US Patent 7947915 Keypad assembly
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Patent abstract
Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm.
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Patent Inventor Names
Joo-Hoon Lee0
Sun-Tae Jung0
Yu-Sheop Lee0
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Patent Citations Received
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US Patent 07947915 Keypad assembly US Patent 7947915 Keypad assembly
Infobox
Patent Number
07947915
Patent Number
7947915
Edits on 7 Dec, 2021
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US Patent 07947915 Keypad assembly
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Is a
Patent jurisdiction
Patent number
07947915
Date of patent
May 24, 2011
Patent application number
12041718
Date Filed
March 4, 2008
Patent primary examiner
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