Patent ID: 6100939
Filing Date: 2000-08-08
Classification: G09G,Y10S

Abstract:
A tone display method for displaying an image signal in a system having a memory for dividing the time width of a field of said image signal into a plurality of subfields having respective predetermined luminant time widths and displaying the tone of said image signal by controlling the presence or absence of light emission of said plurality of subfields, comprising the steps of:generating at least two subfields (most significant subfields) whose luminant time widths are longest and almost equal among said plurality of subfields, ratios of the luminant time widths of ones of said plurality of subfields (lower subfields) other than said most significant subfields being binary coded; anddisplaying the tone of said image signal under a rule that two or more light emissions are not started from said at least two most significant subfields at the same time when it is assumed that the tones are displayed in the ascending order starting from the lowest level of tone in light emission of said plurality of subfields.