# US 2021/0242418 A1 · Pixel arrangement comprising a perovskite light emitting diode > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242418 A1 - Document ID: US20210242418A1 - Status: Published application - Kind: A1 - Application number: 17/049,423 - Filed: 2019-04-16 - Published: 2021-08-05 - Earliest claimed: 2018-04-21 - Assignees: Peroled Co., Ltd. - Applicants: Peroled Limited - Inventors: Peter LEVERMORE - Web page: https://patentgrep.com/patent/US20210242418A1 ## CPC - H10K 59/35: comprising red-green-blue [RGB] subpixels - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 50/115: comprising active inorganic nanostructures, e.g. luminescent quantum dots - H10K 50/135: comprising mobile ions - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/876: {comprising a resonant cavity structure, e.g. Bragg reflector pair} - H10K 77/111: {Flexible substrates} - H10K 85/30: Coordination compounds - H10K 85/50: Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 - H10K 2102/311: {Flexible OLED} - Y02E 10/549: Organic PV cells - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A pixel arrangement for a display is provided. The pixel arrangement comprises a plurality of sub-pixels. At least one sub-pixel comprises a perovskite light emitting diode. In one embodiment, a first sub-pixel is configured to emit a first colour of light, and includes a perovskite light emitting diode. A second sub-pixel is configured to emit a second colour of light that is different from the first colour, and a third sub-pixel is configured to emit a third colour of light that is different from the first and second colour. The second sub-pixel comprises a perovskite light emitting diode, an organic light emitting diode or a quantum dot light emitting diode. The third sub-pixel comprises a perovskite light emitting diode, an organic light emitting diode or a quantum dot light emitting diode. ## Claims ### Claim 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. ### Claim 2 (depends on 1) The pixel arrangement of claim 1, wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises a PeLED. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 3) 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. ### Claim 6 (depends on 5) The pixel arrangement of claim 5, wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises an OLED. ### Claim 7 (depends on 5) The pixel arrangement of claim 5, wherein the second sub-pixel comprises an OLED, and the third sub-pixel comprises an OLED. ### Claim 8 (depends on 3) 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. ### Claim 9 (depends on 8) The pixel arrangement of claim 8, wherein the second sub-pixel comprises a PeLED and the third sub-pixel comprises a QLED. ### Claim 10 (depends on 8) The pixel arrangement of claim 8, wherein the second sub-pixel comprises a QLED, and the third sub-pixel comprises a QLED. ### Claim 11 (depends on 3) The pixel arrangement of claim 3, wherein the second sub-pixel comprises an OLED and the third sub-pixel comprises a QLED. ### Claim 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. ### Claim 13 (depends on 12) 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. ### Claim 14 (depends on 12) 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. ### Claim 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. ### Claim 16 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14) 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. ### Claim 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. ### Claim 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. ### Claim 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. ### Claim 20 A display comprising the pixel arrangement of any one of the preceding claims. ### Claim 21 (depends on 20) The display of claim 20, wherein each of the sub-pixels include a microcavity structure. ### Claim 22 (depends on 20) The display of claim 20, wherein at least one of sub-pixels includes a microcavity structure. ### Claim 23 (depends on 20, 21, 22) The display of any one of claims 20 to 22, wherein each of the sub-pixels include a colour altering layer. ### Claim 24 (depends on 20, 21, 22) The display of any one of claims 20 to 22, wherein at least one of the sub-pixels includes a colour altering layer. ### Claim 25 (depends on 20, 21, 22, 23, 24) The display of any one of claims 20 to 24, wherein the display is a flexible structure. ### Claim 26 (depends on 20, 21, 22, 23, 24, 25) The display of any one of claims 20 to 25, wherein the display is part of a consumer product. ### Claim 27 (depends on 20, 21, 22, 23, 24, 25, 26) The display of any one of claims 20 to 26, wherein the display is capable of rendering the DCI-P3 colour gamut. ### Claim 28 (depends on 20, 21, 22, 23, 24, 25, 26) The display of any one of claims 20 to 26, wherein the display is capable of rendering the Rec. 2020 colour gamut.