MOBILE TERMINAL DEVICE

PROBLEM TO BE SOLVED: To provide a mobile terminal device in which a surface of a key of a numerical keypad in an operation panel is efficiently illuminated and the number of light emitting diodes (LED) can be reduced. SOLUTION: In a movable side case of a mobile telephone, two light-emitting elemen...

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Bibliographische Detailangaben
Hauptverfasser:	KAJIWARA YOSHIFUMI, SUGIMORI KENTA, YONEYAMA KAZUNOBU, ISHIOKA RIICHI, TAKITA HIROYUKI, MATSUSHIMA MANABU, KUBO HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a mobile terminal device in which a surface of a key of a numerical keypad in an operation panel is efficiently illuminated and the number of light emitting diodes (LED) can be reduced. SOLUTION: In a movable side case of a mobile telephone, two light-emitting elements 700 are arranged to one end side of an operation panel 115 in which a plurality of keys 111 of the numerical keypad are arranged and a light guide sheet member 400 which guides a light emitted by the light-emitting elements 700 toward the operation panel 115 to a position below the operation panel 115 and diffuses the light in a planar shape is included. COPYRIGHT: (C)2010,JPO&INPIT