한국정보디스플레이학회:학술대회논문집
- 2007.08a
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- Pages.356-359
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- 2007
Writable Cholesteric Liquid Crystal Display and the algorithm used to detect its image
- Lee, Da-Wei (Display Technology Center, Industrial Technology Research Institute) ;
- Shiu, Jyh-Wen (Display Technology Center, Industrial Technology Research Institute) ;
- Sha, Yi-An (Display Technology Center, Industrial Technology Research Institute) ;
- Chang, Yu-Pei (Display Technology Center, Industrial Technology Research Institute)
- Published : 2007.08.27
Abstract
Writable Cholesteric Liquid Crystal Display and the algorithm used to detect its image were developed. We could use any hard tip, ex: the tip of a forefinger, to directly write an image on the surface of Cholesteric Liquid Crystal Display (CHLCD). By measuring the capacitance of one pixel of test cell (12mm x 15mm/1x1), F-state or P-state could be detected. By measuring the capacitance of one pixel of 4.1" CHLCD (241um x 241um/ 320x320), F-state or Pstate could not be detected, due to the effect of parasitic capacitance. Therefore, high frequency measurement and the algorithm were developed to detect the image on CHLCD.