System for manufacturing display unit

A system for manufacturing a display unit, the system comprising:

• a transport unit which repeatedly transports an optical film comprising, laminated in this order, a polarizing film, an adhesive layer, and a release film separably attached to the adhesive layer, by a predetermined transport length and repeatedly stops the transport of the optical film;
• a cutting unit which cuts the optical film in a width direction at a predetermined cutting position without cutting the release film so as to form a slit line in the optical film;
• a separating unit which separates the polarizing film from the release film at the slit line to form a sheet piece of the polarizing film;
• and
• an attaching unit which attaches the sheet piece, which is separated from the release film, to a panel,
• wherein the transport unit includes a transport direction changing roll which is disposed at a downstream side in a transport direction so as to be spaced apart from the cutting position,
• wherein the transport direction changing roll changes the transport direction of the optical film, and satisfies Conditional Expressions 3 and 4 so that the slit line is not positioned on the transport direction changing roll when the transport of the optical film is stopped:
• L1>I*m Conditional Expressions 3
• L2<I*(m+1) Conditional Expressions 4
• wherein I is the predetermined transport length, which is a sum of a length of the sheet piece and an interval at which successive sheet pieces are spaced apart from each other by the slit line, m is an integer equal to or greater than 0, L1 is a length of the optical film from a position where the slit line is formed in the optical film to an initial point of contact between the optical film and the transport direction changing roll, and L2 is a length of the optical film from the position where the slit line is formed in the optical film to a final point of contact between the optical film and the transport direction changing roll.

A system for manufacturing a display unit, the system comprising:

• a transport unit which repeatedly transports an optical film comprising, laminated in this order, a polarizing film, an adhesive layer, and a release film separably attached to the adhesive layer, by a predetermined transport length and repeatedly stops the transport of the optical film;
• a cutting unit which cuts the optical film in a width direction at a predetermined cutting position without cutting the release film so as to form a slit line in the optical film;
• a separating unit which separates the polarizing film from the release film at the slit line to form a sheet piece of the polarizing film;
• and
• an attaching unit which attaches the sheet piece, which is separated from the release film, to a panel,
• wherein the transport unit includes a transport direction changing roll which is disposed at a downstream side in a transport direction so as to be spaced apart from the cutting position and changes the transport direction of the optical film to a vertical direction, and a vertical roll which is in contact with and supports the optical film after the transport direction is changed to the vertical direction, and
• wherein the vertical roll satisfies Conditional Expression 7 so that the slit line is not positioned on the vertical roll when the transport of the optical film is stopped:
• I*q−L2<V<I*(q+1)−L2 Conditional Expression 7
• wherein I is the predetermined transport length, which is a sum of a length of the sheet piece and an interval at which successive sheet pieces are spaced apart from each other by the slit line, q is an integer equal to or greater than 0, L2 is a length of the optical film from a position where the slit line is formed in the optical film to a final point of contact between the optical film and the transport direction changing roll, and V is a vertical distance between a rotation center of the vertical roll and the final point of contact between the optical film and the transport direction changing roll.