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. 26, 2008
Filed:
Feb. 02, 2007
Joo-hoon Lee, Yongin-si, KR;
Byung-duck Cho, Seoul, KR;
Dong-hoon Jang, Suwon-si, KR;
Sun-tae Jung, Anyang-si, KR;
Joo-Hoon Lee, Yongin-si, KR;
Byung-Duck Cho, Seoul, KR;
Dong-Hoon Jang, Suwon-si, KR;
Sun-Tae Jung, Anyang-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Abstract
A keypad assembly for an electronic device is disclosed. The keypad assembly includes a light guide plate through which a light moves, a plurality of first key buttons on the top surface of the light guide plate, a plurality of reflecting patterns on the bottom surface of the light guide plate for reflecting the light moving through the light guide plate toward the first key buttons, protrusions under the reflecting patterns, a plurality of light emitting devices for supplying the light to the light guide plate, and a switch board including a plurality of dome switches and at least one first optical filtering layer whose color is changed into various colors by reacting or not reacting to the wavelengths of lights generated from the light emitting devices is included under each of the first key buttons.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile