TW200410017A - Polarizer bonding device(II) - Google Patents

Abstract

An erect conveying line 50 is provided for conveying an erect crystal cell substrate 1. The erect conveying line 50 has a lower end supporting roller 11 supporting the lower end of the crystal cell substrate 1 and a pair of main surface supporting rollers 12 supporting the first and the second main surfaces of the crystal cell substrate 1 throughout the whole line thereof. In a polarizer bonding station 320, the polarizer 2, 3 are bonded on the first and the second surfaces of the crystal cell substrate 1. A first polarizer installing station 321A and a second polarizer installing station 321B which fixes the polarizer 2, 3 without release films and conveys the erect polarizer 2, 3 to a position facing the erect crystal cell substrate 1 are disposed on the both sides of the erect crystal cell substrate 1.

Description

200410017 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a polarizing plate sticking device. Even if the size of the liquid crystal wafer substrate is increased, the structure of the polarizing plate sticking device that can suppress the enlargement of the body ° [Previous Technology] First, FIG. 3 shows a schematic cross-sectional structure of a color liquid crystal display. The color liquid crystal display has a liquid crystal cell plate 1 composed of a glass substrate sandwiched between a liquid crystal, an alignment film, a transparent electrode, a color filter, and the like, and a surface and an inner surface of the liquid crystal cell substrate i. ^ = Polarizing plates 2, 3 on the surface soil side, TFT surface side). In the manufacturing process of the color liquid crystal display constituted in this way, various processes such as TFT array process, color filter process, main wafer assembly process, required module assembly process, etc. are required. Among them are liquid crystal wafers. Base ^ anti ^ = calender plate sticking process. Μ The polarizing plate sticking process is implemented after the liquid crystal cell assembly process. As shown in FIG. 4, on the first main surface side of the liquid crystal wafer substrate, the polarizing plate 2 is pulled away from the polarizing plate 2 in order to expose the release layer 2a of the adhesive layer adhered to one side of the polarizing plate 2. from. After that, as in the second one: the polarizing plate 2 on the assembly station 2A faces the liquid crystal wafer base coffee plate 2 and is closely adhered to the side of the liquid crystal wafer substrate ι by the roller 5 (the M side is

After the reverse surface of IfT is turned to the Λ crystal wafer substrate 1, the other side (TFT surface) of the liquid crystal wafer substrate 1 is similarly stuck to the polarizing plate 3. According to the application, and 'explaining the general technical information known to the applicants related to the above case, the conventional technology is based on the applicant's memory model 200410017 V. Description of the invention (2), to the present case Before the application, the applicant did not have all the known technical literature information disclosed, and the applicant himself did not know the application before the case. [Summary of the Invention] 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 color liquid crystal displays is mainly 15 inches. In the future, 30 inches and 45 inches have become mainstream. LCD monitors will speed up. '' The polarizing plate is adhered to the liquid crystal wafer substrate in a state where the liquid crystal wafer substrate is arranged in a flat shape, and the polarizing plate is conveyed and adhered to the first main surface, and then the liquid crystal wafer substrate is inverted, and the same transportation The polarizing plate is adhered to the second main surface. Therefore, if the color liquid crystal is large-scale, the length of the machine of the polarizing plate sticking device will inevitably become longer in the conveying direction. However, due to the limitation of the factory site, the machine cannot be infinitely enlarged. Therefore, the present invention provides a polarizing plate sticking device. In order to solve the above-mentioned problem, the size of the polarizing plate sticking device can be suppressed with the increase in the size of the color liquid crystal display. Means for solving the problem In order to solve the above-mentioned problem, in the polarizing plate adhering device of the present invention, the liquid crystal element substrate is carried on the first and second main surfaces of the liquid crystal element substrate and the polarizing plate is adhered, and the polarizing plate is adhered. The device includes: an upright conveying line, so that the liquid crystal wafer substrate is in an upright state, and the liquid crystal wafer substrate is conveyed in a predetermined direction; an upright polarizing plate sticking table is set on the upright conveying line, and the liquid crystal wafer substrate stands upright In the state of polarization, the polarized light on page 7 2075-5924 ~ PF (Nl) .ptd 5. The above-mentioned first and second main surface plates of the invention description (3) are adhered to the above-mentioned liquid crystal wafer substrate. On the above-mentioned substrate board, a large surface on a straight surface is erected in an upright direction (in a state of a good implementation type, the roller and the main surface of the surface are in a good implementation mode in close contact with the above-mentioned holding of the polymorphs). The light plate of the element substrate is upright. The light plate is pasted and attached to the polarizing plate to expand the liquid crystal cell. On the position where the polarizing plate is in the upright position, the width of the state is in the state of the state. The lower end of the lower end supports the first and second main expressions of the invention. Fortunately, the above-mentioned polarizing plate erection table is provided. The above liquid "makes the above-mentioned polarization of the present invention" because it can be stuck and can suppress the orientation). The upright conveying line has a 7L-based support roller that supports the liquid crystal crystal. In the above-mentioned upright polarizing plate, the main surface of the liquid crystal wafer substrate, at the same time as the first and second main planes facing the above, the liquid crystal wafer substrate is orthogonal even in the liquid crystal wafer substrate substrate transport direction. In a preferred embodiment of the present invention, the above-mentioned upright polarizing plate sticking stage includes: a first polarizing plate mounting table, which is arranged on a main surface side of one side of the liquid crystal wafer substrate in an upright state; and a second polarizing light; The plate mounting stand is provided on the main surface side of the other side of the liquid crystal wafer substrate in an upright state. In the above-mentioned upright polarizing plate sticking stand, the first and second polarizing plate mounting stands are used to simultaneously stick the polarizing plates on the first and first major surfaces. With the structure as described above, in the conventional technology, it is used as a polarizing plate sticking table. 200410017 Description of the invention (4) Since the conveying line for the first main surface and the conveying line for the second main surface are arranged in line, it is large in the liquid crystal wafer substrate. Under the condition of change, the expansion of the machine in the conveying direction (longitudinal direction) can be avoided. However, in the present invention, as a result of the liquid crystal wafer substrate being upright and transported, since the first and second main surfaces of the liquid crystal wafer substrate are adhered to the polarizing plate at the same time, the two adhesive conveying lines need not be arranged in line, and the conveying direction (length (Direction) Expansion of the machine. In another preferred implementation mode, the upright polarizing plate sticking stage is set up by the polarizing plate mounting stage, the polarizing plate is pasted on the first main surface of the liquid crystal wafer substrate, and then the second polarizing light is applied. A plate setting table is used to adhere the light plate to the second main surface of the liquid crystal wafer substrate. With this structure, for example, when the size of the polarizing plate adhered to the liquid crystal wafer substrate is different from the first and the first main surface, the position determines the $ relationship, and at the same time, the adhesion will cause problems, so the polarizing plate is pasted. After the liquid crystal is equal to the first main surface of the substrate, the polarizing plate is adhered to the second main surface of the liquid crystal wafer substrate, so that the accuracy of the polarizing plate can be maintained. In another preferred embodiment, a foreign object inspection table is further included. After the polarizing plate is adhered to the first and second main surfaces of the liquid crystal substrate, the foreign object is inspected. The polarizing plate sticking table and the above-mentioned foreign object inspection table form an upright polarizing plate sticking line. Also, in another preferred embodiment, upstream of the above-mentioned vertical conveying line =, a -substrate loading stage is further provided for stacking 4 in a state of a plurality of the above-mentioned liquid crystal cell substrates ^, and-a washing line , The first and second surfaces of the liquid crystal wafer substrate loaded from the substrate loading = conveyed, and washed in the state that the liquid crystal wafer substrate is upright; in the above upright movement, page 9, 2075-5924 -PF (Nl) .ptd 200410017 V. Description of the invention (5) A downstream side of the transport line is further provided with a substrate unloading table, and the liquid crystal wafer substrates to which the polarizing plates are attached are stacked in an upright state. With this structure, even in a substrate loading stage, a washing line, an upright polarizing plate adhesion line, and a substrate unloading stage, it is possible to suppress the expansion of the machine in a direction (width direction) orthogonal to the transport direction of the liquid crystal wafer substrate. [Embodiment] ^ Hereinafter, the implementation form of the polarizing plate sticking device of the present invention will be described with reference to Figs. 1 > and 2. FIG. 丨 is an overall plan view showing a schematic structure of the polarizing plate bonding apparatus 1000 according to this embodiment. Fig. 2 is an overall side view showing a schematic structure of a polarizing plate sticking device 1000 of this embodiment. The overall structure of the polarizing plate sticking device 1 is characterized in that the liquid crystal wafer substrate 1 is not transported in a planar manner, but rather the liquid crystal wafer substrate 1 is placed in an upright shape and transported. Polarizing plates 2 and 3 are respectively adhered on the second main surface. The liquid BΘ wafer element substrate 1 is transported in an upright state, and an upright transport line 50 is provided. The upright transport line & 〇 is provided at a predetermined pitch (P 11 ch) throughout its entire length. The lower end of the lower end of the liquid crystal wafer substrate supports rollers 11 ′ and a pair of main surface support rollers 12 that support the first and second main surfaces of the liquid crystal wafer substrate. During the transportation of the liquid crystal wafer substrate 1, for example, the drive shaft is connected to the lower support roller 11 so that the lower support roller 11 can be rotated 'to carry the liquid crystal wafer substrate 1. A substrate loading table 100 is provided on the upstream entrance side of the vertical conveying line 50,

Page 10 2075-5924-PF (Nl) .ptd 200410017

The plurality of substrate cards 110 are left on standby, and the substrate cards su 0 cause the plurality of liquid substrates 1 to be stacked in an upright state. The transfer of the liquid crystal wafer substrate 丨 from the substrate cassette 110 to the upright transfer line 50 can be easily realized by controlling and driving the roller lu provided at the lower end of the substrate cassette 110, for example. Other methods can also be used to construct a device using a robot arm. The substrate cassette 丨 丨 〇 is movably controlled in the substrate loading table 100 in a direction orthogonal to the conveyance direction of the upright conveyance direction 50. On the one hand, a substrate unloading stage 500 is provided on the downstream exit side of the vertical conveying line 50, and a plurality of substrate cassettes 510 are made to stand by in a state where a plurality of color liquid crystal displays are in an upright state. The substrate cassette 5 10 is the same as the substrate cassette 110 described above. The substrate unloading stage 500 is movably disposed in a direction orthogonal to the conveying direction with respect to the upright conveying direction 50. Details of the upright conveying line 50 are provided on the upright conveying line 50 'with a washing line 20 0 for cleaning the liquid crystal wafer substrate 1 in an upright state, and a polarizing plate when the liquid crystal wafer substrate is in an upright state 2, 3 The upright polarizing plate bonding line 3,000 adhered to the first and second main surfaces of the liquid crystal wafer substrate 1. Washing line 2 00 Washing line 2 0 includes a substrate receiving stage 2 1 0, a polishing stage 2 2 0, a rinse stage 230, a drying stage 240, and a carry-out stage 250. In the polishing table 2 2 0, the liquid crystal wafer substrate 1 is held by the pressing roller 2 2 0 and the sliding sandpaper 2 2 2, and the liquid crystal wafer substrate 1 is caused to slide by the sliding action of the sliding sandpaper 2 2 2. The dirt on the first and second main surfaces is peeled off. In the washing table 2 3 〇, the high-pressure washing water is sprayed from the nozzle 231 to the first and second parts of the liquid crystal wafer substrate 1.

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On the two main surfaces, the peeled dirt is washed away. High-pressure air is blown from the fan 241 to the first and main surfaces of the liquid crystal cell substrate 1 on the drying table 2 to force the liquid crystal cell substrate 1 to be dried. The upright polarizing plate sticking line 3 00 The upright polarizing plate sticking line 30 0 is provided with a panel cleaning table 31 for receiving the liquid crystal cell plate 1 carried out from the carry-out platform 25 o, and the polarizing plate 2 liquid crystal crystal Λ substrate 1 The polarizer attaching openings 3 2 0 on the first and second main surfaces, and the foreign object inspection table μ 0 which is used to perform foreign object contamination inspection. The panel cleaning table 310 is provided with a cleaner 311 for cleaning the first and second main surfaces of the liquid crystal wafer substrate i.

In the polarizing plate sticking stage 320 of the present embodiment, the polarizing plate 2 is supplied to the liquid crystal wafer substrate by using industrial and private materials that adhere the polarizing plates 2 and 3 to the first and second main surfaces of the liquid crystal wafer substrate simultaneously. The first polarizing plate conveying line 4 0 A on the first main surface side of 1 and the second polarizing plate conveying line 4 0 for supplying the polarizing plate 3 to the second main surface side of the liquid crystal wafer substrate 1 The liquid crystal cell substrate 1 is arranged to be linearly symmetric. Here, the polarizing plate 2 is a polarizing plate on the C {r surface side, and the polarizing plate 3 is a polarizing plate on the TFT surface side.

The first polarizing plate conveying line 4 0 A and the second polarizing plate conveying line 4 00 β are provided with cassette plates 410A and 410B, respectively, in which the polarizing plates 2 and 3 are multilayered in a planar state. 2, 3 and 420A, 430A, 420B, and 430B are removed and transported from the cassette plate 410A, and the cleaning plates 450A and 450B that perform cleaning of the polarizing plates 2 and 3, and peeling off the release film from the polarizing plates 2, 3 Taiwan 470A, 470B. Peeling tables 470A and 470B are provided with peeling control boxes 460A,

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4 6 0 B and the peeling arms 4 6 丨 A, 4 6 丨 b of the peelable release film along the direction of the polarizing plates 2 and 3 controlled by the control box. On the two sides of the liquid crystal wafer substrate 1, there are provided polarizing plates 2 and 3 having a 4 release film to attract and fix it, and to a position facing the main surface of the & wafer substrate 1 in an upright state, The first and second polarizing plate mounting platforms 32 1A and the second polarizing plate mounting platform 32 1B carry the polarizing plates 2 and 3 upright. In addition, μ has a crimping roller for crimping the polarizing plates 2 and 3 to the liquid crystal wafer substrate. Han Ώ Λ ^ 6 Α Λ polarizing plate bonding project-a polarizing plate bonding device constructed by the above structure 1 0 0 0 The liquid solution is a process of attaching the polarizing plates 2 and 3 of the element substrate 1. The liquid crystal cell 1 which stacks the substrate loading table 100 to the substrate cassette 丨 丨 〇 is conveyed upright to an upright conveying line 50. The liquid conveyed to the vertical conveying line 50 means that the element substrate 1 is sequentially cleaned in the cleaning line 20 0. The substrate is then dried and then washed, and the liquid crystal wafer substrate 1 is successively dried. Transported to the upright polarizing plate sticking line 3 ο 〇, in the polarizing plate sticking table 3 2 〇, the liquid crystal substrate 1 is held and transported in an upright state, and the polarizing plate 2 attracted and held on the first polarizing plate mounting table 321A The first host adhered to the liquid crystal wafer substrate;

surface. On the same day, the polarized light i 3 attracted and held on the second polarizing plate erection stage 3 2 i B is adhered to the second main surface of the liquid crystal wafer substrate 丨. Thereafter, in the foreign object inspection table 330, it is checked whether foreign substances such as air and dirt are mixed between the first and second main surfaces and the polarizing plates 2, 3. The color liquid crystal display at the end of the foreign matter contamination inspection is stored in the base

2075-5924-PF (Nl) .ptd

Page 13 ZUU41UU17 V. Description of the invention (9) The substrate card E51 of the machine, each substrate card is stuck. Carrying action and effect Green ϋ, in the conventional polarizing plate sticking device, it can be moved upright 32 " Possible to stick polarizing plates 2, 3?: Π; ί polarizing plate sticking table φ]. ^, Η ^, hunting Therefore, even in a large-ρ manufacturing machine of the liquid crystal wafer substrate 1, the magnification is increased in the direction C (direction of visibility) orthogonal to the liquid crystal wafer substrate 1. Light plate 2 and 3 3 i Γ application type of polarizing plate sticking device 'because the first and second main surfaces of the polarized broadcasting * plate 1 are straight; ::: Use a polarizing plate sticking device as known in the general Two-stick sticking 2: Arranged in line, m can suppress the enlargement of the conveying direction (length direction). J21, step 2 is the same as the polarizing plate of this embodiment, which is mounted on the substrate 4 and cut off. η η Clean line 2 GG, upright polarizing plate bonding line 3 GG, and two substrates I-shaped ^ L In some transportation processes, the liquid crystal substrate 1 is placed in an upright position "to be transported", which can suppress the transport direction with the entire device. The expansion of the machine in the orthogonal direction (width direction). In this embodiment, as a preferred example, although the polarizing plates 2 and 3 are simultaneously adhered to the first and second main surfaces of the liquid crystal wafer substrate 丨In the upper structure, when the size of the polarizing plate adhered to the liquid crystal substrate 1 is different from the first and second main surfaces, due to the problem of the position of the polarizing plate relative to the liquid crystal substrate 1 and the like, the polarizing plate is simultaneously adhered and generated In the case of a problem, the polarizing plate may be adhered to the first main surface.

200410017 V. Description of the invention (10) The structure in which the polarizing plate is adhered to the second main surface. Also, in this embodiment, a cleaning table 3 1 0 and a foreign object inspection table 3 3 0, and an upright polarizing plate bonding line 300 of 320 are added, and even a cleaning table 2 0 and a substrate unloading are used. The state of the stage 500 is negative so that the polarizers 2 and 3 can be adhered to the liquid crystal wafer substrate 1 in the upright dimension 320. However, the technical scope of the present invention is not limited to the interpreter, but according to the scope of the patent application, the meaning of the patent scope is equal and the effect of all the inventions in the scope of the present invention, even if the liquid crystal wafer substrate An example of suppressing the increase of the machine can also be described. For the substrate loading stage 100 with a polarizing plate sticking stage, it is explained that the present invention is delimited by the above embodiment of the polarizing plate sticking stage. In addition, it includes both the application and the change. Polarizer attached to large

200410017 Brief Description of Drawings Fig. 1 is an overall plan view showing a schematic structure of a polarizing plate sticking device according to this embodiment. Fig. 2 is an overall side view showing a schematic configuration of a polarizing plate sticking device according to this embodiment. FIG. 3 is a schematic diagram of a cross-sectional structure of a color liquid crystal display. FIG. 4 is a first cross-sectional process drawing schematically showing a polarizing plate bonding process of a liquid crystal wafer substrate. Fig. 5 is a second cross-sectional engineering drawing schematically showing a polarizing plate bonding process of a liquid crystal wafer substrate.

Symbol Description

1 ~ LCD wafer substrate, 2, 3 ~ polarizing plate; 10-< LCD display failure, 11--lower end support roller 12-^ main surface support roller 50 0 ~ upright transport line; 100 ~ substrate loading table; 110, 5 1 0 ~ substrate card 200 ~ washing line; 210 ~ substrate receiving table; 220 ~ grinding table; 221 ~ pressing roller; 222 ~ sliding sandpaper; 230 ~ washing station;

2075-5924-PF (Nl) .ptd Page 16 200410017 Brief description of the drawings 2 3 1 ~ Nozzle; 240 ~ Drying table; 2 4 1 ~ Fan; 250 ~ Moving out table; 3 0 ~ Polarizing plate adhesion line; 3 1 0 ~ panel cleaning table; 3 11 ~ cleaners; 3 2 0 ~ polarizing plate sticking table; 321A ~ first polarizing plate mounting table;

321B ~ second polarizing plate erecting stage; 322A, 322B ~ pressing roller; 3 3 0 ~ foreign object inspection table; 40 0A ~ first polarizing plate conveying line; 40 0B ~ second polarizing plate conveying line; 410A, 410B ~ Card 1 £ board; 420A, 430A, 420B, 43 0B ~ handling table; 440A, 440B ~ handling roller; 450A, 450B ~ cleaning table; 460A, 460B ~ peeling control box;

4 6 1 A, 4 6 1 B ~ peeling film; 470A, 470B ~ peeling stage; 5000 ~ substrate unloading stage; 1000 ~ polarizing plate sticking device.

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Claims (1)

200410017 6. Scope of patent application ^ = A kind of polarizing plate sticking device, on the first and second main surfaces of the liquid crystal wafer substrate (}), for carrying the liquid crystal wafer substrate (1) and sticking the polarizing plate (2) 3) The polarizing plate sticking device includes an upright conveying line (50), so that the liquid crystal wafer substrate (1) is in an upright state, and the liquid crystal wafer substrate (1 is always vertically polarized) is conveyed in a predetermined direction. In the plate (2, 3, the second main table 2) As mentioned above in the straight state, the end supports rolling above the first 3 · As in the above (2 ^ 3) light plate is erected at the same time, in the above mentioned) upright. 4. As described above, the straight light plate sticking table (320) is provided on the upright conveying line (50 where the liquid crystal cell substrate (1) is in an upright state and polarized light) is adhered to the first part of the liquid crystal cell substrate (1). One side. The polarizing plate sticking device described in the first item of Shenyan's patent scope, the vertical conveying line (50) of the liquid crystal cell substrate (1) stands upright, and has a lower body (11) supporting the lower end of the liquid crystal cell substrate (1). And a main surface supporting roller (12) supporting the above-mentioned liquid crystal wafer substrate (1) and the second main surface. The polarizing plate sticking device described in item 1 or 2 of the scope of the patent application, the upright polarizing plate sticking table (320) has a polarizing table (321A, 321B) for the above-mentioned polarizing plate to closely contact the main surface of the liquid crystal wafer substrate (1). ), Keeping the positions of the polarizing plates (2, 3) facing the liquid crystal wafer substrate (]) and the first main surface in an upright state, so that the polarizing plates (2, 3 claim 3 of the patent scope The polarizing plate point-applying device described above, and its vertical polarizing plate sticking table (3 2 0) includes: 2075-5924-PF (Nl) .ptd Page 18 200410017 6. Scope of patent application-The first polarizing plate erection table (32 1A) is placed on one side of the above-mentioned liquid crystal cell substrate (1) in an upright state. Main surface side; a second polarizing plate erecting stage (3 2 1 B) is arranged on the main surface side of the other side of the liquid crystal wafer substrate (1) in an upright state. 5. The polarizing plate sticking device as described in item 4 of the scope of the patent application, wherein the upright polarizing plate sticking table (320), the first polarizing plate mounting table (321A) and the second polarizing plate mounting table (321B) ), And the polarizing plates (2, 3) are adhered to the first and second main surfaces at the same time. 6. The polarizing plate sticking device according to item 4 of the scope of patent application, wherein the above-mentioned polarizing plate sticking table (320) mounts the polarizing plate (2, 3) through the polarizing plate mounting table (3 2 1 A). After being adhered to the first main surface of the liquid crystal wafer substrate (1), the polarizing plate (2, 3) is adhered to the liquid crystal wafer substrate through the second polarizing plate mounting table (32 1 B). 1) The above-mentioned second main surface. 7. The polarizing plate adhering device according to item 1 of the scope of patent application, further comprising a foreign object inspection table (33), where the polarizing plate (2, 3) is adhered to the liquid crystal wafer substrate (1). The first and second main surfaces are inspected for foreign matter incorporation; the above-mentioned upright polarizing plate sticking table (3 2 0 ) And the above-mentioned foreign object inspection table (33), forming an upright polarizing plate sticking line (300). 08 The polarizing plate sticking device according to item 1 of the scope of patent application, wherein the upright carrying line (50) is upstream On the side, a substrate loading port (100) is provided for stacking a plurality of the above-mentioned wave crystal wafer substrates (1) in an upright position, and a washing line is provided from the substrate loading table (丨 〇〇 200410017 VI. Patent application scope) The first and second surfaces of the above-mentioned liquid crystal wafer substrate (1) are washed 'under the shape of the liquid crystal wafer substrate (1) standing upright', and washed in the upright transportation. On the downstream side of the line (50), a substrate unloading table (500) is further provided, and the liquid crystal cell substrates (1) to which the polarizing plates (2, 3) are pasted are stacked in an upright state. 2075-5924-PF (Nl) .ptd Page 20