Liquid crystal module with detachable back plate

Abstract

The utility model discloses a liquid crystal module convenient to dismantle backboard, including the heaven side end and the ground side end, from the front to the back includes liquid crystal glass, first optical film piece, light guide plate, second optical film piece in proper order, still include backboard and rear shell, the upper end of rear shell is closed the heaven side end, and the bottom is closed the ground side end, the upper portion of rear shell is equipped with the window, the top of window is equipped with first clamping groove, and the below of window is equipped with second clamping groove, backboard detachable embedding in first clamping groove and second clamping groove, the utility model discloses a clamping groove structure realizes backboard detachable, and cooperation pattern layer design, and user can replace back pattern fast, satisfies the individualized demand, has solved the traditional module appearance fixed, the difficult problem of replacement, adopts the structure of clamping to replace the screw fixed, reduces the accessory and assembly procedure, and pattern layer makes without mould, reduces the custom cost, and material selection flexible PET, PC etc. Low -cost material, further control comprehensive cost.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal module technology, and specifically to a liquid crystal module with an easy-to-remove back panel. Background Technology

[0002] With the rapid development of display technology, monitors, televisions, and other display products have become indispensable devices in people's daily lives and work. As consumer demands diversify, these products not only need excellent display effects (such as high resolution, high contrast, and wide color gamut) and stable performance (such as long lifespan and low power consumption), but also require increasingly higher standards in terms of appearance and design. Aesthetically pleasing appearance, low cost, and ease of maintenance have become core topics of continuous exploration and research within the industry.

[0003] Traditional edge-lit backlight modules, as core components of display products, typically consist of multiple layers of stacked parts, resulting in cumbersome assembly processes and high costs. The need for screws and clips to connect and secure these components increases material costs and extends production cycles, leading to higher overall manufacturing costs and reduced production efficiency. Secondly, the fixed back cover design fails to meet personalized needs. Traditional backlight modules usually have a unibody back cover, with its pattern or color fixed after production. Consumers cannot change the back cover design according to their preferences or usage scenarios, limiting product personalization and failing to meet market demands for diverse appearances. Thirdly, they suffer from insufficient structural strength and poor versatility. Existing backlight modules often use plastic as the main back panel, resulting in weak overall structural strength. They are easily deformed by external impacts during transportation or use, affecting product lifespan. Furthermore, different display models often require dedicated backlight module structures, leading to low standardization and modularity, poor versatility, and increased R&D costs and inventory pressure. Finally, the limited backlighting method results in low light energy utilization. Traditional side-lit backlight modules often use plastic materials for their light guide plates and can only emit light from one side. This results in some light being absorbed or wasted by the back plate, leading to low light energy utilization and indirectly affecting the brightness and energy-saving performance of display products.

[0004] To address the aforementioned issues, the industry urgently needs a backlight module structure that is simplified, low-cost, customizable in appearance, and highly versatile. Utility Model Content

[0005] The present invention aims to overcome at least one of the defects of the prior art and provide a liquid crystal module with an easy-to-disassemble back panel, so as to achieve the purpose of easy disassembly of the back panel and easy assembly.

[0006] This utility model provides a liquid crystal module with an easily detachable back panel, including a top side and a bottom side; from the front to the back, it includes liquid crystal glass, a first optical film, a light guide plate, and a second optical film; it also includes a back panel and a rear shell, the upper end of which covers the top side and the bottom end of which covers the bottom side; the upper part of the rear shell is provided with a window; a first slot is provided above the window and a second slot is provided below the window; the back panel is detachably embedded in the first slot and the second slot.

[0007] This invention breaks away from the traditional design where the module backplate and rear shell are fixedly connected. By using a slot, the backplate can be detached, solving the problem that the pattern on the back of traditional modules cannot be changed or requires disassembly of the entire structure. This simplifies the replacement process and improves user convenience. Furthermore, this invention features a clearly defined structural hierarchy: liquid crystal glass, optical film, light guide plate, and backplate. This reduces redundant components and assembly complexity. Simultaneously, the rear shell covers the top and bottom sides, enhancing the overall structural stability of the module.

[0008] Furthermore, the back plate is provided with a patterned layer.

[0009] This invention provides a back panel display function, enabling personalized patterns to be displayed on the back of the LCD module. This satisfies users' diverse needs for product appearance and breaks through the limitations of traditional modules where the back panel only serves as a structural component without decorative function. Furthermore, the pattern layer is directly set on the detachable back panel, allowing for back panel pattern updates without modifying other module structures, thus lowering the threshold and cost of appearance customization.

[0010] Preferably, the back sheet is transparent glass, transparent PET sheet, or transparent PC sheet.

[0011] All three materials possess high light transmittance, ensuring that light from the light guide plate can penetrate the back panel, allowing the pattern layer to be clearly displayed and solving the problem of blurred patterns or inability to emit light caused by non-transparent materials. The materials have complementary properties: transparent glass is wear-resistant and heat-resistant, suitable for long-term use; transparent PET sheets are lightweight and low-cost, suitable for mass production; and transparent PC sheets are highly impact-resistant, suitable for environments prone to collisions. Users can choose according to their needs, expanding the product's applicability.

[0012] More preferably, the pattern layer is a printed pattern or a thin film with a pattern applied to its surface.

[0013] Both of the above-mentioned methods of this utility model are low-cost and high-efficiency pattern production processes: printing patterns can achieve high-precision and complex patterns, such as high-definition images and gradient colors, suitable for personalized customization; the film with the pattern is easy to replace in batches, that is, only the film needs to be replaced, and the film can be processed with special processes, such as frosting and laser engraving, to enhance the texture. Compared with the traditional one-piece molded pattern on the back cover, such as injection molded patterns, the pattern layer production and replacement do not require molds, reducing the cost of design iteration and enabling rapid response to market trends, such as holiday themes and brand activities.

[0014] Furthermore, one end of the window is provided with a limiting slot; the limiting slot is perpendicular to the first slot and the second slot.

[0015] The limiting slot, together with the first and second slots, forms a three-dimensional fixing structure, constraining the backplate from both vertical and end directions. This prevents the backplate from shaking, shifting, or falling off due to vibration during use or transportation, thus improving the stability of the backplate installation. Furthermore, the vertical design does not affect the insertion and removal of the backplate, ensuring a secure fit while retaining the core advantage of easy disassembly, and resolving the end loosening problem that might occur with only the first and second slots.

[0016] Furthermore, the top end is also provided with a frame; the top ends of the first optical film, the light guide plate, and the second optical film are embedded inside the frame; the outer side of the frame is fixed to the rear shell.

[0017] The frame, acting as a central connector, integrates and secures the top end of the optical film and light guide plate, preventing positional misalignment caused by independent installation of individual components. This ensures precise alignment of the optical components, improves light transmission efficiency, and reduces light leakage or uneven brightness due to component misalignment. The frame's fixation to the back cover further strengthens the structural integrity of the top end, preventing deformation of the module due to external forces such as handling or collisions, and extending product lifespan.

[0018] Furthermore, the outer side of the frame is provided with a groove; the rear shell is provided with a locking post that engages with the groove.

[0019] The "groove-clamp" interlocking structure replaces traditional screw fastening, reducing the use of screws and other metal parts, thus lowering material costs. It also eliminates the need for screwing, improving assembly efficiency. The interlocking structure is easy to disassemble; subsequent maintenance requires no special tools to separate the frame from the back cover, reducing maintenance difficulty.

[0020] Furthermore, the liquid crystal module of this utility model also includes an edge-sealing adhesive, which wraps around the top edge of the light guide plate. The edge-sealing adhesive seals the edge of the top edge of the light guide plate, preventing light leakage from the end of the light guide plate and improving light utilization. The edge-sealing adhesive protects the light guide plate, preventing direct contact with the frame and thus avoiding friction or collision, reducing wear on the light guide plate. It is especially suitable for brittle materials such as glass light guide plates, extending the service life of the light guide plate.

[0021] Furthermore, the top end of the liquid crystal glass is fixed to the frame using a first double-sided foam adhesive. The double-sided foam adhesive is elastic, which can absorb vibrations between the liquid crystal glass and the frame, such as during transportation bumps or minor impacts during use, preventing the liquid crystal glass from breaking due to a rigid connection. The foam adhesive also has stable adhesion and leaves no residue upon disassembly, facilitating subsequent replacement or repair of the liquid crystal glass and reducing maintenance costs. Simultaneously, its thickness can fill tiny gaps, ensuring a tight fit between the liquid crystal glass and the frame, and improving structural stability.

[0022] Furthermore, the LCD module also includes a light strip, a heat sink, a second double-sided foam adhesive, and a front frame located on the ground side. The light strip abuts against the light guide plate. The heat sink is a metal heat sink used for heat dissipation of the light strip. The ground side of the heat sink has a threaded hole and is fixed to the front frame with screws. One end of the heat sink is fixed to the LCD panel with the second double-sided foam adhesive. The outer side of the front frame is attached to the rear shell. The light strip directly abuts against the light guide plate, ensuring efficient light introduction and reducing light loss. The metal heat sink has high thermal conductivity, which can quickly dissipate the heat generated by the light strip during operation, preventing the light strip from aging due to high temperature and ensuring long-term stable light emission of the module. The heat sink is fixed to the front frame with screws to ensure structural sturdiness. It is fixed to the LCD panel with the second double-sided foam adhesive, which provides both cushioning and adhesion, preventing panel vibration. The attachment of the front frame to the rear shell further strengthens the ground side structure and improves the overall rigidity of the module.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This invention achieves a detachable back panel through a slot structure. Combined with the pattern layer design, users can quickly change the back pattern to meet personalized needs, solving the problems of fixed appearance and difficult replacement of traditional modules. The snap-fit ​​structure replaces screw fixation, reducing accessories and assembly processes; pattern layer production eliminates the need for molds, reducing customization costs; and flexible material selection, using low-cost materials such as PET and PC, further controls overall costs.

[0025] Furthermore, this utility model employs a frame, edge-sealing adhesive, and limiting slots to strengthen the fixation of each component, reducing loosening and misalignment; the cushioning effect of double-sided foam adhesive reduces the risk of component damage and improves product durability. Additionally, the transparent back panel material, edge-sealing adhesive to prevent light leakage, and precise alignment of the optical film and light guide plate enhance light utilization and display uniformity, ensuring clear and bright front and back displays.

[0026] This utility model adopts a modular design, such as a replaceable back panel and standardized card slots, making it suitable for a variety of display products, such as monitors and televisions, and facilitating subsequent functional upgrades, such as replacing the back panel with different materials or patterns. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the liquid crystal module of this utility model.

[0028] Figure 2 This is a schematic cross-sectional view of the top side of the liquid crystal module of this utility model.

[0029] Figure 3 This is a schematic cross-sectional view of the ground side of the liquid crystal module of this utility model.

[0030] Figure 4 This is a schematic diagram of the installation of the LCD module frame and back cover of this utility model.

[0031] Figure 5 This is a partial exploded view of the liquid crystal module of this utility model. Detailed Implementation

[0032] The accompanying drawings illustrate the technical solutions of this utility model in more detail. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are only some, not all, of the embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are 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, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application. Example

[0035] The liquid crystal module with an easily detachable backplate disclosed in this embodiment is suitable for display products such as side-lit backlight monitors and televisions. Its core design is to achieve quick disassembly and replacement of the backplate 5 through a slot structure, while optimizing the cooperation between optical components and support structure, taking into account display effect, structural stability and personalized needs.

[0036] like Figure 1 As shown, the module is divided vertically into the top end 100 (upper end) and the bottom end 200 (lower end). Figures 2-3 As shown, from front to back, the liquid crystal glass 1, the first optical film 2, the light guide plate 3, and the second optical film 4 are stacked in sequence; the peripheral structure includes structural components such as the back plate 5, the back shell 6, the frame 7, and the front frame 8. The back shell 6 wraps around the top end 100 and the bottom end 200 to form the outer layer protection of the liquid crystal module. The back plate 5 can be detachably installed through the slot on the back shell 6. The bottom end 200 integrates the light strip 9 and the heat sink 10 to ensure stable light source output.

[0037] The liquid crystal glass 1 serves as the core carrier for image display. Its top end 100 is fixed to the frame 7 via a first double-sided foam adhesive 11, and its ground end 200 is attached to the heat sink 10 via a second double-sided foam adhesive 12, ensuring no loosening within the module. The first optical film 2 is close to the liquid crystal glass 1, and the second optical film 4 is close to the back of the light guide plate 3. The top ends 100 of both are embedded inside the frame 7, and the frame 7 limits their movement to prevent displacement.

[0038] The light guide plate 3, made of glass, serves as the core component for light transmission. Its ground end 200 abuts against the light strip 9, receiving the light emitted by the light strip 9 and transmitting it to both the front and back sides; combined with Figure 4 As shown, the top end 100 is wrapped with edge-sealing adhesive 13, which is optical grade silicone, to both fix the edge of the light guide plate 3 and prevent light from leaking from the end.

[0039] Combination Figure 5As shown, the back cover 6 is injection molded from ABS plastic material and is in the shape of a "U" that wraps around the top end 100 and the bottom end 200 of the module. A rectangular window 14 is opened on the upper part corresponding to the position of the second optical film 4. The size of the window 14 matches the back plate 5. The upper inner wall of the window 14 is provided with a first slot 15 extending in the horizontal direction, and the lower inner wall is provided with a symmetrical second slot 16. The left or right side of the window 14 is provided with a limiting slot 17 that is perpendicular to the first slot 15 and the second slot 16. The length is the same as the width of the window 14. The three together form a slot structure of "three-sided constraint".

[0040] The back panel 5 is made of transparent PET sheet, and a pattern layer, such as landscape pattern or brand logo, is formed on the surface by UV printing. Its size matches the window 14. It can be inserted into the slot formed by the first slot 15, the second slot 16 and the limiting slot 17 from the non-limiting slot 17 side of the window 14 to achieve detachable fixation. If the pattern needs to be changed, simply pull out the old back panel 5 along the insertion direction and insert the back panel 5 with the new pattern, without the need for tools.

[0041] The frame 7 is made of PC plastic material and has an inner mounting groove. The top edges 100 of the first optical film 2, the light guide plate 3, and the second optical film 4 are embedded in the mounting groove to achieve alignment and fixation of the optical components; Figure 4 As shown, the outer side of the frame 7 is provided with a groove 18, and the corresponding position of the back shell 6 is provided with a matching locking post 19. The frame 7 and the back shell 6 are fixed by the engagement of the groove 18 and the locking post 19, which replaces the traditional screw connection and simplifies the assembly process.

[0042] The light strip 9 uses an LED bead array, which is pasted on the side of the light guide plate 3 at the ground end 200. It is connected to an external power supply through wires to provide a light source for the module. The bonding gap between the light strip 9 and the light guide plate 3 is ≤0.1mm to ensure efficient light introduction.

[0043] The heat sink 10 is made of aluminum alloy. One side is tightly attached to the light strip 9, and the other side is connected to the ground end 200 of the LCD glass 1 through the second double-sided foam adhesive 12. The ground end 200 of the heat sink 10 is provided with threaded holes and is fixed to the front frame 8 by screws. The front frame 8 is made of metal and its outer side is attached to the inner wall of the ground end 200 of the rear shell 6 to form a rigid support for the ground end 200.

[0044] The assembly process is as follows:

[0045] The first optical film 2 is attached to the front of the light guide plate 3, and the second optical film 4 is attached to the back of the light guide plate 3. The top ends 100 of the two are wrapped with edge-sealing adhesive 13 to form the light guide plate 3 assembly. The whole assembly is embedded into the groove 18 inside the frame 7 to complete the pre-assembly of the optical assembly. The liquid crystal glass 1 is fixed to the front of the frame 7 with the first double-sided foam adhesive 11 to form the display core. The back cover 6 is engaged with the groove 18 outside the frame 7 by the locking post 19 to wrap the top end 100. At the same time, the lamp strip 9 and the heat sink 10 are installed in sequence on the ground end 200. The front frame 8 is fixed with the heat sink 10 by screws and attached to the back cover 6. Finally, the patterned back plate 5 is inserted into the slot of the window 14 of the back cover 6 to complete the overall assembly.

[0046] This embodiment combines modular design with a card slot structure, which not only ensures the display effect and structural stability of the LCD module, but also enables convenient replacement of the back panel 5, meeting users' needs for personalized product appearance, while simplifying production and maintenance processes and reducing overall costs.

[0047] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of this utility model. Those skilled in the art can also make other changes within the spirit of this utility model for its design, as long as they do not deviate from the technical effect of this utility model. These changes made according to the spirit of this utility model should all be included within the scope of protection claimed by this utility model.

Claims

1. A liquid crystal module with an easily removable back panel, comprising a top-side end (100) and a ground-side end (200); characterized in that, The back cover consists of a liquid crystal glass (1), a first optical film (2), a light guide plate (3), and a second optical film (4) arranged sequentially from front to back. It also includes a back plate (5) and a rear shell (6). The upper end of the rear shell (6) covers the top side (100), and the bottom end covers the bottom side (200). The upper part of the rear shell (6) is provided with a window (14). A first slot (15) is provided above the window (14), and a second slot (16) is provided below the window (14). The back plate (5) is detachably embedded in the first slot (15) and the second slot (16).

2. The liquid crystal module according to claim 1, characterized in that, The back panel (5) has a patterned layer.

3. The liquid crystal module according to claim 2, characterized in that, The back panel (5) is made of transparent glass, transparent PET sheet, or transparent PC sheet.

4. The liquid crystal module according to claim 2, characterized in that, The pattern layer is a printed pattern or a thin film with a pattern applied to its surface.

5. The liquid crystal module according to claim 1, characterized in that, One end of the window (14) is also provided with a limiting slot (17); the limiting slot (17) is perpendicular to the first slot (15) and the second slot (16).

6. The liquid crystal module according to claim 1, characterized in that, The top end (100) is also provided with a frame (7); the top end (100) of the first optical film (2), the light guide plate (3), and the second optical film (4) are embedded in the inner side of the frame (7); the outer side of the frame (7) is fixed to the rear shell (6).

7. The liquid crystal module according to claim 6, characterized in that, The outer side of the frame (7) is provided with a groove (18); the rear shell (6) is provided with a locking post (19) that engages with the groove (18).

8. The liquid crystal module according to claim 6, characterized in that, It also includes edge-sealing adhesive (13), which wraps around the top end (100) of the light guide plate (3).

9. The liquid crystal module according to claim 6, characterized in that, The top end (100) of the liquid crystal glass (1) is fixed to the frame (7) by the first double-sided foam adhesive (11).

10. The liquid crystal module according to claim 1, characterized in that, It also includes a light strip (9) located on the ground side (200), a heat sink (10), a second double-sided foam adhesive (12), and a front frame (8); The light strip (9) abuts against the light guide plate (3); the heat sink (10) is a metal heat sink (10) used for heat dissipation of the light strip (9); the ground end (200) of the heat sink (10) is provided with a threaded hole and is fixed to the front frame (8) by screws; one end of the heat sink (10) is fixed to the liquid crystal panel by a second double-sided foam adhesive (12); the outer side of the front frame (8) is attached to the rear shell (6).

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