Visual display screen arrangement
First Claim
1. A visual display screen arrangement for displaying an image, comprising:
- image display means having a display area;
a translucent cover member arranged to cover the display area and having a first cover member edge, the display area having an edge extending towards but not as far as the said first cover member edge;
characterised in that the cover member has;
(a) a generally planar portion covering at least a part of the display area and being arranged to pass rays of light substantially without bending such that the majority of the display area as viewed externally of the arrangement and through the said generally planar portion, appears substantially undistorted; and
(b) a refracting portion which includes the said first cover member edge, the said refracting portion being arranged to bend only those rays of light emanating from at or adjacent to he edge of the display area, such that the said display area as viewed externally of the arrangement and through the said refracting portion, appears to extend substantially as far as the edge of the cover member.
2 Assignments
0 Petitions
Accused Products
Abstract
A visual display screen (100′) such as an LCD screen is provided with a display area (30) for displaying an image. The display area (30) extends as far as an optically inactive region (60), containing device drivers, at the edge of the screen.
A cover plate assembly (40) overlays the display area (30). The cover plate assembly is laminar and an upper translucent plastics layer (520) thereof is planar over the display area (30) but is curved at the edge to provide a lens there. Thus, the image in the display area viewed through the cover plate assembly (40) appears to be shifted to the edge of the screen (100′) so that the optically inactive region (60) becomes invisible. Two screens can be abutted adjacent each other with no visible join using this technique. Compression of the image at the edge compensates for edge distortion by the lens. Repeating of the image either side of the join between two screens increases the viewing angle beyond which the join appears.
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Citations
20 Claims
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1. A visual display screen arrangement for displaying an image, comprising:
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image display means having a display area;
a translucent cover member arranged to cover the display area and having a first cover member edge, the display area having an edge extending towards but not as far as the said first cover member edge;
characterised in that the cover member has;
(a) a generally planar portion covering at least a part of the display area and being arranged to pass rays of light substantially without bending such that the majority of the display area as viewed externally of the arrangement and through the said generally planar portion, appears substantially undistorted; and
(b) a refracting portion which includes the said first cover member edge, the said refracting portion being arranged to bend only those rays of light emanating from at or adjacent to he edge of the display area, such that the said display area as viewed externally of the arrangement and through the said refracting portion, appears to extend substantially as far as the edge of the cover member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification