Display screen light bar and raster display screen

Abstract

The application discloses a display screen lamp strip and a grating display screen, and the display screen lamp strip comprises a main body, a lamp plate, a mask and a positioning piece, the main body is internally provided with a mounting groove, the lamp plate is mounted in the mounting groove, the lamp plate is provided with a plurality of lamp beads on the side of the groove opening of the mounting groove, a plurality of lamp openings are formed in the mask, the mask is positioned and connected with the main body through the positioning piece, and the mask covers the groove opening of the mounting groove, so that the plurality of lamp openings and the plurality of lamp beads one-to-one correspond. The application effectively solves the problems of uneven deviation, uneven joint and uneven display and light emission caused by positioning failure.

Description

Technical Field

[0001] This application relates to the technical field of display screens, and more particularly to a display screen light bar and grating display screen. Background Technology

[0002] In the existing structure of grating display screen light strips, the mask is used to cover the LED beads for protection and light uniformity. The assembly and positioning of the mask with the light strip profile directly affects the light strip's luminous effect. However, the existing technology lacks an effective positioning method for the light strip mask, which is prone to positioning failure: the mask randomly shifts in the vertical direction of the light strip profile, irregularly moving towards one side of the LED beads and blocking their light emission. This results in inconsistent luminous intensity and luminous range of the LED beads covered by different masks, destroying the uniformity of light emission in the light strip. At the same time, the mask positioning failure causes significant differences in the width and flatness of the seams between adjacent masks, leading to display defects such as uneven display and screen distortion in the grating display screen.

[0003] Furthermore, the lack of effective positioning benchmarks means that workers have no clear operating references during assembly, requiring repeated adjustments to the mask position. This not only reduces production efficiency but also makes it easy for workers to touch the LED beads during the adjustment process, causing the welding points between the LED beads and the LED strip profile to detach, resulting in LED bead damage, increased product defect rate, and production costs. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a display screen light bar and a grating display screen, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution: On one hand, a display screen light strip is provided, comprising: a main body, a light board, a cover, and a positioning component. The main body has a mounting groove, and the light board is installed in the mounting groove. Multiple LEDs are arranged on the side of the light board facing the groove opening. Multiple LED openings are provided on the cover. The cover is positioned and connected to the main body via the positioning component, and the cover covers the groove opening, so that the multiple LED openings correspond one-to-one with the multiple LEDs. The positioning component achieves precise positioning of the cover and the main body, ensuring accurate alignment of the LED openings and LEDs, thus solving problems of uneven light emission, display defects, and LED damage, improving display quality and production efficiency.

[0006] Furthermore, the mask has a positioning hole, and the lamp board has a locking hole. The positioning component passes through the positioning hole and locks itself in the locking hole. Through the cooperation of the positioning hole, the locking hole, and the positioning component, precise positioning of the mask and the lamp board is achieved, preventing lamp opening misalignment, ensuring consistent LED illumination, enhancing connection stability, and improving assembly efficiency.

[0007] Furthermore, the face mask has a clearance groove on the side facing the lamp panel, and the clearance groove connects to the edge of the positioning hole. The clearance groove on the face mask connects to the edge of the positioning hole, which can accommodate the sealant climbing protrusion, avoids interfering with the assembly of the positioning component, ensures accurate positioning, and ensures stable alignment of the lamp holder and the lamp bead.

[0008] Furthermore, the face mask has fastening components on both sides, and the outer side of the main body has a slot that engages with the fastening components. The fastening components on both sides of the face mask engage with the slot on the outer side of the main body, avoiding the sealant and preventing interference from profile deformation, reducing the difficulty of process control, reducing damage to the fasteners, and ensuring stable assembly of the face mask and precise alignment of the lamp holder and lamp beads.

[0009] Furthermore, the fastener has a hollowed-out center. This hollowed-out center adopts a through-hole design, which facilitates mold processing, reduces manufacturing difficulty, and does not affect the fastening strength, thus improving mask production efficiency and assembly stability.

[0010] Furthermore, at least the left and right sidewalls of the lamp opening are inclined to increase the light emission angle of the lamp beads on the left and right sides. The inclined left and right sidewalls of the lamp opening can reduce light obstruction, increase the left and right light emission angle of the lamp beads, effectively widen the left and right viewing angle, and improve the display brightness and consistency when viewed from different positions.

[0011] Furthermore, the side of the mask facing away from the lamp panel is a reflective surface, and a reinforcing section is provided between each pair of adjacent lamp openings. The reflective surface on the side of the mask facing away from the lamp panel reduces light loss and increases brightness. The reinforcing section between adjacent lamp openings enhances the mask's strength and also divides the reflective surface to reduce ambient light interference and improve display contrast.

[0012] Furthermore, the reinforcing part is a grid-like reinforcing rib. The grid-like reinforcing rib can significantly improve the deformation resistance of the mask to stabilize the alignment of the lamp ports, and can also uniformly divide the reflective surface to reduce ambient light interference and improve contrast. Moreover, it is lightweight and adaptable to small-pitch layouts without affecting the transparency of the display screen.

[0013] Furthermore, the lamp port near one end of the mask is the first lamp port, and the one adjacent to the first lamp port is the second lamp port. The positioning hole is located between the first lamp port and the second lamp port. The space between the two lamp ports can be used to avoid structural interference, constrain the offset of the mask end to ensure accurate alignment of the lamp port and the lamp bead, and also facilitate the installation of positioning components, improving assembly efficiency.

[0014] On the other hand, a grating display screen is also provided, comprising: a plurality of display screen light strips as described above, wherein the plurality of display screen light strips are arranged at intervals.

[0015] The beneficial effects of this application are as follows: the positioning component can accurately position the mask and the main body, and can effectively constrain the displacement of the mask and achieve precise alignment between the lamp port and the lamp bead. This completely solves the problem of lamp bead occlusion caused by mask offset in the prior art, and makes the luminous intensity and luminous range of each lamp bead consistent, which greatly improves the overall luminous uniformity of the light strip and provides a stable and uniform light source foundation for the display screen. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a perspective view of the display screen light strip described in the embodiment of this application; Figure 2 This is an exploded view of the display screen light strip described in the embodiments of this application; Figure 3 This is a front view of the face mask described in the embodiment of this application; Figure 4 This is a schematic diagram of the back of the face mask described in the embodiments of this application.

[0018] In the diagram: 1. Main body; 101. Slot; 2. Lamp panel; 201. Locking hole; 3. Face mask; 301. Lamp opening; 302. Positioning hole; 303. Reflective surface; 304. Reinforcing part; 305. Clearance groove; 3011. Chamfered structure; 4. Positioning component; 5. Lamp bead; 6. Fastening component. Detailed Implementation

[0019] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the manufacturing and practical application of grating displays, the LED strip, as a core component for realizing the display's light-emitting function, directly determines the uniformity of light emission, visual display effect, and overall product yield of the display based on its structural stability and assembly precision. A typical structure of an existing grating display LED strip includes: an LED strip profile providing a mounting support base, LED beads fixed to the surface of the LED strip profile and arranged at preset intervals, and a cover placed on the outside of the LED strip profile to cover the LED beads. This cover serves the dual purpose of protecting the LED beads from external impacts and dust contamination, as well as uniformly diffusing the light emitted by the LED beads. Therefore, the precise assembly and positioning of the cover and the LED strip profile is a crucial step in the LED strip assembly process.

[0023] However, in the current mainstream LED strip assembly process, there is generally a lack of reliable positioning structures or mechanisms between the mask and the LED strip profile, making the mask prone to positioning failure during assembly and subsequent use. Specifically, this positioning failure manifests as the mask randomly shifting without constraint in the vertical direction of the LED strip profile. During this shift, the mask irregularly moves towards one side of the LED due to the lack of positioning limits, thus obstructing the light-emitting area of ​​the LED to varying degrees. Due to the randomness of the shift amplitude and direction of different masks, the actual light-emitting area, light intensity, and light-emitting range of the LEDs covered by each mask vary significantly, directly disrupting the overall light emission uniformity of the LED strip.

[0024] Furthermore, mask positioning failure can also cause seam problems between adjacent masks: due to the irregular positional offset of individual masks, the mating edges of two adjacent masks cannot be precisely aligned, resulting in significant inconsistencies in the width and flatness of the seams between masks. Some areas have seams that are too wide, while others have seams that are too narrow or even overlap. When such light strips are integrated into the grating display screen, the inconsistent seams will form obvious dividing lines or light-dark boundaries in the display screen image, ultimately manifesting as uneven display in some areas, screen distortion, image breakage, and other serious display defects, significantly reducing the visual experience and product competitiveness of the display screen.

[0025] Furthermore, from a manufacturing perspective, the lack of an effective positioning benchmark between the faceplate and the LED strip profile means workers lack clear operational guidelines when assembling the faceplate. They must repeatedly adjust the faceplate position based on subjective judgment to attempt alignment. This process not only significantly increases assembly time and reduces production efficiency, but more importantly, workers are highly susceptible to directly touching or indirectly squeezing the LED beads during repeated adjustments. Since the LED beads are fixed to the LED strip profile with glue, external force can easily cause the LED bead leads to detach from the LED strip profile, resulting in functional damage to the LED beads.

[0026] In summary, the existing light strip covers for grating displays suffer from multiple technical challenges, including poor positioning reliability, low uniformity of light emission from LED beads, numerous display defects, low production efficiency, and low product yield. These issues fail to meet the high display quality and high production stability requirements of grating displays. Therefore, it is urgent to improve the positioning structure or method of the light strip covers to solve the aforementioned technical problems.

[0027] Therefore, as Figures 1-4 As shown, this embodiment provides a display screen light strip, including: a main body 1, a light board 2, a cover 3, and a positioning member 4. The main body 1 is provided with a mounting groove, and the light board 2 is installed in the mounting groove. The light board 2 is provided with a plurality of lamp beads 5 on the side facing the groove opening of the mounting groove. The cover 3 is provided with a plurality of lamp openings 301. The cover 3 is positioned and connected to the main body 1 through the positioning member 4, and the cover 3 covers the groove opening of the mounting groove so that the plurality of lamp openings 301 correspond one-to-one with the plurality of lamp beads 5.

[0028] Based on the above scheme, a pre-set mounting groove is provided inside the main body 1 for fixing the lamp plate 2, while the positioning component 4 directly connects the mask 3 to the main body 1, forming a rigid positioning constraint. This constraint precisely limits the irregular movement of the mask 3 along the vertical direction of the main body 1, preventing the mask 3 from randomly shifting due to lack of positioning, and ensuring that the mask 3 and the main body 1 always maintain a stable relative position. Multiple lamp openings 301 on the mask 3, guided by the positioning component 4, can precisely match the lamp beads 5 arranged at preset intervals on the lamp plate 2. When the mask 3 is closed in the mounting groove, the positioning component 4 calibrates the position of the mask 3, preventing the mask 3 from leaning towards one side of the lamp beads 5, ensuring that the luminous area of ​​each lamp bead 5 can be completely transmitted through the corresponding lamp opening 301 without obstruction or uneven obstruction. Furthermore, all face masks 3 are assembled using positioning components 4 as a unified standard, achieving standardized positioning and connection with the main body 1. This ensures that when multiple light strips are arranged side-by-side, the mating edges of adjacent face masks 3 can be aligned at the same height based on the same standard. This prevents uneven seam widths, overlaps, or excessive gaps caused by the misalignment of a single face mask 3, structurally guaranteeing the integrity of the assembled light strips. In addition, positioning components 4 provide workers with a clear positioning reference for assembling face masks 3. Workers do not need to repeatedly adjust the position of face masks 3 based on subjective judgment; they only need to follow the guidance of positioning components 4 to complete the assembly. This process significantly reduces the probability of touching or squeezing the LED beads 5 due to repeated adjustments, preventing the LED beads 5 from detaching from the welding points of the light board 2 and reducing the risk of functional damage to the LED beads 5.

[0029] Overall, the innovative design of the positioning component 4 and the coordinated operation of all components have brought about significant beneficial effects: In terms of the light-emitting performance of the LED strip, the positioning component 4 effectively constrains the displacement of the mask 3 and achieves precise alignment between the lamp opening 301 and the LED beads 5, completely solving the problem of LED bead 5 obstruction caused by the offset of the mask 3 in the prior art. This ensures that the light intensity and light-emitting range of each LED bead 5 are consistent, greatly improving the overall light-emitting uniformity of the LED strip and providing a stable and uniform light source foundation for the display screen. In terms of the display quality of the display screen, the unified positioning benchmark allows the seams of adjacent masks 3 to be highly aligned, eliminating defects such as dividing lines and light-dark boundaries caused by inconsistent seams. This effectively avoids problems such as uneven display and screen distortion, significantly improving the image continuity and visual experience of the raster display screen and enhancing the product's market competitiveness. In terms of manufacturing, the positioning component 4 provides a clear reference for assembly operations, not only saving workers the process of repeatedly adjusting the mask 3, greatly shortening assembly time and improving production efficiency, but also reducing the damage of LED beads 5 due to improper operation, reducing product defect rate and rework costs, and improving production stability and economic benefits. In summary, this solution not only solves the core problems of existing technologies, but also takes into account performance improvement and production optimization, and has important practical value for product upgrading in the grating display industry.

[0030] Specifically, the face mask 3 has a positioning hole 302, and the lamp plate 2 has a locking hole 201. The positioning member 4 passes through the positioning hole 302 and locks itself in the locking hole 201. The positioning hole 302 on the face mask 3 and the lamp opening 301 are spatially offset to avoid structural interference. The locking hole 201 on the lamp plate 2 is correspondingly positioned to avoid the lamp bead 5, ensuring that the positioning member 4 will not touch the lamp bead 5 during assembly. The positioning member 4, by passing through the positioning hole 302 on the face mask 3 that avoids the lamp opening 301 and locking itself in the locking hole 201 on the lamp plate 2 that avoids the lamp bead 5, establishes a direct and rigid positioning connection between the face mask 3 and the lamp plate 2. Specifically, the positioning hole 302 and the locking hole 201 are designed with preset dimensional accuracy and positional tolerance to form a precise alignment reference. When the positioning component 4 passes through the positioning hole 302 and locks into the locking hole 201, it can forcibly constrain the vertical displacement of the mask 3, preventing the mask 3 from shifting to one side of the lamp bead 5, and avoiding light transmission obstruction or structural interference caused by the overlap of the positioning structure with the lamp opening 301 and the lamp bead 5. Ultimately, it ensures that the lamp opening 301 on the mask 3 and the lamp bead 5 on the lamp board 2 are always precisely aligned. At the same time, the locking fit between the positioning component 4 and the locking hole 201 can form a stable fixing effect, preventing the mask 3 from loosening or shifting due to vibration, impact, or other factors during subsequent use.

[0031] Meanwhile, the mask 3 has a clearance groove 305 on the side facing the lamp plate 2, and the clearance groove 305 connects to the edge of the positioning hole 302. When the lamp plate 2 is installed in the mounting groove of the main body 1, it needs to be fixed by forming a sealing layer through glue injection. Before curing, the glue will climb up along the surface of the lamp plate 2, the inner wall of the mounting groove, and other object surfaces due to surface tension, and finally form a glue layer protrusion on the lamp plate 2 similar to a volcano cone. If the side of the mask 3 facing the lamp plate 2 is not specially designed, the glue protrusion may directly contact the edge of the positioning hole 302 of the mask 3, resulting in adverse effects. On the one hand, the uncured glue may stick the mask 3 to the lamp plate 2, making it impossible to accurately align the mask 3 during assembly; on the other hand, the cured glue protrusion will form a rigid block, forcing the mask 3 to deviate from the preset position, destroying the fitting accuracy of the positioning part 4 with the positioning hole 302 and the locking hole 201, and thus affecting the alignment of the lamp port 301 and the lamp bead 5.

[0032] The clearance groove 305 on the mask 3 connects to the edge of the positioning hole 302, and its core function is to provide dedicated space for the volcano cone formed by the rising adhesive. When the adhesive rises along the surface of the lamp plate 2 to the corresponding area of ​​the positioning hole 302, the recessed structure of the clearance groove 305 can completely cover the adhesive protrusion, preventing the adhesive from directly contacting the edge of the positioning hole 302 or other key assembly surfaces of the mask 3. This design does not interfere with the fixing effect of the sealant layer on the lamp plate 2, and also eliminates the physical obstruction of the adhesive protrusion on the assembly of the mask 3, ensuring that the mask 3, guided by the positioning component 4, can achieve a precise and stable positioning connection with the lamp plate 2 and the main body 1.

[0033] As an optional specific implementation, the positioning component 4 can be a permanent magnet. A permanent magnet is embedded in the mounting groove of the main body 1, and a corresponding position on the face mask 3 is provided with a magnetically attracted metal sheet or another permanent magnet of opposite polarity. During assembly, the face mask 3 is magnetically attracted and adheres to the main body 1. The positions of the permanent magnet and the metal sheet are preset such that after attraction, the lamp opening 301 of the face mask 3 is precisely aligned with the lamp bead 5, and the normal constraint force generated by the magnetic attraction can limit the vertical displacement of the face mask 3. To avoid magnetic displacement, auxiliary positioning posts and positioning holes 302 can be added to the contact surfaces of the main body 1 and the face mask 3. After the positioning post is inserted into the positioning hole 302, it works in conjunction with the magnetic attraction to form a dual positioning of mechanical limiting and magnetic fixation. This structure is suitable for scenarios requiring frequent disassembly and has no mechanical wear.

[0034] Alternatively, a cylindrical locating pin is provided in the mounting groove of the main body 1, and a locating hole 302 matching the locating pin is provided at the corresponding position of the face mask 3. The locating pin and the locating hole 302 adopt a transition fit. During assembly, the locating pin is inserted into the locating hole 302, and the fit between the hole wall and the pin wall restricts the displacement of the face mask 3 in the vertical and horizontal directions, ensuring the accurate positioning of the face mask 3. To enhance the fixing effect, a threaded section can be provided at the end of the locating pin, which can be locked with a nut. This structure is easy to ensure machining accuracy, has high positioning repeatability, and is suitable for scenarios with strict accuracy requirements.

[0035] In existing mask 3 assembly structures, for aesthetic reasons, the mask 3 is mostly assembled onto the main body 1 using an internal snap-fit ​​structure. However, the internal snap-fit ​​installation structure has some unavoidable defects. On the one hand, the internal snap-fit ​​needs to be set on the side of the mask 3 facing the inside of the mounting groove to achieve snap-fit ​​fixation with the inside of the main body 1; on the other hand, in small-pitch grating screens, due to the use of surface-mount LEDs 5 and the relatively high package height of ICs and other components, in order to ensure the reliability of the lamp board 2 and components, the sealant needs to be potted to a high position, covering the edge of the lamp board 2 and the bottom of some components. This results in the position of the internal snap-fit ​​inevitably overlapping with the sealant potting area, which will cause the internal snap-fit ​​to directly contact the sealant during the snap-fit ​​process. If the fasteners are fastened after the sealant has fully cured, the high hardness of the cured adhesive layer will prevent the inner clips from being inserted. If the fasteners are fastened before the sealant has cured, the uncured adhesive will stick to the clips, causing assembly jamming or positioning misalignment. Therefore, the fastening action must be strictly limited to the window period when the sealant is surface dry but not fully cured. This places extremely high demands on the process sequence and time control, and assembly failure is very likely due to time deviations.

[0036] On the other hand, the fastening path of the inner buckle needs to pass through the inner edge of the main body 1, and the buckle position on the inner side of the main body 1 needs to be precisely aligned during fastening. However, the profile may undergo slight deformation due to stress release during processing and transportation, or there may be slight alignment errors in the assembly tooling. At this time, during the fastening process, the edge of the inner buckle is prone to collision and interference with the top surface of the profile. Since the gap between the inner buckle and the top surface of the profile is extremely small, slight deviation can cause the buckle to be squeezed and damaged, resulting in material loss and process abnormalities.

[0037] In this embodiment, by changing the fastening structure to an external fastening type, the aforementioned technical problems are fundamentally solved. Specifically, the fastening parts 6 of the mask 3 are located on both sides, and the corresponding slots 101 of the main body 1 are opened on their outer sides. During assembly, after the mask 3 is closed onto the mounting slot, the fastening parts 6 on both sides of the mask 3 are pressed laterally to engage with the slots 101 on the outer side of the main body 1. The mating area between the fastening parts 6 and the slots 101 is far from the sealant, completely avoiding contact with the adhesive layer. At the same time, the force direction of the fastening action is the horizontal direction on the outer side of the main body 1, and the movement path of the fastening parts 6 does not pass through the top surface of the main body 1. Even if the main body 1 has slight deformation or the tooling is slightly misaligned, the outer space of the slots 101 can accommodate minor errors, and there will be no interference or squeezing between the fastening parts 6 and the top surface of the main body 1. Stable fixation can be achieved solely through the elastic engagement of the fastening parts 6 and the slots 101, ensuring the precise positioning of the mask 3 and the main body 1.

[0038] Furthermore, the fastener 6 has a hollow center. During the injection molding process of the face mask 3, the central part of the fastener 6 does not require a solid structure. Instead, the hollow area is formed by the direct docking of the upper and lower molds. The upper mold corresponds to the upper contour of the fastener 6, and the lower mold corresponds to the lower contour of the fastener 6. The two fit precisely at the central position of the fastener 6. When the mold is closed, the hollow space is directly formed by the contact of the upper and lower molds, eliminating the need for additional complex mold mechanisms such as sliders and core pulling to avoid solid parts. The key to this design is that the force on the fastener 6 mainly relies on the solid structures on the upper and lower sides. The hollow center does not affect its fastening strength. At the same time, the direct contact of the upper and lower molds replaces the complex forming mechanism, simplifying the forming process of the fastener 6 from the mold design level. This allows a complex structure that might otherwise require multiple sliders to work together to be processed simply by aligning the upper and lower molds.

[0039] In traditional designs, the left and right sidewalls of the lamp opening 301 are mostly vertical, meaning they are perpendicular to the surface of the lamp panel 2. This significantly obstructs the lateral light emission of the LED beads 5. When the LED beads 5 emit light, the portion of the light emitted to the left and right that forms an acute angle with the vertical sidewall is directly blocked and cannot pass through the lamp opening 301. This results in only a small angle range directly facing the lamp opening 301 receiving sufficient light, ultimately manifesting as a narrow lateral viewing angle. Viewers outside this range will experience a sudden drop in display brightness or blurred content. However, by designing at least the left and right sidewalls of the lamp opening 301 to be inclined, the sidewalls form a certain angle with the surface of the lamp panel 2. This angle is preset according to the light-emitting characteristics of the LED beads 5. The inclined sidewalls expand outwards to the left and right, increasing the effective light emission channel of the lamp opening 301 in the lateral direction. At this time, the large-angle light emitted by the LED 5 to the left and right sides, which would originally be blocked by the vertical sidewall, can pass smoothly through the lamp opening 301 along the guide of the inclined sidewall. The inclined sidewall is no longer a barrier. Instead, by optimizing the light path, it reduces the obstruction of the light to the left and right, allowing light from more angles to be emitted effectively, thereby significantly increasing the light emission angle of the LED 5 on the left and right sides and widening the overall viewing angle.

[0040] In addition, if only the left and right sidewalls of the lamp holder 301 are tilted, and the upper and lower sidewalls remain vertical, the light emitted by the LED 5 in the vertical direction will still face similar obstruction problems. The portion of the light emitted by the LED 5 in the vertical direction that forms an acute angle with the vertical sidewalls will be directly blocked by the sidewalls and cannot pass through the lamp holder 301, resulting in a limited vertical viewing angle. When viewers look at the screen from above or below, problems such as decreased brightness and blurred image will occur due to the obstructed light, especially when the screen is installed at a high or low position, where the narrow vertical viewing angle is more pronounced. However, by also tilting the upper and lower sidewalls of the lamp holder 301, the upper and lower sidewalls form a preset tilt angle with the surface of the lamp panel 2, and its operating logic is the same as that of the left and right sidewall tilt. The tilted sidewalls will expand outwards in the vertical direction, widening the effective light emission channel of the lamp holder 301 in the vertical direction. At this time, the large-angle light emitted by the LED 5 in the upward and downward directions can pass smoothly through the inclined upper and lower side walls, reducing the light blockage in the upward and downward directions, thereby significantly increasing the light emission angle of the LED 5 on the upper and lower sides and widening the full viewing angle.

[0041] Among them, such as Figure 3 As shown, the left and right sidewalls or the upper and lower sidewalls are inclined, which is equivalent to setting a chamfer structure 3011 on the sidewalls.

[0042] In the existing solution, the mask 3 has two potential problems: First, the lamp ports 301 of the small-pitch grating screen are densely packed. After a large number of lamp ports 301 are opened on the mask 3, the connection area between adjacent lamp ports 301 is narrow, which can easily lead to insufficient overall structural strength of the mask 3. It is easy to deform under external force during assembly, transportation or use, which will damage the alignment accuracy between the lamp ports 301 and the lamp beads 5. Second, if the side of the mask 3 away from the lamp board 2 is a normal surface, some of the light emitted by the lamp beads 5 will be scattered to the outside of the mask 3, resulting in wasted light energy and affecting the display brightness. If a large-area reflective surface 303 is simply set, although it can reflect some scattered light, the large size of the reflective surface 303 will cause a large amount of ambient light to be reflected. The superposition of this reflected light with the effective light emission of the lamp beads 5 will blur the boundaries of the displayed content and reduce the contrast of the picture.

[0043] To address the aforementioned issues, a collaborative design of the reflective surface 303 and the reinforcing part 304 is employed. The reflective surface 303 is located on the side of the mask 3 facing away from the lamp panel 2. When the LED beads 5 emit light and scatter it outwards, the reflective surface 303 reflects this light back to the inside of the mask 3. After secondary reflection, the light is guided through the lamp opening 301, reducing light energy loss and improving the utilization rate of the LED beads 5. The solid structure between two adjacent lamp openings 301 serves as the reinforcing part 304. This rigid, non-transparent connector fills the weak areas between the lamp openings 301, increasing the thickness or connection area of ​​the local structure to enhance the overall deformation resistance of the mask 3. Simultaneously, the reinforcing part 304 divides the large reflective surface 303 into multiple independent small areas, preventing the reflective surface 303 from becoming a single unit. The smaller reflective surfaces 303 reflect less ambient light, and the reinforcing part 304 itself absorbs some ambient light, thereby reducing the interference of ambient light reflection on the displayed content and improving image contrast.

[0044] Specifically, the reinforcing part 304 is a grid-like reinforcing rib, that is, a continuous grid frame is formed by the crisscrossing rib structure. From a mechanical point of view, the longitudinal and transverse ribs of the grid-like reinforcing rib form a mutually supporting skeleton in the plane of the mask 3. The longitudinal ribs extend along the length of the lamp strips and connect adjacent lamp openings 301 in the same row; the transverse ribs are perpendicular to the longitudinal ribs and connect lamp openings 301 in different rows. The intersections of the ribs form stress dispersion nodes. When the mask 3 is subjected to external force, the grid frame can transfer local stress to the entire mask 3 through the longitudinal and transverse ribs, avoiding stress concentration in the weak areas between the lamp openings 301, thereby enhancing the overall structural stability of the mask 3.

[0045] From an optical perspective, the ribs of the mesh-like reinforcing ribs are themselves opaque entities. Their crisscrossing layout can evenly divide the reflective surface 303 on the side of the mask 3 facing away from the lamp panel 2 into multiple independent small units. This division method is more thorough than the single-direction reinforcing part 304. The longitudinal ribs restrict the continuous extension of the reflective surface 303 in the left and right directions, and the transverse ribs restrict the reflective surface 303 in the up and down directions from forming a whole. This greatly reduces the reflective surface area of ​​each small unit 303, effectively reducing the total amount of ambient light reflected on the reflective surface 303. At the same time, the ribs themselves can absorb some stray light, preventing reflected light from interfering with the effective light emission of the lamp beads 5, thereby enhancing the image contrast.

[0046] It is worth mentioning that the lamp port 301 near one end of the mask 3 is the first lamp port, and the one adjacent to the first lamp port is the second lamp port. The positioning hole 302 is located between the first lamp port and the second lamp port. The positioning hole 302 is close to the end of the mask 3 and located between the first lamp port and the second lamp port, which can directly constrain the deformation and displacement of the edge of the mask 3. As the first lamp port 301 at the end, the alignment accuracy of the first lamp port has a significant impact on the overall display consistency. This design can control the offset of the first lamp port and the second lamp port to a minimum, avoiding blurry display edges or abnormal brightness caused by misalignment of the end lamp ports 301.

[0047] Alternatively, the positioning hole 302 can be set in other positions of the mask 3, as long as the positioning hole 302 is offset from the lamp opening 301, and the locking hole 201 on the lamp plate 2 needs to be adjusted accordingly.

[0048] On the other hand, a grating display screen is also provided, comprising: a plurality of display screen light strips as described above, wherein the plurality of display screen light strips are arranged at intervals.

[0049] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0052] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A display screen light strip, characterized in that, include: The main body (1), lamp plate (2), face mask (3) and positioning component (4) are provided. The main body (1) is provided with an installation groove. The lamp plate (2) is installed in the installation groove. The lamp plate (2) is provided with multiple lamp beads (5) on the side facing the groove of the installation groove. The face mask (3) is provided with multiple lamp openings (301). The face mask (3) is positioned and connected to the main body (1) through the positioning component (4). The face mask (3) covers the groove of the installation groove so that the multiple lamp openings (301) correspond one-to-one with the multiple lamp beads (5).

2. The display screen light strip according to claim 1, characterized in that, The mask (3) has a positioning hole (302), the lamp plate (2) has a locking hole (201), and the positioning member (4) passes through the positioning hole (302) and locks itself in the locking hole (201).

3. The display screen light strip according to claim 2, characterized in that, The mask (3) has a clearance groove (305) on the side facing the lamp plate (2), and the clearance groove (305) is connected to the edge of the positioning hole (302).

4. The display screen light strip according to any one of claims 1-3, characterized in that, The mask (3) has fasteners (6) on both sides, and the outer side of the main body (1) has a slot (101) that engages with the fasteners (6).

5. The display screen light strip according to claim 4, characterized in that, The middle part of the fastener (6) is hollowed out.

6. The display screen light strip according to any one of claims 1-3, characterized in that, The lamp opening (301) has at least two inclined sides to increase the light emission angle of the lamp beads (5) on the left and right sides.

7. The display screen light strip according to any one of claims 1-3, characterized in that, The side of the mask (3) facing away from the lamp plate (2) is a reflective surface (303), and a reinforcing part (304) is provided between each pair of adjacent lamp openings (301).

8. The display screen light strip according to claim 7, characterized in that, The reinforcing part (304) is a grid-shaped reinforcing rib.

9. The display screen light strip according to claim 2, characterized in that, The lamp opening (301) near one end of the mask (3) is the first lamp opening, and the one adjacent to the first lamp opening is the second lamp opening. The positioning hole (302) is located between the first lamp opening and the second lamp opening.

10. A grating display screen, characterized in that, include: A plurality of display screen light strips as described in any one of claims 1-9, wherein the plurality of display screen light strips are arranged at intervals.

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