The down-conversion white OLED is one of the simple and effective ways for OLED display and lighting; it consists of a color conversion layer (CCL) and a blue-emitting source of the OLED. This paper introduces a process for adhesive transfer (AT) of phosphor particles to improve the light extraction efficiency and uniformity. The CCL formed by AT shows a surface fill factor of 91.6%, and is 5.5 times thinner than the one formed by wet-casting. In particular, the CCL fabricated by AT on a blue OLED achieved a 166% higher luminous efficiency than the wet-cast CCL. The effect of an extra non-emitting particle layer on top of the CCL fabricated by AT was also investigated and significant improvement was observed in both areal and angular uniformities (up to 99%). This transfer process for fabricating the CCLs is expected to play an important role in producing OLED displays and lighting with high efficiency at low cost.

下转换型白色OLED是OLED显示和照明的简单有效的方法之一。它由颜色转换层（CCL）和OLED的蓝色发射源组成。本文介绍了一种用于磷光体颗粒的粘合剂转移（AT）的方法，以提高光提取效率和均匀性。由AT形成的CCL显示出91.6％的表面填充率，并且比通过湿铸形成的CCL薄5.5倍。尤其是，由AT在蓝色OLED上制造的CCL的发光效率比湿法浇铸的CCL高出166％。还研究了在AT制造的CCL顶部上额外的不发光粒子层的影响，并且在面积和角度均匀性（高达99％）方面均观察到了显着改善。