Dashboard display and control method thereof

1. A dashboard display for a vehicle, the dashboard display comprising:

a light source unit including a plurality of light sources disposed in a matrix form;

a display unit disposed on the light source unit and configured to display speedometer information using light provided from the light source unit;

a needle positioned on the speedometer information and rotatably moving according to a speed of the vehicle; and

a processor configured to:

determine a region at least partially surrounding the needle based on a position of the needle, wherein a shape of the region at least partially surrounding the needle is changed according to an acceleration of the vehicle,

control the display unit to display an image of a predetermined color on the region at least partially surrounding the needle, and

control the light source unit to emit a predetermined brightness in the region at least partially surrounding the needle such that a contrast of the image is varied.

2. The dashboard display of claim 1 , wherein the processor is further configured to:

individually control at least one of a brightness and an ON/OFF state of the light sources included in the light source unit, and

control at least one of the light sources corresponding to the region at least partially surrounding the needle to have the predetermined brightness.

3. The dashboard display of claim 2 , wherein the processor is further configured to:

control the at least one of the light sources corresponding to the region at least partially surrounding the needle to output light having a first brightness and control other remaining light sources to output light having a second brightness.

4. The dashboard display of claim 2 , wherein the processor is further configured to turn on light sources included in a first group and turn off light sources included in a second group of the light sources.

5. The dashboard display of claim 1 , wherein the region at least partially surrounding the needle includes an edge region surrounding at least a portion of the needle.

6. The dashboard display of claim 1 , wherein the region at least partially surrounding the needle includes a first region surrounding at least a portion of the needle and a second region surrounding at least a portion of the first region, and

wherein the processor is further configured to control the light source unit such that the first region and the second region have different brightnesses.

7. The dashboard display of claim 6 , wherein the second region has different display sizes according to different speeds of the vehicle.

8. The dashboard display of claim 1 , wherein the processor is further configured to control the display unit to stop displaying at least a portion of the speedometer information.

9. The dashboard display of claim 8 , wherein the processor is further configured to control the display unit to display an image having a predetermined color to the region at least partially surrounding the needle.

10. The dashboard display of claim 1 , wherein the processor is further configured to control the light source unit to change at least one of a size and a shape of the region at least partially surrounding the needle according to an acceleration of the vehicle.

11. The dashboard display of claim 10 , wherein when the vehicle is decelerating, the region at least partially surrounding the needle has a first shape, and when the vehicle is accelerating, the region at least partially surrounding the needle has a second shape different from the first shape.

12. The dashboard display of claim 1 , further comprising:

an illumination sensor configured to sense an illumination value,

wherein the processor is further configured to change at least one of a size and a shape of the region at least partially surrounding the needle according to the illumination value.

13. The dashboard display of claim 1 , wherein the display unit includes a hollow portion, and the needle rotatably moves according to a rotation of a rotational shaft penetrating through the hollow portion.

14. The dashboard display of claim 1 , wherein the needle is a graphic object displayed by the display unit.

15. The dashboard display of claim 1 , wherein the processor is further configured to:

calculate an allowable driving speed range in which a driving speed is accelerated or decelerated per unit time, and

set the region at least partially surrounding the needle based on the allowable driving speed range.

16. The dashboard display of claim 15 , wherein the processor is further configured to vary the allowable driving speed range according to characteristics of a road on which the vehicle is driving.

17. A method of controlling a dashboard display for a vehicle, the method comprising:

displaying, via a display unit of the dashboard display, speedometer information using light provided from a light source unit including a plurality of light sources disposed in a matrix form;

sensing, via a processor of the dashboard display, a needle positioned on the speedometer information and rotatably moving according to a speed of the vehicle;

determining, via the processor, a region at least partially surrounding the needle based on a position of the needle, wherein a shape of the region at least partially surrounding the needle is changed according to an acceleration of the vehicle;

displaying, via the display unit, an image of a predetermined color on the region at least partially surrounding the needle; and

controlling, via the processor, the light source unit to emit a predetermined brightness in the region at least partially surrounding the needle such that a contrast of the image is varied.

18. The method of claim 17 , further comprising:

individually controlling at least one of a brightness and an ON/OFF state of the light sources included in the light source unit; and

controlling at least one of the light sources corresponding to the region at least partially surrounding the needle to have the predetermined brightness.

19. The method of claim 18 , further comprising:

controlling the at least one of the light sources corresponding to the region at least partially surrounding the needle to output light having a first brightness and control other remaining light sources to output light having a second brightness.

20. The method of claim 18 , further comprising:

turning on light sources included in a first group and turn off light sources included in a second group of the light sources.