Patent ID: 7522132
Filing Date: 2009-04-21
Classification: G09G

Abstract:
1. An image display apparatus, comprising: a plurality of image forming devices which are driven through a plurality of row wirings and a plurality of column wirings and arranged in a matrix for image formation; scanning means for successively selecting the row wirings to output a selective signal to a selected row wiring, and to output a non-selective signal to a non-selected row wiring; modulation means for outputting modulation signals corresponding to image data, which are applied to the column wirings; and scanning voltage control means for commanding to change a voltage level of the selective signal in response to a display control signal, the scanning means setting a voltage level of the selective signal in response to a scanning voltage control signal received from the scanning voltage control means, wherein provided that where a light emission luminance value obtained when a drive voltage v is applied to each of the image forming devices is given by L(v), a first-order differential coefficient of the light emission luminance value L(v) to the drive voltage v is given by L′(v). and a second-order differential coefficient thereof is given by L″(v), are satisfied in a range of the drive voltage v for image display.