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:
Aug. 07, 2007
Filed:
Jun. 27, 2002
Moon-gyu Lee, Suwon-si, KR;
Hwan-young Choi, Anyang-si, KR;
Jin-seung Choi, Suwon-si, KR;
Jee-hong Min, Yongin-si, KR;
Moon-Gyu Lee, Suwon-si, KR;
Hwan-Young Choi, Anyang-si, KR;
Jin-Seung Choi, Suwon-si, KR;
Jee-Hong Min, Yongin-si, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
The backlight for a flat display device including a light source, a light guide plate and a surface hologram is provided. The light guide plate is installed at one side of the light source, and light from the light source travels in the light guide plate while being totally reflected. The surface hologram is formed on at least one surface of the light guide plate. The surface hologram has a pattern of a predetermined grating interval and a predetermined grating depth in order to diffract light at a predetermined angle toward the light guide plate.