电子纸的驱动及显示内容控制系统

发布时间：2018-10-26 21:16

【摘要】：电子纸是一种类纸显示技术,它一经出现就得到了人们的关注。一方面,它具有纸一般的显示效果。另一方面,它的能耗特别低。在如今日益强调节能环保的社会里,电子纸的出现不仅可以减少人们对纸张的需求,还可以使人们获得纸质般的阅读体验,因此电子纸作为显示技术的一个发展方向,将会发挥越来越重要的作用。电子纸在作为显示标签使用时需要面临显示刷新的问题,如果所有的标签都通过下载线来接收显示内容必将使整个电子纸显示模块变复杂且不易用,而通过无线方式就可以很好的解决这个问题。无线显示内容的控制不仅使电子纸模块的结构更加简单,使用起来也会更加方便,尤其是在一定范围内对多个显示模块的内容进行修改时,使用无线显示控制会大大提高工作质量和效率。本论文首先介绍了几种不同类型电子纸技术并对这几种电子纸实现方式作了分析对比,还介绍了电子纸常用的三种驱动方式及电子纸显示驱动中一些重要的概念。在深入学习了SSD1608驱动芯片的驱动原理与使用方法后利用MSP430型单片机实现了与驱动芯片的通信连接,并对芯片的显示缓冲数据区、驱动扫描方式及驱动电压等相关参数的设置原理进行了详细阐述,并在此基础上实现了对点阵型电子纸的驱动。在实现对电子纸驱动的基础上,本论文还设计了电子纸显示内容无线控制系统,在实现系统前需要对显示驱动模块的功能进行改进,通过将蓝牙模块集成到显示驱动模块中,并对驱动程序增加数据收发处理及Flash操作程序,使显示驱动模块具备无线数据收发能力。随后设计出显示内容无线控制的上位机,该上位机一方面需要对选取的图片进行处理以满足驱动模块的显示需求,另一方面要通过上位机的串口通信模块完成对蓝牙的无线连接配置及数据收发等操作。最后在系统联合调试的过程中需要对两个系统的数据处理格式及处理速度进行匹配以保证数据收发的正常进行。该系统经过反复测试,可以很好的实现对电子纸显示内容的无线控制,达到了预期设计目的。整套系统使用了低功耗的芯片,蓝牙模块无线通信稳定可靠,电子纸显示效果好,上位机性能稳定功能丰富。
[Abstract]:Electronic paper is a kind of paper display technology. On the one hand, it has paper general display effect. On the other hand, its energy consumption is particularly low. In a society with increasing emphasis on energy conservation and environmental protection, the emergence of electronic paper can not only reduce people's demand for paper, but also enable people to obtain paper-based reading experience. Therefore, electronic paper is a development direction of display technology. Will play an increasingly important role. When the electronic paper is used as a display label, it has to face the problem of display refresh. If all the tags receive the display content through the download line, it will make the whole electronic paper display module complex and difficult to use. And through wireless way can solve this problem very well. The control of wireless display content not only makes the structure of electronic paper module simpler, but also makes it more convenient to use, especially when the content of multiple display modules is modified within a certain range. The use of wireless display control will greatly improve the quality and efficiency of work. In this paper, several different kinds of electronic paper technologies are introduced, and the realization methods of these electronic paper are analyzed and compared. At the same time, three kinds of driving methods commonly used in electronic paper and some important concepts in electronic paper display drive are also introduced. After deeply studying the driving principle and using method of SSD1608 driver chip, the communication connection with the driver chip is realized by using MSP430 microcontroller, and the display buffer data area of the chip is also given. The setting principle of the driving scan mode and the driving voltage and other related parameters are described in detail, and on this basis, the point matrix electronic paper driving is realized. Based on the realization of electronic paper driver, this paper also designs a wireless control system for electronic paper display content. The function of display driver module needs to be improved before the realization of the system, and the Bluetooth module is integrated into the display driver module. Data processing and Flash operation program are added to the driver, so that the display driver module has wireless data transceiver ability. Subsequently, the host computer with wireless control of display content is designed. On the one hand, the upper computer needs to process the selected pictures to meet the display requirements of the driving module. On the other hand, Bluetooth wireless connection configuration and data transceiver should be completed through serial communication module of host computer. Finally, it is necessary to match the data processing format and processing speed of the two systems in the process of joint debugging. After repeated tests, the system can achieve the wireless control of electronic paper display content, and achieve the desired design purpose. The whole system uses low power chip, the Bluetooth module wireless communication is stable and reliable, the electronic paper display effect is good, the host computer performance stability function is rich.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN873

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