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Title:
DISPLAY WITH INTEGRATED ELECTRODES
Document Type and Number:
WIPO Patent Application WO/2017/060487
Kind Code:
A4
Abstract:
An inorganic light-emitting diode display with integrated electrodes includes a display surface having a display area and a plurality of spatially separated light-emitting diodes (such as inorganic light-emitting diodes) disposed in rows on the display surface in the display area. The inorganic light-emitting diodes in each row of inorganic light-emitting diodes are electrically connected by one or more electrical conductors. One or more row touch electrodes are disposed in rows over the display surface in the display area between the rows of inorganic light-emitting diodes and are disposed on the display surface and have a width that is larger than a length and width of the light-emitting diodes. A display with an integrated touch screen includes one or more sensing elements disposed in a common plane with the light emitters or on a side of the light emitters opposite the display surface.

Inventors:
COK RONALD S (IE)
Application Number:
PCT/EP2016/074093
Publication Date:
July 27, 2017
Filing Date:
October 07, 2016
Export Citation:
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Assignee:
X CELEPRINT LTD (IE)
International Classes:
H01L27/32; G06F3/041; G06F3/044
Attorney, Agent or Firm:
KIRKHAM, Nicholas A. et al. (GB)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 2 June 2017 (02.06.2017)

1. An inorganic light-emitting diode display with integrated electrodes, comprising: a display surface having a display area;

a plurality of spatially separated inorganic light-emitting diodes (iLEDs) disposed in rows on the display surface in the display area, the inorganic light-emitting diodes in each row of inorganic light-emitting diodes electrically connected by one or more electrical conductors on the display surface and

one or more row touch electrodes disposed in rows over the display surface at least partially in the display area between rows of, and not over the, inorganic light-emitting diodes, wherein the one or more row touch electrodes are disposed on the display surface and have a width that is larger than a length and width of the light-emitting diodes.

2. The display of claim 1, wherein row touch electrodes are not above or below (e.g., in the same plane) the iLEDs in a direction orthogonal to the display surface.

3. The display of claim 1, wherein the one or more row touch electrodes extend across the display area.

4. The display of claim 1, wherein the plurality of spatially separated iLEDs comprise red light emitters emitting red light, green light emitters emitting green light, and blue light emitters emitting blue light.

5. The display of claim 4, comprising a plurality of pixels, wherein:

each pixel comprises a red light emitter, a green light emitter, and a blue light emitter; and

the distance between any two light emitters in a respective pixel is less than the distance between adjacent pixels.

6. The display of claim 1, wherein the one or more row touch electrodes are opaque.

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7. The display of claim 1, comprising one or more column touch electrodes disposed over the display surface in the display area, the column touch electrodes extending in a different direction (e.g., perpendicular) than the row touch electrodes.

8. The display of claim 7, wherein the iLEDs are disposed in columns and the column touch electrodes are disposed between the columns of iLEDs in a direction parallel to the display surface.

9. The display of claim 7, wherein the one or more column touch electrodes are opaque (e.g., not visually transparent).

10. The display of claim 7, wherein the row touch electrodes and the column touch electrodes form a capacitive touch sensor.

11. The display of claim 7, wherein the row touch electrodes and the column touch electrodes are at least partially in the same plane.

12. The display of claim 7, wherein the row touch electrodes and the column touch electrodes are at least partially on a common surface.

13. The display of claim 7, wherein the row touch electrodes and the column touch electrodes are at least partially disposed on the display surface.

14. The display of claim 10, comprising a jumper (e.g., a micro-transfer printed jumper) electrically connecting two portions of a common column electrode.

15. The display of claim 1, wherein the one or more row touch electrodes are located on a common plane with the iLEDs.

16. The display of claim 1, comprising a light-absorbing layer located on a common layer with the iLEDs.

17. The display of claim 1, comprising a light-absorbing layer located at least partially between the one or more row touch electrodes and the display surface or a light-absorbing layer at least partially on a side of the row electrodes opposite the display surface.

18. A display with an integrated touch screen, comprising:

a display surface having a display area;

a plurality of spatially separated inorganic light emitters disposed on the display surface in the display area; and

a touch screen including one or more sensing elements, wherein the sensing elements are disposed in a common plane with the inorganic light emitters.

19. A display with an integrated touch screen, comprising:

a display surface having a display area;

a plurality of spatially separated inorganic light emitters disposed on the display surface in the display area that emit light through the display surface; and

a touch screen including one or more sensing elements, wherein the sensing elements are disposed on a side of the inorganic light emitters opposite the display surface.

20. The display of claim 18 or 19, wherein the sensing elements are electrodes forming capacitors.

21. The display of claim 20, wherein the row touch electrodes are orthogonal to the column touch electrodes and the column touch electrodes or the row touch electrodes include at least two portions electrically connected by a jumper.

22. The display of claim 18 or 19, wherein the sensing elements are not visually transparent.

23. The display of claim 18 or 19, comprising a light-absorbing layer located at least partially in a common layer with the light emitters or at least partially in a layer behind the light emitters in a direction orthogonal to the display surface or at least partially in a layer on a side of the sensing elements opposite the display surface.

24. The display of claim 23, wherein the light-absorbing layer includes optical vias in which the light emitters are disposed.

25. The display of claim 18 or 19, wherein the sensing elements each include one or more sensing components and all of the sensing components are disposed in the common plane with the light emitters.

26. The display of claim 18 or 19, wherein the sensing elements each include one or more sensing components and all of the sensing components are disposed on a side of the light emitters opposite the display surface in a direction orthogonal to the display surface.

27. The display of claim 18 or 19, wherein the sensing elements each include two or more sensing components and at least one sensing component is disposed in the common plane with the light emitters and at least one sensing component is disposed on a side of the light emitters opposite the display surface in a direction orthogonal to the display surface.

28. An inorganic light-emitting diode display with integrated electrodes, comprising: a display surface having a display area;

a plurality of spatially separated inorganic light-emitting diodes (iLEDs) disposed on the display surface in the display area;

a plurality of row touch electrodes disposed in rows over the display surface in the display area between the inorganic light-emitting diodes; and

a plurality of column touch electrodes disposed in columns over the display surface in the display area between the light-emitting diodes in a direction parallel to the display surface.

29. The display of claim 28, wherein the row touch electrodes, the column touch electrodes, or both the row touch electrodes and the column touch electrodes are opaque.

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30. The display of claim 28 or 29, wherein the row touch electrodes, the column touch electrodes, or both the row touch electrodes and the column touch electrodes are located on a side of the iLEDs adjacent to the display surface.

31. The display of claim 28, wherein the row touch electrodes and the column touch electrodes comprise a touch screen.

32. The display of any one of the preceding claims, wherein each of the plurality of inorganic micro light-emitting diodes has a width from 2 to 5 μπι, 5 to 10 μπι, 10 to 20 μηι, or 20 to 50 μηη.

33. The display of any one of the preceding claims, wherein each of the plurality of inorganic micro light-emitting diodes has a length from 2 to 5 μιτι, 5 to 10 μιη, 10 to 20 μιη, or 20 to 50 μηι.

34. The display of any one of the preceding claims, wherein each of the plurality of inorganic micro light-emitting diodes has a height from 2 to 5 μιτι, 4 to 10 μιη, 10 to 20 μιτη, or 20 to 50 μπι.

35. The display of any one of the preceding claims, wherein a resolution of the display is 120 x 90, 1440 x 1080, 1920 x 1080, 1280 x 720, 3840 x 2160, 7680 x 4320, or 15360 x 8640.

36. The display of any one of the preceding claims, comprising a display substrate.

37. The display of claim 36, wherein the display substrate has a thickness from 5 to 10 microns, 10 to 50 microns, 50 to 100 microns, 100 to 200 microns, 200 to 500 microns, 0.5 to 1 mm, 1 mm to 5 mm, 5 mm to 10 mm, or 10 mm to 20 mm.

38. The display of claim 36 or 37, wherein the display substrate is a member selected from the group consisting of polymer, plastic, resin, polyimide, PEN, PET, metal, metal foil, glass, a semiconductor, and sapphire.

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39. The display of any one of claims 36 to 38, wherein the display substrate has a transparency greater than or equal to 50%, 80%, 90%, or 95% for visible light.

40. The display of any one of claims 36 to 39, wherein the display substrate has a contiguous display substrate area that includes the plurality of light-emitting diodes, each light-emitting diode of the plurality of light-emitting diodes has a light-emissive area, and the combined light-emissive areas of the plurality of light-emitting diodes is less than or equal to one-quarter of the contiguous display substrate area.

41. The display of claim 40, wherein the combined light-emissive areas of the plurality of light-emitting diodes is less than or equal to one eighth, one tenth, one twentieth, one fiftieth, one hundredth, one five-hundredth, one thousandth, one two-thousandth, or one ten-thousandth of the contiguous display substrate area.

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