Sprayable display brings 3D printing to life: Page 3 of 3

June 25, 2020 //By Nick Flaherty
ProtoSpray combines 3D printing and spraying to create interactive touchscreen displays
ProtoSpray combines 3D printing and spraying to create interactive touchscreen displays
significantly less sensitive to user experience level and opens potential for a combined fabrication process. However, this would need the design tools to include knowledge of the sprayable display process.

The team used an Ultimaker S5 3D printer on default settings with a 0.4mm nozzle/print core, printing at a 0.15mm layer height with conductive filament printed with a 100 per cent infill to maximise conductivity. For spray coating they used an Iwata Eclipse hp-cs airbrush with a 0.35mm nozzle and an AS186 air compressor at a distance of around 30cm. The displays are illuminated with two 9V batteries with a standard EL driver. 

As well as powering the EL sprayable display, the electrodes can also serve as capacitance sensors to enable touch sensing. Lacquer layers can be added to the top to create a protective insulating layer and separate the AC current powering the display from the user's touch. Experiments showed comparable capacitive sensing capabilities to channels with no coating.

The paper is at  https://doi.org/10.1145/3313831.3376543

www.bristol.ac.uk

Related sprayable display articles 


Vous êtes certain ?

Si vous désactivez les cookies, vous ne pouvez plus naviguer sur le site.

Vous allez être rediriger vers Google.