Towards human-resolution haptics: A high bandwidth, high density, wearable tactile display

Despite advances in digitizing vision and hearing, touch still lacks an equivalent digital interface matching the fidelity of human perception. This gap limits the quality of digital tactile information and the realism of virtual experiences. Here, we introduce a step towards human-resolution haptics: a class of wearable tactile displays designed to match the spatial and temporal acuity of the human fingertip. Our device, VoxeLite, is a 0.1 mm-thick, 0.19 g, skin-conformal array of individually addressable soft electroadhesive actuators (“nodes”). As users touch and move across surfaces, VoxeLite deliver high-resolution distributed forces via the nodes. Enabled by scalable microfabrication techniques, the display achieves actuator densities up to 110 nodes/cm², produces stimuli up to 800 Hz and remains transparent to real-world tactile input. We demonstrate its ability to render small-scale hapticons, virtual textures, and transmit physical surfaces, validated through human psychophysic..., , # Towards human-resolution haptics: A high bandwidth, high density, wearable tactile display

Dataset DOI: [10.5061/dryad.63xsj3vd9](10.5061/dryad.63xsj3vd9)

## Description of the data and file structure

All data files are in matlab (.mat) format.

## File: characterization.zip

**Description:** This folder contains all the data used in characterizing different versions of VoxeLite. Each data set contains the recorded bulk finger velocity (obtained from a Laser Doppler Vibrometer) and the lateral force response (obtained from a force sensor) of VoxeLite.

#### File naming

Each file contains data for one version of VoxeLite. The parameters of VoxeLite that were changed are: 

* concentration of carbon nanotube additives: indicated by \"cLatex_*x*\", where *x* is either \"0.5\", \"1.0\", \"1.5\", or \"2.0\". If no indication is made, \"1.0\" was used. 
* 0.5 = 0.83 wt% CN
* 1.0 = 1.65 wt% CN
* 1.5 = 2.48 wt% CN
* 2.0 = 4.1 wt% CN
* shore hardness of the node: indicated by \"20A\", \"40A\", or ..., All study procedures were approved by the Northwestern University Institutional Review Board. Participants provided explicit informed consent for the public release of de-identified data. To ensure anonymity, all direct identifiers (e.g., names, contact information, and other personally identifying details) were removed from the dataset. Each participant was assigned a random numeric code unrelated to their identity, and no indirect identifiers that could reasonably be used to re-identify individuals were retained.