Planar lighting device
A display device including a lower cover; a circuit substrate on the lower cover; a plurality of light sources disposed on the circuit substrate; a reflection layer disposed on the lower cover; a light regulating pattern disposed close to an edge of the reflection layer; and an optical sheet disposed on the light sources. Further, a width of the light regulating pattern changes along the edge of the reflection layer.
1. A display device comprising:
a lower cover;
a circuit substrate on the lower cover;
a plurality of light sources disposed on the circuit substrate;
a reflection layer disposed on the lower cover;
a light regulating pattern disposed close to an edge of the reflection layer; and
an optical sheet disposed on the light sources,
wherein a width of the light regulating pattern changes along the edge of the reflection layer.
2. The display device of claim 1 , wherein the width of the light regulating pattern changes as a distance from a respective light source changes.
3. The display device of claim 1 , wherein the width of the light regulation pattern aligned to a respective light source is greater than a width of the light regulating pattern not aligned to the respective light source.
4. The display device of claim 1 , wherein the width of the light regulation pattern disposed farthest from a respective light source has a smallest width.
5. The display device of claim 1 , wherein the width of the light regulating pattern decreases with an increasing distance from a respective light source.
6. The display device of claim 1 , wherein the width of the light regulating pattern gradually decreases with an increasing distance from a respective light source.
7. The display device of claim 1 , wherein the light regulating pattern having a greatest width is disposed in a first position closest to a respective light source.
8. The display device of claim 7 , wherein the light regulating pattern having a smallest width is disposed in a second position spaced from the first position.
9. The display device of claim 1 , wherein the light regulating pattern includes a plurality of light regulating patterns.
10. The display device of claim 9 , wherein at least some of the light regulating patterns are arranged in a different interval.
11. The display device of claim 9 , wherein at least some of the light regulating patterns have a substantially same width.
12. The display device of claim 9 , wherein at least some of the light regulating patterns are disposed along a first line.
13. The display device of claim 12 , wherein the plurality of light sources are disposed along a second line, and
wherein the first line is perpendicular to the second line.
14. The display device of claim 9 , wherein the plurality of light regulating patterns are arranged in parallel with the edge.
15. The display device of claim 1 , wherein the light regulating pattern has a circular shape.
16. The display device of claim 1 , wherein the light regulating pattern disposed closest to a respective light source absorbs more light than the light regulating pattern disposed farther from the respective light source.
17. The display device of claim 1 , wherein the circuit substrate includes at least two circuit substrates disposed on the lower cover and spaced apart from each other.
18. The display device of claim 1 , wherein the light regulating pattern includes through holes.
19. The display device of claim 1 , wherein the light regulating pattern is arranged at first opposite sides of the reflection layer.
20. The display device of claim 19 , wherein the light regulating pattern is arranged at second opposite sides of the reflection layer, and
wherein the first sides are perpendicular to the second sides.