基于任务队列的电子纸显示屏刷新策略研究

Research on E-Paper Display Refresh Strategy Based on Task Queue

电子纸具有功耗低、静态显示等特点,在屏幕阅读方面有着良好表现,但是由于电子纸刷新速度较慢,当刷新请求过于频繁时,电子纸显示屏会持续刷新,无法及时响应新的刷新请求,这种现象称为刷新拥塞。刷新拥塞会造成系统运行效率低、响应慢等问题,影响用户体验。文章提出一种基于任务队列的电子纸显示屏刷新策略,运用刷新区域合并的机制有效解决了刷新拥塞问题,并且讨论了刷新策略中的内存同步机制。

E-paper performances good in screen-reading with the advantage of low-cost and static display.But due to the slow refresh rate of e-paper,it will do continuous refresh and could not respond to new refresh request in time if there are too many refresh requests.This phenomenon is called refresh congestion.Refresh congestion will result in low system efficiency,slow response and bad user experience.This paper presents an e-paper refresh strategy based on task queue,resolves the problem of refresh congestion by using refresh area merging mechanism,and discusses memory synchronization mechanism of the refresh strategy.