JP6082140B2 - Optical display panel continuous manufacturing method and optical display panel continuous manufacturing system - Google Patents

Description

  The present invention relates to an optical display panel continuous manufacturing method and an optical display panel continuous manufacturing system.

The first polarizing film obtained by feeding out a strip-shaped first polarizing film having an absorption axis in the longitudinal direction from the first optical film roll and cutting the strip-shaped first polarizing film in the width direction is used as the liquid crystal cell. The first obtained by pasting to the back side surface, feeding out a strip-shaped second polarizing film having an absorption axis in the longitudinal direction from the second optical film roll, and cutting the strip-shaped second polarizing film in the width direction. A continuous manufacturing method (so-called Roll to Panel (RTP) system) of a liquid crystal display panel in which a two-polarized film is bonded to a surface on the viewing side of the liquid crystal cell is disclosed (for example, see Patent Document 1). According to this RTP system, liquid crystal display panels can be continuously produced.

By the way, as a liquid crystal display panel with high light utilization efficiency, a first optical film including a polarizing film is bonded to the surface on the viewing side of the liquid crystal cell, and a polarizing film and a linearly polarized light separating film are arranged in this order on the back surface of the liquid crystal cell. A liquid crystal display panel in which a laminated second optical film is bonded is disclosed (for example, see Patent Document 2). Such a liquid crystal display panel is also required to be continuously produced.

Patent No. 4406043 JP 2002-196141 A JP 2004-250213 A

  However, normally, the transmission axes of the polarizing film and the linearly polarized light separating film are orthogonal to each other. That is, normally, the polarizing film has an absorption axis in the longitudinal direction, and the linearly polarized light separating film has a reflection axis in the width direction. Therefore, such a polarizing film and a linearly polarized light separating film cannot be continuously laminated in a strip-like film state by a Roll to Roll method or the like, and an optical film roll for an RTP system cannot be manufactured.

  For example, referring to the method described in Patent Document 3, after laminating a linearly polarized light separating film cut to a predetermined size on a band-shaped polarizing film fed out from a polarizing film roll, the sheet is cut as it is. It is not unthinkable to produce an optical film roll by winding and use it for an RTP system. However, in this case, as shown in FIG. 6, a portion (boundary region) F in which the linearly polarized light separating film 902 is not laminated in the strip-shaped polarizing film 901 inevitably occurs with a certain area, so that the yield is greatly increased. It must be lowered. On the contrary, if the bonding is performed with high accuracy so that the boundary region F does not occur as much as possible, the tact is greatly sacrificed. Further, when the linearly polarized light separating film 902 is laminated on the belt-shaped polarizing film 901, the supply direction of the linearly polarized light separating film 902 and the bonding direction to the belt-shaped polarizing film 901 are orthogonal to each other. 902 cannot be smoothly bonded to the strip-shaped polarizing film 901 as it is, and there is a problem in terms of high-speed productivity.

  Such a problem is not limited to the liquid crystal display panel in which the polarizing film and the linearly polarized light separating film described above are laminated on the surface on the back side of the liquid crystal cell. In general, an optical film that cannot be laminated continuously in the state of a belt-like film is optical. This is a new problem that arises when an optical display panel laminated on one surface of a cell is continuously produced.

  The present invention has been made in view of the above problems, and is capable of continuously producing an optical display panel in which an optical film that cannot be continuously laminated in the state of a belt-like film is laminated on one surface of an optical cell with high yield. It is an object of the present invention to provide a continuous manufacturing method and a continuous manufacturing system for an optical display panel.

The present invention provides an optical display panel in which a first polarizing film having an absorption axis and a linearly polarized light separating film having a reflection axis arranged in parallel to the absorption axis are laminated in this order on the back surface of the optical cell. A process for continuously producing
The first polarizing film obtained by cutting the strip-shaped first polarizing film having an absorption axis in the longitudinal direction in the width direction is supplied from the first optical film roll, and while transporting the optical cell, the first A first bonding step in which a polarizing film is bonded to a surface on the back side of the optical cell along a supply direction of the first polarizing film from a pair of sides facing the optical cell;
The linearly polarized light separating film is taken out and supplied from a housing part in which a single-wafer linearly polarized light separating film having a reflection axis is housed, and is bonded to the back surface of the optical cell while transporting the optical cell. A second laminating step of laminating along the supply direction of the linearly polarized light separating film on the first polarizing film from one set of opposing sides of the optical cell or another set of opposing sides. .

  According to this structure, the 1st polarizing film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a roll, a linearly polarized light separation film is supplied continuously from an accommodating part, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on the surface on the back side of the optical cell. As a result, an optical display panel with high light utilization efficiency in which the first polarizing film and the linearly polarized light separating film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As an embodiment of the above invention, the method further includes a housing step of cutting the strip-shaped linearly polarized light separating film having a reflection axis in the width direction in the width direction, and housing the obtained linearly polarized light separating film in the housing portion, A 2nd bonding process supplies the said linearly polarized light separation film, making the reflective axis of the said linearly polarized light separation film parallel to the supply direction of the said linearly polarized light separation film, and conveying the said optical cell, The back surface of the said optical cell It is the process of bonding along the supply direction of the linearly polarized light separating film from the pair of sides facing the optical cell on the first polarizing film bonded to the side surface.

  According to this configuration, since the first polarizing film transport line and the linearly polarized light separating film transport line can be continuously stacked on the optical cell without being orthogonal, the apparatus space can be reduced. .

Another aspect of the present invention is an optical device in which a first polarizing film having an absorption axis and a linearly polarized light separating film having a reflection axis arranged in parallel with the absorption axis are laminated in this order on the back surface side of the optical cell. A method for continuously producing display panels,
A pair of sides of the optical cell facing each other or while transporting the optical cell while taking out and supplying the first polarizing film from a storage unit in which the first polarizing film in a single wafer state having an absorption axis is stored. A first laminating step of laminating the surface of the optical cell along the supply direction of the first polarizing film from another set of sides facing each other;
The linearly polarized light separating film obtained by cutting a strip-like linearly polarized light separating film having a reflection axis in the width direction in the width direction is supplied from a second optical film roll, and while transporting the liquid crystal cell, the optical cell A second laminating step of laminating along the supply direction of the linearly polarized light separating film from another side of the optical cell on the first polarizing film bonded to the back side surface of the optical cell; Including.

  According to this structure, the 1st polarizing film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a storage part, a linearly polarized light separation film is supplied continuously from a roll, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on the surface on the back side of the optical cell. As a result, an optical display panel with high light utilization efficiency in which the first polarizing film and the linearly polarized light separating film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the above invention, the method further includes an accommodating step of cutting the strip-shaped polarizing film having an absorption axis in the longitudinal direction in the width direction, and accommodating the obtained first polarizing film in the accommodating portion, The laminating step supplies the first polarizing film while the absorption axis of the first polarizing film is parallel to the direction orthogonal to the supply direction of the first polarizing film, and transports the optical cell while the optical cell is transported. Is a step of bonding to the back surface of the optical cell from another set of sides facing the optical cell along the supply direction of the first polarizing film.

  According to this configuration, since the first polarizing film transport line and the linearly polarized light separating film transport line can be continuously stacked on the optical cell without being orthogonal, the apparatus space can be reduced. .

  As one embodiment of the invention, a second polarizing film obtained by cutting a strip-shaped second polarizing film having an absorption axis in the longitudinal direction in the width direction is supplied from a third optical film roll, and the optical cell is A third bonding step is further included in which the optical cell is bonded to the viewing side surface of the optical cell along the supply direction of the second polarizing film from another set of sides facing the optical cell while being conveyed.

  According to this configuration, a high-contrast optical display panel in which the absorption axes of the viewing-side polarizing film and the back-side polarizing film are orthogonal to each other can be produced continuously with a high yield.

  As one embodiment of the present invention, the second polarizing film is taken out from the storage unit in which the second polarizing film in a single wafer state is stored and supplied, and the second polarizing film is supplied while transporting the optical cell. The 3rd bonding process bonded together on the surface at the side of visual recognition of the above-mentioned optical cell is further included.

  According to this configuration, a high-contrast optical display panel in which the absorption axes of the viewing-side polarizing film and the back-side polarizing film are orthogonal to each other can be produced continuously with a high yield. As long as the bonding direction of the second polarizing film to the optical cell is arranged so that the absorption axes of the viewing-side polarizing film and the back-side polarizing film are orthogonal to each other, for example, a pair of sides facing the optical cell. May be bonded together, or may be bonded from another side of the optical cell facing each other.

  As one embodiment of the invention, the optical cell is a VA mode or IPS mode liquid crystal cell.

  The present invention is particularly suitable for continuously producing a high-contrast VA mode or IPS mode optical display panel with a high yield.

In another aspect of the present invention, a first polarizing film having an absorption axis and a linearly polarized light separating film having a reflection axis arranged in parallel with the absorption axis are laminated in this order on the back surface of the optical cell. A system for continuously manufacturing optical display panels,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply section for supplying the first polarizing film obtained by cutting the strip-shaped first polarizing film having an absorption axis in the longitudinal direction from the first optical film roll;
While transporting the optical cell transported by the transport unit, the first polarizing film supplied by the first optical film supply unit is moved from the pair of sides facing the optical cell to the first polarizing film. A first bonding portion to be bonded to the surface on the back side of the optical cell along the supply direction;
A second optical film supply unit that takes out and supplies the linearly polarized light separating film from a storage unit in which a single-wafer linearly polarized light separating film having a reflection axis is stored;
On the first polarizing film in which the linearly polarized light separating film supplied by the second optical film supply unit is bonded to the back side surface of the optical cell while conveying the optical cell conveyed by the conveying unit. And a second laminating portion that is pasted along the supply direction of the linearly polarized light separating film from one set of opposing sides of the optical cell or from another set of opposing sides.

  According to this structure, the 1st polarizing film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a roll, a linearly polarized light separation film is supplied continuously from an accommodating part, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on the surface on the back side of the optical cell. As a result, an optical display panel with high light utilization efficiency in which the first polarizing film and the linearly polarized light separating film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the invention, the linearly polarized light separating film is obtained by cutting a strip-like linearly polarized light separating film having a reflection axis in the width direction in the width direction, and the second optical film supply unit Supplies the linearly polarized light separating film while making the reflection axis of the linearly polarized light separating film parallel to the supply direction of the linearly polarized light separating film.

  According to this configuration, since the transport lines of the first polarizing film and the linearly polarized light separating film can be arranged parallel to each other, the space occupied by the apparatus can be reduced.

In another aspect of the present invention, a first polarizing film having an absorption axis and a linearly polarized light separating film having a reflection axis arranged in parallel with the absorption axis are laminated in this order on the back surface of the optical cell. A system for continuously manufacturing optical display panels,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply unit that takes out and supplies the first polarizing film from a storage unit in which a single-polarized first polarizing film having an absorption axis is stored;
While transporting the optical cell transported by the transport unit, the polarizing film supplied by the first optical film supply unit is made to face one set of sides or another set of sides facing the optical cell. A first bonding part that is bonded to the back side surface of the optical cell along the supply direction of the first polarizing film from the side;
A second optical film supply unit for supplying the linearly polarized light separating film obtained by cutting a strip-shaped linearly polarized light separating film having a reflection axis in the width direction in the width direction;
The first polarizing film in which the linearly polarized light separating film supplied by the second optical film supply unit is bonded to the back surface of the optical cell while conveying the optical cell conveyed by the conveying unit. And a second bonding portion that is bonded along the supply direction of the linearly polarized light separating film from another set of sides of the optical cell facing each other.

  According to this structure, the 1st polarizing film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a storage part, a linearly polarized light separation film is supplied continuously from a roll, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on the surface on the back side of the optical cell. As a result, an optical display panel with high light utilization efficiency in which the first polarizing film and the linearly polarized light separating film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

As one embodiment of the invention, the linearly polarized light separating film is obtained by cutting a strip-like linearly polarized light separating film having a reflection axis in the width direction in the width direction,
The first optical film supply unit supplies the polarizing film while making the absorption axis of the polarizing film parallel to a direction orthogonal to the supply direction of the polarizing film.

  According to this configuration, since the transport lines of the first polarizing film and the linearly polarized light separating film can be arranged parallel to each other, the space occupied by the apparatus can be reduced.

As one embodiment of the invention, a third optical film for supplying the second polarizing film obtained by cutting the strip-shaped second polarizing film having an absorption axis in the longitudinal direction in the width direction from a third optical film roll A supply section;
While transporting the optical cell transported by the transport unit, the second polarizing film supplied by the third optical film supply unit is moved from the other side of the optical cell facing the second polarized light. It further includes a third bonding portion that is bonded to the surface on the viewing side of the optical cell along the film supply direction.

  According to this configuration, a high-contrast optical display panel in which the absorption axes of the viewing-side polarizing film and the back-side polarizing film are orthogonal to each other can be produced continuously with a high yield.

As one embodiment of the invention, a third optical film supply unit that takes out and supplies the second polarizing film from the storage unit in which the second polarizing film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the second polarizing film supplied by the third optical film supply unit is disposed on the viewing side of the optical cell along the supply direction of the second polarizing film. A third bonding part to be bonded to the surface is further included.

  According to this configuration, a high-contrast optical display panel in which the absorption axes of the viewing-side polarizing film and the back-side polarizing film are orthogonal to each other can be produced continuously with a high yield. In addition, as long as the bonding direction of the 2nd polarizing film with respect to an optical cell is arrange | positioned so that the absorption axis of the polarizing film of a visual recognition side and the polarizing film of a back side may mutually orthogonally cross, for example, one set of optical cells which oppose It may be bonded from the side or from another set of sides facing the optical cell.

  As one embodiment of the invention, the optical cell is a VA mode or IPS mode liquid crystal cell.

  The present invention is particularly suitable for continuously producing a high-contrast VA mode or IPS mode liquid crystal display panel with a high yield.

Another aspect of the present invention is a method for continuously producing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
The first optical film obtained by cutting the band-shaped first optical film in the width direction is supplied from the first optical film roll, and while transporting the optical cell, the first optical film is removed from the optical cell. A first bonding step of bonding to one surface of the optical cell along the supply direction of the first optical film from a pair of opposing sides;
The second optical film is taken out and supplied from the storage unit in which the second optical film in a single wafer state is stored, and the first optical film is bonded to one surface of the optical cell while transporting the optical cell. And a second laminating step of laminating along the supply direction of the second optical film from one set of opposing sides of the optical cell or from another set of opposing sides.

According to this structure, the 1st optical film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a roll, the 2nd optical film is supplied continuously from a accommodating part, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on one surface of the optical cell. As a result, an optical display panel in which the first optical film and the second optical film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the invention, the second optical film obtained by cutting in the width direction the band-shaped second optical film that cannot be continuously laminated due to the arrangement relationship in the band-shaped first optical film and the optical display panel. The housing | casing process which accommodates in the said accommodating part is further included.

Another aspect of the present invention is a method for continuously producing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A pair of the optical cells facing each other on one surface of the optical cell while taking out and supplying the first optical film from the accommodating portion in which the first optical film in a single wafer state is accommodated. A first laminating step of laminating along the supply direction of the first optical film from the other side or another set of opposing sides;
The second optical film obtained by cutting the belt-shaped second optical film in the width direction was supplied from the second optical film roll, and was bonded to one surface of the optical cell while transporting the optical cell. A second laminating step of laminating along the supply direction of the second optical film on the first optical film from another set of sides facing the optical cell.

  According to this structure, the 1st optical film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a storage part, the 2nd optical film is supplied continuously from a roll, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on one surface of the optical cell. As a result, an optical display panel in which the first optical film and the second optical film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the above invention, the first optical film obtained by cutting in the width direction the belt-shaped second optical film and the belt-shaped first optical film that cannot be continuously laminated due to the arrangement relationship in the optical display panel. The housing | casing process which accommodates in the said accommodating part is further included.

Another aspect of the present invention is a system for continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply unit for supplying the first optical film obtained by cutting the belt-shaped first optical film in the width direction from a first optical film roll;
While transporting the optical cell transported by the transport unit, the first optical film supplied by the first optical film supply unit is moved from the pair of sides facing the optical cell to the first optical film. A first bonding portion to be bonded to one surface of the optical cell along the supply direction;
A second optical film supply unit that takes out and supplies the second optical film from the storage unit in which the second optical film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the second optical film supplied by the second optical film supply unit on the first optical film bonded to one surface of the optical cell, A second laminating portion for laminating along a supply direction of the second optical film from one set of opposing sides of the optical cell or from another set of opposing sides.

According to this structure, the 1st optical film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a roll, the 2nd optical film is supplied continuously from a accommodating part, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on one surface of the optical cell. As a result, an optical display panel in which the first optical film and the second optical film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the invention, the second optical film is obtained by cutting in the width direction the belt-shaped second optical film that cannot be continuously laminated due to the arrangement relationship between the belt-shaped first optical film and the optical display panel. It is obtained.

Another aspect of the present invention is a system for continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply unit that takes out and supplies the first optical film from the storage unit in which the first optical film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the first optical film supplied by the first optical film supply unit is made to face one set of sides of the optical cell or another set facing each other. A first bonding part that is bonded to the surface on the back side of the optical cell along the supply direction of the first optical film from the side of the first optical film;
A second optical film supply unit for supplying the second optical film obtained by cutting the belt-shaped second optical film in the width direction from a second optical film roll;
The first optical film in which the second optical film supplied by the second optical film supply unit is bonded to the back side surface of the optical cell while the optical cell conveyed by the conveyance unit is conveyed. And a second bonding portion that is bonded along the supply direction of the second optical film from another set of sides of the optical cell facing each other.

  According to this structure, the 1st optical film which cannot be laminated | stacked continuously in the state of a strip | belt-shaped film is supplied continuously from a storage part, the 2nd optical film is supplied continuously from a roll, and each supply direction is an optical cell as it is. By making it the bonding direction with respect to, high yield and continuous lamination can be performed on one surface of the optical cell. As a result, an optical display panel in which the first optical film and the second optical film are laminated in an appropriate arrangement relationship can be produced at a high yield and continuously.

  As one embodiment of the invention, the first optical film is obtained by cutting in the width direction the belt-shaped second optical film and the belt-shaped first optical film that cannot be laminated continuously due to the arrangement relationship in the optical display panel. It is obtained.

  As one embodiment of the invention, the first optical film has a slow axis in a direction that forms an angle of 67.5 degrees with the band-shaped λ / 4 retardation film having a slow axis in the longitudinal direction. Is a band-shaped broadband retardation film laminated with a λ / 2 retardation film having the above, and the second optical film is a polarizing film having an absorption axis in the longitudinal direction.

  According to this configuration, an optical display panel including a broadband circular polarizing film in which a λ / 4 retardation film, a λ / 2 retardation film, and a polarizing film are laminated in an appropriate arrangement order in this order is produced at a high yield and continuously. can do.

As one embodiment of the invention, the first optical film is a λ / 4 retardation film having a slow axis in the width direction,
The second optical film is a λ / 2 retardation film having a slow axis in a direction forming an angle of 67.5 degrees with respect to the longitudinal direction;
A polarizing film obtained by cutting a strip-shaped polarizing film having an absorption axis in the longitudinal direction in the width direction is supplied from the fourth optical film roll, and is attached to one surface of the optical cell while transporting the optical cell. The 4th bonding process (3rd layer bonding process) bonded along the supply direction of the said polarizing film from the pair of edge | side side which the said optical cell opposes on the combined (lambda) / 2 phase difference film further. Including.

  According to this configuration, an optical display panel including a broadband circular polarizing film in which a λ / 4 retardation film, a λ / 2 retardation film, and a polarizing film are laminated in an appropriate arrangement order in this order is produced at a high yield and continuously. can do.

  As one embodiment of the invention, the optical cell is an organic EL cell.

  The present invention is particularly suitable for high yield and continuous production of an organic EL display panel provided with an antireflection function by a broadband circularly polarizing film.

  As one embodiment of the invention, the second polarizing film obtained by cutting the strip-shaped second polarizing film having an absorption axis in the longitudinal direction in the width direction is supplied from a third optical film roll, and the optical cell A third laminating step of laminating to the other surface of the optical cell along the supply direction of the second polarizing film from another set of sides facing the optical cell.

  As one embodiment of the invention, the second polarizing film in the single-wafer state is taken out from the housing part in which the second polarizing film in the single-wafer state is accommodated, and the second polarizing film is provided on the other surface of the optical cell. The 3rd bonding process bonded together along the supply direction is further included.

  As one embodiment of the invention, before the third laminating step, it faces the pair of sides facing the optical cell on which the first polarizing film is bonded with respect to the transport direction of the optical cell. It further includes an arrangement replacement step of exchanging the arrangement relationship with the set of sides.

As one embodiment of the invention, the first optical film is a band-like λ / 4 retardation film having a slow axis in the width direction,
The second optical film is a band-shaped λ / 2 retardation film having a slow axis in a direction forming an angle of 67.5 degrees with respect to the longitudinal direction;
A fourth optical film supply unit for supplying a polarizing film obtained by cutting a strip-shaped polarizing film having an absorption axis in the longitudinal direction in the width direction from a fourth optical film roll;
While transporting the optical cell transported by the transport unit, the polarizing film supplied by the fourth optical film supply unit on the λ / 2 retardation film bonded to one surface of the optical cell, It further includes a fourth bonding portion (third layer bonding portion) bonded along the supply direction of the polarizing film from a pair of sides facing the optical cell.

  According to this configuration, an optical display panel including a broadband circular polarizing film in which a λ / 4 retardation film, a λ / 2 retardation film, and a polarizing film are laminated in an appropriate arrangement order in this order is produced at a high yield and continuously. can do.

As one embodiment of the invention, the optical cell is an organic EL cell.

  The present invention is particularly suitable for high yield and continuous production of an organic EL display panel provided with an antireflection function by a broadband circularly polarizing film.

As one embodiment of the invention, a third optical film for supplying the second polarizing film obtained by cutting the strip-shaped second polarizing film having an absorption axis in the longitudinal direction in the width direction from a third optical film roll A supply section;
While transporting the optical cell transported by the transport unit, the second polarizing film supplied by the third optical film supply unit is moved from the other side of the optical cell facing the second polarized light. It further includes a third bonding portion that is bonded to the other surface of the optical cell along the film supply direction.

As one embodiment of the invention, a third optical film supply unit that takes out and supplies the second polarizing film from the storage unit in which the second polarizing film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the second polarizing film supplied by the third optical film supply unit is moved along the second polarizing film supply direction to the other surface of the optical cell. It further contains the 3rd bonding part bonded together.

  As one Embodiment of the said invention, the said conveyance part opposes the said optical cell with which the said 1st polarizing film was bonded with respect to the conveyance direction of the said optical cell before the bonding process by the said 3rd bonding part. It further includes an arrangement replacement unit for exchanging the arrangement relationship between the one set of sides and the other set of opposite sides.

  In this specification, as a method of supplying an optical film from an optical film roll, for example, (1) a belt-like laminated optical film in which a belt-like optical film is laminated on a carrier film is fed out from the optical film roll. A method of supplying an optical film obtained by cutting the optical film in the width direction, (2) From the optical film roll (notched optical film roll), a plurality of score lines in the width direction are formed on the carrier film. Examples of the method include a method of feeding a belt-shaped laminated optical film formed by laminating the formed belt-shaped optical film and supplying the optical film, and any of them can be used.

Schematic of the continuous manufacturing system of the optical display panel of Embodiment 1. The figure which shows the 1st bonding part of Embodiment 1. The figure which shows the 2nd bonding part of Embodiment 1. The figure which shows the 3rd bonding part of Embodiment 1. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Flowchart illustrating the order in which the first, second and third optical films are stacked on the optical cell. Schematic of the continuous manufacturing system of the optical display panel of Embodiment 2. The figure which shows the 1st bonding part of Embodiment 2. FIG. The figure which shows the 2nd bonding part of Embodiment 2. FIG. Diagram showing the process of laminating a linearly polarized light separating film on a band-shaped polarizing film

<Embodiment 1>
1 and 2A to 2C are schematic views of a continuous manufacturing system for an optical display panel according to Embodiment 1. FIG. Hereinafter, the continuous manufacturing system of the optical display panel according to the present embodiment will be specifically described with reference to FIGS. 1 and 2A to 2C.

  In this embodiment, a horizontally long liquid crystal cell is used as an optical cell, and a horizontally long liquid crystal display panel is used as an example of an optical display panel. As an optical film roll, what is shown to FIG. 1, FIG. That is, as the first optical film roll 1, a strip-shaped first polarizing film 11 (corresponding to the first optical film) having an absorption axis in the longitudinal direction is laminated on the first carrier film 12, and the liquid crystal cell P The belt-shaped first laminated optical film 10 having a width corresponding to the long side is wound.

  As the single-wafer linearly polarized light separating film 21, a strip-like linearly polarized light separating film 21 (corresponding to the second optical film) having a reflection axis in the width direction is laminated on the second carrier film 22 as described later. It manufactures using the 2nd optical film roll 2 by which the strip | belt-shaped 2nd lamination | stacking optical film 20 which becomes this was wound.

  As the third optical film roll 3, a strip-shaped second polarizing film 31 (corresponding to the third optical film) having an absorption axis in the longitudinal direction is laminated on the third carrier film 32, and the short side of the liquid crystal cell P The belt-shaped third laminated optical film 30 having a width corresponding to is wound.

  Furthermore, in this embodiment, the strip | belt-shaped 1st polarizing film 11 has a strip | belt-shaped film main body 11a and the adhesive 11b, as shown to FIG. 2A. As shown in FIG. 2B, the strip-shaped linearly polarized light separating film 21 is configured to include a strip-shaped film main body 21a and an adhesive 21b. As shown in FIG. 2C, the strip-shaped second polarizing film 31 includes a strip-shaped film body 31a and an adhesive 31b.

  As shown in FIG. 1, the continuous manufacturing system 100 for a liquid crystal display panel according to the present embodiment includes a series of transport units X that transport the liquid crystal cells P and the liquid crystal display panel LD, a first optical film supply unit 101, The 1st bonding part 81, the 2nd optical film supply part 102, the 2nd bonding part 82, the 3rd optical film supply part 103, and the 3rd bonding part 83 are included.

(Transport section)
The transport unit X transports the liquid crystal cell P and the liquid crystal display panel LD. The conveyance unit X includes a plurality of conveyance rollers X1, a suction plate, and the like. In addition, although mentioned later for details, in this embodiment, the conveyance part X is the length of the liquid crystal cell P with respect to the conveyance direction of the liquid crystal cell P between the 2nd bonding part 82 and the 3rd bonding part 83. An arrangement replacement unit 75 for exchanging the arrangement relationship between the sides and the short sides and exchanging the upper and lower surfaces is included.

(First optical film supply unit)
The first optical film supply unit 101 is obtained by cutting the strip-shaped first polarizing film 11 having a width corresponding to the long side of the liquid crystal cell P in the width direction with a length corresponding to the short side of the liquid crystal cell P. The first polarizing film 111 is supplied from the first optical film roll 1 to the first bonding unit 81. Therefore, in this embodiment, the 1st optical film supply part 101 is the 1st delivery part 101a, the 1st cutting part 41, the 1st tension adjustment part 51, the 1st peeling part 61, the 1st winding part 71, and several Transport roller portion 101b.

  The first feeding unit 101 a has a feeding shaft on which the first optical film roll 1 is installed, and feeds the strip-shaped first laminated optical film 10 from the first optical film roll 1. The first feeding unit 101a may be provided with two feeding shafts. Thereby, it is possible to quickly join the roll 1 to the roll film installed on the other feeding shaft without replacing the roll 1 with a new roll.

  The first cutting part 41 includes a cutting unit 41a and a suction unit 41b, and half-cuts the strip-shaped first laminated optical film 10 in the width direction with a length corresponding to the short side of the liquid crystal cell P (first). 1) The band-shaped first polarizing film 11 is cut in the width direction without cutting the carrier film 12). In the present embodiment, the first cutting unit 41 uses the cutting unit 41a to fix the band-shaped first laminated optical film 10 from the first carrier film 12 side by using the suction unit 41b, and fixes the band-shaped first polarized light. The film 11 (the film body 11 a and the adhesive 11 b) is cut in the width direction, and the first polarizing film 111 having a size corresponding to the liquid crystal cell P is formed on the first carrier film 12. The cutting means 41a includes a cutter, a laser device, a combination thereof, and the like.

  The first tension adjusting unit 51 has a function of maintaining the tension of the belt-like first laminated optical film 10. In the present embodiment, the first tension adjusting unit 51 is configured to include a dancer roll, but is not limited thereto.

  The first peeling unit 61 peels the first polarizing film 111 from the first carrier film 12 by folding the belt-shaped first laminated optical film 10 with the first carrier film 12 inside. Examples of the first peeling portion 61 include a wedge-shaped member and a roller.

  The first winding unit 71 winds up the first carrier film 12 from which the first polarizing film 111 has been peeled off. The first winding unit 71 has a winding shaft on which a roll for winding the first carrier film 12 is installed.

(1st bonding part)
The 1st bonding part 81 was supplied by the 1st optical film supply part 101, conveying the liquid crystal cell P conveyed by the conveyance part X, making the short side direction parallel to a conveyance direction (1st peeling part). The first polarizing film 111 (removed by 61) from the long side of the liquid crystal cell P to the surface Pb on the back side of the liquid crystal cell P along the supply direction of the first polarizing film 111 (the short side direction of the liquid crystal cell P). It sticks together through the adhesive 11b. The first bonding unit 81 includes a pair of bonding rollers 81a and 81b, and at least one of the bonding rollers 81a and 81b includes a driving roller.

(Second optical film supply unit)
The second optical film supply unit 102 receives the linearly polarized light separating film 211 (single sheet) from the container 102c in which the single linearly polarized light separating film 211 having a reflection axis (the second laminated optical film 220 in the sheet state) is accommodated. The second laminated optical film 220 in the state is taken out and supplied to the bonding position of the second bonding unit 82. In this embodiment, it takes out and supplies using the 2nd bonding part 82 mentioned later.

(2nd bonding part)
The 2nd bonding part 82 is the linearly polarized light separation film 211 supplied by the 2nd optical film supply part 102, conveying the liquid crystal cell P conveyed by the conveyance part X, making the short side direction parallel to a conveyance direction. Is bonded from the long side of the liquid crystal cell P onto the first polarizing film 111 bonded to the back surface Pb of the liquid crystal cell P.

  The 2nd bonding part 82 is a sheet | seat state 2nd carrier film 221 in the sheet | seat state of the moving part (not shown) which moves the linearly polarized light separation film 211 of a sheet | seat state from the accommodating part 102c to a bonding position. A peeling part (not shown) that peels from the linearly polarized light separating film 211, an adsorbing part 82b that adsorbs the linearly polarized light separating film 211 in a single sheet state (second laminated optical film 220 in a single sheet state), and a bonding roller 82a, And a driving roller 82c that conveys the liquid crystal cell P in contact with the surface of the liquid crystal cell P.

  The storage unit 102c is not limited to the form described in FIGS. 1 and 2B, and may have other shapes, for example, a container having a mounting table on which the linearly polarized light separating film 211 in a single-wafer state is placed. The pedestal may be covered around it.

  The moving unit moves to the single-wafer state linearly polarized light separating film 211 (second single-layer optical film 220 in the single-wafer state) placed in the accommodating portion 102c, and the surface of the linearly polarized light separating film 211 at the adsorbing portion 82b. Is adsorbed and moved to the bonding position.

  The peeling unit peels the second carrier film 221 in a single wafer state from the linearly polarized light separating film 211 in a single wafer state. A 2nd peeling part may peel the 2nd carrier film 221 by bonding an adhesive tape to the 2nd carrier film 221 surface, for example using an adhesive tape, and moving an adhesive tape.

  A single-wafer linearly polarized light separating film 211 adsorbed on the adsorbing portion 82b is sent to the laminating roller 82a at the tip position, and the laminating roller 82a is rotated so that the upper surface of the first polarizing film 111 on the liquid crystal cell P is The linearly polarized light separating film 211 is bonded to the long side. At this time, the driving roller 82c and the bonding roller 82a sandwich the liquid crystal cell P (the first polarizing film 111 is bonded) and the linearly polarized light separating film 211 and convey them downstream. The driving roller 82c and the bonding roller 82a may be driven together, or the driving roller 82b may be driven.

(Manufacture of single-polarized linearly polarized light separating film 211)
The structural example which manufactures the linearly polarized light separation film 211 of a single wafer state in FIG. 2B (lower part) is shown. A second laminated optical film 20 having a belt-like linearly polarized light separating film 21 and a second carrier film 22 is wound around the second roll 2. The width dimension of the strip-shaped linearly polarized light separating film 21 (and the second laminated optical film) is a dimension corresponding to the short side of the liquid crystal cell P (or the first polarizing film). The linearly polarized light separating film has a transmission axis in the longitudinal direction and a reflection axis in the width direction. The second laminated optical film 20 is drawn out from the second roll 2 and is cut into a dimension corresponding to the long side of the liquid crystal cell P (or the first polarizing film) by the second cutting part 42a. The 2nd cutting part 42a cuts so that the 2nd lamination optical film 20 in the state where negative pressure adsorption was carried out with adsorption stand 42b might be completely divided (the 2nd carrier film 22 is also cut). The cut linearly polarized light separating film 211 in a single sheet state (the second carrier film 221 in a single sheet state is stacked) is placed on the container 102c. As described above, the linearly polarized light separating film 211 having a shape corresponding to the back surface of the liquid crystal cell P is manufactured.

(Third optical film supply unit)
The third optical film supply unit 103 is obtained by cutting the strip-shaped third laminated optical film 30 having a width corresponding to the short side of the liquid crystal cell P in the width direction with a length corresponding to the long side of the liquid crystal cell P. The obtained 2nd polarizing film 311 is supplied to the 3rd bonding part 83 from the 3rd optical film roll 3. FIG. Therefore, in the present embodiment, the third optical film supply unit 103 includes a third feeding unit 103a, a third cutting unit 43, a third tension adjusting unit 53, a third peeling unit 63, a third winding unit 73, and a plurality of winding units. A conveyance roller unit 103b is included. Note that the third feeding portion 301a, the third cutting portion 43, the third tension adjusting portion 53, the third peeling portion 63, and the third winding portion 73 are the first feeding portion 101a, the first cutting portion 41, and the first tension, respectively. The adjustment unit 51, the first peeling unit 61, and the first winding unit 71 have the same configuration and function.

(3rd bonding part)
The 3rd bonding part 83 was supplied by the 3rd optical film supply part 103, conveying the liquid crystal cell P conveyed by the conveyance part X, making the long side direction parallel to a conveyance direction (3rd peeling part). The second polarizing film 311 (removed by 63) is applied to the surface Pa on the viewing side of the liquid crystal cell P along the supply direction of the second polarizing film 311 (long side direction of the liquid crystal cell P) from the short side of the liquid crystal cell P. It sticks together through the adhesive 31b. In addition, the 3rd bonding part 83 has a pair of bonding rollers 83a and 83b, and at least one of the bonding rollers 83a and 83b is comprised with a drive roller.

(Replacement Department)
In the present embodiment, the conveyance unit X is arranged between the second bonding unit 82 and the third bonding unit 83 with respect to the conveyance direction of the liquid crystal cell P, and the arrangement relationship between the long side and the short side of the liquid crystal cell P. And an arrangement replacement unit 75 that inverts the front and back of the liquid crystal cell. In the present embodiment, the arrangement replacement unit 75 adsorbs the liquid crystal cell P and rotates it 90 ° horizontally, and adsorbs the liquid crystal cell P, and is in a cell plane parallel or orthogonal to the transport direction of the liquid crystal cell P. And a reversing unit that reverses the front and back of the liquid crystal cell P with the direction as a rotation axis. By including the arrangement replacement unit 75, the bonding direction with respect to the liquid crystal cell P can be made orthogonal to each other without making the conveyance line of the first polarizing film 10 and the conveyance line of the second polarizing film 30 orthogonal to each other. Space can be reduced.

  According to the continuous manufacturing system of the liquid crystal display panel according to the present embodiment, the first polarizing film that cannot be continuously laminated in the state of the belt-like film is continuously supplied from the roll, and the linearly polarized light separating film is continuously supplied from the housing unit. By supplying each and the supply direction as it is as the bonding direction with respect to the optical cell, it is possible to continuously laminate with a high yield on the surface on the back side of the optical cell. Moreover, a 2nd polarizing film can also be continuously supplied from a roll, and can be continuously bonded together to the visual recognition side surface of a liquid crystal cell along the supply direction of a 2nd polarizing film. As a result, the first polarizing film and the linearly polarized light separating film are laminated in an appropriate arrangement relationship on the back surface of the liquid crystal cell, and the second polarizing film is crossed with the first polarizing film and the crossed Nicols on the viewing side surface of the liquid crystal cell. Thus, a liquid crystal display panel with high light utilization efficiency bonded so as to satisfy the above relationship can be produced continuously with a high yield. In the present embodiment, the first optical film supply unit, the second optical film supply unit, and the third optical film are arranged so that the supply directions of the first polarizing film, the linearly polarized light separating film, and the second polarizing film are parallel to each other. Since the supply unit is arranged, the space occupied by the apparatus can be reduced.

(Other embodiments)
In this embodiment, although the 1st bonding part, the 2nd bonding part, and the 3rd bonding part are located in this order along the conveyance direction of liquid crystal cell P by conveyance part X, the 1st bonding part, As long as the order of the 2nd pasting part is maintained in this order, it is not limited to this. For example, the 1st bonding part, the 3rd bonding part, and the 2nd bonding part may be located in this order along the conveyance direction of liquid crystal cell P by conveyance part X, the 3rd bonding part, the 1st The bonding part and the 2nd bonding part may be located in this order.

  In this embodiment, although the 1st bonding part, the 2nd bonding part, and the 3rd bonding part bond a 1st polarizing film, a linearly polarized light separation film, and a 2nd polarizing film from the lower side of a liquid crystal cell, this It is not limited to. Either one or two sheets may be bonded from the upper side of the liquid crystal cell, and the remaining may be bonded from the lower side of the liquid crystal cell, or all may be bonded from the upper side of the liquid crystal cell.

  3A to 3F show examples of the order of the first, second, and third bonding steps, and the direction in which the optical film is bonded in each bonding step. In addition, this embodiment is not restrict | limited to the order of FIG.

  In FIG. 3A, the MD polarizing film is attached to the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (that is, from the short side of the liquid crystal cell) (step S1), and then the MD polarizing film is attached to the liquid crystal cell. Affixed to the viewing side along the long side direction of the liquid crystal cell (that is, from the short side of the liquid crystal cell) (step S2), and then a linearly polarized light separating film (reflective polarizing film) is MD polarized on the back side of the liquid crystal cell The film is pasted on the film along the long side direction of the liquid crystal cell (that is, from the short side of the liquid crystal cell) (step S3).

  In FIG. 3B, the MD polarizing film is attached to the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (step S11), and then the linearly polarized light separating film (reflective polarizing film) is MD on the back side of the liquid crystal cell. On the polarizing film, it is pasted along the long side direction of the liquid crystal cell (step S12), and then the MD polarizing film is pasted on the viewing side of the liquid crystal cell along the long side direction of the liquid crystal cell (step S13). .

  In FIG. 3C, the MD polarizing film is attached to the viewing side of the liquid crystal cell along the long side direction of the liquid crystal cell (step S21), and then the MD polarizing film is attached to the back side of the liquid crystal cell and the short side direction of the liquid crystal cell. (Step S22), and then a linearly polarized light separating film (reflective polarizing film) is pasted on the MD polarizing film on the back side of the liquid crystal cell along the long side direction of the liquid crystal cell (Step S23). .

  In FIG. 3D, the retardation film is pasted on the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (step S31), and then the MD polarizing film is placed on the viewing side of the liquid crystal cell and the long side direction of the liquid crystal cell. (Step S32), and then, the MD polarizing film is pasted on the retardation film on the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (step S33).

  In FIG. 3E, the MD polarizing film is attached to the viewing side of the liquid crystal cell along the long side direction of the liquid crystal cell (step S41), and then the retardation film is attached to the back side of the liquid crystal cell and the short side direction of the liquid crystal cell. (Step S42), and then, the MD polarizing film is pasted on the retardation film on the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (Step S43).

  In FIG. 3F, the retardation film is attached to the back side of the liquid crystal cell along the short side direction of the liquid crystal cell (step S51), and then the MD polarizing film is placed on the retardation film on the back side of the liquid crystal cell. Adhering along the short side direction of the liquid crystal cell (step S52), then, the MD polarizing film is applied to the viewing side of the liquid crystal cell along the long side direction of the liquid crystal cell (step S53).

  In addition, it is only necessary that the absorption axes of the polarizing films on the viewing side and the back side of the liquid crystal cell are orthogonal (crossed Nicols), and the MD polarizing film on the viewing side is pasted along the long side direction of the liquid crystal cell. However, the back side MD polarizing film may be attached along the long side direction of the liquid crystal cell. Moreover, it is not limited to MD polarizing film, A TD polarizing film can also be used.

(Continuous manufacturing method for optical display panels)
The continuous manufacturing method of the optical display panel of Embodiment 1 is a method of continuously manufacturing an optical display panel in which a first polarizing film and a linearly polarized light separating film are laminated in this order on the back surface of the optical cell. The first polarizing film obtained by feeding out a strip-shaped first polarizing film having an absorption axis in the longitudinal direction and cutting the strip-shaped first polarizing film in the width direction is supplied from a first optical film roll, While transporting the optical cell, the first polarizing film is bonded to a surface on the back side of the optical cell along a supply direction of the first polarizing film from a pair of sides facing the optical cell. The linearly polarized light separating film is taken out and supplied from a housing part in which a linearly polarized light separating film having a reflection axis and a single wafer state is housed, and transporting the optical cell, the light On the first polarizing film bonded to the back side surface of the cell, along the supply direction of the linearly polarized light separating film from one set of opposite sides of the optical cell or another set of opposite sides. And a second bonding step for bonding.

  Moreover, the 2nd bonding process further includes the accommodation process which cut | disconnects the strip | belt-shaped linearly polarized light separation film which has a reflective axis in the width direction in the width direction, and accommodates the obtained said linearly polarized light separation film in the said accommodating part, The linearly polarized light separating film is applied to the back surface of the optical cell while supplying the linearly polarized light separating film while the reflection axis of the linearly polarized light separating film is parallel to the supply direction of the linearly polarized light separating film. Further, it is a step of laminating on the first polarizing film along a supply direction of the linearly polarized light separating film from a pair of opposite sides of the optical cell.

<Embodiment 2>
In Embodiment 1, the first polarizing film obtained by cutting the strip-shaped first polarizing film having the absorption axis in the longitudinal direction in the width direction is supplied from the first optical film roll, and while transporting the optical cell, The first polarizing film is bonded to the surface on the back side of the optical cell along the supply direction of the first polarizing film from a pair of sides facing the optical cell (first bonding portion, first bonding). Step), taking out and supplying the linearly polarized light separating film from a housing part in which a single-wafer linearly polarized light separating film having a reflection axis is accommodated, and transporting the optical cell, the surface on the back side of the optical cell On the first polarizing film bonded to the first polarizing film, bonding is performed along the supply direction of the linearly polarized light separating film from one set of opposite sides of the optical cell or another set of opposite sides (second bonding). Joint, No. Bonding step) which was, but is not limited to this.

  In the second embodiment, the first polarizing film is taken out and supplied from a series of transporting units that transport the optical cell and the optical display panel, and a storage unit in which a single-polarized first polarizing film having an absorption axis is stored. 1 optical film supply part and the polarizing film supplied by the first optical film supply part while transporting the optical cell transported by the transport part, A first bonding part that is bonded to the surface on the back side of the optical cell along the supply direction of the first polarizing film from another set of opposite sides, and a strip-shaped linearly polarized light separation having a reflection axis in the width direction. The linearly polarized light separation film obtained by cutting the film in the width direction was transported by the second optical film supply unit that supplies the linearly polarized light separating film from the second optical film roll, and the transport unit. While transporting the optical cell, the linearly polarized light separating film supplied by the second optical film supply unit is placed on the first polarizing film bonded to the back surface of the optical cell. It is the structure containing the 2nd bonding part bonded together along the supply direction of the said linearly polarized light separation film from another set of side which opposes.

  The 1st optical film supply part of Embodiment 2 and the 1st pasting part consist of the 2nd optical film supply part 102 of Embodiment 1, and the 2nd pasting part 82, and the 2nd optical film supply part of Embodiment 2 A 2nd bonding part is comprised with the 1st optical film supply part 101 of Embodiment 1, and the 1st bonding part 81. FIG.

(Continuous manufacturing method for optical display panels)
In the continuous manufacturing method according to the second embodiment, the optical cell is extracted while the first polarizing film is taken out and supplied from the storage unit in which the first polarizing film in a single wafer state having an absorption axis is stored, and the optical cell is conveyed. Bonding to the surface on the back side of the optical cell along the supply direction of the first polarizing film from one set of opposing sides or another set of opposing sides (first bonding step), width direction The linearly polarized light separating film obtained by cutting the strip-shaped linearly polarized light separating film having the reflection axis in the width direction is supplied from the second optical film roll, and the back surface of the optical cell is conveyed while transporting the optical cell. On the first polarizing film bonded to the surface on the side, it is bonded together along the supply direction of the linearly polarized light separating film from another set of sides facing the optical cell (second bonding step). Ah .

  In addition, the band-shaped polarizing film having an absorption axis in the longitudinal direction is cut in the width direction, and further includes an accommodating step of accommodating the obtained first polarizing film in the accommodating portion, and the first bonding step includes the step of The first polarizing film is supplied while transporting the optical cell while making the absorption axis of the first polarizing film parallel to a direction orthogonal to the supply direction of the first polarizing film, and on the surface on the back side of the optical cell. And a step of laminating along the supply direction of the first polarizing film from another set of sides facing the optical cell.

(Change of the bonding method of the second polarizing film)
Similar to the first polarizing film of Embodiment 1 and the linearly polarized light separating film of Embodiment 2, the second polarizing film 31 is bonded to the liquid crystal cell P by the RTP method. It cut | disconnects in the leaf state, takes out and supplies the 2nd polarizing film 31 from the accommodating part in which the 2nd polarizing film 31 of the single wafer state was accommodated, and the liquid crystal cell P of the liquid crystal cell P is supplied along the supply direction of the 2nd polarizing film 31. It may be configured to be bonded to the surface Pa on the viewing side (viewing side bonding portion, viewing side bonding step). For example, the third optical film supply unit and the third bonding unit may have the same configuration as the second optical film supply unit and the second bonding unit. It is suitable when the second polarizing film is a polarizing film that is not suitable for being bonded to a liquid crystal cell by the RTP method or cannot be bonded.

<Embodiment 3>
4 and 5A to 5B are schematic views of a continuous production system for an organic EL display panel according to Embodiment 2. FIG. Hereinafter, the organic EL display panel continuous manufacturing system 400 according to the present embodiment will be described in detail with reference to FIGS. 4 and 5A to 5B.

  In the present embodiment, a horizontally long organic EL cell is used as an optical cell, and a horizontally long organic EL display panel is used as an example of an optical display panel. Moreover, as an optical film roll, what is shown to FIG. 4, FIG. 5A-5B is used. That is, as the first optical film roll 4, the band-shaped λ / 4 retardation film having a slow axis in the longitudinal direction on the first carrier film 412 is in a direction that forms an angle of 67.5 degrees with respect to the longitudinal direction. A strip-like retardation film 411 (corresponding to the first optical film) in which a strip-like λ / 2 retardation film having a slow axis is laminated in this order is laminated, and corresponds to the long side of the organic EL cell EL. A film in which a strip-shaped first laminated optical film 410 having a width is wound is used.

  As a single-wafer polarizing film 521, as described later, a band-shaped polarization separation film 521 (corresponding to a second optical film) having an absorption axis in the longitudinal direction is laminated on a second carrier film 522. The second laminated optical film 520 is manufactured using the second optical film roll 4 wound thereon.

  Furthermore, in this embodiment, as shown in FIG. 5A, the band-shaped broadband retardation film 411 includes a band-shaped film body 411a and an adhesive 411b. As shown in FIG. 5B, the strip-shaped polarizing film 521 includes a strip-shaped film main body 521a and an adhesive 521b.

  As shown in FIG. 4, the organic EL display panel continuous manufacturing system 400 according to this embodiment includes a series of transport units X that transport the organic EL cells EL and the organic EL display panel OEL, and a first optical film supply unit 401. And the 1st bonding part 481, the 2nd optical film supply part 402, and the 2nd bonding part 482 are included.

(Transport section)
The transport unit X transports the organic EL cell EL and the organic EL display panel OEL. The conveyance unit X includes a plurality of conveyance rollers X1, a suction plate, and the like. In addition, although mentioned later for details, in this embodiment, the conveyance part X is the phase difference film 4111 with respect to the conveyance direction of the organic EL cell EL between the 1st bonding part 481 and the 2nd bonding part 482. Includes an arrangement replacement unit 575 for exchanging the arrangement relationship between the long side and the short side of the organic EL cell EL to which is attached.

(First optical film supply unit)
The 1st optical film supply part 401 cut | disconnects the strip | belt-shaped 1st laminated | stacked optical film 410 which has the width | variety corresponding to the long side of the organic EL cell EL in the width direction by the length corresponding to the short side of the organic EL cell EL. The retardation film 4111 obtained in step 1 is supplied from the first optical film roll 4 to the first bonding unit 81. Therefore, in the present embodiment, the first optical film supply unit 401 includes a first feeding unit 401a, a first cutting unit 441, a first tension adjusting unit 451, a first peeling unit 461, a first winding unit 471, and a plurality of winding units. It has a conveyance roller part.

  The first feeding unit 401 a has a feeding shaft on which the first optical film roll 4 is installed, and feeds the strip-shaped first laminated optical film 410 from the first optical film roll 4. The first feeding unit 401a may be provided with two feeding shafts. Thereby, it is possible to quickly join the roll 4 to the roll film installed on the other feeding shaft without replacing the roll 4 with a new roll.

  The first cutting part 441 includes a cutting unit 441a and a suction unit 441b, and half-cuts the strip-shaped first laminated optical film 410 in the width direction with a length corresponding to the short side of the organic EL cell EL ( The belt-like retardation film 411 is cut in the width direction without cutting the first carrier film 412). In the present embodiment, the first cutting unit 441 uses the cutting unit 441a to adsorb and fix the band-shaped first laminated optical film 410 from the first carrier film 412 side using the adsorbing unit 441b. 411 (film body 411a and adhesive 411b) is cut in the width direction to form a retardation film 4111 having a size corresponding to the organic EL cell EL on the first carrier film 412. The cutting means 441a includes a cutter, a laser device, a combination thereof, and the like.

  The first tension adjusting unit 451 has a function of maintaining the tension of the band-shaped first laminated optical film 410. In the present embodiment, the first tension adjusting unit 451 is configured to include a dancer roll, but is not limited thereto.

  The first peeling portion 461 peels the retardation film 4111 from the first carrier film 412 by folding the belt-shaped first laminated optical film 410 with the first carrier film 412 inside. Examples of the first peeling portion 461 include a wedge-shaped member and a roller.

  The first winding unit 471 winds up the first carrier film 412 from which the retardation film 4111 has been peeled off. The first winding unit 471 includes a winding shaft on which a roll for winding the first carrier film 412 is installed.

(1st bonding part)
The 1st bonding part 481 was supplied by the 1st optical film supply part 401, conveying the organic EL cell EL conveyed by the conveyance part X, making the short side direction parallel to a conveyance direction (1st peeling). The surface of the retardation film 4111 (removed by the portion 461) from the long side of the organic EL cell EL along the supply direction of the retardation film 4111 (the short side direction of the organic EL cell EL) on the viewing side of the organic EL cell EL It is bonded to ELb via an adhesive 411b. In addition, the 1st bonding part 481 has a pair of bonding rollers 481a and 481b, and at least one of the bonding rollers 481a and 481b is comprised with a drive roller.

(Second optical film supply unit)
The second optical film supply unit 402 includes a single-wafer polarizing film 5111 (second single-wafer state second film) from a storage unit 402c in which a single-wafer polarizing film 5111 (second multi-layer optical film 5200 single-wafer state) is housed. The laminated optical film 5200) is taken out and supplied to the bonding position of the second bonding unit 482. In this embodiment, it takes out and conveys using the 2nd bonding part 482 mentioned later.

(2nd bonding part)
The second bonding unit 482 transports the polarizing film 5111 supplied by the second optical film supply unit 402 while transporting the organic EL cell EL transported by the transport unit X with its short side direction parallel to the transport direction. The organic EL cell EL is bonded to the wide-side retardation film 4111 bonded to the back surface Pb of the organic EL cell EL from the opposite long side of the organic EL cell EL.

  The 2nd bonding part 482 is a moving part (not shown) which moves the sheet-state polarizing film 5111 from the accommodating part 402c to the bonding position, and the sheet-state 2nd carrier film 5221 is a sheet-state polarizing film. A peeling portion (not shown) that peels from 5111, an adsorbing portion 482b that adsorbs a polarizing film 5111 in a single wafer state (second laminated optical film 5200 in a single wafer state), a bonding roller 482a, and an organic EL cell EL surface And a driving roller 482c that contacts and conveys the organic EL cell EL.

  The storage unit 402c is not limited to the form described in FIGS. 4 and 5B, and may have other shapes. For example, the container 402c may be a container having a mounting table on which the polarizing film 5111 in a single wafer state is mounted. The surroundings may be covered.

  The moving unit moves to the single-wafer polarizing film 5111 (the second laminated optical film 5200 in single-wafer state) placed on the storage unit 102c, and adsorbs the surface of the polarizing film 5111 with the adsorbing unit 482b. Move to the bonding position.

  The peeling unit peels the second carrier film 5221 in a single wafer state from the polarizing film 5111 in a single wafer state. A 2nd peeling part may peel the 2nd carrier film 5221 by sticking an adhesive tape on the 2nd carrier film 5221 surface, for example using an adhesive tape, and moving an adhesive tape.

  A single-wafer polarizing film 5111 adsorbed on the adsorbing portion 482b is sent to the laminating roller 482a at the tip position, and the laminating roller 482a is rotated to be placed on the broadband retardation film 4111 on the organic EL cell EL. The polarizing film 5111 is bonded from the long side. At this time, the organic EL cell EL (the broadband retardation film 4111 is bonded) and the polarizing film 5111 are sandwiched between the driving roller 482c and the bonding roller 482a and conveyed downstream. The driving roller 482c and the bonding roller 482a may be driven together, or the driving roller 482b may be driven.

(Manufacture of polarizing film 5111 in a single wafer state)
FIG. 2B (lower part) shows a configuration example for manufacturing a single-wafer polarizing film 5111. A second laminated optical film 520 having a strip-shaped polarizing film 521 and a second carrier film 522 is wound around the second roll 5. The width dimension of the strip-shaped polarizing film 521 (and the second laminated optical film) is a dimension corresponding to the short side of the organic EL cell EL. The polarizing film has an absorption axis in the longitudinal direction. The second laminated optical film 520 is drawn out from the second roll 5 and is cut into a dimension corresponding to the long side of the organic EL cell EL by the second cutting portion 442a. The 2nd cutting part 442a cuts so that the 2nd lamination optical film 520 of the state adsorbed by negative pressure with adsorption stand 442b may be completely divided (the 2nd carrier film 522 is also cut). The cut sheet-shaped polarizing film 5111 (the sheet-shaped second carrier film 5221 is laminated) is placed on the container 402c. As described above, the polarizing film 5111 having a shape corresponding to one surface of the organic EL cell EL is manufactured.

(Replacement Department)
In this embodiment, the conveyance part X is between the 1st bonding part 481 and the 2nd bonding part 482, with respect to the conveyance direction of the organic EL cell EL, with the long side and short side of the organic EL cell EL. An arrangement replacement unit 475 that replaces the arrangement relationship is included. In the present embodiment, the arrangement replacement unit 475 has a rotating unit that sucks the organic EL cell EL and horizontally rotates it by 90 °. By including the arrangement replacement unit 475, the bonding direction for the organic EL cell EL can be orthogonal to each other without orthogonally crossing the conveyance line of the band-shaped broadband retardation film and the conveyance line of the band-shaped polarizing film, Equipment space can be reduced.

  According to the continuous manufacturing system of the organic EL display panel according to the present embodiment, the broadband retardation film that cannot be continuously laminated in the state of the belt-like film is continuously supplied from the roll, and the polarizing film is continuously supplied from the housing unit. Supplying each, and making each supply direction into the bonding direction with respect to an optical cell as it is can be laminated | stacked on one surface of an organic EL cell continuously with a high yield. As a result, an organic EL display panel in which a broadband retardation film and a polarizing film are laminated in an appropriate arrangement relationship can be produced with a high yield and continuously.

  As another embodiment of the above-mentioned Embodiment 3, it is the composition which further contains the 3rd pasting part. A 3rd bonding part supplies the said 3rd optical film obtained by cut | disconnecting a strip | belt-shaped 3rd optical film in the width direction from a 3rd optical film roll, While conveying the said optical cell, the said optical cell Are bonded to the surface on the back side of the optical cell (the surface on which the first optical film and the second optical film are not bonded) along the supply direction of the third optical film from another set of sides facing each other. In addition, the third bonding unit takes out and supplies the third optical film in the single-wafer state from the container in which the third optical film in the single-wafer state is accommodated, and the supply direction of the third optical film The optical cell is bonded to the back surface (the surface on which the first optical film and the second optical film are not bonded).

(Continuous manufacturing method for optical display panels)
The continuous manufacturing method of an optical display panel according to Embodiment 3 is a method for continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell, and has a strip shape. The first optical film obtained by cutting the first optical film in the width direction is supplied from the first optical film roll, and while transporting the optical cell, the first optical film is opposed to the optical cell. A first bonding step for bonding to one surface of the optical cell along the supply direction of the first optical film from a set of sides, and a storage unit storing the second optical film in a single wafer state A second optical film is taken out and supplied, and the pair of sides or pairs of the optical cells facing each other is placed on the first optical film bonded to one surface of the optical cell while transporting the optical cell. From another set of sides which includes a second bonding step of bonding along the feed direction of the second optical film.

  As another embodiment, the first optical film has a slow axis in a direction forming an angle of 67.5 degrees with respect to the longitudinal direction of the band-shaped λ / 4 retardation film having a slow axis in the longitudinal direction. A band-shaped broadband retardation film obtained by laminating a λ / 2 retardation film, and the second optical film is a polarizing film having an absorption axis in the longitudinal direction.

<Embodiment 4>
The manufacturing system according to Embodiment 4 takes out the first optical film from a series of transport units that transport the optical cells and the optical display panel, and a storage unit that stores the first optical film in a single wafer state, and supplies the first optical film. While conveying the optical cell conveyed by the optical film supply unit and the conveyance unit, the first optical film supplied by the first optical film supply unit A first bonding portion to be bonded to a surface on the back side of the optical cell along the supply direction of the first optical film from another set of sides facing each other, and a band-shaped second optical film are cut in the width direction. A second optical film supply unit that supplies the second optical film obtained from the second optical film roll, and the second optical film while transporting the optical cell transported by the transport unit. The second optical film supplied by the film supply unit is placed on the first optical film bonded to the surface on the back side of the optical cell from the other side of the optical cell facing the second optical film. The 2nd bonding part bonded together along the supply direction of an optical film is included.

(Production method)
In the manufacturing method of Embodiment 4, the first optical film is taken out and supplied from the storage unit in which the first optical film in a single wafer state is stored, and while transporting the optical cell, on one surface of the optical cell, A first laminating step for laminating along the supply direction of the first optical film from a pair of sides facing the optical cell or another side facing each other, and a band-shaped second optical film in the width direction The second optical film obtained by cutting into the second optical film is supplied from the second optical film roll, and while transporting the optical cell, on the first optical film bonded to one surface of the optical cell, And a second laminating step of laminating along the supply direction of the second optical film from another set of sides facing the optical cell.

<Embodiment 5>
Embodiment 5 has a 4th bonding part which bonds a 4th optical film further on a 2nd optical film. The first optical film is a λ / 4 retardation film having a slow axis in the width direction, and the second optical film has a slow axis in a direction that forms an angle of 67.5 degrees with respect to the longitudinal direction. / 2 retardation film. A 4th bonding part supplies the polarizing film obtained by cut | disconnecting the strip | belt-shaped polarizing film which has an absorption axis in a longitudinal direction in a width direction from a 4th optical film roll, While conveying the said optical cell, On the λ / 2 retardation film bonded to one surface of the optical cell, the optical cell is bonded along the supply direction of the fourth optical film from a pair of sides facing the optical cell.

  Moreover, it has a 4th bonding part, a 4th bonding part supplies the said 4th optical film obtained by cut | disconnecting a strip | belt-shaped 4th optical film in a width direction from a 4th optical film roll, On the first optical film and the second optical film bonded together on the optical cell along the supply direction of the fourth optical film from another set of sides facing the optical cell while transporting the optical cell. Paste to.

  The 1st bonding part of this embodiment and the 4th bonding part may be the same composition as the 1st bonding part of Embodiment 1 (2), and the 3rd bonding part, and the 2nd bonding of this embodiment. The part may have the same configuration as the second bonding part of the first embodiment.

  According to the continuous manufacturing system according to the present embodiment, a λ / 4 retardation film, a λ / 2 retardation film and a polarizing film, which cannot be continuously laminated in the state of a belt-like film, are continuously supplied from each roll, The directing direction from is directly used as a bonding direction for an optical cell (organic EL cell), and the bonding direction for the organic EL cell is set as a λ / 4 retardation film, a λ / 2 retardation film, and a λ / 2 retardation film. The polarizing film and the polarizing film are relatively perpendicular to each other, so that the organic EL cell can be continuously laminated with a high yield on the surface on the viewing side. As a result, an organic EL display panel provided with an antireflection function by a circularly polarizing film in which a λ / 4 retardation film, a λ / 2 retardation film, and a polarizing film are stacked in an appropriate arrangement relationship can be obtained at a high yield and continuously. Can be produced. In the present embodiment, the first optical film supply unit, the second optical film supply unit, and the fourth optical film supply unit are arranged so that the supply directions of the λ / 4 retardation film, the λ / 2 retardation film, and the polarizing film are parallel to each other. Since the optical film supply unit is disposed, the space occupied by the apparatus can be reduced.

  Further, as another embodiment, the fourth bonding unit takes out and supplies the fourth optical film in the single wafer state from the storage unit in which the fourth optical film in the single wafer state is stored, and the supply direction of the fourth optical film May be bonded onto the first optical film and the second optical film bonded to the optical cell. The structure similar to the 2nd bonding part of Embodiment 1 (2) may be sufficient as the 4th bonding part in this case.

(Modification common to Embodiments 1 to 5)
In Embodiments 1 to 5, an optical film roll in which a belt-like laminated optical film formed by laminating a belt-like optical film on a carrier film is used, but the configuration of the optical film roll is not limited to this. . For example, by appropriately using a belt-shaped laminated optical film formed by laminating a band-shaped optical film in which a plurality of score lines are formed in the width direction on a carrier film (a cut optical film roll). Also good. In addition, a cutting part becomes unnecessary in the optical film supply part which supplies an optical film from the optical film roll with a notch.

  In Embodiments 1 to 5, the cutting unit cuts the belt-shaped optical film in the width direction and forms an optical film having a size corresponding to the optical cell on the carrier film, but from the viewpoint of improving the yield. Cut the band-shaped optical film in the width direction (skip cut) so as to avoid the defective part of the band-shaped optical film, and the optical film of a size corresponding to the optical cell on the carrier film (good product to be bonded to the optical cell) In addition, the optical film including the defect portion may be formed with a size smaller than the optical cell (more preferably with a size as small as possible). As described above, when using an optical film that cannot be laminated continuously in the state of a belt-like film, if one of the long optical films (for example, a polarizing film) is laminated with the other optical film (for example, a linearly polarized light separating film), In the long optical film, a portion (boundary region) where the other optical film is not laminated inevitably and regularly occurs. Therefore, even if the laminated optical film thus formed is skip-cut in the width direction, the boundary region that regularly exists in the laminated optical film must be a defective part, and it is difficult to improve the yield. On the other hand, as in the present invention, a first optical film (for example, a polarizing film) and a second optical film (for example, a linearly polarized light separating film) that cannot be laminated continuously in the state of a belt-like film are continuously supplied from the rolls, respectively. If it is a structure to be bonded to the cell, each optical film supply unit is configured to supply the optical film obtained by skip-cutting the belt-shaped optical film in the width direction from the optical film roll. Can be improved effectively. The first cutting part is configured to cut (skip cut) the band-shaped first optical film in the width direction so as to avoid the defective part of the band-shaped first optical film, and the second cutting part is formed of the band-shaped first optical film. For example, the second optical film may be appropriately combined in such a manner that the second optical film is cut at a length corresponding to the optical cell in the width direction. In the present invention, as each optical film roll, a band-shaped optical film formed in the width direction so that a plurality of score lines avoid a defective portion is laminated on the carrier film, and corresponds to an optical cell on the carrier film. In addition to an optical film of a size (a non-defective optical film to be bonded to an optical cell), an optical film including a defective portion is formed in a size smaller than the optical cell (more preferably in a size as small as possible). Similarly, the yield can be effectively improved by using a roll-shaped laminated optical film (an optical film roll having a cut). In addition, it is preferable that the optical film including the defective portion is peeled off from the carrier film and discharged, or wound around the winding portion together with the carrier film so as not to be bonded to the optical cell. The same applies to the case where an optical film roll with cuts is used or the case where a full cut is used in the width direction of a band-shaped laminated optical film.

  In the first to fifth embodiments, the description was given by taking the horizontally long rectangular optical cell and the optical display panel as an example, but the shape of the optical cell and the optical display panel is another set of sides facing each other. As long as the shape has the following, there is no particular limitation.

(Optical film)
The film body of the polarizing film is, for example, a polarizer (thickness is generally about 1 to 80 μm) and a polarizer protective film (thickness is generally about 1 to 500 μm) attached to one or both sides of the polarizer. Formed without an agent or adhesive. A polarizer usually has an absorption axis in the stretching direction. A polarizing film including a long polarizer having an absorption axis in the longitudinal direction is also referred to as “MD polarizing film”, and a polarizing film including a long polarizer having an absorption axis in the width direction is also referred to as “TD polarizing film”. . Other films constituting the film body include, for example, retardation films such as λ / 4 plates and λ / 2 plates (thickness is generally 10 to 200 μm), viewing angle compensation films, brightness enhancement films, surface protection films, etc. Is mentioned. As for the thickness of a laminated optical film, the range of 10 micrometers-500 micrometers is mentioned, for example.

  As for the film main body of a linearly polarized light separation film, the reflective polarizing film of the multilayer structure which has a reflection axis and a transmission axis is mentioned, for example. The reflective polarizing film can be obtained, for example, by alternately laminating and stretching a plurality of polymer films A and B of two different materials. The refractive index of only material A increases and changes in the stretching direction, birefringence is developed, and the stretching direction having a difference in refractive index at the interface of material AB becomes the reflection axis, and the direction in which no refractive index difference occurs (non-stretching direction). It becomes the transmission axis. This reflective polarizing film has a transmission axis in its longitudinal direction and a reflection axis in its short direction (width direction). As the reflective polarizing film, a commercially available product may be used as it is, or a commercially available product may be used after secondary processing (for example, stretching). As a commercial item, 3M company brand name DBEF and 3M company brand name APF are mentioned, for example.

  The pressure-sensitive adhesive is not particularly limited, and examples thereof include an acrylic pressure-sensitive adhesive, a silicone pressure-sensitive adhesive, and a urethane pressure-sensitive adhesive. The layer thickness of the pressure-sensitive adhesive is preferably in the range of 10 μm to 50 μm, for example. Examples of the peeling force between the pressure-sensitive adhesive and the carrier film include 0.15 (N / 50 mm width sample), but are not particularly limited thereto. The peeling force is measured according to JIS Z0237.

(Carrier film)
As the carrier film, for example, a conventionally known film such as a plastic film (for example, a polyethylene terephthalate film, a polyolefin film, or the like) can be used. In addition, if necessary, an appropriate material according to the prior art such as a silicone-based, long-chain alkyl-based, fluorine-based or molybdenum sulfide-coated material may be used. The carrier film is generally called a release film (separator film).

(Liquid crystal cell, liquid crystal display panel)
The liquid crystal cell has a structure in which a liquid crystal layer is sealed between a pair of substrates (a first substrate (viewing side surface) Pa and a second substrate (back surface) Pb) disposed to face each other. Although any type of liquid crystal cell can be used, it is preferable to use a vertical alignment (VA) mode or in-plane switching (IPS) mode liquid crystal cell in order to achieve high contrast. A liquid crystal display panel has a polarizing film bonded to one or both sides of a liquid crystal cell, and a drive circuit is incorporated as necessary.

(Organic EL cell, organic EL display panel)
The organic EL cell has a configuration in which an electroluminescent layer is sandwiched between a pair of electrodes. As the organic EL cell, for example, an arbitrary type such as a top emission method, a bottom emission method, a double emission method, or the like can be used. The organic EL display panel has a polarizing film bonded to one or both sides of an organic EL cell, and a drive circuit is incorporated as necessary.

1, 2, 3 Optical film roll 81, 82, 83 Bonding part P Liquid crystal cell LD Liquid crystal display panel EL Organic EL cell OEL Organic EL display panel

Claims (8)

A method of continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
The first optical film obtained by cutting the band-shaped first optical film in the width direction is supplied from the first optical film roll, and while transporting the optical cell, the first optical film is removed from the optical cell. A first bonding step of bonding to one surface of the optical cell along the supply direction of the first optical film from a pair of opposing sides;
The second optical film is taken out and supplied from the storage unit in which the second optical film in a single wafer state is stored, and the first optical film is bonded to one surface of the optical cell while transporting the optical cell. And a second bonding step of bonding along the supply direction of the second optical film from one set of opposing sides of the optical cell or another set of opposing sides. Production method.   The accommodation which cuts the beltlike 2nd optical film which cannot be laminated | stacked continuously by the arrangement | positioning relationship in the said 1st optical film and the said optical display panel in the width direction, and accommodates the obtained said 2nd optical film in the said accommodating part The method for continuously producing an optical display panel according to claim 1, further comprising a step. A method of continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A pair of the optical cells facing each other on one surface of the optical cell while taking out and supplying the first optical film from the accommodating portion in which the first optical film in a single wafer state is accommodated. A first laminating step of laminating along the supply direction of the first optical film from the other side or another set of opposing sides;
The second optical film obtained by cutting the belt-shaped second optical film in the width direction was supplied from the second optical film roll, and was bonded to one surface of the optical cell while transporting the optical cell. A second bonding step of bonding on the first optical film along another supply side of the second optical film from another set of sides facing the optical cell. Continuous production of an optical display panel Method.   The accommodation which cuts the beltlike 1st optical film which cannot be laminated | stacked continuously by the arrangement | positioning relationship in the said optical display panel and the said belt shaped 2nd optical film in the width direction, and accommodates the obtained said 1st optical film in the said accommodating part The method for continuously producing an optical display panel according to claim 3, further comprising a step. A system for continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply unit for supplying the first optical film obtained by cutting the belt-shaped first optical film in the width direction from a first optical film roll;
While transporting the optical cell transported by the transport unit, the first optical film supplied by the first optical film supply unit is moved from the pair of sides facing the optical cell to the first optical film. A first bonding portion to be bonded to one surface of the optical cell along the supply direction;
A second optical film supply unit that takes out and supplies the second optical film from the storage unit in which the second optical film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the second optical film supplied by the second optical film supply unit on the first optical film bonded to one surface of the optical cell, A continuous manufacturing system for an optical display panel, comprising: a second bonding portion for bonding along a supply direction of the second optical film from one set of opposite sides of the optical cell or another set of opposite sides. .   The second optical film is obtained by cutting, in the width direction, a band-shaped second optical film that cannot be continuously laminated due to the arrangement relationship between the band-shaped first optical film and the optical display panel. Item 6. An optical display panel continuous manufacturing system according to Item 5. A system for continuously manufacturing an optical display panel in which a first optical film and a second optical film are laminated in this order on one surface of an optical cell,
The first optical film and the second optical film are those that cannot be laminated continuously in the state of a belt-like film due to the arrangement relationship in the optical display panel,
A series of transport units for transporting the optical cell and the optical display panel;
A first optical film supply unit that takes out and supplies the first optical film from the storage unit in which the first optical film in a single wafer state is stored;
While transporting the optical cell transported by the transport unit, the first optical film supplied by the first optical film supply unit is made to face one set of sides of the optical cell or another set facing each other. A first bonding part that is bonded to the surface on the back side of the optical cell along the supply direction of the first optical film from the side of the first optical film;
A second optical film supply unit for supplying the second optical film obtained by cutting the belt-shaped second optical film in the width direction from a second optical film roll;
The first optical film in which the second optical film supplied by the second optical film supply unit is bonded to the back side surface of the optical cell while the optical cell conveyed by the conveyance unit is conveyed. The continuous production system of an optical display panel including the 2nd bonding part bonded together along the supply direction of a said 2nd optical film from another set of edge | side sides which the said optical cell opposes.   The first optical film is obtained by cutting, in the width direction, a belt-shaped first optical film that cannot be continuously stacked due to the arrangement relationship between the belt-shaped second optical film and the optical display panel. Item 8. A continuous manufacturing system for an optical display panel according to Item 7.

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