred embodiments, the bonding position of the foam 11 and the protective film 12 includes the position of the identification structure 13, that is, at this time, the identification structure 13 is arranged on the side facing the foam 11, and the identification structure 13 is adhesively covered, thereby further protecting the identification structure 13 to ensure accurate identification.
[0040] A backlight module, such as Figure 3 and Figure 4 As shown, it includes any of the above-mentioned foam 1 with an easily identifiable protective film and a backlight assembly 2; the side of the foam 11 of the foam 1 with an easily identifiable protective film facing away from the protective film 12 is bonded to the light-emitting side of the backlight assembly 2; specifically, the foam 11 is arranged on the inner side of the backlight glue frame 21; the specific structure of the backlight assembly 2 is no different from the existing structure, and is composed of a rear iron frame 22, a light-guiding part 23 and an LED lamp.
[0041] In some preferred embodiments, the protective film tear handle 14 protrudes from the edge of the backlight assembly 2 , that is, it protrudes from the notch of the backlight glue frame 21 to the edge of the backlight glue frame 21 .
[0042] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.
Claims
1. A foam with an easily identifiable protective film, characterized in that: The foam with an easily identifiable protective film comprises foam, a protective film and a marking structure; The foam is a ring-shaped frame structure; The protective film is arranged on one side of the foam, and the edge thereof is bonded to the foam; The identification structure is a non-transparent structure, which is arranged on the protective film and located in the overlapping area of the protective film and the foam.
2. The foam with an easily identifiable protective film according to claim 1, characterized in that: The identification structure is a ring-shaped structure arranged along the edge of the protective film.
3. The foam with an easily identifiable protective film according to claim 1, characterized in that: The width of the identification structure is greater than or equal to 1 mm.
4. The foam with an easily identifiable protective film according to claim 1, characterized in that: The minimum distance between the identification structure and the inner edge of the foam is greater than or equal to 0.3 mm.
5. The foam with an easily identifiable protective film according to claim 1, characterized in that: The identification structure is arranged on a side of the protective film facing the foam.
6. The foam with an easily identifiable protective film according to claim 1, characterized in that: The identification structure is a structure arranged on the protective film by screen printing.
7. The foam with an easily identifiable protective film according to claim 1, characterized in that: It also includes a protective film tearing handle; one side of the protective film tearing handle is connected to the protective film, and the other side extends toward the outside of the protective film.
8. The foam with an easily identifiable protective film according to claim 1, characterized in that: One side of the foam is bonded to the protective film via a first double-sided adhesive layer, and the other side opposite thereto is provided with a second double-sided adhesive layer.
9. The foam with an easily identifiable protective film according to claim 1, characterized in that: The position where the foam and the protective film are bonded includes the position where the identification structure is located.
10. A backlight module, characterized in that: A foam and a backlight assembly comprising any one of claims 1 to 9 having an easily identifiable protective film; The side of the foam with the easily identifiable protective film facing away from the protective film is bonded to the light emitting side of the backlight assembly.