Semiconductor device and manufacturing method of the same
First Claim
1. A semiconductor device comprising:
- a pixel, the pixel comprising;
a first wiring, a second wiring and a metal layer over an insulating surface;
a first insulating layer covering the first wiring, the second wiring and the metal layer;
a second insulating layer covering the first insulating layer,a first electrode over the second insulating layer, wherein the first electrode is in contact with the second wiring through the first insulating layer and the second insulating layer;
a second electrode formed over the second insulating layer; and
a third insulating layer over the first electrode, the first insulating layer, the first wiring, the second wiring, the metal layer and the second insulating layer,wherein the first wiring, the second wiring and the metal layer contain a same material,wherein the first electrode is provided between the metal layer and the first wiring,wherein the metal layer is provided between the first electrode and the second electrode, andwherein the metal layer is electrically insulated from other wirings.
1 Assignment
0 Petitions
Accused Products
Abstract
An insulating film provided between adjacent pixels is referred to as a bank, a partition, a barrier, an embankment or the like, and is provided above a source wiring or a drain wiring for a thin film transistor, or a power supply line. In particular, at an intersection portion of these wirings provided in different layers, a larger step is formed there than in other portions. Even in a case that the insulating film provided between adjacent pixels is formed by a coating method, there is a problem that thin portions are partially formed due to this step and the withstand pressure is reduced. In the present invention, a dummy material is arranged near the large step portion, particularly, around the intersection portion of wirings, so as to alleviate unevenness formed thereover. The upper wring and the lower wiring are arranged in a misaligned manner so as not to align the end portions.
37 Citations
25 Claims
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1. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring, a second wiring and a metal layer over an insulating surface; a first insulating layer covering the first wiring, the second wiring and the metal layer; a second insulating layer covering the first insulating layer, a first electrode over the second insulating layer, wherein the first electrode is in contact with the second wiring through the first insulating layer and the second insulating layer; a second electrode formed over the second insulating layer; and a third insulating layer over the first electrode, the first insulating layer, the first wiring, the second wiring, the metal layer and the second insulating layer, wherein the first wiring, the second wiring and the metal layer contain a same material, wherein the first electrode is provided between the metal layer and the first wiring, wherein the metal layer is provided between the first electrode and the second electrode, and wherein the metal layer is electrically insulated from other wirings. - View Dependent Claims (2, 6, 7, 12, 14)
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3. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring, a second wiring and a metal layer over an insulating surface; a first insulating layer covering the first wiring, the second wiring and the metal layer; a second insulating layer covering the first insulating layer; a first electrode over the second insulating layer, wherein the first electrode is in contact with the second wiring through the first insulating layer and the second insulating layer; a second electrode formed over the second insulating layer; a third insulating layer over the first electrode, the first insulating layer, the first wiring, the second wiring, the metal layer and the second insulating layer; and a light emitting element containing the second electrode over the second insulating layer, a light-emitting layer over the second electrode, and a third electrode over the light-emitting layer, wherein the metal layer is provided between the first electrode and the second electrode, and wherein the metal layer is electrically insulated from other wirings. - View Dependent Claims (4, 8, 9, 10, 11, 13)
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5. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring, a second wiring and a metal layer over an insulating surface; a first insulating layer covering the first wiring, the second wiring, and the metal layer; a second insulating layer covering the first insulating layer; a first electrode over the second insulating layer, wherein the first electrode is in contact with the second wiring through the first insulating layer and the second insulating layer; a third insulating layer over the first electrode the first insulating layer, the first wiring, the second wiring, the metal layer and the second insulating layer; a second electrode over the second insulating layer; a light-emitting layer over the second electrode; and a third electrode over the light-emitting layer, wherein the second wiring, the first wiring, and the metal layer contain a same material, wherein the first electrode is provided between the metal layer and the first wiring, and wherein the metal layer is electrically insulated from other wirings.
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15. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring over an insulating surface; a first insulating layer covering the first wiring; a metal layer over the first insulating layer; a second wiring over the first insulating layer; a first electrode over the first insulating layer; and a second insulating layer over the first wiring, the metal layer and the first electrode, wherein the first wiring and the second wiring have an intersection portion, wherein the metal layer is provided between the intersection portion and the first electrode, and wherein the metal layer is electrically insulated from other wirings. - View Dependent Claims (16, 17)
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18. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring over an insulating surface; a first insulating layer covering the first wiring;
a second wiring over the first insulating layer; anda plurality of metal layers over the first insulating layer overlapping the first wiring, wherein the first wiring and the second wiring have an intersection portion, wherein the plurality of metal layers is adjacent to the intersection portion, wherein each of the plurality of metal layers is adjacent to each other, and wherein each of the plurality of metal layers is electrically insulated from other wirings.
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19. A semiconductor device comprising:
a pixel, the pixel comprising; a first wiring over an insulating surface; a first insulating layer over the first wiring; a second wiring over the first insulating layer; a metal layer over the first insulating layer; a first electrode over the first insulating layer; and a second insulating layer over the second wiring, wherein the first wiring and the second wiring have an intersection portion, wherein the metal layer is provided between the intersection portion and the first electrode, and wherein the metal layer is electrically insulated from other wirings. - View Dependent Claims (20, 21, 22)
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23. A semiconductor device comprising:
a pixel, the pixel comprising; a gate wiring; a thin film transistor including a gate electrode electrically connected to the gate wiring; a pixel electrode operationally connected to the thin film transistor; a metal layer; and an insulating layer formed over at least the gate wiring, the metal layer and a peripheral portion of the pixel electrode, wherein the pixel electrode does not overlap with the metal layer, and wherein the metal layer is electrically floating. - View Dependent Claims (24, 25)
Specification