Kalpana Kalpana (Editor)

Optical trackpad

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Covid-19

An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. The sensor is used typically in smartphones where it replaces the D-pad. The main advantages over a D-pad are:

  • It can track movements in 360 degrees and with varying speeds.
  • It uses space efficiently, without the need for small buttons that are difficult to press.
  • Next to browsing through menus, it can drive a mouse cursor in point&click interfaces.

    In comparison with trackpads, it detects actual skin displacement, instead of displacement of the center of the area being touched.

    References

    Optical trackpad Wikipedia


    Similar Topics
    Baaz
    La Région Centrale
    Cassia
    Topics
     
    B
    i
    Link
    H2
    L