Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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A Study on LCD Color Filter Printing Process Using Localized Laser Heating

레이저 가열을 이용한 LCD 컬러 필터 프린팅 공정에 관한 연구

  • Na, S.J. (Nanoprocessing Group, Korea Institute of Machinery & Materials) ;
  • Lee, J.H. (Korea Advanced Institute of Science and Technology) ;
  • Yoo, C.D. (Korea Advanced Institute of Science and Technology)
  • 나성준 (한국기계연구원 나노공정그룹) ;
  • 이재학 (한국과학기술원 기계공학과) ;
  • 유중돈 (한국과학기술원 기계공학과)
  • Published : 2007.06.30
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Abstract

A new printing process for LCD color filter is proposed in this work by using the localized laser heating, which is called laser-induced spray printing (LISP) process. The LISP is a non-contact process, which injects the ink from the donor substrate to the glass substrate by the bubble pressure induced by laser heating. The temperature distribution of the donor substrate is calculated numerically to explain the ink ejection phenomena. The composition of the ink was includes the red pigment, n-butanol, xylene, BCA and epoxy. Experiments were conducted by using the fiber laser system, and the color filter patterns were deposited successfully under the proper laser heating conditions.

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