Organic electroluminescent devices
Devices, arrangements, and techniques are provided to improve the color saturation of displays such as OLED displays while avoiding or substantially reducing any increase in power consumption that typically would be associated with such increase in saturation. A three-subpixel per pixel red/green/blue (RGB) architecture is provided as well as a four sub-pixel approach which uses two red sub-pixels for each pixel (red/red/green/blue, or R1R2GB).
1. A device comprising:
a full-color organic display panel comprising a plurality of pixels, at least one of the plurality of pixels comprising:
a red sub-pixel having 1931 CIE coordinates (Rx, Ry);
a green sub-pixel having 1931 CIE coordinates (Gx, Gy); and
a blue sub-pixel;
wherein the product
(0.75−Rx)(Ry−0.25)(Gy−0.5)(0.4−Gx)(10 4 )
is at least 1.50; and
wherein the color gamut enabled by the RGB colors emitted by the at least one pixel is at least equal to 100% of the area of the DCI-P3 color gamut based on 1931 CIE coordinates.
2. The device of claim 1 , wherein the plurality of pixels comprise organic light emitting diodes (OLEDs), micro light emitting diode (microLED) devices, quantum dot devices, or a combination thereof.
3. The device of claim 1 , wherein the product
(0.75−Rx)(Ry−0.25)(Gy−0.5)(0.4−Gx)(10 4 )
is at least 1.60.
4. The device of claim 1 , wherein the product
(0.75−Rx)(Ry−0.25)(Gy−0.5)(0.4−Gx)(10 4 )
is at least 1.80.
5. The device of claim 1 , wherein the display panel is capable of operating with a color gamut equivalent to at least 95% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 6.85 mW/cm 2 at 500 nits luminance.
6. The device of claim 5 , wherein the display panel is capable of operating with a color gamut equivalent to at least 95% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 5.78 mW/cm 2 at 500 nits luminance.
7. The device of claim 1 , wherein the display panel is capable of operating with a color gamut equivalent to at least 90% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 6 mW/cm 2 at 500 nits luminance.
8. The device of claim 1 , wherein the display panel is capable of operating with a color gamut equivalent to at least 80% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 5 mW/cm 2 at 500 nits luminance.
9. A consumer electronic device comprising:
a full-color organic display panel comprising a plurality of pixels, at least one of the plurality of pixels comprising:
a red sub-pixel having 1931 CIE coordinates (Rx, Ry);
a green sub-pixel having 1931 CIE coordinates (Gx, Gy); and
a blue sub-pixel;
wherein the product
(0.75−Rx)(Ry−0.25)(Gy−0.5)(0.4−Gx)(10 4 )
is at least 1.5 at least 1.50; and
wherein the color gamut enabled by the RGB colors emitted by the at least one pixel is at least equal to 100% of the area of the DCI-P3 color gamut based on 1931 CIE coordinates.
10. The consumer electronic device of claim 9 , wherein the device is at least one type selected from the group consisting of: a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, a light for interior or exterior illumination and/or signaling, a heads-up display, a fully or partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a telephone, a cell phone, tablet, a phablet, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro-display that is less than 2 inches diagonal, a 3-D display, a virtual reality or augmented reality display, a vehicle, a video walls comprising multiple displays tiled together, a theater or stadium screen, and a sign.
11. The device of claim 10 , wherein the plurality of pixels comprise organic light emitting diodes (OLEDs), micro light emitting diode (microLED) devices, or a combination thereof.
12. The device of claim 1 , wherein the product
(0.75−Rx)(Ry−0.25)(Gy−0.5)(0.4−Gx)(10 4 )
is at least 2.00.
13. The device of claim 10 , wherein the plurality of pixels comprise quantum dot devices.
14. A device comprising:
a full-color organic display panel comprising a plurality of pixels, at least one of the plurality of pixels comprising:
a red sub-pixel;
a green sub-pixel; and
a blue sub-pixel;
wherein the color gamut enabled by the RGB colors emitted by the at least one pixel is at least equal to 100% of the area of the DCI-P3 color gamut based on 1931 CIE coordinates and wherein the display panel is capable of operating with a color gamut equivalent to at least 80% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 5 mW/cm 2 at 500 nits luminance.
15. The device of claim 14 wherein the display panel is capable of operating with a color gamut equivalent to at least 90% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 6 mW/cm 2 at 500 nits luminance.
16. The device of claim 15 , wherein the display panel is capable of operating with a color gamut equivalent to at least 95% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 5.78 mW/cm 2 at 500 nits luminance.
17. The device of claim 15 , wherein the display panel is capable of operating with a color gamut equivalent to at least 95% of the Rec2020 1931 CIE color gamut with a power consumption of not more than 6.85 mW/cm 2 at 500 nits luminance.
18. The device of claim 14 , wherein the plurality of pixels comprise organic light emitting diodes (OLEDs).
19. The device of claim 14 , wherein the plurality of pixels comprise micro light emitting diode (microLED) devices.
20. The device of claim 14 , wherein the plurality of pixels comprise quantum dot devices.