Driving circuit of active-matrix organic light-emitting diode with hybrid transistors
A driving circuit includes a current drive unit and a reset compensation and light emitting control circuit. The current drive unit includes a first transistor and a second transistor. The first transistor and the second transistor are connected in series, wherein the first transistor and the second transistor include a silicon semiconductor layer. The reset compensation and light emitting control circuit is coupled to the current drive unit. The reset compensation and light emitting control circuit includes a third transistor connected to a control terminal of the first transistor, wherein the third transistor is an oxide semiconductor transistor.
1. A driving circuit comprising:
a first transistor having a first terminal, a second terminal and a control terminal;
a second transistor having a first terminal connected to the second terminal of the first transistor and a second terminal connected to an organic light-emitting diode;
a third transistor having a first terminal connected to the control terminal of the first transistor; and
a fourth transistor having a first terminal connected to the first terminal of the first transistor;
wherein the first transistor, the second transistor and the fourth transistor are low temperature poly-silicon transistors, and the third transistor is an oxide semiconductor transistor.
2. The driving circuit as claimed in claim 1 , wherein the fourth transistor has a second terminal connected to a high level voltage.
3. The driving circuit as claimed in claim 1 , wherein the third transistor has a second terminal connected to one of the first terminal and the second terminal of the first transistor.
4. The driving circuit as claimed in claim 3 , wherein the driving circuit comprises a fifth transistor having a first terminal connected to a data line and a second terminal connected to the other of the first terminal and the second terminal of the first transistor.
5. The driving circuit as claimed in claim 1 , wherein the driving circuit comprises a first capacitor having one terminal connected to the control terminal of the first transistor and the other terminal connected to a high level voltage.
6. The driving circuit as claimed in claim 1 , wherein the fourth transistor, the first transistor and the second transistor are connected in series.
7. The driving circuit as claimed in claim 1 , wherein the driving circuit comprises a sixth transistor having a first terminal connected to the control terminal of the first transistor and a second terminal connected to a voltage.