A coating apparatus comprising: a backup roll having a lower circumferential surface on which a web travels in a front-rear direction; a die disposed below the backup roll, the die including: a base module, a first body erected from a rear part of an upper surface of the base module integrally with the rear part, the first body having a triangular cross section in an upper part thereof, a second body combined with a front surface of the first body, the second body having a triangular cross section in an upper part thereof, a mount space formed between a front part of the upper surface of the base module and a lower surface of the second body, a liquid storage module for a coating liquid, the liquid storage module being provided in the first body or the second body, a liquid passage for the coating liquid, the liquid passage extending from the liquid storage module to a part between the first body and the second body, a slit-like discharge port for the coating liquid, the discharge port being provided at an upper end of the liquid passage, and a shim sandwiched between the first body and the second body; and a bending device disposed below the die; characterized by further comprising a die pressing module provided on an upper surface of the bending device, the die pressing module pressing a lower surface of the base module, wherein: • a first coating projecting module is formed at a tip of the upper part of the first body, the first coating projecting module having a planar upper surface, • a second coating projecting module is formed at a tip of the upper part of the second body, the second coating projecting module having a planar upper surface, • the discharge port is opened between the first coating projecting module and the second coating projecting module; • a perpendicular line from the center of a rotary shaft of the backup roll passes through a rear part of the first coating projecting module; and • the perpendicular line passes through the center of the die pressing module. a backup roll having a lower circumferential surface on which a web travels in a front-rear direction; a die disposed below the backup roll, the die including: a base module, a first body erected from a rear part of an upper surface of the base module integrally with the rear part, the first body having a triangular cross section in an upper part thereof, a second body combined with a front surface of the first body, the second body having a triangular cross section in an upper part thereof, a mount space formed between a front part of the upper surface of the base module and a lower surface of the second body, a liquid storage module for a coating liquid, the liquid storage module being provided in the first body or the second body, a liquid passage for the coating liquid, the liquid passage extending from the liquid storage module to a part between the first body and the second body, a slit-like discharge port for the coating liquid, the discharge port being provided at an upper end of the liquid passage, and a shim sandwiched between the first body and the second body; and a base module, a first body erected from a rear part of an upper surface of the base module integrally with the rear part, the first body having a triangular cross section in an upper part thereof, a second body combined with a front surface of the first body, the second body having a triangular cross section in an upper part thereof, a mount space formed between a front part of the upper surface of the base module and a lower surface of the second body, a liquid storage module for a coating liquid, the liquid storage module being provided in the first body or the second body, a liquid passage for the coating liquid, the liquid passage extending from the liquid storage module to a part between the first body and the second body, a slit-like discharge port for the coating liquid, the discharge port being provided at an upper end of the liquid passage, and a shim sandwiched between the first body and the second body; and a bending device disposed below the die; characterized by further comprising a die pressing module provided on an upper surface of the bending device, the die pressing module pressing a lower surface of the base module, wherein: • a first coating projecting module is formed at a tip of the upper part of the first body, the first coating projecting module having a planar upper surface, • a second coating projecting module is formed at a tip of the upper part of the second body, the second coating projecting module having a planar upper surface, • the discharge port is opened between the first coating projecting module and the second coating projecting module; • a perpendicular line from the center of a rotary shaft of the backup roll passes through a rear part of the first coating projecting module; and • the perpendicular line passes through the center of the die pressing module. • a first coating projecting module is formed at a tip of the upper part of the first body, the first coating projecting module having a planar upper surface, • a second coating projecting module is formed at a tip of the upper part of the second body, the second coating projecting module having a planar upper surface, • the discharge port is opened between the first coating projecting module and the second coating projecting module; • a perpendicular line from the center of a rotary shaft of the backup roll passes through a rear part of the first coating projecting module; and • the perpendicular line passes through the center of the die pressing module.