JOLED_UIST2016_sheridanprinting.pdf (18.37 MB)
JOLED: a mid-air display based on electrostatic rotation of levitated Janus objects
conference contribution
posted on 2023-06-09, 03:29 authored by Deepak Ranjan Sahoo, Takuto Nakamuta, Asier Marzo, Themis Omirou, Michihiro Asakawa, Sriram SubramanianWe present JOLED, a mid-air display for interactive physical visualization using Janus objects as physical voxels. The Janus objects have special surfaces that have two or more asymmetric physical properties at different areas. In JOLED, they are levitated in mid-air and controllably rotated to reveal their different physical properties. We made voxels by coating the hemispheres of expanded polystyrene beads with different materials, and applied a thin patch of titanium dioxide to induce electrostatic charge on them. Transparent indium tin oxide electrodes are used around the levitation volume to create a tailored electric field to control the orientation of the voxels. We propose a novel method to control the angular position of individual voxels in a grid using electrostatic rotation and their 3D position using acoustic levitation. We present a display in which voxels can be flipped independently, and two mid-air physical games with a voxel as the playable character that moves in 3D across other physical structures and rotates to reflect its status in the games. We demonstrate a voxel update speed of 37.8 ms/flip, which is video-rate.
Funding
Interact-Interactive Systems Involving Multi-Point Surfaces, Haptics and true-3D displays; G1686; EUROPEAN UNION; 278576
Ghost-eneric, highly-organic shape-changing interfaces; EUROPEAN UNION; 309191
History
Publication status
- Published
File Version
- Accepted version
Journal
Proceedings of the 29th Annual Symposium on User Interface Software and TechnologyPublisher
Association for Computing MachineryExternal DOI
Page range
437-488Event name
UIST 2016: 29th ACM User Interface Software and Technology SymposiumEvent location
Tokyo, JapanEvent type
conferenceEvent date
October 16-19, 2016ISBN
9781450341899Department affiliated with
- Informatics Publications
Full text available
- Yes
Peer reviewed?
- Yes