Display module
By introducing a black anti-glare layer and a black structure adjacent to the PET layer into the black functional film of the Mini LED display module, the problem of whitening at the edges after cutting the black functional film is solved, and the splicing effect of the display module is improved.
Patent Information
- Application Number
- CN202423179191.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing Mini LED display modules are prone to edge whitening during the cutting of the black functional film, resulting in modularity after splicing and affecting the splicing effect.
The design employs a black anti-glare layer and a PET layer that are at least adjacent to a black structure to ensure that the cut damage area is essentially black. By introducing a black structure into the black functional film to cover the damage, the whitening of the edges is improved.
It effectively improved the problem of whitening at the edges of the black functional film and enhanced the splicing effect of the display module.
Smart Images
Figure CN223712769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display module. BACKGROUND
[0002] The packaging process of the Mini LED display screen is mainly COB packaging. With the development of Mini LED and market demand, various packaging methods have emerged, among which a common packaging method is mold pressing + film pasting process. The mold pressing + film pasting process mainly includes the following steps: first, using a mold pressing machine to package the lamp surface of the module lamp panel with glue, and then using a roll pasting device to paste a black functional film on the packaged lamp surface of the module lamp panel. At present, the black functional film on the market is usually made by selecting transparent PET, making a transparent anti-glare layer on one side of the transparent PET, coating the other side of the transparent PET with black, forming a black layer, and then coating transparent glue on the black layer to bond the black functional film to the lamp surface of the module lamp panel. However, it is found in actual application that the black functional film with this structure is prone to edge whitening when the transparent anti-glare layer and the transparent PET are damaged during film cutting, which can cause the display module to have obvious modularization after screen splicing, thereby affecting the splicing effect of the display module. CONTENT OF THE UTILITY MODEL
[0003] The embodiments of the present application provide a display module, aiming to improve the technical problem that the black functional film used by the existing display module is prone to edge whitening, which can cause the display module to have obvious modularization after screen splicing, thereby affecting the splicing effect of the display module.
[0004] To this end, the embodiments of the present application provide a display module, which comprises a module lamp panel and a black functional film. The black functional film comprises a black anti-glare layer, a PET layer and an adhesive layer. The black anti-glare layer, the PET layer and the adhesive layer are sequentially stacked on the lamp surface of the module lamp panel, and at least one side of the PET layer adjacent to the black anti-glare layer is black.
[0005] Optionally, in some embodiments of the present application, the black anti-glare layer is a polyester glue layer doped with black particles or a polyurethane glue layer doped with black particles.
[0006] Optionally, in some embodiments of the present application, the light transmittance of the black anti-glare layer is 70% to 90%.
[0007] Optionally, in some embodiments of the present application, the PET layer comprises a first black coating layer and a transparent PET main body layer. The first black coating layer is stacked between the black anti-glare layer and the transparent PET main body layer.
[0008] Optionally, in some embodiments of the present application, the PET layer further comprises a second black coating layer, which is arranged in a stack between the transparent PET main layer and the adhesive layer.
[0009] Optionally, in some embodiments of the present application, the first black coating layer is a carbon powder coating layer; and / or,
[0010] the second black coating layer is a carbon powder coating layer.
[0011] Optionally, in some embodiments of the present application, the PET layer comprises a black PET main layer, which is a transparent PET film material doped with black particles.
[0012] Optionally, in some embodiments of the present application, the light transmittance of the PET layer is 30% to 70%.
[0013] Optionally, in some embodiments of the present application, the adhesive layer is transparent OCA glue or black transparent glue.
[0014] Optionally, in some embodiments of the present application, the module lamp panel comprises a lamp panel body, a packaging protection layer, and a plurality of lamp beads, the plurality of lamp beads are arranged in an array on one side surface of the lamp panel body, and the packaging protection layer covers the plurality of lamp beads.
[0015] The technical scheme provided by the present application, through the above structure, makes the black functional film not only have a black structure in the anti-glare layer on the top layer, but also have a black structure in the PET layer adjacent to the black anti-glare layer on one side. Therefore, when the black functional film is cut, the cutting damage is also basically black, which effectively improves the phenomenon of white edges of the black functional film, and improves the splicing effect of the display module. Therefore, the technical scheme can effectively improve the problem of white edges of the black functional film used in the existing display module, which leads to obvious modularization phenomenon of the display module after splicing, and affects the splicing effect of the display module. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0017] Figure 1 is a structural schematic diagram of the display module in the embodiments of the present application;
[0018] Figure 2 isFigure 1 The diagram shows the first structural design of the module light panel.
[0019] Figure 3 for Figure 1 The diagram shows a second structural design of the module light panel.
[0020] Figure 4 for Figure 1 The diagram shows the third structure of the module light panel;
[0021] Figure 5 for Figure 1 The diagram shows the fourth structure of the module light panel;
[0022] Figure 6 for Figure 1 The diagram shows the fifth structural design of the module light panel. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0025] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed in this application.
[0026] In one embodiment, such as Figures 1 to 6As shown, the display module 100 provided by the embodiment of the present application mainly comprises a module lamp plate 110 and a black functional film 120. The black functional film 120 comprises a black anti-glare layer 121, a PET layer 122 and an adhesive layer 123. The black anti-glare layer 121, the PET layer 122 and the adhesive layer 123 are sequentially stacked on the lamp surface of the module lamp plate 110, and at least one side of the PET layer 122 adjacent to the black anti-glare layer 121 is black structure.
[0027] It can be understood that the display module 100 of the embodiment of the present application can not only be displayed alone, but also can be applied in a display screen to be arranged in a certain mode by a plurality of display modules 100 to form a corresponding display module 100. The display module 100 of the embodiment of the present application can adopt a bottom shell structure design or a bottom shell-free structure design. When the bottom shell structure design is adopted, the display module 100 comprises a module bottom shell (not shown) in addition to the module lamp plate 110. The module bottom shell is arranged on the side surface of the module lamp plate 110 away from the lamp surface. Generally, the thickness of the black anti-glare layer 121 is 5 μm to 15 μm, the thickness of the PET layer 122 is 25 μm to 150 μm, and the thickness of the adhesive layer 123 is 25 μm to 150 μm. Since the adhesive layer 123 and the side of the PET layer 122 close to the adhesive layer 123 are located at the bottom layer or the position close to the bottom layer of the black functional film 120, even if a slight edge whitening phenomenon occurs, it will be covered by the black anti-glare layer 121 at the top layer and the black structure part of the PET layer 122 close to the top layer.
[0028] In addition, the black anti-glare layer 121 mentioned above specifically refers to the anti-glare layer which appears black in vision and retains certain light transmission characteristics. Similarly, the side of the PET layer 122 adjacent to the black anti-glare layer 121 is black structure, which specifically refers to the part of the black structure which appears black in vision and retains certain light transmission characteristics.
[0029] In this way, the display module 100 in the embodiment of the present application, through the above structure, makes the black functional film 120 not only the anti-glare layer at the top layer be black structure, but also the side of the PET layer 122 at the middle layer adjacent to the black anti-glare layer 121 be black structure. Therefore, when the black functional film 120 is cut, the damage part of the cutting is basically black, thereby effectively improving the edge whitening phenomenon of the black functional film 120 and improving the splicing effect of the display module 100.
[0030] In some examples, as Figures 2 to 6As shown, the black anti-glare layer 121 is a polyester adhesive layer or a polyurethane adhesive layer doped with black particles. Thus, through the above structural configuration, the black anti-glare layer 121 possesses good anti-glare and light transmittance properties while ensuring that it appears visually black, effectively preventing the edge whitening phenomenon. Furthermore, the light transmittance of the black anti-glare layer 121 is 70%–90%. Thus, through the above parameter settings, it is ensured that the black anti-glare layer 121 appears visually black while not affecting the normal light emission display of the module light panel 110.
[0031] It is understood that the black particles mentioned in this example are specifically tiny particles that are black in color but will not have a significant impact on the light transmittance of the black anti-glare layer 121. For example, they can be toner particles. By incorporating a certain proportion of toner particles into the polyester adhesive layer or polyurethane adhesive layer, the black anti-glare layer 121 can be visually presented as black while meeting the aforementioned light transmittance requirements.
[0032] In some examples, such as Figures 2 to 4 As shown, the PET layer 122 includes a first black coating layer 1221 and a transparent PET body layer 1222. The first black coating layer 1221 is stacked between the black anti-glare layer 121 and the transparent PET body layer 1222. Thus, with this structural arrangement, at least one side of the PET layer 122 adjacent to the black anti-glare layer 121 is black, ensuring that the edges do not turn white after damage to the PTE layer, or even if slight edge whitening occurs, it will be covered by the top black anti-glare layer 121 and the first black coating layer 1221 near the top. Furthermore, the PET layer 122 also includes a second black coating layer 1223, which is stacked between the transparent PET body layer 1222 and the adhesive layer 123. Thus, through the above structural arrangement, it is possible to ensure that not only the side of the PET layer 122 adjacent to the black anti-glare layer 121 is black, but also the side adjacent to the adhesive layer 123 is black. This further ensures that the PTE layer will not turn white at the edges after damage, or even if slight whitening occurs, it will be covered by the black anti-glare layer 121 on the top layer and the first black coating layer 1221 and the second black coating layer 1223 on both sides of the transparent PET main body layer 1222.
[0033] It can be understood that the first black coating layer 1221 in the example can be a black coating layer, that is, a coating layer formed by blackening the side of the transparent PET main layer 1222 close to the black anti-glare layer, and retaining certain light transmission properties. Similarly, the second black coating layer 1223 in the example can be a black coating layer, that is, a coating layer formed by blackening the side of the transparent PET main layer 1222 close to the bonding layer 123, and retaining certain light transmission properties.
[0034] In some examples, as shown in Figures 2 to 4 The first black coating layer 1221 can be a carbon powder coating layer. The second black coating layer 1223 can be a carbon powder coating layer. In this way, through the above structural arrangement, it can be better ensured that both sides of the transparent PET main layer 1222 are black structures, while the overall PTE layer has a more ideal light transmittance to meet the light transmittance requirements of the entire black functional film 120.
[0035] In some examples, as shown in Figure 5 and Figure 6 The PET layer 122 includes a black PET main layer 1224, which is a transparent PET film material doped with black particles. In this way, through the above structural arrangement, the entire PET layer 122 can be black, so as to completely ensure that the entire PTE layer will not appear edge whitening after damage. Further, the light transmittance of the PET layer 122 is 30% to 70%. In this way, through the above parameter setting, it can be ensured that the PET layer 122 appears black in vision while ensuring that the PET layer 122 will not affect the normal light display of the lamp surface of the module lamp panel 110.
[0036] It can be understood that the black particles mentioned in the example are some small particles with black color, which will not greatly affect the light transmission properties of the black anti-glare layer 121. For example, it can be a carbon powder particle. By doping a certain proportion of carbon powder particles into the PET film material, the PET layer 122 can be visually black while meeting the above light transmittance requirements.
[0037] In some examples, as shown in Figures 2 to 6 The bonding layer 123 is transparent OCA glue or black transparent glue. In this way, through the above structural arrangement, it can be ensured that the bonding layer 123 can firmly paste the black functional film 120 on the lamp surface of the module lamp panel 110 while not affecting the normal light display of the lamp surface of the module lamp panel 110. Compared with transparent OCA glue, black transparent glue can further improve the edge whitening phenomenon of the black functional film 120 to improve the splicing effect of the display module 100.
[0038] In some examples, as shown in Figure 1As shown, the module lamp panel 110 comprises a lamp panel body 111, an encapsulation protective layer 112, and a plurality of lamp beads 113 arranged in an array on one side surface of the lamp panel body 111, and the encapsulation protective layer 112 covers the plurality of lamp beads 113. In this way, the encapsulation protective layer 112 can effectively protect the plurality of lamp beads 113.
[0039] It can be understood that the lamp bead 113 mentioned above can be an LED chip unit, and each LED chip unit can specifically comprise R / G / B three chips. The module lamp panel 110 further comprises a plurality of driving ICs (not shown) arranged on the other side surface of the lamp panel body 111, so as to drive the plurality of lamp beads 113 to work through the plurality of driving ICs, thereby realizing the normal display function of the module lamp panel 110. In the present example, the encapsulation protective layer 112 can be formed by a molding mechanism to cover the surface of the plurality of lamp beads 113. In addition, some particles with diffusion characteristics can be doped in the encapsulation protective layer 112 to improve the light diffusion performance of the encapsulation protective layer 112, so as to realize uniform light distribution of the display module 100.
[0040] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently. The modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A display module, characterized by The module lamp panel comprises a module lamp panel and a black functional film, the black functional film comprises a black anti-glare layer, a PET layer and an adhesive layer, the black anti-glare layer, the PET layer and the adhesive layer are sequentially stacked on the lamp surface of the module lamp panel, and at least one side of the PET layer adjacent to the black anti-glare layer is black structure.
2. The display module of claim 1, wherein, The light transmittance of the black anti-glare layer is 70%-90%.
3. The display module of claim 1, wherein, The PET layer comprises a first black coating layer and a transparent PET main body layer, and the first black coating layer is stacked between the black anti-glare layer and the transparent PET main body layer.
4. The display module of claim 3, wherein, The PET layer further comprises a second black coating layer, and the second black coating layer is stacked between the transparent PET main body layer and the adhesive layer.
5. The display module of claim 4, wherein, The first black coating layer is a carbon powder coating layer; and / or The second black coating layer is a carbon powder coating layer.
6. The display module of claim 1, wherein, The light transmittance of the PET layer is 30%-70%.
7. The display module of claim 1, wherein, The adhesive layer is transparent OCA glue or black transparent glue.
8. The display module of any of claims 1-7, wherein, The module lamp panel comprises a lamp panel body, a packaging protection layer and a plurality of lamp beads, a plurality of lamp beads are arrayed on one side surface of the lamp panel body, and the packaging protection layer covers a plurality of lamp beads.