Data line driver for a matrix display and a matrix display
AssigneeSharp Kabushiki Kaisha
InventorsGraham Andrew Cairns, Michael James Brownlow, Andrew Kay
Life of this patent
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Abstract
A data line driver is provided for driving M data lines of a matrix display such as a liquid crystal display. The driver comprises x data line circuits whose inputs are connected to a common input for receiving a serial image signal, where x is less than M. Each of the data line circuits comprises a store for storing one picture element of image data at a time, a multiplexer for storing in the store in sequence image data for m picture elements from at least part of a line of image data, where m is greater than one, and a demultiplexer for directing a line signal corresponding to the image data stored in the store to each of m of the M data lines in sequence.
Claims18
A data line driver for connection to M data lines of a matrix display, comprising x data line circuits whose inputs are connected to a common input for receiving a serial image signal, where x is less than M, wherein each of the data line circuits comprises:
- a store for storing one picture element of image data at a time;
- a multiplexer for storing in the store in sequence image data for m picture elements from at least part of a line of image data, where m is greater than one;
- and
- a demultiplexer for directing a line signal corresponding to the image data stored in the store to each of m data lines of the M data lines in sequence.
Dependencies are inferred from the claim text.