11‐3: 2,400ppi RGB Side‐by‐Side OLED Micro‐Display for AR Applications

Kim, Chiwoo; Jung, Jae Hoon; Sung, Dong; Park, Jae Seok; Park, Jong Kab; Kim, Tae‐Kyung; Kim, Doh Hoon; Jung, Kiro

doi:10.1002/sdtp.14628

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Direct R-G-B microdisplay with 2645 ppi pixel density has been demonstrated by an ultrafine shadow mask made by a dielectric membrane [3]. Laser drilling technology has also shown a metal mask with a pixel density of 2400 ppi [4]. However, further developments are crucial to tackling the technology challenges, i.e., mask cleaning and ultrahigh precision mask alignment in a vacuum OLED deposition system.…”

Section: Introductionmentioning

confidence: 99%

59‐1: Invited Paper: Scaling Down of OLED Pixels Enabled by Photolithography

Singh²,

Tankut

et al. 2022

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This paper discusses the advantages of OLEDs in pixel scaling and the novel device structures enabled by photolithography. We show the pixel layouts that can be realized by photolithographic patterning, i.e., delta and color strip pixel layout with high pixel density. Further integration of OPD next to an OLED pixel is discussed. Finally, we show the OLED performance after three times OLED patterning steps, which is crucial for the full‐color OLED display realized by photolithography patterning processes. The results suggest that the photolithography patterning process could be a powerful method to further enhance the AMOLED display performance.

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Section: Introductionmentioning

confidence: 99%

59‐1: Invited Paper: Scaling Down of OLED Pixels Enabled by Photolithography

Singh²,

Tankut

et al. 2022

Symp Digest of Tech Papers

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“…C olor tunable light emitting devices (LEDs) provide numerous advantages for displays 1,2 and lightings. 3,4 Color tunable LEDs covering the full visible spectrum reduce a significant amount of process complexity required for side-byside RGB pixels, 5,6 a major challenge facing modern microdisplay technology. Circadian lightings that require color shift from warm to cool white may instead utilize color tunable LEDs for facile fabrication.…”

mentioning

confidence: 99%

“…Color tunable light emitting devices (LEDs) provide numerous advantages for displays , and lightings. , Color tunable LEDs covering the full visible spectrum reduce a significant amount of process complexity required for side-by-side RGB pixels, , a major challenge facing modern microdisplay technology. Circadian lightings that require color shift from warm to cool white may instead utilize color tunable LEDs for facile fabrication. , Thus, various approaches have been developed for tuning the emission spectrum of LEDs, such as stacked tandem structure, voltage dependence emission, − and alternating current (AC) driven light emitting devices .…”

mentioning

confidence: 99%

A Color-Tunable Alternating Current Organic Light Emitting Capacitor

et al. 2023

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We demonstrate an alternating current (AC) driven light emitting capacitor in which the color of the emission spectra can be changed via an applied AC frequency. The device has a simple metal-oxide-semiconductor (MOS) capacitor structure with an organic emissive layer, enabling facile fabrication processing. The organic emissive layer comprises a thin, submonolayer low energy dye layer underneath a thick host matrix (∼30 nm) with higher energy emitting dyes. The emission of the lower energy dyes dominates at low frequency, while the higher energy emission of the host matrix dominates at high frequency. This simple color tunable device could be used for full-color displays and lighting in the future.

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