Patent ID: 9041300
Filing Date: 2015-05-26
Classification: G09G

Abstract:
1. A driving circuit for a pixel unit including: a light-emitting device with a first terminal connected to a first level; an OLED switching transistor with a drain connected to a second terminal of the light-emitting device; a first transistor with a drain connected to a source of the OLED switching transistor and a source connected to a second level; a storage capacitor with a first terminal connected to a gate of the first transistor, a first control node, and a third control node respectively and with a second terminal connected to the second level; a second transistor with a source connected to the second level and a gate connected to the third control node; and a switching unit, being connected to a data signal terminal for supplying a data signal current, a scan signal terminal for supplying a scan signal, the first control node, the third control node and a drain of the second transistor respectively, and further being connected to the source of the OLED switching transistor via a second control node, for controlling the data signal current to charge the storage capacitor.