A display device including a main display area (MDA) in which main display elements are arranged and a component area (CA) in which auxiliary display elements and a transmission area (TA) are arranged, wherein the main display area (MDA) and the component area (CA) display an image individually or together, the component area (CA) overlaps with an electronic light transmitting or receiving component of the display device , the transmission area (TA) is an area through which light output from the electronic component to the outside or traveling toward the electronic component from the outside is transmitted, the display device comprising: a first pixel-defining layer arranged in the main display area (MDA), the first pixel-defining layer disposed between first pixel electrodes of the main display elements; a second pixel-defining layer arranged in the component area (CA), the second pixel-defining layer disposed between second pixel electrodes of the auxiliary display elements; a black matrix only arranged on the main display elements, the black matrix disposed around emission areas (EA) of the main display elements; and color filters arranged on the main display elements and the auxiliary display elements, the color filters corresponding to the emission areas (EA) of the main display elements and emission areas (EA) of the auxiliary display elements, respectively. the main display area (MDA) and the component area (CA) display an image individually or together, the component area (CA) overlaps with an electronic light transmitting or receiving component of the display device , the transmission area (TA) is an area through which light output from the electronic component to the outside or traveling toward the electronic component from the outside is transmitted, the display device comprising: a first pixel-defining layer arranged in the main display area (MDA), the first pixel-defining layer disposed between first pixel electrodes of the main display elements; a second pixel-defining layer arranged in the component area (CA), the second pixel-defining layer disposed between second pixel electrodes of the auxiliary display elements; a black matrix only arranged on the main display elements, the black matrix disposed around emission areas (EA) of the main display elements; and color filters arranged on the main display elements and the auxiliary display elements, the color filters corresponding to the emission areas (EA) of the main display elements and emission areas (EA) of the auxiliary display elements, respectively. a first pixel-defining layer arranged in the main display area (MDA), the first pixel-defining layer disposed between first pixel electrodes of the main display elements; a second pixel-defining layer arranged in the component area (CA), the second pixel-defining layer disposed between second pixel electrodes of the auxiliary display elements; a black matrix only arranged on the main display elements, the black matrix disposed around emission areas (EA) of the main display elements; and color filters arranged on the main display elements and the auxiliary display elements, the color filters corresponding to the emission areas (EA) of the main display elements and emission areas (EA) of the auxiliary display elements, respectively. <EOS>