| 摘要 |
A gray-scale generating circuit having a waveform that represents the gray level of a picture element over a certain number of frames of an image, the picture element being scanned during a certain interval in each frame. Each interval is divided into parts. The waveform has either a high level or a low level in each part of each interval thereby obtaining a set of waveform parts. The level of each of the waveform parts of the waveform, taken collectively over the intervals in the above number of frames, is variable and set according to the gray level of the picture element. In a matrix-addressed display, the waveforms are varied so that the waveforms of side-by-side picture elements do not all go high and low in unison.
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