Semiconductor device, input/output device, and electronic appliance
First Claim
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1. An input/output device comprising:
- a first substrate having flexibility;
a first insulating layer over the first substrate;
a first transistor over the first insulating layer;
a first conductive layer over the first insulating layer;
a light-emitting element that is over and electrically connected to the first transistor and comprises an EL layer containing a light-emitting organic compound between a first electrode and a second electrode;
a first bonding layer over the light-emitting element;
a sensing element and a second transistor that are over the first bonding layer and electrically connected to each other;
a second insulating layer over the sensing element and the second transistor; and
a second substrate having flexibility over the second insulating layer,wherein the light-emitting element emits light toward the second substrate,wherein B/A is greater than or equal to 0.7 and less than or equal to 1.7, where A is a distance between the first insulating layer and the EL layer and B is a distance between the second insulating layer and the EL layer,wherein the sensing element comprises a pair of electrodes, andwherein one of the pair of electrodes and the first conductive layer are electrically connected to each other through a conductive connector.
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Abstract
A flexible input/output device and an input/output device having high resistance to repeated bending are provided. The input/output device includes a first flexible substrate, a first insulating layer over the first substrate, a first transistor over the first insulating layer, a light-emitting element over and electrically connected to the first transistor and including an EL layer between first and second electrodes, a first bonding layer over the light-emitting element, a sensing element and a second transistor over the first bonding layer and electrically connected to each other, a second insulating layer over the sensing element and the second transistor, and a second flexible substrate over the second insulating layer. In the input/output device, B/A is greater than or equal to 0.7 and less than or equal to 1.7, where A is a thickness between the EL layer and the first insulating layer and B is a thickness between the EL layer and the second insulating layer.
19 Citations
21 Claims
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1. An input/output device comprising:
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a first substrate having flexibility; a first insulating layer over the first substrate; a first transistor over the first insulating layer; a first conductive layer over the first insulating layer; a light-emitting element that is over and electrically connected to the first transistor and comprises an EL layer containing a light-emitting organic compound between a first electrode and a second electrode; a first bonding layer over the light-emitting element; a sensing element and a second transistor that are over the first bonding layer and electrically connected to each other; a second insulating layer over the sensing element and the second transistor; and a second substrate having flexibility over the second insulating layer, wherein the light-emitting element emits light toward the second substrate, wherein B/A is greater than or equal to 0.7 and less than or equal to 1.7, where A is a distance between the first insulating layer and the EL layer and B is a distance between the second insulating layer and the EL layer, wherein the sensing element comprises a pair of electrodes, and wherein one of the pair of electrodes and the first conductive layer are electrically connected to each other through a conductive connector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An input/output device comprising:
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a first substrate having flexibility; a first insulating layer over the first substrate; a display portion comprising; a first transistor over the first insulating layer; and a light-emitting element that is over and electrically connected to the first transistor and comprises an EL layer containing a light-emitting organic compound between a first electrode and a second electrode; a first bonding layer over the light-emitting element; an input portion comprising a sensing element and a second transistor that are over the first bonding layer and electrically connected to each other; a second insulating layer over the sensing element and the second transistor; a second substrate having flexibility over the second insulating layer; a first conductive layer that is over the first insulating layer and electrically connected to a first flexible printed circuit through a first connector provided in a first opening formed over the first conductive layer, wherein the first flexible printed circuit is configured to supply a first signal to the input portion; and a second conductive layer that is over the first insulating layer and electrically connected to a second flexible printed circuit through a second connector provided in a second opening formed over the second conductive layer, wherein the second flexible printed circuit is configured to supply a second signal to the display portion, wherein the light-emitting element emits light toward the second substrate, wherein B/A is greater than or equal to 0.7 and less than or equal to 1.7, where A is a distance between the first insulating layer and the EL layer and B is a distance between the second insulating layer and the EL layer, wherein the sensing element comprises a pair of electrodes, and wherein one of the pair of electrodes and the first conductive layer are electrically connected to each other through a conductive connector. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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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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InventorsEguchi, Shingo, Yamazaki, Shunpei
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Primary Examiner(s)Lamb, Christopher R
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Application NumberUS14/700,527Publication NumberTime in Patent Office985 DaysField of SearchNoneUS Class CurrentCPC Class CodesG06F 2203/04102 Flexible digitiser, i.e. co...G06F 2203/04103 Manufacturing, i.e. details...G06F 3/0443 using a single layer of sen...G06F 3/0446 using a grid-like structure...G06F 3/0447 Position sensing using the ...G06F 3/047 using sets of wires, e.g. c...G09G 2300/0426 Layout of electrodes and co...G09G 5/003 Details of a display termin...H10K 2102/311 Flexible OLEDH10K 2102/351 ThicknessH10K 50/841 Self-supporting sealing arr...H10K 59/123 Connection of the pixel ele...H10K 59/1275 Electrical connections of t...H10K 59/40 OLEDs integrated with touch...H10K 59/871 Self-supporting sealing arr...
