Led display controller to display a variety of text and graphics based. Users in the daily life of the led display controller often have a variety of problems, the following Oreda for the majority of customers summed up the led display controller of the common problems.
1, What is the led display controller
Led display controller, also known as LED asynchronous control system or led display control card, LED graphics display is the core components. Is responsible for receiving the screen from the computer serial port display information, into the frame memory, according to the district drive to generate led display display serial display data and scan control timing.
2, Embedded real-time + off two-in-one controller is how to control the display
Embedded real-time + offline display, mainly by the DVI transmitter controller or 1000M network card, CPU, memory (SD card), display scan driver composed of four parts. After power-on, the system initialization, CPU from the memory (SD card) out of the user to save the display content, into the led display can restore the contents of the user editing. (The user edited the contents of the communication through the LAN into the controller). When the CPU detects the real-time information is sent, it will automatically switch the data channel, so that the display to real-time display. Real-time display is the highest priority of the display.
3, Embedded real-time + offline two-in-one controller audio processing problems
In the offline state, the controller has a built-in audio processor that can play audio offline. But in real-time state of the audio through the DVI transmitter controller (or 1000M network card) on the real-time audio acquisition, through the 1000M network cable sent to the controller, through the audio player chip to play. So the controller's audio can be real-time, off-line arbitrary switch.
4, Real-time + offline two-in-one controller for what occasions
Real-time + off-line combo controller, to adapt to many occasions. And the display can be used without the computer can be used. Led display completely put aside the concept of asynchronous synchronization, is a revolution in the application of the screen.
Not applicable places: TV screen, large display
5, The controller can achieve group control?
Control card, with Ethernet (LAN) interface, can be convenient networking. Through the computer in the LAN to control the network display, suitable for group screen publishing information.
6, The controller can play animation and video offline
The controller can directly accept a variety of video format files, the software automatically processed into the screen to adapt to the size, do not need to cut into bitmap, directly to MPEG4, AVI, FLV, BMP, etc. sent to the control card format.
7, Led display display images need to gray it?
The picture on the computer are full color, in order to restore the true effect, only the full color LED can do. In the monochrome led screen can only display patterns, two-color screen display picture is more like black and white photos (also must have gray level). The so-called gray scale refers to the LED performance of the image of the indicators, there is no gray words can only display words and patterns.