OLED技术发展迅速, 已被广泛地应用在中小尺寸显示之中, 但是在大尺寸显示领域, OLED技术还有一定的局限性。现在唯一的解决方案是白光OLED加彩膜的方式, 但是该工艺方式与器件结构十分复杂, 导致了极低的材料利用率、高难度真空工艺、高能耗、以及高昂的制造成本。通过分析各种潜在的显示技术, 喷墨印刷技术脱颖而出, 该技术具备诸多的优势, 如：极高的材料利用率、非真空工艺、低成本、简单的器件结构, 以及可适用于顶发射器件结构等。

OLED technology is developing very fast, which has been widely implemented in small-median size applications. However, in the large size display area, OLED technology still has its limitations, and the only solution so far is WOLED plus color filter. But in order to fabricate WOLED display, a very complicated process and device architecture is deployed, which could result in low material usage, high vacuum process, high energy consumption and high manufacture cost, etc.. By reviewing all the potential innovative display technologies, ink-jet printing technology stands out, which can be used to fabricate both OLED and QLED display. It has many advantages, such as high material usage, non-vacuum process, lower cost, simple device architecture, and is suitable for top emission device architecture, etc..