Patent ID: 7499140

Claim:
An active matrix substrate comprising: a scanning line; a signal line; a switching device; a storage capacitor wiring; an interlayer insulation film; and a pixel electrode provided on an insulating substrate; wherein the pixel electrode is arranged in a matrix shape and provided with an electrode slit; an electrical connecting portion of the electrode slit is provided outside a light-blocking region formed in the active matrix substrate; the switching device is provided at an intersection of the scanning line and the signal line; the switching device includes a gate electrode connected to the scanning line, a source electrode connected to the signal line and a drain extracting electrode connected to the pixel electrode; the interlayer insulation film includes a plurality of contact holes; the contact holes are connected to a plurality of capacitance electrodes placed above the storage capacitor wiring with an insulating layer therebetween; the contact holes connect the drain extracting electrode of the switching device to the pixel electrode; and between the contact holes, the electrode slit is formed across the storage capacitor wiring; wherein the electrical connecting portion of the electrode slit exists on the drain extracting electrode.