Patent ID: 7071735
Filing Date: 2006-07-04
Classification: G09G,H03K

Abstract:
1. A level shifter for receiving an input signal alternately having a first-level voltage and a second-level voltage, and for generating a third-level voltage and a fourth-level voltage according to the first-level voltage and the second-level voltage, comprising: a first transistor coupled between a first power source and an output terminal; a second transistor coupled between the output terminal and a second power source, in which an inverted signal of the input signal is applied to a gate; a capacitor coupled between the first transistor and the gate of the second transistor; and a switch for applying a voltage corresponding to the first-level voltage to the gate of the first transistor by responding to the first-level voltage, and for blocking the gate of the first transistor from the input signal by responding to the second-level voltage.