| 摘要 |
PROBLEM TO BE SOLVED: To turn on-off pixels independent of the kind of a data display panel, by converting and outputting segment waveform signals by separating them into H-level or L-level digital display waveform signals according to voltage levels. SOLUTION: A segment conversion part 12 separates the voltage levels of segment waveform signals S1-S4 into 1st conversion waveform signals H11-H14 of H-level or L-level digital values, and converts and outputs them. A common conversion part 14 converts the voltage levels of common waveform signals C1/C2 into 2nd conversion waveform signals H21, H22 of H-level or L-level digital values and outputs them. A data development part 16 synchronizes the 1st conversion waveform signals H11-H14 with the 2nd conversion waveform signals H21, H22, and converts them into digital display waveform signals D1,1-D4,1, D1,2-D4,2. The segment waveform signal S1 is converted into the H-level digital display waveform signal D1,1, and the segment waveform signal S2 is converted into the L-level digital display waveform signal D2,1.
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