JP2018072689A - Method for manufacturing an optical display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture an optical display device in which a part of a sheet-like optical functional film protrudes from at least a rear end portion of a panel member, and between the optical functional film and the panel member in the vicinity of the rear end portion of the panel member. Provided is a production method that does not generate bubbles. SOLUTION: This method includes a step of peeling a sheet-like optical functional film together with a pressure-sensitive adhesive layer from a carrier film, and advancing the leading end of the sheet-like optical functional film to a bonding position with the panel member, and bonding the panel member The process which advances to a position and the process of bonding a panel member and a sheet-like optical function film with a pair of bonding roller from the bonding surface front-end | tip of a panel member to a bonding surface rear end in a bonding position are included. The panel member and the sheet-like optical functional film laminate are bonded at a bonding speed of less than 100 mm / sec from a predetermined position of 2 mm or more toward the bonding surface rear end from the bonding surface rear end toward the bonding surface front end. to paste together. [Selection] Figure 4

Description

  The present invention relates to a method of manufacturing an optical display device. More specifically, the present invention provides a laminate of a panel member and a sheet-like optical functional film when the sheet-like optical functional film is bonded to the panel member in a state where a part of the sheet-like optical functional film protrudes from the rear end portion of the panel member. The present invention relates to a method of manufacturing an optical display device that can eliminate bubbles generated near the rear end of a body.

  At the manufacturing site of optical display devices, a roll-to-panel (RTP) manufacturing method is being adopted (for example, Patent Document 1). In the RTP method, an optical display device is usually manufactured as follows. First, a strip-shaped optical film laminate having a predetermined width is unwound from a roll. The band-shaped optical film laminate includes a band-shaped carrier film, an adhesive layer formed on one surface of the carrier film, and an optical film supported on the carrier film via the adhesive layer. It is configured. The optical film may be a single layer or a multilayer. Usually, a cut optical line is continuously formed in the width direction in the drawn strip-shaped optical film laminate, whereby a sheet-like optical functional film is formed between adjacent cut lines.

  The sheet-like optical functional film continuously supported on the carrier film is peeled from the carrier film together with the pressure-sensitive adhesive layer by a peeling means arranged near the bonding position, and sent to the bonding position. In the peeling means, the carrier film side of the optical film laminate is wound around the top of the substantially wedge-shaped peeling means having a top facing the bonding position. The sheet-like optical functional film is a pressure-sensitive adhesive layer from the carrier film by carrying the carrier film wound around the peeling means while folding it back in a direction substantially opposite to the carrying direction of the sheet-like optical functional film toward the bonding position. Is peeled off. The sheet-like optical functional film that has reached the bonding position is bonded to the corresponding bonding surface of the panel member that has been separately conveyed to the bonding position by the bonding means having a pair of bonding rollers.

  On the other hand, in recent years, optical display devices have been further reduced in size, thickness, and weight, and accordingly, not only the frame portion surrounding the liquid crystal display area is narrowed, that is, the frame is narrowed, but also no frame. Is requested. As a method to meet these demands, a technology has been proposed in which a sheet-like optical functional film larger than the panel member is bonded to the panel member, and the excess portion of the film protruding from the end of the panel member is cut along the end of the panel member. (For example, Patent Document 2). In Patent Document 2, the process of separating the surplus portion is performed in a series of manufacturing apparatuses, and in the optical display device obtained as a product from the manufacturing apparatus, the surplus part is separated along the end of the panel member. Thus, the optical functional film has a size corresponding to the bonding surface.

Japanese Patent No. 4377964 JP 2014-228563 A

  In the manufacturing method of the RTP method, the frame-less frame is obtained by sticking the panel member and the sheet-like optical functional film together with the sheet-like optical functional film protruding from the end of the panel member. This can be achieved by cutting along the edge of the panel member.

  However, in the manufacturing method of the RTP method, when the panel member and the sheet-like optical functional film are bonded together with a part of the sheet-like optical functional film protruding from the rear end portion in the transport direction of the panel member. 1, as shown in the example of FIG. 1, the panel member and the sheet-like optical functional film in the vicinity of the rear end portion of the panel member (typically, the position of about 1 mm from the rear end of the bonding surface of the panel member). There is a problem that bubbles are generated between. FIG. 1A is a photograph of air bubbles actually generated between the panel member and the sheet-like optical functional film, and FIG. 1B is a photograph of a laminate of the panel member and the sheet-like optical functional film. It is a schematic diagram by a side view. FIG. 1 shows an example of a state of generation of bubbles when a film is bonded to the CF side panel in a liquid crystal panel having a CF side panel and a TFT side panel. In this case, the rear end of the TFT side panel corresponds to the “rear end” of the panel member in this specification, and the rear end of the bonding surface with the film of the CF side panel is “after the bonding surface” in this specification. It corresponds to the “end”. On the other hand, for example, when a film is bonded to the TFT side panel in the example of FIG. 1, the rear end of the TFT side panel corresponds to the “rear end portion” of the panel member, and the bonding surface to the film of the TFT side panel The rear end corresponds to “the rear end of the bonding surface” in the present specification. In addition, unlike the example of FIG. 1, for example, a panel member in which the TFT side panel and the CF side panel are laminated so that the end surfaces of the respective rear ends are flush with each other is conceivable. The edge part of the rear-end part of a panel member is equivalent to the "bonding surface rear end" in this specification.

  This bubble is formed by pressing the part of the sheet-like optical functional film protruding from the rear end of the bonding surface as it is pasted to the rear end of the bonding surface of the panel member. When pressed in the thickness direction of the panel member, the sheet-like optical functional film that has already been bonded to the panel member in the vicinity of the rear end of the panel member floats with the rear end of the bonding surface of the panel member as a fulcrum It is thought that it occurs in.

  Moreover, when the bonding roller that has been bonded to the rear end of the bonding surface of the panel member presses the portion of the sheet-like optical functional film protruding from the rear end of the bonding surface as it is, it is exposed at the protruding film portion. There exists a possibility that the adhesive agent of an adhesive bond may adhere to a bonding roller.

When manufacturing an optical display device in which a part of the sheet-like optical functional film protrudes from at least the rear end of the panel member, the present invention provides a gap between the optical functional film and the panel member in the vicinity of the rear end of the panel member. It is an object to provide a manufacturing method that does not generate bubbles.
Moreover, this invention provides the manufacturing method in which an adhesive agent does not adhere to a bonding roller, when manufacturing the optical display apparatus from which the part of the sheet-like optical functional film protruded from at least the rear-end part of the panel member. Is another issue.

  Said subject can be solved by making the bonding speed | rate of the panel member and sheet-like optical function film in the rear-end part vicinity of a panel member less than 100 mm / sec.

  The present invention provides a method of manufacturing an optical display device. In the optical display device manufactured by this method, a part of the sheet-like optical functional film protrudes from at least the rear end of the panel member. This optical display device includes a carrier film, a pressure-sensitive adhesive layer formed on the carrier film, and a belt-like optical functional film continuously supported on the carrier film via the pressure-sensitive adhesive layer From the optical film laminate, the sheet-like optical functional film is peeled off together with the pressure-sensitive adhesive layer, and the sheet-like optical functional film is partially protruded from at least the rear end of the panel member. It is manufactured by bonding to the bonding surface of a panel member with a pair of bonding rollers.

  This method peels the sheet-like optical functional film from the carrier film together with the pressure-sensitive adhesive layer by conveying the carrier film while folding it back with a peelable body, and the leading end of the sheet-like optical functional film to the bonding position with the panel member. In the step of advancing, the step of advancing the panel member to the bonding position, and the bonding position, from the front end of the bonding surface of the panel member to the rear end of the bonding surface, the panel member and the sheet-like optical functional film with a pair of bonding rollers And a step of bonding. In this method, the panel member and the sheet-like optical function are bonded at a bonding speed of less than 100 mm / sec from a predetermined position of 2 mm or more toward the bonding surface rear end from the bonding surface rear end toward the bonding surface front end. The film laminate is bonded together.

  In one embodiment, the pressing force applied to the laminate of the panel member and the sheet-like optical function from the pair of bonding rollers when bonding from a predetermined position to the rear end of the bonding surface is 0.3 MPa to 0.00 mm. 4 MPa is preferable.

  In one embodiment, it is preferable that one roller and the other roller of the pair of bonding rollers do not contact each other even after the bonding is finished up to the rear end of the bonding surface.

In the manufacturing method of the RTP method, when the sheet-like optical functional film is protruded from the rear end portion of the panel member and bonded to the panel member, bubbles are generated between the panel member and the sheet-like optical functional film. A photograph and a schematic diagram are shown. The conceptual diagram of the whole structure of the continuous manufacturing apparatus 1 which manufactures an optical display apparatus continuously by one Embodiment of this invention is shown. In one Embodiment of this invention, a series of operation | movement which peels a sheet-like optical function film in a bonding part, and bonds a panel member and a sheet-like optical function film is shown. In one Embodiment of this invention, the change of the bonding speed at the time of bonding a panel member and a sheet-like optical function film is shown.

Embodiments of the present invention will be described below in detail with reference to the drawings. The present invention is not limited to these embodiments.
FIG. 2 is a conceptual diagram of an overall configuration of an apparatus 1 for continuously manufacturing an optical display device according to an embodiment of the present invention. FIG. 3 shows a series of operations in which the sheet-like optical functional film is peeled off and the panel member and the sheet-like optical functional film are bonded together at the bonding portion. FIG. 4 shows a change in the bonding speed when the panel member and the sheet-like optical functional film are bonded together.

  In the continuous production apparatus 1, the optical film laminate F in which the sheet-like optical functional film F1 is continuously laminated in the length direction on the belt-like carrier film F3 via the adhesive layer F2 can be used. . In the continuous production apparatus 1, the sheet-like optical functional film F1 is peeled from the belt-like carrier film F3 together with the adhesive layer F2, and the peeled sheet-like optical functional film F1 is sheeted from at least the rear end PE of the panel member W. The optical display device P is continuously manufactured by sticking to the bonding surface PL of the panel member W using a pair of bonding rollers 23 and 24 in a state where a part of the optical film F1 is protruded. can do.

  The operation of each part of the continuous manufacturing apparatus 1 can be controlled by the control means 51 of the control part 50, and data used in each part is stored in the storage means 52 and used as necessary. In the present invention, the sheet-like optical functional film F1 can include any one of a polarizing film, an antireflection film, a retardation film, a light diffusion film, a brightness enhancement film, a surface protection film, or a combination thereof, and a panel member. W can be a liquid crystal panel, an organic EL panel, or the like.

  The continuous manufacturing apparatus 1 operates as follows. First, the belt-shaped optical film laminate F ′ is unwound from the roll 11. The optical film laminate F ′ is obtained by laminating a belt-like optical functional film F1 ′ on a belt-like carrier film F3 via an adhesive layer F2. Next, in the cutting part 15 provided with a blade provided in the middle of the conveyance path, the adhesive layer F2 and the belt-like carrier film F3 in the width direction of the optical film laminate F ′ with respect to the optical film laminate F ′ A cut line CL that reaches the interface is inserted (this operation is also referred to as “half-cut”). In this way, the optical film laminate F is obtained by inserting the cut lines CL into the optical film laminate F ′. In another embodiment, the optical film laminated body in which the cut line CL was previously formed can also be used. In this case, the cutting part 15 is unnecessary.

  The optical film laminate F includes, as necessary, feed rollers 13 and 17 for feeding the film, dancer rollers 14 and 18 for adjusting the film feed speed, and an exclusion unit for removing the sheet-like optical functional film having defects (see FIG. (Not shown) etc., and sent to the bonding unit 20.

  On the other hand, the panel member W, which is an adherend to which the sheet-like optical functional film F1 is bonded, is fed out, for example, one by one from a magazine (not shown) in which a plurality of panel members W are stored, for example, conveyed by a roller conveyor or the like. It is conveyed by means 30. After the posture of the panel member W is detected by the panel position detection means 33 in the alignment unit 32 and the posture is corrected (alignment) according to the state of deviation of the sheet-like optical functional film F1, the bonding is performed on the bonding unit 20. Sent.

  In the bonding part 20, the sheet-like optical functional film F1 is peeled from the carrier film F3 together with the adhesive layer F2 by the peeling means 21. The peeled sheet-like optical functional film F1 is bonded to the panel member W by the bonding rollers 23 and 24 with a part of the sheet-like optical functional film F1 protruding from at least the rear end portion PE of the panel member W. The

  In addition, in this invention, although the protrusion amount of the sheet-like optical function film F1 from the rear-end part PE is not limited, It is preferable that it is 3 mm or more. If the protruding amount is 3 mm or more, the protruding portion of the sheet-like optical functional film F1 can be more stably cut along the end portion of the panel member W.

  The carrier film F3 after the sheet-like optical functional film F1 and the pressure-sensitive adhesive layer F2 are peeled off is wound up by the winding means 40. The panel laminated body P in which the sheet-like optical functional film F1 is bonded to the panel member W and a part of the sheet-like optical functional film F1 protrudes from at least the rear end portion PE of the panel member W is bonded by the conveying means 30. 20 is carried out.

  Next, the operation | movement in the bonding part 20 is demonstrated using FIG. In FIG. 3, the processing proceeds in the order from (a) to (d). In the bonding part 20, the sheet-like optical functional film F1 is peeled off, the leading end of the sheet-like optical functional film F1 is detected, and the sheet-like optical functional film F1 and the panel member W are bonded together.

  As shown in FIG. 2, the bonding unit 20 includes a peeling means 21 for peeling the sheet-like optical functional film F1 together with the adhesive layer F2 from the belt-like carrier film F3, and the peeled sheet-like optical functional film F1. A tip end detection means 25 for detecting the posture of the tip end portion, and a pair of bonding rollers 23 and 24 for bonding the sheet-like optical functional film F1 and the panel member W through the adhesive layer F2 are provided. .

  As shown in FIG. 3A, the optical film laminate F is conveyed to the bonding unit 20. Note that FIG. 3A shows the panel laminate P immediately after the preceding sheet-like optical functional film F1 is bonded to the panel member W. The optical film laminate F is conveyed along the lower surface of the peeling means 21 on the surface on the carrier film F3 side. The carrier film F <b> 3 is wound around the top portion 22 of the peeling means 21, folded back in a direction substantially opposite to the direction of the bonding position 26, and taken up by the winding means 40.

  Next, as shown in FIG. 3 (b), the sheet-like optical functional film F1 has a carrier film F3 and a pressure-sensitive adhesive layer F2 in the rearward direction when the carrier film F3 is wound by the winding means 40. It peels from the film F3. Although not shown in FIG. 3, preferably, the sheet-like optical functional film F1 and the pressure-sensitive adhesive layer F2 are stopped by driving the winding means 40 when peeled from the tip by a predetermined length, The conveyance to the bonding position 26 direction stops. At this time, the front-end | tip part of the sheet-like optical function film F1 exists in any position between the top part 22 of the peeling means 21, and the bonding position 26, and in this position, the front-end | tip part detection means 25 (refer FIG. 2) To detect the tip.

  If necessary, after the leading end of the sheet-like optical functional film F1 is detected by the leading end detection means 25, the driving of the winding means 40 is resumed. When the carrier film F3 is conveyed again with the resumption of the driving of the winding means 40, the remaining portion of the headed sheet-like optical functional film F1 is peeled off from the carrier film F3 together with the adhesive layer F2. As shown in FIG. 3 (b), the position on the panel member W where the leading end of the sheet-like optical functional film F1 reaches the bonding position 26 is pasted to the bonding position. The panel member W is conveyed so that it may come to 26. At the time when the sheet is conveyed to the bonding position 26, the panel member W is aligned according to the deviation state of the sheet-like optical functional film F1.

  Next, the sheet-like optical functional film F1 and the panel member W are pressed by the laminating rollers 23 and 24 in a state where the front end portion of the sheet-like optical functional film F1 is in contact with the laminating surface PL of the panel member W. With the rotation of the combining rollers 23 and 24, the bonding of the sheet-like optical functional film F1 and the panel member W is started.

  As described above, when manufacturing the panel laminate P in which a part of the sheet-like optical functional film F1 protrudes from the rear end portion PE of the panel member W, the front end PA of the bonding surface PL of the panel member W (hereinafter, When bonding from the bonding surface front end PA) to the rear end PB of the bonding surface PL (hereinafter referred to as the bonding surface rear end PB) at a constant bonding speed used in a normal RTP apparatus, the panel member W The sheet-like optical functional film F1 floats up from the panel member W in the vicinity of the rear end PE (a certain range from the rear end of the panel member toward the tip of the panel member), and the panel member W and the sheet-like optical functional film There is a problem that bubbles are generated between F1. Generation | occurrence | production of this bubble can be avoided by making the bonding speed in the range which a bubble generate | occur | produces low, and making the panel member W and the sheet-like optical function film F1 adhere more strongly.

  Specifically, in the present invention, as shown in FIG. 3C, most of the length d1 from the bonding surface tip PA of the panel member W to the predetermined position PC on the upstream side in the transport direction is For example, bonding is performed at a bonding speed v1 that is normally used in the RTP method. When the bonding between the panel member W and the sheet-like optical functional film F1 reaches the predetermined position PC, the bonding speed between the panel member W and the sheet-like optical functional film F1 is reduced to the speed v2. Then, as shown in Drawing 3 (d), the part of length d2 from predetermined position PC of panel member W to pasting surface rear end PB is panel member W and a sheet-like optical functional film at pasting speed v2. Bonding with F1 is performed.

  FIG. 4 is a diagram illustrating a change in the bonding speed when the sheet-like optical functional film F1 is bonded to the panel member W in the present invention. The horizontal axis of FIG. 4 shows the distance from the bonding surface front end PA of the panel member W to the bonding surface rear end PB, and the vertical axis shows the bonding speed of the sheet-like optical functional film F1 and the panel member W. .

  As shown in FIG. 4, the bonding of the sheet-like optical functional film F1 and the panel member W is started, and the portion from the bonding surface tip PA of the panel member W to the predetermined position PC, that is, the portion of the length d1 Until the bonding, the sheet-like optical functional film F1 and the panel member W are bonded with the bonding speed v1 as the maximum speed.

  Next, when the bonding reaches the predetermined position PC, the bonding speed between the panel member W and the sheet-like optical functional film F1 is reduced to the speed v2. Then, the part from predetermined position PC to the bonding surface rear end PB, ie, the part of length d2, is bonded by bonding speed v2.

  The predetermined position PC of the panel member W is the upstream side in the transport direction (the bonding surface front end PA side) from the position where bubbles are generated, and in the present invention, the length d2 from the predetermined position PC to the bonding surface rear end PB. Is set to 2 mm or more. The length d2 is not limited as long as it is 2 mm or more. However, if it is too long, a portion to be bonded at a low speed becomes long and productivity is lowered.

  The bonding speed v2 is such that the protruding portion of the sheet-like optical functional film F1 from the bonding surface rear end PB is the panel member W by the bonding rollers 23 and 24 that have been bonded to the bonding surface rear end PB of the panel member W. Even when pressed in the thickness direction, the panel member W and the optical function film F1 are sufficiently bonded so that the sheet-like optical function film F1 already bonded to the panel member W does not float in the vicinity of the rear end PB of the bonding surface. It is set to a speed that can be adhered. In the present invention, the bonding speed v2 is less than 100 mm / second.

  The bonding speed v2 is not limited as long as it is less than 100 mm / second, and the slower the speed, the more strongly the panel member W and the optical function film F1 can be bonded. descend. In one embodiment, it is preferable that pasting speed v2 is 5 mm / second or more. The speed at which the portion of length d2 is pasted does not have to be constant, and may vary as long as it is less than 100 mm / second. For example, the bonding speed may be gradually reduced from the predetermined position PC toward the bonding surface rear end PB.

  The pressing force applied to the laminated body of the panel member W and the sheet-like optical functional film F1 from the pair of bonding rollers 23 and 24 is at least a portion from the predetermined position PC of the panel member W to the bonding surface rear end PB ( In the part of the length d2), it is preferably stronger than the pressing force employed in the case of a normal manufacturing method in which a part of the sheet-like optical functional film F1 is not protruded from the rear end PB of the bonding surface. More preferably, it is 0.4 MPa. Thus, since the panel member W and the sheet-like optical functional film F1 are more strongly bonded by bonding with a strong pressing force, the sheet-like optical functional film F1 is more reliably prevented from being lifted from the panel member W. can do. The pressing force may be smaller than 0.3 MPa as long as the generated bubbles do not hinder the product performance. Since the pressing force may cause damage to the panel member W, it is not preferable that the pressing force be greater than 0.4 MPa.

  Further, in the apparatus 1, one roller 23 and the other roller 24 of the pair of bonding rollers 23 and 24 are not in contact with each other after the bonding to the bonding surface rear end PB of the panel member W is finished. It is preferable to be configured. When the pasting rollers 23 and 24 that have been pasted up to the rear end PB of the pasting surface press the portion of the sheet-like optical functional film F1 projecting from the rear end PB of the pasting surface as it is, the adhesive layer F2 of the projecting film portion. There is a possibility that the adhesive may adhere to the bonding roller 23 or 24. By providing an interval between the rollers so that one roller 23 and the other roller 24 do not contact each other even in the closed state, the bonding roller 23 or 24 does not contact the adhesive layer F2, and the adhesive The adhesion of the agent can be prevented.

  Even if the bonding speed v1 for bonding the portion from the bonding surface tip PA of the panel member W to the predetermined position PC, that is, the length d1, is the same as the bonding speed v2, the panel member W and the optical function film There is no problem in bonding F1 itself, but since the bonding time becomes long, the number of production per unit time is sacrificed. Therefore, from the viewpoint of productivity, the bonding speed v1 of the length d1 portion is preferably faster than the bonding speed v2, and more preferably 200 mm / second to 800 mm / second. Moreover, it is preferable that the length bonded at the bonding speed v1 is as long as possible so that the bonding time is as short as possible.

Examples of the present invention and comparative examples will be described below.
Table 1 is a table showing examples and comparative examples of the present invention. When the amount of the sheet-like optical functional film F1 protruding from the rear end portion PE of the panel member W is 3 mm, a predetermined position of the panel member W is shown. When the pressing speed of the bonding speed v2 and the bonding rollers 23 and 24 when bonding the portions of the length d2 from the PC to the rear end PB of the bonding surface and the length d2 is changed, the panel member W It is the result of inspecting whether air bubbles are generated between the panel member W and the sheet-like optical functional film F1 in the vicinity of the end PE. The inspection was performed by visually confirming the presence or absence of bubbles.

  From the results of Examples 1 to 5, in the part of length d2 from the predetermined position PC of the panel member W to the rear end PB of the bonding surface, the panel member W and the sheet shape at a bonding speed v2 of 90 mm / second or less. When the optical functional film F1 was bonded, there was no generation of bubbles, or even if bubbles were generated, there was no problem as a product. However, this is a case where the length d2 is 5 mm or more, and when d2 is shorter than 5 mm, for example, in Comparative Example 1 and Comparative Example 2 (that is, when d2 is 0 or 1 mm), the bonding speed v2 is Bubbles were generated even at 25 mm / sec.

  In addition, as shown in Comparative Example 4, even when the length d2 was 40 mm, bubbles were generated when the bonding speed of the length d2 portion was 150 mm / second.

  When the pressing force applied to the laminate of the panel member W and the sheet-like optical functional film F1 from the pair of bonding rollers 23 and 24 in the length d2 portion is 0.25 MPa, some bubbles In this case, there was no problem as a product.

DESCRIPTION OF SYMBOLS 1 Continuous manufacturing apparatus 11 Rolls 13 and 17 of optical film laminated body F 'Feed roller 14 and 18 Dancer roller 15 Cutting part 20 Pasting part 21 Peeling means 22 Top part 23 and 24 of peeling means Pasting roller 25 Tip part detection means 26 Bonding position 30 Conveying means 32 Positioning section 33 Panel position detecting means 40 Winding means 41 Feed roller 50 Control section 51 Control means 52 Storage means F ', F Optical film laminate F1' Band-shaped optical functional film
F1 Sheet-like optical functional film F2 Adhesive layer F3 Carrier film PA Bonding surface front end PB panel member bonding surface rear end PC Predetermined position on panel member bonding surface PE Panel member rear end PL panel Bonding surface W with sheet-like optical functional film of member Panel member P Panel laminate d1 Length from bonding surface tip PA of panel member to predetermined position PC d2 Bonding surface rear end PB from predetermined position PC of panel member Length v1 Bonding speed v2 from the bonding surface tip PA of the panel member to the predetermined position PC V2 Bonding speed from the predetermined position PC of the panel member to the bonding surface rear end PB

Claims (3)

From a belt-shaped optical film laminate comprising a carrier film, a pressure-sensitive adhesive layer formed on the carrier film, and a sheet-like optical functional film continuously supported on the carrier film via the pressure-sensitive adhesive layer The sheet-like optical functional film is peeled off together with the pressure-sensitive adhesive layer, and a pair of the sheet-like optical functional film is projected in a state in which a part of the sheet-like optical functional film protrudes from at least the rear end portion of the panel member. A method of manufacturing an optical display device by bonding to a bonding surface of the panel member by a bonding roller,
The sheet-like optical functional film is peeled from the carrier film together with the pressure-sensitive adhesive layer by conveying the carrier film while being folded back by a peeling body, and the front end of the sheet-like optical functional film is bonded to the panel member. The process of moving to the position,
A step of advancing the panel member to the bonding position;
In the said bonding position, from the bonding surface front end of the said panel member to the bonding surface rear end, the process of bonding the said panel member and the said sheet-like optical functional film with the said pair of bonding roller,
The panel member and the sheet-like optical function at a bonding speed of less than 100 mm / second from a predetermined position of 2 mm or more toward the bonding surface rear end from the bonding surface rear end toward the bonding surface front end side. A method comprising bonding a film laminate.   The pressure applied to the laminate of the panel member and the sheet-like optical function from the pair of bonding rollers when bonding from the predetermined position to the rear end of the bonding surface is 0.3 MPa to 0.4 MPa. The method of claim 1, wherein: 3. The roller according to claim 1, wherein one roller and the other roller of the pair of bonding rollers do not contact each other even after the bonding is finished up to the rear end of the bonding surface. Method.