| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce shadowing and luminance slope occurring according to the lighting rates of light emitting elements. <P>SOLUTION: The driving device includes a passive matrix type light emitting display panel 1 equipped with the light emitting elements E11 to Emn connected to the intersection positions of a plurality of scanning lines and a plurality of data lines intersecting each other, changeover means Sal to Sam on a scanning driver 3 side where each of the scanning lines A1 to Am is set at a scanning selection potential VAH or non-scanning selection potential (grounding potential), and changeover means Sk1 to Skn on a data driver 2 side where each of the data lines K1 to Kn is connected to lighting drive power sources I1 to In or non-lighting drive power source VKH. The lighting drive power sources I1 to In comprise a constant current source of an attraction type to attract the lighting drive current of the light emitting elements from a cathode terminal side of the light emitting elements in a scanning state toward a reference potential point. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
