Assembly for the Selective Three-Dimensional or Two-Dimensional Representation of Images
The invention relates to an assembly for the selective three-dimensional or two-dimensional representation of images. The inventive assembly comprises an image reproduction unit ( 1 ) with a plurality of image elements, which in a predetermined allocation represent information from one or more views of a scene, object or text, a filter array ( 2 ) that is located behind the image reproduction unit ( 1 ) in the line of vision (B) of an observer, a first scattering layer ( 3 ) that is located behind the image reproduction unit ( 1 ) and in front of the filter array ( 2 ) in the line of vision of the observer, said layer being switched back and forth between a transparent condition and a scattering condition and a second scattering layer ( 4 ) that is located in front of the image reproduction unit ( 1 ) in the line of vision (B) of the observer and lies directly on said unit, the layer corresponding preferably to an anti-glare matt layer. The filter elements are arranged in such a way that defined expansion directions are predetermined for the light that is emitted by the image reproduction unit ( 1 ) in the transparent condition of the first scattering layer ( 3 ), said directions remaining essentially unaffected by the second scattering layer ( 4 ) and the structuring or the light that passes through the filter array ( 2 ) in the scattering condition of the first scattering layer ( 3 ) is reduced in relation to the first condition.
1 . Assembly for the selective three-dimensional or two-dimensional representation of images, comprising
an image replicating means ( 1 ) with a multiplicity of image elements which represent information from one or several aspects of a scene/an object/a text, respectively, in a predetermined allocation,
a filter array ( 2 ) behind the image replicating means ( 1 ), which comprises a multiplicity of wavelength filter elements that are permeable in certain wavelength ranges, in the line of sight (B) of a viewer,
a first scattering layer ( 3 ) located behind the image replicating means ( 1 ) and in front of the filter array ( 2 ), which can be selectively switched between a transparent state and a dispersing state, in the line of sight (B) of a viewer,
a second scattering layer ( 4 ) positioned in front of and directly on the image replicating means ( 1 ) in the line of sight (B) of a viewer, as an intensifier for the dispersing effect of the first scattering layer ( 3 ), whereby the second scattering layer ( 4 ) preferably corresponds to an antiglare matting,
whereby the filter elements are arranged in such a manner that
with the first scattering layer ( 3 ) in the transparent state, definite and predetermined directions of spreading are set for the light radiated from the image replicating means ( 1 ), which are largely uninfluenced by the second scattering layer ( 4 ) so that information from a first group of aspects is mainly or exclusively perceptible at a multiplicity of first viewing places, and information from a second group of aspects is mainly or exclusively perceptible at a multiplicity of second viewing places, and
with the first scattering layer ( 3 ) in the dispersing state, structuring of the light passing through the filter array ( 2 ) is diminished with respect to the first state.
2 . Assembly according to claim 1 , characterised in that the first and the second group of aspects in each case comprises one or several perspectives.
3 . Assembly according to claim 1 or 2 , characterised in that in its predetermined allocation, the image replicating means ( 1 ) represents information on different aspects of a scene/an object/a text once the first scattering layer ( 3 ) is in the transparent state, and the image replicating means ( 1 ) represents information on one aspect of a scene/an object/a text, respectively, when the first-scattering layer ( 3 ) is in the scattering state.
4 . Assembly according to any one of claims 1 to 3 , characterised in that the filter array ( 2 ) is designed as a passive filter.
5 . Assembly according to any one of claims 1 to 4 , characterised in that each individual filter element of the filter array ( 2 ) exhibits a random contour, and preferably a rectangular contour.
6 . Assembly according to any one of claims 1 to 5 , characterised in that the filter array ( 2 ) exclusively features such filter elements that are either opaque or transparent in the overall spectrum of visible light.
7 . Assembly according to any one of the aforementioned claims, characterised in that the first scattering layer ( 3 ) corresponds to a PDLC film.
8 . Assembly according to any one of the aforementioned claims, characterised in that the image replicating means ( 1 ) is an LCD display panel, and preferably a colour LCD display panel.
9 . Assembly according to any one of the aforementioned claims, characterised in that a lighting means (e) is positioned behind the filter array ( 2 ) in the line of sight (B) of a viewer, which radiates a flat beam of light, whereby the brightness of the lighting means ( 6 ) can preferably be altered.
10 . Assembly according to any one of the aforementioned claims, furthermore comprising a control electronics means that switches the first scattering layer ( 3 ) over to the transparent state or to the scattering state, respectively, in response to an electrical or electronic signal.