Display device

A display device comprising:

• a substrate in which an active area and a non-active area are defined, wherein the non-active area includes a first non-active area positioned at an edge of the active area and a second non-active area surrounded by the active area, and an optical hole is defined in the second non-active area through the substrate in a thickness direction;
• a first first sub constant voltage line disposed on the substrate and extended from the second non-active area in a first direction;
• a second first sub constant voltage line disposed on the substrate and extended from the second non-active area in a direction opposite to the first direction;
• a sub constant voltage connection line disposed on the substrate line in the second non-active area and connecting the first first sub constant voltage line with the second first sub constant voltage;
• a first first sub data line disposed on substrate and extended from the second non-active area in the first direction;
• a second first sub data line disposed on the substrate and extended from the second non-active area in the direction opposite to the first direction;
• and
• a sub data connection line disposed on the substrate in the second non-active area and connecting the first first sub data line with the second first sub data line, wherein the sub data connection line is disposed in three or more different conductive layers, and
• the sub constant voltage connection line is disposed in a conductive layer different from a conductive layer in which the sub data connection line is disposed and insulated from the sub data connection line.