The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2007
Filed:
Nov. 04, 2003
Jin-hwan Kim, Suwon, KR;
Hwan-young Choi, Anyang, KR;
Moon-gyu Lee, Suwon, KR;
Su-mi Lee, Suwon, KR;
Jin-seung Choi, Suwon, KR;
Jee-hong Min, Yongin, KR;
Jin-hwan Kim, Suwon, KR;
Hwan-young Choi, Anyang, KR;
Moon-gyu Lee, Suwon, KR;
Su-mi Lee, Suwon, KR;
Jin-seung Choi, Suwon, KR;
Jee-hong Min, Yongin, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A backlight unit is provided including a light guide panel (LGP), a point light source emitting light at an edge of the LGP; and a refraction member being positioned between the point light source and the LGP and refracting the light emitted from the point light source toward the optical axis of the point light source in order to reduce the azimuth angle of the light that is incident upon the LGP. The refraction member includes a prism array in which a V-shaped prism pattern is repeatedly arrayed, the apex of the prism pattern facing the edge of the LGP, and a transparent portion that prevents the light from being totally reflected by the prism pattern in a region along an optical axis of the light source.