Flexible display and method for measuring angle of the same
There is provided a flexible display capable of improving an angle-measuring accuracy using different kinds of sensors and a method of measuring an angle thereof. The flexible display includes a first sensor unit disposed in a first region and including different kinds of sensors, a second sensor unit disposed in a second region adjacent to the first region and including different kinds of sensors, and an angle-measuring unit measuring a folding angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit.
1. A flexible display, comprising:
a plurality of sensor units disposed in different regions of the flexible display and including at least one sensor; and
an angle-measuring unit configured to receive sensing signals outputted from the plurality of sensor units and measuring a folding angle between the different regions of the flexible display in response to the sensing signals.
2. The flexible display as claimed in claim 1 , wherein each of the plurality of sensor units comprises at least one of a gyroscope sensor, an acceleration sensor, and a terrestrial magnetism sensor.
3. The flexible display as claimed in claim 1 , wherein the angle-measuring unit measures the folding angle of the flexible display based on sensing signals outputted from a sensor unit disposed in a reference region of the flexible display and sensing signals outputted from a sensor unit disposed in a bending region of the flexible display adjacent to the reference region.
4. The flexible display as claimed in claim 1 , wherein, when each of the plurality of sensor units includes at least two sensors, each of the plurality of sensor units includes different sensors that are operationally responsive to dissimilar stimuli.
5. The flexible display as claimed in claim 4 , wherein the different sensors comprise at least two sensors selected from the group consisting of a gyroscope sensor, an acceleration sensor, and a terrestrial magnetism sensor.
6. The flexible display as claimed in claim 4 , wherein the plurality of sensor units comprise:
a first sensor unit disposed in a first region of the flexible display; and
a second sensor unit disposed in a second region of the flexible display adjacent to the first region.
7. The flexible display as claimed in claim 6 , wherein the angle-measuring unit comprises:
a first angle estimator determining a first angle between the first region and the second region in response to first sensing signals outputted from a first pair of sensors respectively included in the first sensor unit and the second sensor unit, the first pair of sensors operationally responsive to a first stimulus;
a second angle estimator determining a second angle between the first region and the second region in response to second sensing signals outputted from a second pair of sensors respectively included in the first sensor unit and the second sensor unit, the second pair of sensors operationally responsive to a second stimulus; and
an averaging unit outputting an average value between the first angle and the second angle as the folding angle by averaging the first angle determined by the first angle estimator and the second angle determined by the second angle estimator.
8. The flexible display as claimed in claim 7 , wherein, when each of the first sensor unit and the second sensor unit includes at least three different sensors, the angle-measuring unit measures the folding angle in response to sensing signals outputted from two of the at least three different sensors.
9. The flexible display as claimed in claim 6 , wherein the plurality of sensor units further comprise a third sensor unit disposed in a third region adjacent to the first region and including different sensors that are operationally responsive to dissimilar stimuli, and
wherein the angle-measuring unit calculates an angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit and an angle between the first region and the third region in response to sensing signals outputted from the first sensor unit and the third sensor unit.