| US 7,573,543 B2 | ||
| Light guide panel and display device employing the same | ||
| Jin-seung Choi, Suwon-si (Korea, Republic of); Jee-hong Min, Yongin-si (Korea, Republic of); and Jin-Hwan Kim, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electro-Mechanics Co., Ltd, Suwon-Si (Korea, Republic of) | ||
| Filed on Aug. 18, 2006, as Appl. No. 11/505,896. | ||
| Claims priority of application No. 10-2006-0004479 (KR), filed on Jan. 16, 2006. | ||
| Prior Publication US 2007/0165423 A1, Jul. 19, 2007 | ||
| Int. Cl. G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02B 6/00 (2006.01); G02B 6/10 (2006.01) | ||
| U.S. Cl. 349—65 [385/129; 385/901] | 24 Claims |
| 1. A light guide panel comprising:
an incidence surface facing a light source and which transmits light from the light source;
an upper surface which transmits light transmitted through the incidence surface;
at least one dark portion reducing unit formed in the incidence surface below the upper surface and positioned along the incidence
surface adjacent to a position of the light source and which reflects light toward the upper surface; and
a lower surface facing the upper surface which reflects light toward the upper surface,
wherein the dark portion reducing unit comprises a groove that extends obliquely from the incidence surface toward the lower
surface.
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