Pixel and organic light emitting display device having the same
An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.
1. An organic light emitting display device comprising:
a first supply voltage line;
a second supply voltage line;
an organic light emitting diode;
a first transistor, a second transistor, and a third transistor electrically connected in series between the first supply voltage line and the second supply voltage line, wherein the first transistor includes a first portion of a first active pattern made of a first semiconductor material, the second transistor includes a second portion of the first active pattern, and the third transistor includes a third portion of the first active pattern;
a fourth transistor electrically connected between a data line and a first electrode of the second transistor, wherein the fourth transistor includes a fourth portion of the first active pattern;
a fifth transistor electrically connected between a gate electrode of the second transistor and a second electrode of the second transistor, wherein the fifth transistor includes a first portion of a second active pattern made of a second semiconductor material that is different from the first semiconductor material; and
a capacitor electrically connected to the gate electrode of the second transistor,
wherein the second active pattern is electrically connected to the gate electrode of the second transistor through a first connector, and
wherein the second active pattern is electrically connected to the first active patter through a second connector.
2. The organic light emitting display device of claim 1 , wherein the first semiconductor material comprises a polysilicon.
3. The organic light emitting display device of claim 2 , wherein the second semiconductor material comprises an oxide semiconductor.
4. The organic light emitting display device of claim 3 , wherein the first connector and the second connector are made of a same material.
5. The organic light emitting display device of claim 1 , further comprising;
a sixth transistor electrically connected between an anode of the organic light emitting diode and an initialization voltage line.
6. The organic light emitting display device of claim 5 , wherein the sixth transistor includes a second portion of the second active pattern.
7. The organic light emitting display device of claim 5 , further comprising;
a seventh transistor electrically connected between the gate electrode of the second transistor and the initialization voltage line.
8. The organic light emitting display device of claim 7 , wherein the seventh transistor includes a third portion of the second active pattern.
9. The organic light emitting display device of claim 1 , wherein the second portion of the first active pattern is curved under the gate electrode of the second transistor.
10. An organic light emitting display device comprising;
a first supply voltage line;
a second supply voltage line;
an organic light emitting, diode;
a first transistor, a second transistor, and a third transistor electrically connected in series between the first supply voltage line and the second supply voltage line, wherein the first transistor includes a first portion of a first active pattern made of a first semiconductor material, the second transistor includes a second portion of the first active pattern, and the third transistor includes a third portion of the first active pattern;
a capacitor electrically connected to the gate electrode of the second transistor; and
a fourth transistor that includes a portion of a second active pattern that is different from the first active pattern,
wherein the second active pattern is electrically connected to a gate electrode of the second transistor through a first connector, and
wherein the second active pattern is made of a second semiconductor material that is different from the first semiconductor material and is electrically connected to the first active pattern through a second connector.