In a light emitter substrate which has a resistor for connecting electrodes adjacent in a row direction, it aims to improve withstand discharge performance of the resistor. In the substrate comprising a substrate, plural light emitting members which are positioned in matrix on the substrate, plural electrodes each of which covers at least one of the light emitting members and which are positioned in matrix, and a row-direction striped resistor which is positioned between the electrodes adjacent in a column direction and connects the electrodes adjacent in a row direction and the column direction, a row-direction separated distance Gx′ between the electrodes adjacent in the row direction at a connecting portion between the electrodes and the resistor is made larger than a row-direction separated distance Gx between the electrodes adjacent in the row direction at a portion covering the light emitting members (Gx′>Gx).