Title:
OVERLAP KEYPAD
Document Type and Number:
WIPO Patent Application WO/2011/122735
Kind Code:
A1
Abstract:
The present invention relates to an overlap keypad, and particularly, to an overlap keypad capable of being changed to enable one keypad to represent a variety of text, numbers, etc. according to a user's needs. The overlap keypad of the present invention comprises: a first waveguide sheet having a first pattern printed on the undersurface thereof; a first light source for emitting light at the side of the first waveguide sheet; a first transmitting sheet disposed on the upper portion of the first waveguide sheet; a second waveguide sheet disposed on the upper portion of the first transmitting sheet, and having a second pattern printed on the undersurface thereof; a second light source for emitting light at the side of the second waveguide sheet; and a second transmitting sheet disposed on the upper portion of the second waveguide sheet.
Inventors:
LEE, Hyun Jin (101-918, Daewoo Officetel Gwonseon-dong, Gwonseon-g, Suwon-si Gyeonggi-do 441-390, 441-390, KR)
Application Number:
KR2010/004165
Publication Date:
October 06, 2011
Filing Date:
June 25, 2010
Export Citation:
Assignee:
YOUTH-TECH.CO.,LTD. (1496-3, Sa-dong Sangnok-gu, Ansan-city Kyunggi-do 426-170, 426-170, KR)
(주)유스테크 (경기도 안산시 상록구 사동 1496-3, 426-170 Kyunggi-do, 426-170, KR)
(주)유스테크 (경기도 안산시 상록구 사동 1496-3, 426-170 Kyunggi-do, 426-170, KR)
International Classes:
H01H13/704; H01H13/702
Attorney, Agent or Firm:
LEE, Jeong-Hyun (4F KIA CAR Bldg, 541-3 Gozan-dong, Danwoen-gu, Ansan-si, Gyeonggi-do 425-868, 425-868, KR)
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Claims:
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