Application of Mini-LEDs with Microlens Arrays and Quantum Dot Film as Extra-Thin, Large-Area, and High-Luminance Backlight

Article Optics

Ultrathin miniLED backlight system using optical film with microstructures

Qibin Feng et al.

Summary: The paper proposes a design method for backlight units (BLUs) using MiniLEDs as light sources, optimizing display performance through total inner reflection and achieving strong practicality.

APPLIED OPTICS (2021)

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Article Optics

Towards efficient near-infrared fluorescent organic light-emitting diodes

Alessandro Minotto et al.

Summary: The study successfully overcame the limitations of the energy gap law and aggregation quenching in near-infrared organic emitters by introducing new porphyrin oligomers and designing side chains. This led to promising external quantum efficiency in organic light-emitting diodes at 850nm. The results provide a general strategy for designing high-luminance NIR emitters.

LIGHT-SCIENCE & APPLICATIONS (2021)

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Article Optics

High-efficiency, long-lifetime deep-blue organic light-emitting diodes

Soon Ok Jeon et al.

Summary: By combining a new design of blue TADF materials with a triplet-exciton recycling protocol, high efficiency and long lifetime were achieved in deep-blue organic light-emitting diodes.

NATURE PHOTONICS (2021)

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Article Optics

Enhanced light extraction from AlGaInP-based red light-emitting diodes with photonic crystals

Xiansheng Tang et al.

OPTICS EXPRESS (2021)

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Article Optics

Foveated glasses-free 3D display with ultrawide field of view via a large-scale 2D-metagrating complex

Jianyu Hua et al.

Summary: The proposed glasses-free 3D display technology introduces spatially variant information density to maintain stereoscopic experiences with smooth motion parallax at the central view and enlarge the viewing angle at the periphery view. This technology allows for integration with off-the-shelf purchased flat panels for applications in portable electronics.

LIGHT-SCIENCE & APPLICATIONS (2021)

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Review Optics

Augmented reality and virtual reality displays: emerging technologies and future perspectives

Jianghao Xiong et al.

Summary: With advancements in technology, AR and VR have become the next-generation display platforms, but unprecedented challenges in optical engineering require the use of holographic optical elements and lithography-enabled devices. These devices improve the performance of AR and VR, opening up new possibilities for future displays.

LIGHT-SCIENCE & APPLICATIONS (2021)

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Article Engineering, Electrical & Electronic

Reducing Power Consumption of Active-Matrix Mini-LED Backlit LCDs by Driving Circuit

Ming-Yang Deng et al.

Summary: By introducing a unique structure with a p-type AlGaN injection channel in the AlGaN DUV LED, the light output power and internal quantum efficiency can be improved, with a reduced efficiency droop at 100 A/cm².

IEEE TRANSACTIONS ON ELECTRON DEVICES (2021)

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Article Optics

Electrically driven mid-submicrometre pixelation of InGaN micro-light-emitting diode displays for augmented-reality glasses

Jinjoo Park et al.

Summary: Tailored ion implantation (TIIP) has been used to fabricate highly efficient, electrically-driven pixelated InGaN micro-LEDs (mu LEDs) at the mid-submicrometre scale, achieving 8,500 pixels per inch (ppi) (RGB). This technology allows for relatively invariant luminance and high pixel distinctiveness, paving the way for high-performance mu LED displays.

NATURE PHOTONICS (2021)

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Article Optics

Edge/direct-lit hybrid mini-LED backlight with U-grooved light guiding plates for local dimming

Enguo Chen et al.

Summary: A novel hybrid mini-LED backlight design is proposed in this study, which combines specially designed integrated light guiding plate (LGP) and local dimming technology. The design offers high optical performance and satisfactory local dimming effects, making it suitable for wide applications in large-area displays.

OPTICS EXPRESS (2021)

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Article Optics

Thin mini-LED backlight using reflective mirror dots with high luminance uniformity for mobile LCDs

Sho Kikuchi et al.

Summary: The proposed mini-LED backlight with reflective dots provides high luminance uniformity and light use efficiency through optimized reflective dots, backlight thickness, and light distribution of the mini-LEDs. By cutting a slit between each segment, light leakage is reduced, improving light use efficiency per segment and suppressing halo artifacts.

OPTICS EXPRESS (2021)

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Article Nanoscience & Nanotechnology

Asymmetric Quantum-Dot Pixelation for Color-Converted White Balance

Enguo Chen et al.

Summary: This paper presents an effective method for achieving white balance in QDCCF displays by defining an asymmetric aperture ratio among the three primary-color subpixels. The experimental results show that the proposed approach can achieve high color gamut and is close to the standard light source.

ACS PHOTONICS (2021)

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Article Chemistry, Multidisciplinary

Mini-LEDs with Diffuse Reflection Cavity Arrays and Quantum Dot Film for Thin, Large-Area, High-Luminance Flat Light Source

Zhi Ting Ye et al.

Summary: Mini-light-emitting diodes were combined with multiple three-dimensional diffuse reflection cavity arrays to produce thin, large-area, high-brightness, flat light source modules. Optimizing the curvature of the 3D free-form DRCA controls the light path and reduces the number of light sources used.

NANOMATERIALS (2021)

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Article Computer Science, Information Systems

Uniform Illumination Realized by Large Viewing Angle of Gallium Nitride-Based Mini-LED Chip With Translucent Sublayer Pairs

Liang Xu et al.

Summary: The study introduces a GaN-based mini-LED chip with batwing angular light distribution, utilizing a translucent layer for adjusting light intensity distribution. Compared to traditional mini-LEDs, this chip requires fewer LEDs, shorter light-diffusing distance, and increases the radiation half-power angle, showing potential for ultrathin backlight panels and wide color gamut RGB backlight displays.

IEEE ACCESS (2021)

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Article Nanoscience & Nanotechnology

Highly Reflective Thin-Film Optimization for Full-Angle Micro-LEDs

Zhi-Ting Ye et al.

Summary: This study proposes the use of dielectric and metal films to form highly reflective thin-film coatings on the light-emitting surfaces of micro-LEDs to optimize light distribution, achieving full-angle utilization. The prototype showed improved FWHM to 165 degrees and reduced center intensity to 63% of the original value with low voltage variation rates and optical losses. The highly reflective thin-film coating enables the realization of full-angle micro-LEDs suitable for commercial advertising displays or wide viewing angle plane light source modules.

NANOSCALE RESEARCH LETTERS (2021)

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Article Engineering, Environmental

A Mn4+-doped oxyfluoride phosphor with remarkable negative thermal quenching and high color stability for warm WLEDs

Shengan He et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Multidisciplinary

Volumetric light-shaping polymer-dispersed liquid crystal films for mini-LED backlights

Ziqian He et al.

LIQUID CRYSTALS (2020)

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Article Computer Science, Artificial Intelligence

Optimal local dimming based on an improved greedy algorithm

Tao Zhang et al.

APPLIED INTELLIGENCE (2020)

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Review Optics

Mini-LED, Micro-LED and OLED displays: present status and future perspectives

Yuge Huang et al.

LIGHT-SCIENCE & APPLICATIONS (2020)

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Article Optics

Overcoming the energy gap law in near-infrared OLEDs by exciton-vibration decoupling

Yu-Chen Wei et al.

NATURE PHOTONICS (2020)

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Article Multidisciplinary Sciences

Low-noise GaAs quantum dots for quantum photonics

Liang Zhai et al.

NATURE COMMUNICATIONS (2020)

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Article Optics

Halo effect in high-dynamic-range mini-LED backlit LCDs

En-Lin Hsiang et al.

OPTICS EXPRESS (2020)

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Article Computer Science, Information Systems

Research on a Novel GaN-Based Converted Mini-LED Backlight Module via a Spectrum-Decouple System

Che-Hsuan Huang et al.

IEEE ACCESS (2020)

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Article Engineering, Electrical & Electronic

Color Difference and Thermal Stability of Flexible Transparent InGaN/GaN Multiple Quantum Wells Mini-LED Arrays

Bo Lu et al.

IEEE ELECTRON DEVICE LETTERS (2020)

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Article Computer Science, Information Systems

Subjective and Objective Evaluation of Local Dimming Algorithms for HDR Images

Lvyin Duan et al.

IEEE ACCESS (2020)

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Article Computer Science, Information Systems

Design and Analysis of a Total-Internal-Reflection (TIR) Structure Based on Ray-Mapping Method for Tailored Illumination

Xiang Sun et al.

IEEE ACCESS (2020)

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Article Optics

Visible quantum dot light-emitting diodes with simultaneous high brightness and efficiency

Huaibin Shen et al.

NATURE PHOTONICS (2019)

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Article Optics

New strategy for designing orangish-redemitting phosphor via oxygen-vacancy-induced electronic localization

Yi Wei et al.

LIGHT-SCIENCE & APPLICATIONS (2019)

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Article Crystallography

A Light Guide Plate That Uses Asymmetric Intensity Distribution of Mini-LEDs for the Planar Illuminator

Zhi-Ting Ye et al.

CRYSTALS (2019)

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Article Optics

Full-color monolithic hybrid quantum dot nanoring micro light-emitting diodes with improved efficiency using atomic layer deposition and nonradiative resonant energy transfer

Sung-Wen Huang Chen et al.

PHOTONICS RESEARCH (2019)

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Article Engineering, Electrical & Electronic

The Impact of Luminous Properties of Red, Green, and Blue Mini-LEDs on the Color Gamut

Weijie Guo et al.

IEEE TRANSACTIONS ON ELECTRON DEVICES (2019)

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Article Nanoscience & Nanotechnology

High-Uniformity Planar Mini-Chip-Scale Packaged LEDs with Quantum Dot Converter for White Light Source

Lung-Chien Chen et al.

NANOSCALE RESEARCH LETTERS (2019)

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Article Optics

Emerging ultra-narrow-band cyan-emitting phosphor for white LEDs with enhanced color rendition

Ming Zhao et al.

LIGHT-SCIENCE & APPLICATIONS (2019)

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Article Crystallography

Ultra-High Light Extraction Efficiency and Ultra-Thin Mini-LED Solution by Freeform Surface Chip Scale Package Array

Che-Hsuan Huang et al.

CRYSTALS (2019)

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Article Energy & Fuels

Hollow Light Guide Module Involving Mini Light-Emitting Diodes for Asymmetric Luminous Planar Illuminators

Zhi Ting Ye et al.

ENERGIES (2019)

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Article Multidisciplinary Sciences

Highly efficient and stable InP/ZnSe/ZnS quantum dot light-emitting diodes

Yu-Ho Won et al.

NATURE (2019)

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Article Optics

LED diffused transmission freeform surface design for uniform illumination

Zhen-Min Zhu et al.

JOURNAL OF OPTICS-INDIA (2019)

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Review Optics

Liquid crystal display and organic light-emitting diode display: present status and future perspectives

Hai-Wei Chen et al.

LIGHT-SCIENCE & APPLICATIONS (2018)

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Article Optics

Bright colloidal quantum dot light-emitting diodes enabled by efficient chlorination

Xiyan Li et al.

NATURE PHOTONICS (2018)

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Article Optics

Flexible/curved backlight module with quantum-dots microstructure array for liquid crystal displays

Enguo Chen et al.

OPTICS EXPRESS (2018)

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Article Optics

High dynamic range liquid crystal displays with a mini-LED backlight

Guanjun Tan et al.

OPTICS EXPRESS (2018)

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Article Optics

Fundamentals of 3D imaging and displays: a tutorial on integral imaging, light-field, and plenoptic systems

Manuel Martinez-Corral et al.

ADVANCES IN OPTICS AND PHOTONICS (2018)

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Article Optics

Edge-lit LCD backlight unit for 2D local dimming

Gun-Wook Yoon et al.

OPTICS EXPRESS (2018)

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Article Computer Science, Information Systems

Research on a Camera-Based Microscopic Imaging System to Inspect the Surface Luminance of the Micro-LED Array

Lili Zheng et al.

IEEE ACCESS (2018)

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Article Chemistry, Physical

A Layer-by-Layer Growth Strategy for Large-Size InP/ZnSe/ZnS Core-Shell Quantum Dots Enabling High-Efficiency Light-Emitting Diodes

Fan Cao et al.

CHEMISTRY OF MATERIALS (2018)

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Article Optics

Optimal Design of a Quantum Dot Color Conversion Film in LCD Backlighting

Gunwoo Kim et al.

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS (2017)

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Article Optics

Full color waveguide liquid crystal display

Xiaochen Zhou et al.

OPTICS LETTERS (2017)

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Review Engineering, Electrical & Electronic

Transfer print techniques for heterogeneous integration of photonic components

Brian Corbett et al.

PROGRESS IN QUANTUM ELECTRONICS (2017)

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Article Optics

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

Huang-Yu Lin et al.

PHOTONICS RESEARCH (2017)

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Article Nanoscience & Nanotechnology

The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays

Qianqian Jiao et al.

NANOSCALE RESEARCH LETTERS (2016)

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Article Nanoscience & Nanotechnology

The effects of nanocavity and photonic crystal in InGaN/GaN nanorod LED arrays

Qianqian Jiao et al.

NANOSCALE RESEARCH LETTERS (2016)

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Application of Mini-LEDs with Microlens Arrays and Quantum Dot Film as Extra-Thin, Large-Area, and High-Luminance Backlight

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