Drive circuit for display device with uniform luminance characteristics

摘要

A display device having a drive circuit and plural drive elements, each drive element taking charge of the driving of plural pixels, which timeshares one screen display duration of a display panel into plural display durations corresponding to display tones, and weights the number of sustaining pulses for each divided display duration to display a multitone image, wherein the drive circuit is provided with: a halftone display means that converts on n-bit (n being an integer not less than 2) input image signal into an m-bit (m≤n) image signal and obtains an intermediate level from a neighboring drive level; and a display area detect means that detects the display area for every certain duration based on the m-bit image signal of said halftone display means and maintains a constant luminance characteristic for said display panel on the basis of the detected output.