Pixel patterns for organic light-emitting diode display

• US 9,337,241 B2
• Filed: 09/26/2014
• Issued: 05/10/2016
• Est. Priority Date: 03/19/2014
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Lee, Jungmin, Lee, ChoongHo, Kim, Jinkwang
• Primary Examiner(s): Nguyen, Dao H
• Assistant Examiner(s): Nguyen, Tram H
• Application Number:
  US14/498,950
• Publication Number:
  US 20150270317A1
• Time in Patent Office: 592 Days
• Field of Search: 257/40, 257/642, 257/643, 257/759, 257E51001-E51052, 257E25008-E25009, 438/29, 438/69, 438/82, 438/99, 438/27
• US Class Current: 1/1
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels

Abstract

An electronic device may include a display having an array of organic light-emitting diode display pixels. The display pixels may have subpixels of different colors. The subpixels may include red subpixels, green subpixels, and blue subpixels. The subpixels may be provided with shapes and orientations that improve manufacturing tolerances. Subpixels such as green and red subpixels may have hexagonal shapes while blue subpixel structures may be provided with diamond shapes coupled in pairs to form barbell-shaped blue subpixels. Subpixels can also be angled at 45° relative to horizontal. Subpixels ma have shapes that overlap adjacent display pixels. For example, an array of display pixels that has been rotated by 45° relative to the edges of a display substrate may have blue subpixels and or red subpixels that are shared between pairs of adjacent display pixels in an at of display pixels.

Claims

1. An organic light-emitting diode display, comprising:

an array of display pixels, including hexagonal red subpixels, hexagonal green subpixels, and blue subpixels, wherein the blue subpixels each include a pair of joined blue subpixel structures, and wherein each pair of joined blue subpixel structures comprises a pair of joined anodes.

2. The organic light-emitting diode display defined in claim 1 wherein the joined blue subpixel structures of each display pixel are a pair of joined hexagonal blue subpixel structures.

3. The organic light-emitting diode display defined in claim 1 wherein the joined blue subpixel structures of each display pixel are a pair of joined diamond blue subpixel structures.

4. The organic light-emitting diode display defined in claim 3 wherein the joined diamond blue subpixel structures of each blue subpixel are joined by a connector and wherein each green subpixel is vertically aligned along a horizontal axis with a respective connector.

5. The organic light-emitting diode display defined in claim 1 wherein the blue subpixels each include at least one diamond-shaped blue subpixel structure.

6. An organic light-emitting diode display, comprising:

a substrate having horizontal and vertical edges;

an array of display pixels, including red subpixels, green subpixels, and blue subpixels, wherein the array of display pixels is angled at 45°

relative to horizontal so that the display pixels extend diagonally relative to the horizontal and vertical edges, and wherein the red subpixels are rectangular and have edges that are angled at 45°

relative to the horizontal and vertical edges.

7. The organic light-emitting diode display defined in claim 6 wherein the blue subpixels are rectangular and have edges that are angled at 45°

relative to the horizontal and vertical edges.

8. The organic light-emitting diode display defined in claim 7 wherein the green subpixels are rectangular and have edges that are angled at 45°

relative to the horizontal and vertical edges.

9. The organic light-emitting diode display defined in claim 8 wherein each blue subpixel is shared between a respective pair of adjacent display pixels in the array of display pixels.

10. The organic light-emitting diode display defined in claim 9 wherein each blue subpixel has an elongated rectangular shape that extends between the pair of adjacent display pixels.

11. The organic light-emitting diode display defined in claim 10 wherein each red subpixel is shared between a respective pair of adjacent display pixels in the array of display pixels.

12. The organic light-emitting diode display defined in claim 11 wherein the green subpixels are individually controlled so that each display pixel has a respective green subpixel that is not shared with other display pixels in the array of display pixels.

13. An organic light-emitting diode display, comprising:

a substrate having horizontal and vertical edges; and

an array of display pixels having subpixels of different colors, wherein the array of display pixels is angled at 45°

relative to horizontal so that the display pixels extend diagonally relative to the horizontal and vertical edges, wherein the subpixels are rectangular and have edges that are angled at 45°

relative to the horizontal edges.

14. The organic light-emitting diode display defined in claim 13 wherein some of the subpixels have a given color and wherein the subpixels of the given color are each shared between a respective pair of adjacent display pixels in the array of display pixels.

15. The organic light-emitting diode display defined in claim 13 wherein the subpixels include red subpixels, green subpixels, and blue subpixels and wherein the red subpixels are each shared between a respective pair of adjacent display pixels in the array of display pixels.

16. The organic light-emitting diode display defined in claim 15 wherein the blue subpixels are each shared between a respective pair of adjacent display pixels in the array of display pixels.

17. The organic light-emitting diode display defined in claim 16 wherein the green subpixels are independently driven and are not shared between adjacent display pixels in the array of display pixels.