| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical position detection device capable of detecting at least the two-dimensional coordinates of a target object, even if using a small number of light sources whose power is relatively small; and to provide a display device with a position detection function with the optical position detection device. <P>SOLUTION: In an optical position detection device 10, when the position of a target object Ob is detected by receiving the rays of light of detection reflected on the target object Ob in a detection region 10R, first to fourth linear light source bodies L1 to L4 extended along the side of the detection region 10R and first to fourth light receiving elements D1 to D4 using regions R11, R12, R21, and R22 obtained by dividing the detection region 10R as light reception target regions are used. Thus, as for the linear light source bodies, it is not necessary to form light intensity distribution in the whole detection region 10R. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
