Printed electroluminescent

Morii, K. et al. 2000. Characterization of light-emitting polymer devices prepared by ink-jet printing. Proc. 10th Int. Workshop on Inorganic and Organic Electroluminescence. pp. 357-360. 

Bharathan, J. Yang, Y. 1998. Polymer electroluminescent devices processed by inkjet printing I. Polymer fight-emitting logo. Appl. Phys. Lett. 72 2660-2662. 

Another major technology area that can utflize conductive IJ ink is the display market. Inkjet can be applied for both flexible and rigid displays such as electroluminescent and electrophoretic displays (including e-paper), hquid crystal displays (LCD), plasma display panels (PDP) and touch screens some functionalities have already been printed by IJ technology in certain display apphcations, for example RGB color filters. Conductive IJ is also appropriate for use in thin film transistors (TFT), disposable batteries, radio-frequency identification (RFID) tags, and a range of chemical and electronic sensors. 

White organic electroluminescent devices have been fabricated using an ink-jet printing method. ... 

Satoh R, Naka S, Shibata M, Okada H, Onna-gawa H, Miyabayashi T. White organic electroluminescent devices fabricated using inkjet printing method. Jpn J Appl Phys Part 1 2004 43(llA) 7395-8. 

The device consists of four layers substrate, transparent electrode, polymeric ink, and top electrode. The electroluminescent ink is screen-printed using multiple passes to result in a dry film thickness between about 100 nm and 1 jxm. 

FIGURE 10.9 Schematic structure of an inorganic electroluminescent device with a transparent electrode made from a printing paste formulation of PEDT PSS (screen printing technique). 

In addition, screen printable pastes are available, which can be used for printing back and front electrodes for electroluminescent films. Table 1.7 shows technical data for the first EMI shielding paint and EL electrode printing paste. 

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