Borut Šuštar (2009) State of the art analysis of flexible screen development with programming prototype using e-paper. EngD thesis.
Abstract
The developmet of flexible display technology has made considerable progress in recent years. The recent development promises and opens up new applications for displays which do not exist today. This type of applications includes various potential products, such as an electronic newspaper, a large wall screen that could be rolled away when not in use, a television in tapestry, a PDA that could be rolled up into a pen, etc. The technology of flexible displays is not yet sufficiently developed to enable the use of those applications. Many flexible display prototypes have been already developed, but they have not sufficient properties for successful use in mass production at the moment. The main problem is the lack of flexibility, which is strongly restricted due to non-organic materials, which consist of a flexible display. This leds to a variety of defects upon bending, which limit the functionality or even destroy the display. To this end, it will be necessarily to develop alternative materials which will enable a good display flexibility. The best commercial success has so far reached flexible segmental electronic paper display, which is successfully used in many applications. This thesis describes the technology of flexible displays. It includes the individual supporting technologies, which consist of a flexible display, deficiencies, problems, possible improvements, and the types of flexible displays. It also presents my work in the company EPTS d.o.o. My intention of work in the company was precisely to find out the principle of operation of the electronic paper. I did two tasks. At the first task, i programmed the microcontroller, which controlls electronic paper display and at the second task, i tested the operation of the display at low temperatures.
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