Optical trackpad
 | This article needs additional citations for verification. (June 2021) |
An optical trackpad is an
ultra-portable or ultra-mobile PCs, where it replaces touchpads, pointing sticks or trackballs as pointing device
.
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.[2]
In comparison with touchpads, it detects actual skin displacement, instead of displacement of the center of the area being touched, and more similar to pointing sticks or compact trackballs by using experience, but with less physical feedback.
See also
- Optical fingerprint sensor
References
Wikimedia Commons has media related to Optical trackpads.
- ^ "RIM's optical trackpads: they weren't joking about the 'optical' part". Engadget. Retrieved 2021-06-28.
- ^ Dan (2019-04-05). "GPD Pocket 2 - an in depth, hands on review". ThoughtSnack. Retrieved 2021-05-13.
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