A pressing force sensor that includes a flat membrane piezoelectric element and a support. The flat membrane piezoelectric element includes a piezoelectric sheet having a piezoelectric constant. A first electrode is formed on a first main surface of the piezoelectric sheet and a second electrode is formed on a second main surface thereof. Long directions of the first electrode and the second electrode and a uniaxial stretching direction of the piezoelectric sheet form an angle of 45. An opening portion having an elliptical section is formed on the support. The flat membrane piezoelectric element abuts the opening portion of the support. The support and the flat membrane piezoelectric element are disposed such that the opening portion is included within an area of the second electrode.

A method and communication system for ophthalmic device manufacturing line is disclosed. More specifically, the communication device may be incorporated in early stages of manufacturing of the ophthalmic device to monitor process controls without delay. In some embodiments, a unique pedigree profile can be stored for an ophthalmic device during manufacturing and correlated with one or more of: design profiles, controlled process parameters, performance, and distribution channels.

The invention relates to layered graphene-ferroelectric structures for use as transparent electrodes in touch panels and display screen applications.

A touch panel including a first insulation substrate, a first conductive film, a first insulation film, first conductive wires, a second insulation substrate, a second conductive film, and second conductive wires is provided. The first conductive film is disposed on the first insulation substrate and the first insulation layer covers a portion of a periphery of the first conductive film so that the first conductive film has an exposed region. The first conductive wires are disposed on the periphery of the first conductive film and each of the first conductive wires includes an electrode segment and an extending segment. The electrode segment is electrically connected with the first conductive film and the extending segment is electrically isolated from the first conductive film. The second conductive film is disposed on the second insulation substrate. The second conductive wires are disposed on the periphery of the second conductive film.

Various techniques are provided to utilize nanostructures for process monitoring and feedback control. In one example, a method includes forming a layer of material including nanostructures distributed therein. Each nanostructure includes a quantum dot and a shell encompassing the quantum dot. The shells and quantum dots are configured to emit a first and second wavelength, respectively, in response to an excitation signal. The method further includes applying the excitation signal to at least a portion of the layer of material. The method further includes detecting an emitted signal from the portion of the layer of material, where the emitted signal is provided by at least a subset of the nanostructures in response to the excitation signal. The method further includes determining whether a manufacturing characteristic has been satisfied based at least on a wavelength of the emitted signal. Related systems and products are also provided.