Lighting device for LED display unit and detection device

Abstract

The utility model belongs to the technical field of micro LED display screen correction and detection, and provides a lightening device and detection equipment of an LED display unit, the lightening device is used for lightening the LED display unit, and the lightening device of the LED display unit comprises a rack, a lightening control module, a transmitting module, a receiving module, a driving module, a fixed seat, a movement mechanism and a carrier carrying the LED display unit; the lightening control module and the transmitting module are mounted on the rack, and the lightening control module is electrically connected with the transmitting module; the receiving module and the driving module are installed on the carrier, the receiving module is electrically connected with the driving module, and the driving module is electrically connected with the LED display unit; the moving mechanism is connected with the fixing base and drives the carrier to move relative to the transmitting module, and when the distance between the receiving module and the transmitting module is smaller than or equal to the preset distance, the driving module lightens the LED display unit. The lighting process of the LED display unit is more convenient, and the working efficiency can be improved.

Description

Technical Field

[0001] The present application belongs to the field of micro LED display screen calibration and detection technology, and in particular, relates to a lighting device and detection equipment for an LED display unit. Background Art

[0002] Micro-LED (Micro Light Emitting Diode) display technology refers to the use of self-luminous micron-scale light-emitting diodes (Light Emitting Diode, referred to as LED) as light-emitting pixel units, which are assembled on a driving panel to form a high-density LED array. Micro-LED display units are also called Micro-LED chips, which are generally between 50-200μm in size, small in size, and highly integrated. Micro-LED display units can be referred to as LED display units.

[0003] The LED display unit needs to be calibrated for brightness and color or inspected for defects before leaving the factory, and these processes require that the LED display unit be lit.

[0004] In the related art, physical connectors are generally used for plug-in lighting. The connectors include a large number of probes. During use, the probes are easily damaged, which affects signal transmission. Therefore, the probes need to be replaced from time to time. This is not only inconvenient but also relatively costly. Utility Model Content

[0005] The purpose of the present application is to provide a lighting device and a detection device for an LED display unit, aiming to solve the technical problem in the prior art that the LED display unit uses a physical connector for plugging in during the lighting process, which is inconvenient.

[0006] The first object of the present application is to provide a lighting device for an LED display unit, the lighting device for the LED display unit comprising: a frame, a lighting control module, a transmitting module, a receiving module, a driving module, a fixing seat, a motion mechanism and a carrier carrying the LED display unit;

[0007] The lighting control module and the transmitting module are installed on the rack, and the lighting control module is electrically connected to the transmitting module;

[0008] The receiving module and the driving module are installed on the carrier, the receiving module is electrically connected to the driving module, and the driving module is also electrically connected to the LED display unit;

[0009] The motion mechanism is connected to the fixing seat, and the motion mechanism is used to drive the carrier to move relative to the transmitting module so that the receiving module is close to or away from the transmitting module;

[0010] When the distance between the receiving module and the transmitting module is less than or equal to a preset distance, the lighting control module is used to send a lighting control signal to the transmitting module, the transmitting module is used to establish a communication connection with the receiving module, and send the received lighting control signal to the receiving module, and the receiving module is used to send the lighting control signal to the driving module to light up the LED display unit.

[0011] In one embodiment, the motion mechanism includes a first motion mechanism and a second motion mechanism; the first motion mechanism is used to drive the carrier to move toward or away from the receiving module in a horizontal direction, and the second motion mechanism is used to drive the carrier to move toward or away from the receiving module in a vertical direction.

[0012] In one embodiment, the lighting device of the LED display unit further includes a limiting component, and the limiting component can limit the movement of the carrier in the horizontal direction so that the receiving module is limited to a preset position;

[0013] The second motion mechanism is specifically used to drive the carrier to move toward or away from the receiving module in a vertical direction when the receiving module is limited to the preset position.

[0014] In one embodiment, the limiting assembly includes a fixed plate and a stop structure, the fixed plate is installed under the first motion mechanism, the stop structure is movably connected to the fixed plate, and the stop structure can move upward in a vertical direction to block the carrier from moving in a horizontal direction, so that the receiving module is limited to a preset position.

[0015] In one embodiment, the stop structure is an elastic structure.

[0016] In one of the embodiments, at the preset position, the transmitting module and the receiving module are arranged opposite to each other and spaced apart.

[0017] The second object of the present application is to provide a detection device for an LED display unit, the detection device comprising at least one detection station, each of the detection stations comprising a bracket, an image acquisition device and a lighting device for an LED display unit as described in any one of the above items;

[0018] The bracket is connected to the fixing seat, and the image acquisition device is installed on the bracket.

[0019] In one of the embodiments, the image acquisition device is arranged above the LED display unit;

[0020] The image acquisition device is used to acquire images when the LED display unit is lit, so as to perform brightness and chromaticity correction or defect detection on the LED display unit.

[0021] In one of the embodiments, the detection equipment of the LED display unit includes a plurality of detection stations, and each of the detection stations is connected by a motion mechanism so that the LED display unit can flow between the detection stations.

[0022] In one of the embodiments, the detection device of the LED display unit further includes a base, and the fixing seat and the bracket are both connected to the base.

[0023] In one embodiment, a wheel assembly is connected to the bottom of the base, and the base can be moved by the wheel assembly.

[0024] The beneficial effects of the lighting device and detection equipment of the LED display unit of the present application are as follows: in the lighting device and detection equipment of the LED display unit, the transmitting module and the receiving module are communicated and connected by wireless communication induction, and the receiving module can move closer to or away from the transmitting module under the drive of the motion mechanism. When the distance between the receiving module and the transmitting module is less than the preset distance, the LED display unit is illuminated, thereby eliminating the need for probe plugging to perform the lighting work. The wireless transmission method makes the lighting process of the LED display unit by the driving module more convenient, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0026] Figure 1 It is a structural schematic diagram of a lighting device of an LED display unit provided in an embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of an exploded structure of a lighting device of an LED display unit connected to an LED display unit provided in an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the exploded structure of the connection between a frame, a lighting control module, a transmitting module, a receiving module, a driving module and a carrier in a lighting device of an LED display unit provided in an embodiment of the present application;

[0029] Figure 4It is a schematic diagram of the exploded structure of the connection between a frame, a lighting control module, a transmitting module, a receiving module, a driving module and a carrier and an LED display unit in a lighting device of an LED display unit provided in an embodiment of the present application;

[0030] Figure 5 This is a structural schematic diagram of a detection station in a detection device for an LED display unit provided in an embodiment of the present application;

[0031] Figure 6 It is a structural schematic diagram of a detection device for an LED display unit provided in an embodiment of the present application;

[0032] Figure 7 It is a principle block diagram of a lighting device of an LED display unit provided in an embodiment of the present application;

[0033] Figure 8 It is a logic control block diagram of a method for lighting an LED display unit provided in an embodiment of the present application.

[0034] Explanation of the reference numerals: 1000, detection equipment; 1100, detection station; 1110, lighting device; 1111, transmitting module; 1112, receiving module; 1113, driving module; 1114, carrier; 1115, fixed seat; 11151, guide rail structure; 1116, motion mechanism; 1116a, first motion mechanism; 1116b, second motion mechanism; 1117, limit assembly; 1117a, fixed plate; 1117b, stop structure; 1117c, limit seat; 1118, lighting control module; 1119, rack; 1120, display unit; 1130, image acquisition device; 1140, bracket; 1150, base; 1160, wheel assembly; 1170, leg; X, horizontal direction; Y, vertical direction. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "upward", "vertical", "horizontal", "bottom", "inside", "outside", "inner side", "outer side" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] LED testing refers to the adjustment of LED (Light Emitting Diode) display units, which may specifically include LED lamps or display screens, to ensure that the light or color they output meets the expected standards or requirements. LED testing may include LED calibration, which usually includes brightness and chromaticity calibration or defect detection, etc. The above testing items all require the LED display unit to be lit, which means that the LED display unit is connected to the power supply and emits light.

[0040] In the related art, LED display units are generally lit up by a physical connector for plug-in lighting. The connector includes a large number of probes. During use, the probes are easily damaged, which affects signal transmission. Therefore, the probes need to be replaced from time to time. This is not only inconvenient but also relatively costly. In addition, the LED display unit needs to be calibrated for brightness and color or detected for defects at different workstations. Each workstation needs to light up the LED display unit separately. The physical connector for plug-in lighting makes the connection process cumbersome, resulting in reduced work efficiency.

[0041] Therefore, in order to improve the convenience of the lighting process of the LED display unit 1120, the present application adopts a wireless sensing method, and installs a receiving module 1112 on a driving module 1113 used to be assembled and electrically connected to the LED display unit 1120, so that the receiving module 1112 can receive the control signal sent by the transmitting module 1111 through wireless communication, so that the driving module 1113 can power on and light up the LED display unit 1120 installed thereon, making the LED lighting process more convenient and helping to improve work efficiency.

[0042] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] See also Figure 1-5 As shown, the embodiment of the present application provides a lighting device 1110 for an LED display unit, and the lighting device 1110 for the LED display unit includes a frame 1119, a lighting control module 1118, a transmitting module 1111, a receiving module 1112, a driving module 1113, a fixing seat 1115, a motion mechanism 1116 and a carrier 1114 carrying the LED display unit; the lighting control module 1118 and the transmitting module 1111 are installed on the frame 1119, and the lighting control module 1118 is electrically connected to the transmitting module 1111; the receiving module 1112 and the driving module 1113 are installed on the carrier 1114, and the receiving module 1112 is electrically connected to the driving module 1113, and the driving module 1113 is installed on the carrier 1114. It is also electrically connected to the LED display unit; the moving mechanism 1116 is connected to the fixing seat 1115, and the moving mechanism 1116 is used to drive the carrier 1114 to move relative to the transmitting module 1111 so that the receiving module 1112 is close to or away from the transmitting module 1111; when the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance, the lighting control module 1118 is used to send a lighting control signal to the transmitting module 1111, and the transmitting module 1111 is used to establish a communication connection with the receiving module 1112, and send the received lighting control signal to the receiving module 1112, and the receiving module 1112 is used to send the lighting control signal to the driving module 1113 to light up the LED display unit.

[0044] Specifically, the LED display unit 1120 is a display system or a display device or a display component. For example, the LED display unit 1120 can be an LED lamp, an LED display screen, etc. The LED display unit 1120 at least includes an LED light source that can be illuminated, and the LED light source includes LED lamp beads. The LED display unit 1120 also includes a driving circuit electrically connected to the LED light source; the LED display unit 1120 can also include a circuit board, and the driving circuit is connected to the circuit board.

[0045] The driving module 1113 is used to be electrically connected to the LED display unit 1120 and to supply power to the LED display unit 1120. In one embodiment, the driving module 1113 includes a driving circuit, and the output end of the driving circuit is electrically connected to the LED display unit 1120. The output end of the driving circuit can also be connected to a port structure for pairing with the LED display unit 1120. The port structure can be in the form of a plug-in port, for example, a probe structure, and the port structure can be set on a plug-in board; the driving circuit can be electrically connected to the port structure. In addition, a switch module, such as a relay, can be set in the driving circuit. When the relay is closed, the driving circuit is turned on to supply power to the LED display unit 1120.

[0046] A docking structure may be formed on the LED display unit 1120 , and the docking structure may adopt a probe structure; the LED display unit 1120 is electrically connected to the driving module 1113 , and the docking structure on the LED display unit 1120 is paired and plugged with the port structure of the driving module 1113 .

[0047] The lighting control module 1118 is installed on the frame 1119, and the frame 1119 supports the lighting control module 1118. The frame 1119 can be installed on the fixing base 1115 and fixedly connected to the fixing base 1115; the lighting control module 1118 can be considered as the overall control center of the lighting device 1110. When the LED display unit 1120 needs to be lit, the lighting control module 1118 sends a lighting control signal to the transmitting module 1111, and a communication connection is established between the transmitting module 1111 and the receiving module 1112. The transmitting module 1111 sends the received lighting control signal to the receiving module 1112, and the receiving module 1112 sends the lighting control signal to the driving module 1113, and the driving module 1113 powers on and lights the LED display unit.

[0048] Among them, there is a sensing distance between the receiving module 1112 and the transmitting module 1111, and the sensing distance is defined as a preset distance. When the device is used, combined with Figure 7 and Figure 8 As shown, the LED display unit 1120 is connected to the driving module 1113, and the transmitting module 1111 transmits a lighting control signal. When the distance between the transmitting module 1111 and the receiving module 1112 is less than or equal to the preset distance, the receiving module 1112 can receive the lighting control signal and enable the driving module 1113 to light up the LED display unit 1120; when the distance between the transmitting module 1111 and the receiving module 1112 is greater than the preset distance, the receiving module 1112 cannot receive the lighting control signal, and the driving module 1113 cannot light up the LED display unit 1120.

[0049] The receiving module 1112 and the driving module 1113 are both installed on the carrier 1114. The carrier 1114 can adopt a frame structure to carry the receiving module 1112 and the driving module 1113. The carrier 1114 is movably installed on the fixed seat 1115. The fixed seat 1115 is a fixed base and can adopt a frame structure. The carrier 1114 and the fixed seat can be connected by sliding, rotating, etc. For example, the carrier 1114 moves relative to the fixed seat 1115 through a sliding groove opened on the fixed seat 1115, or the carrier 1114 is rotatably connected to the fixed seat 1115 through a rotating shaft, so that the carrier 1114 rotates around the rotating shaft relative to the fixed seat 1115, so that the carrier 1114 can move relative to the fixed seat 1115. The motion mechanism 1116 can be installed on the fixed seat 1115 or can also be installed on the base 1150 described below. The motion mechanism 1116 has a motion output end, which is connected to the carrier 1114, thereby driving the carrier 1114 to move relative to the fixed seat 1115, so that the receiving module 1112 and the driving module 1113 can move relative to the transmitting module 1111 on the fixed seat 1115, so that the receiving module 1112 moves closer to or away from the transmitting module 1111. When the sensing distance between the receiving module 1112 and the transmitting module 1111 is less than the preset distance, wireless communication sensing is performed between the receiving module 1112 and the transmitting module 1111, and the receiving module 1112 receives the lighting control signal sent by the transmitting module 1111, thereby making the driving module 1113 work, and the LED display unit 1120 is powered on and lit; wherein the wireless communication method may include a combination of one or more of near-field communication, electromagnetic induction, infrared induction, ultrasonic induction, capacitive induction and photoelectric induction.

[0050] The motion mechanism 1116 has various structural forms, and may adopt a connecting rod mechanism, a gear transmission mechanism, a belt transmission mechanism, a chain transmission mechanism, etc. The motion mechanism 1116 may adopt a motor or hydraulic drive, etc.

[0051] In this embodiment, the transmitting module 1111 and the receiving module 1112 are communicated and connected by wireless communication induction. The receiving module 1112 can move closer to or away from the transmitting module 1111 under the drive of the motion mechanism 1116. When the distance between the receiving module 1112 and the transmitting module 1111 is less than the preset distance, the LED display unit 1120 is illuminated, thereby eliminating the need for probe plugging to perform the lighting work. The wireless transmission method makes the driving module 1113 to light up the LED display unit 1120 more convenient, which is conducive to improving work efficiency.

[0052] In one embodiment, when the distance between the receiving module 1112 and the transmitting module 1111 is greater than a preset distance, the transmitting module 1111 can disconnect the communication with the receiving module 1112 .

[0053] Specifically, the preset distance can be considered as the transmitting distance or sensing distance of the transmitting module 1111. Only when the receiving module 1112 moves within the range covered by the transmitting distance of the transmitting module 1111, signal transmission will occur between the receiving module 1112 and the transmitting module 1111; when the receiving module 1112 moves away from the transmitting module 1111, when the receiving module 1112 leaves the signal coverage range of the transmitting module 1111, the receiving module 1112 cannot receive the lighting control signal sent by the transmitting module 1111, and the driving module 1113 stops working, and the LED display unit 1120 cannot be powered on or lit.

[0054] In this example, when the distance between the receiving module 1112 and the transmitting module 1111 is greater than the preset distance, the transmitting module 1111 and the receiving module 1112 disconnect communication, so that the LED display unit 1120 cannot be illuminated, and the LED display unit 1120 remains off outside the sensing distance, which is beneficial to saving energy. The LED display unit 1120 will only be illuminated after moving to the set detection position range.

[0055] In one embodiment, the wireless communication method includes a combination of one or more of near field communication, electromagnetic induction, infrared induction, capacitive induction and photoelectric induction. Therefore, it can be known that the wireless signal is transmitted between the receiving module 1112 and the transmitting module 1111 by proximity sensing, and the transmission range can be within the diameter range of 0mm-100mm.

[0056] Specifically, near field communication (NFC) is a short-range wireless communication technology that allows close-range data exchange between two modules or components, such as a transmission distance of less than 4 cm. Signals or data can be transmitted between the transmitting module 1111 and the receiving module 1112 via near field communication.

[0057] Electromagnetic induction realizes data encoding and transmission by changing the electromagnetic field. In electromagnetic induction communication, the transmitting module 1111 can change the state of the electromagnetic field, such as changing the strength or frequency of the magnetic field, and the receiving module 1112 senses the above changes through the sensing device and decodes them into corresponding data signals. The data signal can control the operation of the driving module 1113, thereby lighting up the LED display unit 1120.

[0058] Infrared induction communication uses infrared light signals for data transmission and communication. The transmitting module 1111 carries information by modulating infrared light signals, and the receiving module 1112 receives and decodes the above signals through an infrared receiver to form a lighting control signal to realize data transmission and communication. The lighting control signal controls the operation of the driving module 1113, thereby lighting up the LED display unit 1120.

[0059] Capacitive sensing utilizes the principle of capacitance. The receiving module 1112 may include a capacitive sensor, etc. When the receiving module 1112 approaches the transmitting module 1111, the value of the capacitance will change. The receiving module 1112 detects the change in capacitance and converts it into an electrical signal (i.e., a lighting control signal) for processing, and then transmits the signal to the driving module 1113.

[0060] Photoelectric sensing utilizes the photoelectric effect. The transmitting module 1111 can emit light, and the receiving module 1112 may include a photosensitive device. When the light emitted by the transmitting module 1111 shines on the photosensitive device (such as a photodiode or a photoresistor) of the receiving module 1112, an electrical signal is generated. The electrical signal changes with the change of light intensity. The transmitting module 1111 can also control the driving module 1113 by detecting this change.

[0061] The transmitting module 1111 and the receiving module 1112 can use a combination of near field communication, electromagnetic induction, infrared induction, capacitive induction and photoelectric induction to transmit wireless signals, thereby making the signal transmission between the transmitting module 1111 and the receiving module 1112 more stable and reliable.

[0062] In this embodiment, the transmitting module 1111 and the receiving module 1112 can be wirelessly connected through various wireless induction methods such as near field communication, electromagnetic induction, infrared induction, capacitive induction and photoelectric induction, so that when the receiving module 1112 in the lighting device 1110 is close to the transmitting module 1111 and the distance is less than a preset distance, the receiving module 1112 can receive the lighting control signal of the transmitting module 1111, and then the driving module 1113 lights up the LED display unit 1120, making the lighting process of the LED display unit 1120 more convenient.

[0063] In one embodiment, referring to Figure 1 and Figure 2 As shown, the motion mechanism 1116 includes a first motion mechanism 1116a and a second motion mechanism 1116b; the first motion mechanism 1116a is used to drive the carrier 1114 to move toward or away from the receiving module 1112 in a horizontal direction, and the second motion mechanism 1116b is used to drive the carrier 1114 to move toward or away from the receiving module 1112 in a vertical direction.

[0064] It should be pointed out that, in this example, the lighting device is placed horizontally as an example, and the horizontal direction X and the vertical direction Y are arranged perpendicularly to each other; the horizontal direction X can be a direction parallel to the display surface of the LED display unit 1120; the vertical direction Y can be a direction perpendicular to the display surface of the LED display unit 1120.

[0065] The motion mechanism 1116 enables the carrier 1114 to move in at least two directions relative to the fixed seat 1115, wherein the movements in the two directions may have a sequence. For example, in the process of the carrier 1114 carrying the receiving module 1112 and moving close to the transmitting module 1111, the first motion mechanism 1116a is started first, so that the carrier 1114 first moves in the horizontal direction, and the second motion mechanism 1116b is started again, so that the carrier 1114 continues to move in the vertical direction, so that the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance, or, in this process, the second motion mechanism 1116b is started first, so that the carrier 1114 first moves in the vertical direction, and the first motion mechanism 1116a is started again, so that the carrier 1114 continues to move in the horizontal direction, so that the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance.

[0066] For example, after the carrier 1114 moves toward the transmitting module 1111 along the horizontal direction X, it reaches the preset position. At the preset position, the receiving module 1112 is still outside the signal coverage range of the transmitting module 1111, that is, the distance between the receiving module 1112 and the transmitting module 1111 is greater than the preset distance. Therefore, the carrier 1114 continues to move along the vertical direction Y, and the receiving module 1112 moves into the signal coverage range of the transmitting module 1111. At this time, the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance, and the receiving module 1112 receives the lighting control signal emitted by the transmitting module 1111. The preset distance may range from 0 mm to 100 mm.

[0067] The first moving mechanism 1116a may include a driving component and a first moving component. The driving component may be a motor or a cylinder. Correspondingly, the first moving component may be a connecting rod structure, a gear, a chain, a transmission belt or the like. The power output end of the driving component is connected to the power input end of the first moving component, and the power output end of the first moving component is connected to the carrier 1114, thereby driving the carrier 1114 to move along the horizontal direction X relative to the fixed seat 1115.

[0068] Reference Figure 1 , Figure 2 and Figure 5As shown, the lighting device 1110 of the LED display unit also includes a guide rail structure 11151, which is installed on the fixed seat 1115. A sliding groove is formed on the carrier 1114, and the sliding groove is plugged into and slidably matched with the guide rail structure 11151, so that the carrier 1114 is slidably connected to the fixed seat 1115 through the guide rail structure 11151. The guide rail structure 11151 is extended along the horizontal direction X so that the carrier 1114 moves along the horizontal direction X relative to the fixed seat 1115.

[0069] The second moving mechanism 1116b may include a power component and a second moving component. The power component may be a motor or a cylinder. Correspondingly, the second moving component may be a connecting rod structure, gears, chains, transmission belts and other structures. The power output end of the power component is connected to the power input end of the second moving component, and the power output end of the second moving component is connected to the carrier 1114, thereby driving the carrier 1114 to move along the vertical direction Y relative to the fixed seat 1115.

[0070] The above design is conducive to achieving precise control of the vehicle 1114 and precise control of signal transmission, so that the receiving module 1112 can sense and wirelessly communicate with the transmitting module 1111 within a set position or range.

[0071] In this embodiment, by making the carrier 1114 carry the receiving module 1112 and move along the horizontal direction X and the vertical direction Y respectively, the carrier 1114 can be installed with the fixing seat 1115 at a position far away from the transmitting module 1111, so that the carrier 1114 can move toward the transmitting module 1111 along the horizontal direction X and can move along the vertical direction Y, so that the receiving module 1112 and the transmitting module 1111 can communicate wirelessly, which is conducive to achieving precise control of the position of the receiving module 1112, and further achieving precise control of signal transmission.

[0072] In one embodiment, referring to Figure 1 and Figure 2 As shown, the lighting device 1110 of the LED display unit also includes a limiting component 1117, which can limit the movement of the carrier 1114 in the horizontal direction so that the receiving module 1112 is limited to a preset position; the second motion mechanism 1116b is specifically used to drive the carrier 1114 to move closer to or away from the receiving module 1112 in the vertical direction when the receiving module 1112 is limited to a preset position.

[0073] Specifically, the carrier 1114 can move along the horizontal direction X relative to the fixing seat 1115. When the receiving module 1112 on the carrier 1114 moves to a preset position, the limiting assembly 1117 is used to limit the carrier 1114, so that the receiving module 1112 is limited and maintained at the preset position.

[0074] After the carrier 1114 is limited to a preset position by the limiting assembly 1117, the second motion mechanism 1116b further drives the carrier 1114 to move in a vertical direction toward the receiving module 1112, so that the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance, thereby enabling wireless signal transmission between the receiving module 1112 and the transmitting module 1111; after completing the lighting process, the second motion mechanism 1116b can also drive the carrier 1114 to move in a vertical direction away from the receiving module 1112.

[0075] In this embodiment, by providing a limiting assembly 1117, the carrier 1114 is limited so that the carrier 1114 and the receiving module 1112 can be maintained at a preset position, thereby improving the stability of the carrier 1114 and the receiving module 1112 at the preset position.

[0076] In one embodiment, referring to Figure 1 As shown, the limiting assembly 1117 includes a fixing plate 1117a and a stopping structure 1117b. The fixing plate 1117a is installed below the first moving mechanism 1116a. The stopping structure 1117b is movably connected to the fixing plate 1117a. The stopping structure 1117b can move upward in a vertical direction to block the carrier 1114 from moving in a horizontal direction so that the receiving module 1112 is limited to a preset position.

[0077] Specifically, the fixed plate 1117a is used to support the stop structure 1117b, and the stop structure 1117b can be movably connected to the fixed plate 1117a. For example, the stop structure 1117b moves in a vertical direction (i.e., a vertical direction) relative to the fixed plate 1117a. When it is necessary to block the carrier 1114, the stop structure 1117b moves upward in the vertical direction, so that the stop structure 1117b is located on the movement trajectory of the carrier 1114 and in front of the movement direction of the carrier 1114, thereby blocking the carrier 1114 from continuing to move, so that the receiving module 1112 on the carrier 1114 can be limited to a preset position at the same time.

[0078] The limiting assembly 1117 may also include a limiting seat 1117c, and the fixing plate 1117a may be installed on the limiting seat 1117c; the stopping structure 1117b may adopt a protruding structure or a wheel structure, and the stopping structure 1117b may be set on the moving trajectory of the carrier 1114 and at a preset position to block the carrier 1114 and the receiving module 1112 from continuing to move along the horizontal direction X at the preset position.

[0079] In one embodiment, the stop structure 1117b is an elastic structure.

[0080] In this embodiment, the stop structure 1117b can be made of elastic materials such as silicone and rubber, so that the stop structure 1117b can be elastically deformed when squeezed by the carrier 1114, thereby playing a buffering role. Alternatively, an elastic part is provided on the stop structure 1117b, so that when the stop structure 1117b is squeezed by the carrier 1114, the elastic part can be elastically deformed, and the position of the stop structure 1117b can move accordingly to buffer the impact force.

[0081] In one embodiment, referring to Figure 1-4 As shown, at a preset position, the transmitting module 1111 and the receiving module 1112 are arranged opposite to each other and spaced apart.

[0082] Specifically, the carrier 1114 carries the receiving module 1112 and moves from a position away from the transmitting module 1111 to a preset position along the horizontal direction X. At the preset position, the transmitting module 1111 can be arranged opposite to the receiving module 1112, and the transmitting module 1111 and the receiving module 1112 are arranged at an interval and form an interval distance, which is greater than the preset distance. Therefore, at the preset position, the driving module 1113 cannot work and cannot light up the LED display unit 1120; the receiving module 1112 is driven by the second motion mechanism 1116b and moves from the preset position toward the transmitting module 1111, so that the interval distance between the receiving module 1112 and the transmitting module 1111 is less than the preset distance, then the receiving module 1112 can receive the lighting control signal emitted by the transmitting module 1111, and when the interval distance is equal to 0 mm, the receiving module 1112 is in contact with the transmitting module 1111 to form a contact-type wireless induction communication.

[0083] For example, the receiving module 1112 is located below the transmitting module 1111 and is arranged opposite to the transmitting module 1111. The second motion mechanism 1116b can be located on the side of the vehicle 1114 that is away from the transmitting module 1111. For example, the transmitting module 1111 is located above the vehicle 1114, and the second motion mechanism 1116b is located below the vehicle 1114. When the first motion mechanism 1116a drives the vehicle 1114 to move to a preset position along the horizontal direction X, the receiving module 1112 is opposite to the transmitting module 1111, and the receiving module 1112 is located below the transmitting module 1111, then the second motion mechanism 1116b works to drive the vehicle 1114 to move toward the transmitting module 1111 along the vertical direction Y, so that the distance between the receiving module 1112 and the transmitting module 1111 is less than the preset distance.

[0084] In this example, after the receiving module 1112 moves to a position relative to the transmitting module 1111, the receiving module 1112 and the transmitting module 1111 may not have a communication connection at first. When the receiving module 1112 continues to approach the transmitting module 1111 relatively, during the approach process, the receiving module 1112 can receive the signal transmitted by the transmitting module 1111 to achieve wireless inductive communication between the receiving module 1112 and the transmitting module 1111.

[0085] In one embodiment, referring to Figure 7 As shown, the driving module 1113 includes a driving circuit, the LED display unit 1120 is electrically connected to the driving circuit, and the driving circuit is electrically connected to the receiving module 1112 so that the driving circuit is turned on when the receiving module 1112 receives a lighting control signal.

[0086] For example, a driving power supply and a switch structure are provided in the driving circuit. The switch structure may be a relay. The lighting control signal may close the switch structure to close the driving circuit and conduct the lighting control signal.

[0087] The present application also provides a detection device 1000 for an LED display unit, referring to Figure 5 and Figure 6 As shown, the detection device 1000 includes at least one detection station 1100, each of which includes a bracket 1140, an image acquisition device 1130 and a lighting device 1110 of the LED display unit in the above embodiment, the image acquisition device 1130 is installed on the bracket 1140, the bracket 1140 can be connected to the fixing seat 1115, the bracket 1140 can also be installed on the base 1150 described below, and the image acquisition device 1130 is used to capture images of the LED display unit 1120.

[0088] Specifically, the image acquisition device 1130 is used to acquire images of the LED display unit 1120 , and the inspection station 1100 can perform brightness and color correction and defect detection on the LED display unit 1120 based on the acquired lighting image.

[0089] In this example, when performing brightness and chromaticity correction and defect detection on the LED display unit 1120, it is necessary to first light up the LED display unit 1120 through the lighting device 1110. When the LED display unit 1120 is in the lit state, the image acquisition device 1130 then acquires an image of the LED display unit 1120, and then performs brightness and chromaticity correction and defect detection based on the acquired lit image.

[0090] The example of the detection device 1000 in the present application is based on the example of the lighting device 1110 described above. Therefore, the example of the detection device 1000 includes all the technical effects of the example of the lighting device 1110 described above, which will not be described in detail.

[0091] In one embodiment, referring to Figure 5 and Figure 6 As shown, the image acquisition device 1130 is arranged above the LED display unit 1120, that is, above the preset position; the image acquisition device 1130 is used to capture images when the LED display unit 1120 is turned on, so as to perform brightness and color correction or defect detection on the LED display unit 1120.

[0092] The image acquisition device 1130 may be an area array camera. When the LED display unit 1120 is lit, the image acquisition device 1130 may obtain a lit image of the LED display unit 1120 by photographing. Based on the lit image, the brightness, color and defect problems of the LED display unit 1120 may be analyzed and determined. The image acquisition device 1130 is located above a preset position, so as to facilitate the acquisition of a front image of the LED display unit 1120.

[0093] In one embodiment, referring to Figure 5 As shown, the detection device 1000 of the LED display unit further includes a base 1150 , and the fixing base 1115 and the bracket 1140 are both connected to the base 1150 .

[0094] Specifically, the base 1150 can adopt a box structure, and the base 1150 is located at the bottom of the detection equipment 1000 and is used to be placed on a supporting surface (or the ground). The lighting device 1110 is installed on the base 1150 and is located on the upper surface of the base 1150, so that the fixed seat 1115 in the lighting device 1110 is installed on the base 1150; in addition, the bracket 1140 can also be installed on the base 1150, and the bracket 1140 is located on the side of the fixed seat 1115. A plurality of legs 1170 can also be installed on the lower part of the base 1150. The legs 1170 are used to keep the lower surface of the base 1150 away from the ground to protect the bottom of the base 1150.

[0095] In one embodiment, referring to Figure 5 As shown, a wheel assembly 1160 is connected to the bottom of the base 1150, and the base 1150 can be moved by the wheel assembly 1160. A plurality of wheel assemblies 1160 may be provided, and the wheel assembly 1160 may adopt a universal wheel structure with a brake function.

[0096] In one embodiment, referring to Figure 6 As shown, the LED display unit detection device 1000 includes a plurality of detection stations 1100 , and each detection station 1100 is connected via a motion mechanism 1116 (specifically, a first motion mechanism 1116 a ) so that the LED display unit 1120 can flow between the detection stations 1100 .

[0097] Specifically, multiple inspection stations 1100 are connected to each other so that the LED display unit 1120 can flow between the inspection stations 1100. When a guide rail structure 11151 is installed on the fixed seat 1115, the guide rail structures 11151 in each inspection station 1100 are connected and arranged. It can be seen that the carrier 1114 can move on the guide rail structure 11151 in each inspection station 1100. In other words, a carrier 1114 can be moved to the inspection station of each image acquisition device 1130 through the connected guide rail structure 11151, so there is no need to disassemble the carrier 1114, and the circulation and inspection of the carrier 1114 in each inspection station 1100 can be achieved, which improves the convenience of the correction and inspection process and is conducive to improving work efficiency.

[0098] The first motion mechanism 1116 a is connected to the carrier 1114 , so that the first motion mechanism 1116 a can push the carrier 1114 to slide along the horizontal direction X on the fixing seat 1115 of each inspection station 1100 .

[0099] In one embodiment, the inspection contents of each inspection station 1100 are the same or different. The different inspection contents enable each inspection station 1100 to perform different inspection contents on the LED display unit 1120, so as to achieve a comprehensive inspection of the LED display unit 1120, thereby making the correction inspection of the present inspection equipment 1000 more powerful.

[0100] The present application also provides a method for lighting an LED display unit. The method adopts the lighting device 1110 in the above embodiment. Figure 7 and Figure 8 As shown, the lighting method includes the following steps:

[0101] In step S1 , the LED display unit 1120 is installed on the carrier 1114 and electrically connected to the driving module 1113 .

[0102] Specifically, the carrier 1114 is installed on the fixed base 1115, and the carrier 1114 can move relative to the fixed base 1115; the driving module 1113 is fixedly installed on the carrier 1114, and the LED display unit 1120 is installed on the carrier 1114, and is paired and electrically connected with the driving module 1113.

[0103] Step S2: the lighting control module 1118 sends a lighting control signal to the transmitting module 1111.

[0104] The lighting control module 1118 can be considered as the control center of the detection device 1000 or the lighting device 1110 , and the lighting control module 1118 is electrically connected or wirelessly connected to the transmitting module 1111 .

[0105] In step S3 , the motion mechanism 1116 drives the carrier 1114 to move relative to the transmitting module 1111 .

[0106] The motion output end of the motion mechanism 1116 is connected to the carrier 1114, thereby driving the carrier to move relative to the fixed seat 1115 and relative to the frame 1119. The frame 1119 is fixedly connected to the fixed seat 1115, so that the carrier 1114 can move relative to the transmitting module 1111.

[0107] Step S4 , when the distance between the receiving module 1112 and the transmitting module 1111 is less than or equal to the preset distance, the transmitting module 1111 receives the lighting control signal and sends the lighting control signal to the receiving module 1112 .

[0108] Specifically, the transmitting module 1111 can use a signal transmitter, such as a sensor, etc. The transmitting module 1111 can be communicatively connected with the lighting control module 1118. The transmitting module 1111 can receive the lighting control signal transmitted by the lighting control module 1118 (or the control center). The transmitting module 1111 receives the lighting control signal and sends the received lighting control signal to the receiving module 1112.

[0109] In step S5 , the receiving module 1112 receives the lighting control signal so that the driving module 1113 lights up the LED display unit 1120 .

[0110] Specifically, the receiving module 1112 is used to receive the lighting control signal sent by the transmitting module 1111, and then control the driving module 1113 to power on the LED display unit 1120 to light up the LED display unit 1120. For example, the driving module 1113 receives the lighting control signal, and the lighting control signal causes the driving module 1113 to power the LED display unit 1120, so that the LED display unit 1120 is lit.

[0111] In this example, the driving module 1113 is used to electrically connect the LED display unit 1120 and can illuminate the LED display unit 1120. The operation of the driving module 1113 is controlled through the wireless communication transmission between the transmitting module 1111 and the receiving module 1112. The receiving module 1112 only needs to receive the lighting control signal transmitted by the transmitting module 1111 to control the driving module 1113 to perform the lighting work, so that the driving module 1113 does not need to use the probe plug-in method to perform the lighting work. The wireless transmission method makes the lighting process of the LED display unit 1120 by the driving module 1113 more convenient, which is conducive to improving work efficiency.

[0112] The example of the detection method in the present application is based on the example of the lighting device 1110 described above. Therefore, the example of the detection method includes all the technical effects of the example of the lighting device 1110 described above, which will not be described in detail.

[0113] In one embodiment, the lighting control signal includes a combination of one or more of an electromagnetic signal, a photoelectric signal, an infrared signal, a radio frequency signal and a capacitive signal.

[0114] Specifically, the introduction of electromagnetic signals, photoelectric signals, infrared signals, radio frequency signals and capacitive signals can be found in the above description and will not be repeated here. The wireless communication method is not limited to the above method. The transmitting module 1111 and the receiving module 1112 can realize signal transmission and control through wireless communication, which can be applied to the lighting device 1110.

[0115] In one embodiment, the preset distance ranges from 0 mm to 100 mm.

[0116] Specifically, the preset distance can be understood as the transmitting distance of the transmitting module 1111. The condition for the receiving module 1112 to receive the lighting control signal is that the receiving module 1112 is moved within the transmitting distance range of the transmitting module 1111, that is, the distance between the receiving module 1112 and the transmitting module 1111 is within the preset range. Then, the receiving module 1112 can receive the lighting control signal sent by the transmitting module 1111 within the preset range, and the driving module 1113 can light up the LED display unit 1120.

[0117] It can be seen that the present lighting method can use a proximity-type method for wireless induction communication, so that the receiving module 1112 is close to the transmitting module 1111. Then, within a preset range, the receiving module 1112 receives a lighting control signal, and then controls the driving module 1113 to work. The driving module 1113 can control the LED display unit 1120 to be lit.

[0118] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A lighting device (1110) for an LED display unit, characterized in that: The lighting device (1110) of the LED display unit comprises: a frame (1119), a lighting control module (1118), a transmitting module (1111), a receiving module (1112), a driving module (1113), a fixing seat (1115), a moving mechanism (1116), and a carrier (1114) carrying the LED display unit; The lighting control module (1118) and the transmitting module (1111) are installed on the frame (1119), and the lighting control module (1118) is electrically connected to the transmitting module (1111); The receiving module (1112) and the driving module (1113) are installed on the carrier (1114); the receiving module (1112) is electrically connected to the driving module (1113); and the driving module (1113) is also electrically connected to the LED display unit (1120); The moving mechanism (1116) is connected to the fixing seat (1115), and the moving mechanism (1116) is used to drive the carrier (1114) to move relative to the transmitting module (1111), so as to make the receiving module (1112) approach or move away from the transmitting module (1111); When the distance between the receiving module (1112) and the transmitting module (1111) is less than or equal to a preset distance, the lighting control module (1118) is used to send a lighting control signal to the transmitting module (1111), the transmitting module (1111) is used to establish a communication connection with the receiving module (1112), and send the received lighting control signal to the receiving module (1112), and the receiving module (1112) is used to send the lighting control signal to the driving module (1113) to light up the LED display unit (1120).

2. The lighting device (1110) of the LED display unit according to claim 1, characterized in that: The motion mechanism (1116) includes a first motion mechanism (1116a) and a second motion mechanism (1116b); the first motion mechanism (1116a) is used to drive the carrier (1114) to move toward or away from the receiving module (1112) in a horizontal direction, and the second motion mechanism (1116b) is used to drive the carrier (1114) to move toward or away from the receiving module (1112) in a vertical direction.

3. The lighting device (1110) of the LED display unit according to claim 2, characterized in that: The lighting device (1110) of the LED display unit further comprises a limiting component (1117), wherein the limiting component (1117) is capable of limiting the movement of the carrier (1114) in a horizontal direction so that the receiving module (1112) is limited to a preset position; The second motion mechanism (1116b) is specifically used to drive the carrier (1114) to move toward or away from the receiving module (1112) in a vertical direction when the receiving module (1112) is limited to the preset position.

4. The lighting device (1110) of the LED display unit according to claim 3, characterized in that: The limiting assembly (1117) comprises a fixing plate (1117a) and a stopping structure (1117b); the fixing plate (1117a) is installed below the first moving mechanism (1116a); the stopping structure (1117b) is movably connected to the fixing plate (1117a); the stopping structure (1117b) is capable of moving upward in a vertical direction to block the carrier (1114) from moving in a horizontal direction, so that the receiving module (1112) is limited to a preset position.

5. The lighting device (1110) of the LED display unit according to claim 4, characterized in that: The stop structure is an elastic structure.

6. The lighting device (1110) of the LED display unit according to any one of claims 3 to 5, characterized in that: At the preset position, the transmitting module (1111) and the receiving module (1112) are arranged opposite to each other and spaced apart.

7. A detection device (1000) for an LED display unit, characterized in that: The detection device (1000) comprises at least one detection station (1100), each of the detection stations (1100) comprising a bracket (1140), an image acquisition device (1130), and a lighting device (1110) for an LED display unit according to any one of claims 1 to 6; The bracket (1140) is connected to the fixing seat (1115), and the image acquisition device (1130) is installed on the bracket (1140).

8. The detection device (1000) for an LED display unit according to claim 7, characterized in that: The image acquisition device (1130) is arranged above the LED display unit (1120); The image acquisition device (1130) is used to acquire images when the LED display unit (1120) is lit, so as to perform brightness and chromaticity correction or defect detection on the LED display unit (1120).

9. The detection device (1000) of the LED display unit according to claim 8, characterized in that: The detection device (1000) of the LED display unit comprises a plurality of detection stations (1100), and each of the detection stations (1100) is connected via the motion mechanism (1116) so that the LED display unit (1120) can flow between the detection stations (1100).

10. The detection device (1000) of the LED display unit according to claim 7, characterized in that: The LED display unit detection device (1000) further comprises a base (1150), and the fixing seat (1115) and the bracket (1140) are both connected to the base (1150).

Images