| 摘要 |
PROBLEM TO BE SOLVED: To provide a phase adjusting method of a sample-and-hold pulse by which the accuracy of phase adjusting of a sample-and-hold pulse can be improved. SOLUTION: When the number of dots written simultaneously in a liquid crystal panel is assumed to be N,αis assumed to be a natural number,βis assumed to be a natural number in the range of 1<=β<=(N/2), this method is provided with a first step in which a pattern of three vertical lines having interval ofαN+βor a pattern of three vertical lines having interval ofαN-βare generated as pattern for adjusting a phase, signal having waveform in accordance with the vertical line pattern is inputted to a sample-and-hold circuit, and a second step in which a phase of a sample-and-hold pulse is adjusted based on amplitude of output waveforms of the sample-and-hold circuit for each vertical line pattern.
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