Flexible active‐matrix OLED displays: Challenges and progress

Ma, Ruiqing; Hewitt, Richard; Rajan, Kamala; Silvernail, Jeff; Urbanik, Ken; Hack, M.; Brown, Julie J.

doi:10.1889/1.2835025

Cited by 24 publications

(13 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Organic semiconductors developed for OLEDs and OPDs have been primarily applied to display and photovoltaic technologies 17,18 . This is due to their potential for large-area roll-to-roll manufacturing at large volumes, which is enabled by solution processing and the use of flexible substrates 19 .…”

mentioning

confidence: 99%

All-organic optoelectronic sensor for pulse oximetry

et al. 2014

View full text Add to dashboard Cite

Pulse oximetry is a ubiquitous non-invasive medical sensing method for measuring pulse rate and arterial blood oxygenation. Conventional pulse oximeters use expensive optoelectronic components that restrict sensing locations to finger tips or ear lobes due to their rigid form and area-scaling complexity. In this work, we report a pulse oximeter sensor based on organic materials, which are compatible with flexible substrates. Green (532 nm) and red (626 nm) organic light-emitting diodes (OLEDs) are used with an organic photodiode (OPD) sensitive at the aforementioned wavelengths. The sensor's active layers are deposited from solution-processed materials via spin-coating and printing techniques. The all-organic optoelectronic oximeter sensor is interfaced with conventional electronics at 1 kHz and the acquired pulse rate and oxygenation are calibrated and compared with a commercially available oximeter. The organic sensor accurately measures pulse rate and oxygenation with errors of 1% and 2%, respectively.

show abstract

mentioning

confidence: 99%

All-organic optoelectronic sensor for pulse oximetry

et al. 2014

View full text Add to dashboard Cite

show abstract

“…We found that the device has no significant degradation of the image under bending. [18,19,20] These results indicate that flexible PLED on CPI substrate has a high potential for its application as flexible display.…”

Section: Resultsmentioning

confidence: 94%

Solution Processed PLED on Transparent Plastic Substrate for Flexible Display

Kim

Jang

Jung

et al. 2014

Molecular Crystals and Liquid Crystals

View full text Add to dashboard Cite

We have fabricated the flexible organic light-emitting diode (OLED) displays on 10 µm colorless polyimide (CPI) substrate using polymer light-emitting diode (PLED). The CPI was chosen as a substrate for flexible device because of its high transparency of around 90% at 550 nm and relatively high temperature process of >300 • C. All organic materials for OLED were deposited by spin coating technique and the OLED on PI substrate was encapsulated by the polyethylene terephthalate (PET) film with barrier layer. The PLEDs have a driving voltage of 3 V at 1000 cd/m 2 , and the current efficiency of 11.7 cd/A for the device on CPI substrate at 1000 cd/m 2 .

show abstract

“…To further protect and ruggedize a flexible OLED display, an adhesive material and process has also been developed to laminate a protective anti-reflective hardcoat film over the thin-film-encapsulated flexible OLED, 8 as shown in Fig. 5.…”

Section: Conformal Packagingmentioning

confidence: 99%