Fabrication of Nāmya: A Bend and Touch-Sensitive Flexible Smartphone-Sized Prototype

Table 1

Flexible handheld prototypes reported in the literature with details on the fabrication process using commercially available flex or bend sensors.

Prototype	Flexible materials	Bend sensors	Touch input	Visual feedback
Gummi [4]	Flexible plexiglass	Two unidirectional resistive bend sensors	Touch-sensitive 2D position sensor	Rigid display
PaperPhone [6]	Flexible E-Ink display and flexible circuit material	Five bi-directional resistive bend sensors	Not available	E-Ink display
Letter-sized device [33]	Thin flexible material and flexible printed circuit	Six bidirectional resistive bend sensors	Not available	Not available
Bendy [14]	30A silicone, polycarbonate, and flexible printed circuit	Six bidirectional resistive bend sensors	Not available	Projected display
Deformable prototype [18]	60A silicone and flexible printed circuit	Four bidirectional resistive bend sensors	Not available	Projected display
Typhlex [16]	60A silicone and flexible printed circuit	Three bidirectional resistive bend sensors	Not available	Not available