| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device, having a built-in touch screen function using a photoconductor, which has a photoconductive substance vapor-deposited between an insulating substrate and a light shield portion provided to a color filter substrate of a liquid crystal panel, and can effectively search for a touch position by variation in current or voltage due to change in characteristics of the photoconductor in response to light supplied from outside. <P>SOLUTION: The liquid crystal display device includes: first and second substrates; and a liquid crystal layer filled between the first and second substrates. The first substrate includes: a touch sensing layer formed under a substrate and sensing a position by variation in current or voltage due to change in characteristics of the photoconductor in response to light supplied from outside; a light-shielding layer formed under the touch sensing layer and preventing leakage of light; and an RGB color filter layer causing coloring operation with the light shield layer. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
