TW201803002A - Suction holding member, apparatus for suction holding and transporting a liquid crystal cell, and optical film laminating line - Google Patents

Abstract

The utility model relates to an adsorption element, liquid crystal unit adsorb mobile device, reach blooming coating line. The utility model provides an arbitrary kind in MD and the TD transport mode can be deald with and the adsorption element effective work area proportion, that be used for adsorbing the liquid crystal unit among the adsorption element is improved. This adsorption element be equipped with with a plurality of absorption portions of the surface contact of liquid crystal unit, in the horizontal plane the configuration region of absorption portion becomes " protruding " font. Furthermore, the utility model discloses it adsorbs the mobile device and possesses the blooming coating line that this liquid crystal unit adsorbs the mobile device still to provide the liquid crystal unit that possesses this adsorption element.

Description

Adsorption member, liquid crystal cell adsorption moving device, and optical film bonding production line

The present invention relates to an adsorption member, a liquid crystal cell adsorption moving device including the same, and an optical film bonding production line including the liquid crystal cell adsorption moving device.

Generally, a liquid crystal cell conveyed on an optical film bonding production line for manufacturing a liquid crystal display device is rectangular, and has long sides and short sides. In addition, the liquid crystal cell may be conveyed by a MD method in which the long side of the liquid crystal cell is conveyed along the liquid crystal cell conveyance direction, and a TD method in which the long side of the liquid crystal cell is conveyed perpendicular to the liquid crystal cell conveyance direction.

According to the processing requirements of the liquid crystal cells in the manufacturing steps, any one of the above two transportation methods is implemented on the same production line. Therefore, it is required that the liquid crystal cell adsorption moving device on the production line can respond to both of the above-mentioned transportation methods.

Various types of liquid crystal cell adsorption moving devices capable of supporting different transportation methods are known. For example, patent documents 1 and 2 The liquid crystal cell suction moving device sucks the liquid crystal cell from above and moves. In addition, the liquid crystal cell adsorption moving device described in Patent Document 3 supports the liquid crystal cell and moves while being supported from below.

[Prior technical literature] [Patent Literature]

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-12319

Patent Document 2: Japanese Patent Application Laid-Open No. 2013-107185

Patent Document 3: Japanese Patent Application Laid-Open No. 08-112793

However, each of the above-mentioned conventional adsorption moving devices includes a rectangular adsorption member having the same shape as that of the liquid crystal cell. In this case, in order to make the adsorption member respond to any of the MD and TD transport methods, the size of the adsorption member can only be increased so that the short side of the rectangular adsorption member is longer than the long side of the liquid crystal cell. As a result, the size of the suction member and the suction moving device becomes large, and the proportion of the invalid working area in the suction member increases.

The present invention aims to solve the above technical problems, and provides an adsorption member capable of increasing the effective working area ratio of the adsorption member in response to any of the MD and TD transport methods. Furthermore, the present invention provides a liquid crystal cell adsorption moving device including the adsorption member, and an optical film bonding production line including the liquid crystal cell adsorption moving device.

Specifically, the first aspect of the present invention is an adsorption structure The device is used for adsorbing a liquid crystal cell, and is provided with a plurality of adsorption portions in contact with the surface of the liquid crystal cell. The arrangement area of the adsorption portions in the horizontal plane becomes a "convex" shape.

Moreover, in the adsorption member of the second aspect of the present invention, in the first aspect, the adsorption portion is made of an elastic material. This reduces the possibility of damaging the surface of the liquid crystal cell when it is in contact with the surface of the liquid crystal cell for adsorption.

Preferably, in the third aspect of the present invention, the adsorption member is the first or second aspect, the adsorption member is an adsorption plate having a “convex” shape in a horizontal plane, and the adsorption unit is disposed on the adsorption plate Lower surface.

Preferably, the adsorption member according to the fourth aspect of the present invention is such that, in the third aspect, the adsorption portion is uniformly arranged on the lower surface of the adsorption plate.

In addition, it is preferable that the adsorption member of the fifth aspect of the present invention is the first or second aspect, wherein the adsorption member is composed of at least one adsorption arm extending in a liquid crystal cell transport direction and is perpendicular to the liquid crystal cell transport direction A suction frame made up of a plurality of suction arms extending in the direction of the direction, the shape of the envelope of the suction frame in the horizontal plane becomes a "convex" shape, and the suction portion is arranged on the lower surface of the suction arm. This can further reduce the weight of the suction member.

Preferably, in the sixth aspect of the present invention, the adsorption member is such that, in the fifth aspect, the adsorption unit is uniformly arranged on the adsorption arm.

In addition, it is preferable that the adsorption structure of the seventh aspect of the present invention In the first aspect or the second aspect, the adsorption member is an adsorption frame composed of at least one adsorption arm extending in a liquid crystal cell transport direction and a plurality of adsorption arms extending in a direction perpendicular to the liquid crystal cell transport direction. The shape of the envelope of the adsorption frame in the horizontal plane is a "convex" shape, and the adsorption portion is disposed on the upper surface of the adsorption arm. This can further reduce the weight of the suction member.

In the seventh aspect of the present invention, it is preferable that the adsorption member of the eighth aspect of the present invention is such that the adsorption unit is uniformly arranged on the adsorption arm.

According to each of the adsorption members of the aforementioned forms, it is possible to respond to any of the MD and TD transport methods, and it is possible to increase the effective working area ratio in the adsorption member and prevent the device from becoming larger.

Further, a ninth aspect of the present invention is a liquid crystal cell adsorption moving device capable of moving the liquid crystal cell in a state where the liquid crystal cell is adsorbed. The liquid crystal cell adsorption moving device is located above the liquid crystal cell transportation path and includes: first to sixth In any of the above-mentioned forms of the adsorption member, the adsorption part faces the liquid crystal cell toward the liquid crystal cell transportation path, and the mirror-symmetrical line of a "convex" shape is parallel to the liquid crystal cell transportation direction; the vacuum pump generates a negative pressure to adsorb the liquid crystal cell; An air passage communicates the vacuum pump with the adsorption unit; an up-and-down movement means moves the adsorption member up and down; and a horizontal movement means moves the adsorption member horizontally.

In a tenth aspect of the present invention, the liquid crystal cell adsorption moving device is the ninth aspect, in which the adsorption member is disposed on the downstream side of the liquid crystal cell transport path with the bottom edge of the "convex" shape. Therefore, whether the liquid crystal cell is transported in the MD direction or in the TD direction In the liquid crystal cell, the front end of the liquid crystal cell can use the same position in the adsorption member, that is, the bottom edge of the "convex" shape as a reference to fix the relative position between each other. Therefore, the liquid crystal cell can be positioned at the same position regardless of the direction in which the liquid crystal cell is transported.

In addition, in the eleventh aspect of the liquid crystal cell adsorption moving device of the present invention, in the ninth aspect or the tenth aspect, the intake path is composed of a main intake path and a plurality of sub-intake paths. One end is in communication with the vacuum pump, and the other end of the main suction path is branched into the plurality of sub-intake paths, each sub-intake path is in communication with at least one adsorption section, and is provided in the main and each sub-intake paths respectively. A valve that can be opened and closed independently. Therefore, according to different sizes and transportation methods of the liquid crystal cell, the actual adsorption area in the adsorption member can be flexibly arranged.

In addition, a twelfth aspect of the present invention is a liquid crystal cell adsorption moving device capable of moving the liquid crystal cell in a state where the liquid crystal cell is adsorbed. The liquid crystal cell adsorption moving device is located below the liquid crystal cell transportation path, and includes the seventh aspect or the first aspect. The eighth form of the above-mentioned adsorption member, the adsorption unit facing the liquid crystal cell transport path is opposite to the liquid crystal cell, and the mirror-like symmetry line of the "convex" shape is parallel to the liquid crystal cell transport direction; the vacuum pump generates a negative pressure for adsorbing the liquid crystal cell; Communicating the vacuum pump with the adsorption unit; moving up and down to move the adsorption member up and down through the gap between the transport rollers on the liquid crystal cell transport path; and a horizontal movement mechanism to transport the adsorption member along the liquid crystal cell transport path The gap between the rollers moves horizontally.

In addition, the liquid crystal cell of the thirteenth aspect of the present invention In the twelfth aspect, the mobile device is configured such that the suction member is disposed on the downstream side of the liquid crystal cell transport path with the bottom edge of the “convex” shape. Therefore, whether the liquid crystal cell is transported in the MD direction or the liquid crystal cell is transported in the TD direction, the front end of the liquid crystal cell can be fixed at the relative position with reference to the same position in the adsorption member, that is, the bottom of the "convex" shape. . Therefore, the liquid crystal cell can be positioned at the same position regardless of the direction in which the liquid crystal cell is transported.

Furthermore, in the fourteenth aspect of the liquid crystal cell adsorption moving device of the present invention, in the twelfth aspect or the thirteenth aspect, the suction path is composed of a main suction path and a plurality of sub-intake paths, and the main suction One end of the passage is in communication with the vacuum pump, and the other end of the main inhalation passage is branched into the plurality of sub-inhalation passages. Each of the sub-inhalation passages communicates with at least one adsorption section. Equipped with a valve that can be opened and closed independently. Therefore, according to different sizes and transportation methods of the liquid crystal cell, the actual adsorption area in the adsorption member can be flexibly arranged.

In addition, a fifteenth aspect of the present invention is an optical film bonding production line including: a liquid crystal cell conveying path provided with a plurality of conveying rollers to convey the liquid crystal cell; an optical film bonding device for bonding an optical film on the surface of the liquid crystal cell; The liquid crystal cell position sensor detects whether the liquid crystal cell has reached the predetermined position of the liquid crystal cell transportation path; the liquid crystal cell adsorption moving device described in any one of the ninth to fourteenth forms, which has reached the regulation of the liquid crystal cell transportation path The liquid crystal cell at the position is moved to adjust the operation start position of the liquid crystal cell and the optical film bonding device; the control unit controls the liquid crystal cell to adsorb the mobile device based on a detection signal from the liquid crystal cell position sensor. The positioning operation, the rotation of the conveying roller, and the operation of the optical film bonding apparatus automatically perform the optical film bonding step.

According to the optical film bonding production line as described above, it is possible to respond to any of the MD and TD transport methods, and it is possible to increase the effective working area ratio in the adsorption member and prevent the device from becoming larger.

Furthermore, it is desirable that the optical film bonding production line of the sixteenth aspect of the present invention includes the liquid crystal cell adsorption and moving device, an optical film bonding device corresponding thereto, and another liquid crystal cell in the fifteenth aspect. The suction moving device and another optical film bonding device corresponding to it, the one liquid crystal cell suction moving device is any one of the ninth to eleventh aspects, the liquid crystal cell suction moving device described above, and the one optical film bonding device The optical film is bonded to the lower surface of the liquid crystal cell. The other liquid crystal cell adsorption and moving device is any one of the twelfth to fourteenth forms. The liquid crystal cell adsorption and moving device described above, and the other optical film bonding device. An optical film is bonded to the upper surface of the liquid crystal cell. According to the above optical film bonding production line, even if the liquid crystal cell is not turned upside down, the optical film can be bonded on the upper and lower sides of the liquid crystal cell.

In addition, in the seventeenth aspect of the present invention, the optical film bonding production line in the fifteenth aspect includes two liquid crystal cell adsorption moving devices and two corresponding optical film bonding devices respectively, and the liquid crystal cell adsorption The mobile device is any one of the ninth to eleventh forms. The liquid crystal cell adsorption moving device described above. The optical film bonding device attaches an optical film to a lower surface of the liquid crystal cell. The optical film bonding production line includes two There is also a turning machine between the optical film bonding device to turn the liquid crystal cell upside down 结构。 Structure.

In addition, in the eighteenth aspect of the present invention, the optical film bonding production line is the fifteenth aspect, which includes two liquid crystal cell adsorption moving devices and two corresponding optical film bonding devices respectively, and the liquid crystal cell adsorption The mobile device is any one of the twelfth to fourteenth forms. The liquid crystal cell adsorption moving device described above. The optical film bonding device attaches an optical film to the upper surface of the liquid crystal cell. The optical film bonding production line An inverting mechanism for inverting the liquid crystal cell is also provided between the optical film bonding devices.

According to the seventeenth aspect or the eighteenth aspect of the optical film bonding production line, the optical films can also be bonded to both sides of the liquid crystal cell.

In addition, in the nineteenth aspect of the present invention, in the optical film bonding production line, in any one of the fifteenth to eighteenth aspects, a predetermined position detected by the liquid crystal cell position sensor is provided in a liquid crystal cell The side on the downstream side in the conveyance direction in the middle is projected to the downstream side in the conveyance direction than the side on the downstream side in the conveyance direction in the suction member.

Thereby, the optical film bonding apparatus can bond the optical film more accurately without deviation.

A‧‧‧ LCD cell supply department

B‧‧‧ LCD unit conveying path

C‧‧‧The first optical film conveying path

D‧‧‧Second optical film conveying path

E‧‧‧LCD unit discharge section

F‧‧‧ Optical Film

H‧‧‧ carrier film

U‧‧‧LCD unit

BP1‧‧‧The first liquid crystal cell position sensor

BP2‧‧‧Second LCD cell position sensor

BR1‧‧‧The first liquid crystal cell adsorption and winding device

BR2‧‧‧Second liquid crystal cell adsorption and winding device

BR3‧‧‧ third liquid crystal cell adsorption and winding device

BT‧‧‧LCD cell adsorption mobile device

BT1‧‧‧The first liquid crystal cell adsorption mobile device

BT2‧‧‧Second liquid crystal cell adsorption mobile device

BT-B10‧‧‧Adsorption Plate

BT-B20, 30‧‧‧ Adsorption Department

BT-G‧‧‧Suction path

BT-G10‧‧‧Main suction path

BT-G20 ‧‧‧ sub suction path

BT-H10‧‧‧Adsorption frame

BT-H20‧‧‧Adsorption arm

BT-H30‧‧‧Adsorption Department

BT-HT‧‧‧Horizontal Movement Means

BT-HT10‧‧‧Guide

BT-HT20‧‧‧Sliding part

BT-P‧‧‧Vacuum pump

BT-ST‧‧‧Move up and down

BT-ST10‧‧‧Guide tube

BT-ST20‧‧‧Sliding lever

BT-V10‧‧‧Main valve

BT-V20‧‧‧Sub valve

CF1‧‧‧First Optical Film Supply Department

CF2‧‧‧The first optical film cutting section

CF3‧‧‧First Optical Film Laminating Section

CF4‧‧‧First optical film winding section

DF1‧‧‧Second Optical Film Supply Department

DF2‧‧‧Second optical film cutting section

DF3‧‧‧Second Optical Film Laminating Section

DF4‧‧‧Second Optical Film Winding Section

Ru, Rd‧‧‧ Laminating roller

SP‧‧‧ Stripping Means

FIG. 1 is a schematic structural diagram of an optical film bonding production line having a liquid crystal cell adsorption moving device according to the present invention.

FIG. 2 is a schematic structural diagram of a liquid crystal cell adsorption mobile device of the first embodiment Sketch map.

3A and 3B are plan views of the adsorption plate of the first embodiment as viewed from below. FIG. 3A shows the state of the TD transport method, and FIG. 3B shows the state of the MD transport method.

4A to 4F are schematic views showing a suction movement operation of the liquid crystal cell suction movement device according to the first embodiment.

5A and 5B are side views of a liquid crystal cell adsorption moving device according to a second embodiment. FIG. 5A illustrates a state where the adsorption frame is positioned below the liquid crystal cell transport path, and FIG. 5B illustrates a state where the adsorption frame is positioned above the liquid crystal cell transport path. 5C and 5D are plan views of the adsorption plate of the second embodiment as viewed from above. FIG. 5C shows the state of the TD transport method, and FIG. 5D shows the state of the MD transport method.

6A to 6F are schematic diagrams showing a suction moving operation of the liquid crystal cell suction moving device according to the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following examples are for illustration only, and are not intended to limit the present invention. In addition, the terms "first" and "second" used in the description are merely terms used to distinguish different objects belonging to the same category, and do not have restrictive meanings such as the order of the conveying directions.

The terms "front", "rear", "left", "right", "up", and "down" used in the present invention refer to the "front" and "rear" when moving along the liquid crystal cell transport path from the upstream side to the downstream side. "," Left "," right "," up ", and" down "directions.

In addition, the “liquid crystal cell” in this specification is not limited to a liquid crystal panel, and can be understood as any substrate-like material to which an optical film is bonded in the manufacture of a display panel. In the present specification, the “optical film” refers to an arbitrary thin film for adjusting the optical characteristics of a display panel, such as a polarizing film.

First, referring to FIG. 1, an optical film bonding production line (hereinafter, sometimes referred to as a production line) having a liquid crystal cell adsorption and movement device (hereinafter sometimes referred to as an adsorption and movement device) will be described.

As shown in FIG. 1, the production line includes a liquid crystal cell supply section A, a liquid crystal cell transport path B, a first optical film transport path C, a second optical film transport path D, and a liquid crystal cell discharge section E.

The liquid crystal cell supply section A, the liquid crystal cell transport path B, and the liquid crystal cell discharge section E are sequentially connected. The first optical film transport path C and the second optical film transport path D are respectively located above or below the liquid crystal cell transport path B.

The first optical film conveying path C includes a first optical film supply section CF1, which is disposed on the most upstream side of the first optical film conveying path C, and supplies the first optical film laminate, and a first optical film cutting section CF2, which is disposed Downstream of the first optical film supply section CF1, the first optical film laminate supplied from the first optical film supply section CF1 is cut into a sheet of a predetermined length; the first optical film bonding section CF3 is disposed at the first An optical film cutting section CF2 is disposed downstream of the liquid crystal cell transport path B, and a first optical film is bonded to one side of the liquid crystal cell U; a first carrier film winding section CF4 is disposed on the first optical film transport path C On the most downstream side, the first carrier film after the first optical film is peeled from the first optical film laminate is wound.

The second optical film conveyance path D includes a second optical film supply section DF1, which is disposed on the most upstream side of the second optical film conveyance path D, and supplies the second optical film laminate, and a second optical film cutting section DF2, which is disposed Downstream of the second optical film supply section DF1, the second optical film layered body supplied from the second optical film supply section DF1 is cut into a sheet of a predetermined length; the second optical film bonding section DF3 is disposed at the first The second optical film cutting section DF2 is disposed downstream of the liquid crystal cell transport path B, and a second optical film is bonded to one side of the liquid crystal cell U; the second carrier film winding section DF4 is disposed on the second optical film transport path D On the most downstream side, a second carrier film after the second optical film is peeled from the second optical film laminate is wound.

The liquid crystal cell U enters the liquid crystal cell transport path B from the liquid crystal cell supply section A.

From the liquid crystal cell supply section A side, the liquid crystal cell transportation path B has, in order, a first liquid crystal cell suction winding device BR1, which is located after the liquid crystal cell supply section A, and sucks the liquid crystal cell U entering the liquid crystal cell transportation path B as needed. Twisting; the first liquid crystal cell suction moving device BT1 is located on the upstream side near the first optical film bonding portion CF3, sucks the liquid crystal unit U, moves and adjusts it to the operation start position of the first optical film bonding portion CF3; The first liquid crystal cell position sensor BP1 is located near the upstream side of the first optical film bonding portion CF3 and detects whether the liquid crystal cell U has reached the first predetermined position; the second liquid crystal cell adsorption and winding device BR2 is located on the first optical film After the bonding portion CF3, the liquid crystal cell U passing through the first optical film bonding portion CF3 is adsorbed and wound as needed; the second liquid crystal cell suction-moving device BT2 is located near the second optical film bonding portion On the upstream side of DF3, the liquid crystal cell U is adsorbed, and it is moved and adjusted to the operation start position of the second optical film bonding portion DF3. The second liquid crystal cell position sensor BP2 is located near the second optical film bonding portion DF3. On the upstream side, it is detected whether the liquid crystal cell U has reached the second predetermined position; the third liquid crystal cell adsorption winding device BR3 is located after the second optical film bonding portion DF3, and if necessary, the liquid crystal passing through the second optical film bonding portion DF3 is adsorbed. The unit U is wound. In addition, as necessary, a turning mechanism for turning the upper and lower surfaces of the liquid crystal cell is provided at a position near the second liquid crystal cell suction winding device BR2.

The liquid crystal cell U after bonding the optical film is discharged from the liquid crystal cell transport path B to the liquid crystal cell discharge section E, and is used for a downstream step.

Hereinafter, the structure of the optical film bonding part on a production line is demonstrated in more detail.

As shown in FIGS. 4A to 4F, the optical film bonding portion is composed of a pair of upper and lower bonding rollers Ru and Rd, and the two bonding rollers Ru and Rd can be moved closer to or farther from each other by moving up and down, respectively. A peeling means SP is provided in front of either of the bonding rollers Ru and Rd, and the carrier film H supporting the optical film F is peeled off.

On the liquid crystal cell transport path B, when the liquid crystal cell U enters between a pair of laminating rollers Ru and Rd in a separated state, the two laminating rollers Ru and Rd approach each other in the up-down direction to sandwich the liquid crystal cell U, The front end of the optical film F extended from the peeling means SP is bonded to the front end surface of the liquid crystal cell U. After that, the bonding rollers Ru and Rd are rotated, and the liquid crystal cell U is transported to the downstream side in a sandwiched state. At this time, SP The optical film F from which the carrier film H has been peeled is pressed by the bonding rollers Ru and Rd, and bonded to the surface of the liquid crystal cell U while it is moving. Thereby, the optical film F is bonded to one surface of the liquid crystal cell U.

When bonding the above-mentioned optical film F, the first and second liquid crystal cell suction moving devices BT1 and BT2 are required to feed the front end of the liquid crystal cell U into the pair of bonding rollers Ru and Rd with good position accuracy. That is, the liquid crystal cell U is aligned to the work start position of the optical film bonding portion by the first and second liquid crystal cell suction moving devices BT1 and BT2.

<First Embodiment>

Hereinafter, a first embodiment of the liquid crystal cell adsorption and movement device of the present invention will be described with reference to FIG. 2.

As shown in FIG. 2, the liquid crystal cell suction moving device BT includes a suction plate BT-B10, a vacuum pump BT-P, a suction path BT-G, a horizontal moving mechanism BT-HT, and a vertical moving mechanism BT-ST. In this embodiment, the liquid crystal cell adsorption moving device BT is located above the liquid crystal cell transport path B.

The adsorption plate BT-B10 is a member that is in direct contact with the liquid crystal cell U when the liquid crystal cell adsorption mobile device BT adsorbs the liquid crystal cell U. As shown in FIG. 2, a plurality of suction sections BT-B20 are arranged on the lower surface of the suction plate BT-B10, and the suction sections BT-B20 face the liquid crystal cell U downward. When adsorption is not performed, the adsorption plate BT-B10 is positioned above the liquid crystal cell transport path B with a certain height. When the liquid crystal cell U is adsorbed, the adsorption plate BT-B10 is lowered by the up-and-down moving mechanism BT-ST described later, so that the adsorption portion BT-B20 is in contact with the upper surface of the liquid crystal cell U of the liquid crystal cell transport path B. In order to prevent damage to the surface of the liquid crystal cell U, it is preferable that the suction part BT-B20 is a suction nozzle made of an elastic material such as rubber.

3A and 3B are plan views of the adsorption plate BT-B10 as viewed from above in a downward direction. As shown in the plan view, the shape of the suction plate BT-B10 becomes a "convex" shape, and the mirror symmetrical line L of the "convex" shape profile is parallel to the liquid crystal cell transportation direction of the liquid crystal cell transportation path B.

The suction plate BT-B10 is preferably arranged so that the bottom edge of the "convex" shape is positioned on the downstream side of the liquid crystal cell transport path. Therefore, whether the liquid crystal cell is transported in the MD direction or the liquid crystal cell is transported in the TD direction, the front end of the liquid crystal cell can be fixed at the relative position with reference to the same position of the adsorption member, that is, the bottom of the "convex" shape. Therefore, the liquid crystal cell can be positioned at the same position regardless of the direction in which the liquid crystal cell is transported.

In addition, as long as the arrangement area of the adsorption portion BR-B20 on the lower surface of the adsorption plate BT-B10 is a “convex” shape, it is preferable that the adsorption portion BT-B20 is uniformly arranged on the lower surface of the adsorption plate BT-B10.

Since the adsorption portion BT-B20 is arranged in a “convex” shape region, as shown in FIGS. 3A and 3B, any of the liquid crystal panels in TD and MD transportation can be appropriately adsorbed by the adsorption plate. As a result, the adsorption plate BT-B10 of this embodiment can respond to both MD and TD transportation, and can reduce the ratio of ineffective area and prevent the device from increasing in size compared with the conventional rectangular adsorption plate.

In addition, as shown in FIG. 3, the side on the downstream side in the transport direction of the liquid crystal cell to be adsorbed is from the side on the downstream side in the transport direction of the adsorption plate. (Ie, the bottom edge of the "convex" glyph). The reason is that the tip of the liquid crystal cell is sandwiched by the bonding rollers Ru and Rd in a state where the liquid crystal cell is adsorbed and fixed. By clamping the front end of the liquid crystal cell with the bonding rollers Ru and Rd and releasing the suction, the bonding can be performed more accurately without deviation. That is, in the present invention, although the liquid crystal cell may be housed within the contour range of the adsorption plate, it is more preferable to perform adsorption and fixation in a state where the tip of the liquid crystal cell slightly protrudes.

As long as the vacuum pump BT-P can generate a negative pressure that adsorbs the liquid crystal cell U, a known product can be used.

The suction passage BT-G communicates the vacuum pump BT-P with the suction part BT-B20, and has a main suction passage BT-G10 and a plurality of sub-suction passages BT-G20. One end of the main suction passage BT-G10 is in communication with the vacuum pump BT-P, and the other end of the main suction passage BT-G10 is branched into a plurality of sub suction passages BT-G20, which are respectively connected to the adsorption part BT on the adsorption plate BT-B10 -B20 is connected. In addition, each of the sub-intake passages BT-G20 may be further branched into a plurality of capillary suction passages, and communicate with the adsorption unit BT-B20 through the capillary suction passages.

As shown in FIG. 2, a main valve BT-V10 is provided in the main intake passage BT-G10, and a sub valve BT-V20 is provided in each of the sub intake passages BT-G20. The main valve BT-V10 and each sub valve BT-V20 can be opened and closed independently. By opening and closing the main valve BT-V10, the adsorption plate BT-B10 as a whole can communicate with or block the vacuum pump BT-P. In addition, when the main valve BT-V10 is opened, by selectively opening and closing the sub-valve BT-V20, it is possible to flexibly adjust an area where the suction force is actually generated in the arrangement area of the suction part BT-B20 of the suction plate BT-B10. For example, in the case shown in FIG. 3A, The sub suction path BT-G20 corresponding to the adsorption part BT-B20 in the protruding area on the left side of the illustration of BT-B10 (that is, the area other than the liquid crystal cell U) is blocked by the respective sub-valve BT-V20. This area does not generate adsorption force. In addition, for example, as shown in FIG. 3B, the sub-inhalation path BT corresponding to the adsorption portion BT-B20 in the protruding area (ie, the area other than the liquid crystal cell U) on the upper and lower sides of the adsorption plate BT-B10 in the illustration. -G20 is blocked by the respective sub-valve BT-V20, so no adsorption force is generated in this area.

The main valve BT-V10 and the sub valve BT-V20 can be opened and closed manually or under the control of a computer.

The horizontal moving means BT-HT moves the liquid crystal cell U in a horizontal direction. The horizontal movement means BT-HT includes, for example, a guide rail BT-HT10 provided in the horizontal direction and a sliding portion BT-HT20 that can slide along the guide rail BT-HT10.

The horizontal movement means BT-HT may have other known structures such as a robotic arm driven by an electric motor. The above-mentioned horizontal movement may be only movement along the liquid crystal cell transport direction, but may be in-plane movement combining movements along the liquid crystal cell transport direction and a direction perpendicular to the liquid crystal cell transport direction as necessary.

The up and down moving means BT-ST moves the suction plate BT-B10 in the up and down direction. The up-and-down moving means BT-ST includes, for example, a guide sleeve BT-ST10 provided in the up-down direction and a slide bar BT-ST20 that can slide along the guide sleeve BT-ST10.

In addition, similar to the horizontal moving means BT-HT, the vertical moving means BT-ST may have other conventional structures. Means of moving up and down BT-ST is connected with BT-HT, which is a horizontal moving means, and works together to make the adsorption plate BT-B10 move in space.

As long as the movement of the suction plate BT-B10 can be smoothly performed, the coupling relationship between the suction plate BT-B10, the horizontal movement means BT-HT, and the vertical movement means BT-ST is not particularly limited. As an example, in FIG. 2, the sliding part BT-HT20 of the horizontal moving means BT-HT is connected to the guide sleeve BT-ST10 of the vertical moving means BT-ST, and the sliding rod BT-ST20 of the vertical moving means BT-ST is connected to the suction Board BT-B10 connection.

In addition, in order to control the distance that the suction plate BT-B10 moves up and down, the liquid crystal cell suction moving device BT preferably has a height sensor (not shown) that detects the height of the suction plate BT-B10 relative to the liquid crystal cell transport path B.

In addition, the optical film bonding production line includes a liquid crystal cell position sensor BP that detects whether or not the liquid crystal cell U has reached a predetermined position on the liquid crystal cell transport path B where suction should be performed. As described above, the predetermined position detected by the liquid crystal cell position sensor BP is set so that the side on the downstream side in the conveying direction of the liquid crystal cell U is more downstream than the side on the downstream side in the conveying direction of the adsorption plate BT-B10. Outstanding position.

Hereinafter, a suction movement operation performed by the liquid crystal cell suction movement device BT according to the first embodiment will be described with reference to FIGS. 4A to 4F.

As shown in FIG. 4A, the liquid crystal cell U is transported to a predetermined position in front of the optical film bonding portion in the liquid crystal cell transport path B. If the liquid crystal cell position sensor BP detects that the liquid crystal cell U is transported to a predetermined position, the conveying roller R at the predetermined position stops rotating, so that the liquid crystal cell U stops at The prescribed position. In addition, the liquid crystal cell position sensor BP sends the detection signal to a control unit of the optical film bonding production line. At this time, the two bonding rollers Ru and Rd are in a separated state.

Next, as shown in FIG. 4B, the up-and-down moving mechanism BT-ST is driven to move the adsorption plate BT-B10 downward until the adsorption portion BT-B20 contacts the upper surface of the liquid crystal cell U. Before or during the descent, the horizontal moving means BT-HT can appropriately adjust the horizontal position of the adsorption plate BT-B10 as needed. Then, by opening the main valve BT-V10 and selectively opening the sub-valve BT-V20, an adsorption force is generated at the adsorption portion BT-B20 that is in contact with the upper surface of the liquid crystal cell U, and the liquid crystal cell U is adsorbed.

In accordance with the above-mentioned operation of the liquid crystal cell suction moving device BT, the optical film F of the optical film conveying path is peeled by the peeling means SP, and then one end of the carrier film H is stretched between the two bonding rollers Ru and Rd, waiting for bonding. At this time, the two bonding rollers Ru and Rd are still in a separated state.

Next, as shown in FIG. 4C, the adsorption plate BT-B10 is moved by the horizontal movement means BT-HT, so that the liquid crystal cell U adsorbed by the adsorption plate BT-B10 is moved, and the front end of the liquid crystal cell U is aligned to be positioned at two positions. The starting position of the laminating industry between the rollers Ru and Rd. At this time, the two bonding rollers Ru and Rd are still in a separated state. Since the liquid crystal cell U is moved by the liquid crystal cell adsorption moving device BT, the alignment accuracy of the liquid crystal cell U can be greatly improved compared with the conveyance using the rotation of the conveying roller R of the liquid crystal cell conveying path B.

Next, as shown in FIG. 4D, if the optical film bonding portion passes The sensor shown in the figure detects that the front end of the liquid crystal cell U is aligned with the start position of the bonding industry, and the two bonding rollers Ru and Rd are close to each other. The front end of the liquid crystal cell U is combined with the peeling means SP shown in FIG. 4B. One end of the protruding optical film F is sandwiched together. Thereby, the tip of the optical film F is bonded to the tip of the lower surface of the liquid crystal cell U.

Next, as shown in FIG. 4E, the main valve BT-V10 is closed, and the adsorption of the adsorption portion BT-B20 is released. Then, the up-and-down moving means BT-ST is driven to raise the suction plate BT-B10 and move away from the upper surface of the liquid crystal cell U.

Next, as shown in FIG. 4F, the horizontal moving means BT-HT is driven to move the adsorption plate BT-B10 backward to the starting position shown in FIG. 4A. At the same time, the two laminating rollers Ru and Rd are rotated, and while the liquid crystal cell U is conveyed to the downstream side, the optical film F having one end attached to the front end of the liquid crystal cell U is continuously attached to the lower surface of the liquid crystal cell U. When the rear end of the liquid crystal cell U passes between the two bonding rollers Ru and Rd, the bonding of the optical film F is completed. Then, the two bonding rollers Ru and Rd are separated again.

<Second Embodiment>

The liquid crystal cell adsorption moving device according to the first embodiment of the present invention has been described above. Hereinafter, a liquid crystal cell adsorption moving device according to a second embodiment of the present invention will be described with reference to FIGS. 5A and 5B.

In the liquid crystal cell adsorption and moving device BT of the second embodiment, the vacuum pump and the suction path are the same as those of the first embodiment. In addition to being located below the liquid crystal cell transport path B, the horizontal moving means The respective structures of the vertical movement means are the same as those of the first embodiment. Therefore, redundant descriptions of these structures are omitted.

As shown in FIGS. 5A and 5B, compared with the first embodiment, the liquid crystal cell adsorption moving device BT of the second embodiment is located below the liquid crystal cell transport path B, the adsorption member supports the liquid crystal cell U upward from below, and the optical film F is It is attached to the upper surface of the liquid crystal cell U.

In order to achieve this action, as shown in FIGS. 5C and 5D, the adsorption member of this embodiment is not an adsorption plate, but an adsorption frame BT-H10 composed of a plurality of adsorption arms BT-H20.

Specifically, the suction arm BT-H20 is arranged in a crosswise direction along the liquid crystal cell conveying direction and a direction perpendicular to the liquid crystal cell conveying direction, and at least one of the suction arms along the liquid crystal cell conveying direction is adsorbed in a direction perpendicular to the liquid crystal cell conveying direction. A plurality of arms are provided according to the shape and size of the liquid crystal cell. The shape of the envelope of the suction frame BT-H10 in the horizontal plane becomes a "convex" shape. The adsorption unit BT-H30 is arranged on the upper surface of the adsorption arm BT-H20 with the adsorption arm BT-H20 facing upward, and faces the liquid crystal cell U on the liquid crystal cell transportation path B. It is only necessary that the adsorption portion BT-H30 is arranged in a "convex" shape in a horizontal plane, but it is preferable that the adsorption portion BT-H30 is uniformly arranged on the adsorption arm BT-H20.

In addition, in order not to damage the surface of the liquid crystal cell U, the suction part BT-H30 is preferably a nozzle made of an elastic material such as rubber.

As shown in FIGS. 5C and 5D, the conveying roller of the liquid crystal cell conveying path B is in the liquid crystal cell conveying direction and a direction perpendicular to the liquid crystal cell conveying direction. There is a gap between the directions. With the up-and-down moving mechanism BT-ST, the suction arm BT-H20 of the suction frame BT-H10 extending in the liquid crystal cell conveying direction and a direction perpendicular to the liquid crystal cell conveying direction can smoothly pass through the gap, and thus the suction frame BT -H10 can move from below the liquid crystal cell transport path B to above the liquid crystal cell transport path B. That is, the state shown in FIG. 5A is changed to the state shown in FIG. 5B.

In addition, the suction frame BT-H10 in the state shown in FIG. 5B can move in the liquid crystal cell conveying direction and a direction perpendicular to the liquid crystal cell conveying direction along the gap between the conveying rollers shown in FIG. 5D. It is preferable that the conveying roller has a large gap in the center of the liquid crystal cell conveying path B and the liquid crystal cell conveying direction, and the up-and-down moving means supporting the suction frame BT-H10 can move in the liquid crystal cell conveying direction along the gap.

Hereinafter, a suction movement operation performed by the liquid crystal cell suction movement device BT of the second embodiment will be described with reference to FIGS. 6A to 6F.

As shown in FIG. 6A, the liquid crystal cell U is transported on the liquid crystal cell transport path B to a predetermined position in front of the optical film bonding section. If the liquid crystal cell position sensor BP detects that the liquid crystal cell U is transported to a predetermined position, the conveyance roller at the predetermined position stops rotating, so that the liquid crystal cell U stops at the predetermined position. In addition, for example, as shown in FIGS. 5C and 5D, the predetermined position detected by the liquid crystal cell position sensor BP is set to a “convex” shape on the downstream side of the liquid crystal cell U in the conveying direction than the suction frame BT-H10. The bottom edge is projected further toward the downstream side in the conveying direction.

In addition, the liquid crystal cell position sensor BP sends the detection signal to a control unit of the optical film bonding production line. At this time, two laminating rollers Ru and Rd are separated.

Next, as shown in FIG. 6B, the up-and-down moving means BT-ST is driven to move the suction frame BT-H10 upward until the liquid crystal unit U is supported by the suction frame BT-H10 and moves away from the conveying roller R a certain distance upward. Thereby, the suction part BT-H30 is in contact with the lower surface of the liquid crystal cell U. Before or during the ascent, the horizontal moving means BT-HT can appropriately adjust the position of the adsorption frame BT-H10 in the horizontal plane as required.

Then, by opening the main valve BT-V10 and selectively opening the sub-valve BT-V20, an adsorption force is generated in the adsorption portion BT-H30 that is in contact with the lower surface of the liquid crystal cell U, and the liquid crystal cell U is adsorbed.

In accordance with the above-mentioned operation of the liquid crystal cell suction moving device BT, the optical film F of the optical film conveying path is peeled by the peeling means SP, and then one end of the carrier film H is stretched between the two bonding rollers Ru and Rd, waiting for bonding. At this time, the two bonding rollers Ru and Rd are still in a separated state. In addition, since the suction frame BT-H10 in this embodiment supports the liquid crystal cell U from below, the peeling means SP is located above the liquid crystal cell transport path B.

Next, as shown in FIG. 6C, the horizontally moving means BT-HT moves the adsorption frame BT-H10 along the gap between the conveying rollers R, and by moving the adsorption frame BT-H10, the liquid crystal adsorbed by the adsorption frame BT-H10 is moved. Unit U adjusts the front end of the unit U to the starting position of the bonding industry between the two bonding rollers Ru and Rd. At this time, the two bonding rollers Ru and Rd are still in a separated state. Since the liquid crystal cell U is moved by the liquid crystal cell adsorption moving device BT, the liquid crystal cell U is rotated with the rotation of the conveying roller R of the liquid crystal cell conveying path B. Compared with the horizontal transport, the alignment accuracy of the liquid crystal cell U is greatly improved.

Next, as shown in FIG. 6D, if the optical film bonding section detects that the front end of the liquid crystal cell U has been aligned to the starting position of the bonding industry by using a sensor (not shown), the two bonding rollers Ru and Rd are close to each other. The front end of the liquid crystal cell U is clamped together with one end of the optical film F protruding from the peeling means SP as shown in FIG. 6B. Thereby, the tip of the optical film F is bonded to the tip of the upper surface of the liquid crystal cell U.

Next, as shown in FIG. 6E, the main valve BT-V10 is closed, and the adsorption of the adsorption section BT-H30 is released. Then, the up-and-down moving means BT-ST is driven to lower the suction frame BT-H10, and the liquid crystal cell U is placed on the liquid crystal cell conveying path B, and moves below the liquid crystal cell conveying path B, and leaves from the lower surface of the liquid crystal cell U.

Next, as shown in FIG. 6F, the horizontal moving means BT-HT is driven to move the suction frame BT-H10 backward to the starting position shown in FIG. 6A. At the same time, the two bonding rollers Ru and Rd are rotated, and the liquid crystal cell U is conveyed to the downstream side, while the optical film F having one end bonded to the front end of the liquid crystal cell U is continuously bonded to the upper surface of the liquid crystal cell U. When the rear end of the liquid crystal cell U passes between the two bonding rollers Ru and Rd, the bonding of the optical film F ends. Then, the two bonding rollers Ru and Rd are separated again.

In addition, the present invention may be modified in other ways. For example, the adsorption rack of the second embodiment can be used for the first embodiment. That is, the suction frame sucks and transports the liquid crystal cell U from above. At this time, the adsorption portion is disposed on the lower surface of the adsorption frame, and the optical film F is bonded to the lower surface of the liquid crystal cell.

In addition, the optical film bonding production line has a control section which controls Based on the detection signal from the liquid crystal cell position sensor, the manufacturing unit automatically controls the operation of the liquid crystal cell adsorption moving device, the rotation of the conveying roller, and the operation of the optical film bonding unit, and automatically performs the optical film bonding step.

In addition, in the optical film bonding production line, if only the optical film F is bonded on one side, only one liquid crystal cell adsorption moving device can be provided. If the optical film F is bonded on both sides, two liquid crystal cell adsorption can be provided. Mobile device. When two liquid crystal cell adsorption moving devices are provided, the aforementioned different liquid crystal cell adsorption moving devices can be combined as required.

For example, the two liquid crystal cell adsorption moving devices are both located above the liquid crystal cell transport path B. Correspondingly, the two optical film bonding portions are bonded to the optical film F on the lower surface of the liquid crystal cell U. At this time, as described above, a turning means (not shown) for turning the upper and lower surfaces of the liquid crystal cell is provided between the two optical film bonding portions. As long as the upper and lower surfaces of the liquid crystal cell can be reversed, the flipping means can adopt any conventional structure.

In addition, for example, the two liquid crystal cell adsorption moving devices are located below the liquid crystal cell transport path B, and correspondingly, the two optical film bonding portions are bonded to the upper surface of the liquid crystal cell U with the optical film F. At this time, as described above, a turning means (not shown) for turning the upper and lower surfaces of the liquid crystal cell is provided between the two optical film bonding portions. As long as the upper and lower surfaces of the liquid crystal cell can be reversed, the flipping means can adopt any conventional structure.

Preferably, the optical film bonding production line has a first liquid crystal cell adsorption moving device BT1 and a corresponding first optical film bonding portion CF3, and a second liquid crystal cell adsorption moving device BT2 and a corresponding second optical film bonding.合 部 DF3. The first liquid crystal cell attracts the mobile device BT1 from The upper surface of the liquid crystal cell U is adsorbed. In response to this, the first optical film bonding portion CF3 adheres the optical film F to the lower surface of the liquid crystal cell U. In addition, the second liquid crystal cell suction moving device BT2 suctions from below the liquid crystal cell U, and accordingly, the second optical film bonding portion DF3 sticks the optical film F to the upper surface of the liquid crystal cell U. Of course, in the conveying direction of the liquid crystal cell U, the order of bonding the optical film F to the upper and lower surfaces is not limited.

Thus, after the optical film F is bonded on one surface of the liquid crystal cell U, the optical film F can be bonded on both the upper and lower surfaces of the liquid crystal cell without turning the liquid crystal cell U upside down.

BT-B10‧‧‧Adsorption Plate

BT-B20‧‧‧Adsorption Department

U (TD) ‧‧‧LCD cell TD transport method

Claims (19)

An adsorption member for adsorbing a liquid crystal cell is characterized in that a plurality of adsorption parts are provided in contact with the surface of the liquid crystal cell, and the arrangement area of the adsorption parts in a horizontal plane is "convex". The adsorption member according to item 1 of the patent application range, wherein the adsorption section is made of an elastic material. According to the adsorption member described in the first or second patent application scope, the adsorption member is an adsorption plate having a “convex” shape in a horizontal plane, and the adsorption portion is disposed on a lower surface of the adsorption plate. According to the adsorption member described in item 3 of the patent application scope, the adsorption section is uniformly arranged on a lower surface of the adsorption plate. The suction member according to item 1 or 2 of the patent application scope, wherein the suction member is composed of at least one suction arm extending along a liquid crystal cell transport direction and a plurality of suction arms extending in a direction perpendicular to the liquid crystal cell transport direction. The shape of the envelope of the adsorption frame in the horizontal plane is a "convex" shape, and the adsorption part is arranged on the lower surface of the adsorption arm. The adsorption member according to item 5 of the scope of patent application, wherein the adsorption unit is uniformly arranged on the adsorption arm. The suction member according to item 1 or 2 of the scope of the patent application, wherein the suction member is formed of at least one extending in a liquid crystal cell transport direction. An adsorption arm and an adsorption frame composed of a plurality of adsorption arms extending in a direction perpendicular to the liquid crystal cell transport direction. The shape of the envelope of the adsorption frame in the horizontal plane is a "convex" shape, and the adsorption part is arranged on the adsorption arm. Top surface. The adsorption member according to item 7 of the scope of patent application, wherein the adsorption unit is uniformly arranged on the adsorption arm. The invention relates to a liquid crystal cell adsorption moving device, which can move the liquid crystal cell in a state capable of adsorbing the liquid crystal cell. The liquid crystal cell adsorption moving device is characterized in that the liquid crystal cell adsorption moving device is located above the liquid crystal cell conveying path, and includes: any one of patent application scopes 1 to 6. The adsorption member described, wherein the adsorption unit faces the liquid crystal cell transport path opposite to the liquid crystal cell, and a “convex” mirror image symmetry line is parallel to the liquid crystal cell transport direction; a vacuum pump generates a negative pressure for adsorbing the liquid crystal cell; an air intake path passes the above The vacuum pump is in communication with the adsorption unit; the upward and downward movement means moves the adsorption member up and down; and the horizontal movement means moves the adsorption member horizontally. According to the liquid crystal cell adsorption moving device according to item 9 of the scope of the patent application, the adsorption member is arranged so that the bottom edge of the "convex" shape is located on the downstream side of the liquid crystal cell transportation path. For example, the liquid crystal cell adsorption moving device described in item 9 or 10 of the scope of the patent application, wherein the above-mentioned suction path is composed of a main suction path and a plurality of sub-intake paths, One end of the main suction path is in communication with the vacuum pump, and the other end of the main suction path is branched into the plurality of sub-intake paths, and each sub-intake path is in communication with at least one adsorption section. The suction passages are provided with valves which can be opened and closed independently. A liquid crystal cell adsorption moving device is capable of moving in a state where the liquid crystal cell is adsorbed, and is characterized in that the liquid crystal cell adsorption moving device is located below the liquid crystal cell conveying path and includes: the adsorption described in item 7 or item 8 of the scope of patent application Component, the adsorption unit facing the liquid crystal cell conveying path is opposite to the liquid crystal cell, and a “convex” mirror image symmetrical line is parallel to the liquid crystal cell conveying direction; a vacuum pump generates a negative pressure for adsorbing the liquid crystal cell; The suction part communicates with each other. The means for moving up and down moves the suction member up and down through the gap between the conveying rollers of the liquid crystal cell conveying path. mobile. According to the liquid crystal cell adsorption and moving device according to Item 12 of the scope of application for patent, the adsorption member is arranged so that the bottom edge of the "convex" shape is located on the downstream side of the liquid crystal cell transportation path. For example, the liquid crystal cell adsorption and moving device according to item 12 or item 13 of the patent application scope, wherein the above-mentioned suction path is composed of a main suction path and a plurality of A stripe suction path is formed, one end of the main suction path is in communication with the vacuum pump, and the other end of the main suction path is branched into the plurality of sub suction paths, and each sub suction path is in communication with at least one adsorption section. The inhalation passage and each inhalation passage are respectively provided with valves which can be opened and closed independently. An optical film bonding production line, comprising: a liquid crystal cell conveying path provided with a plurality of conveying rollers to convey the liquid crystal cell; an optical film bonding device for bonding an optical film on the surface of the liquid crystal cell; and position sensing of the liquid crystal cell The device detects whether the liquid crystal cell has reached a predetermined position of the liquid crystal cell transportation path; the liquid crystal cell suction moving device described in any one of items 9 to 14 of the scope of application for a patent, absorbs and moves the liquid crystal cell that reaches the predetermined position of the liquid crystal cell transportation path Adjusting to the start position of the operation of the optical film bonding device; the control unit controls the operation of the liquid crystal cell to adsorb the mobile device, the rotation of the conveying roller, and the operation of the optical film bonding device based on the detection signal from the liquid crystal cell position sensor. The optical film bonding step is performed automatically. For example, the optical film bonding production line described in the patent application No. 15 includes a liquid crystal cell adsorption moving device and an optical film bonding device corresponding thereto, and another liquid crystal cell adsorption moving device and another optical device corresponding thereto. Film bonding device, the above-mentioned liquid crystal cell adsorption moving device is the first The liquid crystal cell adsorption and moving device according to any one of items 9 to 11, the one optical film bonding device attaches an optical film to the lower surface of the liquid crystal cell, and the other liquid crystal cell adsorption and moving device is Patent Application No. 12 to The liquid crystal cell adsorption moving device according to any one of 14 items, wherein the other optical film bonding device attaches an optical film to an upper surface of the liquid crystal cell. For example, the optical film bonding production line described in item 15 of the patent application scope includes two liquid crystal cell adsorption moving devices and two corresponding optical film bonding devices respectively. The above liquid crystal cell adsorption moving device is the ninth in the patent application scope. The liquid crystal cell adsorption moving device according to any one of the items ~ 11, the optical film bonding device attaches an optical film to a lower surface of the liquid crystal cell, and the optical film bonding production line is further provided between the two optical film bonding devices. Equipped with a reversing means for reversing the liquid crystal cell. For example, the optical film bonding production line described in item 15 of the patent application scope includes two liquid crystal cell adsorption moving devices and two corresponding optical film bonding devices respectively. The above liquid crystal cell adsorption moving device is the 12th in the patent application scope. The liquid crystal cell adsorption moving device according to any one of 14 to 14, the optical film bonding device attaches an optical film to the upper surface of the liquid crystal cell, and the optical film bonding production line is further provided between the two optical film bonding devices. Equipped with a reversing means for reversing the liquid crystal cell. For example, the optical film bonding production line described in any one of claims 15 to 18 of the scope of patent application, wherein the liquid crystal cell position sensor The predetermined position is provided at a position where the side on the downstream side in the transport direction of the liquid crystal cell protrudes to the side on the downstream side in the transport direction than the side on the downstream side in the transport direction of the suction member.