Schematic diagram of LED display screen.P3.91 indoor LED display

　　However, considering the flexibility and universality of the storage and design of display data, the screen body is mainly composed of LED and row and column drive circuits. The function of the LED graphic display screen software system is to achieve online dynamic display and update some or all of the display content of the LED graphic display screen system. With the support of the application software, various control signals are used to make the display screen work normally, 1.2. 6. Control signal. 1. LED graphic display screen software, therefore relatively inexpensive.

　　How to set up a random access memory to receive data from the upper computer and save it? Obtain satisfactory display results.

　　The information displayed by Nixie tube is limited. And using dot matrix to form graphics or text. The control method for each color is identical to that of a single color and is stored in memory. Static display driver circuits are not suitable, and red LED dot matrix data units are used, which are sent to their respective display dot matrices during display. Need to add Chinese character templates, which can be combined and changed as needed, and add dynamic effects. The adjustment before file transfer and the setting function before device communication are controlled by controlling all LEDs on the dot matrix. But.

　　It is completely possible to achieve a perceptible static and motionless effect through scanning driving - static display mode; Various dynamic display modes can be realized by constantly controlling and refreshing the display data over time. The computer will download the entered text or graphic data to the master controller. Before selecting each line, the data in each column of the line should be prepared. Each color has its own display matrix, which can be directly generated from the original display data through certain algorithms. The LED dot matrix light-emitting devices either light up or go out.

　　Choosing a certain number of LEDs is very flexible and can be completed by wiring logic, which controls the LED devices that emit light corresponding to the positions of the points that make up these control shapes or text.

　　By manually setting? Each LED light emitting device occupies one bit in the data.

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