Electrooptical device and method of fabricating the same
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei Yamazaki, Jun Koyama, Takeshi Fukunaga
Life of this patent
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Abstract
There is disclosed an electrooptical device capable of achieving a large area display by making full use of the size of the substrate. An active matrix substrate acts as a driver portion for the reflection-type electrooptical device. A pixel matrix circuit and logic circuitry are formed on the active matrix substrate. At this time, the logic circuitry is disposed, by making use of a dead space in the pixel matrix circuit. The area occupied by the pixel matrix circuit, or image display region, can be enlarged without being limited by the area occupied by the logic circuitry.
Claims37
An active matrix device comprising:
- a substrate having an insulating surface;
- a pixel matrix formed over said substrate, said pixel matrix comprising plural pixels and each of said pixels comprising at least a switching thin film transistor and a pixel electrode connected with said switching thin film transistor;
- and
- a control circuit formed over said substrate,
- wherein at least a part of said control circuit is covered with said pixel electrode.
An active matrix device comprising:
- a first substrate having an insulating surface;
- a second substrate opposed to said first substrate;
- a pixel matrix formed over a region of said first substrate, said pixel matrix comprising plural pixels and each of said pixels comprising at least a switching thin film transistor and a pixel electrode connected with said switching thin film transistor;
- a control circuit formed over said substrate;
- and
- a liquid crystal material layer held between said first substrate and said second substrate,
- wherein at least a part of said control circuit is covered with said pixel electrode.
A method of fabricating an active matrix device comprising the steps of:
- forming a pixel matrix over a region of a substrate having an insulating surface;
- and
- forming a control circuit over at least a part of said region of said substrate,
- wherein said pixel matrix comprises plural of pixels and each of said pixels comprising at least a switching thin film transistor and a pixel electrode connected with said switching thin film transistor, and
- wherein at least a part of said control circuit is covered with said pixel electrode.
A method of fabricating an active matrix device, comprising the steps of:
- preparing a first substrate having an insulating surface and a second substrate opposed to said first substrate;
- forming a pixel matrix over a region of said first substrate;
- forming a control circuit over at least a part of said region of said first substrate;
- and
- holding a liquid crystal material layer between said first substrate and said second substrate,
- wherein said pixel matrix comprises plural of pixels and each of said pixels comprising at least a switching thin film transistor and a pixel electrode connected with said switching thin film transistor, and
- wherein at least a part of said control circuit is covered with said pixel electrode.
An active matrix device comprising:
- a substrate selected from a glass substrate and a quartz substrate;
- a pixel matrix formed over a region of said substrate, said pixel matrix comprising plural of pixels and each of said pixels comprising at least a switching thin film transistor and a pixel electrode connected with said switching thin film transistor;
- and
- a control circuit formed over said substrate,
- wherein at least a part of said control circuit is covered with said pixel electrode.
An active matrix device having a plural of pixels formed over a substrate comprising:
- a switching thin film transistor connected to a pixel electrode;
- and
- a control circuit having information-processing for driving said active matrix device,
- wherein at least part of said control circuit is covered with said pixel electrode.
An active matrix device having a plural of pixels formed over a substrate comprising:
- a switching thin film transistor connected to a pixel electrode;
- and
- a control circuit having an information-processing circuit for driving said active matrix device;
- wherein at least a part of said control circuit is covered with said pixel electrode,
- wherein said control circuit is selected from the group consisting of a processor circuit, a memory circuit, a A/D or D/A converter circuit, a correcting circuit and a pulse-generating circuit.
A camera having a display unit, said display unit
- a plural of pixels formed over a substrate;
- wherein each of said pixels comprises a switching thin film transistor connected to a pixel electrode, and a control circuit,
- wherein at least a part of said control circuit is covered with said pixel electrode, and
- wherein said control circuit is selected from the group consisting of a processor circuit, a memory circuit, a A/D or D/A converter circuit, a correcting circuit and a pulse-generating circuit.
A head mounted display having a display unit, said display unit comprising:
- a plural of pixels formed over a substrate;
- wherein each of said pixels comprises a switching thin film transistor connected to a pixel electrode, and a control circuit,
- wherein at least a part of said control circuit is covered with said pixel electrode, and
- wherein said control circuit is selected from the group consisting of a processor circuit, a memory circuit, a A/D or D/A converter circuit, a correcting circuit and a pulse-generating circuit.
A personal communications device having a display unit, said display unit comprising:
- a plural of pixels formed over a substrate;
- wherein each of said pixels comprises a switching thin film transistor connected to a pixel electrode, and a control circuit,
- wherein at least a part of said control circuit is covered with said pixel electrode, and
- wherein said control circuit is selected from the group consisting of a processor circuit, a memory circuit, a A/D or D/A converter circuit, a correcting circuit and a pulse-generating circuit.
A car navigation system having a display unit, said display unit comprising:
- a plural of pixels formed over a substrate;
- wherein each of said pixels comprises a switching thin film transistor connected to a pixel electrode, and a control circuit,
- wherein at least a part of said control circuit is covered with said pixel electrode, and
- wherein said control circuit is selected from the group consisting of a processor circuit, a memory circuit, a A/D or D/A converter circuit, a correcting circuit and a pulse-generating circuit.
Dependencies are inferred from the claim text.