Hi-Accuracy is a project for the (further) development of high-resolution printing technologies. The goal is the complete printing of an electrolumnescent display with quantum dot materials (QD-LED). This includes both the luminescent components of the so-called front plane and the tiny electrical logic elements under each pixel in the so-called back plane.
From Hi-Response to Hi-Accuracy
The display industry dominates the global market for printed, flexible and organic electronics. Currently, the industry is looking for innovative ways to increase screen resolution and displayable color space in liquid processed displays. This requires the development of new printing methods and light-emitting material systems.
In the predecessor project Hi-Response (GA No. 646296), the front plane of a single-color active-matrix (AM) OLED screen was printed using electrostatic jetting (ESJET).
Hi-Accuracy aims to go several steps further. The research goal in the EU project is high-precision printing of conductive, semiconductive, resistive, dielectric and optical materials with a µm-scale accuracy for a range of organic and large area electronics (OLAE) applications. Specifically, a multicolor active-matrix quantum dot display (AM-QD-LED) will be fabricated, with both the front, and the complete backplane, fully liquid processed. To this end, eleven consortium members are contributing their expertise on five different printing technologies. The result will combine state-of-the-art materials and printing inks with scalable, cost-effective printing and coating processes. The advantages of printing processes are lower costs - through material savings and cheaper production equipment - and scalability.