Display system
AssigneeITT Industries, Inc.
InventorsHans Prohaska, Horst Rachner
Life of this patent
Estimating the term…
Abstract
A display system comprising at least one display element, for example in the form of a pivoted pointer for indication of a changing measured value in association with a scale. The display element is implemented by an electro-optical cell filled with a liquid, the cell having two transparent plates separated by a distance frame with an associated illuminating device at the back side. Portions of one of the transparent plates is rendered opaque, the remaining areas on that plate providing transparent windows. Transparent areas are also provided between the plates. One of said transparent areas has a contour corresponding with the contour of the scale. The other of said areas extends over a larger surface.
Claims17
In a display system, especially adapted for motor vehicles, comprising at least one display element containing means for indication of a changing measured value, said means being associated with a scale in such a way that the actual size of the measured value shown by the display element may be recognized, said display element being implemented by an electro-optical cell filled with a liquid, said cell having two transparent plates separated by a distance frame and provided with transparent electrodes, said cell having an associated illuminating device at the back side, the improvement in which portions of one of the said transparent plates are rendered opaque, the remaining areas on said one plate providing transparent windows, transparent areas being provided between the plates, one of said transparent areas having a contour corresponding with the contour of the scale and the other of said transparent areas having a larger area than the area having the scale contour.
Dependencies are inferred from the claim text.