Liquid crystal display device comprising two overlapping conductive lines under a sealant
First Claim
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1. A liquid crystal display device comprising:
- a substrate;
thin film transistors over the substrate;
pixel electrodes each electrically connected to one of the thin film transistors;
a counter substrate facing the substrate;
a liquid crystal material provided between the substrate and the counter substrate;
a sealant provided between the substrate and the counter substrate;
a first conductive line over the substrate;
a first insulating film over the first conductive line;
a second conductive line over the first insulating film;
a second insulating film over the second conductive line;
a transparent conductive film over the second insulating film; and
a flexible printed circuit over the transparent conductive film;
wherein the sealant is in direct contact with the second insulating film;
wherein the sealant overlaps the first conductive line and the second conductive line;
wherein the second conductive line overlaps the first conductive line;
wherein the sealant does not overlap the transparent conductive film;
wherein the first conductive line is electrically connected to the second conductive line;
wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film;
wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film;
wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; and
wherein the transparent conductive film is made from a same layer as the pixel electrodes.
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Abstract
A height difference under a sealant is reduced in a case where lines are present under the sealant. There is provided a substrate having an active matrix display circuit and peripheral driving circuits, a counter substrate having a counter electrode provided on the substrate in a face-to-face relationship therewith, a sealant provided between the substrate and the counter substrate such that it surrounds the active matrix display circuit and peripheral driving circuits, a liquid crystal material provided inside the sealant, a plurality of external connection lines provided on the substrate under the sealant with a resin inter-layer film interposed therebetween for electrically connecting the active matrix display circuit and peripheral driving circuits to circuits present outside the sealant and an adjustment layer provided in the same layer as the plurality of external connection lines.
55 Citations
30 Claims
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1. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; and a flexible printed circuit over the transparent conductive film; wherein the sealant is in direct contact with the second insulating film; wherein the sealant overlaps the first conductive line and the second conductive line; wherein the second conductive line overlaps the first conductive line; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; and wherein the transparent conductive film is made from a same layer as the pixel electrodes. - View Dependent Claims (2, 3, 4, 5)
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6. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; and a flexible printed circuit over the transparent conductive film; wherein the sealant is in direct contact with the second insulating film; wherein the second conductive line overlaps the first conductive line under the sealant; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; and wherein the transparent conductive film is made from a same layer as the pixel electrodes. - View Dependent Claims (7, 8, 9, 10)
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11. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; a flexible printed circuit over the transparent conductive film; and a conductive layer over the substrate; wherein the sealant is in direct contact with the second insulating film; wherein the sealant overlaps the first conductive line and the second conductive line; wherein the second conductive line overlaps the first conductive line; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; wherein the transparent conductive film is made from a same layer as the pixel electrodes; wherein the sealant overlaps the conductive layer; and wherein the conductive layer is not electrically connected to any of the first conductive line, the second conductive line, the thin film transistors, and the flexible printed circuit. - View Dependent Claims (12, 13, 14, 15)
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16. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; a flexible printed circuit over the transparent conductive film; and a conductive layer over the substrate; wherein the sealant is in direct contact with the second insulating film; wherein the second conductive line overlaps the first conductive line under the sealant; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; wherein the transparent conductive film is made from a same layer as the pixel electrodes; wherein the sealant overlaps the conductive layer; and wherein the conductive layer is not electrically connected to any of the first conductive line, the second conductive line, the thin film transistors, and the flexible printed circuit. - View Dependent Claims (17, 18, 19, 20)
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21. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; a flexible printed circuit over the transparent conductive film; a first conductive layer formed from a same layer as the first conductive line; and a second conductive layer formed from a same layer as the second conductive line; wherein the sealant is in direct contact with the second insulating film; wherein the sealant overlaps the first conductive line and the second conductive line; wherein the second conductive line overlaps the first conductive line; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; wherein the transparent conductive film is made from a same layer as the pixel electrodes; wherein the second conductive layer overlaps the first conductive layer under the sealant; and wherein the first conductive layer and the second conductive layer are not electrically connected to any of the first conductive line, the second conductive line, the thin film transistors, and the flexible printed circuit. - View Dependent Claims (22, 23, 24, 25)
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26. A liquid crystal display device comprising:
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a substrate; thin film transistors over the substrate; pixel electrodes each electrically connected to one of the thin film transistors; a counter substrate facing the substrate; a liquid crystal material provided between the substrate and the counter substrate; a sealant provided between the substrate and the counter substrate; a first conductive line over the substrate; a first insulating film over the first conductive line; a second conductive line over the first insulating film; a second insulating film over the second conductive line; a transparent conductive film over the second insulating film; a flexible printed circuit over the transparent conductive film; a first conductive layer formed from a same layer as the first conductive line; and a second conductive layer formed from a same layer as the second conductive line; wherein the sealant is in direct contact with the second insulating film; wherein the second conductive line overlaps the first conductive line under the sealant; wherein the sealant does not overlap the transparent conductive film; wherein the first conductive line is electrically connected to the second conductive line; wherein the second conductive line is electrically connected to the flexible printed circuit via the transparent conductive film; wherein the second conductive line and the transparent conductive film are in direct contact via an opening in the second insulating film; wherein the flexible printed circuit and the transparent conductive film each completely cover the opening; wherein the transparent conductive film is made from a same layer as the pixel electrodes; wherein the second conductive layer overlaps the first conductive layer under the sealant; and wherein the first conductive layer and the second conductive layer are not electrically connected to any of the first conductive line, the second conductive line, the thin film transistors, and the flexible printed circuit. - View Dependent Claims (27, 28, 29, 30)
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Specification
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Current AssigneeSemiconductor Energy Laboratory Co., Ltd.
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Original AssigneeSemiconductor Energy Laboratory Co., Ltd.
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InventorsHirakata, Yoshiharu, Yamazaki, Shunpei
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Primary Examiner(s)Qi, Mike
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Application NumberUS14/215,455Publication NumberTime in Patent Office729 DaysField of Search349/149, 349/152, 349/153, 349/143, 349/138US Class Current1/1CPC Class CodesG02F 1/133345 Insulating layers G02F1/133...G02F 1/133388 with constructional differe...G02F 1/1339 Gaskets; Spacers; Sealing o...G02F 1/1345 Conductors connecting elect...G02F 1/13454 Drivers integrated on the a...
