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:
Apr. 07, 2009
Filed:
Sep. 24, 2007
Hyung Suk Kim, Kyungki-Do, KR;
Jung Kyu Park, Seoul, KR;
Ho Sik Ahn, Kyungki-Do, KR;
Young June Jeong, Kyungki-Do, KR;
Young Sam Park, Seoul, KR;
Hun Joo Hahm, Kyungki-Do, KR;
Bum Jin Kim, Kyungki-Do, KR;
Hyung Suk Kim, Kyungki-Do, KR;
Jung Kyu Park, Seoul, KR;
Ho Sik Ahn, Kyungki-Do, KR;
Young June Jeong, Kyungki-Do, KR;
Young Sam Park, Seoul, KR;
Hun Joo Hahm, Kyungki-Do, KR;
Bum Jin Kim, Kyungki-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-Kyungki-Do, KR;
Abstract
A direct-illumination backlight apparatus using LEDs includes a flat reflective plate, an LED light source, a transparent plate, a scattering pattern, and a light guide. The light guide serves to introduce a partial light from an LED light source at such an angle that the partial light is trapped inside the transparent plate, and the scattering pattern serves to scatter the trapped light beam at a position directly above the LED light source so that the scattered light beam escapes out of the transparent plate toward an LCD panel.