体育场全彩 LED 屏系统设计摘 要现代信息社会中，作为信息视觉传播媒体的显示产品和技术得到迅速进展，二十一世纪的显示技术将是平板显示的时代，LED 显示屏作为平板显示的主导产品，无疑会有更大的进展空间，将会在信息显示领域得到广泛应用。体育场全彩 LED 屏可实现赛场信息显示、计时计分、竞赛信息处理与声像同步播放等功能，使体育场满足大型体育赛事和集会的需求。本论文利用 TB62726AF 作为恒流源驱动芯片，直接对单个 LED 发光管进行驱动，使输入每个 LED 管的电流大小恒定，保证每只发光管发光效果一致，从而使全彩 LED 屏具有较好的白平衡效果。此外，本论文还讨论了体育场全彩 LED 屏的系统构成和设计注意事项。关键词 LED； 显示技术； 恒流源STADIUM COLORLEDSCREEN SYSTEM DESIGNABSTRACTIn the modern information society, display product andthe technology asinformation media develops rapidly, the 21st century will be the panel display time, the LED display monitor play a role of panel display’s leading product, would have the vast potential, and would be used in the information displaydomain. The stadium color LED screen would realize functionssuch as informationdemonstration, time and score display, competition information management, and sound and image synchronization broadcast, make the stadium to satisfythe demand of large-scale sports event and assembly. This paper used TB62726AF to be permanentchip, and driven individualLED directly. TB62726AF would make each LED’s electric current to be constant, and guarantee each LED’s effect to beconsistent, thus the color LED screen would have a betterwhite balanced effect. In addition, this paper discussedthe stadium color LED screen system constitution and the designmatters needing attention.KEY WORDSLED; display technology;constant-current source目录中文摘要 I英文摘要 II前 言 11.LED 显示屏设计的理论基础 21.1 LED 显示屏的特点 21.2 LED 显示屏的组成 21.3 LED 显示屏的进展过程 31.4 LE...
