Film for pen input device, and pen input device

摘要

A film of a pen input device is provided, and a point determined by a combination of a static friction coefficient value x and a kinetic friction coefficient value y falls within a region including a line segment and the neighborhood of the line segment in a coordinate system showing the static friction coefficient on the X-axis and the kinetic friction coefficient on the Y-axis, the line segment being expressed as
y=0.3071x+0.04960.26≧x≧0.13,
the following conditions being satisfied:
0.16≧the static friction coefficient value x≧0.100.100≧the kinetic friction coefficient value y≧0.080,
the size a, the height b, and the pitch c of concavities and convexities in the surface satisfying the following conditions:
20 μm≧a≧16 μm0.9 μm≧b≧0.4 μm30 μm≧c≧26 μm.

主权项

1. A film placed on an input surface of a pen input device,
wherein a point determined by a combination of a static friction coefficient value x and a kinetic friction coefficient value y obtained when an input pen is moved on a surface of the film with an applied load of 250 g at a speed of 5 cm/sec falls within a region including a line segment and a neighborhood of the line segment in a coordinate system showing a static friction coefficient on the X-axis and a kinetic friction coefficient on the Y-axis, the line segment being expressed as
y=0.3071x+0.04960.26≧x≧0.13, the static friction coefficient value x and the kinetic friction coefficient value y falling within ranges expressed as
0.16≧the static friction coefficient value x≧0.100.100≧the kinetic friction coefficient value y≧0.080, size a, height b, and pitch c of concavities and convexities in the surface falling within ranges expressed as
20 μm≧a≧16 μm0.9 μm≧b≧0.4 μm30 μm≧c≧26 μm.