| 摘要 |
In order to realize current drive type gradation control accompanied by gamma correction without enlarging the circuit scale, for example, a light emittable period of light emitting elements during one scan period is time-divided into two periods of a first half and a latter half to execute a light emission drive operation of the light emitting elements. For example, during the first half period, a light emission drive current given to the light emitting elements is generated by a current mirror circuit 16 , utilizing intensity conversion data read out of a gamma correction data table 12 . During the latter half period, the light emission drive current given to the light emitting elements is generated by the same current mirror circuit 16 , utilizing intensity conversion data read out of a display data table 11 . When a mean value of intensities of the light emitting elements during the light emittable period is produced, gradation expression accompanied by gamma correction can be realized.
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