What are the commonly used ics for LED large screens? The following is a simple summary of common ics for your reference:
< br >
74HC245 function: signal power amplification, two-way 3-state data buffer (without latch), is to provide high load capacity for the chip with low output capacity;
< br >
74HC138 function: octagonal binary decimal decoder;
< br >
4953 function: line drive tube, power tube;
< br >
74HC595 function: column drive tube, LED drive chip, 8-bit shift latch (main indoor unit board);
< br >
Taiwan accumulation MBI5024, MBI5026, Japan Toshiba TB62726 function: LED driver chip, 16-bit shift latch (mainly used for outdoor modules); Its function is similar to 74HC595, except that the TB62726 is a 16-bit shift latch with output current adjustment function, but there is no high level on the parallel output outlet, only high resistance state and low level state. The 74HC595 parallel output has high and low level outputs, and the TB62726 has the same pin function as the 5026, and the structure is similar.
< br >
LED display (LED display) is a flat panel display, composed of a small LED module panel, used to display text, images, video, video signals and other information equipment.
< br >
LED (light emitting diode). It is a diode made of gallium (Ga) and arsenic (As), phosphorus (P), nitrogen (N), indium (In) compounds by controlling the display of semiconductor light-emitting diodes, and can radiate visible light when electrons and holes are combined, so it can be used to make light-emitting diodes. Used as an indicator in circuits and instruments, or as part of a text or numeric display. Gallium phosphatide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and indium gallium nitrogen diodes emit blue light.