Article
Optics
Zhe Zhuang, Daisuke Iida, Kazuhiro Ohkawa
Summary: In this study, 5 μm squircle InGaN-based red, green, and blue monochromatic micro-light-emitting diodes were successfully fabricated with a 4 μm interpitch using a H-2-plasma treatment for pixilation of conductive p-GaN. The red mu LEDs exhibited broader full width at half-maximum and larger peak wavelength blueshift at high current densities, showing high on-wafer light output power density and coverage of a wide color gamut based on InGaN RGB technology.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Harel Perlman, Tsion Eisenfeld, Avi Karsenty
Summary: The LENS, a nano light emitting device, is designed for high-resolution display and is a building block of the more complex LENA structure. Studies focused on optimization of pixel geometry, wavelength adaptation, and the development of an analytical model for performance evaluation.
Article
Chemistry, Inorganic & Nuclear
R. B. Basavaraj, Santosh Kumar, D. P. Aarti, G. Nagaraju, H. M. Suresh Kumar, R. Soundar, T. S. Shashidhara, H. N. Sumedha, M. Shahsank
Summary: In this study, orange-red light emitting BaZrO3 (BZO) nanopowders doped with Sm3+ ions were successfully prepared using Aloe vera gel as a surfactant. The structural and optical properties of BZO:Sm3+ were characterized using various techniques, demonstrating its potential for photovoltaic applications as a high thermal stability orange-red light producing element.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Physical
Zinan Chen, Haotao Li, Cuixia Yuan, Peili Gao, Qiang Su, Shuming Chen
Summary: Colloidal quantum-dot-based light-emitting diodes (LEDs) with narrow emission linewidth show great potential for high-precision color displays. However, the industrialization of QLED displays still faces challenges including unclear device mechanisms, low blue performance, and immature color patterning processes. This paper provides a comprehensive review of recent advancements in QLED displays and focuses on device mechanisms, blue QLEDs, and color patterning. Opportunities, challenges, solutions, and future research directions are also summarized.
Article
Engineering, Manufacturing
John H. Lau, Cheng-Ta Ko, Curry Lin, Tzvy-Jang Tseng, Kai-Ming Yang, Tim Xia, Puru Bruce Lin, Chia-Yu Peng, Eagle Lin, Leo Chang, Ning Liu, Show May Chiu, Tzu Nien Lee
Summary: This study investigates the feasibility of mini-LED RGB display fabricated by a chip-first fan-out panel-level packaging, focusing on design, materials, process, fabrication, and reliability. Different colors and sizes of mini-LEDs are considered, with detailed descriptions of spacing and pixel pitch. Additionally, mini-LEDs are grouped into SMD components to increase SMT assembly yield on the PCB.
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Jinhong Park, Hyojin Seung, Dong Chan Kim, Min Sung Kim, Dae-Hyeong Kim
Summary: Extended reality (XR) is a space where physical and digital elements coexist, with environment, human, and computer interacting with each other. Image sensors and displays are core elements of XR systems, crucial for recognizing and judging objects. Recent advancements in image sensors and displays offer new opportunities for developing next-generation XR systems.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
John You En Chan, Qifeng Ruan, Menghua Jiang, Hongtao Wang, Hao Wang, Wang Zhang, Cheng-Wei Qiu, Joel K. W. Yang
Summary: Light field prints displaying 3D information often appear pixelated due to limited resolution and misalignment between lenses and color pixels. Here, the authors present a one-step process via two-photon polymerization lithography to fabricate light field prints with high spatial and angular resolution.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Mengda He, Qinggang Zhang, Francesco Carulli, Andrea Erroi, Weiyu Wei, Long Kong, Changwei Yuan, Qun Wan, Mingming Liu, Xinrong Liao, Wenji Zhan, Lei Han, Xiaojun Guo, Sergio Brovelli, Liang Li
Summary: We have developed down-conversion ??-LED phosphors by growing CsPbBr3 perovskite nanocrystals directly inside sealed mesoporous silica nanospheres. The calcination process, in the presence of K2CO3, allows for the production of CsPbBr3 nanocrystals with high emission efficiency and isolation from the external environment. The resulting CsPbBr3-SiO2 nanospheres are highly stable, emissive, and dispersible, making them suitable for photolithographic inks for uniform ??-LED color conversion patterns with small pixels.
ACS ENERGY LETTERS
(2023)
Article
Optics
Longheng Qi, Peian Li, Xu Zhang, Ka Ming Wong, Kei May Lau
Summary: A prototype of full-color micro-LED micro-display with a pixel density of 391 ppi is demonstrated using InGaN/AlGaInP heterogeneous integration. This display shows the feasibility and prospects of high brightness, good color performance, and high-resolution micro-LED micro-displays in future metaverse applications.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhagen Miao, Can Gao, Haikuo Gao, Zhengsheng Qin, Wenping Hu, Huanli Dong
Summary: This study demonstrates the construction of high-efficiency uniform area-emissive OLETs that enable color-tunable and white emission through efficient energy transfer. The OLETs achieve a high external quantum efficiency and exhibit good loop stability and low driving voltage.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuai Wan, Zhe Li, Chenjie Dai, Yangyang Shi, Zhongyang Li
Summary: Light-emitting metasurfaces offer precise light modulation and can manipulate both pumping and fluorescence light simultaneously, expanding encoding freedom. This design strategy paves the way for multiplexing optical displays, information storage, and next-generation wearable displays.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jie Liang, Yuxiang Du, Kang Wang, Ang Ren, Xinyu Dong, Chunhuan Zhang, Ji Tang, Yongli Yan, Yong Sheng Zhao
Summary: Light sources with high color purity have the potential to revolutionize traditional displays, and a universal resonance-enhanced photon recycling strategy has been developed to achieve unprecedented high color rendering in current-driven displays based on perovskite LED arrays in distributed Bragg reflector cavities.
ADVANCED OPTICAL MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Yueting Zheng, Yongshen Yu, Wei Chen, Hailong Hu, Tailiang Guo, Fushan Li
Summary: Displays as carriers of visual information play an indispensable role in our daily life. With the expanding market demand for microdisplay products, high-resolution self-emissive displays have been rapidly developed. However, there is no comprehensive review of HR light-emitting devices. This review focuses on HR light-emitting technologies and serves as a valuable reference for the development of the microdisplay industry and studies on microdisplays.
SCIENCE CHINA-MATERIALS
(2023)
Review
Optics
Abdur Rehman Anwar, Muhammad T. Sajjad, Muhammad Ali Johar, Carlos A. Hernandez-Gutierrez, Muhammad Usman, S. P. Lepkowski
Summary: The demand for high-performance displays is increasing due to their wide applications. Micro-LED display shows potential to replace traditional displays, but faces challenges in mass transfer and manufacturing cost. Another option is using color conversion medium for full-color display.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Zhaoping Chen, Qin Wang, Ziyao He, Yao Tong, Xiaojuan Liang, Bingsuo Zou, Weidong Xiang
Summary: CsPbBr3 nanocrystals encapsulated in MCM-41 molecular sieve composite showed highly efficient green emission and outstanding stability, expanding their potential in display applications.
JOURNAL OF LUMINESCENCE
(2022)
