一種量子點型式的 Micro-LED顯示裝置結構分析研究

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Title:	一種量子點型式的 Micro-LED顯示裝置結構分析研究
Authors:	楊宗燁;Yang, Zong-Ye
Contributors:	機械工程學系
Keywords:	微型發光二極體;量子點;全彩顯示器;光學串擾
Date:	2025-08-28
Issue Date:	2025-10-17 13:18:25 (UTC+8)
Publisher:	國立中央大學
Abstract:	全彩Micro-LED顯示器製程中，巨量轉移技術是實現商業化的關鍵，但其高成本和難度促使研究人員探討以量子點顏色轉換層替代，以減少技術依賴。此方法使用藍光Micro-LED作為激發源，搭配紅、綠量子點轉換層來產生RGB三色子像素，有效降低紅光和綠光Micro-LED的需求。因量子點無法完全吸收藍光，剩餘藍光可能影響顯示效果，需額外加裝濾光片吸收多餘藍光。本研究改以紫外光作為激發源，藉此消除多餘光對色域的影響，並使用統一濾光片吸收紫外光，以簡化製程並降低成本。本研究聚焦於量子點型Micro-LED顯示裝置的設計、性能優化與結構分析，以期提升其光學特性和製程效率。首先，我們探討了紫外光和藍光LED晶片作為激發源對RGB和RG量子點元件發光特性的影響，並建立了仿真追跡設計模型，對該模型進行深入設計與分析，以優化量子點型Micro-LED顯示裝置的光學輸出。在結構設計方面，我們研究了量子點型Micro-LED顯示裝置結構對光使用效率的影響，並提出降低串擾的結構設計方案。此外，考量巨量轉移製程及LED晶片失效等因素，針對裝置結構進行優化設計，以提升生產良率與穩定性。最後，我們對量子點型Micro-LED顯示裝置進行了色純度研究，並對優化後裝置的光學特性進行綜合分析，以達成優異的全彩顯示效果。 ;In the manufacturing process of full-color Micro-LED displays, mass transfer technology is essential for commercialization but faces challenges due to its high cost and complexity. To address this, researchers have explored quantum dot (QD) color conversion layers as an alternative. This approach uses blue Micro-LEDs as the excitation source, combined with red and green QD layers, to create RGB subpixels, reducing the need for red and green Micro-LEDs. However, residual blue light from incomplete absorption by QDs can affect display quality, requiring additional filters to block excess blue light. This study proposes using ultraviolet (UV) light as the excitation source to avoid residual light interference with the color gamut. A unified filter absorbs UV light, simplifying the process and lowering costs. The research focuses on designing and optimizing quantum dot-based Micro-LED display devices to enhance optical performance and manufacturing efficiency. We investigated the emission characteristics of RGB and RG QD components under UV and blue LED excitation and developed a simulation model for optimizing optical output. Structurally, we analyzed how design impacts light utilization efficiency and introduced solutions to reduce crosstalk. Considering challenges like mass transfer and chip failures, the device structure was refined to improve yield and stability. Finally, we studied the color purity and conducted a comprehensive analysis of the optical performance of the optimized devices, achieving high-quality full-color display results.
Appears in Collections:	[Graduate Institute of Mechanical Engineering] Electronic Thesis & Dissertation

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