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Advances in Piezoelectric Deposition of Organic Electronic Materials

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Piezoelectric DOD (drop-on-demand) ink jet offers a promising combination of high productivity, high reliability and jetting uniformity characteristics (drop volume consistency, velocity characteristics and jet straightness) that are appropriate for jetting organic electronic materials. Because current commercial printheads do not meet the extremely high tolerances necessary for practical manufacturing processes, Spectra is designing a 128 jet printhead specifically for flat panel display (FPD) manufacturing. This paper describes the target specification and technology advancements required for the manufacture of flat panel displays. We will demonstrate the effect of fluid, waveform and head modification on the jetting properties of real polymer OLED (organic light emitting diode) fluids and show that this technology is a viable process for OLED display fabrication. This combination of tailored operating conditions with a purpose-built piezo printhead is proving to be key to meeting the goal of manufacturing high quality FPDs.
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Document Type: Research Article

Publication date: 2002-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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