| 20090079671 | INPUT/OUTPUT-INTEGRATED DISPLAY DEVICE AND PROTECTIVE GLASS PLATE USED THEREIN - The present invention herein provides an input/output-integrated display device which never causes, with ease, any contact between a protective glass plate and a part such as a display panel which is arranged in the device while facing the protective glass plate as well as a protective glass plate used in the display device. The input/output-integrated display device equipped with a means for inputting information through handwriting comprises a protective glass plate which is arranged as an outermost layer on the observation side of the device, while leaving a space between the protective glass plate and a part of the device facing the same. The protective glass plate is a chemically reinforced glass plate prepared by immersing, in a molten salt bath, a glass plate which is produced according to the floating technique and has a Young's modulus ranging from 71 to 74 GPa and a Poisson's ratio ranging from 0.22 to 0.24 to thus chemically reinforce the same; the protective glass plate has the side serving as the top face upon the production of the glass plate according to the floating technique and the bottom face side opposite to the top face side; the surface compression stress observed on the top face side ranges from 200 to 650 MPa; the protective glass plate is arranged in such a manner that the top face thereof faces the foregoing space; and the protective glass plate is deflected towards the bottom face side. | 03-26-2009 |
