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US 2001/0019375 A1Published application
Liquid crystal display device and fabricating method thereof
OwnerOh Nam Kwon, Kwang Jo Hwanginventors
Life of this patent
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Abstract
A liquid crystal display device includes a substrate, a gate electrode on the substrate, an insulating layer on the gate electrode, a semiconductor layer on the insulating layer, an ohmic contact layer on the semiconductor layer, source and drain electrodes on the ohmic contact layer, a protective layer on the source and drain electrodes, the protective layer having a hole exposing a portion of one of the source and drain electrodes, a conductive electrode on the protective layer and electrically contacting the one of the source and drain electrodes, and a contact layer between the one of the source and drain electrodes and the conductive electrode.
Claims26
A liquid crystal display device comprising:
- a substrate;
- a first conductive layer on the substrate;
- a first insulating layer on the first conductive layer;
- a second conductive layer on the first insulating layer;
- a third conductive layer on the second conductive layer;
- a second insulating layer on the third conductive layer, the second insulating layer having a hole exposing a portion of the third conductive layer;
- a fourth conductive layer on the second insulating layer and electrically contacting the third conductive layer;
- and
- a fifth conductive layer between the third conductive layer and the fourth conductive layer.
6 more elements
The liquid crystal display device comprising:
- a substrate having first and second regions;
- a thin film transistor on the first region of the substrate;
- a pad portion on the second region of the substrate, the pad portion including:
- a first conductive layer on the substrate;
- a first insulating layer on the first conductive layer;
- a second insulating layer on the first insulating layer, the second insulating layer having a hole exposing a portion the first conductive layer;
- a second conductive layer on the portion of the first conductive layer and contacting the first conductive layer;
- and
- a third conductive layer on the second insulating layer and contacting the second conductive layer through the hole in the second insulating layer.
6 more elements
A liquid crystal display device comprising:
- a substrate having first and second regions;
- a switching device on the first region of the substrate, the switching device including:
- a first conductive layer on the substrate;
- a first insulating layer on the first conductive layer;
- a second conductive layer on the first insulating layer;
- a third conductive layer on the second conductive layer;
- a second insulating layer on the third conductive layer, the second insulating layer having a first hole exposing a portion of the third conductive layer;
- a fourth conductive layer on the second insulating layer and electrically contacting the third conductive layer;
- and
- a fifth conductive layer between the third conductive layer and the fourth conductive layer;
- and
- a pad portion on the second region of the substrate, the pad portion including:
- the first conductive layer on the substrate;
- the first insulating layer on the first conductive layer;
- the second insulating layer on the first insulating layer, the second insulating layer having a second hole exposing a portion the first conductive layer;
- the fifth conductive layer on the portion of the first conductive layer and contacting the first conductive layer;
- and
- the fourth conductive layer on the second insulating layer and contacting the fifth conductive layer through the second hole in the second insulating layer.
15 more elements
A liquid crystal display device comprising:
- a substrate;
- a gate electrode on the substrate;
- an insulating layer on the gate electrode;
- a semiconductor layer on the insulating layer;
- an ohmic contact layer on the semiconductor layer;
- source and drain electrodes on the ohmic contact layer;
- a protective layer on the source and drain electrodes, the protective layer having a hole exposing a portion of one of the source and drain electrodes;
- a conductive electrode on the protective layer and electrically contacting the one of the source and drain electrodes;
- and
- a contact layer between the one of the source and drain electrodes and the conductive electrode.
7 more elements
A method of fabricating a liquid crystal display device comprising:
- forming a switching device on a first region of a substrate, the switching device including:
- a first conductive layer on the substrate;
- a first insulating layer on the first conductive layer;
- a second conductive layer on the first insulating layer;
- a third conductive layer on the second conductive layer;
- a second insulating layer on the third conductive layer, the second insulating layer having a first hole exposing a portion of the third conductive layer;
- a fourth conductive layer on the second insulating layer and electrically contacting the third conductive layer;
- and
- a fifth conductive layer between the third conductive layer and the fourth conductive layer;
- and
- forming a pad portion on a second region of the substrate, the pad portion including:
- the first conductive layer on the substrate;
- the first insulating layer on the first conductive layer;
- the second insulating layer on the first insulating layer, the second insulating layer having a second hole exposing a portion the first conductive layer;
- the fifth conductive layer on the portion of the first conductive layer and contacting the first conductive layer;
- and
- the fourth conductive layer on the second insulating layer and contacting the fifth conductive layer through the second hole in the second insulating layer.
14 more elements
A method of forming a liquid crystal display device comprising:
- forming a gate electrode on a substrate;
- forming an insulating layer on the gate electrode;
- forming a semiconductor layer on the insulating layer;
- forming an ohmic contact layer on the semiconductor layer;
- forming source and drain electrodes on the ohmic contact layer;
- forming a protective layer on the source and drain electrodes, the protective layer having a hole exposing a portion of one of the source and drain electrodes;
- forming a conductive electrode on the protective layer and electrically contacting the one of the source and drain electrodes;
- and
- forming a contact layer between the one of the source and drain electrodes and the conductive electrode.
6 more elements
Dependencies are inferred from the claim text.