| 彩色LED旋转显示屏的设计 |
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| 引用本文： | 沈杰,李春生,沙春芳,王忠纯.彩色LED旋转显示屏的设计[J].电子科技,2014,27(10):178-181. |
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| 作者姓名： | 沈杰 李春生 沙春芳 王忠纯 |
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| 作者单位： | (盐城师范学院 物理科学与电子技术学院,江苏 盐城 224002) |
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| 基金项目： | 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 |
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| 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。
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| 关 键 词： | LED旋转显示屏 三色LED STC12C5A60S2 时间混色 |
Design of a Color Rotary LED Screen Display |
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| SHEN Jie,LI Chunsheng,SHA Chunfang,WANG Zhongchun.Design of a Color Rotary LED Screen Display[J].Electronic Science and Technology,2014,27(10):178-181. |
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| Authors: | SHEN Jie LI Chunsheng SHA Chunfang WANG Zhongchun |
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| Institution: | (School of Physical Science and Electronic Technology,Yancheng Teachers University,Yancheng 224002,China) |
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| 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. |
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| Keywords: | rotary LED screen display three-color LED STC12C5A60S2 temporal mixed color |
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