Abstract: A method of displaying information on an instrument for viewing by a user includes the steps of a) displaying information on a first focal plane, and b) moving the information displayed on the first focal plane to a different focal plane when an alarm or critical situation arises, and c) then moving the information back to the first focal plane, and d) repeating steps b) and c) in order that the viewer of the instrument becomes aware of the displayed information.

Abstract: A matt surface (7) of a display screen (2) is converted to a non-diffuse optically smooth surface (11). The matt surface may be a diffusive surface (7) formed on a birefringent film (6) of an LCD screen (2). The display screen (2) is the front screen of a multilevel three dimensional display comprising layered screens (2, 3). The conversion from matt to non-diffuse and optically smooth surface reduces the blurring of displayed images.

Abstract: A circuit board (14) on which the electronic components (2,3) providing power to a series of light sources (6) is positioned as near as possible to light sources in order to minimise parasitic energy losses which would be introduced by lengths of wiring. The light sources (5) are usually elongate tubular Cold Cathode Fluorescent Tubes arranged parallel to one another in a single plane and the circuit board (14) may be mounted directly over the light sources, towards one end of the tubes. Standard PCB board-to-board connectors (12) may be provided at an edge of the circuit board (14) and a further circuit board (10) provided with a series of conductive tracks may provide both a mechanical and electrical connection between the circuit board (14) and the light sources (5). A power distribution method is also disclosed in which both current and temperature of the light sources are monitored and regulated in order to extend the lifetime of the light sources (5) and to stabilize their brightness.

Abstract: A display comprising of multi-levels of screens, each screen being selectively transparent with the ability to display images. A method of defining screen layers for upon which to display image on by using sequential time based pixel change as a variable which defines layer.