Patent ID: 6961040

Claim:
A two-dimensional monochrome bit face display having a bit face in which each pixel is constituted by three sub-pixels, the display comprising: a neutral density filter having a light transmittance substantially equal to 50% that is mounted on one or two sub-pixels of the three sub-pixels constituting each of a plurality of respective pixels; an input circuit that receives an image signal and a control command; m sub-pixel luminance control circuits that output luminance control signals for controlling luminances of the m sub-pixels constituting the plurality of respective pixels; m rewritable look-up table circuits each coupled to an input of a respective sub-pixel luminance control circuit to supply predetermined luminance information to the respective sub-pixel luminance control circuit; a look-up table control circuit that controls content of look-up tables written into the m look-up table circuits; and a control circuit that controls luminance of the bit face on the basis of luminance control signals outputted by the m sub-pixel luminance control circuits.