Led display unit with angularly adjustable connecting structure

A display unit of a rolling LED floor display screen, comprising:

• a strip-shaped section assembly having two sides;
• an LED lamp panel includes a main body and is arranged on one surface of the strip-shaped section assembly, and connected to the strip-shaped section assembly;
• the main body comprises a four-layer glass fiber circuit board, a plurality of openings formed in an edge of a bottom layer of a back surface of one side of the four-layer glass fiber circuit board, a neck formed in a third layer of the other side of the four-layer glass fiber circuit board, wherein the neck is configured for integrally forming and pressing in the thin steel sheet;
• stepped mounting structures provided at two sides of the strip-shaped section assembly;
• a plurality of lamp panel screw holes and a plurality of longitudinal connecting screw holes provided at each stepped mounting structure;
• a longitudinal connecting assembly configured for connecting two adjacent display units, and located in the middle of the thickness of the display units of rolling LED floor display screens, the longitudinal connecting assembly configured to enable the angles between the two adjacent display units, wherein the longitudinal connecting assembly is a thin steel sheet clamped in the main body of the LED lamp panel;
• a plurality of studs;
• a plurality of lugs arranged on one side of the thin steel sheet, the plurality of lugs correspondingly pressed in the plurality of openings, compressed and fixed by the longitudinal connecting screw holes and the studs on the stepped mounting structures, and configured for connecting the two adjacent display units;
• a power wire port and a power wire connected to the LED lamp panel through the power wire port;
• a signal line port formed in both sides of the strip-shaped section assembly, and a signal line connected to the LED lamp panel through the signal line port;
• a transverse lifting cotton belt port is formed in the strip-shaped section assembly;
• a receiving card port formed in the strip-shaped section assembly;
• a receiving card correspondingly clamped in the receiving card port and in signal control connection with the LED lamp panel, the signal line connected to the receiving card and configured to transmit a control signal to the LED lamp panel assembly by the receiving card;
• a lamp panel power socket connected to a power wire which passes through the power wire port;
• a lamp panel signal socket arranged on the main body and connected to the receiving card;
• the main body is provided with a screw connector connected to the strip-shaped section assembly, and to the strip-shaped section assembly by screws;
• a transverse lifting cotton belt cover plate arranged on the strip-shaped section assembly, and configured to cover the transverse lifting cotton belt port, and connected to the strip-shaped section assembly.