As an emerging display technology, LED display screens are getting more and more attention. It has the advantages of wide dynamic range, long visual distance, diverse application environments, stable
As an emerging display technology, LED display screens are getting more and more attention. It has the advantages of wide dynamic range, long visual distance, diverse application environments, stable performance and other display technologies that cannot be replaced. It is gradually becoming the preferred technology for disseminating media information in densely populated areas such as airports, leisure squares, stock markets, and large convention and exhibition centers. With the continuous development of LED full-color display technology, the market prospect of LED displays will be broader.
The LED large screen synchronization control system is mainly composed of a sending card and multiple receiving cards. The sending card is mainly composed of DIV video decoding module, FPGA control module, dual SDRAM ping-pong buffer module, Ethernet sending module and other modules; the receiving card is mainly composed of Ethernet Network transceiver module, FPGA control module, SDRAM cache module, LED scan driver module and other modules. According to the specific status and characteristics of the customer's system, a specific solution to improve the LED performance was proposed.
In order to improve the image quality of the large LED screen and improve the visual effect, the inverse γ correction and gray scale conversion brightness adjustment module, contrast and color temperature adjustment module of the video data are designed and improved in the FPGA. In order to realize that the system supports LED screens with different scanning methods and wiring methods, the FPGA remote program upgrade module is designed and improved, which can dynamically modify the FPGA configuration program on the receiving card remotely and in real time to support different screens. Finally realized and optimized the resolution for customers up to 8192*3072, γ value 1-5 continuously adjustable, with 1-16 adjustable gray level, brightness, color temperature, contrast adjustable, with the function of remotely updating the FPGA configuration program A large LED screen synchronous drive system.
LED 显示屏作为一种新兴的显示技术正越来越受到人们的重视。它有着动态范围广，可视距离远，适用环境多样，工作性能稳定等其他显示技术不可替代的优点。它正逐渐成为机场，休闲广场，证券市场，大型会展中心等人口密集地发布媒体信息的首选技术。随着 LED 全彩显示技术的不断发展，LED 显示屏的市场前景将更加广阔。
LED 大屏幕同步控制系统主要由发送卡和和多块接收卡组成，发送卡主要由 DIV 视频解码模块、FPGA 控制模块、双 SDRAM 乒乓缓存模块、以太网络发送模块等模块组成；接收卡主要由以太网络收发模块、FPGA 控制模块、SDRAM 缓存模块、LED 扫描驱动模块等模块组成。根据客户系统的具体现状和特点，提出了提升LED性能的具体解决方案。
为了提高 LED 大屏幕显示图像质量，提高视觉效果，在 FPGA 里面设计并改进了视频数据的反 γ 矫正与灰度等级变换亮度调节模块、对比度与色温调节模块。为了实现系统支持不同扫描方式与走线方式的 LED 屏体，设计并改进了 FPGA 的远程程序升级模块，可远程实时动态的修改接收卡上 FPGA的配置程序，来支持不同的屏体。最终为客户实现并优化了分辨率可达 8192*3072，γ 值 1-5 连续可调，具有 1-16 可调灰度等级，亮度、色温、对比度可调、具有远程更新 FPGA 配置程序功能的一个 LED 大屏幕同步驱动系统。
LED 显示屏作为一种新兴的显示技术正越来越受到人们的重视。它有着动态范围广，可视距离远，适用环境多样，工作性能稳定等其他显示技术不可替代的优点。它正逐渐成为机场，休闲广场，证券市场，大型会展中心等人口密集地发布媒体信息的首选技术。随着 LED 全彩显示技术的不断发展，LED 显示屏的市场前景将更加广阔。
LED 大屏幕同步控制系统主要由发送卡和和多块接收卡组成，发送卡主要由 DIV 视频解码模块、FPGA 控制模块、双 SDRAM 乒乓缓存模块、以太网络发送模块等模块组成；接收卡主要由以太网络收发模块、FPGA 控制模块、SDRAM 缓存模块、LED 扫描驱动模块等模块组成。根据客户系统的具体现状和特点，提出了提升LED性能的具体解决方案。
为了提高 LED 大屏幕显示图像质量，提高视觉效果，在 FPGA 里面设计并改进了视频数据的反 γ 矫正与灰度等级变换亮度调节模块、对比度与色温调节模块。为了实现系统支持不同扫描方式与走线方式的 LED 屏体，设计并改进了 FPGA 的远程程序升级模块，可远程实时动态的修改接收卡上 FPGA的配置程序，来支持不同的屏体。最终为客户实现并优化了分辨率可达 8192*3072，γ 值 1-5 连续可调，具有 1-16 可调灰度等级，亮度、色温、对比度可调、具有远程更新 FPGA 配置程序功能的一个 LED 大屏幕同步驱动系统。
