Technology for active matrix light emitting polymer displays

Shimoda, Tatsuya; Kimura, M.; Seki, Shunichi; Kobayashi, Hiroyasu; Kanbe, S.; Miyashita, Satoru; Friend, Richard H.; Burroughes, J. H.; Towns, Carl R.; Millard, I. S.

doi:10.1109/iedm.1999.823857

Cited by 7 publications

(8 citation statements)

References 1 publication

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“…Despite only red and green pixels were deposited by inkjet printing, this work was a clear precursor for the preparation of active matrix OLED (AMOLED) displays by inkjet printing technology [114,115]. …”

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

“…Beyond these initial attempts, Kobayashi and coworkers incorporated a thin film transistor (TFT) array in the substrate, as the one used in LCDs, to individually address the deposited RGB pixels. Despite only red and green pixels were deposited by inkjet printing, this work was a clear precursor for the preparation of active matrix OLED (AMOLED) displays by inkjet printing technology [ 114 , 115 ].…”

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

“…As in the case of other solution processes, the deposited materials by inkjet need to have the appropriate optical and electrical properties to fulfil the stringent demands of display applications. Focusing in the electroluminescent materials, light emitting polymers such as poly(phenylene vinylene) (PPV) derivatives, MEH-PPV for example, which are soluble in common organic solvents, have been used in the preparation of OLEDs by inkjet printing [ 114 , 116 ]. The lifetime of the emitting materials and the device itself has been crucial in the effective incorporation of OLED technology in real applications, especially critical for blue OLEDs [ 101 , 117 ].…”

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

“…The lifetime of the emitting materials and the device itself has been crucial in the effective incorporation of OLED technology in real applications, especially critical for blue OLEDs [ 101 , 117 ]. New macromolecular architectures, such as polyfluorenes and poly(spirofluorene)s, have led to solution processable materials with increased lifetime suitable for inkjet fabrication of OLEDs ( Figure 15 ) [ 114 , 116 , 118 ]. Purification of these polymeric materials is a key element to make lifetime longer in OLED materials.…”

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

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Inkjet Printing of Functional Materials for Optical and Photonic Applications

et al. 2016

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Inkjet printing, traditionally used in graphics, has been widely investigated as a valuable tool in the preparation of functional surfaces and devices. This review focuses on the use of inkjet printing technology for the manufacturing of different optical elements and photonic devices. The presented overview mainly surveys work done in the fabrication of micro-optical components such as microlenses, waveguides and integrated lasers; the manufacturing of large area light emitting diodes displays, liquid crystal displays and solar cells; as well as the preparation of liquid crystal and colloidal crystal based photonic devices working as lasers or optical sensors. Special emphasis is placed on reviewing the materials employed as well as in the relevance of inkjet in the manufacturing of the different devices showing in each of the revised technologies, main achievements, applications and challenges.

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Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

Section: Inkjet Printing Of Light Emitting Devicesmentioning

confidence: 99%

See 2 more Smart Citations

Inkjet Printing of Functional Materials for Optical and Photonic Applications

et al. 2016

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“…Since the first reported organic FET in 1983,2 there have been many on‐going efforts to form organic or polymer‐based FETs 3–6. Organic or polymer‐based transistors have already found application in smart pixels,7 electronic luggage tags,8 sensors,9 and active‐matrix light‐emitting polymer displays,10 etc.…”

Section: Introductionmentioning

confidence: 99%

Low‐Voltage All‐Polymer Field‐Effect Transistor Fabricated Using an Inkjet Printing Technique

Liu

Varahramyan

Cui

2005

Macromol. Rapid Commun.

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Summary: An all‐polymer field‐effect transistor (FET) fabricated using an inkjet printing technique is presented in this paper. Poly(3,4‐ethylenedioxythiophene) works as the source/drain/gate electrode material because of its good conductivity. Polypyrrole acts as the semiconducting layer. Poly(vinyl pyrrolidone) K60, an insulating polymer with a dielectric constant of 60, operates as the dielectric layer. All the polymers are diluted with deionized water, and can be printed with a piezoelectric inkjet printing system. The device functions at a depletion mode with low operation voltage. It has a field‐effect mobility of 0.1 cm2 · V−1 · s−1, an on/off ratio of 2.9 × 103, and a subthreshold slope of 2.81 V · decade−1.Schematic of the all‐polymer FET synthesized here.imageSchematic of the all‐polymer FET synthesized here.

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Controlling Profiles of Polymer Dots by Switching between Evaporation and Condensation

et al. 2010

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We found that the profiles of the dots formed from the drying droplets of polymer solution can be modified by switching between the evaporation and condensation processes. When a polymer dot is exposed to solvent vapor during a certain time and is dried again, the dot profile changes from ringlike to flat. To obtain a flat dot, there exists an optimal exposure time. We conjecture that the change of the dot profile is due to the refluidization of the polymer film. Our results imply a new possibility for controlling the dot profile in inkjet printing technologies.

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Technology for active matrix light emitting polymer displays

Cited by 7 publications

References 1 publication

Inkjet Printing of Functional Materials for Optical and Photonic Applications

Inkjet Printing of Functional Materials for Optical and Photonic Applications

Low‐Voltage All‐Polymer Field‐Effect Transistor Fabricated Using an Inkjet Printing Technique

Controlling Profiles of Polymer Dots by Switching between Evaporation and Condensation

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