Haptic knob

http://www.hapticknob.at -> Link zum Demonstrator

HMI Mini (prototype construction)

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click to enlarge


The use of such haptic knobs is also possible on touch-sensitive displays such as touch display screens in mobile telephones, PDAs, smart phones and smart watches, portable and stationary computers, and display screens, games consoles, tablet PCs, laptops, etc.
For this purpose, at least one haptic element in the form of a rotating knob is provided therein, for example. Such a haptic element can also be embodied as foldable/pivotable or displaceable and can be displaced from an idle position on the edge into a position over the display screen, for example.
As soon as the haptic element is over the display screen, the display on the display screen can change, i.e., a menu appears under or around the knob. ne advantage is that the user does not always have to grasp the display screen, which reduces the soiling. In addition, the adjustment and the zooming, for example, go more rapidly: grasping in the display screen with one finger and moving the rotating regulator with other fingers can trigger a zoom procedure, for example.
This is also true for the volume, writing with uppercase and lowercase letters, or the selection of special buttons or a second level during typing. The user can thus also press with one finger on a separate menu bar, in order to search for the type of the desired actuation. He then perfonns the desired action using the rotating regulator.
The pattern of the rotating regulator then adapts automatically, thus, for example, "on"-"off' or a volume regulation with a pattern possibly having a dynamic stop. If the display screen is rotated during the actuation (touch display screen) (for example, as in the case of mobile telephones or handheld computers~90° from portrait format to landscape format), the pattern adapts automatically, i.e., it also rotates.
For example, if the setting range were from six o'clock to 12 o'clock when it is held by the edge, this would change from 12 o'clock to six o'clock upon rotation by 90° clockwise without adaptation. This is also true if the display screen is installed in the knob itself. Such a haptic element can be haptic in all or individual directions (only rotate, rotate and press; joystick, etc.). The haptics adjust themselves depending on the selected action.
One advantage can also result upon the selection of a list such as a telephone book list, for example, since such entries are often too small for "targeting" for large fingers. Advantages also result in the dark or for people with spectacles who are not currently wearing them. Feedback is received via the haptic rotating regulator and the user knows what he is doing when it is currently dark, for example.

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