Patent ID: 8219348

Claim:
A method for calibrating and/or correcting a display device having a needle, the needle being able to rotate about an axis of rotation and the needle being driven by means of a stepping motor, the calibration method comprising the following steps: a first measurement of a first difference between a first value displayed by the needle and a first value to be displayed by the needle, a second measurement of a second difference between a second value displayed by the needle and a second value to be displayed by the needle, a third measurement of a third difference between a third value displayed by the needle and a third value to be displayed by the needle, a fourth measurement of a fourth difference between a fourth value displayed by the needle and a fourth value to be displayed by the needle, a computation of a correction value as a function of the first difference, the second difference, the third difference and the fourth difference, the correction value corresponding to a polynomial function of at least the third degree and calibrating and/or correcting the display device based on the correction value.