A display apparatus conducting time-division gradation display is provided with: a capacitor for keeping a signal level captured by a first TFT; at least one pixel memory, for keeping the signal level captured by the first TFT; a second TFT matched with the corresponding pixel memory; and a bit selecting line for selectively-driving the second TFT, wherein, when a scanning signal line is selected, the first TFT sets the display signal level is set in the capacitor via the first TFT and the second TFT is selectively driven so that the display signal level is set in the at least one pixel memory, whereas the TFT is selectively driven so that a display signal level which has been displayed is switched to the display signal level supplied from the at least one pixel memory.

 
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> Optical element and manufacturing method therefor

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