| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately detect a temperature of a liquid crystal device and suitably adjust a grayscale thereof. Ž<P>SOLUTION: In a system of adjusting a grayscale, in order to adjust the grayscale of the liquid crystal device which is driven in a sub-field, an image signal is supplied to a liquid crystal panel (for example, 100R) by D/SF(Digital data/Sub-Field) conversion circuit (for example, 634r) based on a pulse waveform pattern information, display light is detected by a brightness meter 3000, and temperature characteristic information is generated by a panel temperature estimation circuit 640 based on light detection information Ca, a temperature is estimated by collating the generated temperature characteristic information with a reference temperature characteristic information, and based on the estimated temperature, a correction circuit (for example, 632r) sets the correction information to the D/SF conversion circuit (for example, 634r). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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