scholarly journals Patterned microlens array for efficiency improvement of small-pixelated organic light-emitting devices

2008 ◽  
Vol 16 (15) ◽  
pp. 11044 ◽  
Author(s):  
Hoang-Yan Lin ◽  
Yu-Hsuan Ho ◽  
Juin-Haw Lee ◽  
Kuan-Yu Chen ◽  
Jheng-Hao Fang ◽  
...  
Keyword(s):  
Microlens Array ◽  
Efficiency Improvement ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Dramatic efficiency improvement in single-layer orange phosphorescent organic light-emitting devices with suppressed efficiency roll-off

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55017-55021 ◽  
Author(s):  
Liangmei Zuo ◽  
Guangguang Han ◽  
Ren Sheng ◽  
Kaiwen Xue ◽  
Yu Duan ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Single Layer ◽  
Efficiency Improvement ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices ◽  
A Current

We have successfully demonstrated efficient single-layer organic light-emitting devices (OLEDs) with a current efficiency of 31.38 cd A−1.

Microlens Array Fabrication by 3D Diffuser Lithography for Light Enhancement of Organic Light-Emitting Devices

2014 ◽  
Vol 625 ◽  
pp. 430-436
Author(s):  
Hung Yi Lin ◽  
Yong Shan Sun ◽  
Shih Liang Chen ◽  
Mao Kuo Wei
Keyword(s):  
Fill Factor ◽  
Microlens Array ◽  
Microlens Arrays ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Circular Holes ◽  
Organic Light Emitting Devices ◽  
Pdms Molding ◽  
Array Fabrication

Microlens arrays have been fabricated by 3D diffuser lithography in this study. The method mainly adopts two kinds of diffuser films with different transmittances and hazes, integrated by photolithography, polydimethylsiloxane (PDMS) molding and UV forming techniques, to get microlens arrays with different parameters and geometries. The features, such as height, geometry and fill factor of microlens arrays, are controlled by photolithography, using a photomask with circular holes and different exposure doses. The microlens arrays can also be duplicated and transferred to the surface of flexible polyethylene terephthalate (PET) substrate through PDMS molding and UV forming processes. Finally, the outcoupling efficiency of microlens arrays attached to organic light-emitting devices (OLEDs) can be measured and analyzed. More than 60% enhancement of luminous current efficiency can be obtained in experimental results.

scholarly journals Partitioning pixel of organic light-emitting devices with center-hollowed microlens-array films for efficiency enhancement

2010 ◽  
Vol 18 (18) ◽  
pp. 18685 ◽  
Author(s):  
Kuan-Yu Chen ◽  
Yu-Ting Hsiao ◽  
Hoang Yan Lin ◽  
Mao-Kuo Wei ◽  
Jiun-Haw Lee
Keyword(s):  
Microlens Array ◽  
Efficiency Enhancement ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

The influence of a microlens array on planar organic light-emitting devices

2006 ◽  
Vol 16 (2) ◽  
pp. 368-374 ◽  
Author(s):  
Mao-Kuo Wei ◽  
I-Ling Su ◽  
Yi-Jia Chen ◽  
Ming Chang ◽  
Hong-Yi Lin ◽  
...  
Keyword(s):  
Microlens Array ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices
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