scholarly journals TransPrint: A Method for Fabricating Flexible Transparent Free-Form Displays

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Walther Jensen ◽  
Ashley Colley ◽  
Jonna Häkkilä ◽  
Carlos Pinheiro ◽  
Markus Löchtefeld
Keyword(s):  
Best Practices ◽  
Rapid Prototyping ◽  
Inkjet Printing ◽  
Screen Printing ◽  
Free Form ◽  
Assembly Process ◽  
Broad Applicability ◽  
Require Power

TransPrint is a method for fabricating flexible, transparent free-form displays based on electrochromism. Using screen-printing or inkjet printing of electrochromic ink, plus a straightforward assembly process, TransPrint enables rapid prototyping of displays by nonexperts. The displays are nonlight-emissive and only require power to switch state and support the integration of capacitive touch sensing for interactivity. We present instructions and best practices on how to design and assemble the displays and discuss the benefits and shortcomings of the TransPrint approach. To demonstrate the broad applicability of the approach, we present six application prototypes.

The Study on Color Quality Attributes of IMR with PET on White Ink by UV Inkjet

2014 ◽  
Vol 1004-1005 ◽  
pp. 799-802 ◽  
Author(s):  
Chang Lang Chen ◽  
Yu Tung Chang ◽  
Sheng Hao Taso ◽  
Weichieh Hsu
Keyword(s):  
Inkjet Printing ◽  
Screen Printing ◽  
Quality Attributes ◽  
Gravure Printing ◽  
Printing Process ◽  
Color Quality ◽  
Study Results ◽  
Color Differences ◽  
Pet Film ◽  
Better Than

The In-Mold Roller is a revolutionary printing process by which objects are 3D decorated. Products decorated by In-Mold Roller are waterproof and protected from fading. What’s more, these kinds of decorations strongly increase the beauty, desirability and value of the objects. The In-Mold Roller is now using either of gravure printing and screen printing to print PET film. However, there are some problems with these two techniques. This research is to investigate potential usages of combining In-Mold Roller with digital UV inkjet printing in 3D decoration, e.g. in personalized printing services. Study results found that when the coverage and the resolution of inkjet printing become higher, the SIDs will become higher as well. When transferred to ABS, SIDs in each combination will increase. Each combination of inkjet conditions, with the isolation of white ink, color differences are less variant. TVIs of white ink decrease 30% to 40% halftone and display in “M” type. In print contrast, C and K colors of each combination are better than M and Y colors. After transferred into print contrast, each combination of PC will be higher about 2 to5. When transferred to ABS, color variances of each combination are not huge, and color differences are about 3to5.

Rapid prototyping of force/pressure sensors using 3D- and inkjet-printing

2018 ◽  
Vol 28 (10) ◽  
pp. 104002 ◽  
Author(s):  
L-M Faller ◽  
W Granig ◽  
M Krivec ◽  
A Abram ◽  
H Zangl
Keyword(s):  
Rapid Prototyping ◽  
Inkjet Printing ◽  
Pressure Sensors ◽  
Force Pressure

The Study on Color Print Quality Attributes of In-Mold Roller Using Digital Inkjet Printing

2012 ◽  
Vol 262 ◽  
pp. 340-344 ◽  
Author(s):  
Chang Lang Chen ◽  
Mei Chun Lo ◽  
Yun Ti Su ◽  
Yu Tung Chang
Keyword(s):  
Inkjet Printing ◽  
Screen Printing ◽  
Print Quality ◽  
Gravure Printing ◽  
Color Gamut ◽  
Printing Process ◽  
Study Results ◽  
Pet Film ◽  
Printing Processes ◽  
Potential Use

The In-Mold Roller is a revolutionary printing process by which objects are 3D decorated. The products decorated by In-Mold Roller are protected from water and fading. These kinds of decorations strongly increase the beauty, desirability and value of the objects. The In-Mold Roller is now using either of gravure printing and screen printing to print PET film. However, there are some problems with these two techniques. This research is to investigate the potential use of combining In-Mold Roller with digital inkjet printing in 3D decoration, e.g. in personalized printing services. The study results found show that digital inkjet printing to the PET film and then transfer to the ABS, the solid ink densities (SIDs) of primaries would increase. The tone values increases (TVIs) from highlight and middle (around 0~60%) were generally higher than those in shadows. The shapes and sizes of color gamut were also varied according to different kinds of digital UV inkjet printing processes. Moreover, after transferred, the color gamut became smaller.

Low-cost and rapid prototyping of microfluidic paper-based analytical devices by inkjet printing of permanent marker ink

RSC Advances ◽  
2015 ◽  
Vol 5 (7) ◽  
pp. 4770-4773 ◽  
Author(s):  
Chunxiu Xu ◽  
Longfei Cai ◽  
Minghua Zhong ◽  
Shuyue Zheng
Keyword(s):  
Rapid Prototyping ◽  
Inkjet Printing ◽  
Filter Paper ◽  
Low Cost

μPADS were fabricated by inkjet printing of permanent marker ink on filter paper, followed by evaporation of solvent.

Depth of Laser Etching in Green State LTCC

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000136-000141 ◽  
Author(s):  
Krzysztof Zaraska ◽  
Monika Machnik ◽  
Adam Bieńkowski ◽  
Beata Synkiewicz
Keyword(s):  
Rapid Prototyping ◽  
Screen Printing ◽  
Processing Parameters ◽  
Pulse Frequency ◽  
Precision Manufacturing ◽  
Laser Etching ◽  
Etching Depth ◽  
Green State ◽  
Power Pulse ◽  
Practical Standpoint

Laser etching of green state LTCC is a useful rapid prototyping and precision manufacturing process. Laser etching allows selective removal of screen printed conductor layer, producing patterns with higher precision than conventional screen printing. Its usefulness for rapid prototyping is due to elimination of time consuming screen preparation process. The etching is performed using a near UV (355 nm), pulsed laser. The process is characterized by three parameters: laser power, pulse frequency, and etching speed. From the practical standpoint, we are interested in finding a combination of parameters which allows for achieving required etching depth at the maximum etching speed. We present an empirical mathematical model relating etching depth to process parameters, allowing to theoretically determine optimum processing parameters for a specified etching depth.

Inkjet Printing of Multilayer Capacitors

2012 ◽  
Vol 9 (3) ◽  
pp. 126-132
Author(s):  
D. Jeschke ◽  
E. Ahlfs ◽  
K. Krüger
Keyword(s):  
Thermal Expansion ◽  
Aspect Ratio ◽  
Specific Capacitance ◽  
Inkjet Printing ◽  
Screen Printing ◽  
Second Step ◽  
Material Combination ◽  
Passive Components ◽  
Multilayer Capacitors ◽  
Screen Printing Technology

Capacitors are widely used passive components. Taking account of micro hybrid circuits, printed capacitors are desirable. However, today's screen printing technology results in very low specific capacitance per area, thus SMD components are usually preferred. In order to achieve a higher specific capacitance, simple plate capacitors are stacked to form multilayer components. Maskless inkjet printing allows for realization of such structures. To keep the process simple, in-between sintering is avoided; the entire component is cofired in one final step. To define the geometry of the components, the general processability of the used material combination is first examined. Among other things, the extent to which the structures can be decreased in size without affecting their functionality is determined. In further experiments, the effects of thermal expansion and sinter shrinkage are analyzed. To create multilayer capacitors, a second step takes place in which the design is completed. Vias are embedded to bypass the dielectric layer or the opposing electrode. When increasing the height of the structure, the aspect ratio that can be achieved by the printing process is considered.

The 3D Printer Design and Model Formation by a Commercial Inkjet Printing Module

2008 ◽  
Vol 594 ◽  
pp. 500-506
Author(s):  
Chun I Cheng ◽  
Chun Hao Chen ◽  
Wei Hsiang Lai ◽  
Sheng Jye Hwang ◽  
Sen Yung Lee
Keyword(s):  
Rapid Prototyping ◽  
Layer Thickness ◽  
Personal Computer ◽  
Inkjet Printing ◽  
Solid Model ◽  
3D Printer ◽  
Inkjet Printer ◽  
Model Formation ◽  
State Of Art ◽  
Better Than

This research utilizes a 2D printer mechanism from a commercial available inkjet printer, combines with hardware and software to build up a new concept 3D printer. This 3D printer can receive printing information from personal computer, and setting the required layer thickness to stack those layers into a solid model. The largest build volume is 300x420x350 mm, print head resolution is as high as 1200x2400 dpi, and the life of printer head is longer than 12 weeks which is far longer than 4 weeks of Z Corp’s. There are many specifications are better than or equivalent to those of Z Corp’s Z-510 which is the state-of-art machine of this powder based rapid prototyping.

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