• 한국결정성장학회지
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• 제33권1호
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• pp.7-14
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• 2023

유리병 제조 공장에서 생산한 유리 조성을 4년간 40 차례 분석하여 Lakatos 모델로 점도를 구하였다. log η가 3, 6.6, 10, 12.3 Pa·s 일 경우의 isokom 온도를 구하여 조성과 isokom 온도와의 상관관계를 분석하였다. 조성에서 함량에 편차가 가장 큰 것은 MgO로 변동계수가 0.890이었다. 그러나 MgO 함량 편차가 점도 변화에 주는 영향은 제한적 이었다. 반면 CaO는 연화점 이하에서 비가교산소를 감소시키는 작용에 의하여 isokom 온도를 낮추고 있었다.

• 반도체디스플레이기술학회지
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• 제16권2호
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• pp.98-105
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• 2017

In the display industry, the residual vibration of the transfer robot can increase the process time and cause the breakage of the glass substrate, which is critical to productivity of display manufacturing. In this paper, the natural frequencies of transfer robot are analyzed by finite element method. On the basis of the analyzed data, we investigated the response characteristics of input shaping control with or without the glass presence on the hand of the transfer robot using MATLAB program, and compared with the current response characteristics of input shaping control applied to the industry. Based on this, we suggest an optimal residual vibration control method for the practical application in display industry.

• 월간포장계
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• 통권268호
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• pp.60-63
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• 2015

• 월간포장계
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• 통권292호
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• pp.64-67
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• 2017

• 월간포장계
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• 통권304호
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• pp.66-71
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• 2018

• 광학세계
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• 제6권4호통권32호
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• pp.61-66
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• 1994

• 월간포장계
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• 통권316호
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• pp.60-63
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• 2019

• 월간포장계
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• 통권340호
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• pp.58-62
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• 2021

• 월간포장계
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• 통권328호
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• pp.58-62
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• 2020

• 한국정밀공학회지
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• 제21권2호
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• pp.122-129
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• 2004

There is an increasing need for large flat panel display devices. PDP (Plasma Display Panel) is one of the most promising candidates for this need. Thermal shock failure of PDP glass during manufacturing process is a critical issue in PDP industry since it is closely related to the product yield and the production speed. In this study, thermal shock resistance of PDP glass is measured by water quenching test and an analysis scheme is described for estimating transient temperature and stress distributions during thermal shock. Based on the experimental data and the analysis results, a simple procedure for predicting the thermal shock failure of PDP glass is proposed. The fast cooling process for heated glass plates can accelerate the speed of PDP production, but often leads to thermal shock failure of the glass plates. Therefore, a design guideline for preventing the failure is presented from a viewpoint of high speed PDP manufacturing process. This design guideline can be used for PDP process design and thermal -shock failure prevention.