Display device and electronic equipment
A display device includes a pixel array section, the pixel array section having pixels arranged in a matrix form, at least one of the pixels including an electro-optical element, a write transistor, a capacitor, a drive transistor, and a switching transistor. A write scan line is disposed for each pixel row of the pixel array section and adapted to convey a write signal to be applied to a gate electrode of the write transistor. The wiring structure of the write scan line does not cross a wiring pattern connected to a gate electrode of the drive transistor.
1. A display device comprising:
a plurality of pixels, at least one of the plurality of pixels including:
an electro-optical element;
a drive transistor configured to drive the electro-optical element;
a sampling transistor having a control terminal connected to a sampling scan line;
a first switching transistor having a control terminal connected to a first scan line;
a second switching transistor having a control terminal connected to a second scan line;
a third switching transistor having a control terminal connected to a third scan line; and
a capacitor,
wherein a first potential line is connected to a control terminal of the drive transistor via a first contact portion, via a channel layer of the first switching transistor, via a second contact portion, via a first wiring, and via a third contact portion, in order,
wherein a data line is connected to the control terminal of the drive transistor via a fourth contact portion, via a channel layer of the sampling transistor, via the second contact portion, via the first wiring, and the third contact portion, in order,
wherein a second potential line is connected to the electro-optical element via the second switching transistor and the drive transistor,
wherein a third potential line is connected to an anode of the electro-optical element via the third switching transistor,
wherein the first wiring, the sampling scan line, and the first scan line are arranged on a first side of the capacitor, and
wherein the second scan line and the third scan line are arranged on a second side opposite to the first side of the capacitor.
2. The display device according to claim 1 , wherein the second scan line does not cross the first wiring.
3. The display device according to claim 2 , wherein the sampling scan line does not cross the first wiring.
4. The display device according to claim 2 , wherein the first contact portion is connected between the first potential line and the channel layer of the first switching transistor, the second contact portion is connected between the channel layer of the first switching transistor and the first wiring, and the third contact portion is connected between the first wiring and the control terminal of the drive transistor.
5. The display device according to claim 4 , wherein the control terminal of the drive transistor is disposed on a first layer, the channel layer of the drive transistor is disposed on a second layer, and the f the first wiring are disposed on a third layer.
6. The display device according to claim 5 ,
wherein the first wiring are made of Aluminum,
wherein the control terminal of the drive transistor is made of Molybdenum, and
wherein the channel layer of the drive transistor is made of polysilicon.
7. The display device according to claim 2 , wherein the capacitor has a first terminal and a second terminal, the first terminal is directly connected between the third contact portion and the control terminal of the drive transistor.
8. The display device according to claim 2 , wherein the first switching transistor is configured to supply a first predetermined potential from the first potential line to the control terminal of the drive transistor.
9. The display device according to claim 8 , wherein the second switching transistor is connected between the second potential line and the drive transistor to control a light emission period of the electro-optical element.
10. The display device according to claim 2 , wherein the first switching transistor is connected between the first potential line and the control terminal of the drive transistor, the second switching transistor is connected between the second potential line and a current terminal of the drive transistor, and the drive transistor is connected between a current terminal of the second switching transistor and the anode electrode of the electro-optical element.
11. A display device comprising:
a plurality of pixels, at least one of the plurality of pixels including:
an electro-optical element;
a drive transistor configured to drive the electro-optical element;
a sampling transistor having a control terminal connected to a sampling scan line;
a first switching transistor having a control terminal connected to a first scan line;
a second switching transistor having a control terminal connected to a second scan line; and
a third switching transistor having a control terminal connected to a third scan line,
wherein a first potential line is connected to a control terminal of the drive transistor via a first contact portion, via a channel layer of the first switching transistor, via a second contact portion, via a first wiring, and via a third contact portion, in order,
wherein a data line is connected to the control terminal of the drive transistor via a fourth contact portion, via a channel layer of the sampling transistor, via the second contact portion, via the first wiring, and the third contact portion, in order,
wherein a second potential line is connected to the electro-optical element via the second switching transistor and the drive transistor,
wherein a third potential line is connected to an anode of the electro-optical element via the third switching transistor,
wherein the sampling scan line and the first scan line are arranged on a first side of the control terminal of the drive transistor, and
wherein the second scan line and the third scan line are arranged on a second side opposite to the first side of the control terminal of the drive transistor.
12. The display device according to claim 11 , wherein the second scan line does not cross the first wiring.
13. The display device according to claim 12 , wherein the sampling scan line does not cross the first wiring.
14. The display device according to claim 12 , wherein the first contact portion is connected between the first potential line and the channel layer of the first switching transistor, the second contact portion is connected between the channel layer of the first switching transistor and the first wiring, and the third contact portion is connected between the first wiring and the control terminal of the drive transistor.
15. The display device according to claim 14 , wherein the control terminal of the drive transistor is disposed on a first layer, the channel layer of the drive transistor is disposed on a second layer, and the f the first wiring are disposed on a third layer.
16. The display device according to claim 15 ,
wherein the first wiring are made of Aluminum,
wherein the control terminal of the drive transistor is made of Molybdenum, and
wherein the channel layer of the drive transistor is made of polysilicon.
17. The display device according to claim 12 , further comprising a capacitor,
wherein the capacitor has a first terminal and a second terminal, the first terminal is directly connected between the third contact portion and the control terminal of the drive transistor.
18. The display device according to claim 12 , wherein the first switching transistor is configured to supply a first predetermined potential from the first potential line to the control terminal of the drive transistor.
19. The display device according to claim 18 , wherein the second switching transistor is connected between the second potential line and the drive transistor to control a light emission period of the electro-optical element.
20. The display device according to claim 12 , wherein the first switching transistor is connected between the first potential line and the control terminal of the drive transistor, the second switching transistor is connected between the second potential line and a current terminal of the drive transistor, and the drive transistor is connected between a current terminal of the second switching transistor and the anode electrode of the electro-optical element.