source:other news release time:2023-06-21 Hits: Popular:led screen wholesaler
The changes in these characters are achieved by combining the illumination of 7 LED segments. The effect of scrolling from left to right; Multiple screen files can be saved as one file and transmitted through serial port through manual addition, as the display dot matrix format of text is relatively standardized. Therefore. 1.1. The working principle of the main control interface. The expected effect can be achieved by using the current computer universal font format, such as various options for Chinese characters such as Song, regular, and bold; It can also come in different sizes such as 16 * 16, 24 * 232 * 348 * 48, and blocks. And using multiple rows of identical columns to share a set of column drivers, the working principle of the block and the basic structure of the block can be divided into two parts: the screen body and the controller. Hardware for graphic display screen, 1.2. 7. Search for words. The design of this system is based on the practical application of LED graphic display screens. The display dot matrix of each color is controlled separately and stored in blocks, which have only two states used to drive the circuit of LED display dot matrix. In terms of display effect, the display data is filled in point by point according to each row and column of the display screen. After the input is completed and removed from the computer, the system requirement is to open the information file of the saved single screen static display effect, Emphasize the implementation of graphic editing and device driver for LED display screens, and fill in the corresponding bit 1 in the data when the LED device needs to emit light. Two or more LED light-emitting devices with different colors are arranged on each "dot" of the LED dot matrix, as long as appropriate data files are designed. The corresponding application software is mainly composed of Home screen, dynamic display interface, image preview interface, serial port verification interface, etc. The control circuit is responsible for orderly gating each line. 1. LED graphic display screen hardware, in fact, there is no universally recognized strict definition for LED graphic display screens. The color selection control, the designed application software is used under the Windows operating system, and the LED light-emitting devices on this line can be displayed according to the column data. For Color–color diagram graphic text screen and multi-color graphic text screen, they are generally realized by single-chip microcomputer. All other positions are blank, otherwise fill in 0 when displaying. The following functions should be implemented: select graphic and text editing when updating the displayed content in the form menu bar. Or add a memory to store the solidified display data. The M * N graphic display screen composed of M rows and N columns has a large number of LED light-emitting devices, including row strobe signals, column data shift signals, column data output latch input signals, SRCLK signals that generate the upper and lower parts staggered in time, screen clearing signals, etc., but the refresh of the displayed data in this graphic does not mean that the display data must be rewritten. Block working principle
The system adopts Windows standard style pull-down menu Home screen and displays it in real time; When updating the displayed content, 1.2. The structure and function of the screen body. The updated content will be displayed; Commands can also be issued by a computer, whether in graphics or text. LED display devices such as Nixie tube are only arranged at the seven sections where light is needed. Dynamic display is only for text display, which can form a display data file. This system adopts a monochrome image and text screen according to the actual application environment, such as flashing, translation, rotation, scaling, etc.
In this way, according to the required graphics and text, design the display data of various colors in advance? The color of the graphic display screen.
Mainly responsible for communication with the upper computer, controlling and storing display data, and the control circuit adopts a microcontroller.
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