Patent ID: 11922864
Assignee: XIAMEN XM-PLUS TECHNOLOGY CO., LTD
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device, comprising: a controller, a power management circuit and N display modules, wherein
each of the N display modules comprises M driving circuits, and M display array sets respectively connected to the M driving circuits, each of the M driving circuits is configured to drive a display array set connected to the driving circuit, and each of the display array sets comprises at least one display array, the display array comprises at least one indicator light, and M and N each represent a positive integer;
the power management circuit is connected to the controller and respective display array sets in the N display modules, and is configured to receive a voltage control signal sent by the controller and output a voltage determined by the voltage control signal to the display array sets to supply power to the display array sets;
for each of the N display modules, M driving circuits in the display module are cascaded through serial control lines corresponding to the display module, and connected to a corresponding IO port of the controller through the serial control lines; and the M driving circuits in the display module are connected to the controller through a sharing data line corresponding to the display module; and
the controller is configured to address the M driving circuits in each of the display modules and read data of the M driving circuits in each of the display modules, through the serial control lines corresponding to the display module, and send information to the driving circuits in the display module through the sharing data line corresponding to the display module, to control the driving circuits and the indicator light; and data is distinguished by different duty cycles on each sharing data line.