Nanoparticle-Enhanced Ultrathin and Ultrahigh-Definition Color Converted Panchromatic Microarrays for Microlight-Emitting Diode Displays DOI Creative Commons

Chih‐Yuan Tsai,

Hao-Sung Chiu,

Yen‐Chia Cheng

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Microlight-emitting diodes (Micro-LEDs) are considered indispensable for next-generation display technologies. However, their further development faces numerous challenges, such as the difficulty in achieving high-yield mass transfer and use of environmentally harmful quantum dot color conversion techniques with suboptimal efficiency. To address these issues, we propose several key solutions. First, developed nontoxic stable organic–inorganic hybrid materials, utilizing integrated photolithography to replace time-consuming costly process. Additionally, refined aspect ratio efficiency microarray, optimized fabrication process produce microarrays free from nanoparticle residue without need protective layer curing. We successfully fabricated monochromatic 5080 PPI panchromatic 2540 PPI, 4 × μm ultrahigh-resolution microarrays. This is merely 3 thick, green red efficiencies 84.14% 71.20%, respectively. Furthermore, overall gamut coverage reached 99.11% DCI-P3 standard. Stability measurements at 60 °C 90% relative humidity 10 days showed that decreased by less than 2%. Our research results bring technological innovation field micro-LED applications.

Language: Английский

Optimization of dispersion angle in resonant cavity micro-light-emitting diode using multilayer DBR and microlens structures DOI Creative Commons
Tzu‐Yi Lee,

Chien-Chi Huang,

Fu‐He Hsiao

et al.

Discover Nano, Journal Year: 2025, Volume and Issue: 20(1)

Published: April 4, 2025

In this paper, the fabrication and corresponding performance characteristics of resonant cavity micro-light-emitting diodes (RC-μ-LEDs) are examined, with particular emphasis placed on reducing light emission angle to enhance their application efficiency. A stepped quantum well structure a multilayer aperture distributed Bragg reflector (DBR) used reduce angle, two different approaches investigated: one is by adding DBR structure, other incorporating microlens (ML) structure. The experimental results show that both adjusting cycles microlenses can effectively dispersion emission, thus improving directionality light, wavelength stability, overall device performance. Such highly directional sources offer great solutions for optical communications, micro-LEDs, augmented reality (AR) applications.

Language: Английский

Citations

0
Transfer-printed multi-stacked quantum dot color conversion layers for white light-emitting diodes DOI
Jinhee Lee, Yaewon Kim, Kyunghoon Lee

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 162196 - 162196

Published: Dec. 1, 2024

Language: Английский

Citations

3
Nanoparticle-Enhanced Ultrathin and Ultrahigh-Definition Color Converted Panchromatic Microarrays for Microlight-Emitting Diode Displays DOI Creative Commons

Chih‐Yuan Tsai,

Hao-Sung Chiu,

Yen‐Chia Cheng

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Microlight-emitting diodes (Micro-LEDs) are considered indispensable for next-generation display technologies. However, their further development faces numerous challenges, such as the difficulty in achieving high-yield mass transfer and use of environmentally harmful quantum dot color conversion techniques with suboptimal efficiency. To address these issues, we propose several key solutions. First, developed nontoxic stable organic–inorganic hybrid materials, utilizing integrated photolithography to replace time-consuming costly process. Additionally, refined aspect ratio efficiency microarray, optimized fabrication process produce microarrays free from nanoparticle residue without need protective layer curing. We successfully fabricated monochromatic 5080 PPI panchromatic 2540 PPI, 4 × μm ultrahigh-resolution microarrays. This is merely 3 thick, green red efficiencies 84.14% 71.20%, respectively. Furthermore, overall gamut coverage reached 99.11% DCI-P3 standard. Stability measurements at 60 °C 90% relative humidity 10 days showed that decreased by less than 2%. Our research results bring technological innovation field micro-LED applications.

Language: Английский

Citations

0