| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a display device of portable electronic equipment with a sounding function which has less restriction of designing of the portable electronic equipment and less restrictions of size reduction. <P>SOLUTION: A liquid crystal display device which has a liquid crystal panel having liquid crystal charged in a liquid crystal cell part is fitted with a piezoelectric element. In detail, the sounding function is given by fitting the piezoelectric element to the liquid crystal panel, a touch panel arranged in the front of the liquid crystal panel, or the reflecting plate arranged on the reverse surface of the liquid crystal display panel to increase the number of pieces of information displayed on the display device and make an image large and easy to see, and so on, thus the display device of the portable electronic equipment having the sounding function which has less restriction of designing of the portable electronic equipment and less restrictions of size reduction is obtained. <P>COPYRIGHT: (C)2003,JPO</p> |
