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.

Date of Patent:
Nov. 08, 2011

Filed:

Mar. 02, 2011
Applicants:

Joo-hoon Lee, Gyeonggi-do, KR;

Gwan-hyung Kim, Seoul, KR;

Inventors:

Joo-Hoon Lee, Gyeonggi-do, KR;

Gwan-Hyung Kim, Seoul, KR;

Assignee:

Samsung Electronics Co., Ltd., Maetan-dong, Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed are a light guide member and a keypad assembly including the same. The light guide member includes a light guide plate for guiding light propagated inside, and at least one recess formed in a direction perpendicular to a direction of guidance of light coupled to the inside of the light guide plate so that light guided by the light guide plate is reflected to the light guide plate. The keypad assembly includes a keypad having at least one key button and an elastic sheet fixing the key button, a light guide member positioned beneath the keypad, the light guide member having a light guide plate for guiding light coupled to an inside and at least one recess for reflecting light guided by the light guide plate to the light guide plate, and a switch pad positioned beneath the light guide member so as to establish an electric contact when the key button is pressed.


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