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:
Mar. 27, 2007
Filed:
Feb. 17, 2005
Hun Joo Hahm, Sungnam, KR;
Hyung Suk Kim, Suwon, KR;
Jung Kyu Park, Gwanak-ku, KR;
Ho Sik Anh, Suwon, KR;
Young Sam Park, Songpa-ku, KR;
Bum Jin Kim, Boochun, KR;
Young June Jeong, Kyungki-do, KR;
Hun Joo Hahm, Sungnam, KR;
Hyung Suk Kim, Suwon, KR;
Jung Kyu Park, Gwanak-ku, KR;
Ho Sik Anh, Suwon, KR;
Young Sam Park, Songpa-ku, KR;
Bum Jin Kim, Boochun, KR;
Young June Jeong, Kyungki-do, KR;
Samsung Electro-Mechanics Co., Ltd., Kyungki-Do, KR;
Abstract
In a backlight apparatus for an LCD, a plurality of bar-shaped first LED light sources are arranged on the reflective plate to laterally emit light. A plurality of light shades are arranged above the first light sources. A transparent plate is placed above the light shades. Scattering patterns are formed in the bottom of the transparent plate in positions corresponding to the light shades. A bar-shaped second LED light source is arranged at a side of the transparent plate to emit light into the transparent plate. The light source arranged at the side of the transparent plate prevents the formation of dark areas as a problem in the prior art, thereby enhancing the entire uniformity of light. Then, the backlight apparatus can be maintained thin even when applied to a large-sized LCD.