Electronic display tiling apparatus and method thereof
View Patent ↗Disclosed is a method and apparatus for substantially eliminating the appearance of seams between tiled panels of a display. Non-imaging magnification may be used to substantially eliminate the appearance of seams. Additionally, the appearance of seams between the tiled panels of a display may be substantially eliminated by employing propagation based elimination. The methods disclosed can be used to generate substantially seamless 2D and 3D displays. Additionally, a method and apparatus for achieving substantially uniform panel brightness and color correction may be addressed. The substantially seamless tiled displays may employ specific data formats for use in displaying images on the individual displays which may be tiled together to form a larger, substantially seamless tiled display and may employ other techniques not utilized in known video wall applications. These functions may include an intensity envelope in addition to substantially complying with the Digital Cinema Initiative (“DCI”) security concerns.
1. A method for reducing the appearance of seams in a video wall, the method comprising:
locating a first panel proximate to a second panel, wherein a seam is formed by the first and second panels, wherein the first panel comprises first and second macro pixels, the first and second macro pixels each comprising a plurality of pixels, and wherein the second panel comprises a third macro pixel;
locating a first waveguide so that light from the first macro pixel is substantially coupled into the first waveguide;
locating a second waveguide so that light from the second macro pixel is substantially coupled into the second waveguide, wherein the first and second waveguides are angled towards different portions of the first panel and are operable to relay light from the first and second macro pixels of the first panel, respectively, to an image plane, and wherein relaying the light from the first macro pixel to the image plane and relaying the light from the second macro pixel to the image plane result in different magnifications; and
locating a third waveguide so that light from the third macro pixel included in the second panel is substantially coupled into the third waveguide, wherein the third waveguide is operable to relay light from the third macro pixel to the image plane with a magnification.
2. The method for reducing the appearance of seams in a video wall of claim 1 , further comprising substantially overlapping a first perimeter of the first panel with a second perimeter of the second panel.
3. The method for reducing the appearance of seams in a video wall of claim 1 , further comprising locating a substrate at the image plane.
4. The method for reducing the appearance of seams in a video wall of claim 3 , wherein the substrate is a diffuser.
5. The method for reducing the appearance of seams in a video wall of claim 1 , wherein locating the first waveguide further comprises locating the first waveguide of axis relative to the plane of the first panel.
6. The method for reducing the appearance of seams in a video wall of claim 1 , wherein at least the first waveguide has a first section and a second section, wherein the first section is operable to receive light from the first macro pixel and is angled off axis relative to the plane of the first panel, and the second section of the first waveguide has a substantially straight section from which the light exits.
7. The method for reducing the appearance of seams in a video wall of claim 1 , further comprising determining the length of the second section of the first waveguide by accounting for at least the x and y base dimensions of the first section of the first waveguide.
8. The method for reducing the appearance of seams in a video wall of claim 1 , further comprising varying the off axis angle of the first waveguide and the off axis angle of the second waveguide such that the off axis angle of the first waveguide and the off axis angle of the second waveguide are different.
9. The method for reducing the appearance of seams in a video wall of claim 3 , further comprising locating a fixed pattern retarder proximate to the substrate at the new image plane.
10. The method for reducing the appearance of seams in a video wall of claim 3 , further comprising allowing the first macro pixel and the second macro pixel to employ six colors to create stereoscopic images.
11. The method for reducing the appearance of seams in a video wall of claim 10 , further comprising allowing the first macro pixels and the second macro pixels to display corresponding stereo pairs at substantially the same time with a first set of colors corresponding to the first macro pixel and a second set of colors corresponding to the second macro pixel.
12. The method for reducing the appearance of seams in a video wall of claim 10 , further comprising allowing stereoscopic images to be produced by displaying time sequential images.
13. A video wall comprising:
a first panel comprising first and second macro pixels, the first and second macro pixels each comprising a plurality of pixels;
a second panel comprising a third macro pixel, the third macro pixel comprising a plurality of pixels, wherein a seam is formed by the first panel and the second panel;
a first waveguide aligned with the first panel so that light from the first macro pixel is substantially coupled into the first waveguide;
a second waveguide aligned with the first panel so that light from the second macro pixel is substantially couple into the second waveguide, wherein the first and second waveguides are angled towards different portions of the first panel and are operable to relay light from the first and second macro pixels of the first panel, respectively, to an image plane, and wherein relaying the light from the first macro pixel to the image plane and relaying the light from the second macro pixel to the image plane result in different magnifications;
a third waveguide aligned with the second panel so that light from the third macro pixel is substantially coupled into the third waveguide, wherein the third waveguides is operable to relay light from the third macro pixel to the image plane with a magnification.