Liquid crystal display device having sound output function and the like and an electronic device using the same

A liquid crystal display device having a sound output function. A sound output function can be added to a liquid crystal device having a light source while suppressing increase of the external size. The liquid crystal display device includes a liquid crystal layer sandwiched between a first substrat...

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Bibliographische Detailangaben
1. Verfasser:	MIYATA, KAZUHIKO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING DEAF-AID SETS DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY FREQUENCY-CHANGING LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS PUBLIC ADDRESS SYSTEMS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	A liquid crystal display device having a sound output function. A sound output function can be added to a liquid crystal device having a light source while suppressing increase of the external size. The liquid crystal display device includes a liquid crystal layer sandwiched between a first substrate (11) and a second substrate (12) which oppose to each other, an FPC (16) connected to a brim portion of the second substrate (12), a light guide plate (20), and an LED (30). An excitation source (30) is arranged at a portion corresponding to the back side of the FPC connection portion on the second substrate (12). The excitation source (30) deflects and vibrates the second substrate (12) of the liquid crystal display panel according to a sound signal from outside. That is, the second substrate (12) is used as a vibration plate for output of a sound. The present invention can preferably be used for a liquid crystal module especially used in mobile devices such as a mobile telephone and a PDA.