Keypad assembly using optical shutter and light guide panel and portable terminal having the same

Keypad assembly using optical shutter and light guide panel and portable terminal having the same

A keypad assembly includes an optical shutter configured to shield or transmit light according to a voltage applied thereto; a light guide panel configured to guide an internal light generated inside of the keypad assembly and coupled to the interior of the light guide panel; and a symbol pattern la...

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Hauptverfasser: Jung, Sun-Tae, Park, Sung-Soo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator Jung, Sun-Tae
Park, Sung-Soo
description A keypad assembly includes an optical shutter configured to shield or transmit light according to a voltage applied thereto; a light guide panel configured to guide an internal light generated inside of the keypad assembly and coupled to the interior of the light guide panel; and a symbol pattern layer including at least one symbol pattern illuminated by both the internal light irradiated from the light guide panel and an external light from outside of the keypad assembly that has passed through the optical shutter.
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a light guide panel configured to guide an internal light generated inside of the keypad assembly and coupled to the interior of the light guide panel; and a symbol pattern layer including at least one symbol pattern illuminated by both the internal light irradiated from the light guide panel and an external light from outside of the keypad assembly that has passed through the optical shutter.</abstract><oa>free_for_read</oa></addata></record>
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language eng ; fre ; ger
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Keypad assembly using optical shutter and light guide panel and portable terminal having the same
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