• Title/Summary/Keyword: Screen printed

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Study on the efficiency of cleaning Process for Screen printing cleaning (스크린 인쇄 세정에 대한 세정공정 효율 연구)

  • 최성용
    • Journal of the Korean Graphic Arts Communication Society
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    • v.15 no.1
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    • pp.85-96
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    • 1997
  • The color difference between original and printed copy is affected mainly by ink trapping and optical properties of overprinted ink layer. Since the general expression itself about ink trapping is affected also by the optical properties, the analysis of color difference using the ink trapping only cannot be certain. This study will show a new approaching method for optical analysis of spectral reflectance and the effect of printing sequence on color difference in multi-color overprints under the condition of excluding completely the ink trapping problems by means of using transparent film as a substrate.

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Actively Addressable Carbon NanoTube Emitters for Field Emission Display

  • Song, Yoon-Ho;Hwang, Chi-Sun;Kim, Kwang-Bok
    • 한국정보디스플레이학회:학술대회논문집
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    • 2003.07a
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    • pp.194-197
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    • 2003
  • The actively addressable carbon nanotube (CNT) emitters have been studied for stable and low-voltage driving field emission display (FED). The a-Si TFT and screen-printed CNT emitters were successfully integrated to fabricate the diode type active-matrix cathode and FED panel. Also, we propose a new FED architecture based on the actively controlled triode CNT emitters showing the properties of ideal triode type cathode with electron beam focusing effect.

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Low Temperature Sealing of Plasma Display Panel using Organic Material (유기물을 사용한 PDP 저온 접합)

  • 문승일;이덕중;김영조;이윤희;주병권
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.15 no.11
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    • pp.976-980
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    • 2002
  • This paper repors on low temperature sealing process of PDP using binder and capping glass. The exhausting hole on rear glass of PDP was sealed by capping glass using screen-printed binder without exhausting glass tube. Based on the tubeless packaging process, out gassing problem could be reduced and vacuum conductance could be improved by eliminating exhaust tube.

Thick-Film Strain-gage Ceramic-Pressure Sensor (세라믹 다이어프램을 이용한 후막 스트레인 게이지 압력센서)

  • 이성재;박하용;민남기
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.12
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    • pp.987-993
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    • 2001
  • In this paper, we presents the construction details and output characteristics of a thick film piezoresistive strain gage. The thick film was printed on the ceramic diaphragm back side by screen printing and cured at 850$^{\circ}C$. The strain distribution and deflection on ceramic diaphragm were performed with finite-element method(FEM tool ANSYS-5.3). Various thick film strain gage characteristics were analysed, including nonlinearity, hysteresis, stability and sensitivity of thick film strain gages.

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A Study on AK Shadow Mask with Fe-Ni Alloy Coating for Flat CPTs

  • Kim, Sang-Mun
    • Journal of Information Display
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    • v.5 no.4
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    • pp.27-30
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    • 2004
  • This paper investigates the effects of coating such as Invar (Fe-36% Ni), Fe-Ni Alloys and $WO_3$ on the doming property of aluminum killed (AK) shadow masks, which may be used for flat CPTs. Invar and Fe-Ni Alloys are deposited on AK shadow mask in plasma atmosphere and annealed. $WO_3$ is screen-printed on the deposited layer. The coating is observed to cause a decrease in the doming property of the shadow masks due to their lower thermal expansion coefficients and anti-doming properties.

Metamaterial Based Absorber for Wearable Applications (의복용 메타물질 흡수체)

  • Lee, Dongju;Lim, Sungjoon
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.28 no.1
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    • pp.19-24
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    • 2017
  • In this paper, we propose a textile metamaterial absorber that using screen printing technology. A unit cell of the proposed absorber is motivated from the commercial Chanel logo for wearable applications. The complex impedance of the designed unit cell is analyzed by full-wave simulation. To verify its performance, the proposed metamaterial absorber is fabricated where the silver conductive ink is screen printed on an ordinary textile. From experimental results, the absorptivity of the proposed absorber is around 93 % at 10.8 GHz under normal incidence.