Patent ID: 6798147
Filing Date: 2004-09-28
Classification: G09G

Abstract:
A driving circuit for driving a light-emitting device inside a display device, wherein the light-emitting device has a positive terminal and a negative terminal, the driving circuit comprising:a biasing device having a first terminal point and a second terminal point, wherein the first terminal point is connected to a terminal for receiving a data current and the second terminal point is connected to a ground; a switching transistor having a first drain terminal, a first gate terminal and a first source terminal, wherein the first drain terminal is connected to the first terminal point and the first gate terminal is connected to a scan line; a capacitor having a third terminal point and a fourth terminal point, wherein the third terminal point is connected to the first source terminal and the fourth terminal point is connected to the ground; a voltage coupler having an input terminal and an output terminal, wherein the input terminal is connected to the first source terminal and the third terminal point whereas the output terminal is connected to the light-emitting device.