Photo Aligned Quantum Rod Films by inkjet Printing for modern LCDs with Extended Color Gamut

Author(s):  
Swadesh Kumar Gupta ◽  
Maksym F. Prodanov ◽  
Maksym Diakov ◽  
Valerii V. Vashchenko ◽  
Chengbin Kang ◽  
...  
Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20837-20846 ◽  
Author(s):  
Swadesh K. Gupta ◽  
Maksym F. Prodanov ◽  
Wanlong Zhang ◽  
Valerii V. Vashchenko ◽  
Tetiana Dudka ◽  
...  

Inkjet printing of quantum rods on to the photoaligned substrate opens up the possibility of both brightness and color enhancement for liquid crystal displays (LCD) in the form of quantum rod enhancement films (QREF) for LCD backlights.


2017 ◽  
Vol 109 (9) ◽  
pp. 1143-1151 ◽  
Author(s):  
Yi Ding ◽  
Lisa Parrillo-Chapman ◽  
Harold S. Freeman
Keyword(s):  

2012 ◽  
Vol 262 ◽  
pp. 340-344 ◽  
Author(s):  
Chang Lang Chen ◽  
Mei Chun Lo ◽  
Yun Ti Su ◽  
Yu Tung Chang

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.


2018 ◽  
Vol 49 (1) ◽  
pp. 847-849 ◽  
Author(s):  
Swadesh Kumar Gupta ◽  
Wanlong Zhang ◽  
Maksym Prodanov ◽  
Valerii Vashchenko ◽  
Vladimir G. Chigrinov ◽  
...  
Keyword(s):  

2021 ◽  
Vol 12 (3) ◽  
pp. 5-12
Author(s):  
Ufuk Yilmaz ◽  
◽  
Ahmet Tutuş ◽  
Sinan Sönmez ◽  
◽  
...  

The aim of this study is to compare laserjet printing and inkjet printing properties on recycled papers. In the study, we recycled reference papers prepared in accordance with the INGEDE 11p standard. After recycling the papers, we produced test papers in the laboratory environment and examined the physical and optical properties of the obtained papers. We applied calendering process at 100 oC temperature and 20 bar pressure on the obtained test papers. After this process, we printed trigromy color measurement scales with inkjet and laserjet printers on the test papers obtaine Finally, using the spectrophotometer, we determined the printing properties of both print types. When we examined the results, we determined that in most of the printability parameters, laserjet had a superior performance and was a more usable printing system. For example, while the inkjet cyan density value is 0.94, the laserjet is 1.05. While M + Y trapping value was 28.23 in inkjet, it was 92.20 in laserjet. For example, we found the Gloss value as 2.53 in inkjet and 4.23 in laserjet. While inkjet cyan print chroma value is 44.03, it is 48.09 in laserjet. In addition, we determined that laserjet printing reached a wider area as a color gamut. Based on the color measurement results of both printing types, we have determined that the printability of recycled papers is reasonable. We have determined with experimental results that laserjet printing produces better quality prints in a short time, especially in the office environment.


2014 ◽  
Vol 1004-1005 ◽  
pp. 795-798
Author(s):  
Chang Lang Chen ◽  
Lihrong Chiou ◽  
Yu Tung Chang ◽  
Weichieh Hsu

IMR can print out excellent textures and effects on irregular surfaces. Many products decorated by IMR are protected from water and fading, and these kinds of decorations strongly increase beauty, desirability and value of the objects. Therefore, this research is to investigate the potential use of combining IMR with UV inkjet printing and to compare color variance of IMR between PET coated and uncoated white ink. Study results show that the SIDs of PET with white ink is higher about 0.15 to 0.2 than the PET without white ink. The SIDs of PET without white ink will decrease and the SIDs of the PET with white ink will increase when transferred. The PC of PET without white ink is about 10 to 15 higher than the PET with white ink. After transferred, the Color Gamut became smaller than before. Especially for the PET without white ink, its color differences △E can reach 40. In addition, the color gamut became smaller when transferred.


2012 ◽  
Vol 262 ◽  
pp. 345-348 ◽  
Author(s):  
Yung Cheng Hsieh ◽  
Hsiang Tung Lee ◽  
Ssu Yi Cheng

UV Inkjet Printing has demonstrated extraordinary potential in printing technology around the globe in recent years. Other than its environment-friendly trait, UV Inkjet Printing can also be applied to various printing materials due to its wide range of application. Comparing to the low-price competition invoked by paper-based printing, it achieves high added-value results from its output. While international market’s perspective on inkjet printing remains positive, most printing press in Taiwan still have doubts for the technology. In recent years, there has been a considerable growth in importing UV Width Inkjet printers in Taiwan domestically. However, working personnel in Taiwan are inexperienced in dealing with new equipment and wider selection of printing materials, therefore the issue of printers adapting to their diverse printing materials. This study will examine the five combinations of UV printer and printing materials that are common in Taiwan (brands of printers, serial number of the sprinkler head, and brands of printing ink) and three specific high-value printing substrates (glass, acrylic and melamine plywood). Through the printing experiment, the color gamut of printing materials will be re-examined. The goal of the study is to establish a standard for UV printing’s application in decoration materials, so as to provide reference for future development.


2019 ◽  
Vol 50 (S1) ◽  
pp. 884-884
Author(s):  
Swadesh Kumar Gupta ◽  
Maksym Prodanov ◽  
Valerii Vashchenko ◽  
Maksym Diakov ◽  
Abhishek Kumar Srivastava
Keyword(s):  

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