Display module and display box

Abstract

The embodiment of the invention discloses a display module and a display box. The display module comprises, for example, a display control chip provided with a first differential signal pin group and a second differential signal pin group; the display driving circuit is provided with a third differential signal pin group and a driving current output pin group; the display unit array is electrically connected with the driving current output pin group; the display control chip receives the first LVDS data packet through the first differential signal pin group, analyzes and processes the first LVDS data packet to obtain image data and control information, re-packs the image data and the control information to obtain a second LVDS data packet, and outputs the second LVDS data packet to the display driving circuit through the second differential signal pin group; and the display driving circuit analyzes the second LVDS data packet to generate driving current and outputs the driving current to the display unit array for driving display. Communication lines between the display module and preceding-stage equipment can be reduced, the design complexity of the display module is reduced, and the transmission stability of signals is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display module and a display box. Background technique [0002] With the update of market demand and technological progress, LED display screens are always developing in the direction of smaller pitches, bringing about continuous innovation of the entire industrial chain, and putting forward proposals on the performance, volume, power consumption, and ease of use of the LED display control system. higher requirements. [0003] At present, the LED display control system is mainly composed of video source, sending card, receiving card and LED display. An LED display is generally composed of multiple LED cabinets, and a single LED cabinet contains multiple cascaded LEDs. The general working process of the module and LED display control system is as follows: the FPGA in the receiving card receives the image data packet from the sending card through the network port, performs imag...

AI Technical Summary

Problems solved by technology

[0004] However, the existing multi-core cable connection method has many disadvantages. For example, there are many signals transmitted between the receiving card and the LED module, including RGB data signals, CLK clock control signals, LAT latch control signals, and OE enable Signals and other control signals lead to too many communication lines between the receiving card and the LED module, resulting in complicated wiring inside the LED module. A problem with a single communication line will cause the LED display to display abnormally; for example, a single cable The available data bandwidth is only 30Mbps, so the frequency of the designed CLK clock control signal does not exceed 30Mhz. If you want to

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