OLED Manufacturing on Flexible Substrates Towards Roll-to-Roll

MRS Advances ◽  
2019 ◽  
Vol 4 (24) ◽  
pp. 1367-1375 ◽  
Author(s):  
Dongxiang Wang ◽  
Jacqueline Hauptmann ◽  
Christian May
Keyword(s):  
High Throughput ◽  
Present Status ◽  
Manufacturing Cost ◽  
Flexible Substrates ◽  
Large Area ◽  
Thin Glass ◽  
Production Capability ◽  
Roll To Roll ◽  
Pet Film

ABSTRACTLarge area lighting OLEDs manufactured in a Roll-to-Roll (R2R) fashion enable the well-longed production capability with considerably high throughput based on flexible substrates, hence largely reduced OLED manufacturing cost. This paper will outline the present status of R2R OLED fabrication on ultra-thin glass with the focus on transparent OLED devices and how to perform segmentation by printing of silver- and dielectric pastes. Ultra-thin glass (UTG) is laminated on a PET film to avoid fabrication interruptions when glass cracks occur during the Roll-to-Roll process. The R2R fabricated flexible OLEDs also show key-values comparable to conventional OLEDs fabricated on small rigid glass in lab-scale.

An Investigation onto Polydimethylsiloxane (PDMS) Printing Plate of Multiple Functional Solid Line by Flexographic

2013 ◽  
Vol 844 ◽  
pp. 158-161 ◽  
Author(s):  
M.I. Maksud ◽  
Mohd Sallehuddin Yusof ◽  
M. Mahadi Abdul Jamil
Keyword(s):  
Laser Ablation ◽  
Line Width ◽  
High Speed ◽  
Printed Electronics ◽  
Low Cost ◽  
Flexible Substrates ◽  
Large Area ◽  
Printing Plate ◽  
Roll To Roll ◽  
Printing Processes

Recently low cost production is vital to produce printed electronics by roll to roll manufacturing printing process like a flexographic. Flexographic has a high speed technique which commonly used for printing onto large area flexible substrates. However, the minimum feature sizes achieved with roll to roll printing processes, such as flexographic is in the range of fifty microns. The main contribution of this limitation is photopolymer flexographic plate unable to be produced finer micron range due to film that made by Laser Ablation Mask (LAMs) technology not sufficiently robust and consequently at micron ranges line will not be formed on the printing plate. Hence, polydimethylsiloxane (PDMS) is used instead of photopolymer. Printing trial had been conducted and multiple solid lines successfully printed for below fifty microns line width with no interference between two adjacent lines of the printed images.

Using Ultraprecision Machining to Fabricate LED Packaging Exhibiting High Luminous Intensity

2019 ◽  
Vol 13 (3) ◽  
pp. 397-406
Author(s):  
Ding-Chin Chou ◽  
Shang-Hui Yang ◽  
Jian-Shian Lin ◽  
Fuh-Shyang Juang ◽  
Yoshimi Takeuchi ◽  
...  
Keyword(s):  
Luminous Intensity ◽  
Ultraprecision Machining ◽  
Large Area ◽  
Phosphor Layer ◽  
Precise Control ◽  
Roll To Roll ◽  
Color Uniformity ◽  
Phosphor Film ◽  
Control Light ◽  
Pet Film

In this study, a phosphor was coated on a microstructured film to achieve light control. This process resulted in a large-area phosphor film and enabled the microstructure to be packaged directly into the LED body. Thus, the LEDs retain their air and water barrier functions, control light, achieve higher forward luminous intensity, and have a wider scope of applications. Roll-to-roll processing was performed to mold a microstructure and phosphor on polyethylene terephthalate (PET) film by applying ultraviolet light. This approach expedited the preparation of a large-area phosphor film and enabled the precise control of the thickness and evenness of the phosphor layer, thus ensuring uniform light distribution and eliminating the yellow halo within the light body induced by the uneven thickness of the phosphor layer. The experimental results revealed that the luminous intensity of the LED to which the microstructured PET film was attached at 0° (center) increased by 11.88% relative to the luminous intensity of the LED without the film. Moreover, at 30° to −30°, the luminous intensity of the LED with the film improved by 10.36%. Therefore, the device retained its color uniformity and achieved higher forward luminous intensity.

scholarly journals Large‐Area Uniform Polymer Transistor Arrays on Flexible Substrates: Towards High‐Throughput Sensor Fabrication

2020 ◽  
Vol 5 (8) ◽  
pp. 2000390
Author(s):  
Andrew M. Zeidell ◽  
David S. Filston ◽  
Matthew Waldrip ◽  
Hamna F. Iqbal ◽  
Hu Chen ◽  
...  
Keyword(s):  
High Throughput ◽  
Flexible Substrates ◽  
Large Area ◽  
Sensor Fabrication

Photo-curable resists for inkjet dispensing applied in large area and high throughput roll-to-roll nanoimprint processes

2014 ◽  
Vol 123 ◽  
pp. 121-125 ◽  
Author(s):  
M.W. Thesen ◽  
S. Ruttloff ◽  
R.P.F. Limberg ◽  
M. Vogler ◽  
D. Nees ◽  
...  
Keyword(s):  
High Throughput ◽  
Large Area ◽  
Roll To Roll

Hologram Images Patterned in Shrink BOPP Film by Large-Area Roller Nanoimprint Lithography

2013 ◽  
Vol 873 ◽  
pp. 503-506 ◽  
Author(s):  
Meng Lin Jiang ◽  
Shi Wei Lin ◽  
Wen Kai Jiang
Keyword(s):  
Formation Mechanism ◽  
High Throughput ◽  
Nanoimprint Lithography ◽  
Low Cost ◽  
Nanometer Scale ◽  
Flexible Substrates ◽  
Large Area ◽  
Biaxially Oriented Polypropylene ◽  
Oriented Polypropylene ◽  
Lithography Technique

Thermal roller nanoimprint lithography with the ability of larger area micro-to nanometer-scale patterning on flexible substrates possesses the advantages of low cost and high throughput, and is widely being practiced in industry. Hologram images have been successfully embossed in shrink biaxially oriented polypropylene films by the large-area roller nanoimprint lithography technique. The defects which occur during embossing processes have been studied in order to identify the underlying formation mechanism.

scholarly journals High Throughput Roll-to-Roll Production of Microfluidic Chips

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1054
Author(s):  
Martin Smolka ◽  
Stephan Ruttloff ◽  
Dieter Nees ◽  
Christine Prietl ◽  
Valentin Satzinger ◽  
...  
Keyword(s):  
High Throughput ◽  
Inorganic Ions ◽  
Soil Nutrient ◽  
Microfluidic Chips ◽  
Large Area ◽  
Nutrient Analysis ◽  
Roll To Roll ◽  
Large Numbers ◽  
Set Up

A high throughput manufacturing process of microfluidic chips based on Roll-to-Roll imprinting is presented. With this procedure, microfluidic patterns can be produced on large area polymer substrates. The subsequent steps of inlet drilling, bonding and electrode printing are set-up on large area processes, too. Overall, this strategy allows highly parallelized processing of large numbers of chips—all costly steps of individual chip handling are avoided. The chips were used for the characterization of inorganic ions for soil nutrient analysis.

Inkjetable and photo-curable resists for large-area and high-throughput roll-to-roll nanoimprint lithography

2014 ◽  
Vol 13 (4) ◽  
pp. 043003 ◽  
Author(s):  
Manuel W. Thesen ◽  
Dieter Nees ◽  
Stephan Ruttloff ◽  
Maximilian Rumler ◽  
Mathias Rommel ◽  
...  
Keyword(s):  
High Throughput ◽  
Nanoimprint Lithography ◽  
Large Area ◽  
Roll To Roll

scholarly journals Electronic Skin from High-Throughput Fabrication of Intrinsically Stretchable Lead Zirconate Titanate Elastomer

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Yiming Liu ◽  
Huanxi Zheng ◽  
Ling Zhao ◽  
Shiyuan Liu ◽  
Kuanming Yao ◽  
...  
Keyword(s):  
High Throughput ◽  
Lead Zirconate Titanate ◽  
Sensor Arrays ◽  
Lead Zirconate ◽  
Advanced Materials ◽  
Tactile Sensing ◽  
Manufacturing Cost ◽  
Large Area ◽  
Electronic Skin ◽  
Zirconate Titanate

Electronic skin made of thin, soft, stretchable devices that can mimic the human skin and reconstruct the tactile sensation and perception offers great opportunities for prosthesis sensing, robotics controlling, and human-machine interfaces. Advanced materials and mechanics engineering of thin film devices has proven to be an efficient route to enable and enhance flexibility and stretchability of various electronic skins; however, the density of devices is still low owing to the limitation in existing fabrication techniques. Here, we report a high-throughput one-step process to fabricate large tactile sensing arrays with a sensor density of 25 sensors/cm2 for electronic skin, where the sensors are based on intrinsically stretchable piezoelectric lead zirconate titanate (PZT) elastomer. The PZT elastomer sensor arrays with great uniformity and passive-driven manner enable high-resolution tactile sensing, simplify the data acquisition process, and lower the manufacturing cost. The high-throughput fabrication process provides a general platform for integrating intrinsically stretchable materials into large area, high device density soft electronics for the next-generation electronic skin.

Enabling large area and high throughput roll-to-roll NIL by novel inkjetable and photo-curable NIL resists

2014 ◽  
Author(s):  
Manuel W. Thesen ◽  
Maximilian Rumler ◽  
Florian Schlachter ◽  
Susanne Grützner ◽  
Christian Moormann ◽  
...  
Keyword(s):  
High Throughput ◽  
Large Area ◽  
Roll To Roll
Sign in / Sign up

Export Citation Format

Share Document