Organic electoluminescent devices
AssigneeUniversal Display Corporation
InventorsMichael Hack, Julia J. Brown, Michael Stuart Weaver, Woo-Young So
Life of this patent
Estimating the term…
Abstract
This disclosure relates to reduced power consumption OLED displays at reduced cost for reduced information content applications, such as wearable displays. Image quality for wearable displays can be different than for high information content smart phone displays and TVs, where the wearable display has an architecture that in includes, for example, an all phosphorescent device and/or material system that may be fabricated at reduced cost. The reduced power consumption can facilitate wireless and solar charging.
Claims26
A device comprising:
- one or more solar cells;
- and
- an active-matrix driven display including a plurality of OLED pixels, wherein the power consumed by the display is less than 6 mW/cm2 when the display is operated at a luminance of at least 700 cd/m2, excluding driving circuity external to the active-matrix display.
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
A device comprising:
- one or more solar cells;
- and
- an active-matrix driven display including a plurality of OLED pixels, each OLED pixel comprising:
- not more than four sub-pixels, wherein each of the not more than four sub-pixels is a sub-pixel containing a phosphorescent material, and wherein a first sub-pixel of the not more than four sub-pixels is configured to emit blue light in a light blue range of the visible spectrum having a peak emission wavelength in the range of 465-500 nm, a second sub-pixel of the not more than four sub-pixels is configured to emit red light in a red light range of the visible spectrum having a peak emission wavelength in the range of 580-700 nm, and a third sub-pixel of the not more than four sub-pixels is configured to emit green light in a green light range of the visible spectrum having a peak emission wavelength of 500-600 nm, and
- wherein each sub-pixel of the plurality of OLED pixels that is configured to emit blue light only emits blue light in the light blue range, and wherein each pixel comprises no sub-pixels that are configured to emit deep blue light.
A display comprising a full-color pixel arrangement, the full-color pixel arrangement comprising:
- a plurality of OLED pixels, at least one sub-pixel in a pixel of the plurality of pixels comprising:
- at least one color altering layer disposed over at least a portion of the sub-pixel,
- wherein the power consumed by the display is less than 6 mW/cm2 when the display is operated at a luminance of at least 700 cd/m2, excluding driving circuitry external to the active-matrix display.
Dependencies are inferred from the claim text.