LED display method first step

LED screen, as a new media, sports light-emitting graphic, easier to attract people's attention, informative, updating, have very good effect on advertising and notices. LED screen is more simple than the neon lights, easy to install and use, effect change more, can be updated at any time, it is a good family the visual media. LED screen belongs to high-tech electronic products, the price is higher, concentrated in the government and the unit before use. Technology continues to advance, prices are lower, assembly and maintenance easier. Small LED screen, because the price is cheap, simple installation and use, the long accepted by the public and gradually entered the shop size, application is more popular, gradually began to spread. Application is very wide: new media, new results, new business LED bar screen as a new media, is also a new type of decorative materials, can be embedded into a lot of interior decoration, make the decoration more sporty, constantly updated subtitles, can be used as a new notice board, preferential propaganda and promotion information, etc. Greatly improved the level of interior decoration, has a good visual effect. Due to the installation and use LED bar screen technology content to a certain extent, restrict the development of in the advertising industry. Master LED technology, can improve the technology content of interior decoration, expand the business. Article

the LED screen, because of its simple control, embedded in the equipment of all kinds of public. Font is big, rich move feeling, large amount of information, suitable for long distance, timely broadcast the latest news to the public, to attract the public attention. Widely applied to the queuing system, stops system, water dispensers, etc. Article LED screen control card, function is simple and stable, can be easily embedded into the system, for developers to get rid of the development of LED display troublesome work, will be more attention focused on the function of the system and the innovation. Article LED screen control card development kit, provides detailed development example, the system integration and 2 times for you development provides a good environment.

production of LED display, must first understand the components: unit board, power supply, control CARDS, wires, switch power supply and LED screen control card.

element board is one of the core components of LED display, unit board is good or bad, directly affects the display effect. Unit board, powered by LED module, chip and the PCB. LED modules, is actually made a number of LED point with resin or plastic encapsulated lattice. Drive chip mainly 74 hc595 are needed. 74 hc245/244 74 hc138 4953. Article indoor screen commonly used unit plate specification: parameters: D = 3. 75; From 4. 75 mm wide x16 dot high 64 points, the 1/16 indoor brightness. Glow ChanHong/red and green double color parameter interpretation: diameter: refers to the diameter of the luminous point D = 3. 75 mm markers from 4. 75毫米, - - - Choose according to the distance of the viewer, indoor generally choose 4. X16-75 unit plate size: 64 - - The most commonly used unit board, the most easy to get, and the cheapest prices. 1/16: esau unit board control mode. Indoor brightness: refers to the brightness of the LED point, indoor brightness suitable environment requires fluorescent lamp lighting during the day. Color: ChanHong, the most commonly used, the price is the cheapest. Double color red, green, generally refers to the price is high. If you want to do a 128 x16 dot screens, only need to use the board concatenated up 2 units.

the power generally use is switching power supply, the 220 v input, 5 v dc output. Need to point out that, because the LED display screen are precision electronic equipment, so it USES switch power supply, transformer will not be used. For a single red 64 x16 indoor unit board, all bright, the current is 2 a. Reasoning, 128 x16 double color screen all bright, current of 8 a. Should choose 5 v10a switch power supply.