It is important to achieve high-precision register control in roll-to-roll continuous printing systems. Thus far, many studies on the dynamics of registers and tension and on register control techniques have identified register control as a problem of controlling and minimizing the disturbance of strain of the substrate. However, register control using printed register marks is necessary, and printing defects in creating these marks cause measurement errors. This study demonstrates by experimental verification that the measurement error is generated by the widening and agglomeration of the register mark. Furthermore, the error is shown to differ with the size and shape of the mark under identical printing conditions. The results illustrate the importance of improving the printing quality of the register mark, selecting the desired geometry for register marks with regard to printability, and utilizing an edge-detection algorithm in the control program for high-precision register control.
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3 October 2016
Research Article|
October 04 2016
Register mark measurement errors in high-precision roll-to-roll continuous systems: The effect of register mark geometry on measurement error
Jongsu Lee;
Jongsu Lee
1Department of Mechanical Design and Production Engineering,
Konkuk University
, Seoul 143-701, South Korea
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Pekka Isto;
Pekka Isto
2
VTT Technical Research Centre of Finland
, 90570 Oulu, Finland
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Hakyung Jeong;
Hakyung Jeong
1Department of Mechanical Design and Production Engineering,
Konkuk University
, Seoul 143-701, South Korea
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Janghoon Park;
Janghoon Park
1Department of Mechanical Design and Production Engineering,
Konkuk University
, Seoul 143-701, South Korea
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Dongjin Lee;
Dongjin Lee
3School of Mechanical Engineering,
Konkuk University
, Seoul 143-701, South Korea
4Flexible Display Roll-to-roll Research Center,
Konkuk University
, Seoul 143-701, South Korea
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Kee-Hyun Shin
Kee-Hyun Shin
a)
3School of Mechanical Engineering,
Konkuk University
, Seoul 143-701, South Korea
4Flexible Display Roll-to-roll Research Center,
Konkuk University
, Seoul 143-701, South Korea
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a)
Author to whom correspondence should be addressed. Electronic mail: khshin@konkuk.ac.kr
Appl. Phys. Lett. 109, 141602 (2016)
Article history
Received:
June 13 2016
Accepted:
September 22 2016
Citation
Jongsu Lee, Pekka Isto, Hakyung Jeong, Janghoon Park, Dongjin Lee, Kee-Hyun Shin; Register mark measurement errors in high-precision roll-to-roll continuous systems: The effect of register mark geometry on measurement error. Appl. Phys. Lett. 3 October 2016; 109 (14): 141602. https://doi.org/10.1063/1.4964262
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