Lamp panel and display equipment

Abstract

The embodiment of the invention provides a lamp panel and display equipment, and the lamp panel comprises a base which is provided with a flow channel for fluid circulation; the vibration mechanism comprises a plurality of vibration units arranged on the base in an array mode, each vibration unit comprises a fixing part and a vibration part, the fixing parts are connected with the base, the vibration parts are rotationally connected with the fixing parts, and the vibration parts are used for driving light-emitting units to vibrate; cavities communicating with the flow channels are further formed in the vibration units, and the cavities in the vibration units arranged side by side in the first direction communicate with one another. The driving mechanism is arranged on the side, away from the vibration unit, of the base, and the driving mechanism is used for driving fluid in the flow channel and the cavity to flow in one direction and driving the vibration part to vibrate so that the light-emitting unit can be positioned and fixed to the base. According to the lamp panel and the display equipment provided by the embodiment of the invention, the vibration part drives the light-emitting unit to vibrate, so that the light-emitting unit can be transferred and mounted in a huge amount, and the mounting efficiency is greatly improved.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates to a light board and a display device. Background Art

[0002] With the rapid development of display technology, Mini-LED display technology has emerged and become a new display technology. Mini-LED displays are composed of hundreds of thousands or even millions of micron-sized RGB light-emitting chips. After the RGB chips are prepared, they need to be transferred to the corresponding light boards. Due to the large number, mass transfer has become a difficulty restricting Mini-LED displays, and it is even more complicated for ultra-large display devices.

[0003] The main methods of mass transfer include elastic stamp, fluid self-assembly, precise pick-up and release, and laser release. The elastic stamp completes chip pick-up and release by adjusting the adhesive force between the elastic stamp and the chip interface. This process requires precise control of the moving speed and angle of the elastic stamp, which is difficult to control, and requires the chip carrier to be extremely flat to avoid gaps between the elastic stamp and the chip, which reduces the chip transfer efficiency. Fluid self-assembly places the chip and the receiving substrate in a container filled with fluid, drives the chip to move through fluid force, and transfers it to the receiving position. This transfer method requires special treatment of the chip and the receiving substrate to form structural complementarity. Precise pick-up and release are divided into electrostatic force, electromagnetic force, swing arm type, and acupuncture type according to the different forces. Among them, electrostatic force and electromagnetic force use the transfer head to carry static electricity or magnetism to grab the chip, and remove the static electricity or magnetism after reaching the specified position to complete the chip release. Both methods require special treatment of the chip, which increases the risk of chip damage. Laser release irradiates the peeling layer with laser, and photothermal or photochemical reaction occurs on the surface of the peeling layer, causing the chip to peel off to the receiving substrate.

[0004] However, the above-mentioned mass transfer method may damage a large number of RGB light-emitting chips during the installation process or may not be installed properly, resulting in low installation efficiency. Summary of the invention

[0005] In view of this, the embodiments of the present application provide a light board and a display device to solve the technical problem of low installation efficiency of existing light-emitting chips.

[0006] In a first aspect, an embodiment of the present application provides a light board, comprising:

[0007] A base is provided with a flow channel for fluid circulation;

[0008] A vibration mechanism, comprising a plurality of vibration units arranged in an array on the base, wherein the vibration unit comprises a fixed portion and a vibration portion, wherein the fixed portion is connected to the base, the vibration portion is rotatably connected to the fixed portion, and the vibration portion is used to drive the light-emitting unit to vibrate, and a cavity connected to the flow channel is further provided inside the vibration unit, and the cavities in the vibration units arranged side by side along the first direction are connected to each other;

[0009] The driving mechanism is arranged on a side of the base away from the vibration unit, and is used to drive the fluid in the flow channel and the cavity to flow unidirectionally, thereby driving the vibration part to vibrate, so that the light-emitting unit is positioned and fixed on the base.

[0010] In some embodiments, a supporting unit is further provided on the base, and the supporting unit is located above the vibration mechanism, and the supporting unit is used to support and position and fix the light-emitting unit.

[0011] In some embodiments, the vibration unit further includes a first connection portion and a second connection portion located in the cavity, one end of the first connection portion is connected to the fixed portion, and the other end of the first connection portion is rotatably connected to the vibration portion;

[0012] Two ends of the second connecting portion are respectively connected to the fixing portion and the vibrating portion through elastic members;

[0013] When the fluid enters the cavity from the flow channel, the fluid causes the elastic parts at both ends of the second connecting part to deform, causing the vibration part to vibrate with the first connecting part as the axis, thereby driving the light-emitting unit located on the supporting unit to vibrate and then be positioned and fixed with the supporting unit.

[0014] In some embodiments, the first connecting portion is located in the middle of the vibrating portion and the fixing portion.

[0015] In some embodiments, a plurality of the second connection parts are provided, and the plurality of the second connection parts are evenly distributed in the cavity.

[0016] In some embodiments, the cavity is formed between the fixing part, the vibrating part and the first connecting part, and the cavity includes an inlet and an outlet, and elastic connecting members are provided at the inlet and the outlet;

[0017] The width of the inlet and the width of the outlet are smaller than the width of the flow channel;

[0018] The sizes of the inlet and the outlet are adjusted by deformation of the elastic connecting member.

[0019] In some embodiments, a power generation unit is further provided on the vibration part, and the power generation unit is connected to the driving mechanism, and the power generation unit is used to provide power to the driving mechanism.

[0020] In some embodiments, a barrier unit is movably mounted on the side of the base, and the barrier unit is used to prevent the light-emitting unit from falling out of the base.

[0021] In some embodiments, a lifting unit for driving the enclosure unit to rise is also installed on the base, and the lifting unit includes:

[0022] A supercharger is installed in the base, and the supercharger is connected to the flow channel;

[0023] An injection head connected to the supercharger, wherein an injection channel is provided in the injection head;

[0024] When the fluid in the flow channel enters the supercharger for pressurization, it is ejected through the injection channel to lift the enclosure unit.

[0025] In some embodiments, the driving mechanism comprises:

[0026] A fan is installed on the base, and the fan is used to drive the fluid to flow in the flow channel and the cavity.

[0027] In some embodiments, the driving structure further includes a one-way valve installed in the flow channel, and the one-way valve is used to allow the fluid in the flow channel and the cavity to flow in one direction.

[0028] In a second aspect, an embodiment of the present application provides a display device, including:

[0029] The light board according to the first aspect;

[0030] a light emitting chip, located above the vibration unit; and

[0031] The packaging layer is arranged on a side of the light emitting chip away from the vibration unit.

[0032] In some embodiments, a functional layer is further provided between the light emitting chip and the packaging layer, and the functional layer includes a polarizer and a filter layer.

[0033] The lamp board and display device provided in the embodiments of the present application drive the fluid in the flow channel and the cavity to flow unidirectionally through a driving mechanism, thereby driving the vibration part to vibrate, and then driving the light-emitting chip located above the vibration part to vibrate, so that the light-emitting unit is positioned and fixed on the base. The vibration units arranged in an array can install a huge number of light-emitting units, and the light board after installation is part of the display device, which can greatly improve the installation efficiency of the display device; further, the present application adopts a small-amplitude vibration method to achieve the positioning and fixation of the light-emitting unit, which is different from the prior art that uses blowing and large-amplitude vibration to adjust the light-emitting chip into the installation groove. In the embodiments of the present application, the fluid is driven by a driving mechanism to vibrate the vibration part, and the vibration method is relatively milder and will not cause damage to the light-emitting unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 is a schematic diagram of the structure of a light board provided in an embodiment of the present application;

[0036] Figure 2 yes Figure 1 A schematic diagram of the structure of the support unit of the central light panel;

[0037] Figure 3 yes Figure 1 A schematic diagram of the structure of the vibration unit of the middle lamp board;

[0038] Figure 4 is a schematic structural diagram of a light board in a working state provided by an embodiment of the present application;

[0039] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0040] Figure 6 is a schematic diagram of the structure of a lifting unit in a lamp panel provided in an embodiment of the present application;

[0041] Figure 7 is a schematic structural diagram of a light-emitting unit in a display device provided in an embodiment of the present application;

[0042] Figure 8 It is a structural schematic diagram of the light-emitting unit in the display device provided by the embodiment of the present application during the installation process through the light board;

[0043] Fig. 9It is a structural schematic diagram after the light-emitting unit in the display device provided in the embodiment of the present application is installed through the light board;

[0044] Fig.10 yes Fig. 9 The enlarged view of point B in the middle;

[0045] Fig.11 is a circuit diagram of a power generation unit of a light panel provided in an embodiment of the present application;

[0046] Fig.12 It is a schematic diagram of the structure of the display device provided in an embodiment of the present application.

[0047] Among them, the figure numbers are:

[0048] 10. base; 100. flow channel; 11. locking buckle;

[0049] 20. Vibration unit; 200. Cavity; 201. Inlet; 202. Outlet; 21. Fixing part; 22. Vibration part; 23. First connection part; 24. Second connection part; 25. Elastic connection member; 26. Elastic member;

[0050] 30. Driving mechanism; 31. Fan; 32. One-way valve;

[0051] 40. Support unit; 41. Circuit layer; 42. Circuit flat layer; 43. Metal layer;

[0052] 50, power generation unit; 51, stator; 52, rotor; 53, wire; 500, processing circuit;

[0053] 60. enclosure unit; 61. guide member;

[0054] 70. lifting unit; 71. supercharger; 72. injection head; 700. injection channel;

[0055] 80, light-emitting unit; 81, phosphor; 82, reflective cup; 83, wireless coil layer; 84, electromagnetic layer; 85, protective layer; 86, light-emitting chip;

[0056] 90, encapsulation layer; 900, functional layer; 901, polarizer; 902, filter; 903, thin film transistor. DETAILED DESCRIPTION

[0057] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the embodiments of the present application.

[0058] It should also be understood that the term “and / or” used in the description of the embodiments of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0061] In addition, in the description of the embodiments of the present application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0062] References to "some embodiments" or "some embodiments" etc. described in the specification of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the statements "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in the different parts of this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" refers to two or more.

[0063] TFT (Thin Film Transistor);

[0064] OLED (Organic Light-Emitting Diode);

[0065] LED (Light-Emitting Diode, light-emitting semiconductor).

[0066] A first aspect of the present application provides a light board, such as Figure 1 , Figure 8 and Fig. 9 As shown, it includes a base 10, a vibration mechanism and a driving mechanism 30;

[0067] The base 10 is provided with a flow channel 100 for fluid circulation;

[0068] The vibration mechanism includes a plurality of vibration units 20 arranged in an array on the base 10, the vibration unit 20 includes a fixed portion 21 and a vibration portion 22, the fixed portion 21 is connected to the base 10, the vibration portion 22 is rotatably connected to the fixed portion 21, the vibration portion 22 is used to drive the light-emitting unit 80 to vibrate, and a cavity 200 connected to the flow channel 100 is further provided inside the vibration unit 20, and each cavity 200 in the vibration unit 20 arranged side by side along the first direction is connected to each other;

[0069] The driving mechanism 30 is disposed on a side of the base 10 away from the vibration unit 20 . The driving mechanism 30 is used to drive the fluid in the flow channel 100 and the cavity 200 to flow unidirectionally, driving the vibration part 22 to vibrate, so that the light emitting unit 80 is positioned and fixed on the base 10 .

[0070] The lamp board provided in the embodiment of the present application drives the fluid in the flow channel 100 and the cavity 200 to flow unidirectionally through the driving mechanism 30, thereby driving the vibration part 22 to vibrate, and then driving the light-emitting chip 86 located above the vibration part 22 to vibrate, so that the light-emitting unit 80 is positioned and fixed on the base 10. The array-arranged vibration units 20 can install a huge number of light-emitting units 80, and the lamp board after installation is part of the display device, which can greatly improve the installation efficiency of the display device; further, the present application adopts a small vibration method to achieve the positioning and fixation of the light-emitting unit 80, which is different from the prior art that uses blowing and large-amplitude vibration to adjust the light-emitting chip 86 into the installation groove. In the embodiment of the present application, the driving mechanism 30 drives the fluid to vibrate the vibration part 22, and the vibration method is relatively milder and will not cause damage to the light-emitting unit 80.

[0071] In applications, such as Figure 1 As shown, Figure 1It is a cross-sectional view of the lamp panel. The middle of the base 10 is concave inward, and the peripheral side of the base 10 is higher than the middle of the base 10 and a baffle is formed on the peripheral side. After installation, the baffle becomes the frame of the display device. In application, the drive mechanism 30 is located in the middle of the base 10. This arrangement makes the center of the back of the final display device protrude outward, which is relatively more beautiful. The drive mechanism 30 divides the flow channel 100 into two, and the drive mechanism 30 drives the fluid to flow unidirectionally in the flow channel 100 and the cavity 200. The fluid includes but is not limited to air, inert gas, etc.

[0072] In applications, such as Figure 1 As shown, the vibration unit 20 array is arranged on the base 10: that is, a plurality of vibration units 20 are arranged side by side along the first direction and the second direction respectively. The first direction and the second direction are the length and width directions of the light board (or display device), and the third direction is the thickness direction of the light board (or display device). The cavities 200 in the vibration units 20 arranged side by side along the first direction are interconnected, which means that the vibration units 20 arranged side by side along the length or width direction of the light board, the cavities 200 inside thereof are interconnected, and then connected to the flow channel 100, so that the fluid can flow in the cavity 200 of the flow channel 100, thereby providing driving force to the vibration part 22, so that the vibration part 22 drives the light-emitting unit 80 to vibrate, so that the light-emitting unit 80 is positioned and fixed to the base 10, and the mass transfer and installation of the light-emitting unit 80 is realized.

[0073] In some embodiments, Figure 1 and Figure 4 As shown, the driving mechanism 30 includes a fan 31, which is installed on the base 10, and the fan 31 is used to drive the fluid to flow in the flow channel 100 and the cavity 200. In some embodiments, the driving mechanism 30 also includes a one-way valve 32, which is installed in the flow channel 100, and the one-way valve 32 is used to make the fluid in the flow channel 100 and the cavity 200 flow in one direction.

[0074] In some embodiments, Figure 1 As shown, a support unit 40 is also provided on the base 10. The support unit 40 is located above the vibration mechanism. The support unit 40 is used to support and position and fix the light-emitting unit 80. In application, the support unit 40 is located above the vibration mechanism in the following cases: first, there is a gap between the support unit 40 and the vibration mechanism, which provides space for the vibration unit 20 to vibrate, thereby facilitating the light-emitting unit 80 located on the support unit 40 to vibrate, so that the light-emitting unit 80 is positioned and fixed to the support unit; second, the support unit 40 is in direct contact with the vibration mechanism, and such a setting is conducive to improving the stability of the light-emitting unit 80 after installation.

[0075] In applications, such as Figure 1and Figure 2 As shown, the support unit 40 includes a metal layer 43, a flat layer and a circuit layer 41 stacked in sequence, wherein the metal layer 43 is located on a side close to the vibration unit 20, and the circuit layer 41 is located on a side away from the vibration unit 20 (i.e., a side close to the light-emitting unit 80). In the process of mass transfer installation of light, the light-emitting unit 80 is directly in contact with the circuit layer 41, and the installation process also connects the light-emitting unit 80 to the circuit layer 41 by vibrating the light-emitting unit 80.

[0076] Among them, the metal layer 43 is mainly used to form a conductive path, that is, a wiring or interconnection structure, which is a key part of the TFT (thin film transistor). The metal layer 43 may include the following parts: 1. The gate metal layer 43 is used to form the gate of the TFT, which controls whether the current flows through the channel between the source and the drain. 2. The data line and the scan line are used to transmit the signal to the TFT of each pixel. The data line usually carries brightness information, while the scan line selects which row of pixels should be activated. 3. The power line provides the necessary voltage for the TFT and other components. In some embodiments, the metal layer 43 is generally made of materials such as aluminum, copper, molybdenum, titanium, etc., and alloys are sometimes used to improve performance or reduce costs. To ensure fast and accurate signal transmission. The main purpose of the flat layer is to make the surface smoother, thereby improving the quality and reliability of subsequent processes. The specific functions of the flat layer include: reducing surface roughness and stress buffering, which can relieve the stress caused by the difference in thermal expansion coefficients between different material layers and prevent cracks. It also has the function of insulation isolation. The flat layer is usually a dielectric material, which can provide good insulation between different metal layers 43 to prevent short circuits. For OLED displays, the flat layer can also help evenly distribute the organic light-emitting materials to ensure that light can be emitted evenly. Common materials for the flat layer include polyimide, acrylic resin, siloxane, etc. These materials have good fluidity and hardness after curing, and can effectively fill the unevenness of the underlying structure. The circuit layer 41 refers to the whole including all electronic components and interconnection structures, which is the core part of realizing the display function. The circuit layer 41 mainly includes: integrated circuits for generating and processing electrical signals and converting them into a format suitable for display. In some embodiments, the circuit layer 41 may also include a power management circuit, a timing controller, a gamma correction circuit, etc., which work together to optimize image quality and system stability.

[0077] It should be noted that the vibration of the vibration part 22 drives the light-emitting unit 80 located on the support unit 40 to vibrate, so that the specific principle of positioning and fixing the light-emitting unit 80 with the support unit 40 is: when the light-emitting unit 80 needs to be transferred and installed in large quantities, the light-emitting unit 80 will be placed on the support unit 40, and the light-emitting unit 80 is stacked on the support unit 40 in a disordered manner; then the fluid located in the flow channel 100 and the cavity 200 is driven by the driving mechanism 30, and the fluid flow drives the vibration part 22 to vibrate, thereby driving the light-emitting unit 80 located on the support unit 40 to vibrate irregularly; until the positioning structure on the light-emitting unit 80 is connected to the support unit 40, the installation transfer of the light-emitting unit 80 is completed. The positioning structure on the light-emitting unit 80 includes but is not limited to magnetic parts, such as electromagnets, etc. It is adsorbed with the metal or magnetic part on the support unit by magnetic attraction. Thereby completing the positioning and fixing of the light-emitting unit 80, ensuring the stability of the subsequent installation of the light-emitting unit 80, and ensuring the display effect.

[0078] In some embodiments, Figure 1 and Figure 3 As shown, the vibration unit 20 further includes a first connection portion 23 and a second connection portion 24; the first connection portion 23 and the second connection portion 24 are both located in the cavity 200, one end of the first connection portion 23 is connected to the fixed portion 21, and the other end of the first connection portion 23 is rotatably connected to the vibration portion 22;

[0079] Two ends of the second connecting portion 24 are connected to the fixing portion 21 and the vibrating portion 22 respectively through elastic members 26;

[0080] When the fluid enters the cavity 200 from the flow channel 100, the fluid causes the elastic members 26 at both ends of the second connection part 24 to deform, causing the vibration part 22 to vibrate up and down with the first connection part 23 as the axis, thereby driving the light-emitting unit 80 located on the support unit 40 to vibrate and then be positioned and fixed to the support unit 40.

[0081] In application, the first connection part 23 is a connection column. One end of the connection column is fixed on the fixed part 21, and the other end of the connection column is hingedly connected to the vibration part 22, so that the two ends of the vibration part 22 can rotate up and down with the hinge of the connection column as the axis, and the two ends of the vibrating vibration part 22 exert force on the support unit 40, so that the light-emitting unit 80 located on the support unit 40 vibrates until the positioning structure on the light-emitting unit 80 is positioned and fixed to the support unit 40. To describe it in a more vivid way, the two ends of the vibration part 22 are like drumsticks, and the entire support unit 40 is like a drum. When the drumstick rotates around the first connection part 23, it strikes the support unit 40 to make it vibrate, thereby driving the light-emitting unit 80 located on the support unit 40 to vibrate.

[0082] In some embodiments, Figure 1 and Figure 3 As shown, the first connection part 23 is located in the middle of the vibration part 22 and the fixed part 21. In this way, the vibration part 22 can be vibrated along the first connection part 23 as the center line, and the left and right ends can vibrate, which is conducive to improving the efficiency of driving the vibration part 22 to vibrate.

[0083] In application, the second connecting part 24 is a connecting rod, and elastic members 26 are provided at both ends of the connecting rod, and the connecting rod is connected to the fixing part 21 and the vibrating part 22 through the elastic members 26. Such a configuration is to generate vortex-induced vibration when the fluid enters the cavity 200, so that the second connecting part 24 vibrates and drives the vibrating part 22 to vibrate up and down.

[0084] In some embodiments, Figure 3 As shown, the vibration unit 20 includes a fixed part 21, a vibrating part 22, a first connecting part 23 and a plurality of second connecting parts 24; the vibrating part 22 is located on a side of the fixed part 21 away from the base 10, a cavity 200 is formed between the fixed part 21 and the vibrating part 22, an entrance 201 and an exit 202 are respectively provided at the front and rear ends of the cavity 200, and elastic connecting members 25 are provided at the entrance 201 and the exit 202 to connect the fixed part 21 and the vibrating part 22; one end of the first connecting part 23 is connected to the middle part of the fixed part 21, and the other end of the first connecting part 23 is hingedly connected to the vibrating part 22, and a plurality of second connecting parts 24 are evenly distributed in the cavity 200, and elastic members 26 are provided at both ends of the second connecting part 24 to connect with the fixed part 21 and the vibrating part 22. The specific principle of causing the vibration part 22 to vibrate is as follows: when the driving mechanism 30 drives the fluid so that the flow channel 100 enters the cavity 200, the fluid flow rate is increased (specifically because the entrance 201 of the cavity 200 is relatively narrow, narrower than the flow channel 100 and the cavity 200). If the flow rate is greater than 10m / s, the Rayleigh coefficient becomes larger and reaches a turbulent state, and the second connecting part 24 (cylinder) generates vortex-induced vibration under the action of the flow field, thereby driving the vibration part 22 to vibrate; in addition, the vibration amplitude and even the resonance state of the vibration part 22 can be adjusted by changing the Young's modulus of the rod column, the spring elastic constant K value and the fluid flow state, thereby achieving rapid installation.

[0085] In application, the second connection portion 24 can be made of a material with a relatively small Young's modulus, including rubber, low-density polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon, titanium alloy, etc. This is beneficial to improving the efficiency of vortex-induced vibration, thereby improving the installation efficiency of the light-emitting unit 80 .

[0086] In some embodiments, Figure 3As shown, a cavity 200 is formed between the fixing portion 21, the vibration portion 22 and the first connection portion 23, and the cavity 200 includes an inlet 201 and an outlet 202, and elastic connecting members 25 are provided at the inlet 201 and the outlet 202;

[0087] The sizes of the inlet 201 and the outlet 202 are adjusted by deforming the elastic connecting member 25. In this way, the flow rate of the fluid entering the cavity 200 can be adjusted to improve the efficiency of vortex-induced vibration.

[0088] In application, the width of the inlet 201 and the width of the outlet 202 are smaller than the width of the flow channel 100. In this way, when the fluid enters the cavity 200 from the flow channel 100, the flow rate will be greatly improved.

[0089] In application, the elastic member 26 and the elastic connecting member 25 are springs. Because the spring is formed by bending and has a small contact surface with the air, it is helpful to reduce the contact area between the elastic member 26 and the elastic connecting member 25 and the fluid, so that it will not cause too much blocking effect during the flow of the fluid, so that the conversion efficiency of the vortex-induced vibration is effectively improved.

[0090] In some embodiments, Figure 1 and Figure 3 As shown, the vibration part 22 is also provided with a power generation unit 50, which is connected to the driving mechanism 30 and is used to provide power to the driving mechanism 30. In a specific embodiment, the power generation unit 50 is located at the connection between the first connecting part 23 and the vibration part 22, and the power generation unit 50 collects the alternating current generated by the left and right rotation around the axis during the vibration process, and increases it to work for the driving mechanism 30, thereby maximizing energy utilization.

[0091] In application, the power generation unit 50 includes a rotor 52, a stator 51, a wire 53, and a processing circuit 500. The rotor 52 is disposed at the hinge between the first connection portion 23 and the vibration portion 22, the stator 51 is disposed around the rotor 52, the processing circuit 500 is disposed on the base 10, and the stator 51 is connected to the processing circuit 500 through the wire 53. In some embodiments, a power generation unit 50 is disposed on each vibration unit 20, and by converting the rotational vibration of multiple vibration units 20 into electricity, filtering and amplifying it through the processing circuit 500, it can effectively provide power to the driving mechanism 30, thereby maximizing energy utilization.

[0092] The basic working principle of the stator 51 and the rotor 52 for power generation is as follows:

[0093] The rotor 52 is the rotating part of the generator, usually composed of one or more permanent magnets or electromagnetic coils, which are passed through direct current to generate a strong magnetic field. The stator 51 is the fixed part, usually containing multiple conductors wound into coils. These coils are usually three-phase configurations for generating three-phase alternating current. When the rotor 52 rotates, its magnetic field passes through the stator 51 coils. Due to the relative motion, the magnetic flux in the stator 51 coils changes, thereby generating an induced electromotive force in the stator 51 coils according to Faraday's law of electromagnetic induction. When the rotor 52 rotates, the magnetic field it generates periodically passes through the stator 51 coils. Because the direction and intensity of the magnetic field change with the position of the rotor 52, the magnetic flux passing through the stator 51 coils is also constantly changing. According to Faraday's law of electromagnetic induction, the change in magnetic flux generates an induced electromotive force in the stator 51 coils. This electromotive force drives electrons to move in the stator 51 coils, thereby forming an electric current. Since the rotor 52 rotates continuously, the change in magnetic flux is continuous and periodic, so the induced electromotive force generated is also periodic, which forms alternating current.

[0094] In application, the circuit diagram of the processing circuit 500 is as follows Fig.11 As shown, the alternating current generated by the parts where each vibration part 22 and the first connecting part 23 rotate is collected through the line, and an alternating voltage is generated at the input end of the circuit. The output voltage is increased by the transformer winding ratio, and the output voltage is rectified by capacitors C1, C2 and transformers D1, D2 to process the alternating current into a direct current. The capacitors C1 and C2 are discharged at the same time, which can further amplify the driving current; then, the resistor R1, the transistor T1, and the capacitor C3 devices are used for filtering, and the current can be further amplified by using the transistor characteristics to provide sufficient power supply to the driving mechanism 30.

[0095] In some embodiments, Figure 4 and Figure 5 As shown, a barrier unit 60 is movably mounted on the side of the base 10, and the barrier unit 60 is used to prevent the light-emitting unit 80 from falling outside the base 10. In this way, the light-emitting unit 80 can be effectively prevented from falling and causing losses during the installation process.

[0096] In some embodiments, Figures 4 to 6As shown, a lifting unit 70 for driving the enclosure unit 60 to rise is also installed on the base 10. In application, the lifting unit 70 includes a supercharger 71 and a spray head 72; the supercharger 71 is installed in the base 10, and the supercharger 71 is connected to the flow channel 100; the spray head 72 is connected to the supercharger 71, and a spray channel 700 is provided in the spray head 72; when the fluid in the flow channel 100 enters the supercharger 71 and is pressurized, it is sprayed out through the spray channel 700 to lift the enclosure unit 60. In this way, the lifting unit 70 and the vibration unit 20 both work by driving the fluid flow through the driving mechanism 30. In other words, before installing the light-emitting unit 80, the lifting unit 70 pressurizes the fluid and lifts the enclosure unit 60 through the spray channel 700, thereby providing the light-emitting unit 80 with a higher physical protection around it to prevent the light-emitting unit 80 from falling during the vibration process. During the installation of the light emitting unit 80 , the vibration unit 20 generates vortex-induced vibration through the fluid driven by the driving mechanism 30 , thereby driving the light emitting unit 80 to vibrate and achieve positioning and fixing.

[0097] In application, the enclosure unit 60 can be movably installed on the side of the base 10. A guide member 61 is provided on the supercharger 71, and the enclosure unit 60 and the guide member 61 are slidably matched. When the enclosure unit 60 needs to be lifted, the fluid is driven into the supercharger 71 through the driving mechanism 30, and the fluid is sprayed toward the enclosure unit 60 after being pressurized, so as to lift the enclosure unit 60; after the installation is completed, the supercharger 71 no longer pressurizes, and the gas principle returns and refluxes into the flow channel 100 to be used as a heat dissipation medium. The guide member 61 can specifically be a slide rail and a slider, or a pulley and a slide groove. As long as the enclosure unit 60 can be movable on the side of the base 10, it will be sufficient. In some embodiments, after the installation of the light-emitting unit 80 is completed, when the lifting unit 70 is no longer needed to lift the enclosure unit 60, the enclosure unit 60 needs to be limited, and a locking buckle 11 is also provided on the outside of the base 10, and the enclosure unit 60 is locked with the base 10 through the locking buckle 11.

[0098] In some embodiments, the light-emitting unit 80 refers to a light-emitting diode used in display technology and a light-emitting unit 80 in an organic light-emitting diode, and has a variety of different structural types, including but not limited to a traditional structure, a vertical structure, a thin film structure, etc. in a light-emitting diode, or a small molecule, a polymer, a top emission type, a bottom emission type, a stacked type in an organic light-emitting diode; or a Micro-LED structure, a quantum dot structure, etc. The embodiment of the present application is described by taking a light-emitting unit 80 with a quantum dot structure as an example. Figure 7As shown, the light-emitting unit 80 includes a protective layer 85, a reflective cup 82 and a phosphor 81 which are stacked in sequence, and a light-emitting chip 86 is also provided at the bottom of the reflective cup 82. In application, the design purpose of the reflective cup 82 is to concentrate the light emitted by the light-emitting chip 86 as much as possible to the front, reduce side scattering, and thus improve the light output efficiency. It can also play a role in physical protection, preventing the external environment from damaging the light-emitting chip 86. The reflective cup 82 material has good thermal conductivity, which helps to conduct heat away from the light-emitting chip 86 and improve the heat dissipation effect. Figure 7 As shown, the reflective cup 82 is a bowl-shaped or conical structure, and the inner surface is coated with a high reflectivity material (such as aluminum or silver). The light-emitting chip 86 is located at the bottom center of the reflective cup 82 to ensure that the emitted light can be collected and guided by the reflective cup 82 to the maximum extent. It is the element that actually generates light and is made of semiconductor materials (such as gallium nitride for blue light LEDs). Depending on the design, the light-emitting chip 86 can directly emit visible light (such as blue light, green light) or emit ultraviolet light to excite the phosphor 81. The phosphor 81 is usually coated on the inner surface of the reflective cup 82 or directly covered on the light-emitting chip 86 to form a thin layer of phosphor 81 coating. For blue light LEDs, the phosphor 81 can absorb part of the blue light and re-emit light of other wavelengths (such as yellow light), and generate white light by mixing blue light and yellow light. This method is widely used in the manufacture of white light LEDs. By selecting different combinations of phosphors 81, the color temperature and color rendering index of the output light can be adjusted to meet the needs of various lighting and display applications. The phosphor layer 81 can help to homogenize the light, reduce light spots and shadows, and make the light output softer and smoother. The protective layer 85 usually covers the outermost side of the reflective cup 82 and the phosphor layer 81 to form a sealed packaging structure. The protective layer 85 can prevent moisture and water from entering the interior, and prevent the phosphor 81 and the light-emitting chip 86 from becoming damp and failing. The material of the protective layer 85 has UV resistance, which can prevent the aging effect of ultraviolet rays on the phosphor 81 and other components. Provide additional physical protection to prevent damage to the light-emitting device from external impact and scratches.

[0099] In some embodiments, a positioning structure for positioning and fixing the light-emitting unit 80 and the support unit 40 is further provided between the protective layer 85 and the reflective cup 82, and the positioning structure includes an electromagnetic layer 84 and a wireless coil layer 83. When the light-emitting unit 80 and the support unit 40 are aligned, the wireless coil layer 83 in the light-emitting unit 80 is energized so that the electromagnetic layer 84 generates magnetic force and conducts electricity, thereby adsorbing the metal layer 43 in the support unit 40 to achieve installation and fixation.

[0100] like Figure 8 , Fig. 9 as well as Fig.10 As shown, it is a schematic diagram showing the process of installing the light board on the light unit 80, such as Figure 8As shown, before the light-emitting unit 80 is installed, the locking buckle 11 on the outside of the base 10 is in an unlocked state. At this time, the driving mechanism 30 drives the fluid to flow, and the fluid enters the supercharger 71 for supercharging, thereby lifting the enclosure unit 60 to prevent the light-emitting unit 80 from falling outside the base 10 due to vibration during the subsequent installation process; during the installation of the light-emitting unit 80, the fluid enters the cavity 200 of the vibration unit 20, drives the vibration part 22 to vibrate, thereby knocking the support unit 40 to make the light-emitting unit 80 located on the support unit 40 vibrate, thereby achieving alignment and fixation;

[0101] like Fig. 9 and Fig.10 As shown, after the installation is completed, the enclosure unit 60 is pressed downward, and the locking buckle 11 on the outside of the base 10 locks the enclosure unit 60; the supercharger 71 stops working, and the gas returns to the flow channel 100 as a heat dissipation medium, and the electromagnetic layer 84 of the light-emitting unit 80 is magnetically fixed to the metal layer 43 in the support unit 40; the rotation generated by the vibration part 22 is collected by the power generation unit 50 and used to drive the mechanism 30 to drive the gas flow as a power source for subsequent heat dissipation, thereby effectively improving the energy utilization rate.

[0102] The embodiment of the present application further provides a display device, as shown in 12, comprising the light board, the light emitting chip 86 and the packaging layer 90 described in the first aspect;

[0103] The light emitting chip 86 is located above the vibration unit 20;

[0104] The packaging layer 90 is disposed on a side of the light emitting chip 86 away from the vibration unit 20 .

[0105] The display device provided in the embodiment of the present application has all the beneficial effects described in the first aspect because it has the lamp board described in the first aspect. The display device provided in the embodiment of the present application can solve the problem of mass transfer of the light-emitting units 8050, and the installation can be completed simultaneously using the heat dissipation device of the display device.

[0106] In some embodiments, Fig.12 As shown, a functional layer 900 is also provided between the encapsulation layer 90 and the light-emitting unit 80, and the functional layer 900 includes but is not limited to a polarizer 901, a filter 902 and a thin film transistor 903; the thin film transistor acts as a switch to control the brightness and color of each pixel. The lower polarizer 901 is placed below the thin film transistor 903. Its function is to convert the non-polarized light emitted by the reflected light (for certain types of OLEDs) into linear polarized light. Different colors are displayed through the corresponding filters 902 respectively. The upper polarizer 901 is installed on the top layer, covering the color filter 902. The upper polarizer 901 works with the lower polarizer 901 to ensure that only polarized light in a specific direction can pass through and eventually reach the viewer's eyes.

[0107] The light board and display device provided in the embodiment of the present application cleverly apply the heat dissipation device (i.e., fan 31) of the display device to the process of installing the light-emitting unit 80. Specifically, it includes:

[0108] Before installing the light-emitting unit 80, the fan 31 is used to drive the gas flow to raise the enclosure units 60 on both sides, so as to facilitate the subsequent installation of the light-emitting unit 80 and prevent the light-emitting unit 80 from vibrating and falling off;

[0109] When installing the light-emitting unit 80, the gas is continuously driven so that the second connecting portion 24 drives the vibration portion 22 to vibrate, thereby driving the light-emitting unit 80 to vibrate, thereby completing the positioning and fixing of the light-emitting unit 80;

[0110] After the light-emitting unit 80 is installed, the fluid in the flow channel 100 and the cavity 200 is used as a heat dissipation medium to dissipate heat for the display device.

[0111] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0112] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the embodiments of the present application, and should all be included in the protection scope of the embodiments of the present application.

Claims

1. A light board, characterized in that: include: A base is provided with a flow channel for fluid circulation; A vibration mechanism, comprising a plurality of vibration units arranged in an array on the base, wherein the vibration unit comprises a fixed portion and a vibration portion, wherein the fixed portion is connected to the base, the vibration portion is rotatably connected to the fixed portion, and the vibration portion is used to drive the light-emitting unit to vibrate, and a cavity connected to the flow channel is further provided inside the vibration unit, and the cavities in the vibration units arranged side by side along the first direction are connected to each other; The driving mechanism is arranged on a side of the base away from the vibration unit, and is used to drive the fluid in the flow channel and the cavity to flow unidirectionally, thereby driving the vibration part to vibrate, so that the light-emitting unit is positioned and fixed on the base.

2. The light board according to claim 1, characterized in that: A supporting unit is also provided on the base, and the supporting unit is located above the vibration mechanism. The supporting unit is used to support and position and fix with the light-emitting unit.

3. The light board according to claim 2, characterized in that: The vibration unit further includes a first connection portion and a second connection portion located in the cavity, one end of the first connection portion is connected to the fixing portion, and the other end of the first connection portion is rotatably connected to the vibration portion; Two ends of the second connecting portion are respectively connected to the fixing portion and the vibrating portion through elastic members; Among them, when the fluid enters the cavity from the flow channel, the fluid causes the elastic parts at both ends of the second connecting part to deform, so that the vibration part vibrates with the first connecting part as the axis, so as to drive the light-emitting unit located on the supporting unit to vibrate and then be positioned and fixed with the supporting unit.

4. The light board according to claim 3, characterized in that: The first connecting portion is located in the middle of the vibrating portion and the fixing portion; And / or, a plurality of second connection parts are provided, and the plurality of second connection parts are evenly distributed in the cavity.

5. The light board according to claim 3, characterized in that: The cavity is formed between the fixing part, the vibrating part and the first connecting part, and the cavity includes an inlet and an outlet, and elastic connecting members are provided at the inlet and the outlet; The width of the inlet and the width of the outlet are smaller than the width of the flow channel; The sizes of the inlet and the outlet are adjusted by deformation of the elastic connecting member.

6. The light board according to claim 1, characterized in that: The vibration part is also provided with a power generation unit, which is connected to the driving mechanism and is used to provide power to the driving mechanism.

7. The light panel according to any one of claims 1 to 6, characterized in that: A barrier unit is movably mounted on the side of the base, and the barrier unit is used to prevent the light-emitting unit from falling out of the base.

8. The light panel according to claim 7, characterized in that: The base is also provided with a lifting unit for driving the enclosure unit to rise, and the lifting unit comprises: A supercharger is installed in the base, and the supercharger is connected to the flow channel; An injection head connected to the supercharger, wherein an injection channel is provided in the injection head; When the fluid in the flow channel enters the supercharger for pressurization, it is ejected through the injection channel to lift the enclosure unit.

9. The light board according to claim 1, characterized in that: The driving mechanism comprises: A fan is installed on the base, and is used to drive the fluid to flow in the flow channel and the cavity; And / or, a one-way valve is installed in the flow channel, and the one-way valve is used to allow the fluid in the flow channel and the cavity to flow in one direction.

10. A display device, characterized in that: include: The light panel according to any one of claims 1 to 9; A light-emitting chip is located above the vibration unit; as well as The packaging layer is arranged on a side of the light emitting chip away from the vibration unit.

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