Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes

Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes

We demonstrate an approach for improving the colour gamut of bottom-emission organic light-emitting diodes (OLEDs) through micro-cavity structure embedded cathodes. The devices with micro-cavity structure embedded cathodes showed an improved colour gamut of 91.5% (National Television System Committe...

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Bibliographic Details
Main Authors: Hyunkoo Lee, Jonghee Lee, Jeong-Ik Lee, Nam Sung Cho
Format: Article
Language:English
Published: MDPI AG 2018-08-01
Series:Electronics
Subjects:
OLED
colour gamut
micro-cavity
bottom-emission
Online Access:http://www.mdpi.com/2079-9292/7/9/155
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spelling doaj-f6554052e1c84af1a34d96c1d19b204a2020-11-24T23:23:49ZengMDPI AGElectronics2079-92922018-08-017915510.3390/electronics7090155electronics7090155Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded CathodesHyunkoo Lee0Jonghee Lee1Jeong-Ik Lee2Nam Sung Cho3Flexible Device Research Group, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaFlexible Device Research Group, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaReality Device Research Division, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaFlexible Device Research Group, Electronics and Telecommunications Research Institute, Daejeon 34129, KoreaWe demonstrate an approach for improving the colour gamut of bottom-emission organic light-emitting diodes (OLEDs) through micro-cavity structure embedded cathodes. The devices with micro-cavity structure embedded cathodes showed an improved colour gamut of 91.5% (National Television System Committee (NTSC)), 95.8% (Adobe RGB), and 129.2% (sRGB), compared to those of the devices without micro-cavity structure embedded cathodes—59.2% (NTSC), 62.0% (Adobe RGB), 83.6% (sRGB). In addition, the performance of red, green, and blue devices are also investigated depending on the optical length of the micro-cavity structure.http://www.mdpi.com/2079-9292/7/9/155OLEDcolour gamutmicro-cavitybottom-emission
collection DOAJ
language English
format Article
sources DOAJ
author Hyunkoo Lee
Jonghee Lee
Jeong-Ik Lee
Nam Sung Cho
spellingShingle Hyunkoo Lee
Jonghee Lee
Jeong-Ik Lee
Nam Sung Cho
Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
Electronics
OLED
colour gamut
micro-cavity
bottom-emission
author_facet Hyunkoo Lee
Jonghee Lee
Jeong-Ik Lee
Nam Sung Cho
author_sort Hyunkoo Lee
title Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
title_short Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
title_full Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
title_fullStr Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
title_full_unstemmed Improvement of Colour Gamut in Bottom-Emission Organic Light-Emitting Diodes Using Micro-Cavity Structure Embedded Cathodes
title_sort improvement of colour gamut in bottom-emission organic light-emitting diodes using micro-cavity structure embedded cathodes
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2018-08-01
description We demonstrate an approach for improving the colour gamut of bottom-emission organic light-emitting diodes (OLEDs) through micro-cavity structure embedded cathodes. The devices with micro-cavity structure embedded cathodes showed an improved colour gamut of 91.5% (National Television System Committee (NTSC)), 95.8% (Adobe RGB), and 129.2% (sRGB), compared to those of the devices without micro-cavity structure embedded cathodes—59.2% (NTSC), 62.0% (Adobe RGB), 83.6% (sRGB). In addition, the performance of red, green, and blue devices are also investigated depending on the optical length of the micro-cavity structure.
topic OLED
colour gamut
micro-cavity
bottom-emission
url http://www.mdpi.com/2079-9292/7/9/155
work_keys_str_mv AT hyunkoolee improvementofcolourgamutinbottomemissionorganiclightemittingdiodesusingmicrocavitystructureembeddedcathodes
AT jongheelee improvementofcolourgamutinbottomemissionorganiclightemittingdiodesusingmicrocavitystructureembeddedcathodes
AT jeongiklee improvementofcolourgamutinbottomemissionorganiclightemittingdiodesusingmicrocavitystructureembeddedcathodes
AT namsungcho improvementofcolourgamutinbottomemissionorganiclightemittingdiodesusingmicrocavitystructureembeddedcathodes
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