Light panel and display apparatus

Abstract

A light panel (100) and a display apparatus (900), relating to the technical field of light-emitting diode chip mass transfers. The light panel (100) comprises a base plate (110), a circuit board (120), a heat conduction assembly (130), a vibration plate (140), a vibration assembly (200), and a plurality of light-emitting diode chips (150); the vibration assembly (200) comprises an airflow circulation portion (210), a vibration portion (220), and a limiting member (230); the airflow circulation portion (210) is arranged on the heat conduction assembly (130); the vibration portion (220) is arranged on a side of the airflow circulation portion (210) facing away from the base plate (110); the limiting member (230) is arranged on the heat conduction assembly (130); one end of the vibration portion (220) is connected to the vibration plate (140), and the other end abuts against the limiting member (230); the heat conduction assembly (130) conducts heat generated during the operation of the circuit board (120) to the airflow circulation portion (210) of the vibration assembly (200); the airflow circulation portion (210) absorbs the heat and then generates an air pulse force, which impinges on the vibration portion (220) and causes the vibration portion (220) to vibrate, so as to drive the vibration plate (140) to vibrate, and thereby drive the light-emitting diode chips (150) to vibrate on the vibration plate (140). The light panel (100) achieves mass transfer mounting of light-emitting diode chips (150) by means of the internal structure of the light panel (100), and allows for light-emitting diode chips (150) to be mounted without the need for additional mass transfer equipment.

Description

Lamp panel and display device

[0001] The present application claims priority to the Chinese patent application No. CN2024112255132, filed on September 3, 2024, and entitled "Lamp panel and display device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of lamp bead mass transfer, in particular to a lamp panel and a display device. BACKGROUND

[0003] With the innovation and development of LED (light-emitting diode) technology, MiniLED (Mini Light Emitting Diode Display) display technology has become a new generation of display technology. The traditional LED structure is miniaturized and matrixed, so that the size of each LED chip is reduced to several tenths of the size of the traditional LED, and each LED pixel point is addressed and individually driven to emit light. Since the MiniLED chip display has the advantages of high resolution, high brightness, long service life, wide operating temperature range, strong anti-interference ability, fast response speed and low power consumption, MiniLED has important application value in high-resolution display, helmet display, enhanced display, high-speed visible light communication, micro projector, optical genetics and wearable electronics.

[0004] The production of MiniLED display products requires mass transfer of a large number of MiniLEDs to the corresponding substrate quickly. The traditional transfer technology is a "suction-discharge" process using a mechanical structure, that is, a suction head is used to suck up the MiniLED and then transfer it to the corresponding position on the substrate. Since this method uses single-chip suction and discharge, the speed is slow, the precision is low, and the cost is high, which cannot meet the requirements of ultra-high-definition and ultra-small pixel pitch display product production. In addition, it needs to use an additional mass transfer device to realize installation, which is very inconvenient. SUMMARY

[0005] The purpose of the present application is to provide a lamp panel and a display device, which can realize mass transfer and installation of lamp beads through the internal structure of the lamp panel without the need for additional mass transfer equipment to realize the installation of lamp beads.

[0006] The application discloses a lamp panel applied to a display panel, which comprises a bottom plate, a circuit board, a heat conduction assembly, a vibrating plate, a vibrating assembly and a plurality of lamp beads, the circuit board is arranged on the bottom plate; the heat conduction assembly is arranged on the bottom plate and surrounds the circuit board; the vibrating plate is arranged on the heat conduction assembly, and a plurality of through holes are arranged on the vibrating plate; the vibrating assembly comprises an air flow circulation part, a vibrating part and a limiting piece, the air flow circulation part is arranged on the heat conduction assembly, the vibrating part is arranged on the side of the air flow circulation part away from the bottom plate, the limiting piece is arranged on the heat conduction assembly, one end of the vibrating part is connected with the vibrating plate, and the other end is abutted with the limiting piece, and the limiting piece, the vibrating part and the heat conduction assembly enclose the air flow circulation part; pins are arranged on the lamp beads, and when the lamp beads are mounted on the vibrating plate, the pins pass through the through holes and are electrically connected with the circuit board; wherein the heat conduction assembly conducts heat generated by the circuit board during work to the air flow circulation part of the vibrating assembly, the air flow circulation part generates air flow pulse force after absorbing heat, the vibrating part is impacted to vibrate, the vibrating plate is driven to vibrate, and the lamp beads are driven to vibrate on the vibrating plate.

[0007] Optionally, the air flow circulation part comprises an air flow guide piece, a first heating cavity, a first cavity and a one-way valve, the air flow guide piece comprises an air inlet end close to the heat conduction assembly, an air outlet end close to the vibrating part, an air flow paddle and at least two air flow channels communicating the air inlet end and the air outlet end, the first heating cavity is arranged on the air inlet end of the air flow guide piece, the first cavity is arranged on the air outlet end of the air flow guide piece, the air flow paddle swings in the air flow guide piece to make the gas flow out of the two air flow channels into the first cavity alternately, and the one-way valve is connected with the first cavity and the first heating cavity, and the gas enters the first heating cavity from the first cavity through the one-way valve; wherein the air flow flows out of the air flow channel to impact on the vibrating part, so that the vibrating part vibrates to drive the vibrating plate to vibrate.

[0008] Optionally, the vibrating assembly further comprises a reset part, the reset part is arranged on the heat conduction assembly, the reset part comprises a fixing piece and an elastic piece, the fixing piece is arranged on the heat conduction assembly, one end of the elastic piece is connected with the fixing piece, and the other end is connected with the vibrating part; wherein when the vibrating part stops vibrating, the vibrating part moves towards the direction of the bottom plate under the elastic force of the elastic piece.

[0009] Optionally, the vibrating assembly further comprises an elastic blocking piece, one end of the elastic blocking piece is connected with the vibrating part, and the other end is connected with the heat conduction assembly; wherein when the vibrating part vibrates, the elastic blocking piece deforms along with the vibration of the vibrating part.

[0010] Optionally, the vibration part is provided with a positioning groove matched with the vibration plate; wherein the cross section of the positioning groove in the direction perpendicular to the bottom plate is C-shaped.

[0011] Optionally, the heat conduction assembly comprises a heat conduction outer frame arranged in the peripheral region and a heat conduction inner frame arranged in the middle region, a gap is arranged between the heat conduction outer frame and the heat conduction inner frame, and the circuit board is arranged in the gap; wherein the heat conduction rate of the heat conduction inner frame is greater than the heat conduction rate of the heat conduction outer frame.

[0012] Optionally, the lamp panel further comprises a blocking assembly and a second cavity, the blocking assembly is arranged above the bottom plate, the blocking assembly, the limiting piece, the bottom plate and the heat conduction assembly enclose to form the second cavity; wherein the heat conduction assembly transfers heat to the second cavity to lift the blocking assembly.

[0013] Optionally, the vibration plate is provided with a plurality of mounting positions, each mounting position is provided with a first positioning block, the lamp bead is provided with a second positioning block, and the first positioning block and the second positioning block are matched when the lamp bead is mounted on the mounting position; wherein the first positioning block and the second positioning block are magnetically attracted.

[0014] Optionally, the lamp panel further comprises an insulating plate arranged between the bottom plate and the circuit board.

[0015] The application further discloses a display device comprising a driving circuit and a display panel, the display panel comprising the lamp panel as described above, and the driving circuit driving the display panel.

[0016] The lamp panel of the application can realize the vibration of the lamp beads by arranging the heat conduction assembly, the vibration assembly and the vibration plate on the lamp panel, using the heat generated by the circuit board of the lamp panel during work, and transferring the heat to the vibration assembly to make the vibration assembly generate air flow pulse force to drive the vibration plate to vibrate, so as to realize the vibration of the lamp beads to complete the installation of the lamp beads on the lamp panel. Compared with the existing scheme of transferring the lamp beads by mechanical structure, only the internal structure of the lamp panel is used to realize the mass transfer and installation of the lamp beads, without the need of additional mass transfer equipment to realize the installation of the lamp beads, which reduces the production cost of Mini LED display products to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is to be understood that the drawings are solely for purposes of illustration and are not intended to limit the scope of the application. In the drawings:

[0018] Fig. 1 is a structural schematic diagram of a lamp plate according to the first embodiment of the present application;

[0019] Fig. 2 is an enlarged view of A in Fig. 1 according to the first embodiment of the present application;

[0020] Fig. 3 is a structural schematic diagram of the lamp plate after the lamp beads are spread on the lamp plate according to the first embodiment of the present application;

[0021] Fig. 4 is a structural schematic diagram of the lamp plate after the lamp beads are installed according to the first embodiment of the present application;

[0022] Fig. 5 is a structural schematic diagram of the lamp bead according to the first embodiment of the present application;

[0023] Fig. 6 is a structural schematic diagram of the heat conduction component according to the first embodiment of the present application;

[0024] Fig. 7 is a structural schematic diagram of a display device according to the second embodiment of the present application.

[0025] In the drawings: 100, lamp plate; 110, bottom plate; 120, circuit board; 130, heat conduction component; 131, heat conduction outer frame; 132, heat conduction inner frame; 140, vibrating plate; 141, mounting position; 142, first positioning block; 143, through hole; 150, lamp bead; 151, second positioning block; 152, pin; 200, vibrating component; 210, air flow circulation part; 211, air flow guide piece; 211a, air inlet end; 211b, air outlet end; 211c, air flow channel; 211d, air flow paddle; 212, first heating cavity; 213, first cavity; 214, one-way valve; 220, vibrating part; 221, positioning groove; 222, sliding block; 230, limiting piece; 231, limiting groove; 232, protrusion; 240, reset part; 241, fixing piece; 242, elastic piece; 250, elastic blocking piece; 300, blocking component; 310, blocking piece; 311, sealing part; 312, blocking part; 312a, connecting part; 312b, bonding part; 313, adhesive; 320, second reset piece; 400, second cavity; 410, supporting piece; 500, insulating plate; 600, glass substrate; 700, display panel; 800, driving circuit; 900, display device. DETAILED DESCRIPTION

[0026] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; that the specific forms of phrases conjunctive in form, for example, "comprising," "including," containing," etc., are used open- ended. That is, a phrase applying one of these conjunctive terms is to be affi rmed to refer to each item in the list individually as well as to the group of items as a whole.

[0027] In the description of the present application, the terms "first", "second", "third" and the like are used only for the purpose of description, and are not intended to indicate relative importance or imply that the described technical features are limited to the indicated number. Therefore, unless otherwise specified, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means to include, without excluding, that one or more other features, integers, steps, operations, units, components and / or combinations thereof can be present or added.

[0028] In addition, the terms indicating the orientation or positional relationship of "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are described based on the orientation or relative positional relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and are not intended to indicate that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] Furthermore, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The present application will be described in detail below with reference to the accompanying drawings and optional embodiments, it should be noted that the embodiments described below or the technical features between them can be combined to form new embodiments without conflict.

[0031] The inventors of the present application found in daily work that when the MiniLED display product is working, the circuit board will generate heat, which is a kind of energy that cannot be utilized. People usually only consider how to dissipate the heat, and do not consider using the heat. Therefore, the inventors considered using the heat in the process of mass transfer of MiniLED lamp beads, thereby obtaining the technical scheme of the present application. The specific technical scheme is as follows.

[0032] As shown in FIGS. 1-6, as a first embodiment of the present application, a lamp panel 100 is disclosed, which is applied to a display panel, the lamp panel 100 comprising a bottom plate 110, a circuit board 120, a heat conduction assembly 130, a vibrating plate 140, a vibrating assembly 200 and a plurality of lamp beads 150, the circuit board 120 being arranged on the bottom plate 110, the heat conduction assembly 130 being arranged on the bottom plate 110 and surrounding the circuit board 120, i.e. the heat conduction assembly 130 and the circuit board 120 are arranged in the same layer, the vibrating plate 140 being arranged on the heat conduction assembly 130, the vibrating plate 140 being provided with a plurality of through holes 143, the vibrating assembly 200 comprising an air flow circulation part 210, a vibrating part 220 and a limiting piece 230, the air flow circulation part 210 being arranged on the heat conduction assembly 130, the vibrating part 220 being arranged on a side of the air flow circulation part 210 away from the bottom plate 110, the limiting piece 230 being arranged on the heat conduction assembly 130, one end of the vibrating part 220 being connected with the vibrating plate 140 and the other end being in abutment with the limiting piece 230, the limiting piece 230, the vibrating part 220 and the heat conduction assembly 130 enclosing the air flow circulation part 210, the lamp bead 150 being provided with a pin 152, when the lamp bead 150 is mounted on the vibrating plate 140, the pin 152 of the lamp bead 150 passes through the through hole 143 and is electrically connected with the circuit board 120, the heat conduction assembly 130 conducts the heat generated by the circuit board 120 during operation to the air flow circulation part 210 of the vibrating assembly 200, the air flow circulation part 210 generates air flow pulse force after absorbing the heat, which impacts the vibrating part 220 to make it vibrate, so as to drive the vibrating plate 140 to vibrate, to drive the lamp bead 150 to vibrate on the vibrating plate 140, so that the lamp bead 150 gradually adjusts the position on the vibrating plate 140 until the lamp bead 150 is completely mounted, wherein when the lamp bead 150 is completely mounted, the pin 152 on the lamp bead 150 passes through the through hole 143, so that the lamp bead 150 is electrically connected with the circuit board 120.

[0033] The lamp beads 150 of the present embodiment are first randomly spread on the vibration plate 140 when the lamp beads 150 are assembled. The circuit board 120 is powered on, and the circuit board 120 generates heat when working. The heat is conducted to the air circulation part 210 of the vibration assembly 200 through the heat conduction assembly 130, heats the gas in the air circulation part 210 to form air circulation, so that the air circulation part 210 generates air flow pulse force due to the flow of gas, and impacts the vibration part 220 located above the air circulation part 210. The vibration part 220 impacted by the air flow vibrates to drive the vibration plate 140 to vibrate, so that the lamp beads 150 on the vibration plate 140 vibrate to realize the movement of the lamp beads 150, and the lamp beads 150 are gradually installed on the vibration plate 140 in the movement. By arranging the heat conduction assembly 130, the vibration assembly 200 and the vibration plate 140 on the lamp plate 100, the heat generated by the circuit board 120 of the lamp plate 100 itself when working is used. The heat conduction assembly 130 conducts heat to the vibration assembly 200 to make the vibration assembly 200 generate air flow pulse force to drive the vibration plate 140 to vibrate, so that the lamp beads 150 can vibrate to realize movement to complete the installation of the lamp beads 150 on the lamp plate 100. In general, the lamp plate 100 of the present embodiment can realize the massive transfer and installation of the lamp beads 150 by using only the internal structure of the lamp plate 100, without the need for additional massive transfer equipment to realize the installation of the lamp beads 150, which to some extent reduces the production cost of Mini LED display products.

[0034] Further, as shown in FIG. 2, the air flow circulation part 210 comprises an air flow guide 211, a first heating cavity 212, a first cavity 213 and a one-way valve 214, the air flow guide 211 comprises an air inlet end 211a close to the heat conduction assembly 130, an air outlet end 211b close to the vibration part 220, an air flow switch 211d and at least two air flow channels 211c for connecting the air inlet end 211a and the air outlet end 211b, the first heating cavity 212 is arranged on the air inlet end 211a of the air flow guide 211, the first cavity 213 is arranged on the air outlet end 211b of the air flow guide 211, the air flow switch 211d swings in the air flow guide 211 to make the gas flow out of the two air flow channels 211c into the first cavity 213 alternately, the one-way valve 214 connects the first cavity 213 and the first heating cavity 212, the gas passes through the one-way valve 214 to enter the first heating cavity 212 from the first cavity 213; the gas flows out of the air flow channel 211c to impact on the vibration part 220, so that the vibration part 220 vibrates to drive the vibration plate 140 to vibrate; wherein, the air flow channel 211c can be provided with only two air flow channels 211c, the two air flow channels 211c are arranged at intervals, so that when the gas flows out of the two air flow channels 211c, it will impact on two different positions of the vibration part 220, of course, the air flow channel 211c is not limited to two, it can also be provided with three air flow channels 211c or four air flow channels 211c, so that when the gas flows out of the air flow channel 211c, it will impact on three different positions or four different positions of the vibration part 220, so that the vibration part 220 is more likely to vibrate to drive the vibration plate 140 to vibrate, the designer can select the number of air flow channels 211c in the air flow guide 211 according to the actual needs, which is not limited here.

[0035] In the process of mass transfer installation of the lamp beads 150, first, the circuit board 120 is started, and the heat generated by the working of the circuit board 120 is conducted to the air circulation part 210 through the heat conduction assembly 130, the gas in the first heating cavity 212 is heated, and the gas in the first heating cavity 212 expands after being heated. The heated and expanded gas enters the air flow guide piece 211 from the air inlet end 211a of the air flow guide piece 211, and then enters the first cavity 213 from the air outlet end 211b. In this process, the gas in the air flow guide piece 211 drives the air flow paddle 211d to swing in the air flow guide piece 211, so that the gas in the air flow guide piece 211 alternately flows out of the two air flow channels 211c with the swinging of the air flow paddle 211d, that is, from the air outlet end 211b to enter the first cavity 213. The gas flowing out of the air flow channel 211c will impact on two different positions of the vibration part 220, so that the vibration part 220 vibrates due to the impact on different positions, to drive the vibration plate 140 to vibrate, and the gas also enters the first cavity 213. As more and more gas enters the first cavity 213, the gas in the first cavity 213 will press the one-way valve 214 to open, so that the gas in the first cavity 213 enters the first heating cavity 212 from the one-way valve 214, and then the gas is heated again by the heat conducted by the heat conduction assembly 130 to repeat the above steps to realize air circulation, so that the vibration part 220 and the vibration plate 140 continuously vibrate when the circuit board 120 works. The lamp beads 150 on the vibration plate 140 vibrate to realize movement to complete the installation of the lamp beads 150; that is, only by keeping the circuit board 120 powered on, the vibration plate 140 can continuously vibrate to make the lamp beads 150 vibrate to realize movement to complete the installation of the lamp beads 150.

[0036] In consideration of the fact that the gas in the first heating cavity 212 is still in the state of expansion after the lamp bead 150 is installed and the circuit board 120 stops being powered, the vibration part 220 and the vibration plate 140 are not easy to return to the initial position before the vibration. In order to make the vibration part 220 and the vibration plate 140 quickly return to the initial position, the vibration assembly 200 further comprises a reset part 240 arranged on the heat conduction assembly 130. The reset part 240 comprises a fixing part 241 arranged on the heat conduction assembly 130 and an elastic part 242 connected to the fixing part 241 at one end and connected to the vibration part 220 at the other end. When the vibration part 220 stops vibrating, the vibration part 220 moves towards the bottom plate 110 under the elastic force of the elastic part 242. In the embodiment, the elastic part 242 is a tension spring. When the vibration part 220 vibrates, the elastic part 242 is elastically deformed to be stretched. At this time, the elastic part 242 is in the state of elastic energy storage. When the vibration part 220 stops vibrating, the elastic part 242 is in the state of elastic potential energy. The vibration part 220 moves towards the bottom plate 110 under the elastic force of the elastic part 242, so as to return to the initial position. As shown in FIG. 2, the fixing part 241, the airflow guide part 211 and the heat conduction assembly 130 enclose to form the first heating cavity 212. The fixing part 241 and the airflow guide part 211 isolate the first heating cavity 212 and the first cavity 213. The fixing part 241 can further reduce the size of the first heating cavity 212, so that the gas in the first heating cavity 212 can be heated faster to expand.

[0037] However, when the vibration part 220 drives the vibration plate 140 to vibrate, a gap is generated between the vibration part 220 and the heat conduction assembly 130 due to the vibration of the vibration part 220. The gas in the first cavity 213 can overflow from the gap. In order to seal the gap, the vibration assembly 200 further comprises an elastic blocking part 250 connected to the vibration part 220 at one end and connected to the heat conduction assembly 130 at the other end. When the vibration part 220 vibrates, the elastic blocking part 250 is elastically deformed with the vibration of the vibration part 220 to seal the gap between the vibration part 220 and the heat conduction assembly 130. When the vibration part 220 stops vibrating, the elastic blocking part 250 returns to the initial state with the movement of the vibration part 220. In the embodiment, the elastic blocking part 250 can be elastic glue. The elastic glue can be high-temperature-resistant elastic glue, such as NBR (Nitrile Butadiene Rubber).

[0038] In the embodiment, in order to enable the vibration part 220 to drive the vibration plate 140 to vibrate well, the vibration part 220 is provided with a positioning groove 221 which cooperates with the vibration plate 140. The cross section of the positioning groove 221 in the direction perpendicular to the bottom plate 110 is C-shaped. The positioning groove 221 clamps the vibration plate 140 on the vibration part 220, and the positioning groove 221 surrounds three surfaces of the vibration plate 140, so that the vibration plate 140 is not easy to be separated from the vibration part 220 when the vibration plate 140 vibrates together with the vibration part 220. It should be noted that the positioning groove 221 is not limited to the C-shaped groove. The positioning groove 221 can be provided in other shapes, as long as it can enable the vibration plate 140 to be not easy to be separated when the vibration plate 140 vibrates together with the vibration plate 140. This is not limited here. In addition, in order to enable the vibration part 220 and the vibration plate 140 to move in a fixed direction when vibrating, the limiting part 230 is provided with a limiting groove 231, and the vibration part 220 is provided with a sliding block 222 corresponding to the limiting groove 231. The sliding block 222 is slidingly arranged in the limiting groove 231. When the vibration part 220 vibrates, the sliding block 222 slides in the limiting groove 231 to limit the moving direction of the vibration part 220, so that the vibration part 220 and the vibration plate 140 can only reciprocate along the extension direction of the limiting groove 231 to realize vibration. The extension direction of the limiting groove 231 is the Y-axis direction shown in FIG. 1, that is, the direction away from the bottom plate 110.

[0039] In addition, in order to enable the heat conduction assembly 130 to better conduct the heat generated by the circuit board 120 when working, the inventor also designs the heat conduction assembly 130. As shown in FIG. 6, the heat conduction assembly 130 includes a heat conduction outer frame 131 arranged in a peripheral region and a heat conduction inner frame 132 arranged in a middle region. A gap is arranged between the heat conduction outer frame 131 and the heat conduction inner frame 132. The circuit board 120 is arranged in the gap. The heat conduction rate of the heat conduction inner frame 132 is greater than that of the heat conduction outer frame 131, so that the heat generated by the circuit board 120 when working can be quickly conducted to the first heating cavity 212 through the heat conduction inner frame 132 and the heat conduction outer frame 131 to heat the gas in the first heating cavity 212. In addition, the heat conduction rates of the heat conduction inner frame 132 and the heat conduction outer frame 131 can be arranged in a hierarchical manner in the direction from the center of the lamp panel 100 to the periphery of the lamp panel 100, so that the heat generated by the circuit board 120 when working can be gathered at a position close to the first heating cavity 212 through the heat conduction inner frame 132 and the heat conduction outer frame 131.

[0040] During the installation process, only the pins 152 of the lamp beads 150 are matched with the through holes 143 on the vibration plate 140, and a long time is needed to move to install all the lamp beads 150. In order to speed up the installation time of the lamp beads 150 and facilitate the positioning of the lamp beads 150 during installation, in the embodiment, a plurality of installation positions 141 are arranged on the vibration plate 140, and each installation position 141 is provided with a first positioning block 142. The lamp beads 150 are provided with a second positioning block 151. When the lamp beads 150 are installed on the installation position 141, the first positioning block 142 is matched with the second positioning block 151. The first positioning block 142 and the second positioning block 151 are magnetically attracted and matched. During the installation process, the second positioning block 151 on the lamp bead 150 is magnetically attracted and matched with the first positioning block 142 on the vibration plate 140, so as to assist the installation of the lamp bead 150 and fix the lamp bead 150 on the vibration plate 140. The installed lamp bead 150 is not moved with the vibration of the vibration plate 140 due to the magnetic attraction of the first positioning block 142 and the second positioning block 151, so that the plurality of lamp beads 150 can be gradually installed. It should be noted that the first positioning block 142 and the second positioning block 151 can be electromagnets. The first positioning block 142 can be N-pole, and the second positioning block 151 can be S-pole, or the magnetic poles of the first positioning block 142 and the second positioning block 151 can be reversed. As long as the first positioning block 142 and the second positioning block 151 can be magnetically attracted and matched, this is not limited here, and the designer can select and design according to the actual needs.

[0041] As shown in FIG. 1, the lamp plate 100 further comprises an insulating plate 500 arranged between the bottom plate 110 and the circuit board 120. The insulating plate 500 is used to insulate the circuit board 120 from the bottom plate 110 to avoid the leakage of the circuit board 120 affecting the bottom plate 110. The insulating plate 500 can be heat-insulated to concentrate the heat on both sides of the insulating plate 500 and not enter the bottom plate 110. If the lamp plate 100 itself generates a large amount of heat, the insulating plate 500 can not be designed as heat-insulated to conduct the heat to the bottom plate 110 to assist heat dissipation. The designer can select and design whether the insulating plate 500 is heat-insulated according to the actual situation.

[0042] In order to avoid the failure of the installation of the lamp beads 150 due to the fact that the lamp beads 150 jump out of the range of the lamp plate 100 caused by the high vibration frequency of the lamp beads 150 when the lamp beads 150 vibrate on the vibration plate 140, the inventor designs a blocking assembly 300 to block the lamp beads 150 on the lamp plate 100, as shown in FIG. 1 and FIG. 2, the lamp plate 100 further comprises the blocking assembly 300 and a second cavity 400, the blocking assembly 300 is arranged above the bottom plate 110, the blocking assembly 300, the limiting piece 230, the bottom plate 110 and the heat-conducting assembly 130 enclose to form the second cavity 400; the heat-conducting assembly 130 transfers heat to the second cavity 400 to heat the gas in the second cavity 400, so that the gas in the second cavity 400 expands to lift the blocking assembly 300, thereby avoiding the failure of the installation of the lamp beads 150 due to the fact that the lamp beads 150 jump out of the range of the lamp plate 100 caused by the vibration frequency when the lamp beads 150 vibrate on the vibration plate 140. The second cavity 400 is also provided with a support 410, one end of the support 410 abuts against the bottom plate 110, and the other end abuts against the blocking assembly 300, so as to support the blocking assembly 300 when the gas in the second cavity 400 is not heated and expanded, wherein the support 410 is arranged away from the heat-conducting assembly 130.

[0043] The blocking assembly 300 comprises a blocking piece 310 and a second reset piece 320, the blocking piece 310 comprises a sealing part 311 and a blocking part 312, the sealing part 311 is arranged close to the bottom plate 110, the sealing part 311 and the limiting piece 230, the bottom plate 110 and the heat conduction assembly 130 form the second cavity 400, the blocking part 312 is arranged on the side of the sealing part 311 away from the bottom plate 110, the blocking part 312 is arranged in close contact with the limiting piece 230, the limiting piece 230 is provided with a protrusion 232, one end of the second reset piece 320 abuts against the protrusion 232, and the other end abuts against the sealing part 311, when the blocking assembly 300 is lifted up by the expansion of the gas in the second cavity 400, the sealing part 311 moves away from the bottom plate 110 to compress and store energy of the second reset piece 320, and when the gas in the second cavity 400 does not expand, the elastic potential energy of the second reset piece 320 moves the sealing part 311 towards the bottom plate 110 to facilitate the blocking piece 310 to return to the initial state; wherein the blocking part 312 comprises a connecting part 312a and an adhesive part 312b, the connecting part 312a and the adhesive part 312b are arranged perpendicular to each other, the adhesive part 312b is provided with an adhesive 313, after the installation of the lamp beads 150 on the lamp plate 100 is completed, the adhesive 313 is adhered to the limiting piece 230 to adhere the adhesive part 312b and the limiting piece 230, so that when the subsequent circuit board 120 works and generates heat, the gas in the second cavity 400 is not expanded and the blocking assembly 300 is not lifted up again.

[0044] The lamp panel 100 of the embodiment, when the lamp beads 150 are massively transferred and installed, first randomly spread the lamp beads 150 on the vibration plate 140. At this time, as shown in FIG. 3, the circuit board 120 is powered on, and the circuit board 120 works to generate heat. The heat is conducted to the air circulation part 210 of the vibration assembly 200 through the heat conduction assembly 130, heats the gas in the air circulation part 210 to form air circulation, so that the air circulation part 210 generates air flow pulse force due to the flow of gas, and impacts the vibration part 220 located above the air circulation part 210. The vibration part 220 impacted by the air flow vibrates to drive the vibration plate 140 to vibrate, so that the lamp beads 150 on the vibration plate 140 vibrate to realize the movement of the lamp beads 150, and the lamp beads 150 are gradually installed on the vibration plate 140 in the movement. At the same time, the heat generated by the working of the circuit board 120 is conducted to the second cavity 400 through the heat conduction assembly 130, heats the gas in the second cavity 400 to make the gas expand, and lifts the blocking assembly 300 to avoid the situation that the lamp beads 150 jump out of the range of the lamp panel 100 due to the vibration frequency when the lamp beads 150 vibrate on the vibration plate 140, resulting in installation failure of the lamp beads 150. When the lamp beads 150 are installed, the circuit board 120 stops being powered on, and under the elastic force of the reset part 240 and the second reset piece 320, the blocking piece 310 and the vibration part 220 and the vibration plate 140 move towards the direction of the bottom plate 110, that is, return to the initial state, so as to facilitate the next installation process, that is, the glass substrate 600 is installed above the blocking piece 310 and the lamp beads 150 to press the blocking piece 310 and the lamp beads 150 tightly. The installed lamp panel 100 is shown in FIG. 4. The lamp panel 100 of the embodiment, compared with the existing scheme of transferring the lamp beads 150 through a mechanical structure, can realize the massive transfer and installation of the lamp beads 150 only by using the internal structure of the lamp panel 100. The vibration assembly 200 in the lamp panel 100 realizes the vibration installation of the lamp beads 150, and the blocking assembly 300 in the lamp panel 100 blocks the situation that the lamp beads 150 may jump out of the range of the lamp panel 100 when vibrating. The two are combined to realize the massive transfer and installation of the lamp beads 150. No additional massive transfer equipment is needed to realize the installation of the lamp beads 150, which to some extent reduces the production cost of Mini LED display products.

[0045] As shown in FIG. 7, as a second embodiment of the present application, a display device 900 is disclosed, which comprises a driving circuit 800 and a display panel 700 comprising the lamp panel 100 as described in the above embodiments, and the driving circuit 800 drives the display panel 700. The display device of the present embodiment, by arranging the heat conduction component, the vibration component and the vibration plate on the lamp panel, utilizes the heat generated by the circuit board of the lamp panel during work, and the heat conduction component conducts the heat to the vibration component to make the vibration component generate airflow pulse force to drive the vibration plate to vibrate, so as to enable the lamp beads to vibrate to achieve movement to complete the installation of the lamp beads on the lamp panel. Compared with the existing scheme which needs to transfer the lamp beads by mechanical structure, only the internal structure of the lamp panel can be used to realize the massive transfer and installation of the lamp beads, without the need for additional massive transfer equipment to realize the installation of the lamp beads, which to some extent reduces the production cost of the MiniLED display product.

[0046] It should be noted that the steps involved in the present scheme are not limited to the order of execution, and the steps written in the front can be executed first, or executed later, or even executed simultaneously, as long as the present scheme can be implemented, it should be considered as belonging to the protection scope of the present application.

[0047] It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the length of the application file is limited and cannot be listed one by one, therefore, on the premise of not conflicting, the above described embodiments or technical features can be combined to form new embodiments, and the combination of each embodiment or technical feature will enhance the original technical effect.

[0048] The above is a further detailed description of the present application in combination with specific optional embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be considered as belonging to the protection scope of the present application.

Claims

1. A lamp panel applied to a display panel, wherein, The lamp panel comprises: a bottom plate; a circuit board arranged on the bottom plate; a heat-conducting assembly arranged on the bottom plate and surrounding the circuit board; a vibrating plate arranged on the heat-conducting assembly, the vibrating plate being provided with a plurality of through holes; a vibrating assembly comprising an air flow circulation part, a vibrating part and a limiting piece, the air flow circulation part being arranged on the heat-conducting assembly, the vibrating part being arranged on a side of the air flow circulation part away from the bottom plate, the limiting piece being arranged on the heat-conducting assembly, one end of the vibrating part being connected with the vibrating plate and the other end being abutted with the limiting piece, the limiting piece and the vibrating part and the heat-conducting assembly enclosing the air flow circulation part; and a plurality of lamp beads, the lamp beads being provided with pins, the pins being electrically connected with the circuit board when the lamp beads are mounted on the vibrating plate through the through holes; wherein the heat-conducting assembly conducts heat generated by the circuit board during operation to the air flow circulation part of the vibrating assembly, the air flow circulation part generates air flow pulse force after absorbing heat, the vibrating part is impacted to vibrate, the vibrating plate is driven to vibrate, and the lamp beads are driven to vibrate on the vibrating plate.

2. The lamp panel of claim 1, wherein, The air flow circulation part comprises an air flow guide piece, a first heating cavity, a first cavity and a one-way valve, the air flow guide piece comprises an air inlet end close to the heat-conducting assembly, an air outlet end close to the vibrating part, an air flow paddle and at least two air flow channels connecting the air inlet end and the air outlet end, the first heating cavity is arranged on the air inlet end of the air flow guide piece, the first cavity is arranged on the air outlet end of the air flow guide piece, the air flow paddle swings in the air flow guide piece to make gas flow out of the two air flow channels into the first cavity alternately, the one-way valve connects the first cavity and the first heating cavity, and gas passes through the one-way valve to enter the first heating cavity from the first cavity; wherein air flow flows out of the air flow channels to impact on the vibrating part, so that the vibrating part vibrates to drive the vibrating plate to vibrate.

3. The lamp panel of claim 2, wherein, The vibrating assembly further comprises a reset part, the reset part being arranged on the heat-conducting assembly, the reset part comprising a fixing piece and an elastic piece, the fixing piece being arranged on the heat-conducting assembly, one end of the elastic piece being connected with the fixing piece and the other end being connected with the vibrating part; wherein when the vibrating part stops vibrating, the vibrating part moves towards the bottom plate under the elastic force of the elastic piece.

4. The lamp panel of claim 2, wherein, The vibrating assembly further comprises an elastic blocking piece, one end of the elastic blocking piece being connected with the vibrating part and the other end being connected with the heat-conducting assembly; wherein when the vibrating part vibrates, the elastic blocking piece deforms with the vibration of the vibrating part.

5. The lamp panel of claim 1, wherein, The vibrating part is provided with a positioning groove, the positioning groove cooperating with the vibrating plate; wherein the cross section of the positioning groove in the direction perpendicular to the bottom plate is C-shaped.

6. The lamp panel of claim 1, wherein, The heat-conducting assembly comprises a heat-conducting outer frame arranged in a peripheral region and a heat-conducting inner frame arranged in a middle region, a gap being arranged between the heat-conducting outer frame and the heat-conducting inner frame, and the circuit board being arranged in the gap; The heat conduction rate of the heat conduction inner frame is greater than the heat conduction rate of the heat conduction outer frame.

7. The lamp panel of claim 1, wherein, The blocking assembly is arranged above the bottom plate, and the blocking assembly, the limiting piece, the bottom plate and the heat conduction assembly enclose the second cavity. The heat conduction assembly transfers heat to the second cavity to lift the blocking assembly.

8. The lamp panel of claim 1, wherein, The vibration plate is provided with a plurality of mounting positions, and each mounting position is provided with a first positioning block. The lamp bead is provided with a second positioning block. When the lamp bead is mounted on the mounting position, the first positioning block cooperates with the second positioning block. The first positioning block and the second positioning block are magnetically attracted.

9. The lamp panel of claim 1, wherein, The insulating plate is arranged between the bottom plate and the circuit board.

10. The lamp panel of claim 2, wherein, The airflow channel is only provided with two airflow channels, and the two airflow channels are arranged at intervals to make the gas flow out of the two airflow channels and impact two different positions of the vibration part.

11. The lamp panel of claim 3, wherein, The elastic piece is a tension spring.

12. The lamp panel of claim 4, wherein, The elastic blocking piece is a butadiene rubber.

13. The lamp panel of claim 1, wherein, The limiting piece is provided with a limiting groove, and the vibration part is provided with a sliding block corresponding to the limiting groove. The sliding block and the limiting groove are slidingly arranged. When the vibration part vibrates, the sliding block slides in the limiting groove to limit the movement direction of the vibration part, so that the vibration part and the vibration plate can only reciprocate along the extension direction of the limiting groove to realize vibration.

14. The lamp panel of claim 6, wherein, The heat conduction rates of the heat conduction inner frame and the heat conduction outer frame decrease in turn along the direction from the center of the lamp panel to the periphery of the lamp panel.

15. The lamp panel of claim 7, wherein, The second cavity is provided with a support piece, one end of the support piece abuts against the bottom plate, and the other end abuts against the blocking assembly to support the blocking assembly.

16. The lamp panel of claim 15, wherein, The support piece is arranged away from the heat conduction assembly.

17. The lamp panel of claim 7, wherein, The blocking assembly includes a blocking piece and a second reset piece. The blocking piece includes a sealing part and a blocking part. The sealing part is arranged close to the bottom plate. The sealing part, the limiting piece, the bottom plate and the heat conduction assembly enclose the second cavity. The blocking part is arranged on the side of the sealing part away from the bottom plate. The blocking part is arranged in close contact with the limiting piece. The limiting piece is provided with a protrusion. One end of the second reset piece abuts against the protrusion, and the other end abuts against the sealing part.

18. The lamp panel of claim 17, wherein, The blocking part includes a connecting part and an adhesive part. The connecting part and the adhesive part are arranged perpendicular to each other. The adhesive part is provided with an adhesive. After the lamp bead on the lamp panel is mounted, the adhesive is adhered to the limiting piece to adhere the adhesive part and the limiting piece.

19. The lamp panel of claim 8, wherein, The first positioning block and the second positioning block are electromagnets.

20. A display device comprising: The display panel comprises a lamp plate, the lamp plate comprises a bottom plate, a circuit board, a heat conduction assembly, a vibrating plate, a vibrating assembly and a plurality of lamp beads, the circuit board is arranged on the bottom plate, the heat conduction assembly is arranged on the bottom plate and surrounds the circuit board, the vibrating plate is arranged on the heat conduction assembly, a plurality of through holes are arranged on the vibrating plate, the vibrating assembly comprises an air flow circulation part, a vibrating part and a limiting piece, the air flow circulation part is arranged on the heat conduction assembly, the vibrating part is arranged on the side of the air flow circulation part away from the bottom plate, the limiting piece is arranged on the heat conduction assembly, one end of the vibrating part is connected with the vibrating plate, and the other end is abutted with the limiting piece, the limiting piece, the vibrating part and the heat conduction assembly enclose the air flow circulation part, the lamp bead is provided with a pin, when the lamp bead is mounted on the vibrating plate, the pin passes through the through hole and is electrically connected with the circuit board. The heat conduction assembly conducts the heat generated by the circuit board during work to the air flow circulation part of the vibrating assembly, the air flow circulation part generates air flow pulse force after absorbing the heat, the vibrating part is impacted to vibrate, the vibrating plate is driven to vibrate, and the lamp bead is driven to vibrate on the vibrating plate. The driving circuit drives the display panel.

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