Fabrication of Light Extraction Efficiency of Organic Light-Emitting Diodes with 3D Aspherical Microlens by Using Dry Etching Process
Joint Authors
Wu, H. C.
Chen, Y. C.
Pan, C. T.
Hsieh, C. C.
Su, C. Y.
Li, W. C.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-03
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
organic light-emitting diode (OLED) can enable a greater artificial contrast ratio and viewing angle compared to liquid crystal display (LCD) because OLED pixels directly emit light.
There is a shortcoming that the internal quantum efficiency can reach values close to 100%, but about 80% light disperses because of the difference among the refractive indices of the substrate, anode, indium tin oxide (ITO) film, and air.
In this paper, three dimensions aspherical microlens arrays (3D A-MLAs) with substrate modifications are developed to simulate the optical luminous field by using FRED software.
This study modified parameters of 3D A-MLAs such as the diameter, fill-factor, aspect ratio, dry etching parameters, and electroforming rates of microlens to improve the extraction efficiency of the OLED.
In dry etching, not only the aspect ratio with better extraction rate can be obtained by reactive ion etching (RIE) dry etching, but also an undercutting phenomenon can be avoided.
The dimensions of 3D A-MLAs can be accurately controlled in the electroforming process used to make a nickel-cobalt (Ni-Co) metal mold to achieve the designed dimensions.
According to the measured results, the average luminance efficacy of the OLEDs with 3D A-MLAs can be enhanced.
American Psychological Association (APA)
Chen, Y. C.& Pan, C. T.& Hsieh, C. C.& Su, C. Y.& Wu, H. C.& Li, W. C.. 2013. Fabrication of Light Extraction Efficiency of Organic Light-Emitting Diodes with 3D Aspherical Microlens by Using Dry Etching Process. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1031575
Modern Language Association (MLA)
Chen, Y. C.…[et al.]. Fabrication of Light Extraction Efficiency of Organic Light-Emitting Diodes with 3D Aspherical Microlens by Using Dry Etching Process. Journal of Nanomaterials No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1031575
American Medical Association (AMA)
Chen, Y. C.& Pan, C. T.& Hsieh, C. C.& Su, C. Y.& Wu, H. C.& Li, W. C.. Fabrication of Light Extraction Efficiency of Organic Light-Emitting Diodes with 3D Aspherical Microlens by Using Dry Etching Process. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1031575
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031575