KR20120027754A - Scribing method of assembled brittle substrates having steps - Google Patents

Scribing method of assembled brittle substrates having steps Download PDF

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Publication number
KR20120027754A
KR20120027754A KR1020100089525A KR20100089525A KR20120027754A KR 20120027754 A KR20120027754 A KR 20120027754A KR 1020100089525 A KR1020100089525 A KR 1020100089525A KR 20100089525 A KR20100089525 A KR 20100089525A KR 20120027754 A KR20120027754 A KR 20120027754A
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KR
South Korea
Prior art keywords
panel
scribing
stepped
stepped portion
wheel
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KR1020100089525A
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Korean (ko)
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KR101696719B1 (en
Inventor
장희동
Original Assignee
주식회사 탑 엔지니어링
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Priority to KR1020100089525A priority Critical patent/KR101696719B1/en
Publication of KR20120027754A publication Critical patent/KR20120027754A/en
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Publication of KR101696719B1 publication Critical patent/KR101696719B1/en

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/037—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/10—Glass-cutting tools, e.g. scoring tools
    • C03B33/105—Details of cutting or scoring means, e.g. tips
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

PURPOSE: A scribing method of brittle bonded panel which includes stepped pulley part is provided to prevent bending and breaking of scribing wheel which is caused by compressive force during scribing of small sized panel. CONSTITUTION: A scribing method of brittle bonded panel which includes stepped pulley part comprises the following steps: scribing from one end of a second panel(200) in sealing panel to a start point of stepped pulley part(300); scribing full-width of a first panel(100) by flipping over the sealing panel; and scribing pulley part of the second panel by dropping scribing wheel(400). The scribing of the stepped pulley part domain of the second panel proceeds from a corner part in the stepped pulley part to the other end of the second panel or the other way around. The scribing line does not form from the corner part of the stepped pulley part in the second panel to a radius of the scribing wheel.

Description

Scribing method of assembled brittle substrates having steps

The present invention relates to a scribing method of a brittle cladding panel having a stepped portion, in particular to prevent the breakage of one panel of the cladding panel by bending during scribing due to the stepped portion of the cladding panel and the pressing force of the scribing wheel. It relates to a scribing method of the laminated panel having a stepped portion.

Generally, a liquid crystal display device includes a liquid crystal display panel including a driving circuit unit, a backlight unit disposed under the liquid crystal display panel to emit light to the liquid crystal display panel, and supporting the backlight unit and the liquid crystal display panel. It consists of a mold frame (mold frame) and case (case).

In addition, in order to improve the yield of the liquid crystal display panel, thin film transistor array panels are formed in a large area mother glass panel, color filter panels are formed in a separate mother glass panel, and then a thin film transistor array panel and a color filter panel are formed. It is manufactured through the process of cutting into each unit liquid crystal display panel from the laminated bonding panel.

In general, the cutting of the unit liquid crystal display panel is performed by forming a scribe line on both surfaces of the bonding panel using a wheel having a hardness higher than that of glass, and causing cracks to propagate along the scribing line. .

1 is a diagram schematically illustrating a cross-sectional structure of a liquid crystal display panel in which a thin film transistor array panel 1 is bonded to a color filter panel 2.

As shown in FIG. 1, in order to expose the terminal portion 6 of the thin film transistor array panel 1, the stepped portion 3 is formed by cutting and removing the color filter panel 2 of the corresponding portion.

Hereinafter, the rather narrow color filter panel 2 will be referred to as the first panel, and the relatively thin film transistor array panel 1 with respect to the color filter panel 2 will be referred to as the second panel. The hatched portion in the figure is the portion to be removed as the dummy portion 7.

On the other hand, in the case of a scribing operation for producing a small panel of about 4 to 5 inches before and after, as shown in Figure 1, the first step (stick) having a step portion (3) through the scribing operation To form a panel.

2 illustrates a sticking panel 10 having a stick shape in which a terminal part is exposed at one side through such a scribing operation.

Next, the sticking panel 10 is cut perpendicularly to its longitudinal direction to produce a predetermined unit panel.

A conventional scribing method for producing the unit panel 11 (see FIG. 2) from the sticking panel 10 is shown in FIG. 3.

As shown in FIG. 3, in the related art, first, a stick-shaped bonding panel 10 is placed on a table T, and the color filter panel 2, which is the first panel, is horizontally scribed, and then, again, the stick-shaped panel 10 is placed. The bonding panel 10 is turned upside down to scribe the thin film transistor array panel 1.

However, conventionally, when scribing the thin film transistor array panel 1 while the color filter panel 2 is placed on the table T, the color filter panel 2 and the thin film transistor array panel 1 are mutually different. This is not a problem in the abutting part, but when the scribing wheel 5 performs scribing on the thin film transistor array panel 1 with the terminal part 6 exposed, the upper edge of the color filter panel 2 (that is, The bending occurred downwardly with respect to the corner part C), and a crack occurred.

In particular, in recent years, the thickness of the glass panel is gradually becoming thin, and the phenomenon of breaking by only a slight bending deformation frequently occurs.

In order to solve this problem, it may be considered to place the support plate in the space (4) where the step is present, but in this case it is not appropriate because there are various disadvantages such as the generation of static electricity, foreign matter inclusion, scratch generation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to prevent bending due to the pressing force of the scribing wheel and cracking during scribing of a small panel, thereby preventing waste of materials and high yield. The present invention provides a method for scribing a brittle adhesive panel having a stepped portion that can be raised to significantly increase productivity.

In order to achieve the above object, the scribing method of the brittle bonding panel having a stepped portion in accordance with the present invention is a scribing method of the first panel and the second panel bonded to form a stepped portion,

Scribing from one side of the second panel to the point where the step is started;

Scribing the entire width from one side of the first panel in a state where the bonding panel is turned upside down; And,

Scribing the stepped area of the second panel by lowering the scribing wheel.

In addition, the scribing method of the brittle bonding panel having a stepped portion according to the present invention, in the scribing method of the first panel and the second panel formed with the stepped portion,

Scribing the full width from one side of the first panel;

Lowering the scribing wheel to scribe the stepped area of the second panel; And,

And a step of scribing from one side of the second panel to the point where the step is started in the inverted state of the bonding panel.

The scribing of the stepped region of the second panel is characterized by starting from the corner of the stepped portion and towards the other end of the second panel.

Instead, the scribing of the stepped area of the second panel may proceed from the other end of the second panel toward the corner of the stepped part.

In the second panel, a scribing line is not formed from a corner of the step portion to a radius of a scribing wheel.

In addition, the primary crack formed on the second panel constituting the stepped portion and the primary crack formed on the bottom of the second panel is characterized in that they meet each other when the second crack progresses.

In addition, before the step of descending the scribing wheel, characterized in that it further comprises the step of determining the starting position of the step using the input distance data.

In addition, before the step of descending the scribing wheel, it characterized in that it further comprises the step of determining the start position of the stepped portion by detecting the stepped portion from the camera or sensor.

According to the present invention of the configuration as described above, by preventing the bending by the pressing force of the scribing wheel during scribing a small panel by varying the method for performing scribing on the glass panel, This has the advantage of preventing the waste of materials and increasing the yield.

1 is a cross-sectional view schematically illustrating a cross-sectional structure of a liquid crystal display panel in which a thin film transistor array panel and a color filter panel are bonded to each other.
Figure 2 is a plan view showing a sticking panel of the stick form made through scribing.
3 is a view showing a scribing method of a brittle bonding panel having a step according to the prior art.
4 is a view showing a scribing method of a brittle bonding panel having a stepped portion according to the present invention.
FIG. 5 is a diagram illustrating the types of primary cracks generated by the scribing method of FIG. 4 and secondary cracks generated in a braking process. FIG.
Figure 6 is a schematic diagram showing a system for implementing a scribing method of a brittle bonding panel having a stepped portion in accordance with the present invention.

Hereinafter, with reference to the accompanying Figures 4 to 6 will be described in detail a preferred embodiment of the present invention.

As shown, the brittle bonding panel (A) having a stepped portion according to the present invention, the first panel 100 and the second panel 200 is configured to be bonded but relatively compared to the width of the first panel 100 The width of the second panel 200 is large, the glass panel has a stepped portion 300 is formed on one side.

In order to scribe the glass panel on which the stepped part 300 is formed with the scribing wheel 400, first, scribing from one side of the second panel 200 to the point where the stepped part 300 starts.

According to the scribing process of this step, since the scribing wheel 400 has not passed the stepped portion 300, the stepped second panel 200 is not bent.

Next, the entire width of the first panel 100 is scribed from one side of the first panel 100 while the bonding panel A is turned upside down.

Subsequently, the scribing wheel 400 is lowered to scribe the stepped area 300 of the second panel 200 to complete the entire scribing process.

In this case, it is preferable to determine the position of the step portion 300 before the step of descending the scribing wheel. This is because the scribing wheel 400 may interfere with the first panel 100 when descending due to the radius of the scribing wheel 400. That is, in order to prevent the interference of the scribing wheel 400, it is necessary to descend in a state where at least as much as the radius of the scribing wheel 400 from the point where the step 300 starts.

The position of the stepped part 300 may be determined by using previously input distance data or by sensing through a camera or a sensor.

4 illustrates a configuration in which the camera 500 is disposed to determine the position of the stepped part 300 as an example.

In this case, the vision camera 500 may be used to calculate the coordinates of the starting point of the stepped part 300 and thereby accurately determine the distance to which the scribing wheel 400 should move.

As shown in FIG. 4, according to the present invention, since the scribing wheel 400 has a predetermined radius, the scribing wheel (from the corner C) from the point where the stepped portion 300 starts, As the radius of 400) is moved further down.

Therefore, a scribing line is not formed in the second panel 200 from the corner portion C of the step portion 300 to the radius of the scribing wheel 400.

However, it is not necessary to move only as much as the radius of the scribing wheel 400 from the corner portion C, and additional movement is also possible within the limits in which secondary cracks to be described later may be naturally formed.

On the other hand, when a sensor (not shown) is used to determine the position of the stepped part 300, it is preferable that the scribing wheel 400 detects the moment passing the corner part C of the stepped part 300.

This is because, since the center of the scribing wheel 400 has to move further beyond the corner portion C, if the starting position of the stepped portion 300 is detected before the additional movement, a margin for control can be obtained. .

As described above, in the case of the second panel 200, a scribing line (primary crack) is not continuously formed on one surface thereof, but one surface thereof is up to the width of the first panel 100, and the other surface thereof has a stepped portion 300. Since a scribing line is formed in a portion of the), a continuous scribing line is not formed and discontinuity occurs in position and length.

However, as shown in FIG. 5, in the subsequent braking process, primary cracks (dotted lines) formed in diagonal directions on one surface and the other surface of the second panel 200 are propagated toward each other to naturally connect with the secondary cracks. (Dotted and dashed lines) are formed.

Therefore, in the subsequent braking process, the cut surface is broken and no defect occurs.

6 shows a system for implementing a scribing method of a brittle bonding panel having a stepped portion according to the present invention.

As shown, first, when the panel A is placed on the table T, the camera 500 or a sensor (not shown) detects a reference point of the panel A to transmit a signal to the controller 800. do.

The control unit 800 calculates the position of the reference point to move the motor 700 such as a motor and a feed screw as a vertical moving means of the scribing head 900, a voice coil motor or a hydraulic cylinder, and a linear motor as a horizontal moving means. Drive the scribing.

Next, the position of the step part 300 is determined to determine the lowering position of the scribing wheel 400, and the scribing wheel 400 is lowered by the thickness of the first panel 100.

Subsequently, the surface of the stepped portion on the second panel 200 is scribed to complete the scribing of the portion having the stepped portion 300.

The opposite side of the stepped part 300 may be placed on the table T by inverting the bonding panel A and performing scribing in the same manner as the above process.

When the scribing is completed, a predetermined unit panel is continuously manufactured through the braking operation.

In the above-described example, the second panel 200 is preferentially scribed, but the stepped portion 300 of the first panel 100 and the second panel 200 is preferentially scribed and the second The surface opposite to the stepped portion of the panel 200 may be subsequently scribed.

In addition, the scribing of the stepped portion 300 region of the second panel 200 may be directed from the corner portion C of the stepped portion 300 to the other end of the second panel 200. You may make it progress toward the corner part C of the step part 300 from the other end of the 2nd panel 200. FIG.

In consideration of the physical properties of the bonding panel A, that is, brittleness, hardness, or toughness, it is preferable to select a scribing line that is most appropriately formed and the secondary cracks can be smoothly connected.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

A ... cemented panel
C ... corner
100 ... First Panel
200 ... second panel
300 ... step
400 ... scribing wheel

Claims (8)

In the scribing method of the first panel and the second panel bonded to the stepped portion,
Scribing from one side of the second panel to the point where the step is started;
Scribing the entire width from one side of the first panel in a state where the bonding panel is turned upside down; And,
Scribing the stepped area of the second panel by lowering the scribing wheel.
In the scribing method of the first panel and the second panel bonded to the stepped portion,
Scribing the full width from one side of the first panel;
Lowering the scribing wheel to scribe the stepped area of the second panel; And,
And a step of scribing from one side of the second panel to the point where the step is started in the state in which the panel is turned upside down.
The method according to claim 1 or 2,
The scribing of the stepped region of the second panel is started from the corner of the stepped portion toward the other end of the second panel.
The method according to claim 1 or 2,
The scribing of the stepped region of the second panel proceeds toward the corner of the stepped portion from the other end of the second panel.
The method according to claim 1 or 2,
And a scribing line is not formed from the corner of the stepped portion to the radius of the scribing wheel in the second panel.
The method of claim 5,
The primary crack formed on the second panel constituting the stepped portion and the primary crack formed on the bottom of the second panel is scribing method of the brittle cemented panel having a stepped portion, characterized in that meet each other when advancing the second crack.
The method according to claim 1 or 2,
And prior to descending the scribing wheel, further comprising determining a starting position of the stepped portion using the inputted distance data.
The method according to claim 1 or 2,
And before the descending of the scribing wheel, further comprising the step of determining the starting position of the stepped part by detecting the stepped part from the camera or the sensor.

KR1020100089525A 2010-09-13 2010-09-13 Scribing method of assembled brittle substrates having steps KR101696719B1 (en)

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KR101696719B1 KR101696719B1 (en) 2017-01-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220084737A (en) * 2020-12-14 2022-06-21 한국미쯔보시다이아몬드공업(주) Scribing method for bonded brittle substrate with terminal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006154254A (en) * 2004-11-29 2006-06-15 Optrex Corp Method for manufacturing liquid crystal display panel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006154254A (en) * 2004-11-29 2006-06-15 Optrex Corp Method for manufacturing liquid crystal display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220084737A (en) * 2020-12-14 2022-06-21 한국미쯔보시다이아몬드공업(주) Scribing method for bonded brittle substrate with terminal

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