LED display control card analysis
LED display control card program classification synchronous led display control card,, and asynchronous led display control card, our main production and sales of LED asynchronous control card.
LED display control card is the core component of the led display, the display shows the various symbols, text and graphics-based, the screen displays information edited by the computer via RS232/485, USB flash disk, or other means of communication transmitted to the display shows results. Colorful display mode, you can work offline. LED display because of its flexible control, easy to operate, low cost, has a wide range of applications in all areas of society.

Synchronous led display control card
Synchronous led control card, mainly used for real-time display video, graphics, and notice. Mainly used for indoor or outdoor full color large-screen display. Synchronization led control card system to control the LED display work is substantially equivalent to the computer monitor, the dots corresponding to the update rate of at least 60 frames / sec real-time mapping of the image on a computer monitor, typically have a multi-gradation color display capabilities can be achieved by multimedia advertising effect. Its main features are: real-time, rich and expressive, more complex, high prices. Set of synchronization led display control card system by sending cards, reception cards, and DVI graphics card. Synchronous led display control card.
Asynchronous LED display control card, also known as off-line LED control card or offline card. Mainly used to display a variety of text, symbols and graphics or animation. The screen displays the information by a computer editing, pre-populated with RS232/485 serial port led display frame memory, then one screen to display the playback, the cycle display colorful and diverse. Its main features are: simple operation, low prices, a wider range of use. Simple asynchronous led control card can only display digital clock, text, special characters. Graphic asynchronous led control card in addition to a simple control system functions, the biggest feature is the sub-regional control the contents of the display screen. Supports analog clock, countdown, pictures, tables and animation. Timer switch, temperature control, humidity control and other functions.

The composition of the synchronous led control card
Sending card is to be displayed by the LED display requires a specific format and broadcast order the other hand, displayed on the VGA monitor screen capture card is sent to the control panel, capture cards displayed on a VGA monitor; VGA graphics card interface card between the led screen.
Receiving card is over the video signal transmission and reception card transfer (control and data signals), the data in the video signal is separated after the planes, breakout stored in the external cache, and then partition read out and transmitted to the display driver screen.