High-reliability narrow-frame Mini-COB display screen

By combining a fixed block, rotating wheel, and limiting rod, the shortcomings of the narrow-bezel Mini-COB display in angle adjustment and fixation are solved, enabling precise multi-angle adjustment and stable use.

CN224414800UActive Publication Date: 2026-06-26NANJING FEIJIAN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING FEIJIAN ELECTRONIC TECH CO LTD
Filing Date
2025-10-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing narrow-bezel Mini-COB displays suffer from cumbersome operation and poor stability in terms of angle adjustment and fixation, failing to meet the usage needs of different users and scenarios.

Method used

The system employs a combination structure consisting of a fixed block, a first rotating rod, a rotating wheel, a limiting rod, a baffle, and a spring. Through the precise engagement of the limiting rod with the limiting hole and the support of the spring, the system enables multi-angle adjustment and precise fixation of the display screen. The adjustment range is further expanded by combining the rotating mechanism.

Benefits of technology

It achieves precise multi-angle adjustment and stable fixation of the display screen, avoiding angle deviation and meeting the usage needs in different scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to display screen technical field, concretely relates to a high reliability narrow frame Mini - COB display screen, including display screen body, one end of display screen body is fixed with connecting plate, the outside of connecting plate is equipped with fixed block, the inside fixed of fixed block has first rotary lever, the outside rotation of first rotary lever is connected with frame, the both sides of frame inside are all set up with first cavity, the both ends of first rotary lever extend to the inside of first cavity, and the both ends of first rotary lever outside are all fixed with rotating wheel, two rotating wheels are located in the inside of two first cavities. This utility model can be fixed accurately through fixed block and first rotary lever, rotating wheel, spacing rod, baffle, spring cooperation after display screen body is adjusted to the angle needed, effectively avoid its angle deviation in the use, guarantee use stability, can further expand the rotary adjustment range of display screen body simultaneously, satisfy the use demand under different scenes.
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Description

Technical Field

[0001] This utility model belongs to the field of display technology, specifically relating to a highly reliable narrow-bezel Mini-COB display. Background Technology

[0002] Currently, Mini-COB displays are increasingly widely used in office, commercial display, and home entertainment scenarios due to their clear image quality and narrow bezels. However, in actual use, existing narrow-bezel Mini-COB displays still have many problems affecting the user experience. Most products either lack adjustment functions altogether, and the fixed installation angle is difficult to adapt to the viewing habits of different users. For example, in office scenarios, employees of different heights need to frequently adjust their sitting posture when viewing the screen. Or they can only achieve small angle adjustments, which cannot meet the needs of multiple people to view the screen content from different positions when collaborating. Some adjustable-angle displays use simple and crude fixing methods, such as relying on screws for fixing. Adjustment requires tools, which is cumbersome, and the screws are prone to loosening after long-term use, causing the screen angle to shift on its own. Others use friction pads for fixing, but as the number of uses increases, the coefficient of friction decreases, and the fixing effect gradually weakens. The screen may change angle after a slight touch, seriously affecting the stability of use. Based on the above problems, this application proposes a highly reliable narrow-bezel Mini-COB display to improve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a highly reliable narrow-bezel Mini-COB display screen. It can be precisely fixed after the display screen body is adjusted to the required angle by the cooperation of a fixing block, a first rotating rod, a rotating wheel, a limiting rod, a baffle, and a spring. This effectively avoids angular deviation during use, ensures stability, and further expands the rotation adjustment range of the display screen body to meet the usage needs of different scenarios.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A high-reliability narrow-bezel Mini-COB display screen includes a display screen body. A connecting plate is fixed to one end of the display screen body. A fixing block is sleeved on the outer side of the connecting plate. A first rotating rod is fixed inside the fixing block. A frame is rotatably connected to the outer side of the first rotating rod. First cavities are formed on both sides of the frame. Both ends of the first rotating rod extend into the interior of the first cavities, and rotating wheels are fixed to both ends of the outer side of the first rotating rod. Two rotating wheels are located inside two first cavities. Limiting rods are slidably connected to both sides of the interior of the first cavities. A baffle is fixed to the outer side of the limiting rod. Multiple limiting holes are formed on the outer side of the rotating wheels, and the multiple limiting holes are arranged in a ring. The lower end of the limiting rod matches the limiting holes. A spring is fixed to the upper end of the baffle, located outside the limiting rod. The display screen also includes:

[0006] A rotating mechanism is mounted on the lower end of the frame.

[0007] In a preferred embodiment, limit plates are fixed on both sides of the baffle, and limit grooves are formed inside the frame on both sides of the baffle, and the limit plates and limit grooves are adapted to each other.

[0008] In a preferred embodiment, the frame has an annular groove inside, and the annular groove is located at the upper end of the limiting groove.

[0009] In a preferred embodiment, a first knob is fixed to the upper end of the limiting rod, and the outer side of the first knob is provided with anti-slip texture, the anti-slip texture being made of rubber.

[0010] In a preferred embodiment, the rotating mechanism includes a rotating plate, a second rotating rod, a second knob, and a first positioning rod. The rotating plate is rotatably connected to the inside of the frame. The second rotating rod is fixed to the lower end of the rotating plate, and the lower end of the second rotating rod extends to the lower end of the frame. The second knob is threaded to the lower end of the frame. The first positioning rod is fixed to the upper end of the second knob. The lower end of the rotating plate has a plurality of first positioning holes arranged in a ring, and the first positioning rod and the first positioning holes are adapted to each other.

[0011] In a preferred embodiment, the upper end of the connecting plate is provided with a plurality of second positioning holes, which are arranged vertically. The fixing block is internally threaded with a third knob, and the lower end of the third knob is fixed with a second positioning rod, which is adapted to the second positioning holes.

[0012] In a preferred embodiment, both sides of the connecting plate are fixed with sliding grooves, and the fixing block has sliding plates inside and located on both sides of the connecting plate, and the sliding grooves and sliding plates are compatible.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model enables multi-angle adjustment of the Mini-COB display screen body. Through the cooperation of the fixing block, the first rotating rod, the rotating wheel, the limiting rod, the baffle, and the spring, the display screen body can be precisely fixed after being adjusted to the required angle, effectively preventing angle deviation during use and ensuring stability. In addition, the rotating mechanism further expands the rotation adjustment range of the display screen body to meet the usage needs in different scenarios. Attached Figure Description

[0015] Figure 1 This is a top view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating mechanism of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the connecting plate and fixing block of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 10. Display screen body; 11. Connecting plate; 12. Fixing block; 13. First rotating rod; 14. Frame; 15. First cavity; 16. Rotating wheel; 17. Limiting rod; 18. Baffle; 19. Limiting hole; 20. Spring; 21. Limiting plate; 22. Limiting groove; 23. Annular groove; 24. First knob; 30. Rotating mechanism; 31. Rotating plate; 32. Second rotating rod; 33. Second knob; 34. First positioning rod; 35. First positioning hole; 36. Second positioning hole; 37. Third knob; 38. Second positioning rod; 39. Slide groove; 40. Slide plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] Please see the appendix Figures 1 to 3 As shown, this utility model provides a highly reliable narrow-bezel Mini-COB display screen, including a display screen body 10. A connecting plate 11 is fixed to one end of the display screen body 10. A fixing block 12 is sleeved on the outer side of the connecting plate 11. A first rotating rod 13 is fixed inside the fixing block 12. A frame 14 is rotatably connected to the outer side of the first rotating rod 13. First cavities 15 are formed on both sides inside the frame 14. Both ends of the first rotating rod 13 extend into the interior of the first cavity 15, and rotating wheels 16 are fixed to both ends of the outer side of the first rotating rod 13. Two rotating wheels 16 are located inside the two first cavities 15. Limiting rods 17 are slidably connected to both sides inside the first cavity 15. A baffle 18 is fixed to the outer side of the limiting rod 17. Multiple limiting holes 19 are formed on the outer side of the rotating wheels 16, and the multiple limiting holes 19 are arranged in a ring. The lower end of the limiting rod 17 is adapted to the limiting holes 19. A spring 20 is fixed to the upper end of the baffle 18, located outside the limiting rod 17. The system also includes:

[0026] Rotating mechanism 30 is mounted on the lower end of frame 14.

[0027] In this embodiment, a connecting plate 11 is fixed to one end of the display screen body 10. A fixing block 12 is sleeved on the outside of the connecting plate 11. A first rotating rod 13 is fixed inside the fixing block 12. The outside of the first rotating rod 13 is rotatably connected to the frame 14. When it is necessary to adjust the angle of the display screen body 10, the connecting plate 11, the fixing block 12, and the first rotating rod 13 can be rotated together by rotating the display screen body 10. At this time, the lower end of the limiting rod 17 is located at the upper end of the limiting hole 19. When the first rotating rod 13 rotates, it will drive the rotating wheels 16 located at both ends in the first cavities 15 on both sides inside the frame 14 to rotate synchronously. During the process, the limiting rods 17, which are slidably connected on both sides inside the first cavity 15, will always maintain a downward trend under the elastic force of the spring 20. When rotated to the required angle, the lower end of the limiting rod 17 will precisely engage with the corresponding hole in the multiple limiting holes 19 arranged in a ring on the outside of the rotating wheel 16. At the same time, the baffle 18 on the outside of the limiting rod 17 will support the spring 20, thereby fixing the angle of the display body 10. In addition, the rotating mechanism 30 assembled at the lower end of the frame 14 can further drive the frame 14 and the entire display body 10 to rotate, expanding the rotation adjustment range of the display body 10 and meeting the usage needs in different scenarios. Through the cooperation of the first rotating rod 13, the rotating wheel 16, the limiting rod 17, and the spring 20, the display body 10 can be adjusted to multiple angles. The precise engagement of the limiting rod 17 with the limiting hole 19, combined with the stable support of the spring 20 by the baffle 18, effectively prevents the display body 10 from shifting angles during use, ensuring stability.

[0028] In a preferred embodiment, please refer to Figure 2 Limiting plates 21 are fixed on both sides of the baffle 18, and limiting grooves 22 are opened inside the frame 14 on both sides of the baffle 18, and the limiting plates 21 and the limiting grooves 22 are compatible.

[0029] In this embodiment, when the baffle 18 moves inside the frame 14, since limiting plates 21 are fixedly installed on both sides of the baffle 18, and limiting grooves 22 that are perfectly matched in size and shape to the limiting plates 21 are provided inside the frame 14 corresponding to the two sides of the baffle 18, the limiting plates 21 will synchronously embed into the limiting grooves 22 as the baffle 18 moves, and slide along the extension direction of the limiting grooves 22. During this process, the limiting grooves 22 will strictly constrain the movement trajectory of the limiting plates 21, thereby indirectly limiting the movement range of the baffle 18 through the limiting plates 21, ensuring that the baffle 18 always moves within a preset path inside the frame 14, and avoiding any deviation.

[0030] Secondly, please refer to it again. Figure 2 The frame 14 has an annular groove 23 inside, and the annular groove 23 is located at the upper end of the limiting groove 22.

[0031] In this embodiment, when the baffle 18 moves inside the frame 14, the limiting plates 21 fixed on both sides of the baffle 18 will be synchronously embedded into the limiting groove 22 as the baffle 18 moves, and slide smoothly along the extension direction of the limiting groove 22. When the limiting plate 21 moves upward with the baffle 18 to the upper end of the limiting groove 22 and enters the annular groove 23, the operator can rotate the limiting rod 17. When the limiting rod 17 rotates, it will drive the limiting plate 21 to rotate synchronously. Since the inner wall shape of the annular groove 23 is adapted to the rotating limiting plate 21, the rotating limiting plate 21 can be stably locked inside the annular groove 23. Thus, through the locking cooperation between the limiting plate 21 and the annular groove 23, the baffle 18 is fixed in the current position. At this time, the tilt angle of the display screen body 10 can be adjusted by rotating the fixing block 12 and the first rotating rod 13.

[0032] Secondly, please refer to the following as well. Figure 2 The upper end of the limiting rod 17 is fixed with a first knob 24, and the outer side of the first knob 24 is provided with anti-slip texture, which is made of rubber.

[0033] In this embodiment, the rubber anti-slip texture on the outer side of the first knob 24 can increase the friction between the hand and the limit rod 17, preventing slippage during rotation, and allowing the operator to apply force more stably.

[0034] To further understand and explain, Figure 2 and Figure 3 For example, the rotating mechanism 30 includes a rotating plate 31, a second rotating rod 32, a second knob 33, and a first positioning rod 34. The rotating plate 31 is rotatably connected to the inside of the frame 14. The second rotating rod 32 is fixed to the lower end of the rotating plate 31, and the lower end of the second rotating rod 32 extends to the lower end of the frame 14. The second knob 33 is threaded to the lower end of the frame 14. The first positioning rod 34 is fixed to the upper end of the second knob 33. The lower end of the rotating plate 31 is provided with a plurality of first positioning holes 35, which are arranged in a ring, and the first positioning rod 34 and the first positioning holes 35 are adapted to each other.

[0035] In this embodiment, when the angle of the rotating plate 31 needs to be adjusted, the operator can first rotate the second knob 33. Since the second knob 33 is threadedly connected to the frame 14, during rotation, the second knob 33 will drive the first positioning rod 34 downwards, causing the first positioning rod 34 to disengage from the first positioning hole 35 at the lower end of the rotating plate 31. Then, by rotating the second rotating rod 32 (which extends to the lower end of the frame 14 for easy force application), the rotating plate 31 will rotate around its own axis inside the frame 14 until it reaches the preset angle. Finally, by rotating the second knob 33 in the opposite direction, the first positioning rod 34 will move upwards, embedding itself into the first positioning hole 35 at the corresponding angle of the rotating plate 31. Through the matching engagement between the first positioning rod 34 and the first positioning hole 35, the rotating plate 31 is fixed at the current angle. Simultaneously, the original workflow continues normally. It should be noted that the diameter of the first positioning rod 34 is smaller than the diameter of the thread on the second knob 33.

[0036] In a preferred embodiment, please refer to Figure 3 The upper end of the connecting plate 11 is provided with a plurality of second positioning holes 36, which are arranged vertically. The internal thread of the fixing block 12 is connected to a third knob 37, and the lower end of the third knob 37 is fixed with a second positioning rod 38, which is compatible with the second positioning holes 36.

[0037] In this embodiment, when it is necessary to adjust the relative position between the connecting plate 11 and the fixing block 12, first rotate the third knob 37 to move the second positioning rod 38 upwards via threaded transmission, disengaging it from the currently inserted second positioning hole 36. At this time, the connecting plate 11 can move vertically. After the connecting plate 11 moves to the target position, rotate the third knob 37 in the opposite direction to move the second positioning rod 38 downwards, inserting it into the corresponding second positioning hole 36, thereby completing the position fixation of the connecting plate 11 and the fixing block 12. The vertical arrangement of multiple second positioning holes 36 provides the connecting plate 11 with multiple adjustment options, which can meet the precise adjustment needs of the connecting plate 11 position in different scenarios and avoid the limitations of a single fixed position.

[0038] Secondly, please refer to it again. Figure 4 Both sides of the connecting plate 11 are fixed with sliding grooves 39, and the inside of the fixing block 12 and both sides of the connecting plate 11 are provided with sliding plates 40, and the sliding grooves 39 and the sliding plates 40 are compatible.

[0039] In this embodiment, when the second positioning rod 38 is disengaged from the second positioning hole 36 by rotating the third knob 37 to adjust the horizontal position of the connecting plate 11, the sliding grooves 39 on both sides of the connecting plate 11 will slide synchronously along the sliding plate 40 inside the fixing block 12. The sliding plate 40 provides a precise guide path for the sliding grooves 39, preventing the connecting plate 11 from shifting left or right during movement.

[0040] The working principle of this utility model is as follows:

[0041] When adjusting the tilt angle of the display screen body 10, the limiting rod 17 with the first knob 24 can be pulled upwards, causing the baffle 18 and the limiting plate 21 to move upwards along the limiting groove 22. After the limiting plate 21 enters the annular groove 23, the limiting rod 17 is rotated to lock the limiting plate 21 in place. Then, the display screen body 10 is rotated to drive the connecting plate 11, the fixing block 12, the first rotating rod 13, and the rotating wheel 16 to rotate synchronously. After adjusting to the target angle, the limiting rod 17 is rotated in the opposite direction to return the limiting plate 21 to the limiting groove 22. Under the elastic force of the spring 20, the baffle 18 drives the limiting rod 17 to move downwards and lock into the limiting hole 19 of the rotating wheel 16 to complete the fixation. When adjusting the horizontal rotation angle, the second knob 33 is rotated to drive the first fixed... Positioning rod 34 moves down and disengages from the first positioning hole 35 of rotating plate 31. Rotating the second rotating rod 32 drives rotating plate 31, frame 14, and display screen body 10 to rotate. After reaching the position, rotating the second knob 33 in the opposite direction causes the first positioning rod 34 to be inserted into the first positioning hole 35 and fixed. When adjusting the position between display screen body 10 and fixing block 12, rotating the third knob 37 drives the second positioning rod 38 to move up and disengage from the second positioning hole 36 of connecting plate 11. Connecting plate 11 moves smoothly along sliding plate 40 of fixing block 12 through sliding grooves 39 on both sides. After reaching the position, rotating the third knob 37 in the opposite direction causes the second positioning rod 38 to be inserted into the second positioning hole 36 and fixed. All structures work together to achieve multi-dimensional adjustment and stable use of display screen.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A highly reliable narrow-bezel Mini-COB display screen, comprising a display screen body (10), characterized in that: One end of the display screen body (10) is fixed with a connecting plate (11). A fixing block (12) is sleeved on the outside of the connecting plate (11). A first rotating rod (13) is fixed inside the fixing block (12). A frame (14) is rotatably connected to the outside of the first rotating rod (13). A first cavity (15) is opened on both sides inside the frame (14). Both ends of the first rotating rod (13) extend into the inside of the first cavity (15), and both ends of the outside of the first rotating rod (13) are fixed with rotating wheels (16). Two rotating wheels (16) are located inside two first cavities (15). Limiting rods (17) are slidably connected to both sides of the first cavity (15). A baffle (18) is fixed to the outside of the limiting rod (17). Multiple limiting holes (19) are opened on the outside of the rotating wheel (16), and the multiple limiting holes (19) are arranged in a ring. The lower end of the limiting rod (17) is adapted to the limiting hole (19). A spring (20) is fixed to the upper end of the baffle (18) and outside the limiting rod (17). The system also includes: Rotating mechanism (30) is mounted on the lower end of frame (14).

2. The high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: Limiting plates (21) are fixed on both sides of the baffle (18), and limiting grooves (22) are opened inside the frame (14) and on both sides of the baffle (18), and the limiting plates (21) and the limiting grooves (22) are compatible.

3. The high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: The frame (14) has an annular groove (23) inside, and the annular groove (23) is located at the upper end of the limiting groove (22).

4. A high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: The upper end of the limiting rod (17) is fixed with a first knob (24), and the outer side of the first knob (24) is provided with anti-slip texture, the material of the anti-slip texture is rubber.

5. A high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: The rotating mechanism (30) includes a rotating plate (31), a second rotating rod (32), a second knob (33), and a first positioning rod (34). The rotating plate (31) is rotatably connected to the inside of the frame (14). The second rotating rod (32) is fixed to the lower end of the rotating plate (31), and the lower end of the second rotating rod (32) extends to the lower end of the frame (14). The second knob (33) is threaded to the lower end of the frame (14). The first positioning rod (34) is fixed to the upper end of the second knob (33). The lower end of the rotating plate (31) is provided with a plurality of first positioning holes (35). The plurality of first positioning holes (35) are arranged in a ring, and the first positioning rod (34) and the first positioning holes (35) are compatible.

6. A high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: The upper end of the connecting plate (11) is provided with a plurality of second positioning holes (36), which are arranged vertically. The internal thread of the fixing block (12) is connected to a third knob (37), and the lower end of the third knob (37) is fixed with a second positioning rod (38), and the second positioning rod (38) is compatible with the second positioning hole (36).

7. A high-reliability narrow-bezel Mini-COB display screen according to claim 1, characterized in that: Both sides of the connecting plate (11) are fixed with sliding grooves (39), and the inside of the fixing block (12) and both sides of the connecting plate (11) are provided with sliding plates (40), and the sliding grooves (39) and the sliding plates (40) are compatible.