Patent ID: 7586328

Claim:
A level shifter, comprising: a first switch, controlled by an input signal and coupled to a first voltage; a second switch, coupled to the first switch, and controlled by a control signal; an energy storing device, having a first terminal and a second terminal, the first terminal for receiving a shift register signal, the second terminal coupled to a first node located between the first switch and the second switch; a loading device, coupled to the second terminal of the energy storing device; a third switch, coupled to the loading device, and controlled by a shift register anti-phase signal, wherein the shift register anti-phase signal has a phase inverse to the shift register signal; a diode, having a positive terminal and a negative terminal, the negative terminal coupled to a second node between the loading device and the third switch; a forth switch, coupled to the positive terminal of the diode and controlled by the shift register anti-phase signal; a transistor, having a gate, a first source/drain, and a second source/drain, the gate coupled to the positive terminal of the diode, the first source/drain for outputting an output signal, the second source/drain coupled to a second voltage; and a fifth switch, coupled to the first source/drain of the transistor and controlled by the shift register anti-phase signal.