Display device
First Claim
1. A display device comprising a pixel and a driver circuit, the driver circuit includes:
- a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor;
wherein one of a source and a drain of the first transistor is directly connected to a fourth wiring, and the other of the source and the drain of the first transistor is electrically connected to a third wiring;
wherein one of a source and a drain of the second transistor is electrically connected to a seventh wiring, the other of the source and the drain of the second transistor is electrically connected to the third wiring, and a gate of the second transistor is electrically connected to a fifth wiring;
wherein one of a source and a drain of the third transistor is electrically connected to a sixth wiring, the other of the source and the drain of the third transistor is electrically connected to a gate of the sixth transistor, and a gate of the third transistor is directly connected to the fourth wiring;
wherein one of a source and a drain of the fourth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the fourth transistor is electrically connected to the gate of the sixth transistor, and a gate of the fourth transistor is electrically connected to the fifth wiring;
wherein one of a source and a drain of the fifth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the fifth transistor is electrically connected to a gate of the first transistor, and a gate of the fifth transistor is electrically connected to a first wiring;
wherein one of a source and a drain of the sixth transistor is electrically connected to the seventh wiring, and the other of the source and the drain of the sixth transistor is electrically connected to the gate of the first transistor;
wherein one of a source and a drain of the seventh transistor is electrically connected to the seventh wiring, the other of the source and the drain of the seventh transistor is electrically connected to the gate of the first transistor, and a gate of the seventh transistor is electrically connected to a second wiring; and
wherein one of a source and a drain of the eighth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the eighth transistor is electrically connected to the gate of the sixth transistor, and a gate of the eighth transistor is electrically connected to the gate of the first transistor.
1 Assignment
0 Petitions
Accused Products
Abstract
To suppress fluctuation in the threshold voltage of a transistor, to reduce the number of connections of a display panel and a driver IC, to achieve reduction in power consumption of a display device, and to achieve increase in size and high definition of the display device. A gate electrode of a transistor which easily deteriorates is connected to a wiring to which a high potential is supplied through a first switching transistor and a wiring to which a low potential is supplied through a second switching transistor; a clock signal is input to a gate electrode of the first switching transistor; and an inverted clock signal is input to a gate electrode of the second switching transistor. Thus, the high potential and the low potential are alternately applied to the gate electrode of the transistor which easily deteriorates.
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Citations
24 Claims
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1. A display device comprising a pixel and a driver circuit, the driver circuit includes:
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a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor; wherein one of a source and a drain of the first transistor is directly connected to a fourth wiring, and the other of the source and the drain of the first transistor is electrically connected to a third wiring; wherein one of a source and a drain of the second transistor is electrically connected to a seventh wiring, the other of the source and the drain of the second transistor is electrically connected to the third wiring, and a gate of the second transistor is electrically connected to a fifth wiring; wherein one of a source and a drain of the third transistor is electrically connected to a sixth wiring, the other of the source and the drain of the third transistor is electrically connected to a gate of the sixth transistor, and a gate of the third transistor is directly connected to the fourth wiring; wherein one of a source and a drain of the fourth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the fourth transistor is electrically connected to the gate of the sixth transistor, and a gate of the fourth transistor is electrically connected to the fifth wiring; wherein one of a source and a drain of the fifth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the fifth transistor is electrically connected to a gate of the first transistor, and a gate of the fifth transistor is electrically connected to a first wiring; wherein one of a source and a drain of the sixth transistor is electrically connected to the seventh wiring, and the other of the source and the drain of the sixth transistor is electrically connected to the gate of the first transistor; wherein one of a source and a drain of the seventh transistor is electrically connected to the seventh wiring, the other of the source and the drain of the seventh transistor is electrically connected to the gate of the first transistor, and a gate of the seventh transistor is electrically connected to a second wiring; and wherein one of a source and a drain of the eighth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the eighth transistor is electrically connected to the gate of the sixth transistor, and a gate of the eighth transistor is electrically connected to the gate of the first transistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising a pixel, a first driver circuit, and a second driver circuit,
wherein the first driver circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, and an eighth transistor; -
wherein one of a source and a drain of the first transistor is directly connected to a fourth wiring, and the other of the source and the drain of the first transistor is electrically connected to a third wiring; wherein one of a source and a drain of the second transistor is electrically connected to a seventh wiring, the other of the source and the drain of the second transistor is electrically connected to the third wiring, and a gate of the second transistor is electrically connected to a fifth wiring; wherein one of a source and a drain of the third transistor is electrically connected to a sixth wiring, the other of the source and the drain of the third transistor is electrically connected to a gate of the sixth transistor, and a gate of the third transistor is directly connected to the fourth wiring; wherein one of a source and a drain of the fourth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the fourth transistor is electrically connected to the gate of the sixth transistor, and a gate of the fourth transistor is electrically connected to the fifth wiring; wherein one of a source and a drain of the fifth transistor is electrically connected to the sixth wiring, the other of the source and the drain of the fifth transistor is electrically connected to a gate of the first transistor, and a gate of the fifth transistor is electrically connected to a first wiring; wherein one of a source and a drain of the sixth transistor is electrically connected to the seventh wiring, and the other of the source and the drain of the sixth transistor is electrically connected to the gate of the first transistor; wherein one of a source and a drain of the seventh transistor is electrically connected to the seventh wiring, the other of the source and the drain of the seventh transistor is electrically connected to the gate of the first transistor, and a gate of the seventh transistor is electrically connected to a second wiring; wherein one of a source and a drain of the eighth transistor is electrically connected to the seventh wiring, the other of the source and the drain of the eighth transistor is electrically connected to the gate of the sixth transistor, and a gate of the eighth transistor is electrically connected to the gate of the first transistor; wherein the second driver circuit includes a ninth transistor, a tenth transistor, an eleventh transistor, a twelfth transistor, a thirteenth transistor, a fourteenth transistor, a fifteenth transistor, and a sixteenth transistor; wherein one of a source and a drain of the ninth transistor is electrically connected to an eleventh wiring, and the other of the source and the drain of the ninth transistor is electrically connected to a tenth wiring; wherein one of a source and a drain of the tenth transistor is electrically connected to a fourteenth wiring, the other of the source and the drain of the tenth transistor is electrically connected to the tenth wiring, and a gate of the tenth transistor is electrically connected to a twelfth wiring; wherein one of a source and a drain of the eleventh transistor is electrically connected to a thirteenth wiring, the other of the source and the drain of the eleventh transistor is electrically connected to a gate of the fourteenth transistor, and a gate of the eleventh transistor is electrically connected to the eleventh wiring; wherein one of a source and a drain of the twelfth transistor is electrically connected to the fourteenth wiring, the other of the source and the drain of the twelfth transistor is electrically connected to the gate of the fourteenth transistor, and a gate of the twelfth transistor is electrically connected to the twelfth wiring; wherein one of a source and a drain of the thirteenth transistor is electrically connected to the thirteenth wiring, the other of the source and the drain of the thirteenth transistor is electrically connected to a gate of the ninth transistor, and a gate of the thirteenth transistor is electrically connected to an eighth wiring; wherein one of a source and a drain of the fourteenth transistor is electrically connected to the fourteenth wiring, and the other of the source and the drain of the fourteenth transistor is electrically connected to the gate of the ninth transistor; wherein one of a source and a drain of the fifteenth transistor is electrically connected to the fourteenth wiring, the other of the source and the drain of the fifteenth transistor is electrically connected to the gate of the ninth transistor, and a gate of the fifteenth transistor is electrically connected to a ninth wiring; and wherein one of a source and a drain of the sixteenth transistor is electrically connected to the fourteenth wiring, the other of the source and the drain of the sixteenth transistor is electrically connected to the gate of the fourteenth transistor, and a gate of the sixteenth transistor is electrically connected to the gate of the ninth transistor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification