Display module

Abstract

The embodiment of the utility model belongs to the technical field of display modules. The utility model further relates to a display module which comprises a curved surface cover plate body and a backlight assembly, a plurality of flatness supporting mechanisms are arranged between the backlight assembly and the curved surface cover plate body, and the flatness supporting mechanisms are used for supporting the height difference between the backlight assembly and the curved surface cover plate body so as to achieve flatness of the curved surface cover plate body. Through the arranged flatness supporting mechanism, the height difference between the backlight assembly and the curved surface cover plate body can be supported, so that flatness of the curved surface cover plate body is achieved, the procedure of dispensing box dam glue in the attaching process is avoided, meanwhile, stable attaching of the curved surface cover plate body can be ensured, and the reliability and stability of a product are improved; and the complicated dispensing operation is not needed, so that the production process is simplified, the defects of bubbles and the like caused by improper dispensing operation are avoided, and the yield of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and more specifically, to a display module. Background Art

[0002] With the rapid development of modern display technology, LCM (liquid crystal module) display screen modules are widely used in various electronic devices due to their high resolution, low power consumption and excellent display effect. In the production process of LCM display screen modules, a key step is to bond the LCM with the curved cover to form a complete display unit. However, the uneven shape of the curved cover brings technical challenges to the bonding of LCM and the curved cover.

[0003] Since the curved cover plate has a non-planar curved structure, the traditional bonding method often requires a circle of dam glue to be applied between the LCM and the curved cover plate to ensure the flatness after bonding. This dam glue application process is not only complicated to operate, but also requires highly skilled workers to perform precise glue application. In addition, problems such as bubbles and uneven glue are prone to occur during the glue application process, which will directly affect the display effect and reliability of the final product. Therefore, we have made improvements to this and proposed a display module.

[0004] For example, a Chinese patent (publication number CN108468691B) discloses an AB type water-based adhesive bonding process for a curved 3D touch screen or display screen, characterized in that: in the bonding process, A glue is used as the dam glue, and the surface glue is A glue with a curing catalyst B glue added thereto. Before the surface glue is cured and after it is cured under the curing conditions, the dam glue is always in a gel state, so that the dam glue always maintains good thixotropy, and the surface glue has a flat and smooth cross-section around it. The process comprises the following steps: the curved cover plate body (1) applies dam glue on the glass cover plate of the curved 3D touch screen or display screen to form a glue frame, and the height of the dam glue is higher than the lower surface of the display module of the 3D touch screen or display screen; the backlight assembly (2) applies surface glue in the glue frame; the positioning member (3) attaches the display module to the surface glue; the optical glue layer (4) is cured; and the display assembly (5) wipes off the uncured dam glue. Utility Model Content

[0005] The technical problem to be solved by the embodiment of the utility model is that a circle of dam glue needs to be applied between the LCM and the curved cover plate to ensure the flatness after bonding. Not only is the operation complicated, but it also requires highly skilled workers to perform precise glue application. Problems such as bubbles and uneven glue are prone to occur during the glue application process.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A display module comprises: a curved cover plate main body and a backlight assembly, wherein a plurality of flatness support mechanisms are arranged between the backlight assembly and the curved cover plate main body, and the flatness support mechanisms are used to support the height difference between the backlight assembly and the curved cover plate main body so as to achieve the flatness of the curved cover plate main body. The flatness support mechanisms arranged in the present application can support the height difference between the backlight assembly and the curved cover plate main body so as to achieve the flatness of the curved cover plate main body, thereby avoiding the need for applying dam glue during the bonding process, and at the same time ensuring the stable bonding of the curved cover plate main body, thereby improving the reliability and stability of the product; there is no need to perform complicated glue dispensing operations, thereby simplifying the production process, avoiding defects such as bubbles introduced due to improper glue dispensing operations, and improving the yield rate of the product.

[0008] As an improved manner of the present utility model, the number of the flatness support mechanisms is indicated as three.

[0009] As an improved manner of the utility model, the flatness support mechanism includes a positioning plate fixedly connected to the outside of the backlight assembly, and a positioning hole is formed on the positioning plate.

[0010] As an improved manner of the utility model, the flatness support mechanism further includes a positioning member, one end of which contacts a side of the curved cover body close to the backlight assembly, and the other end of which is plugged into the positioning hole.

[0011] As an improvement of the utility model, the positioning member includes a positioning pad plugged into the positioning hole, and one end of the positioning pad close to the curved cover body is fixedly connected to a positioning column, and both sides of the positioning column are respectively in contact with the curved cover body and the positioning plate.

[0012] As an improved manner of the utility model, a display assembly is arranged between the backlight assembly and the curved cover plate body, and an optical adhesive layer is connected between the display assembly and the curved cover plate body.

[0013] As an improved manner of the utility model, the display assembly includes a display structure connected to the curved cover plate body through an optical adhesive layer, and the display structure is connected to a transmission structure.

[0014] As an improvement of the utility model, the display structure includes an upper polarizer, one side of the upper polarizer is connected to the optical adhesive layer, the other side of the upper polarizer is connected to the upper glass, the side of the upper glass away from the upper polarizer is connected to the lower glass, the side of the lower glass away from the upper glass is connected to the lower polarizer, and the lower glass is also connected to a control IC.

[0015] As an improved method of the utility model, the transmission structure includes an FPC body connected to the lower glass, one end of the FPC body passes through the backlight assembly and is folded and attached to a surface of the backlight assembly away from the curved cover body.

[0016] As an improved manner of the utility model, a surface of the FPC body away from the backlight assembly is connected with a component area and an FPC connector.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem in the prior art that a circle of dam glue needs to be applied between the LCM and the curved cover plate to ensure the flatness after bonding, which is not only complicated to operate and requires highly skilled workers to perform precise glue dispensing operations, but also prone to problems such as bubbles and uneven glue during the glue dispensing process, the present application sets up a flatness support mechanism that can support the height difference between the backlight assembly and the curved cover plate body to achieve the flatness of the curved cover plate body, thereby avoiding the need to apply dam glue during the bonding process, and at the same time ensuring the stable bonding of the curved cover plate body, thereby improving the reliability and stability of the product; there is no need to perform complicated glue dispensing operations, which simplifies the production process, avoids defects such as bubbles introduced due to improper glue dispensing operations, and improves the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the display module provided in this application;

[0020] Figure 2 The display module provided in this application Figure 1 Schematic diagram of the explosion structure;

[0021] Figure 3 The display module provided in this application Figure 1 A right view structural diagram of ;

[0022] Figure 4 A schematic diagram of the structure of the curved cover plate body of the display module provided in this application;

[0023] Figure 5 A schematic diagram of the structure of the positioning plate of the display module provided in this application.

[0024] Indicated in the figure:

[0025] 1. Curved cover body; 2. Backlight assembly; 3. Positioning piece; 301. Positioning column; 302. Positioning pad; 4. Optical adhesive layer; 5. Display assembly; 501. Upper polarizer; 502. Upper glass; 503. Lower glass; 504. Lower polarizer; 505. Control IC; 506. FPC body; 507. Component area; 508. FPC connector; 6. Positioning plate; 601. Positioning hole. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] As described in the background technology, since the curved cover plate has a non-planar curved structure, the traditional bonding method often requires a circle of dam glue to be applied between the LCM and the curved cover plate to ensure the flatness after bonding. This dam glue application process is not only complicated to operate, but also requires highly skilled workers to perform precise glue application operations. In addition, bubbles, uneven glue, and other problems are prone to occur during the glue application process, which will directly affect the display effect and reliability of the final product.

[0028] In order to solve this technical problem, the utility model provides a display module

[0029] Specifically, please refer to Figure 1-Figure 5 , the display module specifically includes:

[0030] The curved cover body 1 and the backlight assembly 2, and a plurality of flatness supporting mechanisms are arranged between the backlight assembly 2 and the curved cover body 1, and the flatness supporting mechanisms are used to support the height difference between the backlight assembly 2 and the curved cover body 1 to achieve the flatness of the curved cover body 1.

[0031] The display module provided by the utility model can support the height difference between the backlight assembly 2 and the curved cover plate main body 1 through the flatness support mechanism set up in the present application, so as to achieve the flatness of the curved cover plate main body 1, thereby avoiding the need for the step of applying dam glue during the bonding process, and at the same time ensuring the stable bonding of the curved cover plate main body 1, thereby improving the reliability and stability of the product; there is no need to perform complicated glue dispensing operations, which simplifies the production process, avoids defects such as bubbles introduced due to improper glue dispensing operations, and improves the yield rate of the product.

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] Embodiment 1 of the display module of the utility model

[0036] Please refer to Figure 1-Figure 5 The display module of the utility model includes: a curved cover plate main body 1 and a backlight assembly 2. A plurality of flatness supporting mechanisms are arranged between the backlight assembly 2 and the curved cover plate main body 1. The flatness supporting mechanism is used to support the height difference between the backlight assembly 2 and the curved cover plate main body 1 to achieve the flatness of the curved cover plate main body 1. The flatness supporting mechanism set in the present application can support the height difference between the backlight assembly 2 and the curved cover plate main body 1 to achieve the flatness of the curved cover plate main body 1, thereby avoiding the need to apply dam glue during the bonding process, and at the same time ensuring the stable bonding of the curved cover plate main body 1, thereby improving the reliability and stability of the product; there is no need to perform complicated glue dispensing operations, which simplifies the production process, avoids defects such as bubbles introduced due to improper glue dispensing operations, and improves the yield rate of the product.

[0037] Furthermore, the number of the flatness support mechanisms is indicated as three, and the positions of the three flatness support mechanisms can form a triangular distribution, so that both the X and Y directions can be taken into account to ensure flatness.

[0038] Further, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 The flatness supporting mechanism shown includes a positioning plate 6 fixedly connected to the outer side of the backlight assembly 2 , and a positioning hole 601 is formed on the positioning plate 6 .

[0039] Further, such as Figure 1-Figure 4 As shown, the flatness support mechanism also includes a positioning member 3, one end of the positioning member 3 is in contact with the side of the curved cover body 1 close to the backlight assembly 2, and the other end of the positioning member 3 is plugged into the positioning hole 601. By plugging the positioning member 3 into the positioning hole 601, the positioning member 3 can support the height between the curved cover body 1 and the backlight assembly 2, thereby enabling the display assembly 5 to remain flat.

[0040] Embodiment 2 of the display module of the present utility model

[0041] The display module of the utility model is further characterized as follows: Figure 2-Figure 5 As shown, the positioning member 3 includes a positioning pad 302 plugged into the positioning hole 601, and the positioning pad 302 is fixedly connected to one end of the curved cover body 1 close to the positioning column 301. The two sides of the positioning column 301 are respectively in contact with the curved cover body 1 and the positioning plate 6. After the positioning pad 302 is plugged into the positioning plate 6, the height between the curved cover body 1 and the backlight assembly 2 can be supported by the positioning pad 302, thereby enabling the display assembly 5 to remain flat.

[0042] Embodiment 3 of the display module of the utility model

[0043] The display module of the utility model is further characterized as follows: Figure 2 As shown, a display component 5 is arranged between the backlight component 2 and the curved cover body 1, and an optical adhesive layer 4 is connected between the display component 5 and the curved cover body 1. The optical adhesive layer 4 is OCR optical adhesive or OCA optical adhesive. OCR optical adhesive is a special adhesive mainly used for bonding transparent optical components. It has the characteristics of high transparency, low hardness, low shrinkage, high light transmittance, and yellowing resistance. After curing, the OCR glue is colorless and transparent, and the light transmittance can reach more than 98%. It has the characteristics of small curing shrinkage and yellowing resistance. Using OCR optical adhesive for full bonding of the display component 5 and the curved cover body 1 can ensure that there is no gap between the display component 5 and the curved cover body 1, effectively reduce the loss of light reflection and light transmission, thereby providing a clearer and brighter display effect; OCR optical adhesive can ensure that the display component 5 and the curved cover body 1 are completely sealed, effectively isolate foreign matter such as dust and water vapor from entering, and extend the service life of the equipment;

[0044] OCA optical glue has extremely high transparency, which can ensure that the screen has excellent display effects after bonding, without obvious color difference or light spots; OCA optical glue has excellent bonding properties, which can ensure close fit between the display component 5 and the curved cover body 1, avoiding the generation of bubbles and gaps; OCA optical glue has excellent weather resistance, and can maintain stable performance under different environmental conditions, and will not be affected by changes in temperature, humidity and other factors. Its bonding effect; OCA optical glue can ensure seamless fit between the display component 5 and the curved cover body 1, avoiding the scattering and reflection of light in the air layer, thereby improving the display effect.

[0045] Furthermore, the display assembly 5 includes a display structure connected to the curved cover plate body 1 through an optical adhesive layer 4, and the display structure is connected to a transmission structure.

[0046] Further, such as Figure 2 As shown, the display structure includes an upper polarizer 501, one side of the upper polarizer 501 is connected to the optical adhesive layer 4, the other side of the upper polarizer 501 is connected to an upper glass 502, the side of the upper glass 502 away from the upper polarizer 501 is connected to a lower glass 503, the side of the lower glass 503 away from the upper glass 502 is connected to a lower polarizer 504, and the lower glass 503 is also connected to a control IC 505; the main function of the upper polarizer 501 is to control the direction and intensity of light to ensure that a clear image with uniform brightness can be displayed. The upper polarizer 501 can selectively allow light in a specific direction to pass through, while preventing light from other directions from being transmitted. This change will be captured by the upper polarizer 501 and the lower polarizer 504, thereby forming a displayed image.

[0047] Further, such as Figure 2-Figure 3 As shown, the transmission structure includes an FPC body 506 connected to the lower glass 503. One end of the FPC body 506 passes through the backlight assembly 2 and is folded and attached to the side of the backlight assembly 2 away from the curved cover body 1. The FPC body 506 is used for signal transmission.

[0048] Further, such as Figure 2-Figure 3 As shown, a side of the FPC body 506 away from the backlight assembly 2 is connected with a component area 507 and an FPC connector 508 , and the FPC connector 508 is used to connect the FPC body 506 with other components.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The 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 disclosure of the utility model more thorough and comprehensive. Although the utility model 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 replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A display module, characterized in that: include: A curved cover plate body (1) and a backlight assembly (2), wherein a plurality of flatness support mechanisms are arranged between the backlight assembly (2) and the curved cover plate body (1), and the flatness support mechanisms are used to support the height difference between the backlight assembly (2) and the curved cover plate body (1) so as to achieve flatness of the curved cover plate body (1).

2. The display module according to claim 1, characterized in that: The number of the flatness supporting mechanisms is indicated as three.

3. The display module according to claim 2, characterized in that: The flatness support mechanism comprises a positioning plate (6) fixedly connected to the outside of the backlight assembly (2), and a positioning hole (601) is provided on the positioning plate (6).

4. The display module according to claim 3, characterized in that: The flatness support mechanism further comprises a positioning member (3), one end of the positioning member (3) being in contact with a side of the curved cover plate body (1) close to the backlight assembly (2), and the other end of the positioning member (3) being plugged into the positioning hole (601).

5. The display module according to claim 4, characterized in that: The positioning member (3) comprises a positioning pad (302) plugged into the positioning hole (601), one end of the positioning pad (302) close to the curved cover plate body (1) is fixedly connected to a positioning column (301), and two sides of the positioning column (301) are respectively in contact with the curved cover plate body (1) and the positioning plate (6).

6. The display module according to claim 5, characterized in that: A display assembly (5) is arranged between the backlight assembly (2) and the curved cover plate body (1), and an optical adhesive layer (4) is connected between the display assembly (5) and the curved cover plate body (1).

7. The display module according to claim 6, characterized in that: The display assembly (5) comprises a display structure connected to the curved cover plate body (1) via an optical adhesive layer (4), and the display structure is connected to a transmission structure.

8. The display module according to claim 7, characterized in that: The display structure comprises an upper polarizer (501), one side of the upper polarizer (501) being connected to an optical adhesive layer (4), the other side of the upper polarizer (501) being connected to an upper glass (502), a side of the upper glass (502) away from the upper polarizer (501) being connected to a lower glass (503), a side of the lower glass (503) away from the upper glass (502) being connected to a lower polarizer (504), and a control IC (505) being further connected to the lower glass (503).

9. The display module according to claim 8, characterized in that: The transmission structure comprises an FPC body (506) connected to the lower glass (503); one end of the FPC body (506) passes through the backlight assembly (2) and is folded and attached to a surface of the backlight assembly (2) away from the curved cover plate body (1).

10. The display module according to claim 9, characterized in that: A side of the FPC body (506) away from the backlight assembly (2) is connected to a component area (507) and an FPC connector (508).

Images