| 摘要 |
A display element 1, provided at each point of intersections of a plurality of signal lines and a plurality of scanning lines, includes an optical modulation element 5 and an active element 2, wherein, when a scanning is carried out not less than once in one field period at a predetermined intervals, a memory element 3 which can store M-bit (M>=1) information at the maximum is provided so that the optical modulation element 5 keeps the display with 2M-level gray scale until the next scanning. On this account, it is possible to supply gray scale signal data Dm to the optical modulation element 5 so as to keep the display condition, without attenuating the data after the scanning of pixels. Moreover, since the level of the gray scale display is kept by outputting the information stored in the memory element 3, the gray scale level in each time division sub field can be in concordance with the number of memory bits.
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