Abstract
This study aims to propose a novel roll-to-plate (R2P, was proposed a roller press mechanism that flat-type flexible mold soft cylindrical stamps is used to provide the imprinting force onto a rigid surface) technology with a flexible micro/nanoscale structures and takes it as the microstructure for producing an innovative continuous asymmetric grayscale microstructures (linear gradient microstructure arrays replication). This study first calculated and simulated the mechanical effect that affects the microstructures geometrical shape and R2P after the asymmetric grayscale inclined R2P. At the same time, this study developed and set up an innovative asymmetric grayscale (R2P) imprinting system with the micro/nanoscale structure component. During the development process, the existing gas-assisted light-curing technology was adopted, and the mold core of the flexible micro/nanoscale structures with gas pressurization. By integrating UV curing technology, this study adopted the continuous grayscale inclination method to create the R2P microstructure on the flexible model of the polymer, in order to obtain a continuous and large-area asymmetric grayscale microstructure. The test results suggested that the microstructure layer had thick mold, the elastic modulus provided higher and wider pressure distribution to the resist, and the symmetrical force was uniform. Moreover, there was significant grayscale pressure distribution under asymmetric force. Under the condition that the flexible microstructure mold core is too soft, it shows that the opportunity for the slight inclined-rotation effect of the microstructure occurs between the R2P. The proposed technology is expected to optimize the existing backlight module space and improve the light diffusion uniformity. In addition to providing a convenient and fast-forming mechanism, the proposed technology can effectively reduce the thickness of the flexible backlight module and produce a thin flexible display panel.
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References
Huang P, Kang J, Zhao Y, Chen S, Han R, Zhou Z, … & Liu X (2016) Reconfigurable nonvolatile logic operations in resistance switching crossbar array for large-scale circuits. Adv Mater 28(44), 9758–9764
Santos TG, Miranda RM, de Carvalho CC (2014) A new NDT technique based on bacterial cells to detect micro surface defects. NDT&E INT 63:43–49
Chang WH, Wang CH, Lin CL, Wu JJ, Lee MS, Lee GB (2015) Rapid detection and typing of live bacteria from human joint fluid samples by utilizing an integrated microfluidic system. Biosens Bioelectron 66:148–154
Fang YC, Cheng DL, Huang JW (2015) Optical design of external illuminance for display backlight module. J Disp Technol 11(12):979–986
Fang YC, Tzeng YF, Wu KY (2014) A study of integrated optical design and optimization for LED backlight module with prism patterns. J Disp Technol 10(10):812–818
Chen RH, Weng YJ, Yang SY (2016) Magnetic fluid microstructure curved surface uniform embossing and photocuring process technology. Polym Adv Technol 5:630–641
Weng YJ, Tsai J (2016) Application of 9× 9 grid gas bags pressure control technology to imprinting of various microstructures. OPTIK 127(20):8638–8645
Fiorillo M, Verre AF, Iliut M, Peiris-Pagés M, Ozsvari B, Gandara R et al (2015) Graphene oxide selectively targets cancer stem cells, across multiple tumor types: implications for non-toxic cancer treatment, via “differentiation-based nano-therapy”. Oncotarget 6(6):3553–3562
Chen Q, Liang C, Wang X, He J, Li Y, Liu Z (2014) An albumin-based theranostic nano-agent for dual-modal imaging guided photothermal therapy to inhibit lymphatic metastasis of cancer post surgery. Biomaterials 35(34):9355–9362
Argyros A (2013) Microstructures in polymer fibres for optical fibres, THz waveguides, and fibre-based metamaterials. ISRN Optics 2013
Weng YJ (2015) UV-curable technique of magnetic roller soft mold and microstructure pattern replication. Int Polym Process 30(1):63–69
Nie W, Chen F (2015) Dual-line optical waveguides in cu: KNSBN crystal fabricated by direct femtosecond laser writing. Opt Eng 54(9):097106–097106
Chen RH, Weng YJ, Hurng HY, Wang YL, Tsai CT (2016) Study of transfer printing using micro-dynamically-regulated micro-structural flexible mold. OPTIK 127(7):3590–3596
DUAN MY, SHAN X, AI Y (2014) Research and progress of laser atmospheric turbulence simulator. Optical Communication Technology 1:017
Nielsen MP, Lafone L, Rakovich A, Sidiropoulos TP, Rahmani M, Maier SA, Oulton RF (2016) Adiabatic nanofocusing in hybrid gap plasmon waveguides on the silicon-on-insulator platform. Nano Lett 16(2):1410–1414
Wu D, Niu LG, Wu SZ, Xu J, Midorikawa K, Sugioka K (2015) Ship-in-a-bottle femtosecond laser integration of optofluidic microlens arrays with center-pass units enabling coupling-free parallel cell counting with a 100% success rate. Lab Chip 15(6):1515–1523
Yong J, Chen F, Yang Q, Du G, Bian H, Zhang D, … & Hou X (2013) Rapid fabrication of large-area concave microlens arrays on PDMS by a femtosecond laser. ACS Appl Mater Interfaces 5(19):9382–9385
Oliver WC, Pharr GM (1992) An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J Mater Res 7(6):1564–1583
Oliver WC, Pharr GM (2004) Measurement of hardness and elastic modulus by instrumented indentation: advances in understanding and refinements to methodology. J Mater Res 19(1):3–20
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This work was partially supported by the Ministry of Science and Technology (Series No. MOST 105-2221-E-415-005) of Taiwan, Republic of China.
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Weng, YJ. Research and development of the asymmetric grayscale roll-to-plate processing technology. Int J Adv Manuf Technol 98, 1339–1353 (2018). https://doi.org/10.1007/s00170-018-2292-3
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DOI: https://doi.org/10.1007/s00170-018-2292-3