Display device

Abstract

The application discloses a display device, comprising a shielding film and a liquid crystal display module which are arranged in a stack; a first side of the shielding film is connected with a first side of the liquid crystal display module; the shielding film is provided with a lug, the lug comprising a first folded edge and a second folded edge, the first folded edge being a folded edge of the shielding film which is folded towards the liquid crystal display module, the first folded edge being connected with a second side of the liquid crystal display module, one end of the second folded edge being connected with the first folded edge, and the other end of the second folded edge being connected with a third side of the liquid crystal display module, the first side of the liquid crystal display module and the third side of the liquid crystal display module being two oppositely arranged sides of the liquid crystal display module, and the second side of the liquid crystal display module being located between the first side of the liquid crystal display module and the third side of the liquid crystal display module. Compared with a flat lug, the limited design space of the touch screen module can be saved, and thus the effective space utilization rate of the touch screen module is improved.

Description

Technical Field

[0001] This application belongs to the field of display device technology, and specifically relates to a display device. Background Technology

[0002] From smartphones to car rearview mirrors, advertising displays, tablets, and other fields, various displays are needed to achieve display functions. Among them, the narrow bezel design of the display has become a standard feature to improve the aesthetics and functional integration of the product.

[0003] Currently, the lugs in touch screen modules included in displays are usually flat, meaning they protrude from the edge of the optical film. This causes the lugs to occupy the limited design space of the touch screen module, resulting in a low effective space utilization rate for the touch screen module. Summary of the Invention

[0004] This application provides a display device that solves the problem of low effective space utilization in touch screen modules.

[0005] This application provides a display device, including a shielding film and a liquid crystal display module stacked together;

[0006] The first side of the shielding film is connected to the first side of the liquid crystal display module;

[0007] The shielding film is provided with lugs, each lug including a first folded edge and a second folded edge. The first folded edge is a folded edge that folds from the shielding film toward the liquid crystal display module. The first folded edge is connected to the second side of the liquid crystal display module. One end of the second folded edge is connected to the first folded edge, and the other end of the second folded edge is connected to the third side of the liquid crystal display module. The first side and the third side of the liquid crystal display module are two opposite sides of the liquid crystal display module. The second side of the liquid crystal display module is located between the first side and the third side of the liquid crystal display module.

[0008] Optionally, the display module further includes a touch screen, and the second side of the shielding film is connected to the touch screen. The first side and the second side of the shielding film are two opposite sides of the shielding film.

[0009] Optionally, the display device further includes a first adhesive, through which the shielding film is connected to the liquid crystal display module and the touch screen.

[0010] Optionally, the display device further includes a second adhesive for connecting the second folded edge to the third side of the liquid crystal display module.

[0011] Optionally, the vertical projection of the second folded edge onto the liquid crystal display module is located within the area where the liquid crystal display module is situated.

[0012] Optionally, the thickness of the second folded edge is greater than or equal to 4 mm and less than or equal to 6 mm.

[0013] Optionally, the first adhesive is an optical adhesive, and the second adhesive is at least one of conductive foam, conductive adhesive, copper foil, and aluminum foil.

[0014] Optionally, the area of ​​the lug near the liquid crystal display module has a grid pattern of continuous sinusoidal wave-shaped metal bridge structure.

[0015] Optionally, the number of lugs is two, and the two lugs are located on the same side of the shielding film, or the two lugs are located on different sides of the shielding film.

[0016] Optionally, the lug has a square structure.

[0017] In this embodiment, the display device includes a shielding film and a liquid crystal display module stacked together. A first side of the shielding film is connected to a first side of the liquid crystal display module. The shielding film has tabs, each tab including a first folded edge and a second folded edge. The first folded edge is a folded edge that folds from the shielding film toward the liquid crystal display module. The first folded edge is connected to a second side of the liquid crystal display module. One end of the second folded edge is connected to the first folded edge, and the other end of the second folded edge is connected to a third side of the liquid crystal display module. The first and third sides of the liquid crystal display module are two opposite sides of the liquid crystal display module, and the second side of the liquid crystal display module is located between the first and third sides. By providing tabs with a first and second folded edge on the shielding film, and connecting the folded tabs to the back panel of the liquid crystal display module, the limited design space of the touch screen module can be saved compared to flat tabs, thereby improving the effective space utilization rate of the touch screen module. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the shielding film provided in an embodiment of this application;

[0019] Figure 2 This is a plan view of the display device provided in an embodiment of this application;

[0020] Figure 3 This is a cross-sectional schematic diagram of the display device provided in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the folded lug in the liquid crystal display module;

[0022] Figure 5 yes Figure 4 Enlarged view of part of the structure. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specified order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] Currently, in various display devices on the market, from smartphones to car rearview mirrors, advertising machines, tablets and other fields, narrow bezels have become a standard feature to improve the aesthetics and functional integration of products, and have become the mainstream development trend. Display products are also gradually developing towards thinner designs.

[0026] In the civil aviation market of the aerospace industry, aviation equipment has extremely high requirements for weight and space. Optimizing the structural layout, reducing volume and weight redundancy, and adapting to the installation space constraints of aviation equipment all require optimization of the structural design of display products. The core of structural size optimization is to minimize product volume and weight, and improve product assembly compatibility and portability, without reducing shielding performance or affecting module functionality.

[0027] For entertainment display modules in civil aircraft, lightweight and compact design are among the core requirements. The optimization process must follow the principles of "lightweight, compact, and standardized". Every bit of weight redundancy and every inch of wasted space may affect the fuel efficiency and assembly compatibility of the aircraft. Therefore, its size optimization needs to achieve a higher level of synergistic balance with shielding performance.

[0028] When designing display products, customers have requirements for narrow bezels and electromagnetic shielding in their overall design. In order to balance the two design requirements, this application adds a shielding film between the touch screen and the LCD display module. The shielding film tabs are bent to the back panel of the module and then fixed with conductive tape to ensure that the product achieves shielding performance. At the same time, bending the shielding film tabs can reduce the size of the touch screen cover, ensuring that the product's overall size is minimized, saving design space, and realizing the design of narrow bezels.

[0029] The following provides a detailed description of the display device provided in this application.

[0030] Please see Figures 1 to 3 The display device provided in this application embodiment includes a shielding film 10 and a liquid crystal display module 20 stacked together;

[0031] The first side of the shielding film 10 is connected to the first side of the liquid crystal display module 20;

[0032] The shielding film 10 is provided with a lug 11, which includes a first folded edge 111 and a second folded edge 112. The first folded edge 111 is a folded edge that folds from the shielding film 10 toward the liquid crystal display module 20. The first folded edge 111 is connected to the second side of the liquid crystal display module 20. One end of the second folded edge 112 is connected to the first folded edge 111, and the other end of the second folded edge 112 is connected to the third side of the liquid crystal display module 20. The first side and the third side of the liquid crystal display module 20 are two opposite sides of the liquid crystal display module. The second side of the liquid crystal display module 20 is located between the first side and the third side of the liquid crystal display module 20.

[0033] It should be understood that the liquid crystal display module 20 is overlapped with the shielding film 10. The liquid crystal display module 20 is a modular product that integrates the liquid crystal display panel with components such as the driving circuit and backlight, and is the core component of the display terminal device. The shielding film 10 is a functional film used to suppress electromagnetic interference, improve signal integrity, and improve electromagnetic compatibility.

[0034] In an optional embodiment, the liquid crystal display module 20 and the shielding film 10 can be fully bonded together using optical adhesive. The optical adhesive is used for bubble-free bonding between the shielding film 10 and the liquid crystal display module, and has the functions of interface anti-reflection, anti-reflection, and impact resistance.

[0035] The shielding film 10 is provided with a lug 11, which is a section protruding from the edge of the shielding film 10, used for grounding and mechanical limiting. In related technologies, the lug 11 is flat. In this embodiment, the lug 11 is a folded structure. Specifically, the folded structure includes a first folded edge 111 and a second folded edge 112. The first folded edge 111 is formed by folding towards the direction of the liquid crystal display module 20, and the folded first folded edge 111 is attached to the third side of the liquid crystal display module 20. The third side can be the side where the thickness of the liquid crystal display module 20 is located. After the first folded edge 111 is completely attached to the side where the thickness of the liquid crystal display module 20 is located, the remaining lug 11 continues to fold along the second side of the liquid crystal display module 20. Finally, the folded structure is completely attached to the second side of the liquid crystal display module 20, forming the second folded edge 112. In this way, by folding the lug 11 along the liquid crystal display module 20, compared with the flat lug 11, the bending of the shielding film 10 lug 11 can save the size of the touch screen, give more design space to the whole machine, reduce the size of the whole machine, and thus achieve the goal of lightweighting and compactness.

[0036] It should be understood that the shielding film 10 is usually provided with two lugs 11, both of which are set as folding structures, thereby further saving the limited design space of the touch screen module.

[0037] In an alternative embodiment, such as Figure 1 As shown, the shielding film 10 has two lugs 11, which are positioned opposite each other on both sides of the shielding film 10. The lug 11 on the top side is located at 1 / 4 of the distance from the right edge of the touchscreen. The lug 11 on the ground side (i.e., the side where the circuit board is located) is located at 1 / 6 of the distance from the right edge of the touchscreen. It should be noted that the position of the lugs 11 can be adjusted according to the overall structure of the client device during the design of the shielding film 10 product; this embodiment does not limit this adjustment.

[0038] In an optional embodiment, the lug 11 may be a square structure, a circular structure, or other irregular shape.

[0039] In an optional embodiment, when the lug 11 has a square structure, the size of the square lug 11 can be set to 25mm*13mm.

[0040] In this embodiment, the display device includes a shielding film 10 and a liquid crystal display module 20 stacked together. A first side of the shielding film 10 is connected to a first side of the liquid crystal display module 20. The shielding film 10 is provided with a lug 11, which includes a first folded edge 111 and a second folded edge 112. The first folded edge 111 is a folded edge that folds from the shielding film 10 toward the liquid crystal display module 20. The first folded edge 111 is connected to a second side of the liquid crystal display module 20. One end of the second folded edge 112 is connected to the first folded edge 111, and the other end of the second folded edge 112 is connected to a third side of the liquid crystal display module 20. The first side and the third side of the liquid crystal display module 20 are two oppositely disposed sides of the liquid crystal display module, and the second side of the liquid crystal display module 20 is located between the first side and the third side of the liquid crystal display module 20. By setting the lug 11 of the shielding film 10 to include a first folded edge 111 and a second folded edge 112, the folded lug 11 is connected to the back plate of the liquid crystal display module 20. In this way, compared with the flat lug 11, the limited design space of the touch screen module can be saved, thereby improving the effective space utilization of the touch screen module.

[0041] Optionally, the display module further includes a touch screen 30, and the second side of the shielding film 10 is connected to the touch screen 30. The first side and the second side of the shielding film 10 are two sides of the shielding film 10 that are arranged opposite to each other.

[0042] It should be understood that the touchscreen 30 is also bonded to the shielding film 10. In an optional embodiment, the touchscreen 30 and the shielding film 10 can be fully bonded together using optical adhesive, wherein the optical adhesive is used for bubble-free bonding between the shielding film 10 and the touchscreen 30, and has the functions of interface anti-reflection, anti-reflection, and impact resistance.

[0043] The touchscreen 30 and the liquid crystal display module 20 are disposed opposite each other on the shielding film 10. It should be understood that the touchscreen 30 can be designed as a multi-layered device due to its technology. For example, in the case of an external touchscreen 30, it can have a three-layer structure consisting of a cover plate, a touch sensing layer, and an adhesive layer. Alternatively, in the case of an embedded touchscreen 30, the touchscreen is embedded within the panel, resulting in fewer layers compared to an external touchscreen 30, thus allowing for a thinner stacked layer.

[0044] Optionally, the display device further includes a first adhesive 40, through which the shielding film 10 is connected to the liquid crystal display module 20 and the touch screen 30.

[0045] In this embodiment, by providing the first adhesive member 40, the shielding film 10 and the liquid crystal display module 20 can be bonded and connected through the first adhesive member 40, and the shielding film 10 and the touch screen 30 can also be bonded and connected through the first adhesive member 40, thereby improving the connection stability between the various layers.

[0046] In an optional embodiment, the first adhesive 40 may be an optical adhesive, which has the functions of interface anti-reflection, anti-reflection and impact resistance, so that when the shielding film 10 is bonded to the liquid crystal display module, the two can form a bubble-free bond.

[0047] Optionally, the display device further includes a second adhesive for connecting the second folded edge 112 to the third side of the liquid crystal display module 20.

[0048] In this embodiment, by providing a second adhesive member 50, the second adhesive member 50 can connect the second folded edge 112 to the third side of the liquid crystal display module 20, thereby improving the connection stability between the second folded edge 112 and the liquid crystal display module 20.

[0049] In an optional embodiment, the second adhesive element 50 can be made of a material that has adhesive properties and is also conductive, thereby improving the connection stability between the folding structure and the liquid crystal display module 20, and also having better shielding performance.

[0050] In an optional embodiment, the folded lug 11 can also be measured to determine the folded structure by measuring the resistance of the shielding film 10.

[0051] Optionally, the second folded edge 112 is located in the area where the liquid crystal display module 20 is situated, with its vertical projection onto the liquid crystal display module 20.

[0052] Optionally, the thickness of the second folded edge 112 is greater than or equal to 4 mm and less than or equal to 6 mm.

[0053] It should be understood that the folding height of the second folding edge 112 can also be the folding height that enables the shielding function, and this embodiment does not limit this.

[0054] Optionally, the first adhesive 40 is an optical adhesive, and the second adhesive 50 is at least one of conductive foam, conductive adhesive, copper foil, and aluminum foil.

[0055] Optionally, such as Figure 4 and Figure 5 As shown, the area 113 of the lug 11 near the liquid crystal display module has a grid pattern of continuous sinusoidal wave-shaped metal bridge structure.

[0056] It should be understood that the substrate of the shielding film 10 is PET, which is plated with a metal layer and then etched to form an irregular mesh structure, thereby achieving the shielding effect. In this embodiment, in order to achieve bendability, the process pattern of the lug 11 needs to be adjusted. The mesh is designed differently from the shielding film mesh to the transition area mesh 113 and then to the bending area 114. The transition area mesh adopts a continuous sinusoidal wave-shaped metal bridge structure, with the wave crest contacting the lower edge of the bending area mesh and the wave trough contacting the upper edge of the shielding film 10 body mesh. The wave curve is smooth without sharp corners, and all turning points must use rounded corners (avoiding 90° sharp corners) to reduce stress concentration during bending and ensure that the lines can be stretched and deformed without breaking during bending. At the same time, the bending area adopts the same irregular mesh pattern design as the shielding film 10, but the mesh density of the bending area is greater than that of the shielding film 10 to avoid wire breakage.

[0057] In this embodiment, the transition area of ​​the lug 11 (i.e., the area 113 near the liquid crystal display module) is set to a continuous sinusoidal wave-shaped metal bridge structure to reduce the risk of wire breakage when bent, thereby achieving shielding effectiveness.

[0058] In an optional embodiment, the shape of the transition region grid 113 line can also be set to a circle, square, rhombus, irregular shape, etc., which is not limited in this embodiment.

[0059] Optionally, the number of lugs 11 is two, and the two lugs 11 are located on the same side of the shielding film 10, or the two lugs 11 are located on different sides of the shielding film 10.

[0060] Optionally, the lug 11 has a square structure.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A display device, characterized in that, This includes a layered shielding film and a liquid crystal display module; The first side of the shielding film is connected to the first side of the liquid crystal display module; The shielding film is provided with lugs, each lug including a first folded edge and a second folded edge. The first folded edge is a folded edge that folds from the shielding film toward the liquid crystal display module. The first folded edge is connected to the second side of the liquid crystal display module. One end of the second folded edge is connected to the first folded edge, and the other end of the second folded edge is connected to the third side of the liquid crystal display module. The first side and the third side of the liquid crystal display module are two opposite sides of the liquid crystal display module. The second side of the liquid crystal display module is located between the first side and the third side of the liquid crystal display module.

2. The display device according to claim 1, characterized in that, The display module also includes a touch screen, and the second side of the shielding film is connected to the touch screen. The first side and the second side of the shielding film are two opposite sides of the shielding film.

3. The display device according to claim 2, characterized in that, The display device further includes a first adhesive component, through which the shielding film is connected to the liquid crystal display module and the touch screen.

4. The display device according to claim 3, characterized in that, The display device further includes a second adhesive member for connecting the second folded edge to the third side of the liquid crystal display module.

5. The display device according to claim 1, characterized in that, The second folded edge is located within the area of ​​the liquid crystal display module in the vertical projection of the liquid crystal display module.

6. The display device according to claim 1, characterized in that, The thickness of the second folded edge is greater than or equal to 4 mm and less than or equal to 6 mm.

7. The display device according to claim 4, characterized in that, The first adhesive is an optical adhesive, and the second adhesive is at least one of conductive foam, conductive adhesive, copper foil, and aluminum foil.

8. The display device according to claim 1, characterized in that, The area of ​​the lug near the liquid crystal display module has a grid pattern of continuous sinusoidal wave-shaped metal bridge structure.

9. The display device according to claim 1, characterized in that, The number of lugs is two, and the two lugs are located on the same side of the shielding film, or the two lugs are located on different sides of the shielding film.

10. The display device according to claim 1, characterized in that, The lug has a square structure.

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