Time sequentially scanned display
First Claim
1. A time sequentially scanned display comprising a matrix of picture elements, each of which comprises a display element, an addressable latch having a plurality of storage locations and a first address input for selecting any one of the storage locations for storing image data, and a multiplexer for supplying image data from any one of the storage locations at a time to the display element, the multiplexer having a second address input for selecting which of the storage locations supplies image data to the display element,wherein the addressable latch comprises a demultiplexer and a latch, the demultiplexer for supplying image data to the latch.
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Accused Products
Abstract
A time sequentially scanned display comprises a matrix 20 of picture elements 21. Each of the picture elements comprises a display element 9, for instance of liquid crystal type. An addressable latch 3 has a plurality of storage locations which may be selectively updated in response to an address supplied to an address input. A multiplexer 7 supplies image data from any one of the storage locations at a time to the display element 9. The multiplexer has an address input for selecting which of the storage locations of the latch 3 supplies image data to the display element 9. In some of the embodiments, the address inputs are connected together and addressed by the outputs of a single counter 11 whereas, in other embodiments, the address inputs of the latch 3 and the multiplexer 7 are addressed independently, for instance by two counters 11a and 11b. Such an arrangement permits various types of asynchronous operation between addressing and displaying data.
89 Citations
45 Claims
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1. A time sequentially scanned display comprising a matrix of picture elements, each of which comprises a display element, an addressable latch having a plurality of storage locations and a first address input for selecting any one of the storage locations for storing image data, and a multiplexer for supplying image data from any one of the storage locations at a time to the display element, the multiplexer having a second address input for selecting which of the storage locations supplies image data to the display element,
wherein the addressable latch comprises a demultiplexer and a latch, the demultiplexer for supplying image data to the latch.
Specification