CN219246318U

CN219246318U - LED display screen

Info

Publication number: CN219246318U
Application number: CN202320480962.6U
Authority: CN
Inventors: 林谊
Original assignee: Shenzhen Jinghong Technology Co ltd
Current assignee: Shenzhen Jinghong Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-06-23
Anticipated expiration: 2033-03-03

Abstract

The utility model relates to an LED display screen, which comprises a transparent substrate, a control assembly and a plurality of LED lamp beads; all the LED lamp bead arrays are distributed on the front surface of the transparent substrate; the control assembly comprises a PCB, an MCU module and an FPGA module; the PCB is assembled on one side of the back surface of the transparent substrate, and the MCU module and the FPGA module are assembled on the PCB; the MCU module is provided with a wireless transmission module which is used for receiving the control signal; the MCU module is electrically connected with the LED lamp beads through the FPGA module and used for controlling the LED lamp beads to work according to the control signals. The LED display screen adopts the MCU module with the built-in wireless transmission module, and the MCU module and the LED lamp beads are communicated through the FPGA module, so that the integral structure of the control assembly is greatly simplified, the installation space required by the control assembly is reduced, the light, thin and miniaturized design of the LED display screen is facilitated, the transportation and the installation of the LED display are facilitated, and the LED display screen can be suitable for a smaller installation space.

Description

LED display screen

Technical Field

The utility model belongs to the technical field of display screens, and particularly relates to an LED display screen.

Background

At present, people pay more attention to information propaganda, and LED display screens are gradually and widely applied in markets and various product forms are developed. The single-color character-moving screen is one of LED display screens and is widely applied to propaganda of various shops. The existing monochromatic character passing screen generally comprises a sending card, a receiving card and LED lamp beads. However, for the LED display screen which only needs to display simple information, such as a single-color character passing screen, the architecture of the sending card and the receiving card is arranged, so that the cost is high, and a large installation space is required, so that the whole LED display screen is thick and heavy, and the LED display screen is difficult to be made thin.

Disclosure of Invention

The utility model provides an LED display screen to realize the light, thin and miniaturized design of the LED display screen.

The embodiment of the utility model provides an LED display screen, which comprises a transparent substrate, a control assembly and a plurality of LED lamp beads;

all the LED lamp bead arrays are distributed on the front surface of the transparent substrate;

the control assembly comprises a PCB, an MCU module and an FPGA module; the PCB is assembled on one side of the back surface of the transparent substrate, and the MCU module and the FPGA module are assembled on the PCB; the MCU module is provided with a wireless transmission module, and the wireless transmission module is used for receiving control signals; the MCU module is electrically connected with the LED lamp beads through the FPGA module and is used for controlling the LED lamp beads to work according to the control signals.

Optionally, the wireless transmission module is any one of a WIFI module and a bluetooth module.

Optionally, the control assembly further comprises a storage module mounted on the MCU module, and the storage module is used for storing the control signals.

Optionally, the LED lamp bead includes a housing, a driving chip and a light emitting wafer, the driving chip and the light emitting wafer are assembled on the housing, and the housing is assembled on the transparent substrate.

Optionally, the PCB board is mounted on one side of the back surface of the transparent substrate along the length direction thereof.

Optionally, the transparent substrate is a rectangular substrate, and the aspect ratio of the rectangular substrate is 3:1-10:1.

Optionally, all the LED light beads are distributed on the transparent substrate in a rectangular array.

Optionally, a first power supply connection area, a second power supply connection area, a first signal connection area and a second signal connection area are arranged on the LED lamp beads;

the LED display screen also comprises a first power supply line, a second power supply line and a signal line; the polarities of the first power supply line and the second power supply line are opposite; the first power line and the second power line are respectively connected with the PCB;

each row of LED lamp beads is correspondingly provided with a first power supply circuit, a second power supply circuit and a signal circuit; in each row of LED lamp beads, a first power supply connection area of each LED lamp bead is connected with the first power supply circuit, and a second power supply connection area of each LED lamp bead is connected with the second power supply circuit; the first signal connection areas of the LED lamp beads in the first row are connected with the PCB through the signal lines, and the first signal connection areas of the other LED lamp beads in the first row are connected with the second signal connection areas of the LED lamp beads in the previous row through the signal lines.

Optionally, the second signal connection areas of the last column of the two adjacent rows are connected.

Optionally, the LED display screen further includes a transparent cover plate, and the transparent cover plate covers all the LED lamp beads.

In the LED display screen provided by the embodiment of the utility model, the MCU module and the FPGA module are arranged to control the LED lamp beads to work in a matched manner, and the wireless transmission module is arranged in the MCU module, so that control signals output by external equipment are transmitted to the MCU module through the wireless transmission module and then are analyzed into output signals which can be identified by the LED lamp beads through the FPGA module, and the LED lamp beads can display corresponding information; compared with the existing display screen provided with the sending card and the receiving card, the LED display screen provided by the utility model adopts the MCU module with the built-in wireless transmission module, the MCU module and the LED lamp beads are communicated through the FPGA module, the integral structure of the control assembly is greatly simplified, the installation space required by the control assembly is reduced, the light, thin and miniaturized design of the LED display screen is facilitated, the transportation and the installation of the LED display are facilitated, the LED display screen can be suitable for a smaller installation space, and the control signals output by external equipment are transmitted to the LED display screen through the wireless transmission module to realize the display of corresponding information, so that the convenience of information display of the LED display screen is improved.

Drawings

FIG. 1 is a schematic diagram of an LED display screen according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an LED display screen according to another embodiment of the present utility model;

FIG. 3 is a schematic view of an LED display screen according to another embodiment of the present utility model;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is a schematic view of a portion of an LED display according to an embodiment of the present utility model.

Reference numerals in the specification are as follows:

1. a transparent substrate; 2. LED lamp beads; 21. a first power connection region; 22. a second power connection region; 23. a first signal connection region; 24. a second signal connection region; 3. a transparent cover plate; 4. a PCB board; 5. an MCU module; 6. an FPGA module; 7. a first power supply line; 8. a second power supply line; 9. and a signal line.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be 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 be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 4, an LED display screen provided by an embodiment of the present utility model includes a transparent substrate 1, a control component, and a plurality of LED lamp beads 2; all the LED lamp beads 2 are distributed on the front surface of the transparent substrate 1 in an array manner; the control assembly comprises a PCB 4, an MCU module 5 and an FPGA module 6; the PCB 4 is assembled on one side of the back surface of the transparent substrate 1, and the MCU module 5 and the FPGA module 6 are assembled on the PCB 4; the MCU module 5 is provided with a wireless transmission module which is used for receiving control signals; the MCU module 5 is electrically connected with the LED lamp beads 2 through the FPGA module 6 and is used for controlling the LED lamp beads 2 to work according to control signals.

As an example, the transparent substrate 1 is a component part for supporting the LED display screen, and is used for supporting other component parts of the LED display screen. The transparent substrate 1 includes two surfaces disposed opposite to each other, one of which is a front surface and the other of which is a back surface.

As an example, the LED lamp beads 2 are parts of the LED display screen that function to emit light for displaying corresponding information. The LED lamp beads 2 are distributed on the front face of the transparent substrate 1 in an array mode, and the LED lamp beads 2 work to display content to be displayed.

As an example, the control component is a component with a control function in the LED display screen, and is configured to receive a control signal and control the LED lamp bead 2 to work according to the control information, so that the LED lamp bead 2 displays the content to be displayed. The control assembly comprises a PCB 4, an MCU module 5 and an FPGA module 6, wherein the PCB 4 is assembled on one side of the back surface of the transparent substrate 1, a wireless transmission module is arranged on the MCU module 5, the MCU module 5 is connected with external equipment in a wireless mode, the MCU module 5 is electrically connected with the LED lamp beads 2 through the FPGA module 6, control signals output by the external equipment are transmitted to the MCU module 5 through the wireless transmission module, the control signals are transmitted to the FPGA module 6 through the MCU module 5, the FPGA module 6 converts the control signals into output signals which can be identified by the LED lamp beads 2, and the output signals are transmitted to the LED lamp beads 2, so that the LED lamp beads 2 work according to the output signals, and corresponding information is displayed.

In the LED display screen provided by the embodiment of the utility model, the MCU module 5 and the FPGA module 6 are arranged to control the LED lamp beads 2 to work in a matched manner, and the MCU module 5 is internally provided with the wireless transmission module, so that control signals output by external equipment are transmitted to the MCU module 5 through the wireless transmission module and then are analyzed into output signals which can be identified by the LED lamp beads 2 through the FPGA module 6, and the LED lamp beads 2 can display corresponding information; compared with the existing display screen assembled with the sending card and the receiving card, the LED display screen provided by the utility model adopts the MCU module 5 with the built-in wireless transmission module, the MCU module 5 and the LED lamp beads 2 are communicated through the FPGA module 6, the integral structure of the control assembly is greatly simplified, the installation space required by the control assembly is reduced, the light, thin and miniaturized design of the LED display screen is facilitated, the transportation and the installation of the LED display are facilitated, the LED display screen can be suitable for a smaller installation space, and control signals output by external equipment are transmitted to the LED display screen through the wireless transmission module to realize the display of corresponding information, so that the convenience of information display of the LED display screen is improved.

In an embodiment, the wireless transmission module is any one of a WIFI module and a bluetooth module.

As an example, the wireless transmission module is a WIFI module; one WIFI module can pair with a plurality of external equipment and be connected, and the WIFI module is little to the distance restriction, can long-range transmission control signal, and transmission efficiency is fast.

As an example, the wireless transmission module is a bluetooth module; the Bluetooth module and the external equipment realize point-to-point signal transmission, a network is not needed, the power consumption is low, and the cost is reduced.

As a preferred implementation manner, the external device is a smart phone, and the smart phone is connected with the wireless transmission module in a pairing manner, so that the content to be displayed, which is edited by a user on the smart phone, is transmitted to the MCU module 5 through the wireless transmission module, and then is analyzed into an output signal identifiable by the LED lamp bead 2 through the FPGA module 6, so that the LED lamp bead 2 displays corresponding content.

In an embodiment, the control assembly further comprises a memory module mounted on the MCU module 5 for storing the control signals. In this example, the control signal output by the external device is transmitted to the storage module through the wireless transmission module for storage, then the FPGA module 6 reads the control signal from the storage module and parses the control signal into an output signal identifiable by the LED, so that each LED lamp bead 2 works according to the output signal to display the corresponding content; the LED lamp beads 2 are convenient to control to work.

In one embodiment, the LED lamp bead 2 includes a housing, a driving chip and a light emitting wafer, the driving chip and the light emitting wafer are mounted on the housing, and the housing is mounted on the transparent substrate 1. In this example, the driving chip and the light emitting wafer are integrated on the housing to form the LED lamp beads 2; that is to say, the LED lamp beads 2 are internally provided with the driving chips, the driving chips are not required to be connected with the LED lamp beads 2, the signal connection circuit among the LED lamp beads 2 is greatly simplified, and the transparent display effect of the LED display screen is improved. Preferably, the light emitting wafer is mounted on the driving chip.

In one embodiment, as shown in fig. 2, the PCB board 4 is assembled on one side of the back surface of the transparent substrate 1 in the length direction thereof. In this example, the PCB 4 is assembled on one side of the back of the transparent substrate 1 along the length direction of the PCB, which is favorable for improving the transparent display effect of the LED display screen and facilitates the installation of the LED display screen.

In one embodiment, as shown in fig. 1, the transparent substrate 1 is a rectangular substrate. In the example, the transparent substrate 1 is designed into a rectangle, and the structure is simple, so that the processing and the installation are convenient.

Preferably, the aspect ratio of the rectangular substrate is 3:1 to 10:1.

In one embodiment, as shown in fig. 1, all the LED beads 2 are distributed on the transparent substrate 1 in a rectangular array. In this example, by such design, more LED lamp beads 2 are arranged on the transparent substrate 1 as much as possible, which is beneficial to controlling the operation of each LED lamp bead 2 so as to display corresponding content.

In this embodiment, as shown in fig. 5, in the LED lamp beads 2 distributed in a rectangular array, the LED lamp beads 2 arranged at intervals along the length direction of the rectangular substrate are each row of LED lamp beads 2, and the LED lamp beads 2 arranged at intervals along the width direction of the rectangular substrate are each column of LED lamp beads 2.

In one embodiment, as shown in fig. 5, the LED lamp bead 2 is provided with a first power connection area 21, a second power connection area 22, a first signal connection area 23 and a second signal connection area 24; the LED display screen also comprises a first power supply line 7, a second power supply line 8 and a signal line 9; the polarity of the first power supply line 7 and the second power supply line 8 are opposite; the first power line 7 and the second power line 8 are respectively connected with the PCB 4; each row of LED lamp beads 2 is correspondingly provided with a first power supply line 7, a second power supply line 8 and a signal line 9; in each row of LED lamp beads 2, a first power supply connection area 21 of each LED lamp bead 2 is connected with a first power supply circuit 7, and a second power supply connection area 22 of each LED lamp bead 2 is connected with a second power supply circuit 8; the first signal connection areas 23 of the first row of LED lamp beads 2 are connected with the PCB 4 through the signal lines 9, and the first signal connection areas 23 of the rest LED lamp beads 2 are connected with the second signal connection areas 24 of the previous row of LED lamp beads 2 through the signal lines 9.

In this example, the first power supply line 7 and the second power supply line 8 are parts of the LED display screen that supply power to the LED light beads 2. One of the first power supply line 7 and the second power supply line 8 of the LED lamp bead 2 is a positive electrode line, and the other is a negative electrode line; one of the first power supply connection region 21 and the second power supply connection region 22 is a positive electrode connection region, and the other is a negative electrode connection region. Each row of LED lamp beads 2 is correspondingly provided with a first power supply line 7, a second power supply line 8 and a signal line 9; taking the first row of LED beads 2 as an example, the first power connection area 21 of each LED bead 2 is connected to the first power line 7, and the second power connection area 22 of each LED bead 2 is connected to the second power line 8, so that each LED bead 2 directly takes power from the first power line 7 and the second power line 8.

In this example, the signal line 9 is a component of the LED display screen that connects each LED bead 2 in series and transmits signals to each LED bead 2. Taking the first row of LED lamp beads 2 as an example, the signal input connection area of the first row of LED lamp beads 2 is connected with the PCB 4 through a signal line 9, and the signal input connection area of each other row of LED lamp beads 2 is connected with the signal output connection area of the previous row of LED lamp beads 2 through the signal line 9, so that the series connection of the first row of LED lamp beads 2 is realized, and the signals for controlling the on and off of each LED lamp bead 2 can be sequentially transmitted through each series connected LED lamp beads 2 after being input from the PCB 4 through the signal line 9.

In one embodiment, as shown in fig. 5, the second signal connection regions 24 of the last column LED beads 2 of every two adjacent rows are connected. In this example, taking the first row and the second row of LED beads 2 as an example, the signal input connection area of the first row and the first column of LED beads 2 is connected with the PCB board 4 through the signal line 9, the signal input connection area of each of the other columns of LED beads 2 in the first row is connected with the signal output connection area of the LED beads 2 in the previous column through the signal line 9, the signal input connection area of the first column of LED beads 2 in the second row is connected with the PCB board 4 through the signal line 9, the signal input connection area of each of the other columns of LED beads 2 in the second row is connected with the signal output connection area of the LED beads 2 in the previous column through the signal line 9, and the second signal connection area 24 of the last column of the first row and the second signal connection area 24 of the last column of the second row are connected through the signal line 9, thereby realizing the serial connection of the first row and the second row of LED beads 2; one of the first signal connection area 23 and the second signal connection area 24 of the LED lamp bead 2 is a signal input connection area, and the other is a signal output connection area; the design is that signals for controlling the on and off of the two rows of LED lamp beads 2 can be input from the first row and the first column of LED lamp beads 2, signals for controlling the on and off of the two rows of LED lamp beads 2 can be input from the second row and the first column of LED lamp beads 2, signals for controlling the on and off of the first row of LED lamp beads 2 can be input from the first row and the first column of LED lamp beads 2, and signals for controlling the on and off of the second row of LED lamp beads 2 can be input from the second row and the first column of LED lamp beads 2; therefore, a standby scheme is set for the signal transmission of each LED lamp bead 2, each LED lamp bead 2 of the signal transmission is ensured, and the display effect of the LED display screen is ensured.

In this embodiment, as shown in fig. 5, a first power line 7, a second power line 8 and a signal line 9 corresponding to each row of LED beads 2 are arranged along the length direction of the rectangular substrate, the first power line 7 and the second power line 8 are arranged at two sides of the row of LED beads 2, and the signal line 9 is arranged between the first power line 7 and the second power line 8; the LED display screen is designed in such a way that the positions of all lines on the LED display screen are reasonably planned, and the transparent display effect of the LED display screen is prevented from being influenced.

In one embodiment, the transparent substrate 1 is any one of a glass substrate, a PET substrate, a PC substrate, and an acryl substrate. In this example, the transparent substrate 1 is made of any one of glass, PET, PC, acryl, and the like, and the material has high transparency and high cost performance, which is beneficial to reducing the cost.

In an embodiment, as shown in fig. 4, the LED display screen further includes a transparent cover plate 3, where the transparent cover plate 3 covers all the LED lamp beads 2. In this example, LED lamp pearl 2 is located between transparent apron 3 and the transparent substrate 1, and transparent apron 3 and transparent substrate 1 play the guard action to LED lamp pearl 2, improve the life of LED display screen.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The LED display screen is characterized by comprising a transparent substrate, a control assembly and a plurality of LED lamp beads;

2. The LED display screen of claim 1, wherein the wireless transmission module is any one of a WIFI module and a bluetooth module.

3. The LED display screen of claim 1, wherein the control assembly further comprises a memory module mounted on the MCU module, the memory module for storing the control signals.

4. The LED display screen of claim 1, wherein the LED light beads comprise a housing, a driver chip and a light emitting die, the driver chip and the light emitting die being mounted on the housing, the housing being mounted on the transparent substrate.

5. The LED display screen of claim 1, wherein the PCB board is mounted on one side of the back surface of the transparent substrate along the length direction thereof.

6. The LED display screen of claim 1, wherein the transparent substrate is a rectangular substrate having an aspect ratio of 3:1 to 10:1.

7. The LED display screen of claim 6, wherein all of said LED light beads are distributed in a rectangular array on said transparent substrate.

8. The LED display screen of claim 7, wherein the LED light beads are provided with a first power connection region, a second power connection region, a first signal connection region, and a second signal connection region;

9. The LED display screen of claim 8, wherein the second signal connection regions of the LED light beads of the last column of every two adjacent rows are connected.

10. The LED display screen of claim 1, further comprising a transparent cover plate covering all of the LED light beads.