Display device
First Claim
1. An active matrix display device, comprising:
- a pixel electrode layer which is formed of a transparent electrically conductive film;
a common electrode layer which is made of a light-blocking material;
a source wiring layer;
a gate wiring layer, said pixel electrode layer, said common electrode layer, said source wiring layer and said gate wiring layer being formed in a stated order from an incident light side; and
an organic resin layer disposed between said common electrode layer and said source wiring layer, a surface of said organic resin layer being flattened;
wherein a capacitor is formed between said pixel electrode and said common electrode.
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Accused Products
Abstract
In an active matrix liquid-crystal display device, a metal common electrode 22 that also serves as a black matrix is disposed to cover the peripheral portion of a pixel electrode 24 which is formed of a transparent electrically conductive film. The common electrode 22 functions as the black matrix that covers the peripheral portion of a pixel and is held to a given potential, so that a region where the pixel electrode 24 and the common electrode 22 are overlapped with each other functions as an auxiliary capacitor 25. The auxiliary capacitor is structured through an insulation layer 23. The common electrode 22 is formed on the insulation layer 21 having a flatten surface to make the auxiliary capacitor 25 larger. With this structure, even though the insulation layer 23 is thinned to about 1 μm, a pin hole, leakage, etc., between the common electrode and the pixel electrode can be prevented, to thereby obtain a larger auxiliary capacitor.
188 Citations
15 Claims
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1. An active matrix display device, comprising:
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a pixel electrode layer which is formed of a transparent electrically conductive film; a common electrode layer which is made of a light-blocking material; a source wiring layer; a gate wiring layer, said pixel electrode layer, said common electrode layer, said source wiring layer and said gate wiring layer being formed in a stated order from an incident light side; and an organic resin layer disposed between said common electrode layer and said source wiring layer, a surface of said organic resin layer being flattened; wherein a capacitor is formed between said pixel electrode and said common electrode. - View Dependent Claims (2, 3, 4, 5)
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6. An active matrix display device, comprising:
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a source wiring; a gate wiring, said source wiring and said gate wiring being disposed in the form of a lattice; at least one pixel electrode disposed in a region surrounded by one of said source wiring and said gate wiring; and a common electrode disposed between a layer of said pixel electrode and a layer of said source wiring and said gate wiring to cover said source wiring and said gate wiring, said common electrode comprising a material that blocks a visual light; wherein the peripheral portion of said pixel electrode is overlapped with said common electrode; and wherein said common electrode is connected to a wiring which is formed on a same plane as said source wiring through a film which is formed on a same plane as said pixel electrode. - View Dependent Claims (7, 8, 9, 10)
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11. An active matrix display device, comprising:
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a source wiring; a gate wiring, said source wiring and said gate wiring being disposed in the form of a lattice; at least one pixel electrode disposed in a region surrounded by one of said source wiring and said gate wiring; a common electrode which is overlapped with the peripheral portion of said pixel electrode and made of a material that blocks a visual light; and a film which is of the same layer as that of said pixel electrode and in contact with said common electrode and a wiring of the same layer as that of said source wiring. - View Dependent Claims (12, 13, 14, 15)
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Specification