| 摘要 |
IN A VIDEO DISPLAY APPARATUS, DURING A CONSTANT TIME PERIOD T₀ AFTER THE POWER SOURCE (7) IS TURNED ON, THE CONTRAST IS HELD TO AVALUE (50%) WHICH IS LOWER THAN A DEFAULT VALUE (100%), AND, AFTER ELAPSE OF THE CONSTANT TIME PERIOD T₀, THE CONTRAST IS RAISED TO THE DEFAULT VALUE IN A STEPWISE MANNER.(FIG.2)
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