TWI419852B - Separating device and separation method for plane display body substrate - Google Patents

Description

Separating device and separation method for planar display body mother substrate

The present invention relates to a separating apparatus and a separating method for separating a panel piece of a product size from a plane display panel that has been scribed (and broken).

Fig. 1 shows a flat display panel (mother substrate) including a liquid crystal display panel, a PDP panel (Plasma Display Panel), an LCOS (Liquid Crystal On Silicon) panel, etc., to the size of a product. The process of segmentation of the panel. As shown in the top view and the side view of FIGS. 1(A) and (B), in the flat display panel W, the upper and lower glass sheets are joined to each other by the seal ring Z disposed between the upper and lower glass sheets, and simultaneously from the injection port. The PI injects liquid crystal into the gap surrounded by the seal ring Z. In this manner, six panel sheets w are formed on the flat display panel W. In order to separate the six panel sheets w from the flat display panel W, a scribe line is applied to the periphery of the panel sheet w by a scribing device on the surface of the upper and lower glass sheets.

(C) in Fig. 1 shows a case where the broken portion has been broken by the breaking device. Thereafter, as shown in (D), it is transferred to the separation device, and the unnecessary members Q1 to Q3 are removed on the platform, thereby finally obtaining six panel sheets w. The protruding portion U on the lower side glass plate (TFT (Thin-film Transistor) substrate) is a portion for forming a terminal for the electrode, and the electrode is used for a circuit including a TFT. The upper glass plate is a CF substrate containing CF (Color Filter).

As can be seen from (D) of Fig. 1, the unnecessary members Q1 and Q3 at the edge portion can be easily removed by applying an impact force from above by a robot or the like. However, in the case where the member Q2 is removed therefrom, since the terminal U of the lower glass plate (TFT substrate) protrudes, it cannot be removed by the same method, and the removal is troublesome.

Further, when the flat display panel is reversed, the unnecessary member can be removed as appropriate. However, since the CF substrate on the display surface side is on the lower side, there is a problem that scratches are left on the CF substrate, and when the transfer is performed in the next step, the panel must be reversed, thereby increasing the number of steps. .

Japanese Laid-Open Patent Publication No. Hei 11-116260 discloses a separating apparatus which forms a liquid crystal having a deep crack (line) in the thickness direction of the sheet glass by irradiation of a high-permeability cutter wheel or laser light or the like. The mother glass substrate of the panel is placed on a vacuum-adsorbable sheet material removal platform (for example, the material removal portion Z2 of FIG. 15), and the panel piece of the product size is formed along the crack by the transport robot (reverse robot 45). The mother substrate of the liquid crystal panel is separated. In the separating apparatus, a plurality of panel sheets are sequentially transported from the mother substrate placed on the material removing platform Z2 by the transport robot to the next step, and the panel sheets are sequentially separated from each other. However, after all the panel sheets are transported, a plurality of unnecessary end materials remain on the material removal platform, and each time the new mother substrate is processed, it is necessary to carry out the end materials together with the fine glass shavings. The removal of material from the platform completely removes the production efficiency.

Moreover, the fracture platform is formed corresponding to a mother glass substrate of a specific size, so if the size of the mother glass substrate is changed, it may be required to redesign or modify the fracture platform, thereby hindering the improvement of production efficiency.

Further, in the case where the number of the product panels of each of the mother glass substrates is changed, it is necessary to change the installation position or the operation program of the transport robot or the like, which hinders the improvement of the production efficiency.

An object of the present invention is to provide a separating apparatus which can easily remove a member without leaving a scratch on the panel sheet.

Further, an object of the present invention is to easily make the separation step efficient in the case where the number of product panels acquired per sheet of the flat display panel is changed or the size of the panel panel W is changed.

The separating device for the flat display mother substrate of the present invention is a separating device for separating the respective panel sheets from a flat display body panel which is formed by a scribe line which is separated into a panel piece of a product size. The separating device comprises a plurality of platforms and a moving device, wherein the plurality of platforms attract and fix one of the flat display panels, and the moving device causes one of the plurality of platforms to face the other platforms on the flat display panel The relative movement of at least one axial direction on the main surface. Here, in a state in which a panel of the flat display panel is fixed on the plurality of platforms, the moving member can be moved in the at least one axial direction to remove the unnecessary member between the plurality of adjacent panel sheets. .

Preferably, the separating apparatus further includes: a guide shaft extending in one axial direction on a main surface of the flat display panel; and a support body engaged with the guide shaft and supporting at least a part of the plurality of platforms The movable body is movable along the axis of the guide shaft; and the conveying device transports the support body along the axis of the guide shaft.

Preferably, in the separating device, at least a part of the plurality of platforms are respectively composed of a platform base and a suction fixing platform, and the suction fixing platform is placed on the platform base to attract and fix the flat display body. In the panel, the mobile device is configured by at least one of a first device and a second device, wherein the first device relatively moves one of the plurality of platform bases to the other platform base, and the second device One of the plurality of attraction fixing platforms described above relatively moves to the other attraction fixing platforms. Here, in the state in which the panel of the flat display panel is attracted and fixed to the plurality of suction fixing platforms, the movement of the first device or the second device can be performed, and the plurality of adjacent panel sheets can be adjacent to each other. There is no need for component removal.

Preferably, the separation device further includes: a guide shaft extending in a one-axis direction on a main surface of the flat display panel; the support body is engaged with the guide shaft, and the plurality of platforms are At least a portion of the support is movable along an axis of the guide shaft, and a conveying device transports the support along an axis of the guide shaft.

In the above separating apparatus, preferably, at least a part of the plurality of stages has a coupling mechanism that couples adjacent platforms to each other.

In the above separating apparatus, preferably, the plurality of stages are two-dimensionally arranged.

The separation method of the present invention is a method of separating a flat display panel having a scribe line separated into a panel piece of a product size into the above-mentioned respective panel sheets. In the separating method, the plurality of panel sheets formed on the flat display panel are attracted and fixed to a plurality of platforms, and then one of the plurality of platforms is aligned with the other platforms on the flat panel At least one axial direction of the main surface moves. Thereby, the unnecessary member between the plurality of panel sheets is cut off by the interval between the plurality of panel sheets adjacent in the direction being enlarged.

In the above separation method, preferably, the plurality of stages are moved to a position at which the panel piece of the flat display panel can be attracted and fixed according to the size of the flat display panel and/or the number of panel acquisitions per sheet.

In the above-described separating apparatus, it is preferable that each of the panel sheets of the flat display panel is composed of a TFT substrate and a CF substrate stacked thereon, and the TFT substrate is positioned on the lower side and the CF substrate is placed on the upper side to perform separation. .

[Effects of the Invention]

In the present invention, the movable platform is moved relative to the fixed platform in a state in which the flat display panel is fixed on the platform, so that the platforms are separated from each other, and therefore, the components between the panel are automatically replaced. The ground is cut off and falls due to its own weight, so only panel pieces of the product size are obtained on each platform. In this manner, the separation operation can be performed in a state where the CF substrate on the display side is positioned on the upper side (that is, no scratch is left on the CF substrate).

In the present invention, in the case where the size of the mother substrate of the flat display panel as the separation target (including the size of the generation display) or the number of panel acquisitions per sheet is changed in the separation step, the plan change can be automated and High speed.

Embodiments of the invention will be described below with reference to the drawings. In the drawings, the same components are given the same symbol.

First, the object of processing of the separation apparatus of the present invention will be described. A plurality of panel sheets having a product size are formed on a flat display panel (mother substrate) including a liquid crystal display panel, a PDP panel, and an LCOS panel. As shown in the top view and the side view of FIGS. 1(A) and (B), the upper and lower glass plates are joined to each other by the seal ring Z disposed between the upper and lower glass plates on the flat display body panel W, and from the injection port. The PI injects liquid crystal into a gap surrounded by the seal ring Z. In the example of the flat display body panel W shown in the drawing, six panel sheets w are formed. The panel piece w has a projection in this example. In order to separate the six panel sheets w from the flat display panel W, a scribe line is applied to the surface of the upper and lower glass sheets by the scribing device around the panel sheet w. Here, in the step of dividing the mother substrate for the flat display panel, a high-permeability wheel edge leading edge capable of forming a vertical crack to a depth of 80% or more of the thickness of the substrate is used (hereinafter only In the case of the blade leading edge, a breaking step using a simplified breaking device is employed, and in the case where the thickness of the mother substrate is the thickness of the previous mainstream, that is, 0.7 to 0.4 mm or less, even if the breaking step is not employed, It is also possible to form a vertical crack that reaches the back side of the substrate by the scribing step of the high permeability edge. In this case, it is called "full body cut", and there is no need for a large-scale breaking step in which the mother substrate is reversed and then broken along the scribe line. Moreover, the irradiation of the laser can form a vertical crack of the same "integral cut" as described above. In the following embodiments, the mother substrate for the flat display body panel which is integrally cut as described above will be described as a separate object.

[First Embodiment]

Fig. 2 is a front view of the separating apparatus according to the first embodiment of the present invention. Each platform such as (T1-T1') (T2a-T2a') (T2b-T2b') (T3-T3') is the platform bases T1', T2a', T2b', T3' and the upper side from the lower side. The two-layer structure composed of the fixed platforms T1, T2a, T2b, and T3 is adsorbed. The upper adsorption fixed platforms T1, T2a, T2b, and T3 are disposed so as to be movable in the left-right direction (the X-axis direction) with respect to the lower platform bases T1', T2a', T2b', and T3', respectively. Further, the adsorption fixing platform on the upper side is provided with an adsorption fixing device for suctioning and fixing the flat display panel W. The adsorption fixed platforms T1 to T3 can perform the adsorption operation on the platform where the adsorption is required.

In the state in which the three platforms shown in FIG. 2 are arranged in a row, each of the platforms (T1-T1') and (T3-T3') is supported by the two support plates 11a and 11b arranged in the vertical direction. A cylinder 21 is fixed to a specific portion of the support plate 11a of the platform bases T1' and T3' on both sides of the support, and the cylinder shaft 22 of the cylinder 21 is " In the shape of the word, the other end is coupled to the side edges of the adsorption fixing platforms T1 and T3. With this mechanism, the adsorption fixed platforms T1 and T3 are driven by the cylinder 21, respectively, to the left side (arrow a direction) and the right side (arrow) The b-direction) is slidably moved. The adsorption fixed platforms T2a and T2b are combined by a bonding mechanism 30 that is coupled or uncoupled.

The two guide shafts 13 in the horizontal direction are disposed between the two side plates 14, and the support plates 11 and 11a supporting the platform bases T1', T2a', T2b', and T3' are supported by the horizontal two guide shafts 13 as It can be moved along the guide shaft 13. The support plates 11 and 11a are attached to the guide shaft 13 by the bushing 12, and are fixed by the lock pin P disposed on the bushing 12. Further, a transport lock mechanism 19 can be further disposed on the mounting base, and the transport lock mechanism 19 can move each platform to any position along the guide shaft 13 and lock it. In this case, since the transport lock mechanism 19 has the lock mechanism, the lock pin P disposed above the bushing 12 can be omitted. Further, pedestals 23 are fixed to the lower ends of the side plates 14, and the pedestals 23 are movable along the guide rails 24 in a direction perpendicular to the paper surface.

In the separating apparatus shown in Fig. 3, the unit U2 which is the same as the unit U1 which consists of the three structures consisting of the above structures is the unit U2 similar. A cylinder 25 is attached to a specific portion of one of the side plates 14 of the unit U2, and the other end of the cylinder shaft 26 of the cylinder 25 is coupled to the side plate 14 on the unit U1 side. (In the case where only the unit U1 is used, the cylinder 25 is not required.) For example, when the unit U2 is semi-fixed and the cylinder 25 is actuated, the unit U1 moves in the direction of the arrow c (Y-axis direction) along the guide rail 24.

Fig. 3 shows a case where the number of platforms is six, and Fig. 4 shows a front view when the number of platforms is four (the two platforms on the inside of the paper are omitted). In this case, in FIG. 2, the two adsorption fixed platforms T2a and T2b constituting one platform are separated, and are coupled to the adsorption fixed platforms T1 and T3, respectively, by the coupling mechanism 30. Therefore, when the adsorption fixed platform T1 moves, it moves integrally with the adsorption fixed platform T2a, and moves integrally with the adsorption fixed platform T2b when the adsorption fixed platform T3 moves.

The separation operation when the platform is six will be described using FIG. 5. Here, depending on the size of the flat display panel and/or the number of panels acquired per sheet, the plurality of platforms are moved to a position that can attract the panel of the fixed flat display panel. In this example, the number of product panels acquired for each of the flat display body panels W is changed from 4 sheets to 6 sheets, and the following description will be made. In addition, the size of the flat display panel W does not change.

The operation of changing the arrangement of the platform from the four arrangements shown in FIG. 4 to the arrangement of the six shown in FIG. 2 and FIG. 3 will be described. First, the transport locking mechanism 19 supporting the support plates 11 of the platform bases T2a' and T2b' at the lower portion shown in FIG. 4 is driven to move the adsorption fixed platforms T2a and T2b along the horizontal axis 13, as shown in FIG. The adsorption fixed platforms T2a and T2b are combined by the bonding mechanism 30. Next, the cylinder 25 shown in Fig. 3 is driven, and the interval between the unit U1 and the unit U2 is adjusted through the cylinder shaft 26. Thereby, the position of each platform is determined such that each of the panel sheets w1 to w6 is located on each platform. Next, as shown in Fig. 5(a), the lined flat display body panel W (refer to Fig. 1) is placed on six platforms. Further, the flat display body panel W is attracted and fixed to each of the platforms. In this state, the flat display panel W is composed of a TFT substrate on the lower side and a CF substrate stacked thereon, and is in a state of being streaked as shown in FIG. A scribing line is formed on the upper side surface and the lower side surface.

Further, by the driving of the air cylinder 21 (Fig. 2), the adsorption fixing platforms T1 and T3 on both sides of the units U1 and U2 are moved in the directions of the arrow a and the arrow b (one axial direction on the main surface of the flat display panel). A few millimeters. Thereby, the outer panel pieces w1, w2, w5, and w6 move in the direction away from the two panel sheets w3 and w4 in the center, so that the unnecessary center removal material Q2 between the panel sheets is cut off from the panel sheet, and Falling down by its own weight.

Next, as shown in Fig. 5(b), by the driving of the cylinder 25 (Fig. 3), the unit U1 is moved by a few millimeters in the direction of the arrow c (the other axial direction on the main surface of the flat display panel). Thereby, the panel sheets w2, w4, and w6 move in the direction away from the panel sheets w1, w3, and w5, so that the unnecessary center removal material Q2' between the panel sheets is cut off from the panel sheet, and is due to its own weight. fall. According to this separation method, even if the panel piece has the protruding portion, the separation operation can be performed in a state where the CF substrate on the display side is placed on the upper side without scratching the CF substrate.

Although the excision of the excised material Q1 at the peripheral portion can be performed in the same manner as before, it is naturally removed and dropped due to the above-described action. The action in the case of four platforms is also the same as the above-described action, and only the panel w is reserved on each platform. After the attraction fixing operation of each platform is released, the panel sheets w are transported to a stock or the like by another conveyor or the like.

In this way, in the case where the number of product panels acquired in each of the flat display body panels W is changed, the separation, combination and movement of the adsorption fixed platforms in the X-axis and Y-axis directions can be automated without manual operation, thereby enabling The positional change of each platform is performed at high speed and accurately.

Moreover, the platform is moved so that the relative distance between the panel sheets becomes large, whereby not only the separation of the panel sheets but also the end materials between the panel sheets can be removed.

In the present embodiment, in Fig. 3, the unit U2 is fixed and the unit U1 is moved in the direction of the arrow c. However, the unit U1 and the unit U2 may be moved in opposite directions to each other. Moreover, in the present embodiment, the number of platforms is six (by combining four), but it is also applicable to systems having more platforms or more units.

In the present embodiment, an example has been described in which the number of product panels acquired for each of the flat display panel W is changed from four to six without changing the size of the flat display panel W, but it is clear that even In the case where the size of the mother panel of the flat display panel W is changed, the movable range of the total length of the units U1 and U2 or the c direction (Y-axis direction) is set and the size of the apparatus is determined to similarly move the platforms. However, it can be easily arranged to cope with the above situation.

In the present embodiment, all of the platform pedestals are movable, but for example, only the platform pedestal T1' of the unit U1 and the unit U2 may be fixed, and the other platform pedestals may be movable.

In the present embodiment, the platform bases T2a' and T2b' of the unit U1 and the unit U2 may be coupled and separated in the X-axis direction, but may be coupled and separated in the Y-axis direction.

The guide shaft mechanism is provided with two horizontal shafts 13 which are disposed such that all the axes are located along one inclined surface as viewed in the axial direction, so that the member Q2 is not required to stay on the horizontal shaft 13 The guide chute 15 is guided. Further, an air outlet for blowing out air is provided at a position above the horizontal shaft 13, whereby the chute 15 can be guided more accurately.

[Second Embodiment]

A second embodiment of the present invention will be described with reference to Figs. 6 to 9 .

In the second embodiment, the difference from the first embodiment is that the transport locking mechanism 19 for moving the platforms along the horizontal axis 13 is omitted, and the adsorption fixing platforms T1 to T3 are omitted from the platform base T1'. The cylinder 21 moved on T3', and the adsorption fixed platforms T1 to T3 are integrated with the platform bases T1' to T3'. In the first embodiment, when the size of the mother substrate is changed or the size of the panel is changed, the arrangement position of each platform can be automatically changed. In the second embodiment, the worker must Manually change the position of each platform, but the device can be greatly simplified.

As shown in the perspective view of Fig. 6, the separating apparatus of the second embodiment is composed of, for example, six stages, and each of the stages is positioned corresponding to each of the panel sheets w of the flat display panel W placed on the platforms. In addition, the central platform is a combination of two platforms T2a and T2b having a narrow width. Each of the platforms is formed such that the panel fixing sheets T1 to T3 that are held by the panel sheets placed on the platform position and held on the respective platforms are integrated with the above-described platform bases T1' to T3' (not shown). The adsorption fixed platforms T1 to T3 can perform the adsorption operation on the platform where the adsorption is required.

Fig. 7 is a side view as seen from the direction of the arrow in Fig. 6. The unit 1 in the vicinity is shown in Fig. 7, but the unit behind it is also the same structure. The two bushings 12 disposed on the support plate 11 facing downward from the platform T1 (the same as the other platforms) are inserted through two horizontal guide shafts 13 through which the platform T can be locked by the lock pin P. Anywhere. The guide shaft 13 itself is fixed to the side plates 14 on both sides. A chute 15 is disposed under the platform for receiving the end material such as the cut piece.

Fig. 8 shows a case where four panel sheets w are obtained from the flat display panel W. In this case, as shown in FIG. 9 of the side view, the platforms T2a and T2b having a narrow width are divided and integrated with the adjacent platforms T1 and T3, respectively. Further, it can be seen from the side view of the side plate 14 shown at the left end that the positions of the two horizontal axes 13 are not only in the up and down direction but also in the left and right directions. When the mother substrate that is integrally cut in the scribing step is placed on each of the platforms, the end materials that are easily detached from the periphery of the mother substrate fall from the small platforms into the chute 15 due to their own weight.

Although the invention has been described by way of embodiments, the invention is not limited thereto. It should be understood by those skilled in the art that other embodiments or variations are possible.

W. . . Flat display body panel

Z. . . Seal ring

w, w1~w6. . . Panel

Q1～Q3, Q2'. . . No need for components

U. . . Protruding

PI. . . Note entry

T1', T2a', T2b', T3'. . . Platform base

T1, T2a, T2b, T3. . . Adsorption fixed platform

11, 11a, 11b. . . Support plate

12. . . bushing

13. . . Guide shaft

14. . . Side panel

15. . . Chute

19. . . Transport locking mechanism

21, 25. . . cylinder

twenty two. . . Cylinder shaft

twenty three. . . Pedestal

twenty four. . . guide

26. . . Cylinder shaft

30. . . Combined mechanism

P. . . Lock pin

U1, U2. . . unit

a, b, c. . . arrow

Fig. 1 is a view showing a process of dividing from a flat display panel to a panel of a product size.

Fig. 2 is a front view of the separating apparatus according to the first embodiment of the present invention.

Fig. 3 is a plan view showing a separating apparatus according to a first embodiment of the present invention.

Fig. 4 is a front view of the separating apparatus according to the first embodiment of the present invention.

Fig. 5 is a view showing a division operation in the first embodiment of the present invention.

Fig. 6 is a view showing a separating apparatus according to a second embodiment of the present invention and a flat display panel placed thereon.

Fig. 7 is a front view of the platform unit of the separating apparatus according to the second embodiment of the present invention.

Fig. 8 is a view showing a separating apparatus according to a second embodiment of the present invention and a flat display panel placed thereon.

Fig. 9 is a front view of the separating apparatus according to the second embodiment of the present invention.

11, 11a, 11b. . . Support plate

12. . . bushing

13. . . Guide shaft

14. . . Side panel

15. . . Chute

19. . . Transport locking mechanism

twenty one. . . cylinder

twenty two. . . Cylinder shaft

twenty three. . . Pedestal

twenty four. . . guide

30. . . Combined mechanism

a, b. . . arrow

P. . . Lock pin

T1, T2a, T2b, T3. . . Adsorption fixed platform

T1', T2a', T2b', T3'. . . Platform base

Claims (9)

The invention relates to a device for separating a mother-substrate substrate, which is formed by forming a body panel with a scribe line for separating a panel piece of a product size, and separating the panel sheets, wherein: a plurality of platforms and mobile devices are used. The plurality of platforms attract and fix one of the flat display panels, and the moving device relatively moves one of the plurality of platforms relative to the other platforms on at least one axial direction of the main surface of the flat display panel In a state in which a panel of the flat display panel is fixed on the plurality of platforms, the unnecessary components between the plurality of adjacent panel sheets can be cut off by the movement of the moving device in the at least one axial direction. A separating device for a flat display mother-and-body board according to the first aspect of the invention, further comprising: a guide shaft extending in a one-axis direction on a main surface of the flat display body panel; and a support body engaged with the guide shaft; And supporting at least a portion of the plurality of platforms to be movable along an axis of the guide shaft; and conveying means for transporting the support along an axis of the guide shaft. The apparatus for separating a flat display mother-mother substrate according to claim 1, wherein at least a part of the plurality of platforms is respectively composed of a platform base and a suction fixing platform, and the attraction fixing platform is placed on the platform base. And attracting and fixing the flat display panel, wherein the mobile device is composed of at least one of the first device and the second device, wherein the first device is configured to use one of the plurality of platform bases relative to the other Moving the platform base, the second device is configured to move one of the plurality of attraction fixing platforms relative to the other of the attraction fixing platforms; and the plurality of suction fixing platforms are attracted and fixed to the panel The movement by the first device or the second device can remove the unnecessary members between the plurality of adjacent panel sheets. A separating device for a flat display mother-and-body board according to claim 3, further comprising: a guide shaft extending in a one-axis direction on a main surface of the flat display body panel; and a support body engaged with the guide shaft; And supporting at least a portion of the plurality of platforms to be movable along an axis of the guide shaft; and conveying means for transporting the support along an axis of the guide shaft. The apparatus for separating a flat display mother-matrix substrate according to any one of claims 1 to 4, wherein at least a part of the plurality of platforms has a coupling mechanism that couples adjacent platforms to each other. The apparatus for separating a flat display mother-matrix substrate according to any one of claims 1 to 4, wherein the plurality of platforms are two-dimensionally arranged. A method for separating a flat display body substrate is to form a flat display body panel for separating a panel piece separated into a product size, and separating into the above-mentioned respective panel pieces, which are formed on the flat display body panel The plurality of panel sheets are attracted and fixed on the plurality of platforms; then, one of the plurality of platforms is moved relative to the other platform in at least one axial direction on the main surface of the flat display panel, so that the direction is The spacing between adjacent plurality of panel sheets is enlarged, whereby the unnecessary members between the plurality of panel sheets are cut away. The method for separating a planar display body substrate according to claim 7 of the patent application, further comprising the steps of: moving the plurality of platforms to attract according to the size of the flat display body panel and/or the number of panels acquired per sheet; Fix the position of the panel piece of the flat display body panel. The method for separating a mother-substrate substrate according to the seventh aspect or the eighth aspect of the invention, wherein the panel sheet of the flat display panel is composed of a TFT substrate and a CF substrate stacked thereon, and the TFT is formed. The substrate is located on the lower side, and the CF substrate is located on the upper side to perform separation.