KR101803967B1 - Cutting wheel for liquid crystal display panel, method of cutting liquid crystal display panel and method of fabricating liquid crystal display device - Google Patents
Cutting wheel for liquid crystal display panel, method of cutting liquid crystal display panel and method of fabricating liquid crystal display device Download PDFInfo
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- KR101803967B1 KR101803967B1 KR1020100108376A KR20100108376A KR101803967B1 KR 101803967 B1 KR101803967 B1 KR 101803967B1 KR 1020100108376 A KR1020100108376 A KR 1020100108376A KR 20100108376 A KR20100108376 A KR 20100108376A KR 101803967 B1 KR101803967 B1 KR 101803967B1
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- 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
A cutting wheel of a liquid crystal display panel of the present invention, a method of cutting a liquid crystal display panel, and a method of manufacturing a liquid crystal display device incorporate an edge scribe technique to implement a narrow bezel of a panel. While the panel is cut by applying a double-edged wheel.
The present invention provides the effect of shortening the processing time and reducing the failure failure and securing the yield.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting wheel of a liquid crystal display panel, a method of cutting a liquid crystal display panel, and a method of manufacturing a liquid crystal display panel, and more particularly to a method of cutting a liquid crystal display panel A cutting method of a liquid crystal display panel, and a method of manufacturing a liquid crystal display device.
2. Description of the Related Art Generally, a liquid crystal display device is provided with a display device (not shown) which can display a desired image by individually supplying data signals according to image information to liquid crystal cells arranged in a matrix form and adjusting the light transmittance of the liquid crystal cells. to be.
To this end, the liquid crystal display device includes a liquid crystal display panel in which pixels are arranged in a matrix form, and a driving circuit for driving the pixels.
The liquid crystal display panel may have a structure in which thin film transistor array substrates are formed on a mother substrate having a large area, color filter substrates are formed on a separate mother substrate, A plurality of liquid crystal display panels are formed at the same time to improve the yield. Therefore, a step of cutting the unit liquid crystal display panel is required.
In general, the cutting of the unit liquid crystal display panel includes a step of forming a groove having a predetermined depth on the surface of the mother substrate by using a cutting wheel and a step of cutting the liquid crystal display panel by propagating a crack from the groove through an external impact Lt; / RTI > The cutting process of the unit liquid crystal display panel will be described in detail with reference to the accompanying drawings.
1 is an exemplary view showing a schematic planar structure of a unit liquid crystal display panel in which a thin film transistor array substrate and a color filter substrate are opposed to each other.
1, a liquid crystal display panel includes an
The
Although
The
A cell gap is provided so that the thin film
FIG. 2 is a view illustrating a cross-sectional structure of a liquid crystal display panel according to an embodiment of the present invention; FIG. 2 is a cross-sectional view illustrating a liquid crystal display panel according to an embodiment of the present invention;
Referring to FIG. 2, the unit liquid crystal display panels are formed such that one side of the thin film
The
In addition, each of the unit liquid crystal display panels is appropriately disposed so as to utilize the first and
After the
3 is a cross-sectional view for explaining a general liquid crystal display panel cutting method.
As shown in the drawing, a liquid crystal display panel in which a
At this time, the
The thin film
The thin film transistor includes a
As described above, a general liquid crystal display panel having such a structure has a problem in implementing a narrow bezel of a liquid crystal display panel as a result of cutting at a position spaced a considerable distance from an actual pattern.
In addition, there is a problem that a tact time is long when a single wheel is cut as in the present case.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a cutting wheel of a liquid crystal display panel in which a narrow bezel of a liquid crystal display panel is implemented by adopting an edge scribe technique, And a method of manufacturing a liquid crystal display device.
Another object of the present invention is to provide a cutting wheel of a liquid crystal display panel, a method of cutting a liquid crystal display panel, and a manufacturing method of a liquid crystal display device by cutting a liquid crystal display panel by applying a double-edged wheel, .
Other objects and features of the present invention will be described in the following description of the invention and claims.
In order to achieve the above object, a cutting wheel of a liquid crystal display panel according to the present invention includes a through hole provided at a central portion for receiving a support shaft, and a plurality of through holes provided on both sides of the support shaft, And spacing adjusting means provided between the first blade and the second blade for adjusting the gap corresponding to the gap between the adjacent patterns of the neighboring cells, .
In this case, the gap adjusting means may include a plurality of gap adjusting means having a predetermined thickness.
At this time, the cutting wheel and the gap adjusting means are integrally formed by sintering.
The cutting wheel is manufactured by inserting a first blade and a second blade into the support shaft.
And the shape of the cutting wheel is formed into a double-edged shape of the first blade and the second blade and inserted into the support shaft.
A method of cutting a liquid crystal display panel according to the present invention comprises the steps of forming a predetermined dummy pattern on edge surfaces of a panel region of a first mother substrate and a second mother substrate on which a plurality of panel regions are arranged, Forming a seal pattern between the predetermined dummy patterns of the second mother substrate, and then attaching the first mother substrate and the second mother substrate to each other to form a plurality of liquid crystal display panels in the panel region .
According to another aspect of the present invention, there is provided a method of cutting a liquid crystal display panel, comprising: forming a first blade and a second blade on an upper portion of a mother board of the first and second mother boards, A step of disposing a cutting wheel, adjusting an interval between the first blade and the second blade in correspondence with an interval between the actual patterns of the liquid crystal display panels adjacent to each other, And separating the outer edge of the seal pattern of each of the neighboring liquid crystal display panels into a plurality of unit liquid crystal display panels using the second blade.
At this time, in the method of cutting the liquid crystal display panel according to the present invention, the irregularities by the predetermined dummy pattern are formed on the surfaces of the first mother substrate and the second mother substrate which are in contact with the seal pattern, And the combined force between the mother board and the second mother board increases.
The method of manufacturing a liquid crystal display of the present invention includes the steps of: advancing a color filter process on a first mother substrate on which a plurality of panel regions are arranged, and performing an array process on a second mother substrate on which a plurality of panel regions are arranged; Forming a predetermined dummy pattern on edge surfaces of the panel region of the first mother substrate and the second mother substrate when the filter process and the array process are performed, A step of forming an alignment film on the surface of the second mother substrate, a step of rubbing the alignment film, a step of forming a seal between the predetermined dummy patterns of the first mother substrate and the second mother substrate, And forming a plurality of liquid crystal display panels in the panel region by laminating the first mother substrate and the second mother substrate after forming the pattern.
At this time, in the method of manufacturing a liquid crystal display device according to the present invention, a cutting wheel composed of a first blade and a second blade is disposed on the upper part of one of the first and second mother boards, And cutting the outer edge of the seal pattern of each of the neighboring liquid crystal display panels using a second blade so as to separate the plurality of unit liquid crystal display panels into a plurality of unit liquid crystal display panels, And the unevenness of the predetermined dummy pattern is formed on the surface of the second mother substrate to increase the combined force between the seal pattern and the first mother substrate and the second mother substrate.
At this time, the liquid crystal is dripped onto any one of the first and second mother board, and the seal pattern is formed on the other mother board.
At this time, the mother board on which the liquid crystal is dropped and the mother board on which the thread pattern is formed are attached.
And disposing an alignment key on an opposite liquid crystal display panel on which the cutting wheel is not located.
The cutting edges of the seal patterns of the neighboring liquid crystal display panels are simultaneously cut at the upper and lower sides by applying all of the cutting wheels to the upper and lower sides of the liquid crystal display panels.
And forming a dummy pattern on the color filter substrate and the array substrate located above and below the seal pattern.
At this time, curvatures are formed on the surface of the color filter substrate and the array substrate which are in contact with the seal pattern, so that the combined force between the seal pattern and the liquid crystal display panel is increased.
As described above, the cutting wheel of the liquid crystal display panel, the method of cutting the liquid crystal display panel, and the method of manufacturing the liquid crystal display device according to the present invention are effective in reducing the defective failure occurring in application of the yarn- Lt; / RTI >
The cutting wheel of the liquid crystal display panel, the method of cutting the liquid crystal display panel, and the method of manufacturing the liquid crystal display device according to the present invention can reduce the margin outside the yarn pattern by introducing the edge-scribe technique, do.
A cutting wheel of a liquid crystal display panel, a method of cutting a liquid crystal display panel, and a method of manufacturing a liquid crystal display device according to the present invention provide an effect of reducing a processing time by cutting a liquid crystal display panel by applying a double-
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a schematic planar structure of a unit liquid crystal display panel in which a thin film transistor array substrate and a color filter substrate are opposed to each other.
FIG. 2 is a cross-sectional view illustrating a cross-sectional structure of a liquid crystal display panel according to an embodiment of the present invention; FIG.
3 is a sectional view for explaining a general liquid crystal display panel cutting method.
Figures 4A and 4B are cross-sectional views illustrating edge scribe techniques.
5 is a cross-sectional view schematically showing a structure of a cutting wheel according to an embodiment of the present invention.
6 is a cross-sectional view schematically showing the structure of a cutting wheel according to another embodiment of the present invention;
FIG. 7 is an enlarged perspective view of a cutting wheel according to another embodiment of the present invention shown in FIG. 6; FIG.
8 is a cross-sectional view illustrating a method of cutting a liquid crystal display panel according to an embodiment of the present invention.
9 is a cross-sectional view illustrating a method of cutting a liquid crystal display panel according to another embodiment of the present invention.
10 is a flow chart sequentially showing a method of manufacturing a liquid crystal display device according to an embodiment of the present invention.
11 is a flowchart sequentially illustrating a method of manufacturing a liquid crystal display device according to another embodiment of the present invention.
Hereinafter, preferred embodiments of a cutting wheel of a liquid crystal display panel, a method of cutting a liquid crystal display panel, and a method of manufacturing a liquid crystal display device according to the present invention will be described in detail with reference to the accompanying drawings.
On the other hand, when a seal on scribe technique is used in order to realize a narrow bezel having a bezel width of 1 mm or less in a thread pattern, a thread pattern is positioned under the scribe line The breakage of the liquid crystal display panel may fail due to a poor cutting. In addition, when a penett wheel is applied for cutting, the rigidity of the liquid crystal display panel is weakened and a problem occurs in the product. Therefore, it is difficult to use a wheel that is easily cut like the penet wheel.
On the contrary, in the present invention, the process time is maintained as usual using a double-edged wheel, and the cutting process is performed by applying an edge scribe technique other than the seal-on-scribe to secure the rigidity of the liquid crystal display panel While it is possible to reduce the failure failure rate.
4A and 4B are cross-sectional views illustrating an edge scribe technique.
4A and 4B, in the edge-scribing technique of the present invention, the edge of the pixel portion shown by an arrow, that is, the outer edge of the
In this case, the liquid crystal display panel according to the embodiment of the present invention is formed by attaching the
The
The thin film
The thin film transistor includes a
As described above, according to the liquid crystal display panel according to the embodiment of the present invention configured as described above, when the edge of the
In this case, after the
At this time, in the case of the present invention, since the double-edged wheel is used instead of the single wheel, the tact time can be reduced, and a yarn-on-scribe process is also possible. Therefore, even if the yarn is twisted The cutting can be performed normally. Hereinafter, the cutting wheel according to the present invention will be described in detail with reference to the drawings.
FIG. 5 is a cross-sectional view schematically showing the structure of a cutting wheel according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view schematically showing a structure of a cutting wheel according to another embodiment of the present invention.
7 is an enlarged perspective view of a cutting wheel according to another embodiment of the present invention shown in FIG.
In this case, the cutting wheel of FIG. 6 is substantially the same as the structure of the cutting wheel of FIG. 5 except that a gap adjusting means is inserted between the two blades.
5 to 7, the
It is preferable that the
In this case, as described above, a predetermined gap adjusting means 177 may be inserted between the
In this way, if scribing lines neighboring each other due to design or process reasons need to be distanced from each other, adjustment can be made by inserting a gap adjusting means 177 between the
At this time, if necessary, the
The
At this time, if necessary, a servo motor may be installed to adjust the interval between the
Although not shown in the drawing, the fixing of the two
The
The
As described above, according to the present invention, it is possible to reduce the process time by applying the double-edged wheel and to reduce the failure failure occurring in the seal-on-scribing process by cutting the outer edge of the seal pattern, And the defective rate can be reduced.
That is, in the conventional cutting process, when the cutting is performed twice using a single wheel, the tack time becomes longer and the number of breaks increases. In contrast, according to the present invention, it is possible to reduce the number of times of scribing and the number of braking by disposing two blades and cutting the neighboring cells at a time. As a result, the tack time can be reduced and stable fairness can be ensured.
8 is a cross-sectional view illustrating a method of cutting a liquid crystal display panel according to an embodiment of the present invention.
8 is a cross-sectional view schematically showing a cross-sectional structure of a second mother substrate on which array substrates are formed and a first mother substrate on which color filter substrates are formed to form a plurality of liquid crystal display panels. In particular, B cell) shown in FIG.
As shown in the drawing, the liquid crystal display panel according to the embodiment of the present invention is formed by attaching a
The
The thin film
The thin film transistor includes a
In order to separate the liquid crystal display panels thus constructed into a plurality of unit liquid crystal display panels, the above-described double-edged wheel according to the present invention is used. At this time, the edges of the pixel portions shown by arrows, 260 are cut using the first and second blades of a cutting wheel (not shown), respectively, thereby realizing the narrow bezel of the liquid crystal display panel and effectively reducing the process time.
At this time, the
In addition, both the top and bottom surfaces of the liquid crystal display panel may be simultaneously cut by applying the double-edged wheel to both the top and bottom of the liquid crystal display panel at the time of cutting using the double-edged wheel.
If the upper and lower surfaces of the liquid crystal display panel in contact with the thread pattern are bent, the joint force between the thread pattern and the liquid crystal display panel can be increased. This will be described in detail with reference to FIG.
9 is a cross-sectional view illustrating a method of cutting a liquid crystal display panel according to another embodiment of the present invention.
As shown in the figure, a liquid crystal display panel according to another embodiment of the present invention is formed by attaching a
The
The thin film
The thin film transistor includes a
The liquid crystal display panel according to another embodiment of the present invention having the above-described structure may include a
The edges of the pixel portions shown by the arrows in the same manner, that is, the outer edges of the
At this time, the
In addition, both the top and bottom surfaces of the liquid crystal display panel may be simultaneously cut by applying the double-edged wheel to both the top and bottom of the liquid crystal display panel at the time of cutting using the double-edged wheel.
Hereinafter, a method of manufacturing a liquid crystal display device using the above-described method of cutting a liquid crystal display panel will be described in detail with reference to the drawings.
FIG. 10 is a flowchart sequentially illustrating a manufacturing method of a liquid crystal display device according to an embodiment of the present invention, and FIG. 11 is a flowchart sequentially illustrating another manufacturing method of a liquid crystal display device according to another embodiment of the present invention.
10 shows a method of manufacturing a liquid crystal display device in the case of forming a liquid crystal layer by a liquid crystal injection method, and FIG. 11 shows a method of manufacturing a liquid crystal display device in the case of forming a liquid crystal layer by a liquid dropping method.
The manufacturing process of the liquid crystal display device can be largely divided into a driving element array process for forming driving elements on the lower array substrate, a color filter process for forming a color filter on the upper color filter substrate, and a cell process.
First, a plurality of gate lines and data lines arranged in an array substrate and defining pixel regions are formed by an array process, and thin film transistors, which are driving elements connected to the gate lines and the data lines, are formed in each of the pixel regions (S101 ). In addition, a pixel electrode connected to the thin film transistor through the array process and driving the liquid crystal layer as a signal is applied through the thin film transistor is formed.
In addition, a color filter layer composed of sub-color filters of red, green, and blue and a common electrode are formed on the color filter substrate by a color filter process (S103). At this time, when an in-plane switching (IPS) liquid crystal display device is manufactured, the common electrode is formed on the array substrate on which the pixel electrode is formed through the array process.
Then, after aligning films are printed on the color filter substrate and the array substrate, alignment control force or surface fixing force (that is, pretilt angle and orientation) is applied to the liquid crystal molecules of the liquid crystal layer formed between the color filter substrate and the array substrate Direction) of the alignment film is provided (S102, S104).
After the rubbing process, the color filter substrate and the array substrate are inspected for defects of the alignment layer through an alignment film tester, as shown in FIGS. 10 and 11 (S105).
If the rubbing is not uniform, the degree of alignment of the liquid crystal molecules is not spatially constant and locally causes defects indicating different optical characteristics.
Such methods of inspecting the rubbing defect include a primary inspection for inspecting the surface of the applied alignment film after the alignment film is applied for the presence or absence of stains, streaks, or pin holes, and the like for checking the uniformity of the surface of the alignment film rubbed after rubbing, there is a secondary inspection to check for the presence of scratches or the like.
At this time, the steam tester can be used as the alignment film tester. Hereinafter, the steam tester will be described in detail.
The steam inspecting apparatus includes a steam generating device inside thereof. The steam generating device is exposed to a surface on which the orientation film of the mother substrate is formed, and then the steam is inspected. Then, the steam inspecting device displays irregularities such as color change, darkness difference, Is observed through the observation equipment to check the uniformity of the alignment layer. As described above, the steam tester can improve the process yield because the inspection process is simple and the inspected substrate is not damaged.
The alignment film inspection using the steam tester is performed in the following order.
First, the mother substrate on which the alignment film is formed is placed on the steam generator. At this time, the mother board is installed to be inclined at a predetermined angle, for example, about 40 to 50 degrees, so that the mother board and the observation thereof can be easily directed toward the steam generator.
The steam generator generates steam by heating the distilled water to a predetermined temperature, for example, about 80 to 100 ° C, thereby causing the orientation film of the mother substrate to be steadily smoothed.
The uniformity of the orientation film is confirmed by observing the unevenness such as the color change of the mother board, the darkness difference, or the formation of water droplets by observing the naked eye of the mother board on the opposite side using the naked eye or observation equipment, for example, a camera device.
In the above inspection, fine defects of the alignment film and contamination by impurities can be inspected. In the above, the inspection is performed after the rubbing process but the inspection may be performed before the rubbing process.
As shown in FIG. 10, a spacer for keeping the cell gap constant is formed on the array substrate after the alignment film inspection, and a sealing material is applied to the outer frame portion of the color filter substrate. (S106, S107, and S108). At this time, the spacer may be a ball spacer by a scattering method, or may be a column spacer by patterning.
On the other hand, the color filter substrate and the array substrate are composed of a large-sized mother substrate. In other words, since a plurality of panel regions are formed on a large-sized mother substrate, and thin film transistors and color filter layers, which are driving elements, are formed in each of the panel regions, in order to manufacture a single liquid crystal display panel, It is necessary to cut and process the mother substrate by using the mother substrate (S109).
Then, liquid crystal is injected through the liquid crystal injection port into each liquid crystal display panel processed as described above, the liquid crystal injection hole is sealed to form a liquid crystal layer, and each liquid crystal panel is inspected to produce a liquid crystal display device (S110, S111 ).
At this time, the liquid crystal is injected by a vacuum injection method using a pressure difference. In the vacuum injection method, the liquid crystal injection port of the unit liquid crystal display panel separated from the large-sized mother substrate is filled with liquid crystal in a chamber The liquid crystal is injected into the liquid crystal display panel by a pressure difference between the inside and the outside of the liquid crystal display panel. When the liquid crystal is filled in the liquid crystal display panel, Thereby forming a liquid crystal layer of the liquid crystal display panel. Accordingly, when the liquid crystal layer is formed on the liquid crystal display panel through the vacuum injection method, a part of the seal pattern should be opened to have the function of the liquid crystal injection hole.
However, the vacuum injection method as described above has the following problems.
First, the time required to fill the liquid crystal display panel with the liquid crystal is very long. In general, since a bonded liquid crystal display panel has a gap of several micrometers on an area of several hundreds cm 2, the injection amount of liquid crystal per unit time is very small even if a vacuum injection method using a pressure difference is applied. For example, when a liquid crystal display panel of about 15 inches is manufactured, it takes about 8 hours to fill the liquid crystal, so that it takes a lot of time to manufacture the liquid crystal display panel, and productivity is lowered. Further, as the size of the liquid crystal display panel is increased, the time required for filling the liquid crystal becomes longer and the filling failure of the liquid crystal is generated. As a result, the liquid crystal display panel can not be increased in size.
Second, the consumption of liquid crystal is high. Generally, the amount of liquid crystal injected into a liquid crystal display panel is very small compared to the amount of liquid crystal filled in the container, and when the liquid crystal is exposed to the atmosphere or a specific gas, it reacts with the gas and deteriorates. Therefore, even if the liquid crystal filled in the container is filled in the plurality of liquid crystal display panels, a large amount of liquid crystal remaining after filling is discarded. As a result, expensive liquid crystal is discarded and the cost of the liquid crystal display panel is increased as a result This weakens the price competitiveness of the product.
In order to overcome the problem of the vacuum injection method as described above, a dropping method can be applied.
As shown in FIG. 11, after the alignment film inspection (S105) is completed, a seal pattern is formed on the color filter substrate and a liquid crystal layer is formed on the array substrate (S106 ', S107').
The dropping system dispenses liquid crystal on an image display area of a large-area first mother substrate on which a plurality of array substrates are arranged or a second mother substrate on which a plurality of color filter substrates are arranged by using a dispenser And the liquid crystal is uniformly distributed over the entire image display area by the pressure for attaching the first and second mother substrates to each other to form a liquid crystal layer.
Therefore, when the liquid crystal layer is formed on the liquid crystal display panel through the dropping method, the seal pattern should be formed in a closed pattern surrounding the periphery of the pixel region so as to prevent the liquid crystal from leaking out of the image display region.
The dropping method can drop the liquid crystal in a shorter time than the vacuum injection method, and even when the liquid crystal display panel is enlarged, the liquid crystal layer can be formed very quickly.
In addition, since only a necessary amount of liquid crystal is dropped onto the substrate, it is possible to prevent an increase in the price of the liquid crystal display panel due to the disposal of expensive liquid crystal such as a vacuum injection method, thereby enhancing the price competitiveness of the product.
Thereafter, the first mother substrate and the second mother substrate are bonded together by applying a pressure in a state in which the first mother substrate and the second mother substrate, to which the liquid crystal is dropped and the sealing material is coated, are aligned, The liquid crystal dropped by the application of the pressure is uniformly spread over the entire liquid crystal display panel (S108 '). By this process, a plurality of liquid crystal display panels having liquid crystal layers are formed on the first and second large-sized mother substrate, and the glass substrate is processed and cut by using the above-described cutting method and cutting wheel, The liquid crystal display device is manufactured by separating the liquid crystal display panel by the display panel and inspecting each liquid crystal display panel (S109 ', S110').
While a great many are described in the foregoing description, it should be construed as an example of preferred embodiments rather than limiting the scope of the invention. Therefore, the invention should not be construed as limited to the embodiments described, but should be determined by equivalents to the appended claims and the claims.
105 to 305:
160 to 360: yarn pattern 170: cutting wheel
175a, 175b: blade 177:
290,390: Align key 380,385: Dummy pattern
Claims (16)
A first blade and a second blade provided on both sides of the support shaft for simultaneously cutting outer edges of the thread patterns of neighboring cells; And
And interval adjusting means provided between the first blade and the second blade for adjusting a gap corresponding to a gap between the thread patterns of the neighboring cells,
Wherein the gap adjusting means is constituted by a plurality of gap adjusting means having a predetermined thickness.
After forming a seal pattern between the predetermined dummy patterns of the first mother substrate and the second mother substrate, the first mother substrate and the second mother substrate are bonded together to form a plurality of liquid crystal display panels ;
Disposing a cutting wheel made up of a first blade and a second blade on the upper portion of one of the first and second mother boards, wherein a gap adjusting means is provided between the first and second mother boards;
Adjusting an interval between the first blade and the second blade in correspondence with an interval between the actual patterns of the adjacent liquid crystal display panels; And
And cutting the outer edge of the seal pattern of each of the neighboring liquid crystal display panels using a first blade and a second blade of the cutting wheel into a plurality of unit liquid crystal display panels,
Wherein a surface of the first mother substrate and the surface of the second mother substrate which are in contact with the seal pattern is provided with concavities and convexities formed by the predetermined dummy pattern to define an unity between the seal pattern and the first mother substrate, And the number of the liquid crystal display panels is increased.
A cutting blade having a first blade and a second blade is disposed on one of the first and second mother glass plates, and the first blade and the second blade of the cutting wheel are used to move the adjacent liquid crystal display panel And dividing the outer edge of the seal pattern into a plurality of unit liquid crystal display panels,
Wherein a surface of the first mother substrate and the surface of the second mother substrate which are in contact with the seal pattern is provided with concavities and convexities formed by the predetermined dummy pattern to define an unity between the seal pattern and the first mother substrate, And the number of the liquid crystal display devices is increased.
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| KR1020100108376A KR101803967B1 (en) | 2010-11-02 | 2010-11-02 | Cutting wheel for liquid crystal display panel, method of cutting liquid crystal display panel and method of fabricating liquid crystal display device |
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| KR101803967B1 true KR101803967B1 (en) | 2017-12-04 |
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| CN104386906B (en) * | 2014-09-26 | 2017-10-10 | 南京中电熊猫平板显示科技有限公司 | Substrate breaking apparatus and method |
| CN104261665A (en) * | 2014-09-26 | 2015-01-07 | 南京中电熊猫液晶显示科技有限公司 | Device and method for cutting basal plate |
| KR102392471B1 (en) | 2015-10-16 | 2022-04-29 | 삼성디스플레이 주식회사 | Display device and method of fabricating the same |
| US11143895B2 (en) | 2019-08-22 | 2021-10-12 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display panel and display module |
| CN110596939B (en) * | 2019-08-22 | 2021-02-26 | 武汉华星光电技术有限公司 | Display panel and display module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005198A (en) | 2001-06-14 | 2003-01-08 | Hyundai Display Technology Inc | Sealing structure for liquid crystal display device and sealing method |
| JP2006030792A (en) | 2004-07-20 | 2006-02-02 | Optrex Corp | Method for manufacturing display device and mother substrate thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005198A (en) | 2001-06-14 | 2003-01-08 | Hyundai Display Technology Inc | Sealing structure for liquid crystal display device and sealing method |
| JP2006030792A (en) | 2004-07-20 | 2006-02-02 | Optrex Corp | Method for manufacturing display device and mother substrate thereof |
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