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:
Feb. 16, 2010
Filed:
Mar. 27, 2006
Jin-hwan Kim, Suwon-si, KR;
Jin-seung Choi, Suwon-si, KR;
Jee-hong Min, Yongin-si, KR;
Jae-ho You, Seoul, KR;
Su-mi Lee, Hwaseong-si, KR;
Yoon-sun Choi, Incheon-si, KR;
Jin-hwan Kim, Suwon-si, KR;
Jin-Seung Choi, Suwon-si, KR;
Jee-hong Min, Yongin-si, KR;
Jae-ho You, Seoul, KR;
Su-mi Lee, Hwaseong-si, KR;
Yoon-sun Choi, Incheon-si, KR;
Samsung Electro-Mechanics Co., Ltd, Suwon-si, KR;
Abstract
A diffuser sheet which compensates for chromatic dispersion generated in a hologram light guide plate, and an illumination apparatus employing the diffuser sheet are provided. The diffuser sheet includes a plate type light-transmissive substrate and a light diffusion layer disposed on a light emission surface of the light-emission substrate. A light-incident surface of the light-transmissive substrate has declined surfaces and flat surfaces which are alternatively and repeatedly formed thereon. The declined surfaces are declined at a predetermined angle.