| 초록 |
There has been a great interest in the development of low-power, lightweight, human-interactive three-dimensional (3D) touchless displays, which allow simultaneous sensing and visualization of various stimuli. Here, we demonstrate a human-interactive 3D touchless sensing display fabricated from a solid-state block copolymer (BCP) photonic crystal (PC) with its multi-order reflective structural colors (SCs). Full visible range of SCs is developed through chemical cross-linking and interpenetrated hydrogel network within the alternating lamellae domains of the BCP PC. With the introduction of a nonvolatile ionic liquid into the domains, SC can be further controlled to result in novel SCs through the multi-ordered photonic reflections. By employing a hygroscopic ionic liquid as in ink, a printable human-interactive 3D touchless display is developed, sensing the 3D position of a human finger with respect to the distance from the display and visualizing through different SCs. |
