This work, Stylus Assistant, proposed two designs of actuator array system, DynaFrame and DynaBase, to realize dynamic physical constraints on portable displays for facilitating stylus input.

DynaFrame: Around-display constraint

DynaBase: Back-of-device constraint

User interface with inverse kinematics and path recording

Demo Long-Fei Lin, Shan-Yuan Teng, Rong-Hao Liang, Bing-Yu Chen. 2016. Stylus Assistant: Designing Dynamic Constraints for Facilitating Stylus Inputs on Portable Displays. In SIGGRAPH ASIA 2016 Emerging Technologies (SA ‘16). ACM, New York, NY, USA, Article 14, 2 pages. DOI
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Slides PDF (29.4MB)
Source Code GitHub