Patent ID: 8189733

Claim:
An electronic apparatus having a display device, the display device comprising: a shift register having a level shifter, the level shifter comprising: a capacitor comprising a first electrode and a second electrode; a first inverter including an input portion connected to the first electrode of the capacitor; a first transistor comprising a gate electrode, a source electrode and a drain electrode; a second transistor comprising a gate electrode, a source electrode and a drain electrode; a third transistor comprising a gate electrode, a source electrode and a drain electrode; a first switch connected to the second electrode of the capacitor; a second switch connected to the second electrode of the capacitor; and a third switch connected to the input portion and an output portion of the first inverter, wherein the gate electrode of the second transistor and the gate electrode of the third transistor are connected to the output portion of the first inverter, wherein one of the source electrode and the drain electrode of the first transistor is connected to a first power supply, wherein the other of the source electrode and the drain electrode of the first transistor is connected to one of the source electrode and the drain electrode of the second transistor, wherein the other of the source electrode and the drain electrode of the second transistor is connected to one of the source electrode and the drain electrode of the third transistor, and wherein the other of the source electrode and the drain electrode of the third transistor is connected to a second power supply.