Abstract: A liquid crystal device includes a first substrate (TFT substrate) including a first dielectric substrate, a second substrate (slot substrate) including a second dielectric substrate, a liquid crystal layer provided between the first substrate and the second substrate and in all of an effective region and a portion of a non-effective region, a sealing seal portion configured to define the maximum value of the area of the liquid crystal layer when viewed from a normal direction of the first or second dielectric substrate, a cell gap control seal portion configured to define the minimum value of the thickness of the liquid crystal layer in the effective region, and a buffer portion provided in contact with the liquid crystal layer in the non-effective region and that deforms more easily due to external force than the first and second dielectric substrates in the effective region. The buffer portion includes a sheet and a joining section that joins the sheet and the first or second dielectric substrate.

Abstract: A scanning antenna includes a TFT substrate including a plurality of patch electrodes, a slot substrate including a slot electrode, and a liquid crystal layer provided between the TFT substrate and the slot substrate. The slot electrode includes a plurality of slots disposed corresponding to the plurality of patch electrodes and a solid portion not including the plurality of slot. When viewed from a normal direction of the substrate, the patch electrode is disposed across the slot in a first direction and overlaps the solid portion at both ends of the slot in each of a plurality of antenna units, and when viewed from the normal direction of the substrate, at least one of a periphery of the solid portion and a periphery of the patch electrode includes a recessed portion or a protruding portion in at least one antenna unit of the plurality of antenna units.

Abstract: A TFT substrate includes a dielectric substrate and a plurality of antenna unit regions arranged on the dielectric substrate. Each of the plurality of antenna unit regions has a TFT and a patch electrode electrically connected to the drain electrode of the TFT. The patch electrode includes a first electrode layer formed of the same conductive film as the gate electrode of the TFT and a second electrode layer formed of the same conductive film as the source electrode of the TFT.

Abstract: A liquid crystal device includes a first substrate (TFT substrate) including a first dielectric substrate, a second substrate (slot substrate) including a second dielectric substrate, a liquid crystal layer provided between the first substrate and the second substrate and in all of an effective region and a portion of a non-effective region, a sealing seal portion configured to define the maximum value of the area of the liquid crystal layer when viewed from a normal direction of the first or second dielectric substrate, a cell gap control seal portion configured to define the minimum value of the thickness of the liquid crystal layer in the effective region, and a buffer portion provided in contact with the liquid crystal layer in the non-effective region and that deforms more easily due to external force than the first and second dielectric substrates in the effective region. The buffer portion includes a sheet and a joining section that joins the sheet and the first or second dielectric substrate.

Abstract: A scanning antenna includes a TFT substrate including a plurality of patch electrodes, a slot substrate including a slot electrode, and a liquid crystal layer provided between the TFT substrate and the slot substrate. The slot electrode includes a plurality of slots disposed corresponding to the plurality of patch electrodes and a solid portion not including the plurality of slot. When viewed from a normal direction of the substrate, the patch electrode is disposed across the slot in a first direction and overlaps the solid portion at both ends of the slot in each of a plurality of antenna units, and when viewed from the normal direction of the substrate, at least one of a periphery of the solid portion and a periphery of the patch electrode includes a recessed portion or a protruding portion in at least one antenna unit of the plurality of antenna units.

Abstract: A scanning antenna including a transmission and/or reception region including a plurality of antenna units arranged in the transmission and/or reception region and a non-transmission and/or reception region includes a TFT substrate including a plurality of first TFTs supported by a first dielectric substrate and a plurality of patch electrodes, a slot substrate including a slot electrode including a plurality of slots, a liquid crystal layer provided between the TFT substrate and the slot substrate, and a plurality of inspection electrode sections disposed while not overlapping the plurality of antenna units when viewed from a normal direction of the first dielectric substrate.

Abstract: A TFT substrate includes a dielectric substrate and a plurality of antenna unit regions arranged on the dielectric substrate. Each of the plurality of antenna unit regions has a TFT and a patch electrode electrically connected to the drain electrode of the TFT. The patch electrode includes a first electrode layer formed of the same conductive film as the gate electrode of the TFT and a second electrode layer formed of the same conductive film as the source electrode of the TFT.

Abstract: A scanning antenna including a transmission and/or reception region including a plurality of antenna units arranged in the transmission and/or reception region and a non-transmission and/or reception region includes a TFT substrate including a plurality of first TFTs supported by a first dielectric substrate and a plurality of patch electrodes, a slot substrate including a slot electrode including a plurality of slots, a liquid crystal layer provided between the TFT substrate and the slot substrate, and a plurality of inspection electrode sections disposed while not overlapping the plurality of antenna units when viewed from a normal direction of the first dielectric substrate.