High Dynamic Range Smart Window Display by Surface Hydrophilization and Inkjet Printing

Abstract

Mechanoresponsive smart windows have been intensively investigated in recent years as they offer various applications for signage and light management. However, integrating a display functionality into such smart windows remains a challenge since the realization of pixels in these devices is difficult. In addition, mechanoresponsive smart windows with a high dynamic range are rarely demonstrated because they would suffer from complex fabrication processes and high costs. In this work, a novel surface modification process and digital encoding were developed for direct inkjet printing of micro‐etching‐masks on hydrophobic elastomers, and a pixelated haze distribution was realized. Compared to the traditional mechanoresponsive smart windows, which modify the optical performance by applied strain solely, here, a smart window with haze tunability in either static or strain‐applied state is demonstrated. The work enhances the potential of the fabricated smart window to be applied in high dynamic range signage displays.

Enhanced photoluminescence of a microporous quantum dot color conversion layer by inkjet printing

“…S9 in the ESM. The diameter of the nanoparticles was selected for optimal scattering efficiency for blue light [17,41]. Compared to the equivalent sample without TiO 2 particles, a maximum radiant flux enhancement of 76.6% is obtained by the QD/PS films containing 10 wt.% TiO 2 .…”

Fabrication of Microlens Arrays with High Quality and High Fill Factor by Inkjet Printing

“…The flexible PDMS substrate was prepared by first mixing a pre‐polymer base of PDMS Sylgard 184 silicone elastomer (Dow Corning) with its cross‐linking curing agent in a 10:1 mass ratio. [ 33 ] The thoroughly stirred mixture was degassed in a vacuum desiccator for 30 min. Subsequently, the degassed mixture was poured onto a clean glass plate and cured on a hotplate at 100 °C for 30 min.…”