Anti-piracy LED lamp panel module

Abstract

The utility model discloses an anti -pirated LED lamp board module, including circuit board, drive chip and protection angle, drive chip below is provided with hidden pin, and hidden pin is connected with circuit board electricity, and the protection angle includes the support fixedly connected in the top of circuit board and the cover plate fixedly connected in the top of support, and the bottom surface of cover plate is pasted on the upper surface of drive chip. In this technical scheme, the drive chip adopts the novel packaging form, and the chip pin is hidden below the chip and does not stretch out to the outside, avoiding the direct connection of the external equipment and the chip pin, and at the same time, the top of the drive chip is pressed by the specially designed protection angle, so that the chip is difficult to be lifted, the behavior of pirating the film by connecting the chip can be effectively prevented, and the safety can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cinema operating equipment technology, and in particular to an anti-piracy LED light panel module. Background Technology

[0002] Currently, using LED large screens as movie projection equipment has become a technological trend. Depending on the size of the theater, an LED large screen consists of an array of LED cabinets to meet actual viewing needs. The LED cabinets are assembled from LED modules, with the LED light panel module being the core component. To prevent film piracy, the DCI organization has implemented a series of security designs for film projection equipment; therefore, the entire LED system must meet DCI security requirements, namely, preventing the theft of the played video information.

[0003] Existing technologies employ various anti-piracy measures; however, the inventors have discovered a vulnerability: in LED light board modules, chips commonly use surface-mount packaging, with chip pins extending outwards and solder pads exposed. If a piracy operator directly connects their recording device to the corresponding chip's pins (specifically, the driver chip used for data transmission), they may be able to read the chip's content and thus record the video. Therefore, eliminating this vulnerability, preventing external devices from connecting chip pins, and achieving a more robust anti-piracy effect is a problem that needs to be solved. Utility Model Content

[0004] This utility model provides an anti-piracy LED light board module to prevent the chip pins in the LED light board module from being connected to external devices, thereby preventing the film from being pirated.

[0005] To achieve the above objectives, this utility model provides an anti-piracy LED light board module, including a circuit board, a driver chip, and a protective corner; a hidden pin is provided below the driver chip, and the hidden pin is electrically connected to the circuit board; the protective corner includes a support fixedly connected to the top of the circuit board and a cover plate fixedly connected to the top of the support, and the bottom surface of the cover plate is attached to the upper surface of the driver chip.

[0006] Furthermore, the protective corner covers the outside of one vertex of the driver chip.

[0007] Furthermore, the support includes a first support plate and a second support plate fixedly connected together, with the first support plate and the second support plate forming a right angle, and the cover plate located inside the right angle.

[0008] Furthermore, solder pads are fixedly connected to the bottom surface of the support.

[0009] Furthermore, the cover plate can be square, triangular, or fan-shaped.

[0010] Furthermore, each driver chip is configured with two protection angles, and the two protection angles are distributed along the diagonal of the driver chip.

[0011] Furthermore, each driver chip is equipped with four protective corners.

[0012] Furthermore, the four protective corners belonging to the same driver chip are connected into one unit by a crossbeam.

[0013] The above technical solution has the following beneficial effects:

[0014] In this technical solution, the driver chip no longer uses the existing surface-mount packaging form, but instead adopts a new packaging form, so that the chip pins are hidden under the chip and do not protrude outwards. This prevents external recording devices from directly connecting to the chip pins and reading the stored content. At the same time, the uniquely designed protective corner presses down on the top of the driver chip, making it difficult to pry up the chip and complete the connection of the chip pins even if a screwdriver or other tools are inserted into the gap between the chip and the circuit board. Therefore, this solution can effectively prevent video piracy and significantly improve security. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of an anti-piracy LED light board module according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the protective angle in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram showing that all four corners are protected in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the integrated protective corner in an embodiment of this utility model;

[0020] Reference numerals: 10, Circuit board; 20, Driver chip; 30, Protective corner; 31, Cover plate; 32, First support board; 33, Second support board; 34, Solder pad; 35, Crossbeam. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 As shown, this utility model embodiment provides an anti-piracy LED light board module, including a circuit board 10, a driver chip 20, and a protective corner 30; the driver chip 20 has a hidden pin below it, which is electrically connected to the circuit board 10; the protective corner 30 includes a support fixedly connected to the top of the circuit board 10, and a cover plate 31 fixedly connected to the top of the support, and the bottom surface of the cover plate 31 is attached to the upper surface of the driver chip 20.

[0023] To address the aforementioned issues, this technical solution replaces the existing surface-mount packaging of the driver chip 20 with a novel packaging design. This design hides the chip pins directly beneath the driver chip 20, preventing them from protruding outwards. This avoids pin exposure, preventing external recording devices from directly connecting to the chip pins and obtaining data signals. However, if a tool is forcibly inserted into the tiny gap between the driver chip 20 and the circuit board 10 and pried upwards, the connection may loosen, creating a larger gap or even disassembling the driver chip 20, posing a risk of piracy. Therefore, in addition to the improved packaging design, this technical solution incorporates a unique protective device: a protective corner 30. This protective corner 30 is connected to the circuit board 10 via a support and positioned to the side of the driver chip 20. Its top cover 31 extends horizontally above the driver chip 20, creating vertical pressure and making it difficult to pry up or remove. This dual protection of hidden pins and physical pressure effectively prevents film piracy.

[0024] Furthermore, in the design, the protective corner 30 is not randomly arranged around the perimeter of the driver chip 20, but is preferably set at the vertex (the intersection of the three edges) on the upper surface of the driver chip 20, forming a surrounding fixation of the vertex of the driver chip 20 through an enveloping design. To avoid adverse effects on the LED light board module, the support and cover plate 31 are made of plastic.

[0025] Furthermore, such as Figure 2As shown, the specific form of the support is as follows: the support includes a first support plate 32 and a second support plate 33 fixedly connected together. The first support plate 32 and the second support plate 33 form a right angle. The cover plate 31 is located inside the right angle. That is, the support forms an L-shaped support structure. The right angle inside the L-shape is adapted to the shape of the vertex of the driver chip 20. That is, the first support plate 32 and the second support plate 33 can respectively fit against one side of the driver chip 20. This design has the following advantages: 1) It allows the cover plate 31 to accurately cover the driver chip 20. 1) The area above the vertex; 2) The right-angle structure formed by the first support plate 32 and the second support plate 33 has stronger resistance to deformation than a single flat plate, and can better withstand the external force when prying, avoiding the failure of protection due to support breakage or deformation; 3) The drive chip 20 is usually rectangular, and its four corners are also the places with the largest bottom gaps and the easiest to apply prying force. Therefore, when the two sides of the corners are blocked by the first support plate 32 and the second support plate 33 respectively, the prying tool cannot directly penetrate into the gap at the corner, thus providing more effective protection.

[0026] Furthermore, to facilitate connection and conform to conventional circuit board manufacturing processes, such as Figure 2 As shown, pads 34 can be provided on the bottom surface of the support (the bottom surface of the first support plate 32 and the bottom surface of the second support plate 33) (for example, the pads 34 can be placed on the bottom surface of the support by means of bonding). In this case, the pads 34 serve as a connection medium, allowing the support to be fixed by soldering between the pads 34 and the circuit board 10, forming a more robust connection.

[0027] Furthermore, the cover plate 31 is square (e.g., Figure 1 (as shown), or triangle (such as) Figure 4 The shapes can be shown (e.g., as shown) or fan-shaped, depending on the specific needs of the application.

[0028] Furthermore, although a single driver chip 20 with a protective angle 30 can achieve a suppressive effect, its protective effect is poor and the force is not evenly distributed. Therefore, an improved configuration scheme is as follows: Figure 1 As shown, each driver chip 20 is equipped with two protective angles 30, which are distributed along the diagonal of the driver chip 20. This allows for the application of pressure from the two diagonal vertices of the driver chip 20, ensuring uniform force distribution and avoiding force concentration or blind spots caused by a single protective angle 30. Compared to designs with multiple protective angles 30, this solution provides basic protection while reducing the number of components.

[0029] Furthermore, a more preferred configuration is, such as Figure 3As shown, each driver chip 20 is configured with four protective corners 30, that is, all four corners of the driver chip 20 are protected by protective corners 30. Compared with the previous method, the protection effect of this method is obviously better, and the protection strength is far superior to the aforementioned single-corner protection or double-corner protection. Of course, the number of components will also increase, leading to an increase in cost.

[0030] Furthermore, such as Figure 4 As shown, the four protective corners 30 belonging to the same driver chip 20 are connected into a whole by a crossbeam 35. That is, the crossbeam 35 connects the four separate protective corners 30 in series, forming a frame-like integrated protective structure around the driver chip 20, rather than four independent protective components. This design has outstanding advantages: 1) The four protective corners 30 are connected into an inseparable whole, preventing individual protective corners 30 from being pried or damaged separately, and the protection strength is geometrically improved, minimizing the possibility of unauthorized personnel damaging the protective structure; 2) Simplified installation and positioning: The integrated design allows the four protective corners 30 to be installed synchronously and precisely positioned, avoiding positional deviations caused by individual installations, improving assembly efficiency and structural accuracy, and facilitating later maintenance and repair.

[0031] It should be noted that in practical applications, each driver chip 20 should be protected as much as possible. If, in some models of light boards, the spacing between multiple driver chips 20 is small and the size of the protection angle 30 is large, protection angle 30 may not be set for each driver chip 20 to avoid conflict. For example, for multiple driver chips 20 in the same row, protection can be set every other one. In this case, for the driver chip 20 that is not protected, its already narrow side gap is occupied by the protection angle 30 installed on the adjacent driver chip 20, so the space is even smaller, making it impossible for prying tools to enter.

[0032] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0033] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0034] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An anti-piracy LED light board module, characterized in that, It includes a circuit board (10), a driver chip (20), and a protective corner (30); the driver chip (20) has a hidden pin below it, and the hidden pin is electrically connected to the circuit board (10); the protective corner (30) includes a support fixedly connected to the top of the circuit board (10) and a cover plate (31) fixedly connected to the top of the support, and the bottom surface of the cover plate (31) is attached to the upper surface of the driver chip (20).

2. The anti-piracy LED light board module as described in claim 1, characterized in that, The protective angle (30) covers the outside of one vertex of the driver chip (20).

3. The anti-piracy LED light board module as described in claim 2, characterized in that, The support includes a first support plate (32) and a second support plate (33) fixedly connected together, with the first support plate (32) and the second support plate (33) forming a right angle, and the cover plate (31) located inside the right angle.

4. The anti-piracy LED light board module as described in claim 1, characterized in that, A solder pad (34) is also fixedly connected to the bottom surface of the support.

5. The anti-piracy LED light board module as described in claim 1, characterized in that, The cover plate (31) is square, triangular, or fan-shaped.

6. The anti-piracy LED light board module as described in claim 1, characterized in that, Each of the driving chips (20) is configured with two protection angles (30), and the two protection angles (30) are distributed along the diagonal of the driving chip (20).

7. The anti-piracy LED light board module as described in claim 1, characterized in that, Each of the driver chips (20) is configured with four of the protection corners (30).

8. The anti-piracy LED light board module as described in claim 7, characterized in that, The four protective corners (30) belonging to the same driving chip (20) are connected as one unit by a crossbeam (35).

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