Abstract:
A plasma display device comprises a discharge chamber (11, 22), and electrodes (3, 4, 8, 24, 25). The electrodes are covered by a dielectric layer (5, 9, 22). Said dielectric layer comprises a metal oxide matrix comprising alkyl groups.
Abstract:
A system (1) is provided which comprises a housing (2) and an electric cable (3), which housing (2) has an EMC shielding wall (4) with an edge (5). The wall (4) is provided with a recess (7) which borders the edge (5). The electric cable (3) is electrically connected to the EMC shielding wall (4) of the housing (2) at the recess (7) via contacting means (8). Means (9, 10) are provided substantially at the same recess (7) for absorbing any mechanical pull loads on the electric cable (3). Thus a compact, reliable, and safe EMC shielding system (1) is provided.
Abstract:
The Application describes a method and devices for manufacturing a broadband cholesteric polarizer having a well-defined bandwidth and edge position. To this end, a liquid-crystalline cholesterically ordered layer comprising reactive chiral monomers and reactive nematogenic monomers having a different reactivity is polymerized by exposure to radiation. The invention is characterized in that the intensity of the radiation is increased substantially, preferably by a factor of 10 or more, when a desired edge position of the band is reached. As a result, the bandwidth and edge position of the reflection band reached at that moment are frozen as it were. A monochromatic sensor can be used to determine whether said edge position has been reached, the wavelength used by the sensor corresponding to the wavelength of the desired edge position of the band. Broadband, cholesteric polarizers having a well-defined bandwidth and edge position can very advantageously be used in a display.
Abstract:
A method of producing a top gate thin-film transistor comprises the steps of forming doped silicon source and drain regions (6a,8a) on an insulating substrate (2) and subjecting the face of the substrate (2) on which the source and drain regions (6a,8a) are formed to plasma treatment to form a doped surface layer. An amorphous silicon layer (12) is formed on the doped surface layer over at least the spacing between the source and drain regions (6a,8a) and an insulated gate structure (14,16) is formed over the amorphous silicon layer (12). Laser annealing of areas of the amorphous silicon layer not shielded by the gate conductor is carried out to form polysilicon portions (12a,12b) having the impurities diffused therein. In the method of the invention, doped silicon source and drain regions underlie the silicon layer to be crystallized using the laser annealing process. It has been found that the laser annealing process can then result in crystallization of the full thickness of the amorphous silicon layer. This results from the similar thermal properties of the doped source and drain regions and the silicon layer defining the main body of the transistor.
Abstract:
A threaded interpreter (916) is suitable for executing a program comprising a series of program instructions stored in a memory (904). For the execution of a program instruction the threaded interpreter includes: a preparatory unit (918) for executing a plurality of preparatory steps making the program instruction available in the threaded interpreter, and an execution unit (920) with one or more machine instructions emulating the program instruction. According to the invention, the threaded interpreter is designed such that during the execution on an instruction-level parallel processor of the series of program instructions machine instructions implementing a first one of the preparatory steps are executed in parallel with machine instructions implementing a second one of the preparatory steps for respective ones of the series of program instructions.
Abstract:
The invention relates to a local area network including at least one bridge terminal, which bridge terminal is provided for transmitting data between the terminals of at least two sub-networks via a wireless medium. The bridge terminal is alternately connected to the sub-networks for exchanging data. For buffering received data for an unconnected sub-network, the bridge terminal includes an intermediate store.
Abstract:
The invention provides a tool to select reliable organic LED devices, where the risk for failure before the end of its lifetime is low. This tool comprises the steps of: i) subjecting the device to a high electric field over the electroluminescent layer. This leads to a division of the devices into two, clearly separated, populations, namely one population with a low leakage current (current through the electroluminescent layer in reverse voltage operation) and one population with a high leakage current. In this step, the first population is selected in accordance with a current criterion. ii) detecting instabilities in the leakage current, referred to as noise. It has been established that these instabilities arise in particular at reverse driving voltages between 1 and 10 Volts. These instabilities are a measure of the occurrence of early failures during operation. In this step, the devices are selected in accordance with a noise criterion.
Abstract:
The invention relates to a method of manufacturing a patterned layer of a polymer material having a cholesteric order, in which the material is oriented in such a way that the axis of the molecular helix of the cholesterically ordered material extends transversely to the layer, and in which the layer is patterned in that it comprises at least one region in which the pitch of the molecular helix differs from that of another region. This inventive method comprises the following steps: a. providing a layer of a cholesterically ordered material comprising a quantity of a convertible compound which in its non-converted and in its converted state determines the pitch of the cholesterically ordered material to a different extent, in which the conversion of said compound may be induced by radiation, b. irradiating the layer in accordance with a desired pattern so that at least a part of the convertible compound in the irradiated parts of the layer is converted, c. polymerizing and/or crosslinking the cholesterically ordered material to form a three-dimensional polymer. The convertible compound preferably comprises an isomerizable, chiral compound. Polymerization and/or crosslinking are preferably induced by irradiation using electron-beam radiation or actinic radiation.
Abstract:
The invention relates to a frequency converter FCV comprising: a frequency divider FRACN, and an input port REG intended to receive a control word N(1:L) which determines a division ratio between the input FLO and output FDIV frequencies of the frequency divider FRACN. The frequency converter in accordance with the invention FCV additionally comprises interface means INT, arranged between the input port REG and the frequency divider FRACN, and intended to carry out a conversion of a control word value N(1:L) to a first and a second parameter M(1:L-P) and k(1:P) which jointly define a non-integer value of the division ratio of the frequency divider FRACN. The invention enables the user to program the frequency divider FRACN by means of a unique control word N(1:L), while customarily two control words are necessary to program non-integer division ratios.
Abstract:
A method for recognizing a pattern that comprises a set of physical stimuli, said method comprising the steps of: providing a set of training observations and through applying a plurality of association models ascertaining various measuring values pj(knullx), jnull1 . . . M, that each pertain to assigning a particular training observation to one or more associated pattern classes; setting up a log/linear association distribution by combining all association models of the plurality according to respective weight factors, and joining thereto a normalization quantity to produce a compound association distribution; optimizing said weight factors for thereby minimizing a detected error rate of the actual assigning to said compound distribution; recognizing target observations representing a target pattern with the help of said compound distribution.