Light emitting lamp, backlight assembly and display device having the same

1. A light emitting lamp comprising:

a lamp tube longitudinally extended parallel to an extension line defined within the lamp tube; and

a plurality of set electrodes disposed on a periphery of the lamp tube and arranged along the extension line, and comprising a first set electrode and a second set electrode directly adjacent to each other;

further comprising a plurality of electrode insulating parts disposed between the periphery of the lamp tube and the set electrodes;

wherein

the periphery of the lamp tube is divided into a first region and a second region by a plane including the extension line,

each of the set electrodes includes a first electrode disposed on the first region and a second electrode disposed on the second region, and

an electrode insulating part among the plurality of electrode insulating parts overlaps both the first electrode of the first set electrode and first electrode of the second set electrode, and electrically separates the first and second set electrodes from each other,

wherein the electrode insulating part extends between the first electrode of the first set electrode and the first electrode of the second set electrode.

2. The light emitting lamp of claim 1 , wherein the lamp tube comprises a plurality of light emitting regions, and each of the light emitting regions is defined by a portion of the plurality of set electrodes arranged along the extension line, respectively.

3. The light emitting lamp of claim 2 , wherein

the electrode insulating part among the plurality of electrode insulating parts overlaps both a lower surface of a first end of the first electrode of the first set electrode, and a lower surface of a first end of the first electrode of the second set electrode, the first ends of the first electrodes being directly adjacent to each other along the extension line.

4. The light emitting lamp of claim 2 , wherein one continuous reaction space is defined in the lamp tube, and the light emitting regions are included in the reaction space.

5. The light emitting lamp of claim 1 , wherein the lamp tube includes discharge gas disposed therein, and the discharge gas comprises xenon (Xe) gas.

6. The light emitting lamp of claim 1 , wherein the set electrodes comprise a nickel-silver (Ni—Ag) alloy.

7. The light emitting lamp of claim 1 , further comprising a light converting layer on an inner surface of the lamp tube and defining a reaction space in the lamp tube.

8. A backlight assembly comprising:

a plurality of light emitting lamps, each of which includes:

a lamp tube longitudinally extended parallel to an extension line defined within the lamp tube, and

a plurality of set electrodes disposed on an outer surface of the lamp tube and arranged along the extension line, and comprising a first set electrode and a second set electrode directly adjacent to each other,

further comprising a plurality of electrode insulating parts disposed between the outer surface of the lamp tube and the set electrodes,

wherein

the outer surface of the lamp tube is divided into a first region and a second region by a plane including the extension line,

each of the set electrodes includes a first electrode disposed in the first region and a second electrode disposed in the second region, and

an electrode insulating part among the plurality of electrode insulating parts overlaps both the first electrode of the first set electrode and first electrode of the second set electrode, and electrically separates the first and second set electrodes from each other and

a backlight driver controlling luminance of light being provided by the light emitting lamps,

wherein the electrode insulating part extends between the first electrode of the first set electrode and the first electrode of the second set electrode.

9. The backlight assembly of claim 8 , wherein the lamp tube comprises a plurality of light emitting regions, and each of the light emitting regions is defined by a portion of the plurality of set electrodes arranged along the extension line, respectively.

10. The backlight assembly of claim 9 , wherein one continuous reaction space is defined in the lamp tube, and the light emitting regions are included in the reaction space.

11. The backlight assembly of claim 9 , further comprising a plurality of set sockets to which the light emitting lamps are fixed, respectively;

wherein each of the set sockets comprises a first socket electrically connected to the first electrode of the set electrode, and a second socket electrically connected to the second electrode.

12. The backlight assembly of claim 11 , wherein the first socket and the second socket are alternately arranged with each other along the extension line with respect to the light emitting lamp as a center.

13. The backlight assembly of claim 11 , wherein

the first socket comprises a first support part supporting the light emitting lamp and a first conductive terminal contacting the first electrode of the set electrode, and

the second socket comprises a second support part supporting the light emitting lamp and a second conductive terminal contacting the second electrode of the set electrode.

14. The backlight assembly of claim 9 , wherein the backlight driver applies driving voltages to the set electrodes in accordance with luminance values corresponding to the light emitting regions, respectively.

15. The backlight assembly of claim 8 , wherein the light emitting lamps are divided into a plurality of light emitting blocks, and each of the light emitting blocks comprises at least two light emitting regions defined in at least two light emitting lamps; and

wherein the backlight driver controls the at least two light emitting regions included in a same light emitting block so that the at least two light emitting regions have the same luminance.

16. The backlight assembly of claim 15 , further comprising a plurality of the backlight driver, and the light emitting blocks are connected to the backlight drivers, respectively.

17. The backlight assembly of claim 16 , wherein

the light emitting blocks include a first light emitting block and a second light emitting block adjacent to each other, and

the electrode insulating part among the plurality of electrode insulating parts overlaps both a lower surface of a first end of the first electrode of the first set electrode and a lower surface of a first end of the first electrode of the second set electrode, the first ends of the first electrodes being directly adjacent to each other in the direction of the extension line.

18. The backlight assembly of claim 8 , further comprising a light converting layer on an inner surface of the lamp tube and defining a reaction space in the lamp tube.

19. A display device comprising:

a liquid crystal panel displaying images;

a backlight assembly disposed below the liquid crystal panel and comprising:

a plurality of light emitting lamps generating and providing light to the liquid crystal panel, each light emitting lamp including:

a lamp tube longitudinally extended in a first direction parallel an extension line defined within the lamp tube, and

a plurality of set electrodes disposed on an outer surface of the lamp tube and arranged along the extension line, and comprising a first set electrode and a second set electrode directly adjacent to each other,

further comprising a plurality of electrode insulating parts disposed between the outer surface of the lamp tube and the set electrodes,

wherein

the periphery of the lamp tube is divided into a first region and a second region by a plane including the extension line,

each of the set electrodes includes a first electrode disposed in the first region and a second electrode disposed in the second region; and

an electrode insulating part among the plurality of electrode insulating parts overlaps both the first electrode of the first set electrode and first electrode of the second set electrode, and electrically separates the first and second set electrodes from each other, and

a backlight driver controlling luminance of light being provided by the light emitting lamps,

wherein the electrode insulating part extends between the first electrode of the first set electrode and the first electrode of the second set electrode.

20. The display device of claim 19 , wherein the light emitting lamps are divided into a plurality of light emitting blocks, and each of the light emitting blocks comprises at least two light emitting regions defined in at least two light emitting lamps; and

wherein the backlight driver controls the at least two light emitting regions included in a same light emitting block so that the at least two light emitting regions have the same luminance.

21. The display device of claim 19 , wherein the lamp tube includes a plurality of light emitting regions, and each of the light emitting regions is defined by a portion of the plurality of set electrodes arranged along the extension line, respectively.

22. The display device of claim 21 , further comprising a plurality of set sockets to which the light emitting lamps are fixed, respectively;

wherein each of the set sockets comprises a first socket electrically connected to the first electrode of the set electrode, and a second socket electrically connected to the second electrode.

23. The display device of claim 22 , wherein the first socket and the second socket are alternately arranged along the first direction with respect to the light emitting lamp as a center.

24. The display device of claim 22 , further comprising a lower receptacle accommodating the backlight assembly therein;

wherein a portion of each of the set sockets is disposed to penetrate the lower receptacle and fix the light emitting lamps to the lower receptacle.

25. The display device of claim 19 , further comprising a light converting layer on an inner surface of the lamp tube and defining a reaction space in the lamp tube.