Light panels and display devices

Abstract

The present application discloses a lamp board and a display device, and relates to the technical field of mass transfer of lamp beads; the lamp board comprises a base plate, a plurality of airflow acceleration components, a mounting plate and a plurality of lamp beads, the base plate being provided with an airflow channel; a plurality of airflow acceleration components being arranged on the base plate; the mounting plate being arranged on one end of the airflow acceleration component away from the base plate, a first chamber being formed between the mounting plate and the airflow acceleration component, and the air outlet being connected to the first chamber; a plurality of lamp beads being arranged on the mounting plate; the gas enters the airflow acceleration component through the airflow channel on the base plate, the airflow drives the airflow acceleration component to work so as to pressurize and accelerate the airflow, the airflow is accelerated and enters the first chamber to lift the mounting plate, so that the lamp beads on the mounting plate vibrate to gradually complete the installation of the lamp beads; the lamp board of the present application realizes mass transfer of lamp beads through its own structure, and reduces the requirements for mass transfer.

Description

Technical Field

[0001] The present application relates to the technical field of mass transfer of lamp beads, and in particular to a lamp board and a display device. Background Art

[0002] With the innovation and development of LED (light-emitting diode) technology, Micro-LED (Micro Light Emitting Diode Display) display technology has become a new generation of display technology. It is to miniaturize and matrix the traditional LED structure, so that the size of a single LED chip is reduced to tens of microns or even a few microns, and each LED pixel is addressed and driven to emit light individually. Since the display of Micro-LED chips has the advantages of high resolution, high brightness, long life, wide operating temperature range, strong anti-interference ability, fast response speed and low power consumption, Micro-LED has important application value in high-resolution display, helmet display, enhanced display, high-speed visible light communication, micro projector, optogenetics and wearable electronics.

[0003] The full-color gamut Micro-LED display is composed of red, green, and blue primary color (RGB) Micro-LED chips assembled on a substrate in a certain arrangement. Traditional RGB groups use red, green, and blue chips evenly spaced together horizontally to form an RGB effect. The size of a single group is relatively large and it is also difficult to assemble. The red, green, and blue chips need to be arranged in sequence, resulting in a large number of chips being transferred in mass transfer. Generally, an additional transfer mechanism is required to transfer the lamp beads in mass, resulting in higher requirements for the Micro-LED mass transfer process, low mass transfer efficiency and poor accuracy. Summary of the invention

[0004] The purpose of this application is to provide a lamp board and a display device, which can realize the mass transfer of lamp beads through their own structure and reduce the requirements for mass transfer.

[0005] The present application discloses a lamp board, which is applied to a display device. The lamp board includes a bottom plate, a plurality of airflow acceleration components, a mounting plate and a plurality of lamp beads. An airflow channel is provided on the bottom plate. The plurality of airflow acceleration components are arranged on the bottom plate. The airflow acceleration component includes a main body, a first cavity and a second cavity arranged in the main body, an intermediate cavity arranged between the first cavity and the second cavity, and an airflow acceleration member arranged in the first cavity and the second cavity. The first cavity and the second cavity are respectively arranged on both sides of the main body. The main body is provided with air inlet ends located on both sides and an air outlet end located in the middle. The air inlet ends located on both sides are respectively connected to the first cavity and the second cavity, and the air outlet end located in the middle is connected to the intermediate cavity. The main body is also provided with a first channel and a second channel, the first cavity is connected with the middle cavity through the first channel, the second cavity is connected with the middle cavity through the second channel, and the airflow channel is connected with the air inlet end; the mounting plate is arranged on the end of the airflow acceleration component away from the bottom plate, a first chamber is formed between the mounting plate and the airflow acceleration component, and the air outlet end is connected with the first chamber; a plurality of lamp beads are arranged on the mounting plate; wherein, the gas enters the airflow acceleration component through the airflow channel on the bottom plate, the airflow drives the airflow acceleration component to work to pressurize and accelerate the airflow, and then enters the first chamber to lift the mounting plate, so that the lamp beads on the mounting plate vibrate to gradually complete the installation of the lamp beads.

[0006] Optionally, the airflow acceleration component is a turbine structure, and the airflow acceleration component also includes two first baffles and a second baffle, the first baffle is arranged between the air inlet end and the turbine structure, and the second baffle is arranged between the air outlet end and the turbine structure; wherein, the gas enters the air inlet end and the first baffle from the airflow channel to drive the turbine structure to rotate, and the rotation of the turbine structure pressurizes and accelerates the gas in the airflow acceleration component, and the gas enters the first chamber from the air outlet end to lift the mounting plate.

[0007] Optionally, the turbine structures located on both sides of the air outlet are arranged symmetrically to each other.

[0008] Optionally, a limiting member is further provided on the mounting plate, one end of the limiting member is connected to the mounting plate, and the other end is connected to the airflow acceleration component; wherein, when the mounting plate is lifted up, the limiting member generates elastic deformation to limit the position of the mounting plate.

[0009] Optionally, the lamp board also includes a blocking component, which is arranged on the base plate and located at the periphery of the base plate, the blocking component includes a fixed part, a driving member and a movable member, the fixed part is arranged on the base plate, the driving member is arranged in the fixed part, one end of the movable member extends into the fixed part and is driven and connected to the driving member, and the other end extends out of the fixed part, the fixed part is provided with an air inlet channel, the air inlet end of the air inlet channel is connected to the air flow channel of the base plate, and the air outlet end of the air inlet channel is arranged corresponding to the driving member, so that the gas at the air outlet end of the air inlet channel drives the driving member to rotate; wherein, when the driving member rotates, the movable member moves in a direction away from or close to the base plate.

[0010] Optionally, an air nozzle is further provided on the air outlet end of the air inlet channel, and the air nozzle limits the gas in the air inlet channel to flow out in the direction of the driving member, so as to drive the driving member to rotate.

[0011] Optionally, the driving member is a gear, and the movable member is provided with a rack that matches the gear. The gear is meshed with the rack, and when the gear rotates, the movable member is driven to move in a direction away from or close to the base plate.

[0012] Optionally, the blocking assembly also includes a limit spring, which is arranged between the movable member and the fixed part, one end of the limit spring is connected to the movable member, and the other end is connected to the fixed part, and when the movable member moves in a direction away from the base plate, the limit spring undergoes elastic deformation.

[0013] Optionally, the mounting board includes a circuit layer and an electromagnetic layer, the lamp bead is provided with a positioning magnet, a lamp bead circuit board and pins arranged on the lamp bead circuit board, the positioning magnet and the electromagnetic layer are magnetically attracted to each other, and after the lamp bead is installed on the mounting board, the pins of the lamp bead are connected to the circuit layer so that the circuit layer supplies power to the lamp bead.

[0014] The present application also discloses a display device, including a driving circuit and a display panel, wherein the driving circuit drives the display panel to operate, and the display panel includes a glass substrate and the light board as described above, wherein the glass substrate is arranged on the light board.

[0015] The lamp board of the present application is provided with an airflow acceleration component. The airflow acceleration component can pressurize and accelerate the gas by utilizing the flowing gas to drive the airflow acceleration component to operate, so that the gas generates a pulse force to lift up the mounting plate, so that the lamp beads on the mounting plate vibrate to gradually complete the installation of the lamp beads, thereby realizing the mass transfer of the lamp beads. The lamp board of this embodiment can realize the mass transfer of the lamp beads through its own structure without the need for additional transfer mechanisms, thereby reducing the cost of lamp board production. Moreover, the mass transfer process requirements for the lamp beads are not high. The lamp beads only need to be laid on the mounting plate and gas can be supplied through the airflow channel of the bottom plate to activate the airflow acceleration component to complete the installation of the lamp beads. The mass transfer of the lamp beads is efficient and accurate, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a light board according to the first embodiment of the present application;

[0018] Figure 2 This application Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 3 is a structural schematic diagram of an airflow acceleration component in the first embodiment of the present application;

[0020] Figure 4 This application Figure 3 Schematic diagram of the section at aa in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the lamp bead in the first embodiment of the present application;

[0022] Figure 6 This application Figure 1 The enlarged schematic diagram of point B in the middle;

[0023] Figure 7 is a schematic diagram of a light panel before installation in the second embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of a state of a light panel after installation in the second embodiment of the present application;

[0025] Fig. 9It is a structural schematic diagram of a display device of the third embodiment of the present application.

[0026] Among them, 100, lamp board; 110, bottom plate; 111, air flow channel; 120, air flow acceleration component; 121, main body; 121a, air inlet end; 121b, air outlet end; 121c, first channel; 121d, second channel; 122, first cavity; 123, second cavity; 124, middle cavity; 125, air flow acceleration member; 126, first partition; 127, second partition; 130, mounting plate; 131, circuit layer; 132, electromagnetic layer; 140, first chamber; 150, lamp beads; 151, lamp bead circuit board; 152, pins; 153, positioning magnet; 154, reflecting part; 155, protection Glass layer; 156, blocking part; 160, first light-emitting structure; 161, cathode layer; 162, electron injection layer; 163, electron transport layer; 164, light-emitting layer; 165, hole transport layer; 166, hole injection layer; 167, anode layer; 170, second light-emitting structure; 180, third light-emitting structure; 190, limiter; 200, blocking assembly; 210, fixing part; 211, air inlet channel; 212, air nozzle; 220, driving part; 230, moving part; 231, rack; 240, limiter spring; 300, glass substrate; 400, display panel; 500, driving circuit; 600, display device. DETAILED DESCRIPTION

[0027] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, features defined as "first" and "second" may explicitly or implicitly include one or more of the features; "plurality" means two or more. The term "including" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may exist or be added.

[0029] In addition, terms indicating orientation or positional relationships, such as “center,” “lateral,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inside,” and “outside,” are described based on the orientation or relative positional relationships shown in the accompanying drawings and are merely simplified descriptions for the convenience of describing the present application. They do not indicate that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present application.

[0030] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The present application is described in detail below with reference to the accompanying drawings and optional embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] like Figure 1 and Figure 2As shown, as a first embodiment of the present application, a lamp board 100 is disclosed, which is applied to a display device. The lamp board 100 includes a bottom plate 110, a plurality of airflow acceleration components 120, a mounting plate 130 and a plurality of lamp beads 150. The bottom plate 110 is provided with an airflow channel 111. The plurality of airflow acceleration components 120 are arranged on the bottom plate 110. The airflow acceleration component 120 includes a main body 121, a first cavity 122 and a second cavity 123 arranged in the main body 121, and a cavity 124 arranged in the first cavity 122 and the second cavity 123. The middle cavity 124 between the two cavities 123, and the airflow acceleration member 125 arranged in the first cavity 122 and the second cavity 123, the first cavity 122 and the second cavity 123 are respectively arranged on both sides of the main body 121, and the main body 121 is provided with air inlet ends 121a located on both sides and an air outlet end 121b located in the middle, the air inlet ends 121a located on both sides are respectively connected to the first cavity 122 and the second cavity 123, and the air outlet end 121b located in the middle is connected to the middle cavity The main body 121 is connected to the air flow acceleration component 120, and the main body 121 is further provided with a first channel 121c and a second channel 121d. The first cavity 122 is connected to the middle cavity 124 through the first channel 121c, and the second cavity 123 is connected to the middle cavity 124 through the second channel 121d. The air flow channel 111 is connected to the air inlet end 121a. The mounting plate 130 is disposed on an end of the air flow acceleration component 120 away from the bottom plate 110, and a mounting plate 130 is formed between the mounting plate 130 and the air flow acceleration component 120. A first chamber 140 is formed, the air outlet end 121b is connected to the first chamber 140, and a plurality of lamp beads 150 are arranged on the mounting plate 130; the gas enters the airflow acceleration component 120 through the airflow channel 111 on the bottom plate 110, and the airflow drives the airflow acceleration component 125 to work to pressurize and accelerate the airflow, and then enters the first chamber 140 to lift the mounting plate 130, so that the lamp beads 150 on the mounting plate 130 vibrate to gradually complete the installation of the lamp beads 150.

[0033] In this embodiment, when installing the lamp bead 150, the lamp board 100 first lays the lamp bead 150 on the mounting plate 130, and then transports the gas to the air inlet ends 121a on both sides of the airflow acceleration component 120 through the airflow channel 111 on the bottom plate 110. The gas passes through the air inlet end 121a of the airflow acceleration component 120 and enters the first cavity 122 and the second cavity 123 of the airflow acceleration component 120. After flowing through the airflow acceleration component 125 located in the first cavity 122 and the second cavity 123, it enters the middle cavity 124, and then enters the first cavity 140 formed between the mounting plate 130 and the airflow acceleration component 120 from the air outlet end 121b of the airflow acceleration component 120. In this process, the flowing gas will bring The dynamic airflow acceleration member 125 rotates, and the rotating airflow acceleration member 125 pressurizes and accelerates the gas in the first cavity 122 and the second cavity 123, so that the gas in the first cavity 122 and the second cavity 123 is accelerated to enter the middle cavity 124, and is accelerated to enter the first cavity 140 from the gas outlet 121b of the airflow acceleration component 120. The gas entering the first cavity 140 is accelerated, and the mounting plate 130 is impacted to push the mounting plate 130 away from the airflow acceleration component 120, so that the lamp bead 150 on the mounting plate 130 vibrates as the mounting plate 130 is pushed up, and the lamp bead 150 gradually moves on the mounting plate 130 with its own vibration to adjust the position of the lamp bead 150. To gradually complete the installation of the lamp beads 150, and realize the mass transfer installation of the lamp beads 150, the mass transfer efficiency is high and the precision is high; in general, the lamp board 100 of this embodiment is provided with an airflow acceleration component 120, and the airflow acceleration component 120 can drive the airflow acceleration component 125 to operate by utilizing the flowing gas to pressurize and accelerate the gas, so that the gas generates a pulse force to lift up the mounting plate 130, so that the lamp beads 150 on the mounting plate 130 vibrate to gradually complete the installation of the lamp beads 150, and realize the mass transfer of the lamp beads 150. The lamp board 100 of this embodiment can realize the mass transfer of the lamp beads 150 through its own structure without the need for additional transfer mechanisms, thereby reducing the production cost of the lamp board 100, and the lamp beads 150 The requirements for the mass transfer process are not high. The installation of the lamp bead 150 can be completed by simply laying the lamp bead 150 on the mounting plate 130 and supplying gas through the air flow channel 111 of the base plate 110 to enable the air flow acceleration component 120. The mass transfer efficiency of the lamp bead 150 is high and the accuracy is good, and it has good application prospects. It should be noted that a plurality of the air flow acceleration components 120 are laid flat on the base plate 110, and the air flow channel 111 on the base plate 110 is provided with an air outlet between two adjacent air flow acceleration components 120, so that the gas in the air flow channel 111 passes through the air outlet to enter the air flow acceleration component 120. When installing the lamp bead 150, the gas supply can be achieved by connecting an external air pump to the base plate 110.

[0034] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the airflow acceleration member 125 is a turbine structure, and the airflow acceleration component 120 also includes two first baffles 126 and a second baffle 127. The first baffle 126 is arranged between the air inlet end 121a and the turbine structure, and the second baffle 127 is arranged between the air outlet end 121b and the turbine structure. When the gas enters the air inlet end 121a from the airflow channel 111, it passes through the first baffle 126 and then flows through the turbine structure to drive the turbine structure to rotate. During the rotation of the turbine structure, the blades of the turbine structure will continuously overlap with the first baffle 126 and the second baffle 127 to change the pressure of the first cavity 122 and the second cavity 123 in the airflow acceleration component 120, that is, the turbine structure When rotating, the gas in the first cavity 122 and the second cavity 123 is squeezed, so that the gas pressure of the squeezed gas increases and the gas is accelerated to flow out of the first cavity 122 and the second cavity 123 to the middle cavity 124, and then enters the first chamber 140 from the gas outlet 121b of the airflow acceleration component 120 to lift the mounting plate 130; in simple terms, when the gas flows through the turbine structure, the rotating blades of the turbine structure cause the gas to generate a vortex motion, causing the kinetic energy of the gas to be converted into pressure energy, thereby increasing the pressure of the gas to accelerate the gas to enter the first chamber 140 from the gas outlet 121b of the airflow acceleration component 120, so that the gas generates a pulse force to lift the mounting plate 130 in a direction away from the gas acceleration component;

[0035] Among them, when the blades of the turbine structure are about to overlap with the first baffle 126, when the pressure of the gas in the first cavity 122 and the second cavity 123 reaches the highest, the gas will lift the mounting plate 130 in the direction away from the gas acceleration component, and when the blades of the turbine structure overlap with the first baffle 126, the pressure of the gas in the first cavity 122 and the second cavity 123 will be slightly reduced. At this time, the mounting plate 130 will move in the direction close to the gas acceleration component under the action of the mass of the lamp beads 150 and its own mass. Through the above situation, the mounting plate 130 will move in both the up and down directions, so that the lamp beads 150 on the mounting plate 130 can vibrate, so that the lamp beads 150 can gradually adjust their own positions on the mounting plate 130 through vibration to complete the mass transfer installation of the lamp beads 150.

[0036] In this embodiment, if Figure 4As shown, the cross-section of the first baffle 126 and the second baffle 127 along the aa direction is cross-shaped, that is, the first baffle 126 and the second baffle 127 include four small baffles to divide the internal cavity of the airflow acceleration component 120 into four areas, and the number of blades of the turbine structure is also the same as or greater than the number of divided areas; and in order to enable the gas to better lift the mounting plate 130, the air outlet end 121b is provided with an exhaust channel, and the direction of the exhaust channel is set toward the mounting plate 130.

[0037] Furthermore, the two turbine structures located on both sides of the air outlet end 121b are symmetrically arranged, and the blades of the turbine structures are also symmetrically arranged. In this way, when the gas enters the air inlet end 121a of the airflow acceleration component 120 from the airflow channel 111 of the base plate 110, it enters the first cavity 122 and the second cavity 123, flows through the turbine structures located in the first cavity 122 and the second cavity 123, and enters the middle cavity 124 after the turbine structures rotate to increase pressure and accelerate. The accelerated gas enters the first cavity 140 from the air outlet end 121b to lift the mounting plate 130.

[0038] like Figure 1 and Figure 2 As shown, a limit member 190 is also provided on the mounting plate 130, one end of the limit member 190 is connected to the mounting plate 130, and the other end is connected to the airflow acceleration assembly 120. When the mounting plate 130 is lifted up, the limit member 190 generates elastic deformation to limit the position of the mounting plate 130, thereby preventing the mounting plate 130 from jumping out of the range of the lamp board 100 due to excessive pulse force of the gas when being lifted up; in this embodiment, the limit member 190 can be a compression spring. When the mounting plate 130 is lifted up, the compression spring is stretched to generate elastic deformation energy storage to limit the moving range of the mounting plate 130, thereby preventing the mounting plate 130 from being lifted up due to excessive pulse force of the gas.

[0039] like Figure 1 , Figure 2 and Figure 5As shown, the mounting plate 130 includes a circuit layer 131 and an electromagnetic layer 132. The lamp bead 150 is provided with a positioning magnet 153, a lamp bead circuit board 151 and a pin 152 arranged on the lamp bead circuit board 151. The positioning magnet 153 can be magnetically attracted to the electromagnetic layer 132. When the lamp bead 150 is mounted on the mounting plate 130, the pin 152 of the lamp bead 150 is connected to the circuit layer 131, so that the circuit layer 131 supplies power to the lamp bead 150. The circuit layer 131 is electrically connected to the lamp bead 150. 31 will supply power to the positioning magnet 153 of the lamp bead 150 and the lamp bead circuit board 151 through the pin 152 of the lamp bead 150. In this embodiment, the positioning magnet 153 is an electromagnet. The pin 152 of the lamp bead 150 includes a first pin and a second pin. The first pin and the second pin have different shapes. The circuit layer 131 is provided with a first groove matching the first pin and a second groove matching the second pin. The lamp bead 150 continuously vibrates and adjusts its position during the installation process so that the first pin of the lamp bead 150 matches the first groove and the second pin of the lamp bead 150 matches the second groove. At this time, the circuit layer 131 supplies power to the lamp bead 150, so that the positioning magnet 153 is energized to generate magnetism. The positioning magnet 153 and the electromagnetic layer 132 are magnetically attracted and fixed to complete the installation of the lamp bead 150. In general, in the lamp board 100 of this embodiment, when the lamp bead 150 is installed, the pin 152 of the lamp bead 150 will be connected to the circuit layer 131 after the lamp bead 150 is installed in place. The circuit layer 131 supplies power to the lamp bead 150 through the pin 152 of the lamp bead 150, so that the positioning magnet 153 of the lamp bead 150 generates magnetism, and the positioning magnet 153 is magnetically attracted to the electromagnetic layer 132 on the mounting plate 130 to be fixed, so as to complete the installation of the lamp bead 150. In addition, when the circuit layer 131 supplies power to the lamp bead 150, the lamp bead 150 can also be lit, so that the installer can easily identify the installed lamp bead 150, which facilitates the implementation of the mass transfer of the lamp bead 150 to a certain extent.

[0040] Specifically, the lamp bead 150 includes a light-emitting portion consisting of a first light-emitting structure 160, a second light-emitting structure 170 and a third light-emitting structure 180, and a reflective portion 154 arranged on the outside of the light-emitting portion, and a protective glass layer 155 is provided on the light-emitting portion to protect the first light-emitting structure 160, the second light-emitting structure 170 and the third light-emitting structure 180. A blocking portion 156 is provided between the first light-emitting structure 160, the second light-emitting structure 170 and the third light-emitting structure 180, and the blocking portion 156 is used to block the first light-emitting structure 160, the second light-emitting structure 170 and the third light-emitting structure 180 to prevent the light emitted by them from interfering with each other. In this embodiment, the blocking portion 156 can be made of black material; wherein, the first light-emitting structure 160, the second light-emitting structure 170 and the third light-emitting structure 180 all include cathodes arranged in sequence from top to bottom Layer 161, electron injection layer 162, electron transport layer 163, light-emitting layer 164, hole transport layer 165, hole injection layer 166 and anode layer 167, the first light-emitting structure 160, the second light-emitting structure 170 and the third light-emitting structure 180 only have different light-emitting colors of the light-emitting layers inside. In the present embodiment, the light-emitting color of the light-emitting layer of the first light-emitting structure 160 is red, the light-emitting color of the light-emitting layer of the second light-emitting structure 170 is green, and the light-emitting color of the light-emitting layer of the third light-emitting structure 180 is blue, so that a lamp bead 150 can emit red, green and blue light at the same time. Compared with the original method of arranging and assembling Micro-LED chips of the three primary colors of red, green and blue, the number of chips transferred by the mass transfer chip is reduced, the requirements for the mass transfer process of Micro-LED are reduced, and the mass transfer efficiency is high.

[0041] The inventor considers that when the lamp board 100 of the present application is assembling the lamp beads 150, the gas is accelerated into the first chamber 140 to lift the mounting plate 130, which may cause a momentary large impact on the mounting plate 130, causing the lamp beads 150 to jump or vibrate significantly, so that the lamp beads 150 jump out of the range of the lamp board 100. Based on this consideration, the inventor improves the lamp board 100 of the above embodiment, such as Figure 6As shown, as a second embodiment of the present application, which is an improvement of the first embodiment of the present application, a lamp board 100 is disclosed, wherein the lamp board 100 further includes a blocking component 200, wherein the blocking component 200 is disposed on the bottom plate 110 and is located at the periphery of the bottom plate 110, wherein the blocking component 200 includes a fixing portion 210, a driving member 220 and a moving member 230, wherein the fixing portion 210 is disposed on the bottom plate 110, and an air inlet channel 211 is disposed on the fixing portion 210, wherein an air inlet end of the air inlet channel 211 is connected to the bottom plate 110. The air flow channel 111 of the air inlet channel 211 is connected to the air flow channel 111 of the air inlet channel 211, and the outlet end of the air inlet channel 211 is arranged corresponding to the driving member 220, so that the gas at the outlet end of the air inlet channel 211 drives the driving member 220 to rotate. The driving member 220 is arranged in the fixed part 210, and one end of the moving member 230 extends into the fixed part 210 and is driven and connected to the driving member 220, and the other end extends out of the fixed part 210. When the driving member 220 rotates, the moving member 230 moves in a direction away from the bottom plate 110 or close to the bottom plate 110.

[0042] When the lamp bead 150 is installed, the lamp bead 150 is laid on the mounting plate 130, and then the gas enters the airflow acceleration component 120 through the airflow channel 111 of the bottom plate 110 for pressurization and acceleration. The pressurized and accelerated gas generates a pulse force to impact the mounting plate 130, and the mounting plate 130 is lifted up to make the lamp bead 150 on the mounting plate 130 vibrate, so that the lamp bead 150 gradually moves on the mounting plate 130 to adjust its own position. In this process, the gas will also move along the airflow channel 111. The gas enters the air inlet end of the air inlet channel 211 of the fixed part 210, and then flows out from the air outlet end of the air inlet channel 211. The outflowing gas drives the driving member 220 to rotate, and the driving member 220 rotates to drive the movable member 230 to move in a direction away from the base plate 110, so that the end of the movable member 230 away from the base plate 110 rises to block the vibrating lamp beads 150, so as to prevent the lamp beads 150 from splashing out of the installation area when the lamp beads 150 vibrate, thereby causing a failure in the massive transfer of the lamp beads 150.

[0043] Furthermore, in order to facilitate the gas flowing out of the air inlet channel 211 to drive the driving member 220 to rotate, an air nozzle 212 is further provided on the air outlet end of the air inlet channel 211, and the air nozzle 212 limits the air flow in the air inlet channel 211 to only flow out in the direction of the driving member 220, so as to drive the driving member 220 to rotate; in the present embodiment, the driving member 220 is a gear, and the moving member 230 is provided with a rack 231 matching the gear, and the gear is meshed with the rack 231. When the gear rotates, the moving member 230 is driven to move in a direction away from the bottom plate 110 or in a direction close to the bottom plate 110; wherein, when the air flow flows out from the air nozzle 212, the air flow drives the gear to rotate, and the direction in which the gear rotates will only drive the moving member 230 to move in a direction away from the bottom plate 110.

[0044] The blocking assembly 200 also includes a limit spring 240, which is arranged between the moving part 230 and the fixed part 210. One end of the limit spring 240 is connected to the moving part 230, and the other end is connected to the fixed part 210. When the moving part 230 moves in a direction away from the base plate 110, the limit spring 240 undergoes elastic deformation to limit the moving position of the moving part 230. At the same time, after the lamp bead 150 is installed, that is, when the gas stops flowing into the air flow channel 111, the moving part 230 moves towards the direction close to the base plate 110 under the action of its own gravity and the elastic energy release of the limit spring 240 to facilitate assembly of the next step.

[0045] In the lamp board 100 of this embodiment, when installing the lamp beads 150, first lay the lamp beads 150 on the mounting plate 130, such as Figure 7As shown, the gas is then transported through the airflow channel 111 on the bottom plate 110 (the gas can be provided by an external air pump), and the gas is transported to the air inlet ends 121a located on both sides of the airflow acceleration component 120 through the airflow channel 111. The gas enters the first cavity 122 and the second cavity 123 of the airflow acceleration component 120 through the air inlet end 121a of the airflow acceleration component 120, flows through the airflow acceleration member 125 located in the first cavity 122 and the second cavity 123, enters the middle cavity 124, and then enters the first cavity 140 formed between the mounting plate 130 and the airflow acceleration component 120 from the air outlet end 121b of the airflow acceleration component 120, and then enters the first cavity 140 formed between the mounting plate 130 and the airflow acceleration component 120. During the process, the flowing gas will drive the airflow acceleration member 125 to rotate, and the rotating airflow acceleration member 125 will pressurize and accelerate the gas in the first cavity 122 and the second cavity 123, so that the gas in the first cavity 122 and the second cavity 123 is accelerated to enter the middle cavity 124, and is accelerated to enter the first cavity 140 from the gas outlet end 121b of the airflow acceleration component 120. The gas entering the first cavity 140 will impact the mounting plate 130 due to being accelerated, so as to lift the mounting plate 130 in the direction away from the airflow acceleration component 120, so that the lamp beads 150 on the mounting plate 130 vibrate as the mounting plate 130 is lifted, and the lamp beads 150 vibrate as the mounting plate 130 is lifted. The vibration of the lamp itself gradually moves on the mounting plate 130 to adjust the position of the lamp bead 150, so as to gradually complete the installation of the lamp bead 150, and the gas will also enter the air inlet end of the air inlet channel 211 of the fixed part 210 along the air flow channel 111, and then flow out from the air outlet end of the air inlet channel 211. The outflowing gas will drive the driving member 220 to rotate, and the driving member 220 rotates to drive the moving member 230 to move in a direction away from the bottom plate 110, so that the end of the moving member 230 away from the bottom plate 110 rises to block the vibrating lamp bead 150, so as to prevent the lamp bead 150 from splashing out of the installation area when the lamp bead 150 vibrates, thereby causing the massive transfer of the lamp bead 150 to fail. After the lamp beads 150 are installed, the gas supply to the air flow channel 111 of the bottom plate 110 is stopped, and the air flow acceleration component 120 will gradually stop running, so that the mounting plate 130 stops vibrating, and the moving member 230 moves towards the direction close to the bottom plate 110 under the action of its own gravity, so as to facilitate the next step of installation. When the lamp beads 150 are installed, the next step is to install the glass substrate 300. The glass substrate 300 can be covered on the lamp board 100 and then pressed down to tighten the position of the lamp beads 150 and the position of the moving member 230, so that the limiting member 190 and the limiting spring 240 are compressed, and then fixed to complete the installation of the lamp board 100. After the installation is completed, Figure 8As shown; wherein, a metal fixing layer can be provided on the moving part 230, and the metal fixing layer is located between the moving part 230 and the fixing part 210. When the glass substrate 300 presses the position of the moving part 230, the metal fixing layer fixes the moving part 230 on the fixing part 210 to complete the installation; in this embodiment, the metal fixing layer can be fixed by bonding, such as strong adhesive, or by strong magnetic fixing. It should be noted that the metal fixing layer is used after the lamp bead 150 is installed to prevent the metal fixing layer from first fixing the moving part 230 and the fixing part 210. 0 is fixed, so that the movable part 230 cannot move, thereby affecting the blocking effect on the lamp beads 150; in general, the lamp board 100 of this embodiment can realize the mass transfer of the lamp beads 150 through its own structure without the need for additional transfer mechanisms, thereby reducing the production cost of the lamp board 100, and the mass transfer process of the lamp beads 150 does not require high requirements. After the lamp beads 150 are laid on the mounting plate 130, gas is supplied through the air flow channel 111 of the base plate 110 to enable the air flow acceleration component 120 to complete the installation of the lamp beads 150. The mass transfer of the lamp beads 150 is efficient and accurate, and has good application prospects.

[0046] like Fig. 9 As shown, as the third embodiment of the present application, a display device 600 is disclosed, the display device 600 includes a driving circuit 500 and a display panel 400, the driving circuit 500 drives the display panel 400 to work, the display panel 400 includes a glass substrate 300 and the lamp board 100 as described in the above embodiment, the glass substrate 300 is arranged on the lamp board 100; the display device of this embodiment is provided with an airflow acceleration component on the lamp board, and the airflow acceleration component can drive the airflow acceleration component to operate by utilizing the flowing gas to pressurize and accelerate the gas. , so that the gas generates a pulse force to lift up the mounting plate, so that the lamp beads on the mounting plate vibrate to gradually complete the installation of the lamp beads, thereby realizing the mass transfer of the lamp beads. The lamp board of this embodiment can realize the mass transfer of the lamp beads through its own structure without the need for additional transfer mechanisms, thereby reducing the cost of lamp board production. Moreover, the mass transfer process of the lamp beads does not require high requirements. The installation of the lamp beads can be completed by simply laying the lamp beads on the mounting plate and supplying gas through the airflow channel of the bottom plate to enable the airflow acceleration component. The mass transfer of the lamp beads has high efficiency and good accuracy, and has good application prospects.

[0047] It should be noted that the limitations on the various steps involved in this solution, without affecting the implementation of the specific solution, are not deemed to limit the order of the steps. The steps written in front can be executed first, or later, or even simultaneously. As long as this solution can be implemented, it should be deemed to fall within the scope of protection of this application.

[0048] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0049] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A light board, applied to a display device, characterized in that: The light board comprises: A bottom plate, wherein an air flow channel is provided on the bottom plate; A plurality of airflow acceleration components are arranged on the bottom plate, the airflow acceleration components include a main body, a first cavity and a second cavity arranged in the main body, an intermediate cavity arranged between the first cavity and the second cavity, and an airflow acceleration member arranged in the first cavity and the second cavity, the first cavity and the second cavity are arranged on both sides of the main body, respectively, the main body is provided with air inlet ends located on both sides and an air outlet end located in the middle, the air inlet ends located on both sides are connected to the first cavity and the second cavity respectively, the air outlet end located in the middle is connected to the intermediate cavity, the main body is further provided with a first channel and a second channel, the first cavity is connected to the intermediate cavity through the first channel, the second cavity is connected to the intermediate cavity through the second channel, and the airflow channel is connected to the air inlet end; A mounting plate, disposed on an end of the airflow acceleration component away from the bottom plate, a first chamber is formed between the mounting plate and the airflow acceleration component, and the air outlet is connected to the first chamber; and A plurality of lamp beads, wherein the plurality of lamp beads are arranged on the mounting plate; Among them, the gas enters the airflow acceleration component through the airflow channel on the bottom plate, and the airflow drives the airflow acceleration component to work to pressurize and accelerate the airflow, and then enters the first chamber to lift the mounting plate, so that the lamp beads on the mounting plate vibrate to gradually complete the installation of the lamp beads.

2. The light board according to claim 1, characterized in that: The airflow acceleration component is a turbine structure, and the airflow acceleration component further includes two first baffles and a second baffle, wherein the first baffle is arranged between the air inlet end and the turbine structure, and the second baffle is arranged between the air outlet end and the turbine structure; Among them, the gas enters the air inlet end and the first partition from the air flow channel to drive the turbine structure to rotate, and the turbine structure pressurizes and accelerates the gas in the air flow acceleration component. The gas enters the first chamber from the air outlet end to lift the mounting plate.

3. The light board according to claim 2, characterized in that: The turbine structures located on both sides of the air outlet are symmetrically arranged.

4. The light board according to claim 1, characterized in that: The mounting plate is also provided with a limiting member, one end of which is connected to the mounting plate, and the other end of which is connected to the airflow acceleration component; When the mounting plate is lifted up, the limiting member generates elastic deformation to limit the position of the mounting plate.

5. The light board according to claim 1, characterized in that: It also includes a blocking component, which is arranged on the bottom plate and located at the periphery of the bottom plate, and includes a fixed part, a driving member and a moving member, the fixed part is arranged on the bottom plate, the driving member is arranged in the fixed part, one end of the moving member extends into the fixed part and is drivingly connected to the driving member, and the other end extends out of the fixed part, an air inlet channel is arranged on the fixed part, the air inlet end of the air inlet channel is connected to the air flow channel of the bottom plate, and the air outlet end of the air inlet channel is arranged corresponding to the driving member, so that the gas at the air outlet end of the air inlet channel drives the driving member to rotate; When the driving member rotates, the moving member moves in a direction away from or close to the base plate.

6. The light board according to claim 5, characterized in that: An air nozzle is also provided on the air outlet end of the air inlet channel, and the air nozzle limits the gas in the air inlet channel to flow out in the direction of the driving member, so as to drive the driving member to rotate.

7. The light board according to claim 5, characterized in that: The driving member is a gear, and the moving member is provided with a rack matched with the gear. The gear is meshed with the rack. When the gear rotates, the moving member is driven to move in a direction away from or close to the bottom plate.

8. The light board according to claim 5, characterized in that: The blocking assembly also includes a limit spring, which is arranged between the moving part and the fixed part. One end of the limit spring is connected to the moving part, and the other end is connected to the fixed part. When the moving part moves in a direction away from the bottom plate, the limit spring undergoes elastic deformation.

9. The light board according to claim 1, characterized in that: The mounting plate includes a circuit layer and an electromagnetic layer. The lamp bead is provided with a positioning magnet, a lamp bead circuit board and pins arranged on the lamp bead circuit board. The positioning magnet and the electromagnetic layer are magnetically attracted to each other. After the lamp bead is installed on the mounting plate, the pins of the lamp bead are connected to the circuit layer so that the circuit layer supplies power to the lamp bead.

10. A display device, characterized in that: It comprises a driving circuit and a display panel, wherein the driving circuit drives the display panel to operate, and the display panel comprises a glass substrate and a light board according to any one of claims 1 to 9, wherein the glass substrate is arranged on the light board.

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