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US 10,381,177 B2Granted
Push switch, method of manufacturing push switch, and electronic device including push switch
AssigneesCitizen Electronics Co., Ltd., Citizen Watch Co., Ltd.
InventorRyo Wakuda
Life of this patent
Estimating the term…
Abstract
A push switch includes a substrate including a first electrode and a second electrode that are arranged on an upper surface of the substrate; a resilient member arranged on the first electrode over the second electrode of the substrate; and a light-transmitting member including a crosslinked product of a chain olefin-cyclic olefin copolymer. The light-transmitting member covers the resilient member from above and includes an upper surface, a lower surface, a peripheral side surface between edges of the upper surface and edges of the lower surface of the light-transmitting member, and a periphery of the lower surface of the light-transmitting member. The periphery may be fixed on the substrate.
Claims15
A push switch comprising:
- a substrate comprising electrodes on an upper surface of the substrate, the electrodes comprising a first electrode and a second electrode;
- a resilient member arranged on the first electrode of the substrate over the second electrode of the substrate, the resilient member having no through hole;
- a light-transmitting member comprising an elastic film comprising a crosslinked product of a chain olefin-cyclic olefin copolymer, the light-transmitting member covering the resilient member from above, and having an upper surface, a lower surface and a peripheral side surface between edges of the upper surface and edges of the lower surface of the light-transmitting member;
- and
- a light-emitting element with a light-emitting surface,
- wherein a periphery of the lower surface of the light-transmitting member is fixed on the substrate,
- wherein the substrate has a cut portion at an edge of at least one side of an outer periphery of the substrate, the cut portion penetrating from the upper surface of the substrate to a lower surface of the substrate, and
- wherein the light-emitting element is arranged at a position at the cut portion of the substrate.
5 more elements
A push switch comprising:
- a substrate comprising:
- at least a pair of metal plates that comprise a first metal plate and a second metal plate;
- and
- at least a pair of protrusions that comprise a first protrusion that is positioned adjacent to the first metal plate, and a second protrusion that is positioned adjacent to the second metal plate,
- wherein a first end portion of the first metal plate is positioned at an inner portion of an upper surface of the substrate, and a second end portion of the first metal plate is positioned adjacent to a lower surface of the substrate, and
- wherein a first end portion of the second metal plate is positioned more adjacent to a center of the inner portion than the first end portion of the first metal plate and a second end portion of the second metal plate is positioned adjacent to the lower surface of the substrate;
- a resilient member arranged on the first end portion of the first metal plate over the first end portion of the second metal plate, the resilient member having no through hole;
- a light-transmitting member comprising an elastic film comprising a crosslinked product of a chain olefin-cyclic olefin copolymer, the light-transmitting member covering the resilient member from above;
- and
- a light-emitting element with a light-emitting surface,
- wherein the substrate comprises a cut portion at an edge of at least one side of an outer periphery of the substrate, the cut portion penetrating from the upper surface of the substrate to the lower surface of the substrate,
- wherein the light-emitting element is arranged at a position corresponding to the cut portion of the substrate,
- wherein the first metal plate is partly embedded in the substrate, and the second end portion of the first metal plate that appears from the lower surface of the substrate comprises a curved portion having an approximately arched shape and protruding below the lower surface of the substrate,
- wherein the first metal plate is partly embedded in the substrate, and the second end portion of the first metal plate that appears from the upper surface of the substrate comprises a curved portion having an approximately arched shape and is positioned lower than the upper surface of the substrate,
- wherein the second metal plate is partly embedded in the substrate, and the second end portion of the second metal plate that appears from the lower surface of the substrate comprises a curved portion having an approximately arched shape and protruding below from the lower surface of the substrate, and
- wherein the second metal plate is partly embedded in the substrate, and the second end portion of the first metal plate that appears from the upper surface of the substrate comprises a curved portion having an approximately arched shape and is positioned lower than the upper surface of the substrate.
13 more elements
Dependencies are inferred from the claim text.