| 摘要 |
PURPOSE:To maintain the linearity between the screen of adjacent indicators by compensating substantially the screen of a part which becomes invisible by the frame of the adjacent indicator at the time of the enlarged display. CONSTITUTION:A controller 1 being an information generating means derives some position coordinate, based on a data from the inside or the outside, and derives enlarged coordinates corresponding to plural pieces of decoders 3A-3I, respectively, from said position coordinate. This enlarged coordinate is shifted by a prescribed quantity in an origin direction, on the screen of indicators 4A-4I corresponding to plural pieces of decoders 3A-3I. In this way, the screen of a part which becomes invisible by the frame of the adjacent indicator at the time of the enlarged display can be compensated, therefore, the linearity between the screens of the adjacent indicators can be maintained.
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