Display device and method of producing same
First Claim
1. A display device comprising:
- an active matrix substrate having a peripheral portion and a driver circuit section comprising a plurality of circuit elements and a plurality of polycrystalline silicon thin film transistors;
a counter substrate;
a liquid crystal material filled between the active matrix substrate and the counter substrate; and
an individually-wired line array for supplying a clock signal, a data signal or electric power to the plurality of circuit elements in the driver circuit section, wherein the individually-wired line array is extended to the peripheral portion of the active matrix substrate, wherein;
the peripheral portion of the active matrix substrate comprises a multi-layer bus line-equipped section having a bus line located on the insulator, the bus line is connected to the individually-wired line array via the via hole, and the bus line comprises a connecting terminal for connecting the display device to an external circuit; and
the insulator is a pre-formed resin substrate having a bus line located on a surface thereof and a via hole in the substrate.
4 Assignments
0 Petitions
Accused Products
Abstract
A driver circuit-integrated type active matrix substrate 212 has, on a glass substrate 210, a liquid crystal display unit 221 including a matrix array composed of thin film transistors, and driver circuits 224–226 for driving the liquid crystal display unit. A peripheral portion of the glass substrate 210 has recessed grooves 260–263 formed therein, and power supply lines 251–254 for supplying power to the driver circuits 225 and 226 are buried in the recessed grooves. Such a configuration reduces the resistance of bus wiring lines such as the power supply lines for the driver circuits and data lines, without increasing an area of the peripheral portion. The driver circuit-integrated type active matrix substrate reduces an amount of voltage drop in power supply voltage, ensuring reliable operation of the driver circuits.
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Citations
24 Claims
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1. A display device comprising:
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an active matrix substrate having a peripheral portion and a driver circuit section comprising a plurality of circuit elements and a plurality of polycrystalline silicon thin film transistors; a counter substrate; a liquid crystal material filled between the active matrix substrate and the counter substrate; and an individually-wired line array for supplying a clock signal, a data signal or electric power to the plurality of circuit elements in the driver circuit section, wherein the individually-wired line array is extended to the peripheral portion of the active matrix substrate, wherein; the peripheral portion of the active matrix substrate comprises a multi-layer bus line-equipped section having a bus line located on the insulator, the bus line is connected to the individually-wired line array via the via hole, and the bus line comprises a connecting terminal for connecting the display device to an external circuit; and the insulator is a pre-formed resin substrate having a bus line located on a surface thereof and a via hole in the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 24)
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15. A display device comprising:
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an active matrix substrate having a peripheral portion and a driver circuit section comprising a plurality of circuit elements and a plurality of polycrystalline silicon thin film transistors; a counter substrate; a liquid crystal material filled between the active matrix substrate and the counter substrate; and an individually-wired line array for supplying a clock signal, a data signal or electric power to the plurality of circuit elements in the driver circuit section, wherein the individually-wired line array is extended to the peripheral portion of the active matrix substrate, wherein; the active matrix substrate has a recessed groove located in the peripheral portion; a bus line connected to the individually-wired line array is buried in the groove, the bus line is a layered structure comprising a copper foil layer, a copper plating layer, and a gold-nickel plating layer. - View Dependent Claims (18, 22)
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16. A display device comprising:
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an active matrix substrate having a peripheral portion and a driver circuit section comprising a plurality of circuit elements and a plurality of polycrystalline silicon thin film transistors; a counter substrate; a liquid crystal material filled between the active matrix substrate and the counter substrate; and an individually-wired line array for supplying a clock signal, a data signal or electric power to the plurality of circuit elements in the driver circuit section, wherein the individually-wired line array is extended to the peripheral portion of the active matrix substrate, wherein; the active matrix substrate comprises an organic resin layer in the peripheral portion thereof, a connecting electrode, and a bus line connected to the individually-wired line array and buried in the organic resin layer; the organic resin comprises a photosensitive resin; the organic resin layer has a via hole formed by photolithography; and the bus line is electrically connected to the individually wired line array via the connecting electrode located in the via hole. - View Dependent Claims (17, 19, 20, 21, 23)
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Specification