Optical cross-talk reduction in a quantumdot-based full-color micro-light-emitting-diode display by a lithographic-fabricated photoresist mold

作     者：HUANG-YU LIN CHIN-WEI SHER DAN-HUA HSIEH XIN-YIN CHEN HUANG-MING PHILIP CHEN TENG-MING CHEN KEI-MAY LAU CHYONG-HUA CHEN CHIEN-CHUNG LIN HAO-CHUNG KUO 

作者机构：Department of Photonics and Institute of Electro-Optical Engineering National Chiao Tung University Department of Applied Chemistry National Chiao Tung University Department of Electric and Computer Engineering Hong Kong University of Science and Technology Institute of Photonic System National Chiao Tung University 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2017年第5卷第5期

页      面：411-416页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Ministry of Science and Technology Taiwan China(MOST)(MOST104-3113-E-009-002-CC2 MOST105-2622-E-009-023-CC2) 

主　　题：QDs Optical cross-talk reduction in a quantumdot-based full-color micro-light-emitting-diode display by a lithographic-fabricated photoresist mold 

摘      要：In this study, a full-color emission red–green–blue(RGB) quantum-dot(QD)-based micro-light-emitting-diode(micro-LED) array with the reduced optical cross-talk effect by a photoresist mold has been demonstrated. The UV micro-LED array is used as an efficient excitation source for the QDs. The aerosol jet technique provides a narrow linewidth on the micrometer scale for a precise jet of QDs on the micro-LEDs. To reduce the optical cross-talk effect,a simple lithography method and photoresist are used to fabricate the mold, which consists of a window for QD jetting and a blocking wall for cross-talk reduction. The cross-talk effect of the well-confined QDs in the window is confirmed by a fluorescence microscope, which shows clear separation between QD pixels. A distributed Bragg reflector is covered on the micro-LED array and the QDs jetted mold to further increase the reuse of UV *** enhanced light emission of the QDs is 5%, 32%, and 23% for blue, green, and red QDs, respectively.