Granted Patent B2

US 12,215,856 · App. 18/650,953 · Granted Feb 4, 2025

Inventors: Sewon Oh (Seoul, KR); Eunseok Kim (Seoul, KR)

Assignee: LG ELECTRONICS INC.

F21V7/0066G02F1/133603G02F1/133605G02F1/133607G02F1/133611F21Y2105/10F21Y2115/10G02F1/133606

Abstract

Claims (45)

1. A display device comprising:

a display panel;

a frame at a rear of the display panel;

a light source on a substrate between the display panel and the frame, the light source providing light for the display panel; and

a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side,

wherein the reflecting sheet includes:

a first sheet part forming a central area of the reflecting sheet;

a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas; and

a hole next to a border line between the first sheet part and the second sheet part,

wherein at least one of the dot areas in the second sheet part is formed along the first short side or the second short side,

wherein the at least one of the dot areas including a first dot area next to the hole in a parallel direction of the first long side or the second long side and a second dot area next to the first dot area in a parallel direction of the first short side or the second short side, and

wherein a density of dots in the first dot area is different from a density of dots in the second dot area.

2. The display device of claim 1 , wherein the density of the dots in the first dot area is smaller than the density of the dots in the second dot area.

3. The display device of claim 1 , wherein a size of the dots in the first dot area is smaller than a size of the dots in the second dot area, and

wherein each of the dot areas is defined by all of the same size dots next to each other.

4. The display device of claim 1 , wherein the first dot area includes a plurality of first dot areas, and

wherein a density of the plurality of first dot areas gradually changes in the parallel direction of the first long side or the second long side.

5. The display device of claim 4 , wherein the density of the plurality of first dot areas gradually increases in the parallel direction of the first long side or the second long side.

6. The display device of claim 5 , wherein the plurality of first dot areas includes an inner first dot area and an outer first dot area,

wherein the inner first dot area is closer to the border line than the outer first dot area, and

wherein a density of dots in the outer first dot area is greater than a density of dots in the inner first dot area.

7. The display device of claim 5 , wherein the plurality of first dot areas includes an inner first dot area and an outer first dot area,

wherein the inner first dot area is closer to the border line than the outer first dot area,

wherein a size of dots in the outer first dot area is greater than a size of dots in the inner first dot area, and

wherein each of the dot areas is defined by all of the same size dots next to each other.

8. The display device of claim 6 , wherein the plurality of first dot areas further includes a middle first dot area between the inner first dot area and the outer first dot area, and

wherein a density of dots in the middle first dot area is greater than the density of dots in the inner first dot area and the density of dots in the middle first dot area is smaller than the density of dots in the outer first dot area.

9. The display device of claim 8 , wherein a size of dots in the middle first dot area is greater than a size of dots in the inner first dot area and the size of dots in the middle first dot area is smaller than a size of dots in the outer first dot area, and

wherein each of the dot areas is defined by all of the same size dots next to each other.

10. The display device of claim 1 , wherein the second dot area includes a plurality of second dot areas, and

wherein a density of the plurality of second dot areas gradually changes in the parallel direction of the first long side or the second long side.

11. The display device of claim 10 , wherein the density of the plurality of second dot areas gradually increases in the parallel direction of the first long side or the second long side.

12. The display device of claim 10 , wherein the plurality of second dot areas includes an inner second dot area and an outer second dot area,

wherein the inner second dot area is closer to the border line than the outer second dot area, and

wherein a density of dots in the outer second dot area is greater than a density of dots in the inner second dot area.

13. The display device of claim 12 , wherein the plurality of second dot areas further includes a middle second dot area between the inner second dot area and the outer second dot area, and

wherein a density of dots in the middle second dot area is greater than the density of dots in the inner second dot area and the density of dots in the middle second dot area is smaller than the density of dots in the outer second dot area.

14. The display device of claim 13 , wherein a size of dots in the middle second dot area is greater than a size of dots in the inner second dot area and the size of dots in the middle second dot area is smaller than the size of dots in the outer second dot area, and

wherein each of the dot areas is defined by all of the same size dots next to each other.

15. The display device of claim 1 , wherein the substrate is aligned with the hole of the reflecting sheet.

16. The display device of claim 1 , further comprising a fixing pin coupled to the frame, wherein the fixing pin fixes the reflecting sheet to the frame.

17. The display device of claim 1 , wherein the reflecting sheet further comprises a plurality of circled dot areas in the first sheet part, wherein each of the plurality of circled dot areas includes a plurality of rows with circled dots.

18. The display device of claim 17 , wherein a color of the plurality of circled dot areas is darker than a color of the reflecting sheet.

19. The display device of claim 1 , wherein the reflecting sheet further comprises a plurality of fan shaped dot areas in the first sheet part, wherein each of the plurality of fan shaped dot areas faces the first long side or the second long side of the reflecting sheet part.

20. The display device of claim 19 , wherein the plurality of fan shaped dot areas is disposed between the substrate and the first long side or the substrate and the second long side of the reflecting sheet.

Priority Claims (2)

Continuity (7)

References Cited (73)