Display
AssigneeSharp Kabushiki Kaisha
InventorsGraham Andrew Cairns, Michael James Brownlow
Life of this patent
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Abstract
An active matrix display comprises an active matrix 1 and a digital data driver 30 formed on a common substrate 100 by a common integration process. The driver 30 comprises a serial to parallel converter 20 having m registers forming at least one set for storing display data for m picture elements, where m is less than the number M of data lines of the matrix 1. The outputs of the registers are connected to m digital/analogue converters 21 whose outputs are connected to m bus lines 50 of an m phase analogue driver 22 in the form of a switching network. The switching network connects in turn groups of m physically adjacent data lines of the matrix 1 to the m bus line, respectively.
Claims18
An active matrix display comprising an active matrix and a digital data driver formed on a common substrate by a common integration process, the active matrix having M data lines and the driver comprising:
- m registers forming at least one set for storing display data for m picture elements, where m is less than M,
- m digital/analogue converters arranged to receive the display data from the m registers, respectively,
- m bus lines for receiving from the m converters, respectively, analogue signals representing desired picture element states, and
- a switching network for connecting in turn groups of m physically adjacent ones of the data lines to the m bus lines, respectively,
- wherein in response to a predetermined clock pulse the display data from the at least one set of m registers is simultaneously supplied to the digital/analogue converters.
Dependencies are inferred from the claim text.