Display device including pixel comprising first transistor second transistor and light-emitting element
First Claim
1. A display device including a pixel, the pixel comprising:
- a first transistor;
a second transistor;
a light-emitting element,a first wiring;
a second wiring; and
a third wiring,wherein one of a source and a drain of the first transistor is electrically connected to the first wiring,wherein a gate of the first transistor is electrically connected to the second wiring,wherein one of a source and a drain of the second transistor is electrically connected to a pixel electrode,wherein the other one of the source and the drain of the second transistor is electrically connected to the third wiring,wherein the first wiring comprises a first portion and a second portion,wherein the second wiring comprises a third portion and a fourth portion,wherein the third wiring comprises a fifth portion,wherein the first portion and the third portion are positioned on a first insulating surface, andwherein the second portion, the fourth portion, and the fifth portion are positioned on a second insulating surface.
1 Assignment
0 Petitions
Accused Products
Abstract
An active matrix display device having a pixel structure in which pixel electrodes, gate wirings and source wirings are suitably arranged in the pixel portions to realize a high numerical aperture without increasing the number of masks or the number of steps. The device comprises a gate electrode and a source wiring on an insulating surface, a first insulating layer on the gate electrode and on the source wiring, a semiconductor layer on the first insulating film, a second insulating layer on the semiconductor film, a gate wiring connected to the gate electrode on the second insulating layer, a connection electrode for connecting the source wiring and the semiconductor layer together, and a pixel electrode connected to the semiconductor layer.
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Citations
24 Claims
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1. A display device including a pixel, the pixel comprising:
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a first transistor; a second transistor; a light-emitting element, a first wiring; a second wiring; and a third wiring, wherein one of a source and a drain of the first transistor is electrically connected to the first wiring, wherein a gate of the first transistor is electrically connected to the second wiring, wherein one of a source and a drain of the second transistor is electrically connected to a pixel electrode, wherein the other one of the source and the drain of the second transistor is electrically connected to the third wiring, wherein the first wiring comprises a first portion and a second portion, wherein the second wiring comprises a third portion and a fourth portion, wherein the third wiring comprises a fifth portion, wherein the first portion and the third portion are positioned on a first insulating surface, and wherein the second portion, the fourth portion, and the fifth portion are positioned on a second insulating surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device including a pixel, the pixel comprising:
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a first transistor; a second transistor; a light-emitting element, a first wiring; a second wiring; and a third wiring, wherein one of a source and a drain of the first transistor is electrically connected to the first wiring, wherein a gate of the first transistor is electrically connected to the second wiring, wherein one of a source and a drain of the second transistor is electrically connected to a pixel electrode, wherein the other one of the source and the drain of the second transistor is electrically connected to the third wiring, wherein the first wiring comprises a first portion and a second portion, wherein the second wiring comprises a third portion and a fourth portion, wherein the third wiring comprises a fifth portion, wherein the second portion, the fourth portion, and the fifth portion are positioned on a second insulating surface. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A display device including a pixel, the pixel comprising:
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a first transistor; a second transistor; a light-emitting element, a first wiring; a second wiring; and a third wiring, wherein one of a source and a drain of the first transistor is electrically connected to the first wiring, wherein a gate of the first transistor is electrically connected to the second wiring, wherein one of a source and a drain of the second transistor is electrically connected to a pixel electrode, wherein the other one of the source and the drain of the second transistor is electrically connected to the third wiring, wherein the first wiring comprises a first portion and a second portion, wherein the second wiring comprises a third portion and a fourth portion, wherein the third wiring comprises a fifth portion, and wherein the fourth portion and the fifth portion are positioned on a second insulating surface. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A display device including a pixel, the pixel comprising:
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a first transistor; a second transistor; a capacitor; and a light-emitting element, a first wiring; a second wiring; and a third wiring, wherein one of a source and a drain of the first transistor is electrically connected to the first wiring, wherein a gate of the first transistor is electrically connected to the second wiring, wherein one of a source and a drain of the second transistor is electrically connected to a pixel electrode, wherein the other one of the source and the drain of the second transistor is electrically connected to the third wiring, wherein the gate of the second transistor is electrically connected to a first electrode of the capacitor, wherein the first wiring comprises a first portion and a second portion, wherein the second wiring comprises a third portion and a fourth portion, wherein the third wiring comprises a fifth portion, wherein the first portion, the third portion, the gate of the first transistor, the gate of the second transistor, and the first electrode of the capacitor are positioned on a first insulating surface, and wherein the second portion, the fourth portion, and the fifth portion are positioned on a second insulating surface. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification