KR101896365B1 - The grass scribing method using a display equipment - Google Patents

Abstract

The present invention relates to a glass dividing method used for a display device, which is developed for increasing productivity while lowering a fault rate. The method comprises: a scriber process of forming a stick cell and then placing the cell on the upper surface of a scriber table; a dividing process including a first pickup transfer step, a dividing and transferring step, and a tilting and dividing step; an inspection process including a second pickup transfer step, an arrangement step of arranging a position of an individual cell, and an inspection step of inspecting damage to the arranged individual cell; and a discharge process of discharging each completely inspected individual cell while sorting out defective ones. In the glass dividing method, the processes are sequentially conducted.

Description

[0001] The present invention relates to a method of dividing a glass used in a display device,

The present invention relates to a method of dividing a glass used in a display device, and more particularly, to a method of dividing a plurality of unit cells constituting a glass substrate in a large glass into a lattice array when producing a glass substrate used in various display devices, And more particularly, to a method of dividing a glass used in a display device, which is developed in order to increase the productivity and reduce the defective rate by performing the separation operation by an automated process at the time of separation.

In the past, cathode ray tube display devices have evolved into a variety of display devices such as LCDs and OLEDs with the development of technology, and the development of the technology is getting faster and faster.

2. Description of the Related Art [0002] In a display device used in various portable devices such as a mobile phone and a notebook computer, a relatively small-sized display device is mounted as compared with a television, and a method of manufacturing a display device by performing a single process on a glass The productivity becomes relatively low.

Therefore, it is common to perform a scriber process in which a plurality of unit cells forming a glass substrate in a large glass are formed into a lattice array and then separated into individual cells. Finally, in the process of separating into individual cells, a dedicated tool or device is used But a lot of it depends on manual work.

However, such manual work is likely to cause defects during work, and when the work is interrupted due to worker rest or replacement, other facilities may be limited in operation.

Korean Patent Registration No. 10-00150266-0000 (June 12, 1998) Korean Patent Registration No. 10-01329819-0000 (November 08, 2013) Korea Utility Model Registration No. 20-0481991-0000 (November 29, 2016) Korea Utility Model Registration No. 20-0482040-0000 (December 02, 2016)

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the above problems, and an object of the present invention is to provide a method for separating a stick cell, which is cut at a scriber facility and provided for dividing into a plurality of cells sequentially, And a method for dividing a glass used in a display device for inspecting whether or not a lower portion is defective.

According to an aspect of the present invention, there is provided a liquid crystal display device including: a plurality of scriber lines, each of which is a line recessed in an array of front, back, right and left lattice arrays, on a top surface of a glass substrate; A scriber process for dividing the cells in a horizontal or vertical scriber line to form a stick cell in which individual cells are extended in series and placed on the upper surface of the scriber table;

A first pick-up transferring step of picking up and lifting a stick cell located in the scriber table and horizontally moving the first pick-up transferring device to one of two or more division tables located below the movement path; The tilting table moves to the lower portion of the individual cell when the individual cells at the end are moved away from the front end of the division table, And a tilting step of dividing the scriber line connecting the individual cells so that the scriber line is broken while the front of the tilting table is lifted after the bottom surface is adsorbed;

A second pick-up transfer step of picking up individual cells separated in the dividing step by a second pick-up transfer device, horizontally moving the picked-up cells, and placing the pick-up devices on a rotary table located below the movement path; An aligning step of aligning the positions of the individual cells by moving the aligning bar, and an inspection step of inspecting the aligned individual cells for damage;

And a discharging step of discharging each individual cell, which has been inspected, separately from the defective product, in sequence.

In addition, in the first pick-up process of the cutting process, the stick cells located on the scriber table are picked up and lifted, horizontally moved, and a vision camera positioned at the lower side to confirm and align the positions of the stick cells. And further performing the above-described process.

In addition, after performing the tilting and dividing process of the dividing step, the tilting table is restored to a horizontal state, then moved forward and stopped, and the cutting bar passes between the cut surfaces of the two individual cells cut from the top to the bottom, And a step of raising and lowering the impact bar is further performed.

In addition, in the divisional transfer process of the division process, the elongated portion extending in the forward and backward direction is raised at the center of the division table to lift the stick cell, horizontally move by the width of the individual cell, And returning to the initial position.

In the inspection process in the inspection process, when the rotation table is rotated up and down by 180 degrees while the rotation table having the alignment process adsorbs the individual cells and the inspection table located at the bottom rises, the individual cells are detached and positioned in the inspection table, And then passes through the tester to inspect the damage of the upper surface and the lower surface.

As described above, according to the present invention, the stick cell is divided into individual cells by means of a complete manual work by a separate tool or an apparatus requiring labor, and it is divided by the automated equipment so that the defect rate It is possible to obtain a high-quality glass substrate having a low defect rate by inspecting whether or not there is a defect in the upper part and the lower part after the cutting operation.

1 is a block diagram according to an embodiment of the present invention.
2 is a plan view of an embodiment of the present invention.
3 is a conceptual view illustrating a process of processing a glass substrate according to an embodiment of the present invention.
FIG. 4 is a conceptual diagram showing the arrangement of the apparatus in the division process according to the embodiment of the present invention.
FIG. 5 is a perspective view illustrating a dividing device according to an embodiment of the present invention.
6 to 7 are side views showing the operation of the dividing device according to the embodiment of the present invention
FIG. 8 is a plan view showing a breaking apparatus according to an embodiment of the present invention.
9 is a perspective view showing an inspection apparatus according to an embodiment of the present invention.
10 is a perspective view of a main part of an inspection apparatus according to an embodiment of the present invention.
11 is a plan view showing an inspection apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram according to an embodiment of the present invention, FIG. 2 is a plan view according to an embodiment of the present invention, FIG. 3 is a conceptual view illustrating a process of processing a glass substrate according to an embodiment of the present invention, In order to separate the glass or glass substrate 1 into individual individual cells 12, the present invention comprises a scribing process, a dividing process by the dividing device 2, an inspection process by the inspection device 3, 4), so that a completely automated process can be performed by hand or by a part of a worker who needs to intervene, thereby improving the production efficiency and reducing the defect rate.

In the scribing process, a plurality of scriber lines 11 are formed on the upper surface of the glass substrate 1, and the scriber lines 11, Each of the individual cells 12 is divided so that the individual cells 12 are divided along the horizontal or vertical scriber line 11 to form a stick cell 13 which is elongated in series, In the dividing step, the individual cells 12 are separated from the stick cells 13 and checked for abnormality and discharged.

In this process, in consideration of the process speed in each process, three processes are performed in the separation process in the separation process, and two inspection devices 3 in the inspection process are arranged .

FIG. 4 is a conceptual view showing a device arrangement in the dividing process according to an embodiment of the present invention, FIG. 5 is a perspective view showing a dividing device according to an embodiment of the present invention, and FIGS. 8 is a plan view showing a dividing device according to an embodiment of the present invention. In the scriber process, the stick cell 13 is seated on the upper surface of the scriber table 14 The first pick-up device 21 picks up the stick cells 13 located on the scriber table 14 and lifts them up, moves them horizontally and places them on one of the two or more partition tables 22 located below the movement path A step of moving the stick cells 13 located in the division table 22 forward by the width of the individual cells 12 and a step of moving the individual cells 12 at the end (12) The tilting table 23 is moved to the lower portion of the individual cell 12 to absorb the bottom surface of the individual cell 12 and then the front of the tilting table 23 rises, And a tilting step of dividing the scriber line 11 connecting the cells 12 so as to be broken.

At this time, in the first pick-up process of the dividing process, the stick cells 13 located on the scriber table 14 are attracted and lifted and horizontally moved, and the stick cells 13 adsorbed by the vision camera 24 It is preferable to further perform a vision alignment process of confirming and aligning the positions of the light sources 13 and 13.

When the transferred stick cell 13 is positioned at the upper position, the vision camera 24 confirms whether the stick cell 13 is accurately aligned and adsorbed while moving horizontally. If the stick cell 13 is not correctly aligned, It is preferable that the first pick-up device 21 is moved in the XYZ-axis direction as well as in the XY-plane so as to be able to rotate on the XY plane .

In addition, in the divided transferring process of the dividing step, the long extended portion in the forward and backward direction is raised at the center of the partition table 22 to lift the stick cell 13 and move horizontally by the width of the individual cell 12, And returning to the initial position at a position lower than the upper end of the division table 22 is shown.

That is, a method of preventing scratches or the like from occurring in the glass substrate is not a method in which the stick cell 13 slides and moves in the partition table 22, but the movable bar 26 extending in the front- It is preferable to move in such a manner that the center of the stick cell 13 is supported by the cam-like structure and moves forward while moving downward, and then descends and returns.

3, the stick cells 13 are connected to a plurality of individual cells 12, and the entire connection between the individual cells 12 is not formed with the scriber lines 11, When the front of the tilting table 23 is elevated in the process of tilting, that is, when the tilting table 23 is bent so as to form an obtuse angle toward the top, the scriber line 11 It is separated.

At this time, due to the nature of the glass, the cut surface is not smooth and the burr protruding in the middle is formed. In order to remove such burrs, the tilting table 23 is restored to a horizontal state And moving and stopping the striking bar 25 so that the striking bar 25 is passed between the cut surfaces of the two individual cells 12 cut from the upper part to the lower part to trim the cut surface. An example is further provided.

FIG. 9 is a perspective view showing an inspection apparatus according to an embodiment of the present invention, FIG. 10 is a perspective view of a main part of an inspection apparatus according to an embodiment of the present invention, and FIG. 11 is a perspective view showing an inspection apparatus according to an embodiment of the present invention. And a second pick-up unit 31 for picking up individual cells 12 separated by the second pick-up device 31 by the second pick-up device 31 and horizontally moving the picked-up individual cells 12 on a rotary table 32 located below the movement path, A sorting process of aligning the positions of the individual cells 12 by moving the alignment bars 33 located at the front and rear sides of the rotary table 32 and checking the damage of the aligned individual cells 12 And an inspection apparatus 3 for performing an inspection process including an inspection process.

In order to determine whether there is a defect in the separated individual cells 12, when the individual cells 12 are first placed on the rotary table 32, the three alignment bars 33 are brought into close contact with each other, Which will be referred to herein as a device capable of simultaneously aligning two individual cells 12.

At this time, in the inspection process in the inspection process, when the rotary table 32 after the aligning process rotates 180 degrees up and down while sucking the individual cells 12 and the inspection table 34 located at the lower part ascends, So that the inspection table 34 is moved and passed through the inspection device 35 so as to inspect the damage on the upper surface and the lower surface.

In addition, the discharging device 4 shown in FIG. 2 of the present invention performs an discharging process for separating each individual cell 12, which has been inspected, from a defective product, and separates the rejected product and the defective product To the loaded tray.

1: glass substrate
11: Scriber line 12: Individual cell
13: stick cell 14: scriber table
2: Separation device
21: first pick-up device 22:
23: a tilting table 24: a vision camera
26: Move bar
3: Inspection device
31: second pick-up device 32: rotary table
33: alignment bar 24: inspection table
35: Inspectors
4: Discharging device

Claims (5)

A plurality of scriber lines 11 are formed on the upper surface of the glass substrate 1 in the form of lines sandwiched in the front, back, left and right grid arrangements so that each individual cell 12 having a rectangular shape formed by the scriber line 11 A scriber process is performed in which the individual cells 12 are formed in a long length in the form of a stick cell 13 and are placed on the upper surface of the scriber table 14 and;
The stick cell 13 located on the scriber table 14 is sucked and lifted and horizontally moved so that the position of the stick cell 13 adsorbed by the vision camera 24 positioned at the bottom is ascertained and aligned, A first pickup transfer step of placing the stick cell 13 on one of two or more partition tables 22 located below the movement path and a second pickup transfer process of placing the stick cell 13 located in the division table 22 in the individual cell The tilting table 23 is moved in the direction of the width of the individual cell 12 so that the individual cells 12 at the end are moved out of the front end of the division table 22 by the division transfer process, 12 to move the scraper line 11 connecting the individual cells 12 while the front of the tilting table 23 is lifted up after the bottom surface of the individual cell 12 is adsorbed, And a tilting step (step < RTI ID = 0.0 > 23 are restored to a horizontal state, moved forward and then stopped, and the striking bar 25 is passed through between the cut surfaces of the two individual cells 12 cut from the upper part to the lower part, ;
A second pickup transfer process in which the individual cells 12 separated in the separation process are sucked and lifted by the second pick-up device 31, horizontally moved and placed on a rotary table 32 located below the movement path, A sorting process for aligning the positions of the individual cells 12 by moving the alignment bars 33 located at the front and rear sides of the rotary table 32 and the inspection process for inspecting the aligned individual cells 12 An inspection step of:
And a discharging step of separating each of the individual cells (12), which have been inspected, from a defective product and discharging the individual cells (12), are sequentially performed. delete delete [3] The method according to claim 1, wherein, in the step of transferring the divided cells, the extended portion in the forward and backward direction is raised at the center of the partition table (22) to lift the stick cells (13) And returning to the initial position at a position lower than the upper end of the partition table 22. The method of claim 1, The inspection method according to claim 1, wherein, in the inspection process, when the rotation table (32) having been subjected to the alignment process rotates up and down by 180 degrees while adsorbing the individual cells (12) (12) is detached from the inspection table (34), and the inspection table (34) is moved and passed through the inspection device (35) to inspect the upper and lower surfaces for damage. Glass breaking method.

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