Display device and backlight unit for the same
View Patent ↗A backlight unit for a display device is disclosed. The backlight unit includes a first optical sheet, a light source to supply light to the first optical sheet, and a first antireflection layer on a surface of the first optical sheet.
1. A backlight unit for a display device, comprising:
a first optical sheet;
a light source to supply light to the first optical sheet;
a first antireflection layer on a surface of the first optical sheet, wherein the first antireflection layer includes colloid particles distributed on a surface of the first antireflection layer;
second, third and fourth optical sheets, wherein the four optical sheets are a diffusion sheet, first and second prism sheets, and a protection sheet; and
at least one second antireflection layer, the at least one second antireflection layer being disposed on surfaces of the second to fourth optical sheets, wherein the at least one second antireflection layer includes colloid particles distributed on a surface of the at least one second antireflection layer.
2. The backlight unit according to claim 1 , wherein the first antireflection layer is on a bottom surface of the first optical sheet.
3. The backlight unit according to claim 1 , wherein the first antireflection layer is on a top surface of the first optical sheet.
4. The backlight unit according to claim 1 , further comprising a first bottom antireflection layer on a bottom surface of the first optical sheet.
5. The backlight unit according to claim 1 , wherein the colloid particles include polystylene.
6. The backlight unit according to claim 1 , wherein the colloid particles distributed on the surface of the at least one second antireflection layer include polystylene.
7. The backlight unit according to claim 1 , further comprising a light guide panel on a bottom surface of the first optical sheet, wherein the light source is disposed at one side of the light guide panel.
8. The backlight unit according to claim 7 , further comprising a reflector on a bottom surface of the light guide panel.
9. The backlight unit according to claim 1 , wherein the light source is disposed directly underneath a bottom surface of the first optical sheet.
10. The backlight unit according to claim 9 , wherein the light source includes a plurality of lamps arranged in parallel.
11. The backlight unit according to claim 10 , further comprising a reflector directly underneath the light source.
12. A backlight unit for a display device, comprising:
a first optical sheet;
a light source to supply light to the first optical sheet;
a first antireflection layer on a surface of the first optical sheet, wherein the first antireflection layer includes colloid particles distributed on a surface of the first antireflection layer;
second, third and fourth optical sheets, wherein the four optical sheets are a diffusion sheet, first and second prism sheets, and a protection sheet; and
at least one second antireflection layer, the at least one second antireflection layer being disposed on surfaces of the second to fourth optical sheets, wherein the at least one second antireflection layer includes an uneven surface, wherein the at least one second antireflection layer includes AZO polymer.
13. A display device, comprising:
a display panel;
a first optical sheet on a bottom surface of the display panel;
a light source to supply light to the first optical sheet;
a first antireflection layer on a surface of the first optical sheet, wherein the first antireflection layer includes colloid particles distributed on a surface of the first antireflection layer;
second, third and fourth optical sheets, wherein the four optical sheets are a diffusion sheet, first and second prism sheets, and a protection sheet; and
at least one second antireflection layer, the at least one second antireflection layer being disposed on surfaces of the second to fourth optical sheets.
14. The display device according to claim 13 , wherein the first antireflection layer is on a bottom surface of the first optical sheet.
15. The display device according to claim 13 , wherein the first antireflection layer is on a top surface of the first optical sheet.
16. The display device according to claim 13 , further comprising a first bottom antireflection layer on a bottom surface of the first optical sheet.
17. The display device according to claim 13 , wherein the colloid particles include polystylene.
18. The display device according to claim 13 , wherein the at least one second antireflection layer includes an uneven surface.
19. The display device according to claim 18 , wherein the at least one second antireflection layer includes AZO polymer.
20. The display device according to claim 13 , wherein the at least one second antireflection layer includes colloid particles distributed on a surface of the at least one second antireflection layer.
21. The display device according to claim 20 , wherein the colloid particles distributed on the surface of the at least one second antireflection layer include polystylene.
22. The display device according to claim 13 , further comprising a light guide panel on a bottom surface of the first optical sheet, wherein the light source is disposed at one side of the light guide panel.
23. The display device according to claim 22 , further comprising a reflector on a bottom surface of the light guide panel.
24. The display device according to claim 13 , wherein the light source is disposed directly underneath a bottom surface of the first optical sheet.
25. The display device according to claim 24 , wherein the light source includes a plurality of lamps arranged in parallel.
26. The display device according to claim 25 , further comprising a reflector directly underneath the light source.
27. The display device according to claim 13 , wherein the display panel is a flat panel.
28. The display device according to claim 27 , wherein the display panel is a liquid crystal panel.