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US 2003/0076451 A1Published application
Active matrix display device
AssigneeKoninklijke Philips Electronics N.V.
InventorsJason R. Hector, John R. Hughes, Martin J. Edwards
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AssigneeKoninklijke Philips Electronics N.V.
InventorsJason R. Hector, John R. Hughes, Martin J. Edwards
Estimating the term…
An active matrix display device comprises an array of picture elements, e.g. liquid crystal picture elements, first and second sets of address conductors (16, 18) extending in row and column directions respectively and connected with the picture elements, and a set of connection conductors (30) extending in the same direction as the second set of address conductors (18), each of which is connected to a respective one of the first set of conductors (16) at the location of a picture element, and via which address signals are supplied to that first set. Picture elements other than those at the locations of the connections between the connection conductors and first set of address conductors are provided with a capacitance between their picture element electrode and their associated address conductor of the first set in order to compensate for the effects of a parasitic capacitance present between the picture element electrodes and the connection conductors which can lead to anomalies in the display outputs of the picture elements following their addressing.
An active matrix display device having an array of picture elements which each comprise a picture element electrode and an associated switching device and which are located at respective intersections between crossing first and second sets of address conductors connected to the picture elements and via which selection and data signals respectively are supplied to the picture elements, the device including a set of connection conductors through which selection signals are provided to the first set of address conductors and each of which extends in the direction of, and between, a respective adjacent pair of address conductors of the second set and is electrically connected to a respective address conductor of the first set at the location of a respective picture element, and in which a parasitic capacitance exists in each picture element between the picture element electrode and a connection conductor, wherein picture elements other than those at the locations of the connections between the connection conductors and the address conductors of the first set are each provided with a supplementary capacitance between their picture element electrodes and their associated address conductors of the first set.
An active matrix display device according to any one of the preceding claims, wherein the picture elements comprise liquid crystal picture elements.
Dependencies are inferred from the claim text.