P‐3.1: 2 Stack‐2&3 Color Top Emission White OLEDs for AR & VR

In this work, we developed top emission white OLED (T/E WOLED) device for an application to high resolution AR and VR. By preparing a good performance of semitransparent cathode and optimizing the critical organic layer to co‐regulate the microcavity structure, we fabricated the 2 stack 3‐color as w...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2018-04, Vol.49 (S1), p.569-571
Main Authors: Li, Xiaohu, Jiao, Zhiqiang, Zhu, Haibin, Liu, Tun, Kang, Liangliang, Yuan, Guangcai, Wang, Lu
Format: Article
Language:English
Subjects:
Color
Color tuning
Efficiency
Emission
OLED
Organic light emitting diodes
WOLED performance
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Summary:In this work, we developed top emission white OLED (T/E WOLED) device for an application to high resolution AR and VR. By preparing a good performance of semitransparent cathode and optimizing the critical organic layer to co‐regulate the microcavity structure, we fabricated the 2 stack 3‐color as well as 2 stack 2‐color WOLED devices, and the key impact factors to the performance of T/E WOLED were discussed. Results indicate that the 2 stacked 3‐color WOLED device shows a very wide color gamut, while the microcavity structure leads to a low light‐emitting efficiency. However, the 2 stack 2 color device (blue unit + yellow unit) exhibits a wonderful light‐emitting efficiency and CIE coordinates of (0.37, 0.36). Furthermore, the efficiency of this device can achieve as high as 80% of the bottom emitting device, revealing a superior prospect to the application of AR & VR.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.12784