Electronic device
An electronic device is provided. The electronic device includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, a capacitor, and a current driving unit. The second transistor is coupled to the first transistor, and configured to receive a reference voltage. The capacitor is coupled to the first transistor, and includes a first electrode and a second electrode. The third transistor is coupled to the capacitor, and configured to receive a data signal. The fourth transistor is coupled to the capacitor and the first transistor. The fifth transistor is coupled to the first transistor, and configured to receive a first power source. The sixth transistor is coupled to the capacitor, and configured to receive a reset voltage. The seventh transistor is coupled to the first transistor and the capacitor.
1 . An electronic device, comprising:
a first transistor, comprising a first terminal, a second terminal, and a control terminal;
a second transistor, coupled to the first terminal, and configured to receive a reference voltage;
a capacitor, coupled to the control terminal, and comprising a first electrode and a second electrode;
a third transistor, coupled to the first electrode, and configured to receive a data signal;
a fourth transistor, coupled to the second electrode and the second terminal;
a fifth transistor, coupled to the first terminal and a first power source;
a sixth transistor, coupled to the second electrode, and configured to receive a reset voltage; and
a seventh transistor, coupled to the first terminal and the first electrode; and
a current driving unit, coupled to the second terminal and a second power source,
wherein during a reset period, a first signal is written into the first electrode, and the reset voltage is written into the second electrode,
wherein during a data writing period, the data voltage is written into the first electrode, and the reference voltage is written into the second electrode,
wherein during a light emitting period, the first terminal is coupled to the first electrode, and a current flows from the first power source through the current driving unit to the second power source,
wherein a voltage value of the first signal is higher than or equal to a maximum voltage value of the data signal.
2 . The electronic device according to claim 1 , further comprising:
a ninth transistor, coupled to the second terminal and the current driving unit.
3 . The electronic device according to claim 2 , wherein the ninth transistor is further coupled to another emission signal line to receive another emission signal.
4 . The electronic device according to claim 3 , wherein the emission signal and the another emission signal have a high voltage level during the data writing period.
5 . The electronic device according to claim 3 , wherein the ninth transistor is further coupled to the another emission signal line of a previous row pixel to receive the another emission signal.
6 . The electronic device according to claim 2 , wherein the ninth transistor is further coupled to an emission signal line to receive an emission signal.
7 . The electronic device according to claim 1 , further comprising:
a plurality of pixel circuits, each of the plurality of pixel circuits comprises the first transistor, the second transistor, the third transistor, the fourth transistor, the sixth transistor, and the seventh transistor, wherein the fifth transistor is coupled to the plurality of pixel circuits.
8 . The electronic device according to claim 7 , wherein the fifth transistor is coupled to one row of the plurality of pixel circuits.
9 . The electronic device according to claim 7 , wherein the fifth transistor is coupled to partial rows of the plurality of pixel circuits.
10 . The electronic device according to claim 1 , further comprising:
a plurality of pixel circuits, each of the plurality of pixel circuits comprises the first transistor, the third transistor, the fourth transistor, the fifth transistor, the sixth transistor, and the seventh transistor, wherein the second transistor is coupled to the plurality of pixel circuits.
11 . The electronic device according to claim 10 , wherein the second transistor is coupled to one row of the plurality of pixel circuits.
12 . The electronic device according to claim 1 , wherein a first terminal of the fifth transistor is coupled to the first power source, and a second terminal of the fifth transistor is coupled to first terminals of the seventh transistor and the first transistor.
13 . The electronic device according to claim 1 , further comprising:
an eighth transistor, coupled to the first electrode, and configured to receive another reset voltage, wherein the another reset voltage is equal to the voltage of the first signal.
14 . The electronic device according to claim 1 , further comprising:
an eighth transistor, coupled to an emission signal line, and configured to receive an emission signal, wherein the high voltage level of the emission signal is equal to the voltage of the first signal.
15 . The electronic device according to claim 1 , further comprising:
a plurality of pixel circuits, each of the plurality of pixel circuits comprises the first transistor, the third transistor, the fourth transistor, the sixth transistor, and the seventh transistor, wherein the second transistor and the fifth transistor are coupled to the plurality of pixel circuits.
16 . The electronic device according to claim 1 , wherein the first transistor, second transistor, the third transistor, the fourth transistor, the fifth transistor, the sixth transistor, and the seventh transistor are p-type transistors.
17 . The electronic device according to claim 1 , further comprising:
an eighth transistor, coupled to the first electrode, wherein the sixth transistor and the eighth transistor are coupled to a reset signal line to receive a reset signal.
18 . The electronic device according to claim 1 , further comprising:
an eighth transistor, coupled to the first electrode, wherein the sixth transistor and the eighth transistor are coupled to another scan signal line of a previous row pixel to receive another scan signal from.
19 . The electronic device according to claim 1 , wherein a first terminal of the sixth transistor is coupled to a control terminal of the sixth transistor.
20 . The electronic device according to claim 1 , wherein the electronic device is a display device.