| 《4位7段LED的8级灰度显示》实验设计 |
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| 引用本文： | 钟建,蒋泉,饶海波,吴援明,杨刚,张磊,陈文彬.《4位7段LED的8级灰度显示》实验设计[J].实验科学与技术,2008,6(3):20-22. |
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| 作者姓名： | 钟建 蒋泉 饶海波 吴援明 杨刚 张磊 陈文彬 |
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| 作者单位： | 电子科技大学光电信息学院,成都,610054 |
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| 摘 要： | 对《4位7段LED的8级灰度显示》实验教学设计与实践进行了探讨。通过对实验系统的构建与实验结果的分析，培养学生的动手实践能力，强化了学生综合实验素质的训练。针对现有的LED显示屏，学生能掌握7段LED驱动器HEF4543的结构原理和应用电路，测量LED的驱动波形信号；掌握占空比调制灰度原理，并测量亮度一占空比曲线。
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| 关 键 词： | 发光二极管 灰度 占空比 |
Design and Practice in Experiment of 4-Digit LED 8-Gray Scale Display |
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| ZHONG Jian,JIANG Quan,RAO Hai-bo,WU Yuan-ming,YANG Gang,ZHANG Lei,CHEN Wen-bin.Design and Practice in Experiment of 4-Digit LED 8-Gray Scale Display[J].Experiment Science & Technology,2008,6(3):20-22. |
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| Authors: | ZHONG Jian JIANG Quan RAO Hai-bo WU Yuan-ming YANG Gang ZHANG Lei CHEN Wen-bin |
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| Institution: | (University of Electronic Science and Technolo of China, Chengdu 610054, China) |
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| Abstract: | Experiment of a LCM (LCD module), which is attributed to driving technology of display devices of UESTC, is introduced in this paper. After the program is debugged and compiled, a PC sends it to a single chip to control DCM162B LCM by an ISP download circuit. The students can master the applied circuits of HD44780 and improve the ability to design the driving program through the experiment. |
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| Keywords: | LED gray-scale duty |
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