液晶与显示
液晶與顯示
액정여현시
CHINESE JOURNAL OF LIQUID CRYSTALS AND DISPLAYS
2010年
2期
253-256
,共4页
彩色LED屏%扫描控制器%LED%PWM%FPGA
綵色LED屏%掃描控製器%LED%PWM%FPGA
채색LED병%소묘공제기%LED%PWM%FPGA
colour LED screen%scanning controller%LED%PWM%FPGA
介绍了基于PWM的LED亮度控制方法,分析了数字LED屏设计的难点和关键技术,重点讨论了LED屏扫描控制器的设计,提出了一种基于FPGA的实现方法.实验证明,使用该方法设计的LED扫描控制器结构灵活、性能优越,可以满足室内外彩色LED视频显示的要求.
介紹瞭基于PWM的LED亮度控製方法,分析瞭數字LED屏設計的難點和關鍵技術,重點討論瞭LED屏掃描控製器的設計,提齣瞭一種基于FPGA的實現方法.實驗證明,使用該方法設計的LED掃描控製器結構靈活、性能優越,可以滿足室內外綵色LED視頻顯示的要求.
개소료기우PWM적LED량도공제방법,분석료수자LED병설계적난점화관건기술,중점토론료LED병소묘공제기적설계,제출료일충기우FPGA적실현방법.실험증명,사용해방법설계적LED소묘공제기결구령활、성능우월,가이만족실내외채색LED시빈현시적요구.
The brightness control method based on PWM is introduced. The difficult prob
lems and key technology of digital LED screen are analyzed. The design of scanning controller for large scale LED screen is discussed, and a solution of scanning controller based on FPGA is proposed. The experiment results showed that the structure of the newly-designed scanning controller was flexible, its performance is excellent, and the LED screen controlled by this scanner is suitable for indoor and outdoor video display.
