LED device having a tilted peak emission and an LED display including such devices

1. A light emitting diode (LED) package comprising:

a reflector cup having a bottom surface and a wall surface inclined relative to the bottom surface and defining an opening at an upper end thereof; and

an LED mounted on the bottom surface,

wherein the bottom surface has a first axial dimension along a first axis and a second axial dimension along a second axis orthogonal to the first axis; and

wherein a crossing point of the first and second axis is asymmetrically positioned with respect to a geometric center of the of the bottom surface.

2. The LED package of claim 1 , wherein the first axial dimension is about 0.2 mm to about 0.4 mm longer than the second axial dimension.

3. The LED package of claim 1 , wherein an area of the bottom surface is greater than an area of a bottom surface of the LED and less than an area of the opening.

4. The LED package of claim 1 , wherein the first axial dimension is about 0.95 mm to about 1.05 mm.

5. The LED package of claim 1 , wherein the second axial dimension is about 0.75 mm to about 0.85 mm.

6. The LED package of claim 1 , wherein the wall surface has a height about 0.2 mm to about 0.3 mm.

7. The LED package of claim 1 , wherein the LED is displaced away from a crossing point of a first and second axis.

8. The LED package of claim 1 , wherein a crossing point of the first and second axis coincides with a geometric center of the bottom surface.

9. A light emitting diode (LED) package comprising:

a reflector cup having a bottom surface and a wall surface inclined relative to the bottom surface and defining an opening at an upper end thereof; and

an LED mounted on the bottom surface,

wherein a geometric center of the opening is displaced away from a crossing point of the first and second axis.

10. The LED package of claim 1 , wherein a geometric center of the opening coincides with a crossing point of the first and second axis.

11. The LED package of claim 1 , wherein a wall extending away from the wall surface has non-uniform thickness.

12. The LED package of claim 11 , wherein a degree of inclination of the wall surface relative to the bottom surface continually varies such that the wall surface has a steep portion and a shallow portion.

13. The LED package of claim 12 , wherein the shallow portion is inclined at an angle of about 40° to about 50° relative to the bottom surface, and the steep portion is inclined at an angle of about 50° to about 85° relative to the bottom surface.

14. The LED package of claim 2 , wherein the ratio of the first axial dimension to the second axial dimension is about 5:4.

15. A light emitting diode (LED) package comprising:

a reflector cup having a bottom surface and a wall surface inclined relative to the bottom surface and defining an opening at an upper end thereof; and

an LED mounted on the bottom surface,

further comprising a dome-shaped lens asymmetrically positioned with respect to a geometric center of the bottom surface and that covers the reflector cup.

16. The LED package of claim 15 , wherein the lens has an asymmetric cross-section having a first dimension of about 3.5 mm to about 4.5 mm and a second dimension orthogonal to the first dimension of about 2.5 to about 3.5 mm.

17. The LED package of claim 16 , wherein the lens has a profile height of about 5.3 mm to about 7.3 mm.

18. The LED package of claim 15 , wherein the lens has rounded upper surface having a geometric center that is displaced about 0.2 mm to about 0.4 mm away from the geometric center with respect to a bottom cross-section of the lens.

19. The LED package of claim 15 , wherein LED package generates a peak luminous intensity of about 3000 mcd and has a working current less than about 20 mA.

20. A light emitting diode (LED) package comprising:

a reflector cup having a bottom surface and a wall surface inclined relative to the bottom surface and defining an opening at an upper end thereof; and

an LED mounted on the bottom surface,

wherein the bottom surface has a first axial dimension along a first axis and a second axial dimension along a second axis orthogonal to the first axis, the bottom surface has a curved border portion and a straight border portion, the curved border portion has a length greater than half of a perimeter of the bottom surface.

21. The LED package of claim 20 , wherein the straight border portion has a length less than the first axial dimension.

22. A light emitting diode (LED) package comprising:

a reflector cup having a bottom surface and a wall surface inclined relative to the bottom surface and defining an opening at an upper end thereof; and

an LED mounted on the bottom surface,

wherein the bottom surface has a first axial dimension along a first axis and a second axial dimension less than the first axial dimension along a second axis orthogonal to the first axis, and

wherein the LED is mounted on the second axis and away from a crossing point of the first and second axis.

23. The LED package of claim 22 , wherein the wall surface has a height less than about 0.25 mm.

24. The LED package of claim 23 , wherein the height is less than about 0.2 mm.

25. The LED package of claim 23 , wherein the height is less than about 0.15 mm.

26. The LED package of claim 23 , wherein the height is about 0.16 mm to about 0.24 mm.

27. The LED package of claim 1 , wherein the first axial dimension is about 0.91 mm to about 1.1 mm and the second axial dimension is about 0.66 mm to about 0.91 mm.