Backlight assembly with improved strength and display device having the same

1. A backlight assembly comprising:

a light source; and

a fixing member receiving the light source having at least one deflection preventing portion that has a predetermined width and is integrally formed with a surface of the fixing member in a direction crossing a diagonal of the surface of the fixing member, wherein the deflection preventing portion is formed by making unevenness in the surface.

2. The backlight assembly of claim 1 , wherein the at least one deflection preventing portion comprises a plurality of deflection preventing portions and wherein the plurality of deflection preventing portions includes:

at least one first deflection preventing portion formed on the surface of the fixing member in a direction crossing a first diagonal of the surface of the fixing member; and

at least one second deflection preventing portion formed on the surface of the fixing member in a direction crossing a second diagonal of the surface of the fixing member.

3. The backlight assembly of claim 2 , wherein the at least one first deflection preventing portion comprises a plurality of first deflection preventing portions and the at least second deflection preventing portion comprises a plurality of second deflection preventing portions, and

wherein the plurality of first deflection preventing portions and the plurality of second deflection preventing portions are formed to be alternately connected in an upper half area and a lower half area on the surface of the fixing member.

4. The backlight assembly of claim 3 , wherein the deflection preventing portions formed in the upper half area are symmetrical to the deflection preventing portions formed in the lower half area.

5. The backlight assembly of claim 3 , wherein at least one connecting portion for connecting the first deflection preventing portions and the second deflection preventing portions is formed on the surface of the fixing member.

6. The backlight assembly of claim 5 , wherein the at least one connecting portion is formed by pressing the fixing member.

7. The backlight assembly of claim 5 , wherein the at least one connecting portion comprises a plurality of the connecting portions and wherein the plurality of connecting portions are formed to be parallel to each other.

8. The backlight assembly of claim 5 , further comprising a reflecting sheet located to be adjacent to the surface of the fixing member,

wherein the at least one connecting portion is protruded toward the reflecting sheet.

9. The backlight assembly of claim 2 , wherein the at least one first deflection preventing portion comprises a plurality of first deflection preventing portions and wherein the plurality of first deflection preventing portions are formed to be parallel to each other.

10. The backlight assembly of claim 2 , wherein the at least one second deflection preventing portion comprises a plurality of second deflection preventing portions and wherein the plurality of second deflection preventing portions are formed to be parallel to each other.

11. The backlight assembly of claim 2 , wherein at least one first deflection preventing portion comprises a plurality of first deflection preventing portions that are formed to extend to at least one corner of two corners in a direction of the second diagonal.

12. The backlight assembly of claim 11 , wherein at least one second deflection preventing portion comprises a plurality of second deflection preventing portions crossing the second diagonal and being connected to the plurality of first deflection preventing portions.

13. The backlight assembly of claim 2 , wherein at least one second deflection preventing portion comprises a plurality of second deflection preventing portions that are formed to extend to at least one corner of two corners in a direction of the first diagonal.

14. The backlight assembly of claim 13 , wherein at least one first deflection preventing portion comprises a plurality of first deflection preventing portions crossing the first diagonal and being connected to the plurality of second deflection preventing portions.

15. The backlight assembly of claim 3 , wherein the number of the plurality of the first deflection preventing portions is 4, 6, or 8.

16. The backlight assembly of claim 3 , wherein the number of the plurality of the second deflection preventing portions is 4, 6, or 8.

17. The backlight assembly of claim 1 , wherein the at least one deflection preventing portion forms an angle αa with respect to the diagonal of the surface of the fixing member, and the angle satisfies the following expression,

arctan( W/L )<α<90°

where W denotes the width of the surface of the fixing member and L denotes the length of the surface of the fixing member.

18. The backlight assembly of claim 1 , further comprising a reflecting sheet which is received to be adjacent to the surface of the fixing member,

wherein the at least one deflection preventing portion is protruded toward the reflecting sheet.

19. The backlight assembly of claim 1 , wherein the light source includes a plurality of lamps positioned adjacent each other, and the plurality of lamps are received side by side in the fixing member.

20. The backlight assembly of claim 1 , wherein the at least one deflection preventing portion is formed by pressing the fixing member.

21. The backlight assembly of claim 1 , wherein the surface faces outside of the fixing member.