TW201915577A - Method for producing laminate of optical display capable of effectively improving the productivity of the production method - Google Patents

Abstract

The invention provides a method for producing laminate of optical display in which one surface of a liquid crystal panel is formed by pre-bonding a second optical film (20) without being exposed from the other surface of the liquid crystal panel so as to perform bonding in a manner of not covering the terminal portion formed on one edge of the long side of the liquid crystal panel and being exposed from the edge other than one edge of the long side of the liquid crystal panel. For one surface of a rectangular liquid crystal panel formed with a terminal portion corresponding to one edge of the long side of the liquid crystal panel, the method is based on: expressions (1) c <= a + d – b, and (2) y = b + d - a > 0, wherein 'a' is the distance from one end of the long side of the liquid crystal panel using the short side as a front end for conveyance to the center line of the liquid crystal panel in the conveyance direction, or the length of 1/2 of the short side width of the liquid crystal panel when the short side is used as a front end for conveyance; 'b' is the distance from one end of the long side of the first optical film sheet using the short side as a front end for conveyance to the center line of the first optical film sheet in the conveyance direction, or the length of 1/2 of the width of the first optical film sheet when the short side is used as a front end for conveyance; 'c' is a width interval of the terminal portion formed on one edge of the long side of the liquid crystal panel relative to the conveyance direction; 'd' is a deviation from the center line of the first optical film sheet which does not cover the attaching position of the terminal portion of the liquid crystal panel; and 'y' is an exposure of the first optical film sheet exposed from the other edge of the long side of the liquid crystal panel. The expressions (1) and (2) express correlation position information. The first optical film sheet is outputted to form a first optical film laminate of continuous film plate by continuously supporting an adhesive layer on a carrier film of continuous film plate. The first optical film sheet together with an adhesive layer is peeled off from the carrier film of continuous film plate, and is then conveyed to the first attaching position. One surface of the liquid crystal panel is formed by bonding the second optical film sheet without being exposed from the other surface of the liquid crystal panel conveyed to the first attaching position so as to perform bonding in a manner of not covering the terminal portion formed on one edge of the long side of the liquid crystal panel and being exposed from the edge other than one edge of the long side of the liquid crystal panel.

Description

Method for manufacturing laminated body of optical display device

The present invention relates to a method for manufacturing a laminated body of an optical display device. More specifically, the present invention relates to a method for manufacturing an optical film sheet including a polarizing film on both sides of a rectangular liquid crystal panel. A method for manufacturing a laminated body of an optical display device by laminating in an orthogonal polarization relationship, wherein an optical film sheet including a polarizing film having a width or a length corresponding to a width or a length of the liquid crystal panel is provided on the other side of the liquid crystal panel One side of a pre-laminated liquid crystal panel is a method for producing a laminated body in which an optical film sheet including a polarizing film is exposed from a side other than the long side of the liquid crystal panel.

At the manufacturing site of the optical display device, a manufacturing method of roll-to-panel (Roll · To · Panel (RTP)) method is adopted (for example, Patent Document 1). In the RTP method, an optical display device is generally manufactured by the following method. First, an optical film laminate having a predetermined width is sent out from a roller. The optical film laminate is composed of a carrier film, an adhesive layer formed on one side of the carrier film, and an optical film including a polarizing film supported on the carrier film by the adhesive layer. The optical film may be a single layer or a plurality of layers. In the optical film laminate to be sent out, an optical film sheet containing a polarizing film is usually formed between adjacent cut-in lines by successively cutting the cut-in lines in the width direction.

The optical film sheet including the polarizing film continuously supported on the carrier film is peeled off from the carrier film together with the adhesive layer by a peeling mechanism arranged near the bonding position, and is sent to the bonding position. In the peeling mechanism, the carrier film side of the optical film laminate is wound around the top of the peeling mechanism having a slightly wedge-shaped peeling mechanism facing the top of the bonding position. The optical film sheet is conveyed by the carrier film wound by the peeling mechanism while being folded in a direction substantially opposite to the transport direction of the optical film toward the bonding position, and is peeled off from the carrier film together with the adhesive layer. . The optical film sheet that has reached the bonding position is bonded to the corresponding bonding surface of the panel that is transported to the special bonding position along the transport path by a bonding mechanism having a pair of bonding rollers. When this is a liquid crystal panel, an optical film sheet including a polarizing film is formed on both sides of the liquid crystal panel so that the absorption axis becomes an orthogonal polarization relationship, and a laminated body of an optical display device is sequentially laminated.

On the other hand, in recent years, in optical display devices, miniaturization, thickness reduction, and weight reduction have progressed. As a result, not only has the frame portion surrounding the liquid crystal display area been narrowed, but framelessness has been required as a response to this. As a required method, for example, as described in Patent Document 2, an optical film sheet larger than a liquid crystal panel is initially bonded to one surface of the liquid crystal panel, and an optical system exposed from an end portion of one surface of the liquid crystal panel is proposed. The remaining part of the film sheet is cut along the end of the liquid crystal panel, thereby forming a liquid crystal panel with an optical film sheet bonded on one side. Next, a liquid crystal panel with an optical film sheet bonded on one side, an optical film sheet larger than the liquid crystal panel is bonded on the other side, and the remaining portion of the optical film sheet exposed from the end of the other side of the liquid crystal panel is bonded. By cutting along the end of the liquid crystal panel, a manufacturing technique of a laminated body of an optical display device with a narrower frame of a liquid crystal display area is formed.

In Patent Document 2, a process of cutting off the remaining part is performed in a continuous manufacturing apparatus. Specifically, the remaining portion of the optical film sheet which is sequentially laminated on both sides of the liquid crystal panel in the manufacturing apparatus is laminated in a state exposed from all four sides of both sides of the liquid crystal panel each time as a slave. In the optical display device obtained from the finished product of the manufacturing device, all the remaining portions on the four sides are cut off from both sides of the liquid crystal panel along the ends of the two surfaces of the liquid crystal panel, and the optical film sheet becomes a laminated body corresponding to the size of the bonding surface.

As another example, in Patent Document 3 or Patent Document 4, a production system is proposed in which an optical film sheet is exposed and bonded only on one side of a liquid crystal panel, and an optical film sheet is bonded on the other side of the liquid crystal panel without exposing the optical film sheet. Among them, the remaining portion that is exposed and bonded from only one side of the liquid crystal panel is performed by a separation process of a continuous production system, as in the case of Patent Document 2.

Specifically, the remaining portion of the optical film sheet attached to one side of the liquid crystal panel is laminated in a state exposed from all four sides of both sides of the liquid crystal panel as an optical display device obtained from a finished product of the production system because The remaining part of the optical film sheet bonded to one side of the liquid crystal panel is cut along the end of the liquid crystal panel, and on the other hand, the optical film sheet bonded to the other side of the liquid crystal panel is bonded in a non-exposed manner. Therefore, each of the optical film sheets on both sides of the liquid crystal panel has a size corresponding to the bonding surface, and becomes the same laminate as in the case of Patent Document 2.

The laminated body of the optical display device, the absorption axis of the polarizing film of the optical film sheet laminated on both sides of the liquid crystal panel is bonded along the reference line (alignment mark) so as to have an orthogonal polarization relationship in order to realize the liquid crystal. Light switch function of display device. The polarizing film of the optical film sheet further includes a display region having a size on a black matrix inside the liquid crystal panel or a region exceeding the black matrix.

The structure of the laminated body of the optical display device is as shown in the schematic diagram of FIG. 4, and the CF-side member that is the visual side of the liquid crystal panel 51 that includes a glass substrate with a color filter at least on both sides of the liquid crystal is clear. And a member on the TFT side that is the non-visual side of the other surface 52 of the liquid crystal panel including a light distribution film and a glass substrate with a transparent electrode interposed therebetween. In general, one of the long sides of the other side 52 of the liquid crystal panel has a structure in which the terminal portion 50 with a built-in transparent electrode is provided on one side of the protruding portion that protrudes from the corresponding one side of the one side of the liquid crystal panel. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Patent No. 4377964 [Patent Document 2] JP 2014-228563 [Patent Document 3] JP 2013-137538 [Patent Document 4] JP 2014-224911

[Problems to be solved by the invention]

The framelessness of the optical display device is achieved by bonding the liquid crystal panel and the optical film to the exposed state of the optical film sheet from the end of the liquid crystal panel in the RTP manufacturing method, and then removing the optical film sheet from The remaining portion exposed at the end portion is cut along the end portion of the liquid crystal panel to achieve it. However, as proposed in Patent Documents 2 to 4, in a continuous manufacturing line, when the remaining portion of the peripheral edge is cut off after being exposed and bonded from the end of the liquid crystal panel, it is necessary to precisely cut off the remaining portion. Over time, productivity declines significantly.

Here, according to a customer with a liquid crystal panel manufacturing process such as a panel manufacturer, how to cut off the remaining part of the periphery, specifically whether to cut off along the end of the liquid crystal panel, or whether to set a few centimeters The degree of freedom such as exposing the tape and cutting, and the cutting process of the remaining part of the perimeter are made by customers who wish to carry out another project. In response to such a requirement, it is required to provide the optical display device without cutting off the remaining portion of the peripheral edge of the liquid crystal panel where the optical film sheet is exposed on the visual side of the liquid crystal panel, and the large portion of the liquid crystal panel is left behind. Laminated body.

However, in the RTP method, if the remaining portion of the peripheral edge of the liquid crystal panel is not cut off in a continuous manufacturing line and the remaining portion of the optical film sheet is left to provide a laminate, the liquid crystal panel and the optical film sheet are provided. After bonding the liquid crystal panel and the optical film in a state exposed from both sides of both sides of the liquid crystal panel, when the optical film sheet includes a polarizing film, in order to make the absorption axis of the polarizing film into an orthogonal polarization relationship, it is confirmed that The alignment marks of the reference points in the display area of the liquid crystal panel become difficult. Therefore, alignment of the optical film sheet including the liquid crystal panel and the polarizing film becomes difficult.

In all manufacturing devices and manufacturing methods of the RTP method described in Patent Documents 2 to 4, in the manufacturing process or the production system, the liquid crystal panel is exposed and attached, and the entire remaining portion of the optical film sheet is cut off as a reason. The optical display device obtained from the product manufactured in this way is needless to say. Of course, the optical display device is formed of a laminate without an exposed portion of the optical film sheet, and is not the above-mentioned laminate according to customer requirements.

In addition, the embodiments disclosed in Patent Documents 3 and 4 only disclose that the optical film sheet is bonded from the four sides when the TFT side that is the non-visual side of the liquid crystal panel is exposed, and the optical side is not exposed on the CF side that is the visual side. A structure in which the film sheets are bonded together. In Patent Documents 3 and 4, it is not disclosed that the optical film sheet is bonded without exposing the optical film sheet on the TFT side which is the non-visual side of the liquid crystal panel, and the optical film sheet is bonded on the CF side which is the visual side. The composition of the laminated body. This is not a laminated body of the above-mentioned optical display device according to the customer's request.

Another technical problem is that even if the optical film sheet is exposed by CF which is the visual side of the liquid crystal panel, the remaining part is all four sides of the laminated body of the optical display device, and the customer performs the process through another process. When cutting the remaining portion of the peripheral edge, the danger of damaging the terminal portion 50 built in the transparent electrode provided on the visual side of the protruding portion protruding beyond the corresponding one side of the non-visual side of the liquid crystal panel cannot be removed. The present invention has been achieved by challenging this technical problem. [Means to solve the problem]

The above-mentioned subject can be bonded to the CF side of the visual side of the liquid crystal panel by an optical film sheet having a width or length corresponding to the width or length of the liquid crystal panel on the surface of the TFT side that becomes the non-visual side of the liquid crystal panel. The surface is solved by bonding the optical film sheet so as not to cover the terminal portion on one side of the long side of the liquid crystal panel, and exposing from the other side than the long side of the liquid crystal panel.

According to such a laminated body of an optical display device, the process of cutting off the remaining portion of the optical film sheet laminated and exposed from the liquid crystal panel can be suitably performed outside the method of manufacturing a laminated body of an optical display device Can greatly improve productivity.

In addition, according to the method of the present invention, the optical film sheet that is the surface on the TFT side of the non-visual side of the liquid crystal panel and the optical film sheet that is the surface on the CF side of the liquid crystal panel are made of a polarizing film together. Only in such overlapping positions is the relationship of orthogonal polarization.

Therefore, the optical film sheet on the CF side surface on the visual side can easily read the alignment mark of the liquid crystal panel or the edge of the liquid crystal panel on the outer periphery of the optical film sheet on the TFT side surface on the non-visual side. Etc. It is possible to realize a process of accurately cutting off the remaining part.

Furthermore, since the optical film sheet is laminated on the surface of the CF side that becomes the visual side when the optical display device is assembled, the optical film sheet is exposed from the other side than the long side of the liquid crystal panel. Borderless.

The present invention provides, for example, a method for manufacturing a laminated body 6 of an optical display device using the first bonding device 100 shown in FIG. 3. As shown in FIG. 1, the entire apparatus 1 for realizing the present invention will be briefly described here. The device 1 includes a second bonding device 200 for carrying out the pretreatment process of the present invention, and the liquid crystal panel 5 that has been sucked and fixed to the positioning mechanism 81 of the second bonding device 200 along the transport path 30 from an upstream process. On the other side 52 of the liquid crystal panel 5 after completion of the pre-processing process, the second optical film sheet 20 (FIG. 2) is pre-attached, and the liquid crystal panel 5 that has been rotated in the reverse rotation portion 300 is transported along the transport path 30. In this process, the first surface 51 of the liquid crystal panel 5 that is transported by being held and fixed to the alignment mechanism 80 is bonded to the first optical film sheet 10 (FIG. 2) to produce the first bonding of the laminated body 6 of the optical display device.装置 100。 The device 100. This is shown in the enlarged schematic diagram of FIG. 3. The laminated body 6 produced is also sent to downstream processes such as inspection processes.

In the present invention, one side 51 of the rectangular liquid crystal panel 5 in which the terminal portion 50 is formed on one side of the long side shown in FIG. 2. As shown in FIG. 3, the first optical film sheet 10 is bonded to the continuous film plate by an adhesive layer. The first optical film laminate of the continuous film having the first carrier film 2 configured to be continuously supported is sent out from the roller R1, and the first optical film sheet 10 is taken up from the roller R2 by the peeling mechanism 60. The first carrier film 2 of the continuous film plate is peeled off together with the adhesive layer, and is sent to the first attachment position 101. Here, the peeled first optical film sheet 10 is previously bonded to the second optical film so as not to be exposed from the other surface 52 of the liquid crystal panel 5 transported along the special transport path 30 at the first attaching position 101. One surface 51 of the liquid crystal panel 5 constituted by the state of the thin film sheet 20 is such that the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 is not covered, and is formed from the side other than the long side of the liquid crystal panel 5 The fit of his side exposed. The present invention is a method for manufacturing a laminated body 6 of an optical display device.

In addition, the liquid crystal panel 5 configured in a state in which the second optical film sheet 20 is previously adhered so as not to be exposed from the other surface 52 of the liquid crystal panel 5 conveyed along the special conveyance path at the first attaching position 101 is in In the second bonding apparatus 200 shown in FIG. 1, preprocessing is performed based on the following method. This is a state in which the second optical film sheet 20 having a width or length corresponding to the width or length of the other surface 52 of the liquid crystal panel 5 is sent out from the roller R3 and is continuously supported by the adhesive layer on the second carrier film 3. The second optical film layered body of the continuous film plate is wound up to the roller R4 by the second optical film sheet 20 by the peeling mechanism 61, and the second carrier film 3 and the adhesive layer of the continuous film plate They are peeled together and sent to the second attaching position 201. At the second attaching position 201, the other surface 52 of the liquid crystal panel 5 which is specially conveyed along the conveying path 30 is attached in advance so as not to be exposed from the other surface 52. Engineering composition.

An aspect of the present invention is a method for manufacturing a laminated body of an optical display device, as shown in the explanatory diagram of FIG. 4. A side 51 of a rectangular liquid crystal panel 5 in which a terminal portion 50 is formed on one side of a long side is based on by: Among them, a: the distance from one end of the long side of the liquid crystal panel 5 with the short side to the front end to the center line 500 of the liquid crystal panel 5 in the transport direction, or the short side width of the liquid crystal panel 5 when the short side is used as the front end. Length of 1/2 of the length; b: the distance from one end of the long side of the first optical film sheet 10 to the center line 600 of the first optical film sheet 10 in the transport direction when the short side is transported as the leading end, or The short side is a length of 1/2 of the width of the first optical film sheet 10 when the front end is transported; c: the width interval of the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 with respect to the transport direction; d : The amount of deviation from the center line 600 of the first optical film sheet 10 when the first optical film sheet 10 does not cover the attachment position 100 of the terminal portion 50 of the liquid crystal panel 5; and y: the length from the liquid crystal panel 5 The exposure amount of the first optical film sheet 10 exposed from the other side; the first related position information represented by the constructed relational expression, and the first optical film sheet 10 is continuously sent from the roller R1 through the adhesive layer The carrier film 2 of the film is constructed in a state of continuous support The first optical film laminate of the continuous film, and the first optical film sheet 10 is peeled off from the carrier film 2 of the continuous film together with the adhesive layer and transported to the first attaching position 101. The one surface 51 of the liquid crystal panel 5 configured to be bonded to the second optical film sheet so that the other surface 52 of the liquid crystal panel 5 transported to the first attachment position 101 is exposed does not cover the length of the liquid crystal panel. One side side of the terminal part 50 is attached to the other side side of the one side side except for the long side of the liquid crystal panel.

As an embodiment of the present invention, a method for manufacturing a laminated body of an optical display device further includes a side 51 of the liquid crystal panel 5 shown in the explanatory diagram of FIG. 4 based on: Among them, Φ: the second relationship expressed by the relationship between the first optical film sheet 10 and the terminal portion 50 when the first optical film sheet 10 is bonded to the liquid crystal panel 5 so that the terminal portion 50 is not covered; Position information 56: The first optical film laminate of the continuous film, which is a state in which the first optical film sheet 10 sent from the roller R1 and the carrier film 2 of the continuous film is continuously supported by the adhesive layer, the first The optical film sheet 10 is peeled off from the carrier film 2 of the continuous film together with the adhesive layer, and is transported to the first attachment position 101. The other side of the liquid crystal panel 5 is not transported from the carrier film 2 to the first attachment position 101. One surface 51 of the liquid crystal panel 5 configured in a state of being bonded to the second optical film sheet in a manner of 52 is exposed so as not to cover the terminal portion 50 formed on one side of the long side of the liquid crystal panel. One side of the long side of the panel is bonded so that the other side is exposed.

As an embodiment of the present invention, the second optical film sheet 20 having a width or length corresponding to the width or length of the other surface 52 of the liquid crystal panel 5 can be further sent from the roller R3 on the second carrier film 3 by The second optical film laminate of the continuous film plate having the adhesive layer in a state of being continuously supported, thereby bringing the second optical film sheet 20 from the second carrier film 3 of the continuous film plate together with the adhesive layer. The other surface 52 of the liquid crystal panel 5 that has been specially conveyed along the conveying path 30 along the conveying path 30 is detached and sent to the second attaching position 201 in advance so as not to be exposed from the other surface 52.

[Embodiment]

As another aspect of the present invention, although the process is partially repeated, the processes (a) to (g) of FIG. 5 and the operations corresponding to the flowcharts (i) to (viii) of FIG. 6 are shown. For example, it may include: (i) a position adjustment process (A) that adjusts the center line 500 of the liquid crystal panel 5 including processes (a) to (e) to the center line 600 of the transport path 30 of the liquid crystal panel 5; The position detection process B and of the first optical film sheet 10 including the processes (f) and (g) are performed to perform the centerline 500 of the liquid crystal panel 5 and the first optical film laminate supported by the roller R1. After the position adjustment between the center lines 700 of the first optical film sheet 10 of the first carrier film 2 is performed, the first bonding process C of the first optical film sheet 10 is bonded to one surface 51 of the liquid crystal panel 5.

The position adjustment process A including the processes (a) to (e) is intended to be carried in a state where the liquid crystal panel 5 is shifted from the center line 600 of the transport path 30 at the first attachment position 101. Processes (b) and (c) correspond to the operations in flowchart (i), and temporarily stop the liquid crystal panel 5 that has been transported in a deviated state. For example, the position adjustment mechanism 70 shown in FIG. The periphery is pressed and adjusted so that the center line 500 of the liquid crystal panel 5 is corrected to be located at a temporary reference position α that coincides with the center line 600 of the transport path 30.

The process (d) corresponds to the action of (ii) as well. Here, the action of the position adjustment mechanism 70 is cancelled, and the liquid crystal panel 5 after the position adjustment is, for example, fixed by the positioning mechanism 80 shown in FIG. 3. In FIG. 5, the temporary reference position α is a correction position where the center line 500 of the liquid crystal panel 5 coincides with the center line 600 of the transport path 30.

The process (e) corresponds to the action of (iii). The panel detection mechanism 150 shown in FIG. 3 reads the reference point 53 such as the alignment mark of the liquid crystal panel 5 and sets it to the first point set in the panel detection mechanism 150 in advance. 1 The reference information 54 is compared, and the liquid crystal panel 5 temporarily adjusted to the reference position α is adjusted to the reference position β. The process (e) also corresponds to the action of (iv), and the reference position β is associated with the readjusted liquid crystal panel 5, and the alignment is shown in FIG. 4 at the first attachment position 101 shown in FIG. 3. In this method, for example, the position of the first optical film sheet 10 is detected by the sheet detection mechanism 90.

The position detection process B composed of the related process (e), and again, corresponds to the actions of (v) and (vi), that is, the actions of the control device 550, as shown in the explanatory diagram of FIG. 7 The action of (v) is to calculate the amount of deviation δ between the position of the first optical film sheet 10 detected by the sheet detection mechanism 90 and the position of the liquid crystal panel 5 after readjusting to the reference position β, (vi 8), as shown in the explanatory diagram of FIG. 8, the deviation amount δ is added so as not to cover the terminal portion 50 on one side of the long side of the liquid crystal panel 5, and from the side excluding the long side of the liquid crystal panel 5. The adjustment amount y1 of the first optical film sheet 10 adjusted so that the other side is exposed is used to calculate the first related position information 55.

The positions of processes (a) to (e) of FIG. 5 in which the present invention is implemented, specifically, the temporary reference positions α of processes (b) and (c) and the reference positions β of processes (d) and (e), such as As shown in FIG. 3, the position corresponding to the left end of the panel detection mechanism 150 is provided. For the liquid crystal panel 5 which is transported from the upstream side to the process (a) from the center line 600 of the transport path 30 only by the deviation amount δ, as the first operation shown in the flowchart (i), The adjustment mechanism 70 corrects the deviation amount δ and performs position adjustment to be the temporary reference position α.

The liquid crystal panel 5 adjusted to the temporary reference position α is positioned at the reference position β as in the following manner. At the positions of processes (d) and (e), as the operation of (ii), the liquid crystal panel 5 is fixed by the positioning mechanism 80 by suction. In the same manner as in (iii), the liquid crystal panel 5 in an adsorption-fixed state corresponding to the first reference information 54 set in advance in the panel detection mechanism 150 is finely adjusted to the reference position β. In the same manner as in (iv), the first optical film sheet 10 is detected by the sheet detection mechanism 90. In the same manner as (v) and (vi), the liquid crystal panel 5 that adjusts the position of the detected first optical film sheet 10 to the reference position β is shown in FIG. 4. The device 550 calculates the information as the first related position information 55.

The bonding process C including the processes (f) and (g) that are related to it, the actions corresponding to the flowcharts (vii) and (viii), and the action corresponding to (vii) of the process (f) is appropriately selected Location implementation. For example, it may be performed at the reference position β. This can also be performed at the first attachment position 101. Alternatively, it may be performed at the attachment adjustment position γ located between the two positions. Process (f) is here intended to be carried out at the attachment adjustment position γ. In this case, the process (f) carries the liquid crystal panel 5 readjusted to the reference position β as the operation initially shown in the flowchart (vii) to the attachment adjustment position γ. Next, the liquid crystal panel 5 adjusts the centerline 500 of the liquid crystal panel 5 from the centerline 700 of the first optical film sheet 10 to the center of the first optical film sheet 10 based on the first related position information 55 calculated by the control device 550 at the attachment adjustment position γ The wire 700 performs the sticking adjustment on the first optical film sheet 10 only in a manner that the adjustment amount y1 moves in parallel. Then, the adjusted liquid crystal panel 5 is transported to the first attaching position 101 in this manner.

In the final process (g), as the operation of (viii), at the first attachment position 101, as shown in FIG. 3, the first optical film peeled from the first carrier film 2 to the liquid crystal panel 5 adjusted and attached as shown in FIG. The sheet 10 is bonded so as not to cover the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 and is exposed from the other side than the one side of the long side of the liquid crystal panel 5.

Process (f) is the operation shown in the flowchart (vii), and the liquid crystal panel 5 is attached to the first optical film sheet 10 based on the first related position information 55. Whether the operation can be performed here is like As mentioned above, it may be performed in advance at the reference position β or may be performed at the first attachment position 101. Therefore, as a matter of course, in the method of manufacturing the laminated body 6 of the optical display device constituted by the processes (a) to (g), the liquid crystal panel 5 can also be adjusted to the reference position β or the first position β without adjusting the position γ through the attachment. The adjustment of the liquid crystal panel 5 caused by the 1 attachment position 101 and the first related position information 55 is attached at the same time.

In addition, the relative relationship between the liquid crystal panel 5 and the second optical film sheet 10 satisfies: Represented relationship. These are the first related position information 55 calculated by the control device 550. Each of a, b, c, d, and y at this time is defined as follows. a: The distance from one end of the long side of the liquid crystal panel 5 to the front end to the center line 500 of the liquid crystal panel 5 in the conveying direction, or one width of the short side of the liquid crystal panel 5 when the short side is to be conveyed. Length of / 2; b: the distance from one end of the long side of the first optical film sheet 10 to the center line 600 of the first optical film sheet 10 in the transport direction when the short side is transported as the leading end, or the short side The length of 1/2 of the width of the first optical film sheet 10 when the front end is transported; c: the width interval of the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 with respect to the transport direction; d: the The amount of deviation from the center line 600 of the first optical film sheet 10 when the first optical film sheet 10 does not cover the attachment position 100 of the terminal portion 50 of the liquid crystal panel 5; and y: from the long side of the liquid crystal panel 5 The exposure amount of the first optical film sheet 10 exposed on the other side.

Furthermore, in the second related position information 56 calculated by the control device 550, as shown in the explanatory diagram of FIG. 4, the relationship between the one surface 51 of the liquid crystal panel 5 and the first optical film sheet 10 is: To express the relationship. This gap Φ is used for bonding the first optical film sheet 10 to the liquid crystal panel 5 with a small space when the first optical film sheet 10 is not covered by the terminal portion 50. However, if the width c of the terminal portion 50 is too small with respect to (a + db), the gap Φ becomes too large to be implemented as a product, so it is preferably c ≦ 3.5 mm.

Therefore, when the width 2b of the first optical film sheet 10 is the same as the width 2a of the liquid crystal panel 5, the width of the terminal portion 50 becomes equal to the amount of deviation of the liquid crystal panel 5 from the center line 600 of the first optical film sheet 10. d. In addition, as shown in FIG. 4, when the width 2 b of the first optical film sheet 10 is larger than the width 2 a of the liquid crystal panel 5, as shown in FIG. 8, the state of the exposure amount y0 is also displayed when it is not adjusted. In a state where the adjustment amount y1 adjusted so as not to cover the terminal portion 50 is added, the total exposure amount y of the first optical film sheet is determined. Conversely, although the width 2b of the first optical film sheet 10 can be made narrower than the width 2a of the liquid crystal panel 5, the limit becomes the deviation amount d, that is, the adjustment amount y1 becomes d (y1) = 0, which makes it impossible. A laminated body of an optical display device is attached to one surface 51 of the liquid crystal panel 5 so as to be exposed from the other side than the long side. In this case, it is a condition that the deviation amount d is d> 0.

It is apparent from the schematic diagram of FIG. 2 that the liquid crystal panel 5 used in the present invention constitutes the first optical film sheet 10 and the first optical film sheet 10 and the first optical film sheet 10 and the first optical film sheet 10 and the second surface 52 which are the non-visual side of the liquid crystal panel 5. 2 The polarizing film of the optical film sheet 20 is bonded so that the absorption axis becomes a relationship of orthogonal polarization through an optical compensation film and the like.

One side of the liquid crystal panel 5 configured by the laminated body 6 of the optical display device manufactured by the present invention in a state in which the second optical film sheet 20 is not exposed from the other surface 52 of the TFT side of the liquid crystal panel 5 in advance. 51, that is, on the CF side, the first optical film sheet 10 is provided so as not to cover the terminal portion 50 provided on the one side 521 of the protruding portion 520 on the TFT side, and from the side excluding the long side of the liquid crystal panel 5 It is preferable that the other side of the other side be bonded so that only the width y of the terminal portion 50 is exposed. Therefore, the area of the first optical film sheet 10 bonded to the one surface 51 of the liquid crystal panel from the other side than the one side is usually a transmission area.

In the case of the laminated body 6 of the optical display device manufactured in this way, the first optical film sheet 10 is bonded so as not to cover the terminal portion 50 formed on the liquid crystal panel 5, and is bonded to the optical film sheet to cover the liquid crystal panel 5. Compared with the previous type laminated body in which the terminal portion 50 is bonded, it is not necessary to cut and remove the remaining portion of the first optical film sheet covering the terminal portion 50, and there is no need to worry about damaging the terminal portion 50.

In this aspect, the present invention provides a method for manufacturing a laminated body 6 of an optical display device. In one embodiment, as shown in the second bonding device 200 of FIG. 1, in the pre-treatment process on the upstream side of the device 1 for carrying out the method, it has a width or length corresponding to the other surface 52 of the liquid crystal panel 5. The second optical film sheet 20 having a width or length is sent out from the roller R3 of the second optical film layered body of the continuous film plate in a state of being continuously supported by the second carrier film 3 by the adhesive layer. At this time, the second optical film sheet 20 is peeled off from the second carrier film 3 of the continuous film plate together with the adhesive layer, and is sent to the second attachment position 201. Here, the liquid crystal panel 5 sucked and fixed by the second alignment mechanism 81 is transported to the second attaching position 201, and the second optical film sheet 20 is not exposed from the other surface 52 on the other surface 52 of the liquid crystal panel 5. The way fits in advance.

In one embodiment, the liquid crystal panel 5 of the second optical film sheet 20 is previously attached to the other side 52 of the liquid crystal panel 5 as shown in FIG. 1. The second alignment mechanism 81 is in a state of being fixed by adsorption. , It is transported to the second attachment position 201, where the suction and fixing of the second alignment mechanism 81 is released. Thereafter, the liquid crystal panel 5 is transported to the reverse rotation unit 300 on the transport path 30 using the long side as the front end surface. Next, in the reverse rotation process of the liquid crystal panel 5, a 90 ° rotation is performed by a rotation mechanism (not shown) to turn the short side of the liquid crystal panel 5 by a rotation mechanism (not shown). As a front end surface, it is conveyed to the 1st bonding apparatus 100 along the conveyance path 30. The laminated body 6 manufactured by the process which implements this method is conveyed to downstream processes, such as an inspection process.

In the first bonding apparatus 100 in one embodiment, in the pre-processing process, the second optical film sheet 20 has a width larger than that of one side 51 of the liquid crystal panel 5 which is bonded to the other side 52 of the liquid crystal panel. The roller R1 of the first optical film laminate of the continuous film having a large width is sent out. The first optical film laminate is configured in a state where the first optical film sheet 10 is continuously supported on the first carrier film 2 of the continuous film plate by an adhesive layer. At this time, the first optical film sheet 10 from which the first carrier film 2 of the continuous film plate wound up by the roller R2 is peeled together with the adhesive layer by the peeling mechanism 60 is sent to the first attaching position 101. Here, the first optical film sheet 10 is not covered on one side of the long side of the liquid crystal panel 5 on the side 51 of the liquid crystal panel 5 that is transported to the first attaching position 101 as shown in FIGS. 2 and 4. The terminal portions 50 formed on the sides are bonded to each other so as to be exposed from other sides than the long side of the liquid crystal panel 5. Thereby, since the first optical film sheet 10 and the second optical film sheet 20 bonded to both sides of the liquid crystal panel are formed together as a polarizing film, the absorption axes are orthogonally polarized. In the present invention, the first optical film laminate may have the same width as one side of the liquid crystal panel, or may be smaller. The width of the first optical film laminate may be the same as the width of one side 51 of the liquid crystal panel 5. At this time, the adjustment amount y1 shown in FIG. 9 is the same as the exposure amount y, the width of the first optical film laminate is smaller than the width of the one surface 51 of the liquid crystal panel 5, and the adjustment amount y1 is larger than the exposure amount y.

R1‧‧‧The first roller for sending out the optical film laminate

R2‧‧‧ take-up roller for 1st carrier film

R3‧‧‧ 2nd optical film laminate roll-out roller

R4‧‧‧ take-up roller for 2nd carrier film

10‧‧‧The first optical film sheet

2‧‧‧ 1st carrier film

20‧‧‧The second optical film sheet

3‧‧‧ 2nd carrier film

5‧‧‧ LCD panel

6‧‧‧Laminated body of optical display device

50‧‧‧Terminal part of LCD panel

51‧‧‧One side of the LCD panel (CF side)

52‧‧‧ The other side of the LCD panel (TFT side)

53‧‧‧ fiducial points such as alignment marks of the LCD panel 5

54‧‧‧ Pre-set reference information in the panel detection mechanism

55‧‧‧1st related location information

56‧‧‧ 2nd related location information

δ‧‧‧ The amount of deviation (deviation angle) between the liquid crystal panel and the center line of the first optical film sheet included in the reference information

y‧‧‧ the first optical film sheet adjusted so as not to cover the terminal portion formed on one side of the long side of the liquid crystal panel and exposed from the other side than the one side of the long side of the liquid crystal panel The adjustment amount y1 of the material 10 is the exposure amount obtained by adding the protrusion amount y0 of the first optical film sheet exposed from the liquid crystal panel even without adjustment.

1‧‧‧RTP device

30‧‧‧ transport road

100‧‧‧ The first laminating device constituting an RTP device

α‧‧‧ temporary reference position

β‧‧‧ reference position

γ‧‧‧ Post adjustment position

101‧‧‧ 1st attaching position

60‧‧‧The first optical film sheet peeling mechanism

70‧‧‧ Position adjustment mechanism of LCD panel

Positioning mechanism of 80‧‧‧ LCD panel

90‧‧‧ sheet detection agency

150‧‧‧ panel detection agency

200‧‧‧ The second bonding device constituting the RTP device

201‧‧‧ 2nd attaching position

[Fig. 1] A second bonding device including a pretreatment process for manufacturing a lamination process including lamination of a second optical film sheet included on the other side of a liquid crystal panel of the present invention, and One side of the liquid crystal panel constructed by bonding the state of the second optical film sheet 20 to the other side of the liquid crystal panel so that the first optical film sheet does not cover the terminal portion of the liquid crystal panel, and A schematic diagram of the entire apparatus of the method for laminating an optical display device of the present invention, which is formed by the first bonding device of the present invention, which is bonded to one side of the long side of the panel so that the other side is exposed. [FIG. 2] A schematic diagram showing the structure of a liquid crystal panel constituting a laminate of an optical display device of the present invention. [Fig. 3] An enlarged schematic view of the first bonding device of Fig. 1. [FIG. 4] An explanatory diagram showing a relationship between a center line of a liquid crystal panel and a center line of a first optical film sheet in a method for manufacturing a laminated body of an optical display device of the present invention. [FIG. 5] A schematic diagram showing an engineering diagram of an embodiment of a method for realizing a laminated body of an optical display device of the present invention. [Fig. 6] A flowchart showing the engineering drawing of Fig. 5. 7 shows one side of the liquid crystal panel, the deviation amount δ from the first optical film sheet when facing the one side, and other sides from the long side of the liquid crystal panel except the first optical film sheet An illustration of the amount y exposed from the side. [Fig. 8] A mode in which the first optical film sheet facing the liquid crystal panel does not cover the terminal portion of the liquid crystal panel and is exposed from a side other than the long side of the liquid crystal panel An explanatory diagram of the bonding state.

Claims (6)

A method for manufacturing a laminated body of an optical display device with respect to one side of a rectangular liquid crystal panel in which terminal portions are formed on one side of a long side is based on: Among them, a: the distance from the one end of the long side of the liquid crystal panel conveyed by the front end to the center line of the liquid crystal panel in the conveying direction, or one half of the width of the short side of the liquid crystal panel when the short side is conveyed by the front end. Length: b: the distance from one end of the long side of the first optical film sheet when the short side is transported to the front end to the center line of the first optical film sheet in the transport direction, or the first time when the short side is transported as the front end Length of 1/2 of the width of the optical film sheet; c: width interval of the terminal portion formed on one side of the long side of the liquid crystal panel with respect to the conveyance direction; d: the first optical film sheet does not cover the liquid crystal panel The amount of deviation of the first optical film sheet from the center line of the first optical film sheet when the terminal portion is attached; and y: the exposed amount of the first optical film sheet exposed from the other side of the long side of the liquid crystal panel; The first related position information represented by the relational expression, and the first optical film laminate of the continuous film plate composed of the first optical film sheet with the adhesive layer on the carrier film of the continuous film plate continuously supported is sent out. body The first optical film sheet is peeled from the carrier film of the continuous film plate together with the adhesive layer and transported to a first attaching position. The first optical film sheet is not transported to the first liquid crystal panel from the first attaching position. One side of the liquid crystal panel configured with the second optical film sheet bonded so that the other side is exposed, does not cover the terminal portion formed on one side of the long side of the liquid crystal panel, and One side of the long side of the liquid crystal panel is bonded so that the other side is exposed. The method described in claim 1, wherein, compared to the side of the liquid crystal panel, the method is more based on: Among them, Φ: the second relationship expressed by the relationship between the first optical film sheet and the terminal portion when the first optical film sheet is attached to the liquid crystal panel so that the terminal portion does not cover the terminal portion; The position information, the first optical film laminate of the continuous film plate formed by the first optical film sheet with the adhesive layer continuously supported on the carrier film of the continuous film plate, and the first optical film sheet The material is peeled off from the carrier film of the continuous film plate together with the adhesive layer and transported to the first attaching position, so as not to be exposed from the other surface of the liquid crystal panel that is transported to the first attaching position. One side of the liquid crystal panel formed in a state of being bonded to the second optical film sheet is such that the terminal portion formed on one side of the long side of the liquid crystal panel is not covered, and the long side of the liquid crystal panel is excluded. 1 side of the side fits with the other side exposed. The method according to claim 1 or 2, wherein the second optical film sheet having a width or length corresponding to the width or length of the other surface of the liquid crystal panel is sent out to the carrier film of the continuous film plate with an adhesive layer. The second optical film laminate of a continuous film configured in a state of being continuously supported, the second optical film sheet is peeled from the carrier film of the continuous film and the adhesive layer together and transported to a second patch. The attachment position is attached in advance so as not to be exposed from the other surface of the liquid crystal panel transported to the second attachment position. The method according to any one of claims 1 to 3, wherein the first optical film sheet bonded to one side of the liquid crystal panel and the second optical film sheet bonded to the other side are polarized films together It is formed so that it may adhere | attach on both surfaces of the said liquid crystal panel so that absorption axis may become orthogonal polarization relationship. The method according to any one of claims 1 to 4, wherein one surface of the liquid crystal panel is a CF side surface that becomes a visual side, and the other surface of the liquid crystal panel is a surface that becomes a non-visual side TFT side. The method according to any one of claims 1 to 5, wherein the liquid crystal panel is composed of a member on one side and a member on the other side, and the member on the other side is included in one side of the long side and the one side. A protruding portion corresponding to the corresponding long side of the member is formed with a terminal portion on the one surface side of the protruding portion.