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US 11,029,793 B2Granted
Touch detecting device and touch-detection capable display device
AssigneeJapan Display Inc.
InventorsKoji Ishizaki, Hayato Kurasawa
Life of this patent
Estimating the term…
Abstract
A touch detecting device and a touch-detection capable display device are provided each including: a substrate; a touch detection electrode provided on a plane parallel to the substrate and including a plurality of metal wires; a first conductive layer overlapping the metal wires in contact therewith and provided between the substrate and each of the metal wires in a direction perpendicular to the substrate; and a second conductive layer provided above the metal wires. At least one of the first conductive layer and the second conductive layer has a higher sheet resistance than the metal wires.
Claims16
A touch detecting device comprising:
- a substrate;
- a touch detection electrode provided on a plane parallel to the substrate and including a plurality of metal wires;
- a plurality of conductive layers including
- a first conductive layer that overlaps the metal wires and that is in direct contact with the metal wires, the first conductive layer having a first sheet resistance, and
- a second conductive layer provided above the metal wires, the second conductive layer having a second sheet resistance;
- a protective layer;
- a polarizing plate;
- and
- an insulating layer,
- wherein
- (a) the first conductive layer having the first sheet resistance that is less than a sheet resistance of the polarizing plate and that is no less than the second sheet resistance, (b) the metal wires having a third sheet resistance that is less than each of the first sheet resistance and the second sheet resistance, (c) the protective layer, (d) the insulating layer, (e) the second conductive layer having the second sheet resistance that is less than the sheet resistance of the polarizing plate and that is no more than the first sheet resistance, the second conductive layer being in direct contact with the polarizing plate, and (f) the polarizing plate, are sequentially stacked in this order on the substrate in a vertical direction perpendicular to the substrate,
- allowing static electricity applied to the polarizing plate to flow to the second conductive layer that is in direct contact with the polarizing plate, and
- allowing static electricity applied to the metal wires to flow to the first conductive layer that is in direct contact with the metal wires.
10 more elements
A touch detecting device comprising:
- a substrate;
- a touch detection electrode provided on a plane parallel to the substrate and including a plurality of metal wires;
- a plurality of conductive layers including
- a first conductive layer that overlaps the metal wires and that is in direct contact with the metal wires, the first conductive layer having a first sheet resistance, and
- a second conductive layer provided above the metal wires, the second conductive layer having a second sheet resistance;
- a protective layer;
- a polarizing plate;
- an insulating layer;
- a cover substrate;
- and
- a third conductive layer,
- wherein
- (a) the first conductive layer having the first sheet resistance no less than the second sheet resistance, (b) the metal wires having the third sheet resistance that is less than each of the first sheet resistance and the second sheet resistance, (c) the protective layer, (d) the insulating layer, (e) the second conductive layer having the second sheet resistance that is no ore more than the first sheet resistance, the second conductive layer being in direct contact with the polarizing plate, (f) the polarizing plate, (g) the cover substrate, and (h) the third conductive layer that is a touch surface of the touch detecting device, are sequentially stacked in this order on the substrate in the vertical direction,
- allowing static electricity from a finger to flow through the third conductive layer and then return to the finger, and
- allowing static electricity reached to the polarizing plate via the cover substrate to reach the second conductive layer through the polarizing plate that is in direct contact with the second conductive layer, then to the metal wires through the second conductive layer.
12 more elements
A touch detecting device comprising:
- a substrate;
- a touch detection electrode provided on a plane parallel to the substrate and including a plurality of metal wires;
- a plurality of conductive layers including
- a first conductive layer that overlaps the metal wires and that is in direct contact with the metal wires, the first conductive layer having a first sheet resistance, and
- a second conductive layer provided above the metal wires, the second conductive layer having a second sheet resistance;
- a protective layer;
- a polarizing plate;
- an insulating layer;
- and
- a cover substrate,
- wherein
- (a) the first conductive layer having the first sheet resistance no less than the second sheet resistance, (b) the metal wires having the third sheet resistance that is less than each of the first sheet resistance and the second sheet resistance, (c) the protective layer, (d) the insulating layer, (e) the polarizing plate, (f) the cover substrate, and (g) the second conductive layer that has the second sheet resistance that is no more than the first sheet resistance, the second conductive layer being is a touch surface of the touch detecting device, are sequentially stacked in this order on the substrate in the vertical direction,
- allowing static electricity from a finger to flow through the second conductive layer and then return to the finger, and
- allowing static electricity applied to a surface of the cover substrate from an outside to be transmitted to the metal wires through the second conductive layer, the cover substrate, the polarizing plate, the insulating layer, and the protective layer.
11 more elements
Dependencies are inferred from the claim text.