柔性可折叠AMOLED显示屏驱动系统研究

发布时间：2018-05-03 08:31

本文选题：AMOLED显示屏 + 柔性可折叠　；参考：《苏州大学》2016年硕士论文

【摘要】：AMOLED显示屏由于具有轻薄、对比度高、可以实现柔性显示等优势,被广泛认可为继CRT和TFT-LCD之后的第三代显示器。玻璃基板的AMOLED显示屏经过十余年的发展,技术已趋成熟。而柔性基板的AMOLED显示屏技术处于起步阶段,现各面板厂商正积极进行柔性可弯曲、可折叠显示技术的开发。柔性可折叠AMOLED技术有两个研究方向,本文选取了其中一个技术方向,针对其驱动系统进行了研究。本文的研究内容主要包括:第一,如何解决两颗COF驱动芯片的同步控制问题?本文研究的技术方向采用两颗驱动芯片,而显示屏的画面显示内容需要统一和同步,业界目前无商业化的时序控制器驱动方案,开发专用的时序控制器成本又太高,所以开发一种低成本的解决方案至关重要。第二,完成RGB TTL信号转MIPI信号电路的研究及开发;小尺寸AMOLED显示屏的COF驱动芯片采用的是高速的MIPI信号,自开发的时序控制器采用的是TTL信号,开发一种驱动电路及其控制系统,实现MIPI信号与TTL信号的转换,是开发时序控制器必然会面临的课题。第三,栅极电路控制信号模块的开发;栅极电路属于AMOLED显示屏的核心技术,不同的电路需要配合不同的控制信号,各个面板厂商都期望开发出一种易于修改的栅极电路控制信号模块。
[Abstract]:The AMOLED display screen is widely recognized as the third generation display after CRT and TFT-LCD because of its lightweight, high contrast, flexible display and other advantages. The AMOLED display screen of glass substrate has matured after more than ten years of development. The AMOLED display technology of flexible substrates is in its infancy. Now the panel manufacturers are actively developing flexible flexible and foldable display technology. There are two research directions in flexible foldable AMOLED technology, one of which is selected in this paper, and the driving system is studied. The main contents of this paper are as follows: first, how to solve the synchronization control problem of two COF driver chips? In this paper, two driving chips are used in the technical direction of the research, and the screen display content of the display screen needs to be unified and synchronized. There is no commercialized timing controller driving scheme in the industry, and the cost of developing a special timing controller is too high. So developing a low-cost solution is crucial. Secondly, the research and development of RGB TTL signal to MIPI signal circuit is completed. The small size AMOLED display COF driver chip uses high speed MIPI signal, and the self-developed timing controller uses TTL signal. Developing a driving circuit and its control system to realize the conversion between MIPI signal and TTL signal is an inevitable problem in the development of timing controller. Third, the development of the control signal module of the gate circuit, which belongs to the core technology of the AMOLED display screen, and different circuits need to cooperate with different control signals. Each panel manufacturer expects to develop an easy-to-modify gate circuit control signal module.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN873

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