彩色LED旋转显示屏的设计

›› 2014, Vol. 27 ›› Issue (10): 178-.

彩色LED旋转显示屏的设计

沈杰,李春生,沙春芳,王忠纯

(盐城师范学院物理科学与电子技术学院,江苏盐城 224002)

出版日期:2014-10-15 发布日期:2014-10-17
通讯作者: 沙春芳(1973—),女,硕士,讲师。研究方向:光电技术应用。E-mail:shachunfang@126.com
基金资助:
2013年江苏省高等学校大学生实践创新训练计划基金资助项目(201310324015Z)

Design of a Color Rotary LED Screen Display

SHEN Jie,LI Chunsheng,SHA Chunfang,WANG Zhongchun

(School of Physical Science and Electronic Technology,Yancheng Teachers University,Yancheng 224002,China)

Online:2014-10-15 Published:2014-10-17

摘要/Abstract

摘要：

为解决普通LED旋转屏显示色彩单一的缺陷,根据时间混色法利用单片机和三色LED设计了一种4 096色LED旋转屏。该旋转屏上的像素颜色编码为12 bit数据,通过4种亮度不同的帧的叠加,实现RGB每种颜色的16级灰度;利用在相邻两列LED显示间隙插入黑时隙的方法,降低了LED显示屏横向显示拖影等问题。经过实测验证表明,系统稳定、显示效果良好。

关键词: LED旋转显示屏, 三色LED, STC12C5A60S2, 时间混色

Abstract:

In order to solve the single-color defect of common rotary LED screen display,the paper presents a design of 4096 color LED POV based on MCU and three-color LED by the principle of temporal mixed color.The color of the pixels is coded with 12 binary digits,and each 16 gray-scale levels of R/G/B is achieved by superposition of 4 frames which have different brightnesses.In addition,the paper presents a way to mitigate the image trails by inserting a dark time slot between the time intervals of displaying two adjacent pixels.Experiments show that the system is stable and has good display effect.

Key words: rotary LED screen display;three-color LED;STC12C5A60S2;temporal mixed color

中图分类号:

TN873.93

沈杰,李春生,沙春芳,王忠纯. 彩色LED旋转显示屏的设计[J]. , 2014, 27(10): 178-.

SHEN Jie,LI Chunsheng,SHA Chunfang,WANG Zhongchun. Design of a Color Rotary LED Screen Display[J]. , 2014, 27(10): 178-.

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