Results 21 to 30 of about 2,823,725 (275)

Effect of Various LED Light Qualities, Including Wide Red Spectrum-LED, on the Growth and Quality of Mini Red Romaine Lettuce (cv. Breen)

Plants, 2023
Recently, LEDs with various light qualities have been used in closed plant factories, and they are known to have different effects on the growth and quality of crops.
Joo Hwan Lee, Yong Beom Kwon, Yoo Han Roh, In-Lee Choi, Jidong Kim, Yongduk Kim, Hyuk Sung Yoon, Ho-Min Kang   +7 more
doaj   +3 more sources

Making UV light visible by exciting polarization-gate phototransistor to achieve energy transfer into GaN-based blue emission [PDF]

Light: Science & Applications
In this work, we have made ultraviolet (UV) light visible by proposing and fabricating an integrated optoelectronic device. The demonstrated device consists of a GaN-based blue mini-light-emitting diode (mini-LED) and a phototransistor.
Chunshuang Chu, Yao Jiang, Conglin He, Wenjie Li, Kangkai Tian, Yonghui Zhang, Xiaowei Sun, Zi-Hui Zhang   +7 more
doaj   +2 more sources

Advancing LED technology: the FDCSP element’s breakthrough in mini and micro-LED packaging and backlight module enhancement

Discover Nano
In this research, we introduce an advanced methodology for the calculation of bulk light sources tailored for free-form surface design, focusing on the principle of energy conservation.
Jo-Hsiang Chen, Che-Hsuan Huang, Tzu-Yi Lee, Fang-Chung Chen, Tsung-Sheng Kao, Hao-Chung Kuo   +5 more
doaj   +3 more sources

Beyond 100 m Range Mini-LED-Based Visible Light Communication System

Photonics
In visible light communication (VLC) systems, lenses are typically used to collimate light at the transmitter. However, due to the wide light emission angle of mini-LEDs, capturing light at large angles using a lens at the transmitter can be challenging.
Zhijian Lv, Shuang Wu, Junye Zhong, Zikun Xu, Tiefeng He, Jinpeng Tian, Linfeng Zheng, Haichuan Zhang, Wenwei Zhang, Muxin Nian   +9 more
doaj   +2 more sources

Enhanced Light Extraction of Flip-Chip Mini-LEDs with Prism-Structured Sidewall

Nanomaterials, 2019
Current solutions for improving the light extraction efficiency of flip-chip light-emitting diodes (LEDs) mainly focus on relieving the total internal reflection at sapphire/air interface, but such methods hardly affect the epilayer mode photons.
Bin Tang, Jia Miao, Yingce Liu, Hui Wan, Ning Li, Shengjun Zhou, Chengqun Gui   +6 more
doaj   +3 more sources

Explore Luminance Attenuation and Optical Crosstalk of RGB Mini Light-Emitting Diode via Microscopic Hyperspectral Imaging

IEEE Journal of the Electron Devices Society, 2022
In this article, we experimentally and quantitatively investigate the luminance attenuation for red, green, and blue mini light-emitting diodes (LEDs), and the optical crosstalk in the RGB mini-LED array under different working currents via the ...
Lili Zheng, Ziquan Guo, Yijun Lu, Peixin Zeng, Shouqiang Lai, Guolong Chen, Yulin Gao, Lihong Zhu, Weijie Guo, Yi Lin, Zhong Chen   +10 more
doaj   +1 more source

3.8 Gb/s PAM-4 UOWC System Over a 2-m Underwater Channel Enabled by a Single-Pixel 175-μm GaN-Based Mini-LED

IEEE Photonics Journal, 2022
Blue/green light-emitting diodes (LEDs) have been studied extensively in medium/short-distance underwater optical wireless communication (UOWC), while available commercial bandwidth-limited LEDs cannot support the increased capacity.
Chao Zhang, Zixian Wei, Xueyang Li, Yibin Li, Lei Wang, Lai Wang, H. Y. Fu, Yanfu Yang   +7 more
doaj   +1 more source

Zero-Optical-Distance Mini-LED Backlight with Cone-Shaped Light Coupling Microstructures

Crystals, 2023
This paper presents a zero-optical-distance mini-LED backlight with cone-shaped light coupling microstructures to achieve an ultra-thin backlight architecture (~0.1 mm thickness) by combining the characteristics of direct-lit and edge-lit backlights ...
Zibin Lin, Haonan Jiang, Daochun Ye, Wenyan Zhang, Enguo Chen, Yun Ye, Sheng Xu, Qun Yan, Tailiang Guo   +8 more
doaj   +1 more source

Mini-BESTest_official czech version

, 2021
The item consists of Czech version of the Mini-BESTest test, including instructions for its ...
Anna Kuželková (11457057), Monika Tichá (11457054), Adéla Slámová (11457053), Karolína Jakovcová (11473711), Klaudia Michalčinová (11441371), Eva Kejhová (11457048), Jakub Jeníček (11457051)   +6 more
core   +2 more sources

Realizing Low Optical Crosstalk, Wide Color Gamut Mini-LED Displays via Laser-Patterned Quantum Dots Color Conversion Layer

, 2021
Laser patterning of quantum dots color conversion (QDCC) layer has proven technically feasible to be implemented in full-color mini/micro-LED displays.
Yuanjie Cheng, Xing Qiu, S. W. Ricky Lee, Cheng, Yuanjie, Qiu, Xing, Lo, Jeffery C.C., Lee, S. W.Ricky, Jeffery C. C. Lo   +7 more
core   +1 more source