CRT-02: Television Sets with Ultra-Slim Transposed Scan CRTs

  • Wesenbeeck, R.J. Van (Philips Research Laboratories, Eindhoven, The Netherlands) ;
  • Bosma, M. (Philips Research Laboratories, Eindhoven, The Netherlands) ;
  • Heynderickx, I. (Philips Research Laboratories, Eindhoven, The Netherlands) ;
  • Krijn, M.P.C.M. (Philips Research Laboratories, Eindhoven, The Netherlands) ;
  • Mastenbroek, E. (Philips Research Laboratories, Eindhoven, The Netherlands)
  • Published : 2002.08.21

Abstract

Transposed scan is an innovation that paves the road to ultra-slim CRTs with deflection angles up to 135$^{\circ}C$ We discuss the integration of video transposition with the other video processing functions in the television set. An in-place transposition algorithm which minimizes the amount of frame memory is proposed as a low-cost solution for transposed scan conversion. The difference in visual perception of transposed scan and normal scan depends on the frame rate and the line density of the video format. We found that for high frame rates and high line densities, no difference was perceived for both scan modes.

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