| 摘要 |
<p>The present invention solves problems as follows: a problem that, since light for displaying enters into a semiconductor substrate, carrier induced by light occurs in the semiconductor substrate, potential of the substrate fluctuates, and hence display characteristics become worse; a problem that, in the semiconductor substrate, voltages are applied to the peripheral driving circuits so as to operate the peripheral driving circuits formed in a single-crystal area, which makes display characteristics worse by the voltages being conducted to the display area through the substrate; and a problem that, in case potentials of adjacent pixels greatly differ, the difference locally changes. For this purpose, in a display unit including an active matrix substrate having an image display portion being provided with a plurality of switches and a driving circuit for supplying driving signals to the switches around the image display portion, an opposing substrate opposing the active matrix substrate and having a transparent electrode, and a liquid crystal material between both of the active matrix substrate and the opposing substrate, heavily doped impurity regions having impurity density heavier than that of the semiconductor substrate are formed in the image display portion, and the heavily doped impurity regions are connected to a fixed potential around the image display portion. <IMAGE></p> |
