Ultra-narrow black border liquid crystal television module structure

Abstract

The utility model relates to television structure technical field discloses super narrow black edge liquid crystal television module structure, including backplate, connecting piece, display screen, optical film piece subassembly and the rectangular frame that four border encloses, the inside surface of border all is perpendicularly equipped with front side border and rear side border, and there is gap between front side border and rear side border and forms U -shaped slot, the edge of backplate all is bent to the front side and forms the U -shaped bending part containing U -shaped slot in the backplate all around, U -shaped bending part all can be inserted into U -shaped slot and the rear side of U -shaped bending part is fixedly connected with rear side border through connecting piece, and there is the gap for installing display screen between the front side of U -shaped bending part and front side border, and the edge of optical film piece subassembly all inserts into U -shaped slot to propose a kind of structure capable of firmly fixed super narrow black edge liquid crystal television set component.

Description

Technical Field

[0001] This utility model relates to the field of television structure technology, specifically to the structure of an ultra-narrow black bezel LCD television module. Background Technology

[0002] With the rapid development of consumer electronics technology, LCD TVs are constantly evolving towards ultra-high screen-to-body ratios and extremely narrow bezels, resulting in a significant reduction in the width of the black border (BM area) of the LCD screen itself. Currently, the black border width of traditional LCD screens is approximately 6mm, while that of ultra-narrow LCD screens is approximately 2.6mm. In traditional LCD TV module structures, the LCD screen is typically fixed to the module back panel using sufficiently wide double-sided tape. However, when applied to ultra-narrow bezel displays, the available tape width decreases drastically due to the drastic reduction in the black border size. This directly leads to a significant decrease in the total adhesive area and bonding strength, failing to meet the reliability requirements of the entire unit during transportation and use against vibration and impact, posing a risk of screen detachment. The reduction in the black border size also reduces the size of the optical film assembly mounting structure, resulting in subjective defects such as bright edges in the displayed image and the risk of the optical film assembly detaching from the module. For example, Chinese patent document CN202364303U discloses an assembly structure for an ultra-narrow bezel of a flat panel TV. The structure has a connecting seat (12) on the front shell (1), and a connecting plate (4) that can press down the screen (2) is connected and fixed on the connecting seat (12). The connecting plate (4) is connected and fixed to the rear shell (3). However, the connecting seat is used to fix the four corners of the TV screen, and its fixing effect on the entire front shell is relatively unstable. At the same time, the installation of the connecting seat is also relatively complicated. Utility Model Content

[0003] The present invention aims to provide an ultra-narrow bezel LCD TV module structure, thereby proposing a structure that can stably fix the ultra-narrow bezel LCD TV assembly.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an ultra-narrow bezel LCD TV module structure, including a back panel, connectors, a display screen, an optical film assembly, and a rectangular frame formed by four bezels. The inner sides of each bezel are vertically provided with a front bezel and a rear bezel, with a gap between the front and rear bezels forming a U-shaped slot. The edges of the back panel are all bent forward and form U-shaped bends with U-shaped grooves around the back panel. The U-shaped bends can be inserted into the U-shaped slots, and the rear side of the U-shaped bends is fixedly connected to the rear frame by connectors. There is a gap between the front side of the U-shaped bends and the front frame for mounting the display screen. The edges of the optical film assembly are all inserted into the U-shaped grooves.

[0005] The beneficial effects of this solution are as follows: This utility model sets U-shaped bends around the back panel to form a forward bend, and inserts these bends into U-shaped slots on the inner side of the frame to achieve assembly and fixation. The U-shaped bends of the back panel are continuously arranged around the display screen and fixedly connected to the rear frame through connectors. This changes the fixing method of the display screen from the traditional point connection to circumferential surface contact fixing, which can significantly improve the overall mechanical stability of the module and make the display screen more resistant to vibration and impact during transportation, drops or use, thus preventing the display screen from loosening or falling off.

[0006] Meanwhile, inserting the four edges of the optical film assembly into the U-shaped groove enables precise positioning and stable fixation of the optical film, preventing it from shifting or falling off inside the module. This groove-type limiting structure effectively ensures the uniformity of the gap between the optical film, such as the diffuser plate and the brightness enhancement film, and the display screen, avoiding problems such as bright edges, dark corners, or uneven brightness caused by film offset, thereby improving the overall optical quality of the display screen.

[0007] During assembly, the U-shaped bend of the back panel is directly inserted into the U-shaped slot of the frame for positioning. After being fixed by connectors, it forms a stable whole, resulting in high assembly accuracy and improved efficiency. Compared with the traditional method of fixing by connectors or pressure plates, this structure has fewer assembly steps, fewer parts, and higher production consistency and assembly yield.

[0008] Preferably, as an improvement, the surface of the U-shaped groove opposite to the optical film assembly is provided with a pressure strip for pressing the optical film assembly.

[0009] The beneficial effect is that by adding a pressure strip structure inside the U-shaped groove, a continuous pressing force can be generated on the edge of the optical film assembly after assembly, so that the optical film assembly can maintain a stable position within the module.

[0010] Preferably, as an improvement, the connector is a bolt, and the U-shaped groove has a recessed connecting groove on the surface near the rear side frame. The connecting groove has a threaded hole, and the rear side frame also has a threaded connecting hole for bolt connection at the position opposite to the threaded hole.

[0011] The beneficial effects are as follows: the connecting groove formed by the sinking of the U-shaped groove can effectively embed the bolt head or threaded section, so that the bolt does not occupy extra space after installation, ensuring the integrity of the module's appearance and the visual effect of the ultra-narrow bezel. Compared with riveting or bonding methods, this structure can not only provide higher axial locking force and shear strength, but also facilitate assembly, maintenance and later replacement.

[0012] Preferably, as an improvement, double-sided tape is adhered to the surface of the U-shaped bend near the display screen.

[0013] The beneficial effects are as follows: Double-sided tape can fix the display screen during the assembly process, making it easier to accurately fix and attach the display screen to the correct position, improving assembly accuracy and efficiency. At the same time, double-sided tape can absorb some of the impact energy when the module is vibrated or dropped, reducing stress concentration at the edge of the display screen. In addition, double-sided tape can also play a role in dust prevention and sealing, effectively preventing some air moisture from entering the module, thus improving the overall environmental adaptability and long-term reliability.

[0014] Preferably, as an improvement, a flexible buffer strip is attached and fixed to the surface of the front bezel near the display screen.

[0015] The beneficial effects are: the flexible buffer strip has excellent elasticity and resilience, which can provide flexible support, shock absorption and edge protection for the display screen.

[0016] Preferably, as an improvement, it also includes a backlight assembly, which is fixed to the surface of the backplate opposite the optical film by tape or screws.

[0017] The beneficial effects are as follows: the backlight assembly is located below the optical film assembly and works in conjunction with the optical film assembly to form a highly uniform surface light source, ensuring the brightness uniformity and color consistency of the displayed image.

[0018] Preferably, as an improvement, a light-shielding sheet is attached to the edge of the optical component.

[0019] The beneficial effect is that when the black border width of an LCD screen is reduced to 2-3mm, the edge area of ​​the optical film in the traditional structure is easily exposed to direct backlighting, resulting in a bright edge around the display screen. By attaching a light-shielding film to the edge of the optical film assembly, edge light leakage can be effectively absorbed or blocked, making the transition between the display boundary and the screen image natural and eliminating the visual bright edge defect.

[0020] Preferably, as an improvement, the bottom of the U-shaped groove has a lug notch for mounting an optical film.

[0021] The beneficial effects are as follows: by setting a lug notch at the bottom of the U-shaped groove, the edge lug of the optical film assembly can mechanically engage with the notch, forming a dual constraint in both vertical and horizontal directions, thus reducing the risk of the optical film assembly falling off. Preferably, as an improvement, the height of the front bezel is in the range of 5-2mm.

[0022] The benefits are: by controlling the height of the front bezel within the range of 5–2mm, the boundary of the display area can be closer to the outer edge of the whole machine, achieving an almost "borderless" immersive visual experience, significantly improving the screen ratio and display effect. Attached Figure Description

[0023] Figure 1This is a cross-sectional view of a specific structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the back plate edge structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of a partial frame structure in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the optical film assembly structure according to an embodiment of the present invention.

[0024] The reference numerals in the accompanying drawings include: back plate 1, display screen 2, optical film assembly 3, frame 4, front frame 5, rear frame 6, U-shaped slot 7, U-shaped groove 8, bolt 9, threaded hole 10, threaded connection hole 11, pressure strip 12, double-sided tape 13, flexible buffer strip 14, backlight assembly 15, lug notch 16, light shield 17, lug 18. Detailed Implementation

[0025] The following detailed description is provided through specific implementation methods and examples: The preferred embodiments of this utility model are basically as shown in the appendix. Figure 1-4 As shown, Figure 1 and Figure 2 The ultra-narrow bezel LCD TV module structure shown includes a back panel 1, connectors, a display screen 2, an optical film assembly 3, and a rectangular frame formed by four bezels 4. Figure 3 As shown, the inner sides of the frame 4 are vertically provided with a front frame 5 and a rear frame 6. There is a gap between the front frame 5 and the rear frame 6, forming a U-shaped slot 7. The edges of the back plate 1 are all bent forward, forming U-shaped bends with U-shaped grooves 8 around the back plate 1. The U-shaped bends can all be inserted into the U-shaped slots 7, and the rear side of the U-shaped bend is fixedly connected to the rear frame 6 by a connector. There is a gap between the front side of the U-shaped bend and the front frame 5 for mounting the display screen 2. The edges of the optical film assembly 3 are all inserted into the U-shaped grooves 8. To improve the display effect, the preferred embodiment of this utility model is that the height of the front frame 5 is in the range of 5-2mm.

[0026] This utility model achieves assembly and fixation by setting U-shaped bends around the back plate 1, which are bent forward, and inserting these bends into U-shaped slots 7 inside the frame 4. The U-shaped bends of the back plate 1 are continuously arranged around the display screen 2 and fixedly connected to the rear frame 6 through connectors. This changes the fixing method of the display screen 2 from the traditional point connection to circumferential surface contact fixing, which can significantly improve the overall mechanical stability of the module and make the display screen 2 more resistant to vibration and impact during transportation, drops, or use, thus preventing the display screen 2 from loosening or falling off.

[0027] Meanwhile, the four edges of the optical film assembly 3 are inserted into the U-shaped groove 8, which can achieve precise positioning and stable fixation of the optical film, preventing it from shifting or falling off inside the module. Through this groove-type limiting structure, the uniformity of the gap between the optical film such as the diffuser plate and the brightness enhancement film and the display screen 2 can be effectively guaranteed, avoiding problems such as bright edges, dark corners or uneven brightness caused by film offset, thereby improving the overall optical quality of the display screen.

[0028] During assembly, the U-shaped bend of the back plate 1 is directly inserted into the U-shaped slot 7 of the frame 4 for positioning. After being fixed by the connectors, a stable whole is formed, resulting in high assembly accuracy and improved efficiency. Compared with the traditional method of fixing by connecting seats or pressure plates, this structure has fewer assembly steps, fewer parts, and higher production consistency and assembly yield.

[0029] To ensure a simple, reliable, and easy-to-assemble structure, the preferred embodiment of this invention uses a bolt 9 as the connector. A connecting groove is recessed on the surface of the U-shaped groove 8 near the rear side frame 6, and a threaded hole 10 is provided in the connecting groove. A threaded connecting hole 11 for connecting the bolt 9 is also provided on the rear side frame 6 opposite to the threaded hole 10. The connecting groove formed by the recessed U-shaped groove 8 can effectively embed the head or threaded section of the bolt 9, so that the bolt 9 does not occupy extra space after installation, ensuring the integrity of the module's appearance and the visual effect of the ultra-narrow bezel 4. Compared with riveting or bonding, this structure can not only provide higher axial locking force and shear strength, but also facilitate assembly, maintenance, and later replacement.

[0030] To enhance structural stability, the preferred embodiment of this invention features a pressure strip 12 on the surface of the U-shaped groove 8 opposite to the optical film assembly 3. This strip provides continuous pressure on the edges of the optical film assembly 3 after assembly, ensuring stable positioning within the module. To further enhance structural stability, the preferred embodiment also includes double-sided tape 13 adhered to the surface of the U-shaped bend near the display screen 2. This tape secures the display screen 2 during assembly, facilitating precise fixation and improving assembly accuracy and efficiency. Additionally, the tape absorbs some impact energy when the module is subjected to vibration or drop, reducing stress concentration at the edges of the display screen 2. Furthermore, the tape provides dustproofing and sealing, effectively preventing moisture from entering the module and enhancing overall environmental adaptability and long-term reliability. To improve structural stability, the preferred embodiment of this utility model is that a flexible buffer strip 14 is attached and fixed to the surface of the front frame 5 near the display screen 2. The flexible buffer strip 14 has excellent elasticity and resilience, and can provide flexible support, shock absorption and edge protection for the display screen 2.

[0031] To improve structural stability, the preferred embodiment of this invention further includes a backlight assembly 15. The backlight assembly 15 is fixed to the surface of the back plate 1 opposite to the optical film using tape or screws. The backlight assembly 15 is located below the optical film assembly 3 and works in conjunction with it to form a highly uniform surface light source, ensuring uniform brightness and color consistency of the displayed image. The bottom of the U-shaped groove 8 has a lug notch 16 for mounting the optical film.

[0032] like Figure 4 As shown, to improve the display effect, the preferred embodiment of this invention uses a light-shielding sheet 17 attached to the edge of the optical component. When the black border width of the liquid crystal display screen 2 is reduced to 2-3mm, the edge area of ​​the optical film in the traditional structure is easily directly illuminated by the backlight, thus forming a bright edge around the display screen. By attaching the light-shielding sheet 17 to the edge of the optical film component 3, edge light leakage can be effectively absorbed or blocked, making the transition between the display boundary and the screen image natural and eliminating the visual bright edge defect.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An ultra-narrow bezel LCD TV module structure, comprising a back panel (1), connectors, a display screen (2), an optical film assembly (3), and a rectangular frame formed by four bezels (4), wherein the inner sides of the bezels (4) are vertically provided with a front bezel (5) and a rear bezel (6), and there is a gap between the front bezel (5) and the rear bezel (6) forming a U-shaped slot (7), characterized in that: The edges of the back panel (1) are all bent forward and form a U-shaped bend with a U-shaped groove (8) around the back panel (1). The U-shaped bend can be inserted into the U-shaped slot (7) and the back side of the U-shaped bend is fixedly connected to the back side frame (6) by a connector. There is a gap between the front side of the U-shaped bend and the front side frame (5) for installing the display screen (2). The edges of the optical film assembly (3) are all inserted into the U-shaped groove (8).

2. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: The surface of the U-shaped groove (8) opposite to the optical diaphragm assembly (3) is provided with a pressure strip (12) for pressing down the optical diaphragm assembly (3).

3. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: The connector is a bolt (9). The U-shaped groove (8) is recessed on the surface near the rear side frame (6) and has a connecting groove. The connecting groove has a threaded hole (10). The rear side frame (6) also has a threaded connecting hole (11) for connecting the bolt (9) at the position opposite to the threaded hole (10).

4. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: Double-sided tape (13) is pasted on the surface of the U-shaped bend near the display screen (2).

5. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: A flexible buffer strip (14) is attached to the surface of the front bezel (5) near the display screen (2).

6. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: It also includes a backlight assembly (15), which is fixed to the surface of the backplate (1) opposite to the optical film by tape or screws.

7. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: The optical components are fitted with light-shielding sheets (17) along their edges.

8. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: The bottom of the U-shaped groove (8) has a lug notch (16) for mounting optical films.

9. The ultra-narrow bezel LCD TV module structure according to claim 1, characterized in that: The height of the front side frame (5) ranges from 5 to 2 mm.

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