Patent ID: 7602364

Claim:
An image sticking elimination circuit for an abnormal power-off of a display unit, said image sticking elimination circuit being coupled to a gate drive circuit and a voltage converter, said image sticking elimination circuit comprising: a charge storage device having a first terminal and a second terminal, said first terminal of said charge storage device being coupled to a first voltage terminal of said voltage converter, said second terminal of said charge storage device being coupled to a ground; and a diode having a first terminal and a second terminal, said first terminal of said diode being coupled to said first voltage terminal of said voltage converter, said second terminal of said diode being coupled to said first terminal of said charge storage device; an isolation device having a first terminal, a second terminal, and a third terminal, said first terminal of said isolation device being coupled to said first terminal of said charge storage device, said second terminal of said isolation device being coupled to and between said first voltage terminal of said voltage converter and said first terminal of said diode, said third terminal of said isolation device being coupled to a second voltage terminal of said gate drive circuit, said isolation device being turned on when said abnormal power-off of a display occurs; wherein said charge storage device releases charges stored therein when said isolation device is turned on.