| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming method and device which have high emission efficiency and whose power consumption is low and also which are excellent in color reproducibility by performing drivings in accordance with emission efficiencies of phosphors. SOLUTION: This device is an image display device forming an image by irradiation of phosphors by electrons which are emitted from electron emitting elements driven by an image signal. In the device, the image signal is divided into image signals corresponding to a plurality of subframes on the basis of the image signals corresponding to one frame and the resultant signals are stored in a conversion memory 232. Modulated pulses are generated for every subframe in accordance with the image signals of the memory 232 and the phosphors of a display panel 229 are driven by divided pulses by outputting the modulated pulses to the panel 229.
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