InGaN blue resonant cavity micro-LED with RGY quantum dot layer for broad gamut, efficient displays

IF 4.703 3区 材料科学 Nanoscale Research Letters Pub Date : 2024-04-30 DOI:10.1186/s11671-024-04018-4
Tzu-Yi Lee, Chien-Chi Huang, Yu-Ying Hung, Fang-Chung Chen, Yu-Heng Hong, Hao-Chung Kuo
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Abstract

The technology of RGBY micro resonant cavity light emitting diodes (micro-RCLEDs) based on quantum dots (QDs) is considered one of the most promising approaches for full-color displays. In this work, we propose a novel structure combining a high color conversion efficiency (CCE) QD photoresist (QDPR) color conversion layer (CCL) with blue light micro RCLEDs, incorporating an ultra-thin yellow color filter. The additional TiO2 particles inside the QDPR CCL can scatter light and disperse QDs, thus reducing the self-aggregation phenomenon and enhancing the eventual illumination uniformity. Considering the blue light leakage, the influences of adding different color filters are investigated by illumination design software. Finally, the introduction of low-temperature atomic layer deposition (ALD) passivation protection technology at the top of the CCL can enhance the device's reliability. The introduction of RGBY four-color subpixels provides a viable path for developing low-energy consumption, high uniformity, and efficient color conversion displays.

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带有 RGY 量子点层的 InGaN 蓝色谐振腔微型 LED,用于宽色域高效显示器
基于量子点(QD)的 RGBY 微型谐振腔发光二极管(micro-RCLED)技术被认为是最有希望实现全彩显示的方法之一。在这项工作中,我们提出了一种新型结构,将高色彩转换效率(CCE)量子点光刻胶(QDPR)色彩转换层(CCL)与蓝光微型 RCLED 相结合,并加入了超薄黄色滤光片。QDPR CCL 内增加的 TiO2 颗粒可以散射光并分散 QD,从而减少自聚集现象,提高最终的照明均匀性。考虑到蓝光泄漏,照明设计软件研究了添加不同颜色滤光片的影响。最后,在 CCL 顶部引入低温原子层沉积(ALD)钝化保护技术可以提高器件的可靠性。RGBY 四色子像素的引入为开发低能耗、高均匀性和高效色彩转换显示器提供了一条可行之路。
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来源期刊
Nanoscale Research Letters
Nanoscale Research Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
15.00
自引率
0.00%
发文量
110
审稿时长
2.5 months
期刊介绍: Nanoscale Research Letters (NRL) provides an interdisciplinary forum for communication of scientific and technological advances in the creation and use of objects at the nanometer scale. NRL is the first nanotechnology journal from a major publisher to be published with Open Access.
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