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:
Jun. 15, 2010
Filed:
Feb. 20, 2007
Deuk Ii Park, Suwon-si, KR;
Choong Yop Rhew, Suwon-si, KR;
Ki Yong Balk, Yongin-si, KR;
Young Jin Hyun, Hwaseong-si, KR;
Jun Kyu Lee, Suwon-si, KR;
Hyun Jung Cho, Cheongju-si, KR;
Kyu Jin Choi, Busan, KR;
Deuk II Park, Suwon-si, KR;
Choong Yop Rhew, Suwon-si, KR;
Ki Yong Balk, Yongin-si, KR;
Young Jin Hyun, Hwaseong-si, KR;
Jun Kyu Lee, Suwon-si, KR;
Hyun Jung Cho, Cheongju-si, KR;
Kyu Jin Choi, Busan, KR;
LS Tech Co., Ltd., Pyeongtaek, KR;
Abstract
Provided is a back light unit. The back light unit includes a light guide plate having a light guide pattern part; at least one light emitting unit provided at a sidewall of the light guide plate, and irradiating light to the light guide plate; a keypad positioned over the light guide plate, and comprising a resin layer, a base resin layer, a character opening part having a character shape, a key assembly provided at one side, and a key adherence film provided on an upper surface of the base resin layer; and a printed circuit board comprising a metal dome switch positioned under a lower surface of the light guide plate.