Display device and control method therefor
A display device and a control method therefor are provided. The display device includes a casing having an opening, a display configured to be inserted into or withdrawn from the casing through the opening, a motor gear assembly connected to the display to move the display, and a sensor configured to measure a distance between the display and an inner wall of the casing. Movement of the display is controlled based on values measured by the sensor.
1 . A display device, comprising:
a casing having an opening;
a display configured to be inserted into or withdrawn from the casing through the opening;
a motor gear assembly connected to move the display; and
a sensor configured to measure a distance between the display and an inner wall of the casing,
wherein the sensor measures the distance in a direction perpendicular to a movement direction of the display, and
wherein movement of the display is controlled based on values measured by the sensor.
2 . The display device of claim 1 , wherein the sensor is disposed on the display and measures a distance to one point on the inner wall of the casing in a direction parallel to a movement direction of the display.
3 . The display device of claim 1 , wherein the sensor is disposed on the inner wall of the casing and measures a distance to one point on the display in a direction parallel to a movement direction of the display.
4 . The display device of claim 1 , wherein the display is withdrawable from the casing according to a plurality of withdrawal modes, each withdrawal mode corresponding to a range of the values measured by the sensor, respectively, and a withdrawal mode of the display is determined based on the values measured by the sensor.
5 . The display device of claim 1 , further comprising a controller programmed for:
checking a position of the display based on the values measured by the sensor;
receiving a mode signal initiated by a user;
driving a motor of the motor gear assembly based on the mode signal initiated by the user; and
determining whether the display has been moved according to the mode signal initiated by the user based on the values measured by the sensor.
6 . The display device of claim 1 , wherein the sensor is disposed on a rear surface of the display and configured to measure the distance in a direction perpendicular to a movement direction of the display, the inner wall of the casing includes a mode control structure having a shape along which a horizontal distance to the sensor changes in the movement direction of the display, and the sensor is configured to measure a distance between the rear surface of the display and the mode control structure.
7 . The display device of claim 6 , wherein the display is withdrawable from the casing according to a plurality of withdrawal modes having different withdrawal ranges, the plurality of withdrawal modes corresponding to values measured by the sensor, respectively, and a withdrawal mode of the display is determinable based on the values measured by the sensor.
8 . The display device of claim 1 , wherein the sensor is disposed on the inner wall of the casing and measures the distance in a direction perpendicular to a movement direction of the display, a rear surface of the display includes a mode control structure having a shape along which a horizontal distance to the sensor changes with the movement direction of the display, and the sensor is configured to measure a distance between the inner wall of the casing and the mode control structure.
9 . The display device of claim 8 , wherein the display is withdrawable from the casing according to a plurality of withdrawal modes having different withdrawal ranges, the plurality of withdrawal modes corresponding to values measured by the sensor, respectively, and a withdrawal mode of the display is determinable based on the values measured by the sensor.
10 . The display device of claim 1 , wherein the sensor is disposed on a rear surface of the display and measures the distance in a direction perpendicular to a movement direction of the display, the inner wall of the casing includes a mode control structure having a shape along which a horizontal distance to the sensor continuously changes during movement of the display in the movement direction of the display, and the sensor is configured to measure a distance between the rear surface of the display and the mode control structure.
11 . The display device of claim 10 , wherein the display is withdrawable from a casing according to a plurality of withdrawal modes having different withdrawal ranges, the plurality of withdrawal modes each corresponding to a range of values measured by the sensor, respectively, and a withdrawal mode of the display is determinable based on the values measured by the sensor.
12 . The display device of claim 1 , wherein the sensor is disposed on the inner wall of the casing and measures the distance in a direction perpendicular to a movement direction of the display, a rear surface of the display includes a mode control structure having a shape along which a horizontal distance to the sensor continuously changes during movement of the display in the movement direction of the display, and the sensor is configured to measure a distance between the inner wall of the casing and the mode control structure.
13 . The display device of claim 12 , wherein the display is withdrawable from a casing according to a plurality of withdrawal modes having different withdrawal ranges, the plural withdrawal modes each corresponding to a range of values measured by the sensor, respectively, and a withdrawal mode of the display is determined based on the values measured by the sensor.
14 . A vehicle including the display device of claim 1 , wherein the display device is mounted on a center fascia or a dashboard of the vehicle.
15 . A display device, comprising:
a casing having an opening;
a display structure comprising a display that is configured to be extended from or retracted into the casing through the opening;
a motor gear assembly connected to move the display structure; and
a sensor configured to measure a lateral distance between the display structure and an inner wall of the casing;
wherein the distance changes according to withdrawal of the display structure from the casing, and
wherein the display device is configured to measure a withdrawal range of the display structure by checking a degree of withdrawal of the display based on a value measured by the sensor.
16 . A method of operating a display device with a retractable display, the display device comprising a casing having an opening with the retractable display configured to be inserted into or withdrawn from the casing through the opening by operation of a motor gear assembly, the display device further comprising a sensor configured and arranged to measure a distance between the display and an inner wall of the casing, the method comprising:
checking a position of the display based on values measured by the sensor;
receiving a mode signal initiated by a user;
driving a motor of the motor gear assembly based on the mode signal initiated by the user; and
determining whether the display has been moved according to the mode signal by the user based on values measured by the sensor;
wherein checking the position of the display based on values measured by the sensor comprising measuring, with the sensor, a distance between the sensor and a mode control structure, wherein the mode control structure has a shape that varies along a movement direction of the display.
17 . The method of claim 16 , wherein the mode control structure is disposed on the inner wall of the casing and the sensor is disposed on the display.
18 . The method of claim 16 , wherein the mode control structure is disposed on the display and the sensor is disposed on the inner wall of the casing.
19 . The method of claim 16 , further comprising reducing energy consumption by operating only a portion of the display that extends outside the casing.