The Laminating process for Single Substrate Flexible LCD

  • Bae, Kwang-Soo (Department of information Display Engineering, Hanyang University) ;
  • Choi, Yoon-Seuk (Reaserch Institute of Information Display, Hanyang University) ;
  • Kim, Hak-Rin (School of Electrical Engineering and computer Science, Kyungpook National University) ;
  • Kim, Jae-Hoon (Department of information Display Engineering, Hanyang University, Reaserch Institute of Information Display, Hanyang University, Department of Electronics and Computer Engineering, Hanyang University)
  • Published : 2007.08.27

Abstract

The laminating technique for developing flexible liquid crystal display was demonstrated by using a thin UV curable polymer film and a plastic substrate with patterned polymer wall structure. We adopted the rigid wall structure to provide a solid mechanical support for the stable molecular alignment of liquid crystals (LCs) in the device. The cover film was prepared to have an ability of aligning LC molecules by patterning a micro-groove structure using the soft-lithographic process. These two substrates can be assembled tightly by the laminating and one-step UV irradiation process because of the adhesive nature of the used UV curable polymers. Proposed method can be used to fabricate the flexible LC display with simplicity and also be applicable for a cost-effective roll-to-roll process.

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