Light-emitting device and image forming apparatus

Abstract

A light-emitting device has a plurality of pixel circuits arranged in one direction, each of the plurality of pixel circuits having a light-emitting element that emits light according to the amount of driving current, a driving transistor that supplies the driving current to the light-emitting element, a holding transistor that supplies a data signal supplied via a data line to the driving transistor, and a connecting line that connects the driving transistor to the holding transistor. The holding transistor, the light-emitting element, and the driving transistor are arranged in a direction crossing the arrangement direction of the plurality of pixel circuits. The light-emitting element is provided between the holding transistor and the driving transistor.

1 . A light-emitting device comprising:
 a substrate;   pixel circuits that are arranged along a first direction and formed above the substrate;   data lines that are extended along the first direction and that data signals are supplied to;   a shift register outputting selection signals, one of the selection signals selecting at least one of the pixel circuits during a selection period and the data signals being loaded from data lines of the selected pixel circuit during the selection period;   first electrodes, the first electrodes being formed corresponding to the pixel circuits;   a second electrode formed within a first area of the substrate; and   a light emitting layer between the first electrodes and the second electrode;   the data lines being formed at a second area between the first area and an end surface of the substrate.   
     
     
         2 . The light-emitting device according to  claim 1 ,
 the shift register being formed at a third area between the first area and an end surface of the substrate.   
     
     
         3 . The light-emitting device according to  claim 1 ,
 the end surface of the substrate being a side surface that extends along the first direction.