DOI: 10.1063/1.371428. Transparent stacked organic light emitting devices. II. Device performance and applications to displays

Transparent stacked organic light emitting devices. II. Device performance and applications to displays

10.1063/1.371428

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Vertical stacking of organic light emitting devices (OLEDs) that emit the three primary colors is shown to be a means for achieving efficient and bright full-color displays. In Paper I, we addressed stacked OLED (SOLED) design and fabrication principles to optimize emission colors, operating voltage, and efficiency. Here, we present results on two different (metal-containing and metal-free cathode) SOLED structures that exhibit performance suitable for many full-color display applications. The operating voltages at 10 mA/cm2 (corresponding to video display brightnesses) are 6.8, 8.5, and 12.1 V for the red (R), green (G), and blue (B) elements of the metal-containing SOLED, respectively. The respective subpixel luminous efficiencies are 0.53, 1.44, and 1.52 cd/A, and the Commission Internationale de L’Éclairage (CIE) chromaticity coordinates are (0.72, 0.28), (0.42, 0.56), and (0.20, 0.22). In the high transparency metal-free SOLED, an insulating layer was inserted between the two upper subpixels to allow for independent grounding of all color emitters in the stack. At operating voltages of 12–14 V, video display brightnesses were achieved with luminous efficiencies of 0.35, 1.36, and 1.05 cd/A for the R, G, and B subpixels, respectively. The respective CIE coordinates for R, G, and B emissions are (0.72, 0.28), (0.26, 0.63), and (0.17, 0.28) in the normal viewing direction, shifting inperceptibly as the viewing angle is increased to as large as 60°. Finally, we discuss addressing schemes of SOLED displays, and compare them with other strategies for achieving full-color, OLED-based displays.

Bibliography

Gu, G., Parthasarathy, G., Tian, P., Burrows, P. E., & Forrest, S. R. (1999). Transparent stacked organic light emitting devices. II. Device performance and applications to displays. Journal of Applied Physics, 86(8), 4076â4084.

Authors 5

G. Gu (first)
G. Parthasarathy (additional)
P. Tian (additional)
P. E. Burrows (additional)
S. R. Forrest (additional)

References 20 Referenced 45

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Dates

Type	When
Created	23 years ago (July 26, 2002, 8:35 a.m.)
Deposited	1 year, 6 months ago (Feb. 11, 2024, 2:39 a.m.)
Indexed	4 months, 2 weeks ago (April 2, 2025, 6:04 a.m.)
Issued	25 years, 10 months ago (Oct. 15, 1999)
Published	25 years, 10 months ago (Oct. 15, 1999)
Published Print	25 years, 10 months ago (Oct. 15, 1999)

Funders 0

None

BibTeX

@article{Gu_1999, title={Transparent stacked organic light emitting devices. II. Device performance and applications to displays}, volume={86}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.371428}, DOI={10.1063/1.371428}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Gu, G. and Parthasarathy, G. and Tian, P. and Burrows, P. E. and Forrest, S. R.}, year={1999}, month=oct, pages={4076–4084} }

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