| 摘要 |
The invention provides visual displays, and methods of operating such visual displays, in which use is made of a plurality of light emitting diode elements which are arranged to emit a respective colour when suitably energised. Diode elements having different colours are juxtaposed so that when one or some of the juxtaposed elements are energised they show a first colour, and when others of the juxtaposed elements are simultaneously energised, the elements collectively generate a further colour or colours which is or are a derivative of their respective colours. Examples are described of use of the visual displays for such purposes as the provision of advertising materials, decorative materials, and variable background shapes, colours and textures, such as for display and furnishings. Other examples described and shown are of the use of the visual displays of the invention for operation of screens, such as television and monitor screens, wherein the displays of the invention are utilised on the same dimensional scale as the known pixels of electronic tubes. Other uses of the invention are in the fields of display of digital and analog information in electronic apparatus such as meters. The invention further provides an electronic instrument which has a display with a group of light emitting diode elements, the elements of a first portion of the group being of a first colour when energised, and the elements of a second portion being of a second colour when energised, the elements of the first portion being juxtaposed to the elements of the second portion so that when both elements are energised at the same time they collectively display a third colour which is a derivative of their respective colours.
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