Precise Inkjet Fabrication for Large Size OLED Displays

Sakai, Satoki; Takei, Shuichi; Kitabayashi, Atsushi; Hanaoka, Hidetaka; Shinohara, Kazuto; Goto, Masashi; Mitsuo, N.; Seki, Shunichi; Miyashita, Satoru

doi:10.2352/issn.2169-4451.2009.25.1.art00099_2

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2024

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“…To make OLED panels, there are two different methods, a vacuum deposition and an inkjet printing. 4,5 Inkjet printing process can adapt to different kinds of patterns by changing the printing software. [6][7][8] On the other hand, a vacuum deposition process requires different fine metal masks for different panel patterns, 9 so it takes time and cost to change the mask.…”

Section: Introductionmentioning

confidence: 99%

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Mura‐free G8.5 220ppi inkjet printing technology for OLED and QLED display panels

Yoshida,

Nakatani,

Inoue

et al. 2024

J Soc Info Display

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This paper reported on the development of a Mura‐free and high precise printing to realize high‐resolution organic light‐emitting diode and quantum dot light‐emitting diode display panels with a G8.5 glass substrate. To realize Mura‐free printing, we developed the single‐path print line head and the new pixel volume adjustment system with a pixel volume variation of ±0.8%. And to realize high precise printing, we developed the G8.5 table system that compensated for the drop position by changing the jetting time of each nozzle. And verified a drop position accuracy of ±2.1 μm. By combining these technologies, we achieved Mura‐free 220‐ppi printing on the G8.5 table.

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Section: Introductionmentioning

confidence: 99%

“…We call it multi model glass. To make OLED panels, there are two different methods, a vacuum deposition and an inkjet printing 4,5 . Inkjet printing process can adapt to different kinds of patterns by changing the printing software 6–8 .…”

Section: Introductionmentioning

confidence: 99%