High-air-tightness display screen module of full-flip structure LED and manufacturing process thereof

Abstract

The application relates to the field of display screen modules, and discloses a high-air-tightness display screen module of a full-flip structure LED and a manufacturing process thereof, which comprises a circuit board, fixed power connection assemblies are uniformly arranged on the circuit board, a display screen assembly is arranged above the fixed power connection assemblies, the display screen assembly comprises LED light emitting chips, a plurality of LED light emitting chips are combined to form a display screen, a first electrical box is fixedly arranged at the bottom end of the LED light emitting chip, two insertion electrodes are arranged at the bottom end of the first electrical box, a pushing control member is arranged on the first electrical box, the fixed power connection assembly comprises a second electrical box which is uniformly arranged on the circuit board, two electrode grooves are symmetrically arranged on the second electrical box, and the two electrode grooves correspond to the two insertion electrodes. The display screen assembly adopts a full-flip mounting mode, the two insertion electrodes are respectively inserted into the two electrode grooves, welding is not needed, and direct mounting is adopted, so that the mounting efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of display module, specifically a high-airtightness display module of fully flip-chip LED and its manufacturing process. Background Technology

[0002] With the rapid iteration of LED display technology, display modules have been widely used in various fields such as indoor and outdoor advertising, smart terminals, industrial displays, and public facilities. Among them, the upright LED chip combined with gold wire bonding technology, as a traditional core technology in the LED display field, has long occupied the mainstream market of conventional LED display modules due to its advantages such as mature process, low manufacturing cost, and low mass production difficulty. It has become the most widely used interconnection and packaging solution in the industry. The upright LED chip is the core component of traditional LED packaging. Its structural feature is that the light-emitting surface is arranged upwards, and the chip surface integrates positive and negative terminals. Each electrode protrudes from the chip surface to achieve electrical connection with external circuitry. Gold wire bonding is the core technology for interconnecting the LED chip with the substrate. Its core principle utilizes the excellent conductivity and ductility of gold wire (usually a gold-silver alloy) to achieve a tight bond and conduction between one end of the gold wire and the protruding electrode of the LED chip through ultrasonic hot pressing. The other end of the gold wire is then connected to a corresponding pad on the PCB substrate, thus completing the current transmission and signal conduction between the chip and the driving circuit, establishing a complete electrical path. However, the following drawbacks still exist: When assembling a chip, wire bonding is required. The exposed leads and electrodes are more susceptible to the effects of ambient temperature, resulting in a shorter lifespan. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a high airtightness display module of fully flip-chip LED and its manufacturing process, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high airtightness display module of a fully flip-chip LED structure, comprising a circuit board, wherein fixed power connection components are uniformly mounted on the circuit board, and a display module is disposed above the fixed power connection components; The display assembly includes LED light-emitting chips, and multiple LED light-emitting chips are combined to form a display. A first electrical box is fixedly installed at the bottom of the LED light-emitting chips. Two insertion electrodes are installed at the bottom of the first electrical box, and a push control component is provided on the first electrical box. The fixed electrical connection assembly includes a second electrical box evenly mounted on a circuit board. The second electrical box has two symmetrically opened electrode slots, which correspond to two inserted electrodes. The second electrical box is provided with a rotating snap-fit ​​component and a negative pressure fixing component. The rotating snap-fit ​​component, the negative pressure fixing component and the push control component cooperate to fix the second electrical box to the first electrical box. The bottom end face of the first electrical box and the top end face of the second electrical box are both provided with sealing gaskets.

[0005] Preferably, the first electrical box is arranged in an inverted stepped shape, the second electrical box is arranged in a stepped shape, the two inserted electrodes are positive contacts and negative contacts respectively, the two electrode slots are positive electrodes and negative electrodes respectively, the circuit board is provided with positive wires and negative wires, the positive electrodes on the multiple second electrical boxes are connected in series with the positive wires, and the negative electrodes on the multiple second electrical boxes are connected in series with the negative wires.

[0006] Preferably, the push control component includes longitudinal push plates symmetrically installed on both sides of the first electrical box. The longitudinal push plates are provided with snap-fit ​​grooves, and two snap-fit ​​grooves extend to the side of the two longitudinal push plates that are close to each other. A transverse pressure plate is fixedly installed on one side of the longitudinal push plates, and the transverse pressure plate is located above the snap-fit ​​grooves.

[0007] Preferably, the rotating snap-fit ​​component includes side slots symmetrically opened on both sides of the second electrical box, a positioning slot is opened on one side of the side slot, and two guide slots are symmetrically opened inside the second electrical box. The two guide slots correspond one-to-one with the two side slots, and a rod slot is opened between the guide slots and the corresponding side slots.

[0008] Preferably, a guide piston block is movably installed inside the guide movable groove. A connecting shaft is fixedly installed on the side of the guide piston block near the side groove. One end of the connecting shaft passes through the rod groove to the outside of the second electrical box. A rotation positioning module is connected to one end of the connecting shaft. A return spring is fixedly installed on the side of the guide piston block away from the connecting shaft. One end of the return spring is fixedly connected to the inner wall of the end of the guide movable groove.

[0009] Preferably, the rotation positioning module includes a rotating circular block rotatably mounted on the end of the connecting shaft. Two rotating circular blocks are symmetrically arranged on the side of the two side slots that are far apart from each other. A positioning plate is fixedly installed on one side of the rotating circular block. The positioning plate corresponds to the positioning slot. A rotating slot is opened inside the rotating circular block. A torsion spring is installed between the outer wall of the connecting shaft and the inner wall of the rotating slot.

[0010] Preferably, the negative pressure fixing component includes a negative pressure cavity opened inside the second electrical box, a piston plate is movably installed inside the negative pressure cavity, two connecting grooves are symmetrically opened on one side of the negative pressure cavity, the connecting grooves are located above the piston plate, and the two connecting grooves are respectively connected to two guide movable grooves, and the ends of the two connecting grooves are respectively located at one end of the two guide movable grooves that are close to each other.

[0011] Preferably, a support spring is fixedly installed at the bottom end of the piston plate, and the bottom end of the support spring is fixedly connected to the inner bottom wall of the negative pressure chamber. Two bottom plates are symmetrically installed at the bottom end of the piston plate. Slide grooves are symmetrically opened on both sides of the bottom end of the negative pressure chamber. A sliding plate is installed on the side of the two bottom plates that are far apart from each other. The sliding plate is slidably connected to the slide groove. A pressure rod is fixedly installed on the top of the end of the sliding plate outside the second electrical box. The pressure rod is located below the transverse pressure plate.

[0012] Preferably, the bottom of the second electrical box is provided with a mounting groove, and the top of the mounting groove is provided with two symmetrical air inlet grooves. The two air inlet grooves respectively extend into the interior of two guide movable grooves. A mounting block is installed inside the mounting groove, and two stoppers are installed on the top of the mounting block. The stoppers are installed into the interior of the two air inlet grooves.

[0013] This invention also provides a manufacturing process for a high-airtightness display module of a fully flip-chip LED structure, comprising the following steps: S1. Installation: Insert the two insertion electrodes of the LED light-emitting chip into the corresponding electrode slots on the second electrical box to complete the installation; S2, Snap-fit: When the LED chip moves downward, the longitudinal push plate exerts pressure on the positioning plate, pushing the rotating block to rotate, and then the rotating block rotates back, so that the positioning plate snaps into the longitudinal push plate; S3. Fixing: While the longitudinal push plate moves downward, the transverse pressure plate pushes the piston plate downward, creating negative pressure in the guide groove. After the positioning plate is inserted into the longitudinal push plate, under the action of negative pressure, the positioning plate enters the positioning groove, preventing the rotating block from rotating, thus achieving limiting and fixing.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) In this invention, the display panel assembly is installed in a fully flip-flop manner, with the two insertion electrodes inserted into the two electrode slots respectively. No welding is required for direct installation, which improves the installation efficiency. The first electrical box and the second electrical box form a seal, so that the electrodes are not directly exposed to the outside, which extends the service life of the equipment. At the same time, the first electrical box is set in an inverted stepped shape and the second electrical box is set in a stepped shape to ensure stable installation and avoid reverse connection. (2) In this invention, when the first electrical box is installed above the second electrical box, the longitudinal push plate generates a pushing force on the positioning plate, which pushes the rotating block to rotate until the rotating block corresponds to the position of the snap-fit ​​slot. Then the rotating block rotates back and inserts into the snap-fit ​​slot, and then the rotating block is fixed so that the display screen assembly cannot be pulled out upwards. This facilitates the fixing and power connection of the display screen assembly and the fixed power connection assembly, and improves the installation efficiency. (3) In this invention, while the longitudinal push plate moves downward, the transverse pressure plate pushes the pressure rod downward, which in turn pushes the piston plate downward, so that negative pressure is generated in the guide movable groove. Under the action of negative pressure, the rotating block enters the side groove and the position of the rotating block is fixed, thereby realizing the fixed installation of the display screen assembly and the fixed power connection assembly, which is convenient to use. (4) In this invention, a positioning plate is provided on one side of the rotating block. When the rotating block is located outside the side groove, the positioning plate is subjected to force to make the rotating block rotate, which facilitates the positioning plate to be inserted into the snap-fit ​​groove. During this process, the positioning plate and the positioning groove are not in the same position, so that the rotating block will not immediately enter the side groove under the action of negative pressure. After the snap-fit ​​is achieved, the positioning plate enters the positioning groove under the action of negative pressure to achieve fixation, thereby achieving the effect of making the display screen assembly unable to be pulled out, which is convenient to use. (5) In this invention, a stopper is inserted into the air inlet groove at the bottom of the guide movable groove, which can seal the guide movable groove. When it is necessary to disassemble and replace, the stopper is pulled out, so that the air pressure in the guide movable groove returns to normal pressure, thereby allowing the rotating block to move out of the side groove, so that the rotating block can rotate, and thus the display screen assembly can be pulled out upwards, which is convenient for disassembly and replacement. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the high-airtightness display module structure of the fully flip-chip LED of the present invention; Figure 2 This is a schematic diagram of the display screen assembly and fixed power connection assembly of the present invention; Figure 3 This is a schematic diagram of the display screen assembly structure of the present invention; Figure 4 This is a schematic diagram of the fixed power connection component structure of the present invention; Figure 5 This is a schematic diagram of the rotating snap-fit ​​structure of the present invention; Figure 6 This is a schematic diagram of the guide groove structure of the present invention; Figure 7 This is a schematic diagram of the rotation positioning module structure of the present invention; Figure 8 This is a schematic diagram of the negative pressure fixing component structure of the present invention; Figure 9 For the present invention Figure 6 Enlarged view in the middle; In the diagram: 1. Circuit board; 2. Display screen assembly; 201. LED light-emitting chip; 202. First electrical box; 203. Insertion electrode; 204. Push control component; 2041. Vertical push plate; 2042. Snap-fit ​​groove; 2043. Horizontal pressure plate; 3. Fixed power connection assembly; 301. Second electrical box; 302. Electrode groove; 303. Rotating snap-fit ​​component; 3031. Guide groove; 3032. Rod groove; 3033. Side groove; 3034. Positioning groove; 3035. Guide piston block; 3036. Connecting shaft; 3037. Rotating fixed... Positioning module; 30371, rotating block; 30372, positioning plate; 30373, rotating groove; 30374, torsion spring; 3038, return spring; 304, negative pressure fixing component; 3041, negative pressure chamber; 3042, piston plate; 3043, connecting groove; 3044, support spring; 3045, base plate; 3046, sliding groove; 3047, sliding plate; 3048, pressure rod; 305, air inlet groove; 306, mounting groove; 307, mounting block; 308, stop. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example 1, by Figures 1-2 The present invention relates to a high airtightness display module of a fully flip-chip LED structure, comprising a circuit board 1, on which fixed power connection components 3 are uniformly mounted, and a display module 2 is disposed above the fixed power connection components 3.

[0019] Depend on Figure 3 As shown, the display assembly 2 includes LED light-emitting chips 201, and multiple LED light-emitting chips 201 are combined to form a display screen. A first electrical box 202 is fixedly installed at the bottom of the LED light-emitting chip 201. Two insertion electrodes 203 are installed at the bottom of the first electrical box 202. A push control component 204 is provided on the first electrical box 202. The push control component 204 includes longitudinal push plates 2041 symmetrically installed on both sides of the first electrical box 202. The longitudinal push plates 2041 are provided with snap-fit ​​grooves 2042. The two snap-fit ​​grooves 2042 extend to the side of the two longitudinal push plates 2041 that are close to each other. A transverse pressure plate 2043 is fixedly installed on one side of the longitudinal push plates 2041. The transverse pressure plate 2043 is located above the snap-fit ​​grooves 2042.

[0020] Depend on Figure 4The fixed electrical connection assembly 3 includes a second electrical box 301 evenly mounted on the circuit board 1. The second electrical box 301 has two symmetrically formed electrode slots 302, which correspond to two inserted electrodes 203. The second electrical box 301 is provided with a rotating snap-fit ​​component 303 and a negative pressure fixing component 304. The rotating snap-fit ​​component 303, the negative pressure fixing component 304 cooperate with the push control component 204 to fix the second electrical box 301 to the first electrical box 202. The bottom end face of the first electrical box 202 and the top end face of the second electrical box 301 are both provided with sealing gaskets. Depend on Figures 5-6 The rotating latching component 303 includes side grooves 3033 symmetrically formed on both sides of the second electrical box 301. A positioning groove 3034 is formed on one side of each side groove 3033. Two guide grooves 3031 are symmetrically formed inside the second electrical box 301, each corresponding to one of the two side grooves 3033. A rod groove 3032 is formed between the guide groove 3031 and its corresponding side groove 3033. A guide is movably installed inside the guide groove 3031. A connecting shaft 3036 is fixedly installed on the side of the guide piston block 3035 near the side groove 3033. One end of the connecting shaft 3036 passes through the rod groove 3032 to the outside of the second electrical box 301. A rotation positioning module 3037 is connected to one end of the connecting shaft 3036. A return spring 3038 is fixedly installed on the side of the guide piston block 3035 away from the connecting shaft 3036. One end of the return spring 3038 is fixedly connected to the inner wall of the end of the guide movable groove 3031. Depend on Figure 7 The rotating positioning module 3037 includes a rotating block 30371 rotatably mounted on the end of the connecting shaft 3036. Two rotating blocks 30371 are symmetrically arranged on the opposite side of two side grooves 3033. A positioning plate 30372 is fixedly mounted on one side of the rotating block 30371, and the positioning plate 30372 corresponds to the positioning groove 3034. A rotating groove 30373 is formed inside the rotating block 30371. A torsion spring 3 is installed between the outer wall of the connecting shaft 3036 and the inner wall of the rotating groove 30373. 0374, when the first electrical box 202 is installed above the second electrical box 301, the longitudinal push plate 2041 exerts a pushing force on the positioning plate 30372, pushing the rotating block 30371 to rotate until the rotating block 30371 corresponds to the position of the snap-fit ​​slot 2042. Then the rotating block 30371 rotates back and inserts into the snap-fit ​​slot 2042, and then the rotating block 30371 is fixed so that the display screen assembly 2 cannot be pulled out upwards. This facilitates the fixed connection of the display screen assembly 2 and the fixed power connection assembly 3, improving installation efficiency.

[0021] Depend on Figure 8The negative pressure fixing component 304 includes a negative pressure cavity 3041 formed inside the second electrical box 301. A piston plate 3042 is movably installed inside the negative pressure cavity 3041. Two connecting grooves 3043 are symmetrically formed on one side of the negative pressure cavity 3041. The connecting grooves 3043 are located above the piston plate 3042, and the two connecting grooves 3043 are respectively connected to two guide movable grooves 3031. The ends of the two connecting grooves 3043 are respectively located close to one end of the two guide movable grooves 3031. As the longitudinal push plate 2041 moves downward, The transverse pressure plate 2043 pushes the pressure rod 3048 downward, which in turn pushes the piston plate 3042 downward, creating a negative pressure in the guide groove 3031. Under the action of the negative pressure, the rotating block 30371 enters the side groove 3033, fixing the position of the rotating block 30371, thereby achieving the fixed installation of the display screen assembly 2 and the fixed power connection assembly 3 for convenient use. A support spring 3044 is fixedly installed at the bottom end of the piston plate 3042, and the bottom end of the support spring 3044 is fixedly connected to the inner bottom wall of the negative pressure chamber 3041. Two base plates 3045 are symmetrically installed at the bottom end of the plug plate 3042. Slide grooves 3046 are symmetrically opened at the bottom ends of both sides of the negative pressure chamber 3041. Slide plates 3047 are installed on the sides of the two base plates 3045 that are far apart from each other. The slide plates 3047 are slidably connected to the slide grooves 3046. A pressure rod 3048 is fixedly installed on the top of one end of the slide plate 3047 outside the second electrical box 301. The pressure rod 3048 is located below the transverse pressure plate 2043. A positioning plate 30372 is provided on one side of the rotating block 30371. By rotating the rotating block 30371... When located outside the side groove 3033, the rotating block 30371 rotates due to the force exerted by the positioning plate 30372, which facilitates the positioning plate 30372 to engage with the locking groove 2042. During this process, the positioning plate 30372 and the positioning groove 3034 are not in corresponding positions, so the rotating block 30371 will not immediately enter the side groove 3033 under the action of negative pressure. After the engagement is achieved, the positioning plate 30372 enters the positioning groove 3034 under the action of negative pressure to achieve fixation, thereby achieving the effect of preventing the display assembly 2 from being pulled out, which is convenient for use.

[0022] The first electrical box 202 is arranged in an inverted stepped shape, and the second electrical box 301 is arranged in a stepped shape. The two insertion electrodes 203 are positive and negative contacts, respectively. The two electrode slots 302 are positive and negative electrodes, respectively. The circuit board 1 is provided with positive and negative wires. The positive electrodes on multiple second electrical boxes 301 are connected in series with the positive wires, and the negative electrodes on multiple second electrical boxes 301 are connected in series with the negative wires. The display screen assembly 2 adopts a fully inverted installation method, in which the two insertion electrodes 203 are inserted into the two electrode slots 302 respectively. It can be installed directly without soldering, which improves installation efficiency. The first electrical box 202 and the second electrical box 301 form a seal, so that the electrodes are not directly exposed, which extends the service life of the equipment. At the same time, the inverted stepped shape of the first electrical box 202 and the stepped shape of the second electrical box 301 ensure stable installation and avoid reverse connection.

[0023] Depend on Figure 9 As shown, the bottom of the second electrical box 301 is provided with a mounting groove 306, and the top of the mounting groove 306 is symmetrically provided with two air inlet grooves 305. The two air inlet grooves 305 respectively extend into the interior of two guide movable grooves 3031. A mounting block 307 is installed inside the mounting groove 306, and two stoppers 308 are installed on the top of the mounting block 307. The stoppers 308 are installed into the two air inlet grooves 305. The stoppers 308 are inserted into the air inlet grooves 305 at the bottom of the guide movable grooves 3031, which can seal the guide movable grooves 3031. When it is necessary to disassemble and replace, the stoppers 308 are pulled out, so that the air pressure in the guide movable grooves 3031 returns to normal pressure, thereby allowing the rotating block 30371 to move out from the side groove 3033, so that the rotating block 30371 can rotate, and thus the display screen assembly 2 can be pulled upward, which is convenient for disassembly and replacement.

[0024] Working principle: During installation, multiple fixed power connection components 3 are evenly arranged on the circuit board 1. At the same time, positive and negative wires are provided on the circuit board 1. The positive electrodes on multiple second electrical boxes 301 are connected in series with the positive wires, and the negative electrodes on multiple second electrical boxes 301 are connected in series with the negative wires. Then, the display assembly 2 is inverted and installed upside down, with the LED light-emitting chip 201 facing upwards. Then, the two insertion electrodes 203 at the bottom of the first electrical box 202 are respectively inserted into the two electrode slots 302 on the second electrical box 301. Since the first electrical box 202 is set in an inverted stepped shape and the second electrical box 301 is set in a stepped shape, it is convenient to install the display assembly 2 with the fixed power connection assembly 3. After the installation is completed, the multiple LED light-emitting chips 201 arranged in the array are in close contact to form a whole large display screen. During the installation of the LED chip 201, as the LED chip 201 moves downward, the longitudinal push plates 2041 on both sides of the LED chip 201 exert a downward pushing force on the positioning plates 30372 on the side walls of the rotating blocks 30371 on both sides, thereby pushing the rotating blocks 30371 to rotate downward. When the rotating blocks 30371 rotate to the point where the positioning plates 30372 correspond to the snap-fit ​​groove 2042, the positioning plates 30372 rotate under the elastic force of the torsion spring 30374, so that the positioning plates 30372 snap into the snap-fit ​​groove 2042, and the bottom wall of the positioning plates 30372 contacts the inner bottom wall of the snap-fit ​​groove 2042. Simultaneously, as the longitudinal push plate 2041 moves downward, it drives the transverse pressure plate 2043 to move downward. The transverse pressure plate 2043 is located above the pressure rod 3048, causing it to push the pressure rod 3048 downward, which in turn pushes the piston plate 3042 downward. This creates negative pressure in the space above the piston plate 3042 within the negative pressure chamber 3041. The negative pressure chamber 3041 is connected to two guide grooves 3031, causing the negative pressure to exert a force on the two guide piston blocks 3035, bringing them closer together. Meanwhile, the rotating block 30371 rotates... This causes the positioning plate 30372 to be in a position that does not correspond to the positioning groove 3034, preventing the two guide piston blocks 3035 from moving closer to each other. When the rotating block 30371 rotates the positioning plate 30372 to the position corresponding to the positioning groove 3034, under the action of negative pressure, the rotating block 30371 moves towards the inside of the side groove 3033. The rotating block 30371 is fixed by the engagement of the positioning plate 30372 and the positioning groove 3034, preventing the engagement groove 2042 from moving upward, thereby engaging and fixing the display assembly 2 and the fixed power connection assembly 3. When the display assembly 2 needs to be repaired and disassembled, the mounting block 307 is removed from the bottom of the circuit board 1, so that the guide groove 3031 is connected to the external environment, thereby eliminating the negative pressure at one end of the guide piston block 3035, so that the rotating block 30371 moves out of the side groove 3033 under the reset spring 3038, so that the display assembly 2 can be taken out upwards for easy disassembly and assembly.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-airtightness LED display module with a fully flip-chip structure, comprising a circuit board (1), characterized in that: The circuit board (1) is uniformly equipped with a fixed power connection component (3), and a display screen component (2) is provided above the fixed power connection component (3). The display assembly (2) includes an LED light-emitting chip (201), and multiple LED light-emitting chips (201) are combined to form a display screen. A first electrical box (202) is fixedly installed at the bottom of the LED light-emitting chip (201). Two insertion electrodes (203) are installed at the bottom of the first electrical box (202). A push control component (204) is provided on the first electrical box (202). The fixed electrical connection assembly (3) includes a second electrical box (301) evenly mounted on the circuit board (1). Two electrode slots (302) are symmetrically opened on the second electrical box (301). The two electrode slots (302) correspond to two insertion electrodes (203). The second electrical box (301) is provided with a rotating snap-fit ​​component (303) and a negative pressure fixing component (304). The rotating snap-fit ​​component (303), the negative pressure fixing component (304) cooperate with the push control component (204) to fix the second electrical box (301) and the first electrical box (202). The bottom end face of the first electrical box (202) and the top end face of the second electrical box (301) are both provided with sealing gaskets.

2. A high-airtightness LED display module with a fully flip-chip structure according to claim 1, characterized in that: The first electrical box (202) is arranged in an inverted stepped shape, and the second electrical box (301) is arranged in a stepped shape. The two insertion electrodes (203) are positive and negative contacts, respectively. The two electrode slots (302) are positive and negative electrodes, respectively. The circuit board (1) is provided with positive and negative wires. The positive electrodes on the multiple second electrical boxes (301) are connected in series with the positive wires, and the negative electrodes on the multiple second electrical boxes (301) are connected in series with the negative wires.

3. A high-airtightness LED display module with a fully flip-chip structure according to claim 1, characterized in that: The push control component (204) includes longitudinal push plates (2041) symmetrically installed on both sides of the first electrical box (202). The longitudinal push plates (2041) are provided with snap-fit ​​grooves (2042). Two snap-fit ​​grooves (2042) extend to the side of the two longitudinal push plates (2041) that are close to each other. A transverse pressure plate (2043) is fixedly installed on one side of the longitudinal push plates (2041). The transverse pressure plate (2043) is located above the snap-fit ​​grooves (2042).

4. A high-airtightness LED display module with a fully flip-chip structure according to claim 1, characterized in that: The rotating snap-fit ​​component (303) includes side slots (3033) symmetrically opened on both sides of the second electrical box (301). A positioning slot (3034) is opened on one side of the side slot (3033). Two guide slots (3031) are symmetrically opened inside the second electrical box (301). The two guide slots (3031) correspond one-to-one with the two side slots (3033). A rod slot (3032) is opened between the guide slot (3031) and the corresponding side slot (3033).

5. A high-airtightness LED display module with a fully flip-chip structure according to claim 4, characterized in that: A guide piston block (3035) is movably installed inside the guide movable groove (3031). A connecting shaft (3036) is fixedly installed on the side of the guide piston block (3035) near the side groove (3033). One end of the connecting shaft (3036) passes through the rod groove (3032) to the outside of the second electrical box (301). A rotation positioning module (3037) is connected to one end of the connecting shaft (3036). A return spring (3038) is fixedly installed on the side of the guide piston block (3035) away from the connecting shaft (3036). One end of the return spring (3038) is fixedly connected to the inner wall of the end of the guide movable groove (3031).

6. A high-airtightness LED display module according to claim 5, characterized in that: The rotation positioning module (3037) includes a rotating block (30371) rotatably mounted on the end of the connecting shaft (3036). Two rotating blocks (30371) are symmetrically arranged on the side of the two side grooves (3033) that are far apart from each other. A positioning plate (30372) is fixedly installed on one side of the rotating block (30371). The positioning plate (30372) corresponds to the positioning groove (3034). A rotating groove (30373) is opened inside the rotating block (30371). A torsion spring (30374) is installed between the outer wall of the connecting shaft (3036) and the inner wall of the rotating groove (30373).

7. A high-airtightness LED display module according to claim 1, characterized in that: The negative pressure fixing component (304) includes a negative pressure cavity (3041) opened inside the second electrical box (301). A piston plate (3042) is movably installed inside the negative pressure cavity (3041). Two connecting grooves (3043) are symmetrically opened on one side of the negative pressure cavity (3041). The connecting grooves (3043) are located above the piston plate (3042), and the two connecting grooves (3043) are respectively connected to two guide movable grooves (3031). The ends of the two connecting grooves (3043) are respectively located close to one end of the two guide movable grooves (3031).

8. A high-airtightness LED display module with a fully flip-chip structure according to claim 7, characterized in that: A support spring (3044) is fixedly installed at the bottom end of the piston plate (3042). The bottom end of the support spring (3044) is fixedly connected to the inner bottom wall of the negative pressure chamber (3041). Two bottom plates (3045) are symmetrically installed at the bottom end of the piston plate (3042). Slide grooves (3046) are symmetrically opened at the bottom ends of both sides of the negative pressure chamber (3041). Slide plates (3047) are installed on the side of the two bottom plates (3045) that are far apart from each other. The slide plates (3047) are slidably connected to the slide grooves (3046). A pressure rod (3048) is fixedly installed on the top of the end of the slide plate (3047) located outside the second electrical box (301). The pressure rod (3048) is located below the transverse pressure plate (2043).

9. A high-airtightness LED display module with a fully flip-chip structure according to claim 4, characterized in that: The second electrical box (301) has a mounting groove (306) at the bottom. Two air inlet grooves (305) are symmetrically opened at the top of the mounting groove (306). The two air inlet grooves (305) pass through the two guide grooves (3031) respectively. A mounting block (307) is installed inside the mounting groove (306). Two stoppers (308) are installed at the top of the mounting block (307). The stoppers (308) are installed inside the two air inlet grooves (305).

10. A manufacturing process for a high-airtightness display module of a fully flip-chip LED structure, used to manufacture the high-airtightness display module of a fully flip-chip LED structure as described in claim 6, characterized in that, Includes the following steps: S1. Installation: Insert the two insertion electrodes (203) of the LED light-emitting chip (201) into the two electrode slots (302) on the second electrical box (301) to complete the installation; S2, Snap-in: When the LED light-emitting chip (201) moves downward, the longitudinal push plate (2041) exerts pressure on the positioning plate (30372), pushing the rotating block (30371) to rotate, and then the rotating block (30371) rotates back, so that the positioning plate (30372) snaps into the longitudinal push plate (2041); S3. Fixing: While the longitudinal push plate (2041) moves downward, the transverse pressure plate (2043) pushes the piston plate (3042) downward, causing a negative pressure to be generated in the guide groove (3031). After the positioning plate (30372) is inserted into the longitudinal push plate (2041), under the action of negative pressure, the positioning plate (30372) enters the positioning groove (3034), making the rotating block (30371) unable to rotate, thereby achieving the limit fixation.

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