As described above, the display device according to the exemplary embodiment of the present invention includes the first electrode 191 formed throughout the pixel area, the pixel defining layer 195 overlapping the opaque signal lines of the pixel area, the organic emission layer 370 which does not overlap the pixel defining layer 195, and the second electrode 270 formed on the organic emission layer 370. Accordingly, as illustrated in FIGS. 6 and 7, the organic emission layer 370 emits light in a first region R1, a second region R2, a third region R3, a fourth region R4, and a fifth region R5 which do not overlap any of the opaque wire layers, so as to display an image. As such, the organic emission layer 370 is formed even in regions which are not display regions in conventional display devices, such as the region between the gate line 121 and the first source electrode 176a and the first drain electrode 177a, and a region between the driving voltage line 172 and the first drain electrode 177a. As a result, an emission area of the display device is increased. The pixel defining layer 195 only covers the opaque signal wires of the pixel area, and as a result, an aperture ratio of the display device is increased. Accordingly, the organic emission layer 370 is formed is formed in regions surrounded by the pixel defining layer 195 and so as not to overlap the pixel defining layer 195, and thus the organic emission layer 370 is formed in what has conventionally been a non-opening region. As a result, by preventing the organic emission layer 370 from unnecessarily emitting light even in the region where the image is not displayed, it is possible to prevent deterioration of emission efficiency while increasing an emission area of the display device.