摘要:
A process for printing a substrate comprising applying thereto an ink by means of an ink jet printer, wherein the ink comprises a latex binder, a liquid medium comprising water and organic solvent, and polymer-encapsulated pigment particles comprising a carboxy-functional dispersant crosslinked around a pigment core by a crosslinking agent, wherein the ink has a minimum film-forming temperature below 70° C. Inks are also claimed. The process and inks are useful for printing temperature-sensitive substrates, e.g. foil balloons and wrapping materials for special occasions.
摘要:
A touch system including a display panel associated with a first electrode, a touch panel having a plurality of touch electrodes having a plurality of transmit electrodes and a plurality of receive electrodes, and a voltage generating circuit is provided. When a mutual capacitance between a selected transmit electrode and a selected receive electrode is measured, the voltage generating circuit applies a first voltage of a first polarity to the selected transmit electrode, and substantially concurrently applies a second voltage of a second polarity that is opposite to the first polarity to at least one other transmit electrode for minimizing charges associated with an application of the first voltage to the selected transmit electrode and accumulated at the first electrode.
摘要:
An active matrix array device has a plurality of matrix array elements (100), each of which have a first capacitive device (120) coupled to a charging conductor (32m) via a first switch (100) being responsive to an addressing conductor (22n). In addition, the matrix array elements (100) comprise a second capacitive device (130) coupled to the first capacitive device (120) via a second switch (112) being responsive to en enable signal provided via an enable conductor (42n). The second capacitive device (130) is coupled to the control terminal of a third switch (114), which is coupled between the first capacitive device (120) and a potential source like the charging conductor (32m). The second capacitive device (130) is used to sample the voltage across the first capacitive device (120), which enables the third switch (114) if of an appropriate value, thus providing a conductive path between the first capacitive device (120) and the potential source. This arrangement allows for a low-power data refresh mode of the matrix array elements (100) with polarity inversion in subsequent refresh cycles.
摘要:
An amplification circuit comprises a capacitor arrangement (42) and a switching arrangement The capacitor arrangement has a first capacitor (C2) which has a voltage-dependent capacitance and a second capacitor (C1) (which may also be voltage-dependent). The circuit is operable in two modes, a first mode in which the input voltage is provided to one terminal of at least the first capacitor, and a second mode in which the switching arrangement causes charge to be redistributed between the first and second capacitors such that the voltage across the first capacitor changes to reduce the capacitance of the first capacitor, the output voltage being dependent on the resulting voltage across the first capacitor. The invention uses a voltage controlled capacitance in combination with charge sharing between capacitors, which has the result of providing a voltage amplification characteristic. This arrangement can thus be used for the amplification of an analogue voltage, or the boosting of a fixed level (i.e. digital voltage). Thus, the circuit of the invention can be used for level shifting or amplification, for example for use in the pixels of an active matrix array device.
摘要:
A toner for developing an electrostatic image comprising toner particles which include a binder resin, a wax and a colorant, wherein the wax has a melting point of between 50 and 150° C., the wax exists in the toner particles in domains of 2 μm or less mean particle size and (a) the mean circularity of the toner particles as measured by a Flow Particle Image Analyser is at least 0.90; and (b) the shape factor, SF1, of the toner particles is at most 165. A process for the manufacture of said toner which comprises the following steps: providing a latex dispersion; providing a wax dispersion; providing a colorant dispersion; mixing the latex dispersion, wax dispersion and colorant dispersion; and causing the mixture to flocculate.
摘要:
Magnetoresistive random access memory (MRAM) is used to provide in-pixel memory circuits for display devices. A memory circuit (25) comprises two MRAMs (60, 62), each coupled to a respective input of a flip-flop circuit (64). A display device (1) is provided comprising a plurality of pixels (20) each associated with a memory circuit (25). One of the MRAMs is a switchable MRAM (60), the other MRAM is a reference MRAM (62) arranged to provide a reference by which the changed states of the switchable MRAM (60) may be readily observed and measured in the form of a differential.
摘要:
A process for preparing a particulate solid is described, which comprises the steps of a) aggregating a dispersion comprising the particles i) and ii) and a liquid medium, wherein i) is 25 to 50 parts by weight of non-polymeric particles having an average particle size of from 1 to 10 microns and having a density of no more than 4 g/cm3; and ii) is 50 to 75 parts by weight of polymer particles having an average particle size of from 50 to 150 nm; b) optionally stabilising the aggregated particles; and c) heating the aggregated particles so as to cause particle coalescence.
摘要:
A cutting tool has: a rotatable hollow tube with an inlet at a distal end of the tube and a cutting edge at the perimeter of the inlet, the tube being arranged so as to rotate when in use so as to cut a work piece with the cutting edge; and an auger housed within the hollow tube, the auger being arranged so as to rotate when in use so as to feed cut material from the inlet along the hollow tube, wherein a distal end of the auger is set back from the cutting edge of the tube.
摘要:
An active matrix array device comprises an array of device elements, each device element having an associated circuit. Each circuit comprises an addressing switch (14) and a storage capacitor (20) for maintaining a voltage applied to the device element (16) through the addressing switch (14). Each circuit is associated with a gain element (36), and the storage capacitor (20) is in a feedback path of the gain element. The gain element (36) is used as a way to increase the effective value of the storage capacitor, so as to provide an improvement in the performance of active matrix devices.
摘要:
A cutting tool comprising: a rotatable hollow tube with an inlet at a distal end of the tube and a cutting edge at the perimeter of the inlet, the tube being arranged so as to rotate when in use so as to cut a work piece with the cutting edge; and an auger housed within the hollow tube, the auger being arranged so as to rotate when in use so as to feed cut material from the inlet along the hollow tube, wherein a distal end of the auger is set back from the cutting edge of the tube.A method of drilling a hole in a dry fibre assembly, the method comprising engaging the dry fibre assembly with a cutting tool comprising a hollow tube with an inlet at a distal end of the tube and a cutting edge at the perimeter of the inlet; and rotating the hollow tube so as to cut the dry fibre assembly with the cutting edge.