| US 7,450,809 B2 | ||
| Optical unit, a method of manufacturing the same, a backlight assembly having the same and a display device having the same | ||
| Jin-Sung Choi, Cheonan-si (Korea, Republic of); Jheen-Hyeok Park, Seongnam-si (Korea, Republic of); and Ju-Hwa Ha, Seoul (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-Si (Korea, Republic of) | ||
| Filed on Jul. 25, 2006, as Appl. No. 11/492,714. | ||
| Claims priority of application No. 10-2005-0067104 (KR), filed on Jul. 25, 2005. | ||
| Prior Publication US 2007/0019131 A1, Jan. 25, 2007 | ||
| Int. Cl. G02B 6/10 (2006.01) | ||
| U.S. Cl. 385—129 [385/901] | 25 Claims |
| 1. An optical unit comprising:
a transparent body;
a diffusion part formed on the body to diffuse light; and
a luminance increasing part including an embossing pattern formed on the diffusion part to increase a luminance of the diffused
light when viewed on a plane, wherein a first side of the diffusion part is in continuous contact with a surface of the body
and a second side of the diffusion part is in continuous contact with a surface of the luminance increasing part,
wherein a side of the embossing pattern makes contact with the diffusion part.
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