Pixel arrangements for electronic device displays

Patent metadata

Field	Value
Publication number	US-11774641-B2
Application number	US-202017005191-A
Country	US
Kind code	B2
Filing date	Aug 27, 2020
Priority date	Sep 6, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A lenticular display may be formed with convex curvature. The lenticular display may have a lenticular lens film with lenticular lenses that extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display. To enable more curvature in the display while ensuring satisfactory stereoscopic display performance, the display may have stereoscopic zones and non-stereoscopic zones. A central stereoscopic zone may be interposed between first and second non-stereoscopic zones. The non-stereoscopic zones may have more curvature than the stereoscopic zone. To prevent crosstalk within the lenticular display, a louver film may be incorporated into the display. The pixel array may have a diagonal layout and may be covered by vertically oriented lenticular lenses.

First claim

The invention claimed is:

1. A display comprising:
a substrate;
an array of pixels formed on the substrate and arranged in a plurality of rows and diagonal columns, wherein each row extends in a first direction and wherein at least some of the rows are shifted in the first direction relative to a preceding row to form the diagonal columns; and
a lenticular lens film formed over the substrate, wherein the lenticular lens film comprises a plurality of elongated lenticular lenses that extend in a second direction that is orthogonal to the first direction, wherein the diagonal columns extend parallel to a first axis that is at a non-zero angle relative to the second direction, and wherein the non-zero angle is between 5 degrees and 30 degrees.

2. The display defined in claim 1 , wherein the at least some of the rows are shifted in the first direction relative to a preceding row by a distance that is greater than 0 and less than a center-to-center pitch between adjacent pixels.

3. The display defined in claim 1 , wherein each elongated lenticular lens overlaps at least two pixels in each row.

4. The display defined in claim 1 , wherein each pixel comprises a red sub-pixel, a blue sub-pixel, and a green sub-pixel, wherein the blue sub-pixel of each pixel has a width and a length that is greater than the width, and wherein the length of the blue sub-pixel in each pixel extends parallel to the first direction.

5. The display defined in claim 1 , wherein each pixel comprises a red sub-pixel, a blue sub-pixel, and a green sub-pixel, wherein the blue sub-pixel of each pixel has a width and a length that is greater than the width, and wherein the length of the blue sub-pixel in each pixel extends parallel to the second direction.

6. The display defined in claim 1 , wherein each pixel comprises red, blue, and green sub-pixels in a layout.

7. The display defined in claim 6 , wherein the layout of each pixel in the array of pixels is the same.

8. The display defined in claim 6 , wherein a first plurality of pixels in the array of pixels has a first layout, wherein a second plurality of pixels in the array of pixels has a second layout that is different than the first layout, and wherein, in each row, pixels having the first layout alternate with pixels having the second layout.

9. The display defined in claim 6 , wherein at least one of the red, blue, and green sub-pixels has a diamond shape.

10. The display defined in claim 6 , wherein at least one of the red, blue, and green sub-pixels has a triangular shape.

11. The display defined in claim 1 , further comprising:
first signal paths that extend in the first direction; and
second signal paths that extend parallel to the diagonal columns across the array of pixels.

12. The display defined in claim 1 , further comprising:
first signal paths that extend in the first direction; and
zig-zag signal paths that have diagonal segments that extend parallel to the diagonal columns and that are connected by intervening horizontal segments that extend in the first direction.

13. The display defined in claim 12 , wherein the zig-zag signal paths further comprise supplemental segments coupled to the diagonal segments, wherein each supplemental segment has a length that is within 20% of a length of the horizontal segments.

14. A display comprising:
a substrate;
an array of pixels formed on the substrate and arranged in a plurality of rows and diagonal columns, wherein each row extends in a first direction and wherein at least some of the rows are shifted in the first direction relative to a preceding row to form the diagonal columns; and
a lenticular lens film formed over the substrate, wherein the lenticular lens film comprises a plurality of elongated lenticular lenses that extend in a second direction that is orthogonal to the first direction, wherein a first plurality of pixels in the array of pixels has a first layout, wherein a second plurality of pixels in the array of pixels has a second layout that is different than the first layout, wherein, in each row, pixels having the first layout alternate with pixels having the second layout, and wherein the first layout is vertically flipped to form the second layout.

15. The display defined in claim 14 , wherein each pixel comprises a red sub-pixel, a blue sub-pixel, and a green sub-pixel.

16. A display comprising:
a substrate having convex curvature;
a lenticular lens film formed over the substrate, wherein the lenticular lens film comprises a plurality of elongated lenticular lenses that extend vertically across the substrate; and
an array of pixels formed on the substrate and covered by the lenticular lens film, wherein the array of pixels is arranged in rows that extend horizontally across the substrate and columns that extend diagonally at a non-zero, non-orthogonal angle relative to the elongated lenticular lenses.

17. The display defined in claim 16 , wherein the substrate has first and second opposing surfaces, wherein the first surface has the convex curvature, and wherein the first surface is interposed between the array of pixels and the second surface.

Assignees

• Apple Inc

Inventors

• Huang Yi-Pai
• Singh Manjap
• Yu Cheng-Ho
• Kim Byoungsuk
• Huang Yi
• Yamamoto Hitoshi
• Mathai Mathew K
• Chen Chieh-Wei
• Chou Ping-Yen
• Nam Donghee
• Wang Chaohao
• Chen Hao

Classifications

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• G02B3/005 Primary

  arranged along a single direction only, e.g. lenticular sheets (G02B3/0043 takes precedence) · CPC title

• G02B30/29

  characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size · CPC title