Optimized color display device which uses a matrix to control the hue and uses a matrix to control color saturation
AssigneeSextant Avionique
InventorsBruno Barbier, Jean-Claude Ebert, Patrick Lach, Jean-Blaise Migozzi
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Abstract
The device includes a source of white images, a liquid crystal matrix to control the hue and a liquid crystal matrix to control the saturation of the images displayed.
Claims29
Color image display device whose image parameters can be optimized, in particular with respect to human visual acuity, which includes in cascade to a light beam, a device to control a luminance of displayed images, a liquid crystal device to control a hue of the displayed images depending on an electrical signal applied thereto which changes an orientation of the liquid crystal therein, and a device to control a saturation of the dismayed images.
Device according to any of the previous claims, which includes at least one connecting optic associated with the said devices to control the hue of the images and to control the saturation of the images.
A color display device, comprising, arranged along a light path:
- a variable intensity light source;
- a first variable polarizer, which splits light input thereto into light having two perpendicular polarization axes and two complementary colors;
- and
- a second variable polarizer, which suppresses light along one of said two polarization axes.
A method of generating a color display, comprising the steps of:
- generating light along a path;
- variably polarizing the light along the path into light having two perpendicular polarization axes and two complementary colors;
- and
- variably polarizing the light along the path in order to suppresses light along one of said two polarization axes.
Dependencies are inferred from the claim text.