| Autor: |
Tomoyuki Tachikawa, Kosuke Saeki, Hashimoto Keisuke, Shinsuke Nagino, Yosuke Taguchi, Masato Okada, Shigehiro Ueno |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Journal of the Society for Information Display. 19:87 |
| ISSN: |
1071-0922 |
| DOI: |
10.1889/jsid19.1.87 |
| Popis: |
— The fabrication technique for color OLED panels by means of wettability-controllable hole-injection material (HIM) and a photocatalytic lithography method achieves both precise ink-jet printing and long-lifetime devices. The technique enables us to selectively change the non-wetting surface of a hole-injection layer (HIL) of metal-oxide nanoparticles (MONPs) into a wetting surface without damage to the device performance. Wetting patterns formed by this method with photocatalyst-coated photomasks made it possible to print emission material with patterns of precisely 98-μm widths on the hole-injection layer. A fluorescent green-emitting device fabricated with an HIM of MONPs by the photocatalytic treatment exhibited a long lifetime of 365 hours at30,000 cd/m2, which can be extrapolated to a lifetime of more than 110,000 hours at 1000 cd/m2, assuming an acceleration coefficient of 1.7. A two-color device and a monochrome passive-matrix panel were also successfully fabricated. The two-color device emitted light without the mixing of colors. The monochrome panel displayed alphabetical characters with good uniformity and no flaws. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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