基于拼接法的大幅面电子纸的设计与实现

发布时间：2018-02-13 04:20

本文关键词： 电子纸拼接法大幅面拼接系统　出处：《西安电子科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：电子纸是一种新型的数字信息可视化显示载体，具有轻薄便携、强光下可视、断电后画面保存长久等优点，，被广泛应用于各个领域。在电子导航领域中，许多电子地图产品也开始使用电子纸作为显示媒介。电子地图对屏幕的大小有很高要求，一般要达到A3的尺寸，而现阶段的电子纸屏幕由于驱动技术的瓶颈而无法达到该尺寸。针对这种情况，本文给出了一套基于拼接法实现大幅面电子纸的方案。基于拼接法的电子纸显示系统，使用嵌入式处理器为控制主机，把大尺寸图像进行切割，然后对多个正常尺寸的电子纸屏幕进行控制，在视觉上达到多个屏幕并行显示的效果。本文首先设计并实现了拼接法电子纸屏幕的硬件环境，包括控制模块以及以ARM处理器为核心的主机模块。然后在linux系统中完成拼接后电子纸屏幕的驱动程序。该驱动程序为用户层驱动，在GPIO驱动基础上，实现屏幕切换和电子纸控制指令集，并封装成了接口供应用程序调用。目前，以拼接法实现的大幅面电子纸作为电子地图的显示屏幕，已经应用到了地理信息系统中。在未来，拼接法依然可以成为解决电子纸屏幕尺寸限制的一种思路。
[Abstract]:Electronic paper is a new type of visual display carrier of digital information. It is widely used in various fields because of its advantages such as being light and portable, visible under strong light, and keeping the picture after power off for a long time, etc. In the field of electronic navigation, electronic paper is widely used in the field of electronic navigation. Many electronic map products have also started to use electronic paper as a display medium. Electronic maps have very high requirements for screen size, generally to the size of A3. At present, the electronic paper screen can not reach this size because of the bottleneck of driving technology. In view of this situation, this paper presents a scheme to realize large format electronic paper based on splicing method. The electronic paper display system based on splicing method uses embedded processor as the control host to cut large size images, and then controls several normal size electronic paper screens. In this paper, we design and implement the hardware environment of spliced electronic paper screen. It includes control module and host module with ARM processor as the core. Then the driver of the spliced electronic paper screen is completed in the linux system. The driver is driven by the user layer and is based on the GPIO driver. Implementation of screen switching and electronic paper control instruction set, and encapsulated into an interface for the application to call. At present, large format electronic paper, which is realized by splicing method, has been applied to geographic information system (GIS) as the display screen of electronic map. In the future, splicing method can still become a way to solve the screen size limitation of electronic paper.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.12

【参考文献】