High resolution low power consumption OLED display with extended lifetime
First Claim
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1. A full-color pixel arrangement for an OLED device, the full-color pixel arrangement comprising:
- a first sub-pixel comprising a first emissive region of a first color and having a first optical path length;
a second sub-pixel comprising a second emissive region of the first color, the second sub-pixel having a second optical path length different than the first optical path length; and
a third sub-pixel comprising a third emissive region of a second color;
wherein the full-color pixel arrangement comprises emissive regions of exactly two different colors; and
wherein the second emissive region provides emission for the second sub-pixel without any intervening color altering layers.
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Abstract
Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel.
96 Citations
23 Claims
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1. A full-color pixel arrangement for an OLED device, the full-color pixel arrangement comprising:
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a first sub-pixel comprising a first emissive region of a first color and having a first optical path length; a second sub-pixel comprising a second emissive region of the first color, the second sub-pixel having a second optical path length different than the first optical path length; and a third sub-pixel comprising a third emissive region of a second color; wherein the full-color pixel arrangement comprises emissive regions of exactly two different colors; and wherein the second emissive region provides emission for the second sub-pixel without any intervening color altering layers. - View Dependent Claims (2, 3, 4, 13, 14, 15, 16, 17, 18)
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5. A full-color pixel arrangement for an OLED device, the full-color pixel arrangement comprising:
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a first sub-pixel comprising a first emissive region of a first color and having a first optical path length, the first emissive region comprising an emissive layer containing a plurality of emissive materials disposed within the emissive layer; a second sub-pixel comprising a second emissive region of the first color, the second sub-pixel having a second optical path length different than the first optical path length; and a third sub-pixel comprising a third emissive region of a second color; wherein the full-color pixel arrangement comprises emissive regions of exactly two different colors. - View Dependent Claims (6, 7, 8, 9)
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10. A full-color pixel arrangement for an OLED device, the full-color pixel arrangement comprising:
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a first sub-pixel comprising a first emissive region of a first color and having a first optical path length; a second sub-pixel comprising a second emissive region of the first color, the second sub-pixel having a second optical path length different than the first optical path length; and a third sub-pixel comprising a third emissive region of a second color; wherein the full-color pixel arrangement comprises emissive regions of exactly two different colors; and wherein at least a first portion of the second emissive region is disposed in a stack overlapping at least a portion of the first emissive region, and wherein the stack including the first portion of the second emissive region produces white light when the stack is operated in the OLED device. - View Dependent Claims (11, 12)
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19. A method of fabricating a full-color pixel arrangement for an OLED device, the method comprising:
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fabricating a patterned layer having a pattern over a first area of a substrate, the pattern defining at least two sub-pixel regions over the substrate; depositing, via an organic vapor jet printing (OVJP) process, a first emissive material over the at least two sub-pixel regions; depositing a second emissive material over a second area of the substrate; fabricating an electrode layer over the first emissive material and the second emissive material; wherein the at least two sub-pixel regions have different optical path lengths between the substrate and the electrode layer. - View Dependent Claims (20, 21, 22, 23)
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Specification