JP2006267801A - Apparatus, system and method for disassembling glass substrate for display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus, a system and a method for disassembling a glass substrate in a display panel, where working safety for workers can be improved and the display panel is efficiently disassembled into a front glass substrate and a rear glass substrate. <P>SOLUTION: The display panel glass substrate disassembling apparatus (20a, 20b) comprises: carrying means (6) capable of carrying the display panel (1) in two mutually parallel directions; stop means (8, 9) for stopping the carried display panel (1) on a prescribed position; fixing means (7) for fixing the display panel (1) stopped on the prescribed position in the prescribed position; and a cutting means (5) for cutting at least one side of the display panel (1) fixed by the fixing means (7) on a display panel inner peripheral part which is inside of a portion to which a sealing material (4) is applied. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus and system for disassembling a display panel, and a method for disassembling a display panel. More specifically, the present invention particularly relates to an apparatus and system for disassembling glass substrates adhered to each other into glass substrates, and a method for decomposing a glass substrate, in order to recycle the display panel. About.

  In recent years, plasma displays and liquid crystal displays have attracted attention as display devices suitable for being thin and large. The display panel used for these displays is mainly composed of two glass substrates.

  For example, a display panel of a plasma display includes a front glass substrate and a rear glass substrate disposed to face each other, and pixel electrodes are formed on the front glass substrate. On the other hand, a pixel electrode is formed on the rear glass substrate, and further a phosphor is applied. The front glass substrate and the back glass substrate are sealed with a sealing material, and a discharge gas is sealed between the both substrates at a predetermined pressure.

  A display panel of a liquid crystal display includes glass substrates disposed to face each other, and transparent electrodes, color filters, and the like are formed on the inner surfaces of the glass substrates. The pair of glass substrates are bonded with a sealing material, and liquid crystal is sealed in a space sealed with the sealing material.

  Conventionally, defective panels generated in the manufacturing process and used panels used as products are disposed of by landfill or the like. However, concerns over the shortage of landfill and the burden on the global environment are becoming social issues.

In order to alleviate the above problem, it is effective to make the glass substrate constituting the main part of the display panel recyclable. However, in order to recycle these glass substrates, it is necessary to remove the sealing material, which is a different material. In order to remove different kinds of materials, it is desirable to separate the front glass substrate and the back glass substrate. At present, this disassembling work is mainly performed manually using tools such as a glass cutting cutter and a vibration cutter.
JP 2002-050295 A

  However, in the conventional method described above, the process of disassembling the panel into the glass substrate is manually disassembled into a front glass substrate and a back glass substrate by using a tool or the like. It depends. Therefore, the inefficiency was conspicuous. Further, when the panel is cut in the above-described disassembling process, a cutting portion appears around the glass substrate, so that there is a problem in the work safety of the operator such as handling of the glass substrate.

  The present invention has been made to solve the above-mentioned problems, and improves the work safety of the worker and efficiently disassembles the display panel into a front glass substrate and a rear glass substrate. It is an object to provide a decomposition apparatus and a decomposition method using the same.

  The present invention, in the first aspect, is a display panel glass substrate disassembling apparatus for disassembling a display panel constituted by joining two glass substrates at a peripheral portion for recycling. A transport unit capable of transporting in the forward or backward direction, a stop unit that stops the transported display panel at the stop position, a fixing unit that fixes the display panel stopped at the stop position to the stop position, and a fixing unit. And a cutting means for cutting at least one side of the fixed display panel.

  The present invention, in the second aspect, is a display panel glass substrate disassembly system for disassembling for recycling a display panel configured by joining two glass substrates at the peripheral edge portion. A disassembling device, a rotating means for rotating the display panel by 90 degrees about an axis perpendicular to the display panel, and a second glass substrate disassembling device, wherein the first glass substrate disassembling device moves the display panel in a forward direction or Conveying means capable of conveying in the reverse direction, stopping means for stopping the conveyed display panel at the stop position, fixing means for fixing the display panel stopped at the stop position to the stop position, and a display fixed by the fixing means A first cutting means for cutting at least one side of the panel. Transport means capable of transporting the lay panel in the forward or backward direction, stop means for stopping the transported display panel at the stop position, and fixing means for fixing the display panel stopped at the stop position to the stop position; A second cutting means for cutting at least one side of the display panel fixed by the fixing means, and the rotating means is downstream in the forward direction of the first glass substrate disassembling apparatus and of the second glass substrate disassembling apparatus. The glass substrate decomposition system is arranged on the upstream side in the forward direction.

  The present invention, in a third aspect, is a display panel glass substrate decomposition method for disassembling a display panel for recycling, wherein two glass substrates are joined together with a sealing material at the periphery. The display panel being transported in the forward direction is stopped at the first stop position, the display panel stopped at the first stop position is fixed at the first stop position, and the display panel is fixed at the first stop position. Cutting at least one side of the display panel. The display panel glass substrate disassembling method.

  The display panel glass substrate disassembling apparatus, the disassembling system, and the disassembling method of the present invention have a function that should take on a glass substrate disassembling process that is a part of a process for recycling a display panel having two opposing glass substrates. In the present apparatus and the method using the present apparatus, conveyance, cutting, rotation and removal of cut pieces of the panel are mainly performed mechanically by the present apparatus. Therefore, it has the effect that it is excellent in the work safety of the worker, and can disassemble the front glass substrate and the back glass substrate of the panel with high efficiency.

  Hereinafter, a display panel glass substrate disassembling apparatus and system, and a disassembling method according to the present invention will be described with reference to the accompanying drawings taking a plasma display panel as an example.

  1A and 1B are schematic configuration diagrams of a plasma display panel 1 (hereinafter abbreviated as “panel 1”). FIG. 1A is a plan view of the panel 1, and FIG. 1B is a front view of the panel 1. The panel 1 includes a front glass substrate 2 on which pixel electrodes are formed, and a rear glass substrate 3 on which pixel electrodes are formed and phosphor is applied. Both glass substrates 2 and 3 are sealed with a sealing material 4 as a connecting member in a state where a discharge gas is sealed at a predetermined pressure in a space closed by the substrates 2 and 3 and the sealing material 4. The sealing material 4 is applied to the inside of the glass substrates 2 and 3 at a predetermined distance from the peripheral edge portions with a predetermined width substantially parallel to the side of the panel 1.

  FIG. 2 is a schematic configuration diagram of the panel glass substrate disassembling system according to the present invention used in the recycling process of the panel 1. Fig.2 (a) is a top view of this decomposition | disassembly system, FIG.1 (b) is a front view of this decomposition | disassembly system.

  Referring to FIGS. 2A and 2B, the system includes a first glass substrate decomposition apparatus 20a (abbreviated as “first decomposition apparatus”) and a second glass substrate decomposition apparatus 20b (“first Abbreviated as “two disassembling apparatus”) and a rotating means 10 located between them. The first and second disassembling apparatuses 20 a and 20 b include diamond wheel cutters 5 a and b (hereinafter, abbreviated as “cutter”), which are cutting means 5 for cutting a predetermined portion of the panel 1. The cutter 5a of the first disassembling apparatus 20a, that is, the first cutting means 5a, and the cutter 5b of the second disassembling apparatus 20b, that is, the second cutting means 5b may be cutters having the same function, but preferably the panel 1 is cut. Configure with different lengths. This is because the length of the side of the panel 1 to be cut is different between the cutter 5a and the cutter 5b. In this specification, the cutter 5a and the cutter 5b are generally referred to as the cutter 5 when it is not necessary to distinguish between the cutter 5a and the cutter 5b. Further, the disassembling apparatuses 20a and 20b are provided with conveying means 6 for conveying the panel 1 in two directions of the forward direction 30a and the backward direction 30b along the conveying path, so that the panel 1 is horizontally disposed on the upper surface of the disassembling apparatus. Transport in the direction. The panel 1 conveyed by the conveying means 6 is temporarily stopped and fixed at a predetermined position, that is, a stop position when the predetermined portion is cut by the cutter 5a or b. In order to fix the panel 1, the apparatus includes an advance side stopper 8 that is a means for stopping the panel, that is, a first stop member and a backward side stopper 9 that is a second stop member, and a fixing means 7 for fixing the panel. A base table 7 is provided. The operations of the stoppers 8 and 9 and the fixing means 7 will be described in detail later. The forward-side and backward-side stoppers 8 and 9 are moved upward through holes provided in the conveying means 6 so that their upper ends protrude above the conveying means 6 and come into contact with the conveyed panel 1. . The forward-side and backward-side stoppers 8 and 9 are rod-like members having sufficient rigidity so as not to be deformed by the impulse received from the panel 1 at the time of contact. Although only the upper end portions of the forward side and backward side stoppers 8 and 9 are shown in the drawing, they extend downward and are held so as to be movable in the vertical direction at the lower portion (not shown). The fixing means 7 is composed of a plurality of members arranged in the gap of the conveying means 6 and long in the conveying direction of the panel 1 and members connecting these plural members. The fixing means 7 is held so as to be movable in the vertical direction through the gap of the conveying means 6. The fixing means 7 is movable upward to a height at which the upper end protrudes above the conveying means 6. The material constituting the fixing means 7 may be a material having rigidity capable of supporting the panel 1 without being deformed. In the drawing, the rotation means 10 is arranged at the center of the transport path of the panel 1, that is, downstream in the forward direction of the first disassembling device 20a and upstream in the forward direction of the second disassembling device 20b. The rotating means 10 is a means for rotating the direction of the panel 1 that has been conveyed by the conveying means 6 by 90 degrees in the horizontal direction. The rotating unit 10 includes, for example, a plurality of spherical free rollers, and rotates the direction of the panel 1 by 90 degrees about an axis perpendicular to the panel 1 while holding the panel 1 on the upper surface of the unit 10. Thereby, it is possible to cut the two sides of the panel 1 which are not cut by the cutter 5b of the second disassembling apparatus 20b arranged on the subsequent conveyance path.

  The glass substrate decomposition method by the panel glass substrate decomposition system according to the present invention will now be described with reference to the schematic diagrams of FIGS. 3 to 5 and the flowcharts of FIGS. 6 and 7.

  Referring to FIG. 3A, when the panel 1 is loaded and placed on the transport unit 6 of the present apparatus, the transport unit 6 transports the panel 1 in the forward direction (step S101 in FIG. 6). Here, the forward direction refers to the right direction in the figure. Similarly, the backward direction refers to the left direction in the figure.

  Next, referring to FIG. 3 (b), the advance side stopper 8 of the present apparatus rises and takes a posture state in which it can come into contact with the panel 1 conveyed in the forward direction, that is, a contact posture. That is, when the panel 1 is transported, the advance side stopper 8 rises and takes a contact posture before the foremost part of the panel 1 passes over the advance side stopper 8 (step S102 in FIG. 6). The panel 1 is further conveyed in the forward direction (step S103 in FIG. 6), contacts the forward side stopper 8, and stops at that position, that is, the first stop position (step S104 in FIG. 6).

  When the panel 1 is stopped by the advance side stopper 8, the base table 7 as the fixing means 7 starts to rise (step S105 in FIG. 6). As shown in FIG. 3 (c), the panel 1 is separated from the transport means 6 by the ascent of the base table 7, and is fixed on the base table 7 by its own weight with the foremost part being in contact with the advance side stopper 8.

  Next, as shown in FIG. 4A, one side of the panel 1 is cut by the cutter 5 which is the cutting means 5 (step S106 in FIG. 6). The position at which the panel 1 is cut is determined by the distance between the cutter 5 and the forward stopper 8. Here, the interval is set so that the inner peripheral side of the panel is cut from the sealing material 4 (see FIGS. 1A and 1B) connecting the front glass substrate 2 and the rear glass substrate 3. Is set.

  When the cutting of one side of the panel 1 is completed, the base table 7 carrying the cut one side of the panel 1 moves horizontally in the forward direction (step S107 in FIG. 6). As shown in FIG. 4 (b), since the movement of the panel 1 is restricted by the advance side stopper 8 in the forward direction, even if the base table 7 moves in the forward direction, the panel 1 cannot move together. The cut piece 11 that has lost the scaffold falls downward (step S108 in FIG. 6).

  After that, the base table 7 and the advance side stopper 8 are lowered to the lower side of the conveying means 6 so that the panel 1 can be further conveyed, that is, the open posture (step S109 in FIG. 6), and the panel 7 is further conveyed in the forward direction ( Step S110 in FIG. 6).

  By transporting the panel 1 in the forward direction, after the rearmost part of the panel 1 passes over the backward stopper 9, the backward stopper 9 is raised so that the upper end protrudes upward from the transport means 6. The posture is changed to the contact posture (step S111 in FIG. 6). Next, the transport direction of the transport means 6 is reversed, and the panel 1 is transported in the backward direction (step S112 in FIG. 6). As shown in FIG. 4C, the panel 1 conveyed in the backward direction comes into contact with the raised backward stopper 9, and stops at that position, that is, the second stop position (step S113 in FIG. 6).

  When the panel 1 is stopped by the backward stopper 9, the base table 7 starts to rise (step S114 in FIG. 6) as in the previous step S105 (FIG. 6). 1 is fixed to the base table 7 in a state where the rearmost part 1 is in contact with the backward stopper 9. Similarly to the previous step S106, one side of the rearmost portion of the panel 1 is cut by the cutter 5 which is the cutting means 5 (step S115 in FIG. 6). Also in this step, the panel 1 is cut on the inner peripheral side from the sealing material 4 (see FIGS. 1A and 1B) applied to one side of the rearmost portion of the panel 1.

  Similar to the previous step S107 to step S110, the base table 7 carrying one cut side of the panel 1 moves horizontally in the backward direction (step S116 in FIG. 6), and the cut piece is dropped downward (FIG. 6). In step S117), the base table 7 and the backward stopper 9 are lowered to the lower side of the conveying means 6, that is, in the open position (step S118 in FIG. 6), and the panel 1 is conveyed in the forward direction (step S119 in FIG. 6).

  Next, the panel 1 is conveyed to the rotating means 10. As shown in FIG. 5, the conveyed panel 1 is rotated 90 degrees in the horizontal direction by a plurality of free rollers disposed on the upper surface of the rotating means 10 (step S120 in FIG. 7). By this rotation, the cut sides of the panel 1 become parallel to the transport direction, and the two uncut sides of the panel 1 appear forward and rearward in the transport direction. When the rotation is completed, the rotating means 10 sends the panel 1 in the forward direction, and then the conveying means 6 starts conveying the panel 1 in the forward direction.

  Thereafter, in the same manner as in steps S102 to S119, the two sides of the panel 1 are fixed to the sealing member 4 (FIG. 1) with the panel 1 fixed at the stop position, that is, the third stop position and the fourth stop position. Cutting is performed on the inner circumference side (steps S121 to S138 in FIG. 7). However, in step S125 and step S134, in general, the length of the side of panel 1 to be cut is different from the length of the side of panel 1 cut in steps S106 and S115. Therefore, in steps S125 and S134, the cutter 5b has a configuration suitable for cutting the panel 1 by a length different from that in steps S106 and S115 (cutting step by the cutter 5a).

  The front glass substrate 2 (FIG. 1) and the rear glass substrate 3 (FIG. 1) of the panel 1 in which the portion to which the sealing member 4 (FIG. 1) is applied is cut by the above-described step does not have a member that connects each other. It is. The operator disassembles the panel 1 in this state into glass substrates 2 and 3 (step S139 in FIG. 7), removes the applied pixel electrodes and phosphors (step S140 in FIG. 7), and proceeds to the glass recycling process. And 3 are sent to recycle the glass (step S141 in FIG. 7).

  In the present embodiment, the cutting means 5 is a diamond wheel cutter 5. In addition, the cutting means 5 may be, for example, a vibrating blade, an energized wire, a water jet and sand blast that is a kind of jetting, or laser cutting.

  In the present embodiment, the fixing means is a base table 7 that carries the panel 1. In addition, as shown in FIG. 8, the fixing means may be a pressing means 12 that presses the panel 1 from above. If such a pressing means 12 is employed as a fixing means, Step S107, Step S116, Step S126, and Step S135 of FIGS. 6 and 7 are not necessary. The base table raising step (step S105, step S114, step S124, and step S133) is a step for lowering the pressing means 12, and the base table and stopper lowering step (step S109, step S118, step S128, and Step S137) is a pressing means raising step and a stopper lowering step.

  In the present embodiment, the means for rotating the panel 1 uses a plurality of free rollers having a spherical shape as shown in FIGS. As another means for rotating the panel 1, for example, as shown in FIG. 9, the panel 1 is supported by a substantially L-shaped structure 110, and the panel 110 is rotated by rotating the structure 110 by 90 degrees. it can. Further, for example, the means for rotating the panel 1 may be a rotating means 210 that rotates 90 degrees while adsorbing the surface of the panel 1 as shown in FIG. Alternatively, it is possible to provide a means for blowing air on the lower surface of the panel 1 and rotate the panel 90 degrees with the panel slightly lifted.

  Further, instead of providing a rotating means, the transport path of this apparatus is configured in a substantially L shape as shown in FIG. 11, and the panel 1 is rotated 90 degrees with respect to the transport direction by tilting the transport direction of the panel 1 by 90 degrees. You may give the same effect as that. In this case, means for rotating the panel 1 is not necessary.

  In the present embodiment, the base table 7 carrying the cut piece 11 is moved in the lateral direction to drop the cut piece 11 (see step S107 and step S116 in FIG. 6, and step S126 and step S135 in FIG. 7). ). However, regarding the method of dropping the cut piece, the base table is not moved laterally, but the portion of the base table 7 on which the cut piece 11 is placed is bent with respect to the base table 7 as shown in FIG. It may be dropped.

  In the present embodiment, the plasma display panel 1 is used as the display panel. However, the display panel is not limited to a plasma display panel, and may be a liquid crystal display panel or a field emission display panel.

  According to the display panel glass substrate disassembling method and apparatus of the present invention, when recycling a display panel composed of two opposing glass substrates, the panel is transported, cut, rotated and removed after cutting. Since the operation is performed not by hand, but by an apparatus, the panel can be efficiently disassembled into a front glass substrate and a rear glass substrate, and the display panel glass substrate can be recycled without any problem in terms of work safety. Therefore, the glass substrate can be reused as a glass raw material, and problems such as deterioration of the global environment and lack of landfill can be solved.

(A): Configuration schematic plan view of a plasma display panel. (B): Configuration schematic front view of plasma display panel. (A): The structure schematic plan view of the display panel glass substrate decomposition | disassembly apparatus of this invention. (B): Configuration schematic front view of display panel glass substrate disassembling apparatus of the present invention. (A) thru | or (c): Operation | movement explanatory drawing showing operation | movement and the decomposition | disassembly method of the display panel glass substrate decomposition | disassembly apparatus of this invention. (A) thru | or (c): Operation | movement explanatory drawing showing operation | movement and the decomposition | disassembly method of the display panel glass substrate decomposition | disassembly apparatus of this invention. Operation | movement explanatory drawing showing operation | movement and the decomposition | disassembly method of the display panel glass substrate decomposition | disassembly apparatus of this invention. The flowchart showing operation | movement and the decomposition | disassembly method of the display panel glass substrate decomposition | disassembly apparatus of this invention. The flowchart showing operation | movement and the decomposition | disassembly method of the display panel glass substrate decomposition | disassembly apparatus of this invention. It is a figure which shows the modification of the panel fixing means in the display panel glass substrate decomposition | disassembly apparatus of this invention. It is a figure which shows the modification of the panel rotation means in the display panel glass substrate decomposition | disassembly apparatus of this invention. It is a figure which shows the further modification of the panel rotation means in the display panel glass substrate decomposition | disassembly apparatus of this invention. It is a figure which shows the modification of the panel conveyance means in the display panel glass substrate decomposition | disassembly apparatus of this invention. It is operation | movement explanatory drawing showing the modification of the removal method of a cut piece in the display panel glass substrate decomposition | disassembly apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Plasma display panel 2 ... Front glass substrate 3 ... Back glass substrate 4 ... Sealing material 5a ... Diamond wheel cutter (cutting means)
5b Diamond wheel cutter (cutting means)
6 ... Conveying means 7 ... Base table (fixing means)
8 ... Advance side stopper 9 ... Backward side stopper 10 ... Rotating means 11 ... Cutting piece 20a ... Display panel glass substrate decomposition apparatus 20b ... Display panel glass substrate decomposition apparatus 30a ... Forward direction 30b ... Reverse direction 110 ... Rotating means 210 ... Rotating means

Claims (21)

A display panel glass substrate disassembling apparatus for disassembling a display panel composed of two glass substrates joined at a peripheral portion for recycling,
Transport means capable of transporting the display panel in the forward or backward direction;
Stop means for stopping the transported display panel at a stop position;
Fixing means for fixing the display panel stopped at the stop position to the stop position;
And a cutting means for cutting at least one side of the display panel fixed by the fixing means. The stop means has a first stop member that is located downstream of the cutting means in the forward direction, and is provided so as to be switchable between a contact posture and an open posture,
The contact posture is a posture of the first stop member that is conveyed in the forward direction and the display panel that has reached the first stop position contacts the first stop member.
The glass substrate disassembling apparatus according to claim 1, wherein the opening posture is a posture that does not contact the display panel transported to the first stop position. Furthermore, the stop means has a second stop member that is located upstream of the cutting means in the forward direction and is provided so as to be switchable between a contact posture and an open posture.
The abutting posture is a posture of the second stop member that is conveyed in the backward direction and abuts the display panel that has reached a second stop position and the second stop member;
The glass substrate decomposition apparatus according to claim 2, wherein the opening posture is a posture that does not contact the display panel transported to the second stop position.   The glass substrate decomposition apparatus according to claim 1, wherein the fixing means is a base table that supports the display panel and can be raised and lowered. The fixing means includes a pressing means for pressing the display panel,
The glass substrate decomposition apparatus according to claim 1, wherein the pressing unit presses the display panel against the transport unit.   The glass substrate decomposition apparatus according to claim 1, wherein the display panel is a plasma display panel.   The glass substrate decomposition apparatus according to claim 1, wherein the display panel is a liquid crystal display panel.   The glass substrate decomposition apparatus according to claim 1, wherein the display panel is a field emission display panel.   The glass substrate disassembling apparatus according to claim 1, further comprising a rotating unit that rotates the display panel by 90 degrees about a vertical axis.   The glass substrate disassembling apparatus according to claim 9, wherein the rotating unit is located downstream in the forward direction of the conveying unit. A display panel glass substrate disassembling system for disassembling a display panel configured by joining two glass substrates at a peripheral portion for recycling,
A first glass substrate decomposition apparatus;
Rotating means for rotating the display panel by 90 degrees about an axis perpendicular to the display panel;
A second glass substrate decomposition apparatus,
The first glass substrate decomposition apparatus includes:
Transport means capable of transporting the display panel in the forward or backward direction;
Stop means for stopping the transported display panel at a stop position;
Fixing means for fixing the display panel stopped at the stop position to the stop position;
First cutting means for cutting at least one side of the display panel fixed by the fixing means;
The second glass substrate disassembling apparatus includes:
Transport means capable of transporting the display panel in the forward or backward direction;
Stop means for stopping the transported display panel at a stop position;
Fixing means for fixing the display panel stopped at the stop position to the stop position;
Second cutting means for cutting at least one side of the display panel fixed by the fixing means;
The glass substrate decomposition system, wherein the rotating means is disposed downstream in the forward direction of the first glass substrate decomposition apparatus and upstream in the forward direction of the second glass substrate decomposition apparatus. . The first cutting means is configured to cut either one of the long side and the short side of the display panel,
12. The glass substrate decomposition system according to claim 11, wherein the second cutting unit is configured to cut either one of a long side and a short side of the display panel. A display panel glass substrate disassembling method for disassembling a display panel for recycling, comprising two glass substrates joined together with a sealing material at the periphery,
Stopping the display panel being conveyed in the forward direction at a first stop position;
Fixing the display panel stopped at the first stop position to the first stop position;
Cutting the at least one side of the display panel fixed at the first stop position.   The method for disassembling a glass substrate according to claim 13, wherein the fixing step includes a step of supporting the display panel on a base table.   The glass substrate decomposition method according to claim 13, wherein the fixing step includes a step of pressing the display panel.   The method of claim 13, wherein the display panel is a plasma display panel.   The glass substrate decomposition method according to claim 13, wherein the display panel is a liquid crystal display panel.   The glass substrate decomposition method according to claim 13, wherein the display panel is a field emission display panel. A step of transporting the display panel in a backward direction;
Stopping the display panel at a second stop position different from the first stop position;
Fixing the display panel stopped at the second stop position to the second stop position;
The method for disassembling a glass substrate according to claim 13, further comprising a step of cutting one side of the display panel fixed at the second stop position, the side facing the one side cut in the cutting step. . And a step of removing the cut portion of the display panel cut in the cutting step.
14. The glass according to claim 13, wherein the removing step includes a step of bending a part of a means for fixing the display panel in the cutting step and dropping the cut one side downward. Substrate disassembly method. A display panel glass substrate disassembling method for disassembling a display panel for recycling, comprising two glass substrates joined together with a sealing material at the periphery,
Stopping the display panel being conveyed in the forward direction at a first stop position;
Fixing the display panel stopped at the first stop position to the first stop position;
Cutting at least one side of the display panel fixed to the first stop position;
Transporting the display panel in a backward direction;
Stopping the display panel at a second stop position;
Fixing the display panel stopped at the second stop position to the second stop position;
Cutting at least one side of the display panel fixed at the second stop position;
Transporting the display panel in a forward direction;
Rotating the display panel 90 degrees about an axis perpendicular to the panel;
Conveying the rotated display panel in a forward direction;
Stopping the display panel being conveyed in the forward direction at a third stop position;
Fixing the display panel stopped at the third stop position to the third stop position;
Cutting at least one side of the display panel fixed at the third stop position;
Transporting the display panel in a backward direction;
Stopping the display panel at a fourth stop position;
Fixing the display panel stopped at the fourth stop position to the fourth stop position;
Cutting the at least one side of the display panel fixed at the fourth stop position.

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