We propose a patterned cholesteric liquid crystal (CLC) polymer film as a self-assembled Bragg reflector to enhance the performance of a color-converted micro-light-emitting diode (LED) display system. In the display system, we firstly optimize the device structure of blue LED chip to maintain a high light extraction efficiency and low optical crosstalk. Next, we fabricate several patterned CLC films with feature sizes ranging from 10 to 80 μm. By integrating the patterned CLC film into a color-conversion micro-LED display, the optical efficiency is doubled while keeping a color gamut of about 90% Rec. 2020. Finally, we carry out a proof-of-concept experiment to validate the functionality of such a patterned CLC film.

中文翻译：

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带有图案化胆甾型液晶聚合物薄膜的彩色转换微发光二极管显示器的光学效率加倍

我们提出图案化的胆甾型液晶（CLC）聚合物膜作为自组装布拉格反射器，以增强彩色转换的微发光二极管（LED）显示系统的性能。在显示系统中，我们首先优化了蓝色LED芯片的器件结构，以保持较高的光提取效率和较低的光学串扰。接下来，我们制作几幅图案化的CLC膜，其特征尺寸为10至80μm。通过将图案化的CLC薄膜集成到色彩转换微型LED显示器中，在保持约90％Rec。色域的同时，光学效率提高了一倍。2020年。最后，我们进行了概念验证实验，以验证这种带图案的CLC膜的功能。