A Novel Column Spacer with Concaved Top Surface for TFT LCD

  • Lee, De-Jiun (TV Design Division, Research and Development Center, Chung Hwa Picture Tubes) ;
  • Chou, Kuo-Ching (TV Design Division, Research and Development Center, Chung Hwa Picture Tubes) ;
  • Wu, Der-Chun (TV Design Division, Research and Development Center, Chung Hwa Picture Tubes)
  • Published : 2006.08.22

Abstract

A novel column spacer with concaved top surface has been made through conventional photolithography process. The mechanical characteristics of this spacer were also investigated by using load-unload cycle test. According to the experimental results, the deformation ratio of this new designed spacer is larger than that of conventional column spacers about two times in the lower loading stage. At the higher loading stage there is no obviously difference in deformation ratio between the new designed spacer and the conventional spacer.

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