Portable display device

The present invention relates to a portable display device. The display device of the present invention comprises a main unit comprising a first display unit, a sliding second display unit joined to the first display unit, whose action allows display of a separate screen or an extension of the scree...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WON-KYU RYU, JONG-KYU RYU, EUN-HEE RYU, SANG-KYU RYU
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LABELS OR NAME-PLATES PHYSICS SEALS SIGNS TELEPHONIC COMMUNICATION TRANSMISSION
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