LCD display structure

Abstract

The utility model discloses a liquid crystal display (LCD) structure which comprises a backlight source and a panel, the backlight source is located below the panel, and a positioning frame is arranged on the outer side of the backlight source and the outer side of the panel. The positioning frame comprises a frame-shaped body, the upper end of the frame-shaped body extends inwards to form a lap joint platform for placing a panel, and an inner cavity for inserting and placing a stamping back plate is formed in the frame-shaped body; the upper end of the frame-shaped body is provided with a crimping part extending towards the inner side, the crimping part is located above the lap joint platform, and when the panel is placed on the lap joint platform, the crimping part is pressed on the edge of the panel; a clamping groove is formed in the outer side of the frame-shaped body, the edge of the stamping back plate is bent upwards to form a bent part, a clamping block corresponding to the clamping groove is arranged on the bent part, and the backlight source and the positioning frame are connected in a buckled mode through the clamping block and the clamping groove. Compared with a traditional structure that a panel is fixed through a stamping frame, the limitation of the stamping process on the width of the bent edge is broken through, the displayer frame can be made to be narrower, and the stability and reliability of connection can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of LCD display screens and relates to an LCD display structure. Background Art

[0002] In today's display technology field, LCD displays occupy an important position. In the structure of LCD displays, the reasonable combination of backlight source and panel is the key link to ensure its normal display function.

[0003] At present, the existing technology for connecting the backlight source and the panel is mainly divided into two methods: weak connection and strong connection. The weak connection adopts an adhesive connection, which mainly relies on the light-shielding tape on the four sides of the backlight edge. This light-shielding tape is specially designed and made into a double-sided tape. One side is tightly attached to the frame of the backlight source, playing a vital light-shielding role, preventing disordered scattering and leakage of light, thereby ensuring the clarity and contrast of the display image. The other side is used to stick the panel, and the backlight source and the panel are connected together by this adhesive method. However, this weak connection method has certain limitations. Since it relies on the adhesive force of the double-sided tape, the firmness of the connection may be affected by environmental factors such as temperature, humidity, and external force impact. During long-term use, the panel and the backlight source may separate, affecting the normal use of the display.

[0004] In contrast, a strong connection method uses a stamped frame structure to secure the backlight and panel. Specifically, hooks are designed on the backlight's plastic frame, and corresponding holes are provided in the stamped frame. The panel and backlight are secured together through mechanical engagement. This strong connection method is relatively complex to design and manufacture, resulting in high production costs.

[0005] In summary, in the development of LCD displays, how to optimize the connection between the backlight source and the panel in a way that is both robust, reliable, and low-cost is a major challenge facing the current technology field. Utility Model Content

[0006] The purpose of the utility model is to provide an LCD display structure, improve the existing connection method between the backlight source and the panel, and solve the problems raised in the background technology.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] An LCD display structure includes a backlight source and a panel, wherein the backlight source is located below the panel, and a positioning frame is provided on the outside of the backlight source and the panel; the positioning frame includes a frame-shaped body, the upper end of the frame-shaped body extends inwardly to form a lap platform for placing the panel, and an inner cavity is formed on the frame-shaped body for inserting and placing a stamped back plate; the upper end of the frame-shaped body has a pressing portion extending inwardly, the pressing portion is located above the lap platform, and the pressing portion is pressed against the edge of the panel when the panel is placed on the lap platform; a card slot is provided on the outside of the frame-shaped body, the edge of the stamped back plate is bent upward to form a bending portion, and a card block corresponding to the card slot is provided on the bending portion, and a snap connection is formed between the backlight source and the positioning frame via the card block and the card slot.

[0009] As a further improvement of an embodiment of the present invention, an outer cover frame is provided on the positioning frame, the outer cover frame covers the positioning frame, and the outer cover frame has a window, the window is used to expose the display area of the panel.

[0010] As a further improvement of an embodiment of the present invention, the positioning frame is a plastic frame.

[0011] As a further improvement of an embodiment of the present invention, an inwardly protruding abutting portion is provided on the inner side of the frame-shaped body below the crimping portion.

[0012] As a further improvement of an embodiment of the present invention, a buffer pad is provided on the overlapping platform, and the panel is provided on the buffer pad.

[0013] As a further improvement of an embodiment of the present invention, a fixing glue is provided between the positioning frame and the stamping back plate to form a fixing glue layer.

[0014] As a further improvement of an embodiment of the present invention, the upper end surface of the crimping portion is a guide curved surface inclined downward toward the inside.

[0015] As a further improvement of one embodiment of the present invention, the panel includes a first glass and a second glass distributed up and down, the upper end surface of the first glass is provided with an upper polarizer, and the lower end surface of the second glass is provided with a lower polarizer; the first glass is a color filter glass, and the second glass is a thin film transistor glass.

[0016] As a further improvement of one embodiment of the present utility model, the backlight source includes a stamped backplate, a light source is provided at the bottom of the stamped backplate, a reflective sheet is provided on the light source, and the light source is located on one side of the reflective sheet; a light guide plate is provided on the reflective sheet and is opposite to the light source, and an optical film group is provided on the light guide plate.

[0017] As a further improvement of an embodiment of the present invention, the optical film group is provided with a lower diffuser, a lower brightness enhancement sheet, an upper brightness enhancement sheet and an upper diffuser in sequence from bottom to top.

[0018] As a further improvement of an embodiment of the present invention, structural grooves are provided on the frame-shaped body on both sides of the crimping portion.

[0019] The above technical solution offers the following advantages: The use of a positioning frame secures the backlight and panel securely, reliably, and cost-effectively. A snap-fit structure between the positioning frame and the stamped backplate secures the entire LCD display structure. The injection molding process provides greater freedom in product design. Compared to traditional panel mounting using a stamped frame, this solution overcomes the limitations of the stamping process in terms of bending width, enabling a narrower display frame while ensuring a secure and reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0022] Figure 1 This is a three-dimensional schematic diagram provided for Example 1 of the present utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram provided for Example 1 of the present utility model (with the outer cover frame hidden).

[0024] Figure 3 This is an exploded schematic diagram of the positioning frame and stamped backboard provided in Example 1 of the present utility model.

[0025] Figure 4 This is a schematic diagram of the combination of the positioning frame and the stamped backboard provided in Example 1 of the present utility model.

[0026] Figure 5 This is a structural diagram provided for Example 1 of the present utility model.

[0027] Figure 6 This is a structural diagram provided for Example 1 of the present utility model.

[0028] Figure 7 This is a three-dimensional schematic diagram provided for Example 2 of the present utility model.

[0029] In the picture:

[0030] 1-backlight source; 11-stamped back panel; 111-bend portion; 1111-convex ridge; 112-block; 12-light source; 13-reflector; 14-light guide plate; 15-buffer rubber pad; 16-optical film assembly; 161-lower diffuser; 162-lower brightness enhancement sheet; 163-upper brightness enhancement sheet; 164-upper diffuser;

[0031] 2-panel; 21-upper polarizer; 22-first glass; 23-second glass; 24-lower polarizer;

[0032] 3- positioning frame; 31- frame-shaped body; 32- overlapping platform; 33- crimping portion; 34- slot; 35- abutting portion; 36- structural slot;

[0033] 4-Fix the glue layer;

[0034] 5- cushion;

[0035] 6- Outer cover frame. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0039] Example 1

[0040] See also Figures 1 to 6As shown, an LCD display structure cleverly integrates a backlight source 1 and a panel 2. Through the unique design of a positioning frame 3, the product is lightweight and stable. This structure not only optimizes the overall weight of the display, but also reduces production costs while ensuring quality.

[0041] Specifically, the LCD display structure consists of a backlight 1, a panel 2, and a positioning frame 3. Backlight 1 is securely positioned beneath panel 2, providing uniform and sufficient light for the display. Panel 2 is responsible for converting the backlight's light into a clear image.

[0042] In this embodiment, the positioning frame 3 is a frame-shaped structure, comprising a frame body 31. The frame body 31 is shaped like a square. The upper end of the frame body 31 extends inward to form a landing platform 32 for placing the panel 2. The frame body 31 also defines an inner cavity for inserting and placing the stamped backplate 11. The landing platform 32 is annularly arranged along the inner wall of the frame body 31, ensuring greater stability for the panel 2 during placement and providing a reliable foundation for subsequent assembly and use.

[0043] The upper end of the frame-shaped body 31 has a press-fit portion 33 extending inward. Two press-fit portions 33 are provided on each of the three sides of the landing platform 32. These press-fit portions 33 primarily compress the panel 2 placed on the landing platform 32. By using multiple press-fit portions 33 to compress the panel 2 from different locations, displacement or loosening of the panel 2 during use can be effectively prevented. This not only ensures the stability of the display during operation but also improves the stability and reliability of the display.

[0044] A card slot 34 is provided on the outer side of the frame-shaped body 31 , and two of the above-mentioned card slots 34 are provided on each of the four outer side walls of the overlapping platform 32 . This symmetrical and multi-position design ensures the firmness and stability of subsequent assembly.

[0045] The edge of the stamped backplate 11 is bent upward to form a bent portion 111, on which a latch block 112 is provided that corresponds to the latch slot 34. The stamped backplate 11 can be installed from the bottom up onto the positioning frame 3. Once installed, the latch block 112 snaps into the corresponding latch slot 34, thereby securing the backlight source 1 to the positioning frame 3.

[0046] like Figure 1As shown, an outer cover frame 6 is provided over the positioning frame 3. This outer cover frame 6 cleverly covers the edge of the panel 2. The outer cover frame 6 has a window that exposes the panel's display area, while the edge of the panel 2 and the positioning frame 3 are cleverly concealed. This not only enhances the overall aesthetics and avoids visual impact caused by the clutter of various components, but also provides better protection for the device, preventing parts of the panel 2 and the positioning frame 3 from being affected by external factors such as collisions and dust.

[0047] Preferably, the bent portion 111 above each clamping block 112 on the long side of the stamped back plate 11 has a ridge 1111, and the upper end surface of the ridge 1111 is flat. When the stamped back plate 11 is installed from bottom to top into the positioning frame 3 and is installed in place, the clamping block 112 is clamped into the corresponding clamping groove 34, and the upper end surface of the ridge 1111 abuts against the top of the inner cavity of the positioning frame 3. Through this clamping method, the connection between the various components is tight and stable.

[0048] The bottom of the stamped back plate 11 in this embodiment is provided with support legs, which can stably place the LCD display structure on a desktop or other flat surface, ensuring that the LCD display structure will not easily shake or fall over during use.

[0049] This snap-in connection method greatly simplifies the assembly process for LCD display structures and improves production efficiency. Compared to the traditional use of a stamped frame to secure the panel structure, this overcomes the limitations of the stamping process on the width of the bending edge. Furthermore, considering structural stability, the tight fit between the snap block and the slot not only narrows the display bezel, but also ensures a secure and reliable connection.

[0050] Furthermore, the upper end surface of the crimping portion 33 is a curved guide surface that slopes downward inward. When the panel 2 is installed, the crimping portion 33 itself tilts downward due to the pressure. This design allows the panel 2 to be smoothly placed on the bonding platform 32.

[0051] The curved guide surface plays a crucial role. It effectively reduces friction between the panel 2 and the crimping portion 33 during the downward pressure. In conventional structures, without such a curved guide surface, the panel may generate significant friction with related components during installation, which not only increases installation difficulty but also easily causes wear on the panel 2. Our design with a curved guide surface effectively avoids this problem, ensuring the integrity of the panel 2.

[0052] An inwardly protruding abutment portion 35 is provided on the inner side of the frame-shaped body 31 below the crimping portion 33. When the panel 2 is placed on the overlapping platform 32, the edges of the panel 2 are in contact with the abutment portion 35, thereby ensuring that the panel 2 remains stable in the horizontal direction.

[0053] The positioning frame 3 in this embodiment is made of plastic. Not only does it possess sufficient strength and stability to support the display structure, but it is also lighter than metal frames, contributing to a lightweight product design. Furthermore, the plastic frame offers excellent processability, facilitating precise shape and structural design to accommodate a variety of complex application scenarios. Furthermore, the relatively low cost of plastic materials helps reduce overall production costs.

[0054] In order to improve the anti-seismic performance of the product, a buffer pad 5 is provided on the overlapping platform 32 , and the above-mentioned panel 2 is placed on the buffer pad 5 .

[0055] In this embodiment, the cushion pad 5 is made of cushioning foam. This material not only has excellent elasticity and cushioning properties, but is also lightweight and durable, making it ideal for protecting delicate electronic devices. The use of cushioning foam further enhances the LCD display's overall shock resistance, ensuring stable performance even in harsh environments, providing users with clear, stable images.

[0056] In this embodiment, a fixing adhesive layer 4 is formed between the positioning frame 3 and the stamped back plate 11. During actual use, the display may be subject to various external forces, causing the positioning frame 3 to deform outward. The fixing adhesive effectively and tightly connects the positioning frame 3 and the stamped back plate 11, enhancing the stability of the overall structure. The adhesive's bonding effect allows the display to withstand certain external impacts, preventing the positioning frame 3 from deforming outward and ensuring the structural integrity and normal operation of the display.

[0057] In this embodiment, the panel 2 is composed of two layers of glass, namely a first glass 22 and a second glass 23. This double-layer design not only improves the structural strength of the panel, but also optimizes the display effect.

[0058] An upper polarizer 21 is installed on the upper surface of the first glass 22. This polarizer filters light, ensuring that only light from a specific direction can pass through, significantly improving the clarity and color saturation of the displayed image. This design reduces light scattering and interference when displaying images on the LCD display, allowing users to see more realistic and detailed images.

[0059] The lower end surface of the second glass 23 is equipped with a lower polarizer 24. Working in conjunction with the upper polarizer 21, the lower polarizer 24 further enhances light control, ensuring image stability and clarity. Even in complex lighting environments, users can enjoy a consistent visual experience.

[0060] It's worth noting that color filter glass (CF glass) is used for the first glass 22. This type of glass effectively filters and distributes the color components in light, enabling the LCD display to present richer and more accurate colors. Meanwhile, thin-film transistor glass (TFT glass) is used for the second glass 23. As a core component of LCD displays, TFT glass's excellent electrical performance and stability are key to ensuring high-quality display operation.

[0061] In this embodiment, the combination of double-layer glass and polarizer is used to improve the quality of the LCD display in terms of picture quality, color reproduction, and visual comfort.

[0062] In this embodiment, the backlight source 1 is a key component of the LCD display, providing stable and uniform light for the display, ensuring clear images. The backlight source 1 primarily comprises a stamped backplate 11, which not only provides a stable support for the entire backlight source but also protects and secures the internal components.

[0063] Light sources 12 are located at the bottom of the stamped backplate 11. These light sources are the core of the backlight source, and the light they generate is the foundation of the display image. To ensure full utilization and even distribution of light, a reflector 13 is placed above the light sources 12, located on one side of the reflector 13. The reflector 13 effectively reflects downward-scattered light upward, improving light utilization and enhancing image brightness.

[0064] A light guide plate 14 is placed above the reflector 13. Light from the light source 12 shines onto this plate, which transforms the point light from the light source 12 into a uniform surface light source, ensuring that every corner of the display receives sufficient and even light. This design significantly improves the uniformity and consistency of the displayed image.

[0065] In this embodiment, the edge of the reflective sheet 13 has a vertically upward rib. This unique design not only echoes the shape of the stamped back plate 11, but more importantly, it can effectively reflect the light generated by the light source 12 to ensure that the light is utilized to the greatest extent.

[0066] The reflective sheet 13, with its rib design, forms an enclosed area within which we place the light guide plate 14. The placement of the light guide plate 14 has been rigorously calculated and tested to ensure it can receive the light reflected by the reflective sheet 13 and evenly distribute it across the entire display area.

[0067] In order to further optimize the display effect, we set an optical film group 16 on the light guide plate 14. These films can finely adjust the direction and intensity of light, reduce glare and light spots, and make the picture more delicate and clear.

[0068] Furthermore, because the design of the optical film group 16 directly affects the final display effect of the LCD display, we carefully arrange different films in this group from bottom to top to ensure that light can be transmitted and presented to the user in an optimal manner.

[0069] First, the lower diffuser 161 is located at the bottom layer. Its main function is to diffuse the light emitted from the light guide plate 14 to make the light more evenly distributed in the entire display area. This step lays a solid foundation for subsequent light processing.

[0070] Next, the lower brightness enhancement sheet 162 is responsible for focusing and enhancing the diffused light. Through a specific optical structure, the lower brightness enhancement sheet 162 can effectively improve the utilization rate of light, making the picture brighter and more vivid.

[0071] Subsequently, the upper brightness enhancement sheet 163 further enhances the light to ensure that the light does not attenuate too much during transmission, thereby maintaining high brightness and clarity of the image.

[0072] Finally, the upper diffuser 164 is located at the top layer of the optical film group. Its function is to diffuse and adjust the light processed by the previous film to ensure that the light can be presented to the user in the softest and most uniform manner, avoiding glare and dazzling.

[0073] Through this progressive optical processing process, our LCD displays can provide users with a more comfortable and natural visual experience.

[0074] In this embodiment, a cushioning rubber pad 15 is added to the inner wall of the stamped back plate 11. Made of a highly elastic, wear-resistant rubber material, the cushioning rubber pad 15 effectively absorbs and cushions potential shocks and vibrations, thereby protecting the internal electronic components from damage. Furthermore, its soft material prevents noise generated by contact with hard objects.

[0075] One end of the reflective sheet 13 is tightly in contact with the buffer rubber pad 15. This design not only ensures the stability and positional accuracy of the reflective sheet 13, but also reduces deformation or displacement of the reflective sheet 13 due to external factors through the elastic effect of the buffer rubber pad 15, thereby ensuring the light reflection effect of the backlight source.

[0076] Example 2

[0077] An LCD display structure, such as Figure 7 As shown, its structure is substantially the same as that of Example 1, except that structural grooves 36 are provided on the frame-shaped body 31 on both sides of the crimping portion 33. This increases the amount of outward deformation of the crimping portion 33 during the downward pressing and installation of the panel 2, making it suitable for products with thicker wall positioning frames 3. If the wall thickness of the plastic frame is relatively thin, the product structure of Example 1 can be used.

[0078] In summary, the LCD display structure provided by this utility model demonstrates outstanding performance and innovation in many aspects. First, its clear image and excellent visual effects provide users with an ultimate viewing experience. This is due to our carefully designed backlight and panel structure, as well as high-quality optical components, which together ensure that the display can produce a detailed and realistic image.

[0079] While achieving outstanding display quality, we also focused on lightweight design. By eliminating the traditional stamped frame, this product achieves significant weight reduction, making the display even lighter. This improvement not only makes the product easier to carry and install, but also reduces shipping costs and improves market competitiveness.

[0080] Furthermore, our designs take cost optimization into full consideration. By reducing the number of components and streamlining the production process, we not only lower material costs but also further control production costs. This gives our LCD monitors a significant price advantage, better meeting the needs of a wide range of consumers.

[0081] It's worth noting that our snap-in structure is integrated into the positioning frame and stamped backplate using an injection molding process. This design allows for flexible adjustment of the slot size and position based on actual needs, providing greater freedom in product design. Compared to the limitations of traditional stamping processes on frame width, our design is undoubtedly more innovative and practical. It not only accommodates panels of various sizes, but also ensures a secure and reliable connection.

[0082] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0083] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0084] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An LCD display structure comprising a backlight source and a panel, wherein the backlight source is located below the panel, and positioning frames are provided on the outer sides of the backlight source and the panel; characterized in that: The positioning frame includes a frame-shaped body, the upper end of the frame-shaped body extends inwardly to form a overlapping platform for placing the panel, and an inner cavity for inserting and placing the stamped backboard is formed on the frame-shaped body; the upper end of the frame-shaped body has a crimping portion extending inwardly, and the crimping portion is located above the overlapping platform. When the panel is placed on the overlapping platform, the crimping portion is pressed against the edge of the panel; a card slot is provided on the outside of the frame-shaped body, and the edge of the stamped backboard is bent upward to form a bending portion, and a card block corresponding to the card slot is provided on the bending portion, and a snap connection is formed between the backlight source and the positioning frame through the card block and the card slot.

2. The LCD display structure according to claim 1, wherein: The positioning frame is a plastic frame.

3. The LCD display structure according to claim 2, wherein: An abutment portion protruding inward is provided on the inner side of the frame-shaped body below the crimping portion.

4. The LCD display structure according to claim 2, wherein: A buffer pad is provided on the overlapping platform, and the panel is provided on the buffer pad.

5. The LCD display structure according to claim 2, wherein: A fixing glue is provided between the positioning frame and the stamping back plate to form a fixing glue layer.

6. The LCD display structure according to claim 2, wherein: The upper end surface of the crimping portion is a guide curved surface inclined downward toward the inside.

7. The LCD display structure according to claim 1, wherein: The panel includes a first glass and a second glass distributed up and down, the upper end surface of the first glass is provided with an upper polarizer, and the lower end surface of the second glass is provided with a lower polarizer; the first glass is a color filter glass, and the second glass is a thin film transistor glass.

8. The LCD display structure according to claim 1, wherein: The backlight source includes a stamped backplate, a light source is provided at the bottom of the stamped backplate, a reflective sheet is provided on the light source, and the light source is located on one side of the reflective sheet; a light guide plate is provided on the reflective sheet and is opposite to the light source, and an optical film group is provided on the light guide plate; the optical film group is provided with a lower diffuser, a lower brightness enhancement sheet, an upper brightness enhancement sheet and an upper diffuser in sequence from bottom to top.

9. The LCD display structure according to claim 1, wherein: An outer cover frame is provided on the positioning frame, and the outer cover frame covers the positioning frame. A window is provided on the outer cover frame, and the window is used to expose the display area of the panel.

10. The LCD display structure according to any one of claims 1 to 9, characterized in that: Structural grooves are provided on the frame-shaped body at both sides of the crimping portion.

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