Module Resolution: 32*16dots
Module size: 256*128mm
Pixel pitch: 8mm
Pixel sensity: 15625
Lamp bead: 3535
Average consumption: 400w/sqm
Max power consumption: 1000w/sqm
Best view distance: 6-60m
Best view angle: 160`
Brightness: >2000cd/m2
Scanning: 1/4
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Led display controller design
First, the design of the main functional modules
At present, the display mode of data transmission mainly includes two types: synchronous display and offline display. The LED display control introduced in this paper is a synchronous display system, which uses a set of embedded systems to provide video source for LED display, which can reduce cost, high feasibility and flexibility, and easy construction.
Second, independent video LED system
1. The main performance indicators of LED display screens include field scanning frequency, resolution, gray level and brightness. Obviously, it is necessary to make appropriate trade-offs for these three performance indicators in different applications. Therefore, the field scanning frequency and gray The degree and brightness are usually determined by the controller, and the resolution can be greatly improved by means of the controller array. In the controller implemented in this paper, through the form of the controller array, two-way optical fiber data output is obtained, and a large LED display control area (2048*768) is realized, thereby realizing a color-complete full-color large-screen LED display.
2. The independent video LED system is completely out of the control of the computer, and can realize functions such as communication, video playback, data distribution, and scanning control.
3. The control system can obtain the video stream in RGB format by decoding the video data. Then, through the data distribution unit, the data is separately sent to different LED display controllers, and the controller displays the data provided by the playback unit to the full-color large-screen LED.
Third, the video data distribution program.
Since the controller controls large frame data (for example, 1024*768), it is necessary to allocate data provided by the video source, and correctly send data of different ranks to different controllers.Led Banner factory

  • Created: 13-05-20
  • Last Login: 13-05-20

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