26.4: Invited Paper: Light Extraction Improvement by High Refractive Index Nanocrystal Materials for OLED Displays and Lightings

2018 ◽  
Vol 49 ◽  
pp. 283-286
Author(s):  
Vincent Jao
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Light Extraction

scholarly journals Enhanced Light Extraction from Bottom Emission OLEDs by High Refractive Index Nanoparticle Scattering Layer

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1241 ◽  
Author(s):  
Park ◽  
Choi
Keyword(s):  
Refractive Index ◽  
Glass Substrate ◽  
Manufacturing Process ◽  
Color Change ◽  
Light Emitting Diode ◽  
High Refractive Index ◽  
Light Extraction ◽  
Scattering Layer ◽  
Oled Device ◽  
Nanoparticle Material

High refractive index nanoparticle material was applied as a scattering layer on the inner side of a glass substrate of a bottom emission organic light emitting diode (OLED) device to enhance light extraction and to improve angular color shift. TiO2 and YSZ (Yttria Stabilized Zirconia; Y2O3-ZrO2) were examined as the high refractive index nanoparticles. The nanoparticle material was formed as a scattering layer on a glass substrate by a coating method, which is generally used in the commercial display manufacturing process. Additionally, a planarization layer was coated on the scattering layer with the same method. The implemented nanoparticle material and planarization material endured, without deformation, the subsequent thermal annealing process, which was carried out at temperature ranged to 580 °C. We demonstrated a practical and highly efficient OLED device using the conventional display manufacturing process by implementing the YSZ nanoparticle. We obtained a 38% enhanced luminance of the OLED device and a decreased angular color change compared to a conventional OLED device.

scholarly journals Conical photonic crystals for enhancing light extraction efficiency from high refractive index materials

2015 ◽  
Vol 23 (17) ◽  
pp. 22730 ◽  
Author(s):  
Jeong-Gil Kim ◽  
Chih-Hung Hsieh ◽  
Hyungryul J. Choi ◽  
Jules Gardener ◽  
Bipin Singh ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystals ◽  
Extraction Efficiency ◽  
High Refractive Index ◽  
Light Extraction ◽  
Light Extraction Efficiency

Annular holes and their arrays for light extraction from high refractive index substrates.

2009 ◽  
Author(s):  
J.-S. Bouillard ◽  
W. Dickson ◽  
J. Einsle ◽  
S. Gutierrez Rodrigo ◽  
S. Carretero ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Light Extraction

High refractive index coating of phosphor-in-glass for enhanced light extraction efficiency of white LEDs

2017 ◽  
Vol 53 (2) ◽  
pp. 1335-1345 ◽  
Author(s):  
Xujia Xu ◽  
Hong Li ◽  
Yong Zhuo ◽  
Ruixin Li ◽  
Peijing Tian ◽  
...  
Keyword(s):  
Refractive Index ◽  
Extraction Efficiency ◽  
High Refractive Index ◽  
Light Extraction ◽  
Light Extraction Efficiency ◽  
White Leds

Facile solvothermal synthesis of high refractive index ZrO2 spheres: estimation of the enhanced light extraction efficiency

RSC Advances ◽  
2015 ◽  
Vol 5 (100) ◽  
pp. 81915-81919 ◽  
Author(s):  
Jin Young Park ◽  
G. Seeta Rama Raju ◽  
Byung Kee Moon ◽  
Jung Hyun Jeong
Keyword(s):  
Refractive Index ◽  
Solvothermal Synthesis ◽  
Extraction Efficiency ◽  
High Refractive Index ◽  
Light Extraction ◽  
Light Extraction Efficiency ◽  
Simulation Results

LightTools simulation results revealed that the light extraction efficiency of an LED has been improved to 70.12% when ZrO2 spheres were coated on the GaN surface.

P-157: Improved Light Extraction from Organic Light-Emitting Diodes using High Refractive Index Nanostructure

2016 ◽  
Vol 47 (1) ◽  
pp. 1717-1719
Author(s):  
Ju Hyun Hwang ◽  
Yong Sub Shim ◽  
Cheol Hwee Park ◽  
Sun-Gyu Jung ◽  
Bong Han Bae ◽  
...  
Keyword(s):  
Refractive Index ◽  
Light Emitting Diodes ◽  
High Refractive Index ◽  
Organic Light Emitting Diodes ◽  
Light Extraction ◽  
Light Emitting ◽  
Organic Light
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