Abstract:
An active matrix display device comprises an array of display pixels, each pixel comprising: a current-driven light emitting display element (2); a drive transistor (22) for driving a current through the display element; a storage capacitor (24) for storing a voltage to be used for addressing the drive transistor; and an addressing transistor (16) for coupling data from a data line (6) to the pixel during pixel addressing. The addressing transistor (16) comprises a phototransistor, and the data line (6) is used for external monitoring of the phototransistor. This device design uses a pixel-addressing transistor (16) as the optical feedback element. This addressing transistor is a fundamental requirement of an active matrix-addressing scheme, and its use as a feedback element can therefore avoid any addition pixel complexity to implement an optical feedback function.
Abstract:
An active matrix display device comprises an array of display pixels, each pixel comprising a current-driven light emitting display element (2), a drive transistor (22) for driving a current through the display element (2) and a storage capacitor (30) for storing a voltage to be used for addressing the drive transistor (22). A discharge transistor (36) is used for discharging the storage capacitor (30) thereby to switch off the drive transistor in dependence on the light output of the display element (2). Reading circuitry (70) is used for monitoring the charge on a discharge capacitor (40), the pixel data is corrected in response to the reading circuitry measurements. This can extend the lifetime of the display.
Abstract:
A method and system for content pre-fetching during a processing system pre-boot runtime. First, it is determined when a processor of a processing system is in one of a busy wait state and an idle state during a pre-boot runtime of the processing system. Then, content is pre-fetched from a data storage unit of the processing system. The content is pre-fetched based upon a pre-fetch profile. The content is loaded into system memory of the processing system.
Abstract:
A plurality of instructions corresponding to a power management event are received. An instruction of the plurality of instructions is executed in a first programming system with a first interface, in response to determining that the instruction is in accordance with the first interface. The instruction is executed in a second programming system with a second interface, in response to determining that the instruction is not in accordance with the first interface.
Abstract:
Twin roll caster for casting metal strip comprises pair of parallel casting rolls forming nip to receive molten metal from elongate metal delivery nozzle formed in two pieces supported in end to end relationship with a gap between them. A pair of casting pool confinement plates are thrust against the ends of rolls by thrusters mounted with the side plastes on carriages forming part of moveable structures which are connected to the outer rends of nozzle pieces by pins and which can be moved by operation of screw jacks. The outer ends of nozzle segments can be accurately set in position relative to side plates prior to a casting and during a casting operation screw jacks can be operated so as to move the nozzle segments inwardly to match inward advance of the side plates as they wear.
Abstract:
Twin roll strip casting apparatus in which a pair of pool confining side plates (56) engage end surfaces of casting rolls (16) to form side confining closures for the pool. Plates (56) are mounted in side plate holders (82) connected to horizontally acting thrusters (83) which apply inward closure forces to the side plates (56). Thrusters (83) are mounted on a pair of carriages (101) disposed one at each end of the casting roll assembly and movable toward and away from one another to enable the spacing between them to be adjusted so that the carriages (101) can be preset before a casting operation to suit the width of the casting rolls (16). Carriages (101) are mounted on a central frame structure (103) which sits over the casting rolls (16).
Abstract:
A method for preparing a sorbent composition includes the steps of: (i) applying, from a solution or a slurry, a layer of a copper compound on the surface of a support material, and (ii) drying the coated support material, wherein the thickness of the copper compound layer on the dried support is in the range 1-200 μm. The precursor may be converted to a sorbent suitable for removing heavy metals from liquids or gases by applying one or more sulphur compounds to sulphide the copper compound and form CuS.
Abstract:
A transistor control circuit (74) comprises a source-gated thin film transistor (70), an input for receiving a drive voltage representing a desired control of the source-gated transistor and a current source (82) for causing a known current to pass through the source-gated transistor (70). A first capacitor (78) stores a resulting gate-source voltage of the source-gated transistor when the known current is passed through the source-gated transistor. The drive voltage is modified using the resulting gate-source voltage, and the modified voltage is used in the control of the source-gated transistor. This control can provide a translational shift in the operating characteristics of the transistor, and it has been found that this can compensate for ageing of the transistor, for non-uniformity between different devices, and for temperature variations.
Abstract:
The present invention provides a device for DNA sequencing, comprising DNA base calling at an early stage in the detection and processing of time controlled fluorescence detection for DNA sequencing applications.
Abstract:
An integrated microfluidic device having a number of chambers (11-MN) for heating a fluid, a number of electrical heating elements (R) for heating different ones of the chambers, a controller for controlling the heating elements to vary a temperature of the fluid in the chambers repeatedly through a cycle of different temperatures, the controller being arranged to time the temperature cycle for a given one of the chambers to be out of phase with temperature cycles of others of the chambers. This can help reduce peak power consumption, and thus reduce unwanted voltage drops on supply lines. These can cause loss of precision in heating and sensing circuits. The device can comprise a low temperature polysilicon on a glass substrate. The controller can be coupled to the heating elements using an active matrix of control lines and switches (T2).