Although the organic light-emitting devices (OLEDs) encompassing TVs, smartphones, and wearable devices, etc. already have been commercialized, there is still room to pursue material improvements in efficiency and cost-effectiveness. Organic light-emitting materials have experienced the development of the three generation system, it is timely to summary the recent advances and the remaining challenges of the materials as well as their corresponding devices. Special attention is mainly concentrated on describing the blue material structures and related electroluminescence (EL) device performances (the maximum EQE data, Commission Internationale de l’Eclairage (CIE) coordinates, and efficiency roll-off). This short review will show the current governing hotspots concerning OLEDs in academic fields, which may pave the way for next step of industrial application.

中文翻译：

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用于OLED的高效供体-受体型蓝色小分子的最新进展

尽管包括电视、智能手机和可穿戴设备等在内的有机发光器件 (OLED) 已经商业化，但在效率和成本效益方面仍有追求材料改进的空间。有机发光材料经历了第三代系统的发展，现在总结一下材料及其相应器件的最新进展和剩余挑战。特别关注主要集中在描述蓝色材料结构和相关的电致发光 (EL) 器件性能（最大 EQE 数据、国际照明委员会 (CIE) 坐标和效率滚降）。这篇简短的评论将展示当前学术领域关于 OLED 的管理热点，