反馈增强的彩色纯度薄膜用于提高全彩微型led显示屏的色彩饱和度和转换效率

IF 4.3 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Selected Topics in Quantum Electronics Pub Date : 2025-04-24 DOI:10.1109/JSTQE.2025.3564125

Zhi Ting Ye;Po Hsiang Tsai;Chia Hui Chen

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引用次数: 0

摘要

实现全彩微型led显示技术通常需要将红、绿、蓝（RGB）芯片排列成像素，或者将蓝芯片与量子点和其他颜色转换材料结合起来。尽管InP量子点提供了一种无镉的解决方案，但其更宽的半最大光谱全宽度（FWHM）限制了显示器的色彩饱和度。为了提高色彩饱和度和转换效率，本研究提出了一种反馈增强色纯膜（FE-CPF）。本文提出的FE-CPF优化了蓝色微型led光源通过InP绿色和红色量子点构成的转换层后发出的光的FWHM，在提高颜色转换效率的同时获得了较高的颜色纯度。实验结果表明，该微型led蓝光光源的发射波长为447.5 nm。FE-CPF应用于InP量子点颜色转换层后，绿色量子点的色纯度从76.8%提高到95.8%，红色量子点的色纯度从85.4%提高到99.2%。绿光和红光的转换效率分别高出1.45倍和1.51倍。NTSC覆盖率增至145.1%。这种方法在微型led显示屏上的未来应用有望实现高色彩饱和度和高能效的先进全彩渲染。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Feedback-Enhanced Color Purity Film for Improved Color Saturation and Conversion Efficiency in Full-Color Micro-LED Displays

Achieving full-color micro-LED display technology typically involves arranging red, green, and blue (RGB) chips into pixels or combining blue chips with quantum dots and other color-conversion materials. Although InP quantum dots offer a cadmium-free solution, their broader spectral full width at half maximum (FWHM) limits color saturation in displays. This study proposes a feedback-enhanced color purity film (FE-CPF) to improve color saturation and conversion efficiency. The proposed FE-CPF optimizes the FWHM of the light emitted after the blue micro-LED light source passes through the conversion layers made from InP green and red quantum dots, achieving high color purity while enhancing the color conversion efficiency. The experimental results indicate that the micro-LED blue light source emits at a wavelength of 447.5 nm. With the application of FE-CPF to the InP quantum dot color conversion layer, the color purity of green quantum dots increased from 76.8% to 95.8%, and that of red quantum dots increased from 85.4% to 99.2%. The conversion efficiencies of green and red light were 1.45 and 1.51 times higher, respectively. The NTSC coverage increased to 145.1%. Future applications of this approach to micro-LED displays promise advanced full-color rendering with high color saturation and energy efficiency.

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来源期刊

IEEE Journal of Selected Topics in Quantum Electronics 工程技术-工程：电子与电气

CiteScore

10.60

自引率

2.00%

发文量

212

审稿时长

3 months

期刊介绍： Papers published in the IEEE Journal of Selected Topics in Quantum Electronics fall within the broad field of science and technology of quantum electronics of a device, subsystem, or system-oriented nature. Each issue is devoted to a specific topic within this broad spectrum. Announcements of the topical areas planned for future issues, along with deadlines for receipt of manuscripts, are published in this Journal and in the IEEE Journal of Quantum Electronics. Generally, the scope of manuscripts appropriate to this Journal is the same as that for the IEEE Journal of Quantum Electronics. Manuscripts are published that report original theoretical and/or experimental research results that advance the scientific and technological base of quantum electronics devices, systems, or applications. The Journal is dedicated toward publishing research results that advance the state of the art or add to the understanding of the generation, amplification, modulation, detection, waveguiding, or propagation characteristics of coherent electromagnetic radiation having sub-millimeter and shorter wavelengths. In order to be suitable for publication in this Journal, the content of manuscripts concerned with subject-related research must have a potential impact on advancing the technological base of quantum electronic devices, systems, and/or applications. Potential authors of subject-related research have the responsibility of pointing out this potential impact. System-oriented manuscripts must be concerned with systems that perform a function previously unavailable or that outperform previously established systems that did not use quantum electronic components or concepts. Tutorial and review papers are by invitation only.