Lamp panel module group, box body, and LED display screen system

Abstract

The invention relates to a lamp panel module group, a box body employing the same, and an LED display screen system. The lamp panel module group comprises an LED drive chip, a plurality of LED lamp points which are electrically connected with the LED drive chip, a nonvolatile storage, and a sensor. The lamp panel module group also comprises an intelligent device, and the intelligent device is electrically connected with the LED drive chip, the nonvolatile storage and the sensor and is provided with a serial communication interface. The intelligent device is used for receiving an image data package through the serial communication interface, then analyzing the image data package, generating a control signal for controlling the time sequence of the LED drive chip so as to drive and control the plurality of LED lamp points for image display through the LED drive chip. Therefore, a connection line between a receiving card and the lamp panel module group can be simplified, the energy consumption of the receiving card is reduced, and the internal space of the box body is saved. Moreover, a system fault risk is reduced, and / or the intelligentization of the lamp panel module group is achieved.

Description

technical field [0001] The invention relates to the technical field of LED display, in particular to a lamp panel module, a cabinet and an LED display system. Background technique [0002] The existing LED display system typically includes a control computer, a sending card, a receiving card (or scanning control board), a monitoring card and an LED display. Among them, the LED display is composed of a box or spliced ​​by multiple boxes, and each box is composed of a light panel module or spliced ​​​​by multiple light panel modules, and a single light panel module Including one or more LED light boards; in addition, the receiving card is configured in each box, in the actual operation process, it is usually necessary to have an adapter board (or Hub board) to cooperate with the receiving card, and the monitoring card is in the image At the end of data transmission, the display data is recovered and sent back to the receiving card. The functions of the LED display system inc...

AI Technical Summary

Problems solved by technology

[0006] (1) Each single-ended signal needs to occupy one wire core, resulting in a large number of wire cores for wiring. Taking a conventional 8-scanning light board module as an example, if two sets of RGB data are required, add CLK, LAT, OE, A, B, C and other control signals have a total of 12 single-ended signals, plus at least one ground signal, at least 13-core cable is required; The number of cores of the wire is limited;

[0007] (2) The receiving card directly accesses the memory on the light board module through the SPI interface or I2C interface. There are many signal lines when using the SPI interface. Add two address selection lines), using I2C interface signal lines will be slightly less (I2C interface needs 2 signal lines, if you need to cascade light board modules, you need to add two additional address selection lines), but the communication rate of I2C interface lower (typically 400kbps);

[0008] (3) To realize dead light detection (that is, spot inspection), it is necessary to use a monitoring card to collect and select the display data of the terminal light board module and send it back to the receiving card, but it takes up a lot of space and increases the cost, which also increases a lot of wiring;

[0009] (4) Due to the large number of cable cores, there are also many contact points between the cable and the light board module. If a single core is blocked or in poor contact, the display will be abnormal; When the probability remains the same, the large number of wires greatly increases the unreliability of the entire system, and there is a greater risk of failure; and

[0010] (5) The traditional light board module does not have intelligent devices, and the performance of the light board module must be tested with the help of a receiving card, which makes detection and troubleshooting very inconvenient

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