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Compensating for aperture parallax distortion in tiled displays

Imported: 23 Feb '17 | Published: 22 Oct '02

Lawrence A. Booth, Jr.

USPTO - Utility Patents

Abstract

A tiled display may include subpixels that may be partially occluded by an overlaying matrix. The matrix hides the joints between adjacent tiles. The partial occlusion of one subpixel of a pixel may result in chromatic shifts and/or luminance reduction. The partially occluded subpixel may be compensated for by providing an extra light producing subpixel of the same color on the opposite side of the matrix opening.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic depiction of one embodiment of the present invention;

FIG. 2 is a top plan view of the display shown in FIG. 1 before the matrix is applied; and

FIG. 3 is an enlarged, partial, top plan view of the embodiment shown in FIG.

1.

Claims

1. A display comprising:

2. The display of claim 1 including a plurality of tiles meeting along joints, said matrix overlaying said joints.

3. The display of claim 2 wherein said elements are formed in a first layer, and a substantially transparent layer is positioned between said first layer and said matrix.

4. The display of claim 1 wherein said matrix includes openings of sufficient size such that each opening exposes a single pixel made up of color producing elements that produce three different colors.

5. The display of claim 4 wherein said extra element is positioned under said matrix.

6. The display of claim 4 including three color producing elements that produce light of three colors, including a central color producing element and a first and second lateral color producing element on each side of said central color producing element, said display further including a first duplicate color producing element that produces the color of said first lateral color producing element and a second duplicate color producing element that produces the color of said second lateral color producing element, said first duplicate color producing element being positioned oppositely of said central color producing element with respect to the first lateral color producing element.

7. The display of claim 1 wherein said elements are emissive color producing elements.

8. The display of claim 7 wherein said emissive color producing elements are light emitting devices.

9. The display of claim 8 wherein said emissive color producing elements are organic light emitting devices.

10. The display of claim 8 wherein said emissive color producing elements are inorganic light emitting devices.

11. The display of claim 1 wherein said elements are contrast enhancing color producing elements.

12. A method comprising:

13. The method of claim 12 including providing an extra subpixel on both sides of said pixel, said extra subpixels being visible from angles from which one of said subpixels is partially occluded.

14. The method of claim 13 including positioning said extra subpixels under said matrix.

15. The method of claim 14 including providing an extra red subpixel adjacent said blue subpixel.

16. The method of claim 15 including forming said extra subpixels of a size smaller than said subpixels.

17. The method of claim 12 including forming red, green and blue subpixels, said red and blue subpixels being positioned on either side of said green subpixel, and providing an extra blue subpixel adjacent said red subpixel.

18. A tiled display comprising:

19. The display of claim 18 wherein each of said three subpixels produces light of a different color and each of said two extra subpixels produces light of a different one of said colors.

20. The display of claim 19 wherein each of said extra subpixels produces light that duplicates the light of one of said subpixels, said extra subpixels positioned in said pixel in an opposed position with respect to the subpixel whose color is duplicated by said extra subpixel.

21. The display of claim 20 wherein said extra subpixels are positioned under the matrix.