PIXEL ARRANGEMENT COMPRISING A PEROVSKITE LIGHT EMITTING DIODE

1 . A pixel arrangement for a display, the arrangement comprising a plurality of pixels, each pixel comprising:

a first sub-pixel configured to emit a first colour of light, the first sub-pixel comprising a perovskite light emitting diode;

a second sub-pixel configured to emit a second colour of light that is different from the first colour of light; and

a third sub-pixel configured to emit a third colour of light that is different from the first and second colour of light,

wherein the second sub-pixel comprises a perovskite light emitting diode (PeLED), an organic light emitting diode (OLED) or a quantum dot light emitting diode (QLED), and the third sub-pixel comprises a PeLED, an OLED or a QLED.

2 . The pixel arrangement of claim 1 , wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises a PeLED.

3 . The pixel arrangement of claim 1 , wherein at least one of the second sub-pixel and the third sub-pixel comprises an OLED or a QLED.

4 . The pixel arrangement of claim 1 , wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises an OLED or a QLED.

5 . The pixel arrangement of claim 3 , wherein the second sub-pixel comprises a PeLED or an OLED, and the third sub-pixel comprises a PeLED or an OLED, and at least one of the second sub-pixel and the third sub-pixel comprises an OLED.

6 . The pixel arrangement of claim 5 , wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises an OLED.

7 . The pixel arrangement of claim 5 , wherein the second sub-pixel comprises an OLED, and the third sub-pixel comprises an OLED.

8 . The pixel arrangement of claim 3 , wherein the second sub-pixel comprises a PeLED or a QLED, and the third sub-pixel comprises a PeLED or a QLED, and at least one of the second sub-pixel and the third sub-pixel comprises a QLED.

9 . The pixel arrangement of claim 8 , wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises a QLED.

10 . The pixel arrangement of claim 8 , wherein the second sub-pixel comprises a QLED, and the third sub-pixel comprises a QLED.

11 . The pixel arrangement of claim 3 , wherein the second sub-pixel comprises an OLED and the third sub-pixel comprises a QLED.

12 . The pixel arrangement of any one of the preceding claims, wherein one of the first, second and third sub-pixels emits red light;

one of the first, second and third sub-pixels emits green light; and

one of the first, second and third pixels emits blue light.

13 . The pixel arrangement of claim 12 , wherein

one of the first, second and third sub-pixels emits red light with CIE 1931 x coordinate greater than or equal to 0.680;

one of the first, second and third sub-pixels emits green light with CIE 1931 y coordinate greater than or equal to 0.690; and

one of the first, second and third sub-pixels emits blue light with CIE 1931 y coordinate less than or equal to 0.060.

14 . The pixel arrangement of claim 12 , wherein

one of the first, second and third sub-pixels emits red light with CIE 1931 x coordinate greater than or equal to 0.708;

one of the first, second and third sub-pixels emits green light with CIE 1931 y coordinate greater than or equal to 0.797; and

one of the first, second and third sub-pixels emits blue light with CIE 1931 y coordinate less than or equal to 0.046.

15 . The pixel arrangement of any one of the preceding claims, wherein each of the first, second and third sub-pixels have the same surface area.

16 . The pixel arrangement of any one of claims 1 to 14 , wherein at least one of the first, second and third sub-pixels has a surface area different from another of the first, second and third sub-pixels.

17 . The pixel arrangement of any one of the preceding claims, wherein the pixel arrangement further comprises a fourth sub-pixel configured to emit a fourth colour of light that is different from the first, second and third colour of light, the fourth sub-pixel comprising a PeLED, an OLED or a QLED.

18 . The pixel arrangement of any one of the preceding claims, wherein one or more of the PeLEDs comprise organic metal halide light-emitting perovskite material.

19 . The pixel arrangement of any one of the preceding claims, wherein one or more of the PeLEDs comprise inorganic metal halide light-emitting perovskite material.

20 . A display comprising the pixel arrangement of any one of the preceding claims.

21 . The display of claim 20 , wherein each of the sub-pixels include a microcavity structure.

22 . The display of claim 20 , wherein at least one of sub-pixels includes a microcavity structure.

23 . The display of any one of claims 20 to 22 , wherein each of the sub-pixels include a colour altering layer.

24 . The display of any one of claims 20 to 22 , wherein at least one of the sub-pixels includes a colour altering layer.

25 . The display of any one of claims 20 to 24 , wherein the display is a flexible structure.

26 . The display of any one of claims 20 to 25 , wherein the display is part of a consumer product.

27 . The display of any one of claims 20 to 26 , wherein the display is capable of rendering the DCI-P3 colour gamut.

28 . The display of any one of claims 20 to 26 , wherein the display is capable of rendering the Rec. 2020 colour gamut.