A display unit manufacturing system comprising: a panel conveyance route which includes an optical film attaching unit configured to attach an optical film (F1, F2) to a panel (P); an inspection unit which inspects whether the panel (P) having the optical film (F1, F2) attached thereto is defective; a panel storing unit which stores the panel (P) from which the optical film (F1, F2) is separated, based on an inspection result of the inspection unit ; and a control unit which controls whether to input the panel (P) stored in the panel storing unit to the panel conveyance route , wherein the panel conveyance route includes: - a first panel conveyance route which includes a first optical film attaching unit configured to attach a first optical film (F1) to one surface of the panel (P); and - a second panel conveyance route which includes a second optical film attaching unit configured to attach a second optical film (F2) to the other surface of the panel (P), wherein the panel storing unit includes: - a first panel storing unit which stores the panel (P) from which the first optical film (F1) is separated, and inputs the stored panel (P) to the first panel conveyance route ; and - a second panel storing unit which stores the panel (P) from which the second optical film (F2) is separated, and inputs the stored panel (P) to the second panel conveyance route . a panel conveyance route which includes an optical film attaching unit configured to attach an optical film (F1, F2) to a panel (P); an inspection unit which inspects whether the panel (P) having the optical film (F1, F2) attached thereto is defective; a panel storing unit which stores the panel (P) from which the optical film (F1, F2) is separated, based on an inspection result of the inspection unit ; and a control unit which controls whether to input the panel (P) stored in the panel storing unit to the panel conveyance route , wherein the panel conveyance route includes: - a first panel conveyance route which includes a first optical film attaching unit configured to attach a first optical film (F1) to one surface of the panel (P); and - a second panel conveyance route which includes a second optical film attaching unit configured to attach a second optical film (F2) to the other surface of the panel (P), - a first panel conveyance route which includes a first optical film attaching unit configured to attach a first optical film (F1) to one surface of the panel (P); and - a second panel conveyance route which includes a second optical film attaching unit configured to attach a second optical film (F2) to the other surface of the panel (P), wherein the panel storing unit includes: - a first panel storing unit which stores the panel (P) from which the first optical film (F1) is separated, and inputs the stored panel (P) to the first panel conveyance route ; and - a second panel storing unit which stores the panel (P) from which the second optical film (F2) is separated, and inputs the stored panel (P) to the second panel conveyance route . - a first panel storing unit which stores the panel (P) from which the first optical film (F1) is separated, and inputs the stored panel (P) to the first panel conveyance route ; and - a second panel storing unit which stores the panel (P) from which the second optical film (F2) is separated, and inputs the stored panel (P) to the second panel conveyance route . <EOS>