TW200409723A - Polarizer bonding device(I) - Google Patents

Abstract

A polarizer bonding device. The polarizer bonding device will not reduce the yield and avoid enlarging footprint of polarizer bonding device. A turning station 200 turning the liquid crystal cell substrate 1 for 90o is disposed between the entry at the upstream of the carrying line 10 and the cleaning carrying line 100. The turning station 200 comprises a turning plate 202 for carrying the liquid crystal cell substrate 1 along the short side of the liquid crystal cell substrate 1 in the carrying line 10 of the polarizer bonding device 1000.

Description

200409723

[Technology to which the invention belongs] The present invention relates to a large substrate, which can also suppress the [prior art] field. A kind of polarizing plate attachment device. Polarizing plate with enlarged body. Fig. 5 shows a schematic cross-sectional structure of a color liquid crystal display. This color liquid crystal display has a broken glass substrate m ^ 洛 / 间, which holds the sun, the alignment film, the transparent electrode, the color filter, and the like in the chamber. The liquid crystal cell substrate 1 constituted, and the polarizing plates 2 and 3 arranged on the surface and the inner surface (cf side, TFT surface side) of the liquid crystal cell substrate i. In the manufacturing process of the color liquid crystal display thus constituted , Must pass through TFT array process 1 color filter process, wafer assembly process, module assembly process and other processes, including the liquid crystal wafer substrate 丨 polarizing plate sticking process. The polarizing plate sticking process is based on the liquid crystal wafer A process performed after the assembly process. As shown in FIG. 3, a polarizing plate is disposed below the liquid crystal substrate 1 having a short side and a long side in order to adhere to one side of the polarizing plate 2 The layer is exposed, and the release film 2a is pulled away from the polarizing plate 2. After that, as shown in FIG. 4, the polarizing plate 2 that is fixedly fixed to the assembly stage 2A is fixed to the side of the liquid crystal wafer substrate 1 that is fixedly fixed to the panel suction stage 50. Tilt, roll the polarizing plate 2 by rolling 5 is in close contact with one face (CF face) of the liquid crystal wafer substrate 1. After that, the liquid crystal wafer substrate is turned into ^! Then, the other side (τρτ face) of the liquid crystal wafer substrate 1 is similarly stuck to the polarizing plate 3. Here ' Referring to Fig. 5, a schematic structure of a conventional polarizing plate sticking device 2000 will be described. This polarizing plate sticking structure 200

200409723 V. Description of the invention (2) A conveying line 10 for carrying the element substrate 1 in a predetermined direction. The conveying line has a first polarizing plate bonding line (CF-side polarizing plate bonding line) 3 0 0 and a second polarizing plate bonding line (TFT-side polarizing plate bonding line) 4 0 0. Between the first polarizing plate adhesion line 3 0 0 and the second polarizing plate adhesion line 4 0 0, a reversing stage 7 0 0 for inverting the surface and inner surface of the substrate is provided, and the second polarizing plate adhesion line 4 is similarly provided. A reverse stage 800 is provided on the downstream side of the OO liquid crystal wafer substrate 1 in the carrying direction. Further, a washing and conveying line 100 in the washing process is connected to the upstream side of the conveying line. On the first polarizing plate sticking line 3 0 0, from the upstream side, there are cleaning rollers 3 0, an alignment table 3 0 2, an alignment CD camera 3 0 3, and a polarizing plate sticking table 3 1 0. Similarly, on the second polarizing plate sticking line 400, from the upstream side, a cleaning roller 4 0, an alignment table 4 0, a CCD camera 40 for alignment 3, and a polarizing plate sticking table 410 are provided. . Further, in the transfer line 10, a first polarizing plate supply line 500 is provided so as to be orthogonal to the polarizing plate bonding stand 3 10 of the first polarizing plate bonding line 300. The first polarizing plate is supplied with a line 5 0 0. The first polarizing plate supply line 5000 has a plurality of stacked polarizing board E boards (cartridge board) 501 for polarizing plates 2 to be adhered to the CF side of the liquid crystal wafer substrate 1, and from the polarizing plate cassette board 5 〇1 The polarizing plate taking-out stage 5 〇3, the polarizing plate cleaner 504, and the polarizing plate alignment stage 505 from which the polarizing plate 2 was taken out. Similarly, a second polarizing plate supply line 600, which is orthogonal to the polarizing plate bonding stage 41 o of the second polarizing plate bonding line 400, is provided on the conveying line 10. The second polarizing plate supply line 60 0 is the same as the first polarizing plate supply line 500, and a plurality of stacked polarizing plate cassette plates 601 are used for the polarizing plate 3 to be adhered to the TFT side of the liquid crystal substrate 1. From the polarizing plate cassette plate 60, the polarizing plate

2075-5923.PF (Nl) .ptd 200409723 V. Description of the invention (3) 3 The polarizing plate removal stage β03, which is taken out, is also a polarizing plate cleaner 604 and a polarizing plate alignment stage 605. In the “structure” polarizing plate bonding device 2000, the polarizing plates 2 and 3 are adhered to the liquid crystal wafer substrates conveyed along the long side of the liquid crystal wafer ^ plate 1 starting from the washing and conveying line. Under such circumstances, it is transported in the first polarizing plate bonding line 3 0, and according to the above-mentioned methods of FIGS. 3 and 4, the polarizing plate 2 is adhered to the CF of the liquid crystal wafer substrate 1 in the polarizing plate bonding stage 31. Next, the surface and inner surface of the liquid crystal cell substrate 1 are reversed in the inversion stage 70 0, and then transported in the second polarizing plate adhesion line 400, according to the above-mentioned points in FIGS. 3 and 4 ' In the polarizing plate sticking stage 4 1 0, the polarizing plate 3 is stuck on the TFT side of the liquid crystal wafer substrate 1. After that, the surface and inner surface of the liquid crystal wafer substrate 1 are reversed again in the reversing stage 80 05. Shipped to the next process (automatic inspection process, module assembly process). Moreover, the conventional technology of the invention related to the above case is explained based on the general technical information known to the applicant, and it is within the scope of the applicant's memory Within this application, the applicant did not have all the know-how In addition, it does not recognize its own patent application than the previous applicant of the present case. Problems to be Solved by the Invention In recent years, the color liquid crystal display has grown in size. It is known that the size of the color liquid crystal display is 15 inches. In the future, 30-inch and 45-inch LCDs have become mainstream, and color LCD monitors will be rapidly enlarged in the future. In this way, in the case of large-sized color LCD monitors, as shown in Figure 5

2075-5923-PF (Nl) .ptd Page 7 200409723 V. Description of the invention (4) The polarizing plate sticking device shown in Figure 4 is also a necessary machine, especially when the length k in the direction of transportation is large. However, due to the limitation of the factory site, the size of the color LCD monitor cannot be increased infinitely. w In the process in which the polarizing plates 2 and 3 are adhered to the liquid crystal wafer substrate, the production interval (tack time) becomes longer. However, even if the color liquid crystal display is enlarged, it is still necessary to suppress an increase in the manufacturing cost of the color liquid crystal display, and it is necessary to make the manufacturing process of the color liquid crystal display efficient. Here, in the case of the polarizing plate sticking device shown in Fig. 5, ^ 2 is arranged on the liquid crystal wafer substrate! Then, the sacred film 2a from the polarizing plate 2 is pulled away from the polarizing plate 2 and the polarizing plate 2 is closely adhered to the side of the liquid crystal wafer substrate. Cheng Zhi; ί: A method for improving the efficiency (suppressing the increase in production interval) of sticking i to the plates 2 and 3 on the liquid crystal wafer substrate 1, because the time for the release film 23 to pull away from the polarizing plate 2 is effectively used, In advance: In the sticking line, the release film 2a is pulled away from the polarizing plate: The process liquid of the polarizing plate 2 is said; A lamp carving i film Za is pulled in parallel. . The sealing process of the polarizing plate 2 of the liquid crystal substrate 1 is the same, but the state of this relay method is that the time is exposed, and the layer of dust attached to the adhesive layer is long on the liquid crystal wafer substrate! The problem on the side is indeed = "". Also, the film 2a has been pulled away from the polarizing plate 2, and in the case of C, the release is high and it becomes a waste treatment. Therefore, the accuracy of the adhesive layer improves the production interval and reduces the field of the product. ' Attempts can be made to increase the manufacturing cost of a color liquid crystal display. The rate, in terms of a, leads to page 2075-5923-PF (Nl) .ptd 200409723

[Summary of the Invention] The light board sticking device is able to suppress the sticking of the polarizing plate to solve the above-mentioned sticking device. However, the present invention provides a bias problem that reduces the pass rate of products and enlarges the machine. Means for solving the problem In order to solve the above-mentioned problem, in the polarizing plate adhering device of the present invention, a liquid crystal substrate having a rectangular shape with short sides and long sides is placed on the surface of the liquid crystal substrate on the surface of the liquid crystal substrate. The polarizing plate is transported in a predetermined direction and adhered to the above-mentioned liquid crystal wafer substrate. The polarizing plate adhering device includes: a conveying line for conveying the liquid crystal wafer substrate in a predetermined direction; and a sticking σ, which is recognized on the conveying line A polarizing plate is adhered to the surface of the liquid crystal cell substrate; a polarizing plate conveying line is used for carrying the polarizing plate on the surface of the liquid crystal substrate. In addition, the conveying line has a rotary table. In order to carry the liquid crystal crystal substrate in a direction in which the short side extends, the liquid crystal wafer substrate conveyed along the long side is formed from the upstream side of the sticking table. 0 degree rotation. The turntable is provided at an entrance portion of the transfer line. ^ In such a structure, the liquid crystal wafer substrate is transported along the short side extension direction on the polarizing plate sticking device. As a result, the length of the transfer line can be shortened as compared with the case where it is conventionally transported along its long side extending direction. As a result, the length of the polarizing plate sticking device having a length along the conveying direction is not increased, and even in a sticking device that sticks a polarizing plate to a large-scale liquid crystal wafer substrate, it is possible to suppress an increase in the number of units. Also, the adhesion time of the polarizing plate to the liquid crystal wafer substrate, due to the

2075-5923-PF (Nl) .ptd

200409723 V. Description of the invention (6) The length of the side of the liquid crystal substrate in the carrying direction can shorten the sticking time of the polarizing plate, reduce the mixing of dust, and improve the pass rate. The polarizing plate conveying line includes parallel lines extending slightly parallel to the conveying line, and orthogonal lines slightly orthogonal to the conveying line in order to directly supply the polarizing plate to the sticking table. In this way, by providing a parallel line that is slightly parallel to the conveying line on the polarizing plate conveying line, it is possible to suppress the expansion of the polarizing plate sticking device machine. In particular, in this polarizing plate sticking device, the liquid crystal wafer substrate is carried along the short side extension direction, and the polarizing plate is carried along the long side extension direction. Here, on the polarizing plate conveying line as described above, by providing a parallel line extending slightly parallel to the conveying line, it is possible to suppress the expansion of the polarizing plate sticking device machine. [Embodiment] Hereinafter, an embodiment of a polarizing plate adhesion structure according to the present invention will be described with reference to Fig. 1. In addition, Fig. 1 is an overall plan view showing a schematic structure of a polarizing plate sticking device 100 according to the present invention. In addition, the same reference numerals are given to the same or equivalent parts of the conventional polarizing plate sticking device, and redundant description will not be given. A feature of the structure of the polarizing plate adhesion device 1000 is that a liquid crystal cell substrate 1 that can be processed in the previous process is provided between the entrance portion on the upstream side of the transfer line 10 and the cleaning transfer line 100. The rotation direction of the rotary table is 90 ° with a 90 ° rotation. The turntable 200 is specifically configured as a turntable 202 that rotates the liquid crystal wafer substrate 1 by 90 degrees. From the washing and conveying line 100, although the liquid crystal wafer substrate 1 is conveyed along the extending direction of its long side, the polarizing plate is rotated by 90 degrees by the rotary table 200.

2075-5923-PF (Nl) .ptd Page 10 200409723 V. Description of the invention quot " '--Adhesive device 1 00 〇 transport line 丨 〇, the liquid crystal wafer substrate 1 is along the liquid crystal wafer substrate 1 Carry in the short side extension direction. With this structure, the length of the conveying line can be shortened as compared with the case of the conventional polarizing plate sticking device which is conveyed in the direction in which the long side is extended. In addition, the time when the polarizing plates 2 and 3 are adhered to the liquid crystal substrate 丨, because the side length of the liquid crystal substrate ^ in the carrying direction can be shortened, the polarizing plate can be adhered to a shorter time and the dust passing rate can be increased. Furthermore, further structural features include the arrangement of the first polarizing plate conveying line 500 and the second polarizing plate conveying line 600. For the first polarizing plate moving, line 50 0 is described, which is characterized by having a first parallel line 5 0A 'extending slightly parallel to the conveying line 10 and directly supplying the polarizing plate 2 to the sticking table 31 0, relative to the conveying line. 10 is slightly orthogonal to the first orthogonal line 5000. It is also the same for the second polarizing plate conveying line 600, which is characterized by having a second parallel line 600A extending slightly parallel to the conveying line 10 and directly supplying the polarizing plate 3 to the sticking table 41 °. Line 10 is slightly orthogonal to a second orthogonal line 60 gawa. y In this polarizing and sticking device 100, the liquid crystal wafer substrate 1 as described above is carried along the short side extension direction. The polarizing plates 2 and 3 are supplied from a direction that is slightly orthogonal to the conveying line 10. As shown in the figure, the polarizing plates 2 and 3 extend along the long sides of the polarizing plates 2 and 3 with respect to the conveying line 10. Moving. Here, as described above, on the first polarizing plate conveying line 500 and the second polarizing plate conveying line 600, the first bottle line 50a and the first The two parallel lines 600A, because of the arrangement of the polarizing plate transfer line of the polarizing plate sticking device 丨 00, can suppress the expansion of the machine. Moreover, as a best mode for understanding the present invention, it is disclosed

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V. Description of the invention (8) The board mounting device 100 ° 'The disclosure of this embodiment mode is completely for implementation: she is placed on the CU surface side and the TFT surface side of the liquid crystal crystal 70 substrate 1 respectively; The polarizer is attached to the station to reveal the device structure where the first polarizer adhesive line 3 00 and the second 0 are continuously arranged. In the case where continuous adhesive I :? is not used, a separate polarizer can also be adhered. The technical scope of i f: is not limited to the description based on the profit scope described in the above embodiment. In addition, all changes within the meaning and scope including the effects of Ming Ming and Xiao Xiao are included. Liquid crystal: Panel mounting device. • In order to stick the polarizing plate to the large-scale substrates, the polarizing plates can be attached to each other, but the size of the machine can be suppressed. Lift up. ~, Short and short between temples' to reduce dust incorporation and pass rate

200409723 Brief Description of Drawings Fig. 1 is a schematic structural diagram of a polarizing plate sticking device in this embodiment. Figure 2 is a schematic diagram of the structure of a color LCD display. Figure 3 is a cross-section engineering drawing showing the process of sticking a polarizer to a liquid crystal substrate. FIG. 4 is a second cross-sectional process drawing showing a process of attaching a polarizing plate to a liquid crystal wafer substrate. Fig. 5 is an overall plan view showing a schematic structure of a polarizing light sticking device in a conventional technique. DESCRIPTION OF SYMBOLS 1 ~ liquid crystal wafer substrate, 2, 3 ~ polarizing plate; 2a ~ release film; 5 ~ carrying roller; 10 ~ carrying line; 100 ~ washing line; 200 ~ rotary table; 2 0 2 ~ turntable; 3 0 0 ~ 1st polarizing plate sticking line (CF side polarizing plate sticking line); 3 0 1, 4 0 1 ~ cleaning rollers; 302, 402 ~ alignment table; 30 3, 40 3 ~ CCD camera; 3 1 0, 4 1 0 ~ polarizing plate sticking stage; 4 0 0 ~ second polarizing plate sticking line (TFT side polarizing plate sticking line);

2075-5923-PF (Nl) .ptd Page 13 200409723 Brief description of the diagram 5 0 0 ~--Polarizing plate supply line, 50 1 60 1 ~ Polarizing plate cassette; 5 0 3 > 603 ~ Polarizing plate Introduced; 5 0 4, 604 ~ polarizer cleaner; 5 0 5 ^ 605 ~ polarizer alignment table; 5 0 0A ~ first parallel line 5 0 0B ~ first orthogonal line 6 0 0A ~ second parallel line 6 0 0B to the second orthogonal line; 70 0, 800 to the inversion stage.

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Claims (1)

200409723 VI. Application Patent Scope 1 · A polarizing plate sticking device, which carries the liquid crystal cell substrate (1) on the surface of the rectangular liquid crystal cell substrate (1) with short sides and long sides in a predetermined direction The polarizing plate (2, 3) is adhered to the liquid crystal cell substrate (1). The polarizing plate adhering device includes: a conveying line (10), carrying the liquid crystal cell substrate (1) in a predetermined direction. A sticking table (3 1 0, 4 1 0) is provided on the above-mentioned conveying line (1 0), and a polarizing plate (2, 3) is stuck on the surface of the liquid crystal wafer substrate (1); a polarizing plate is carried Line (500, 6 0) for carrying the polarizing plate on the above-mentioned inspection table (310'410) and sticking to the surface of the liquid crystal wafer substrate (1); wherein, the carrying line (10) has a In order to carry the liquid crystal wafer substrate (1) in a direction in which the short side extends, the turntable (200) moves the long side along the upstream side from the sticking stage (3 1 0, 4 1 0). The liquid crystal cell substrate (i) is rotated by 90 degrees. 2. The polarizing plate sticking device according to item 1 of the scope of patent application, wherein the rotary table (200) is provided at the entrance of the carrying line (100). 3. The polarizing plate sticking device according to item 1 or 2 of the scope of the patent application, wherein the polarizing plate conveying line (500, 600) has a parallel line (parallel line) that extends slightly parallel to the conveying line (40). 500a, 600A), and an orthogonal line (500B, 600B) which is slightly orthogonal to the conveying line in order to directly supply the polarizing plate to the above-mentioned sticking table (31, 40). 2075-5923-PF (Nl) .ptd Page 15