KR20070117183A - Scribing apparatus and method for scribing - Google Patents

Abstract

An apparatus and a method for scribing are provided to reduce a wheel replacing time by mounting plural wheels, thereby removing the necessity for wheel replacement in the scribing apparatus. A scribing apparatus comprises a holder(100), a holder rotating unit(120) for rotating the holder, plural wheels(140) installed in the holder, and a scribing unit including a holder fixing unit(160) for fixing the holder. A vertical-axis section of the holder is formed in a round or a polygon shape. The wheels are installed in the holder at the intervals. The holder rotating unit includes a bearing.

Description

SCRIBING APPARATUS AND METHOD FOR SCRIBING}

1 is a partial schematic side view of a scribe equipment according to the present invention;

Figure 2 is a schematic side view showing that the scribing means according to the invention is fixed to perform the scribe process.

3 and 4 are schematic side views of scribing means according to another embodiment of the invention.

5 is a conceptual diagram illustrating a process of manufacturing a liquid crystal display device according to the present invention.

6 is a conceptual diagram illustrating a process of cutting a thin film transistor substrate unit among LCD unit cells of the assembled substrate of FIG. 5.

FIG. 7 is a conceptual diagram illustrating forming a first color filter substrate from a second mother substrate of the assembled substrate shown in FIG. 5.

FIG. 8 is a conceptual view illustrating fabrication of a second color filter substrate from a first color filter substrate formed on the assembled substrate shown in FIG.

9 is a conceptual view illustrating a second color filter substrate manufactured in FIG. 8.

<Explanation of symbols for the main parts of the drawings>

100: holder 120: holder rotating part

140: a plurality of wheels 160: holder fixing portion

200: first mother substrate 300: second mother substrate

400: assembly board

The present invention relates to scribe equipment, and more particularly to scribe equipment equipped with a plurality of wheels.

In general, liquid crystal displays are flat panel displays that display images via liquid crystal. The liquid crystal display controls a liquid crystal in small area units to display a desired image.

The liquid crystal display device is composed of a liquid crystal display panel and a light supply device. The liquid crystal display panel controls the arrangement of liquid crystals in small area units, and the light supply device supplies light necessary for the user to recognize an image displayed on the liquid crystal display panel.

Recently, a plurality of liquid crystal display panels are formed together on a large glass substrate in order to maximize mass productivity, and are then separated by cutting the glass substrate by scribing equipment.

However, such a scribing device according to the prior art can be equipped with only one wheel in one holder, it takes time to change the wheel when using a different type of wheel during the use of the equipment. In addition, when using different types of wheels, there was a difficulty in storing and managing each wheel.

An object of the present invention is to solve the problems of the prior art described above, and to provide a scribing equipment that can reduce the wheel replacement time.

Another object of the present invention is to provide a scribe device that is easy to store and manage after using various types of wheels.

In order to achieve the above object, the present invention provides a scribe means including a holder, a holder rotating part for rotating the holder, a plurality of wheels provided in the holder, and a holder fixing part for fixing the holder. It provides a scribe equipment characterized by.

The holder may have a circular or polygonal cross section in a vertical axis, and the wheels may be provided at equal intervals in the holder.

The holder rotating part allows the holder to rotate using a bearing, and the holder fixing part is fixed to the holder to fix the holder.

In this case, the plurality of wheels may be wheels of the same type or different types.

In addition, the present invention comprises the steps of preparing a assembled substrate bonded to the first and second mother substrate; Fixing the assembly board to a base; Positioning a scribe means having a plurality of wheels on the assembly board; Selecting any one of the plurality of wheels; It provides a scribing method comprising the step of cutting the assembly substrate using the wheel selected from the plurality of wheels.

At this time, the wheel selected from the plurality of wheels is determined by the thickness of the assembly board.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the embodiments are intended to complete the disclosure of the present invention, and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you. Like reference numerals in the drawings refer to like elements.

1 is a partial schematic side view of the scribing equipment according to the present invention, and FIG. 2 is a schematic side view showing that the scribing means according to the present invention is fixed to perform a scribing process.

The scribing apparatus according to the present invention includes a holder 100, a holder rotating part 120 for rotating the holder 100, a plurality of wheels 140 provided in the holder 100 and And a scribing means including a holder fixing part 160 for fixing the holder 100. At this time, the holder 100 is coupled to the holder rotating part 120 is connected to the scribe equipment main body (not shown). In addition, the scribe body includes a drive unit and a control unit for driving the scribe means, and includes a base for fixing the object of the scribe process.

The holder 100 is for attaching the wheel 140, and in the present invention, the holder 100 in the shape of a rectangle is used. Wheels 140 are provided at each corner of the rectangular holder 100. In FIG. 1, the holder 100 according to the present invention is illustrated in a quadrangular shape, but is not limited thereto. A circular holder may be used as shown in FIG. 3. In addition, the holder 100 according to the present invention may be a polygon. For example, it may be a hexagonal holder as shown in FIG. In this case, when using the circular holder, it is preferable that the plurality of wheels are disposed at equal intervals at the corners of the circular holder to avoid interference with each other. In addition, in the case of polygons, it is preferable to provide wheels at the corners of the polygon holders to arrange the wheels at equal intervals.

The holder rotating part 120 is for rotating the holder 100 and includes a bearing. At this time, the bearing is fastened to the holder, the bearing and the scribe equipment main body is connected and fixed.

The plurality of wheels 140 are for cutting a substrate and are usually made of diamond. In the present invention, the wheel 140 includes first to fourth wheels 140a, 140b, 140c, and 140d, and different types of wheels are used. In other words, different types of wheels are used according to the thickness of the substrate during the scribing process, and thus different types of wheels are used. However, the present invention is not limited thereto, and a wheel of the same type may be provided and the next wheel may be used when the wheel is worn. In addition, the present invention includes four wheels including the first to fourth wheels 140a, 140b, 140c, and 140d, but is not limited thereto. That is, the scribe equipment according to the present invention may be provided with two or more wheels.

The holder fixing part 160 is for fixing the holder 100, and includes the first and second holder fixing parts 161 and 162 in the present invention.

The first and second holder fixing parts 161 and 162 are manufactured in a shape corresponding to the holder 100 to fix the rectangular holder 100. When the first wheel 140a is used, the second wheel 140b is positioned on the opposite side thereof, and the third and fourth wheels 140c and 140d are disposed between the first and second wheels 140a and 140b. ) Will be located. In order to fix the holder 100 when the first wheel 140a is used, an area in which the third and fourth wheels 140c and 140d are provided must be fixed. Therefore, in the present invention, the first and second holder fixing parts 161 and 162 are manufactured in a shape corresponding to the area of the holder 100 in which the third and fourth wheels 140c and 140d are provided, and thus, are shown in FIG. 2. As described above, the first and second holder fixing parts 161 and 162 are fixed to the holder 100 to fix the holder 100.

In addition, the first and second holder fixing parts 161 and 162 include holder fixing body bodies 161a and 162a and groove parts 161b and 162b, respectively. The grooves 161b and 162b are for protecting the wheel 140 when the first and second holder fixing parts 161 and 162 are fixed to the holder 100. However, the shapes of the first and second holder fixing parts 161 and 162 are not limited thereto, and may be any shape as long as the holder 100 can be fixed. That is, the first and second holder fixing parts 161 and 162 may be manufactured in the form of two sticks, respectively, without forming the grooves 161b and 162b. In this case, the first and second holder fixing parts 161 and 162 may be formed in contact with the holder 100 to correspond to the shape of the holder 100 so as to be in contact with the holder 100. . In addition, the present invention has been described with reference to the two holder fixing portion consisting of the first and second holder fixing portion (161, 162) as an example, but is not limited to this holder holder if the holder 100 can be fixed The number of may be two or less or two or more.

At this time, the present invention having a structure having a plurality of wheels as described above in the scribing process selects the wheel and the first and second holder fixing parts (161, 162) in close contact with the holder 100 and then scribe process Do this. In addition, when using other types of wheels during the scribing process, the first and second holder fixing parts 161 and 162 may be removed from the holder 100 and replaced with the necessary wheels, and then the first and second holder fixing parts may be used again. (161, 162) is fixed to the holder 100 in close contact and performs a scribe process.

By the above structure, the present invention can minimize the wheel replacement time due to wheel change by mounting a plurality of wheels to one holder. In addition, there is an advantage that the storage and management is very easy when using different types of wheels.

Hereinafter, a scribe / crave process according to the present invention will be described with reference to the drawings.

First, a process of manufacturing a liquid crystal display device according to the present invention will be described with reference to FIG. 5. 5 is a conceptual diagram illustrating a process of manufacturing a liquid crystal display according to the present invention.

Referring to FIG. 5, for example, two thin film transistor substrate parts 210 and 220 having a first area are formed in the first mother substrate 200. Three or more thin film transistor substrate parts may be simultaneously formed according to the size of the first mother substrate 200 or the size of the thin film transistor substrate parts 210 and 220.

The thin film transistor substrate units 210 and 220 include pixel electrodes and thin film transistors.

The pixel electrode is arranged in a matrix form on the thin film transistor substrate 210 and 220. When the resolution of the thin film transistor substrate parts 210 and 220 is 1024 × 768, for example, the number of pixel electrodes included in the thin film transistor substrate parts 210 and 220 is 1024 × 768 × 3.

The thin film transistor formed on the thin film transistor substrate 210 and 220 includes a gate electrode, a drain electrode, a channel layer, and a source electrode. One thin film transistor is connected to each pixel electrode. Gate lines are commonly connected to the gate electrodes of the thin film transistors belonging to one row of the thin film transistors arranged in a matrix form, and a data line is connected to the source electrodes of the thin film transistors belonging to one column of the thin film transistors arranged in a matrix form. The drain electrode is connected to the pixel electrode.

Hereinafter, the gate line and the data line to which the driving signal is applied from the outside will be referred to as a signal line. A pad (not shown) is formed at an end of the signal line to apply a driving signal.

Color filter substrates 310 and 320 are formed on the second mother substrate 300 in the same number as the thin film transistor substrates 210 and 220 formed on the first mother substrate 200. The color filter substrate parts 310 and 320 have a second area smaller than the first area of the thin film transistor substrate parts 210 and 220.

The color filter substrate units 310 and 320 include a color filter and a common electrode. The color filter is disposed at a position corresponding to each pixel electrode of the thin film transistor substrate 210 and 220, and the common electrode is formed over the entire area of the color filter substrate 310 and 320 so as to cover the color filter. The area of the color filter substrates 310 and 320 is slightly smaller than the thin film transistor substrates 210 and 220 in order to expose signal lines of the thin film transistor substrates 210 and 220.

The thin film transistor substrate parts 210 and 220 formed on the first mother substrate 200 face the color filter substrate parts 310 and 320 formed on the second mother substrate 300. The edges of the color filter substrate parts 310 and 320 are aligned with the edges of the thin film transistor substrate parts 210 and 220.

On the other hand, the thin film transistor substrate portions 210 and 220 formed on the first mother substrate 200 and the color filter substrate portions 310 and 320 formed on the second mother substrate 300 are aligned so that the pixel electrodes and the color filters are aligned. After that, it is sealed by the liquid crystal sealing member. The liquid crystal is injected between the thin film transistor substrate portions 210 and 220 and the color filter substrate portions 310 and 320 sealed by the liquid crystal sealing member.

An assembly of the first mother substrate 200 on which the thin film transistor substrate portions 210 and 220 are formed and the second mother substrate 300 on which the color filter substrate portions 310 and 320 are formed is called an assembly substrate 400. It will be called. In addition, the thin film transistor substrates 210 and 220 and the color filter substrates 310 and 320 facing each other among the assembled substrates 400 will be referred to as LCD unit cells 410 and 420. The LCD unit cells 410 and 420 disposed on the assembly board 400 are separated from the assembly board 400 and manufactured as a liquid crystal display panel.

6 is a conceptual diagram illustrating a process of cutting a thin film transistor substrate unit among LCD unit cells of the assembled substrate of FIG. 5.

Referring to FIG. 6, the assembly board 400 is fixed to the assembly board fixing part, that is, the base 500, so that the thin film transistor substrate parts 210 and 220 face upwards. The base 500 is fixed to prevent the assembly substrate 400 from moving by vacuum pressure. In addition, the first and second holder fixing part 161, which rotates the holder 100 shown in FIG. 1 to determine the wheel 140 suitable for the thickness of the first mother substrate 200 to the base 500, 162 is fixed to the holder 100 to fix the holder. In this case, the first wheel 140a is selected as the wheel 140 suitable for the thickness of the first mother substrate 200.

Subsequently, the first wheel 140a rotates and moves to form first and second scribe lines 251 along edges of the thin film transistor substrates 210 and 220 of the first mother substrate 200 of the assembled substrate 400. , 252 is formed.

Next, a brake process for separating the first mother substrate 200 according to the first and second scribe lines 251 and 252 is performed. The brake process impacts the first mother substrate 200 on which the first and second scribe lines 251 and 252 are formed, and the first mosquito is removed from the first and second scribe lines 251 and 252 by the impact. The crack propagates in the depth direction of cutting the plate 200. The thin film transistor substrate parts 210 and 220 are cut from the first mother substrate 200 by cracks propagated in the depth direction. That is, since the first mother substrate 200 may not be separated by the first and second scribe lines 251 and 252 formed during the scribing process, the first and second scribe lines may be formed using a break bar (not shown). The first mother substrate 200 is cut and separated by applying a force to the opposite side of the first mother substrate 200 on which 251 and 252 are formed. In this case, the brake process may be omitted when the non-normal wheel is used as the first wheel 140a.

As described above, when the scribing process is performed using the penetrated wheel at the end of the wheel, the first mother substrate 200 is almost separated only by the scribe line formed by the scribe process. The brake process of separating the first mother substrate 200 by applying a force to the rear surface of the 200 may be omitted. Therefore, when the penet wheel is used, the brake process can be omitted, thereby shortening the process time.

Hereinafter, the thin film transistor substrate parts 210 and 220 cut from the LCD unit cells 410 and 420 of the first mother substrate 200 will be referred to as thin film transistor substrates 210 and 220, respectively.

FIG. 7 is a conceptual diagram illustrating the formation of a first color filter substrate from a second mother substrate of the assembled substrate shown in FIG. 5.

Referring to FIG. 7, in a state in which the thin film transistor substrates 210 and 220 are separated from the first mother substrate 200, the assembled substrate 400 is turned over and then fixed to the base 500 again. Although the thin film transistor substrates 210 and 220 are separated from the first mother substrate 200, the thin film transistor substrates 210 and 220 are assembled to the second mother substrate 300 by the liquid crystal sealing member. Even if 400 is turned over, the thin film transistor substrates 210 and 220 are not separated from the assembly board 400. Therefore, the assembly substrate 400 is fixed to the base 500 so that the second mother substrate 300 faces upward. In addition, after determining the wheel 140 suitable for the thickness of the second mother substrate 300 to rotate the holder 100 shown in Figure 1 to the base 500, the first and second holder fixing part 161, 162 is fixed to the holder 100 to fix the holder 100. In this case, the wheel 140 suitable for the thickness of the second mother substrate 300 will be referred to as the second wheel 140b.

In a state in which the assembly substrate 400 is fixed to the base 500, the second wheel 140b forms third and fourth scribe lines 351 and 351 on the second mother substrate 300. The third and fourth scribe lines 351 and 352 are formed along edges of the thin film transistor substrates 210 and 220 already formed on the first mother substrate 200 of the assembled substrate 300. Therefore, the inner area surrounded by the third and fourth scriberins 351 and 352 formed on the second mother substrate 300 is the same as the area of the thin film transistor substrates 210 and 220. Inside the four scribe lines 351 and 352, color filter substrate parts 310 and 320 (areas hatched in FIG. 5) having an area smaller than that of the thin film transistor substrates 210 and 220 are included. Subsequently, a slight impact is applied to the second mother substrate 300, and the third and fourth scribe lines 351 and 352 propagate cracks in the depth direction by the impact and are separated from the second mother substrate 300. .

Hereinafter, a portion separated from the second mother substrate 300 by a larger area than the color filter substrates 310 and 320 will be referred to as first color filter substrates 311 and 321.

FIG. 8 is a conceptual diagram illustrating manufacturing a second color filter substrate from the first color filter substrate formed on the assembled substrate shown in FIG. 5.

Referring to FIG. 8, a fifth scribe line 353 is formed on the outer side of the color filter substrates 310 and 320 among the first color filter substrates 311 and 321 by the second wheel 140b.

The fifth scribe line 353 is cut out of the color filter substrates 310 and 320 included in the first color filter substrates 311 and 321 so that signal lines formed on the thin film transistor substrates 210 and 220 are exposed to the outside. Along the undefined edges.

Subsequently, an impact is applied to the fifth scribe line 353 so that cracks propagate in the depth direction to the fifth scribe line 353. Accordingly, the portion of the first color filter substrates 311 and 321 covering the signal lines of the thin film transistor substrates 210 and 220 is cut to produce the second color filter substrate illustrated in FIG. 9.

In the second color filter substrate illustrated in FIG. 9, a portion of the first color filter substrates 311 and 321 illustrated in FIG. 7 covering the signal lines of the thin film transistor substrates 210 and 220 is cut.

Although described above with reference to the drawings and embodiments, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit of the invention described in the claims below You will understand.

For example, in the illustrated embodiment, the case where the thicknesses of the first mother substrate and the second mother substrate are different has been described as an example. However, the present invention is not limited thereto and the thicknesses of the first mother substrate and the second mother substrate are the same. The present invention can also be applied. In other words, if the two substrates are the same thickness, it is not necessary to use different types of wheels, but the same type of wheels are provided with a plurality of wheels, and when the wheels reach the end of their life, the holder is rotated and replaced with other wheels to shorten the wheel replacement time. can do.

As described above, the present invention can provide a scribing device that can reduce wheel replacement time by mounting a plurality of wheels so that wheel replacement is not necessary.

In addition, it is easy to store and manage after using the wheel by mounting a plurality of wheels to the scribe equipment as described above.

Claims (8)

With holder, A holder rotating part for rotating the holder; A plurality of wheels provided in the holder, Scribing means comprising a scribing means comprising a holder fixing for fixing the holder. The method according to claim 1, The holder is scribed equipment, characterized in that the longitudinal axis of the cross-section or polygon. The method according to claim 1, The wheel scribe equipment, characterized in that provided in the holder at equal intervals. The method according to claim 1, Scribe equipment, characterized in that the holder rotation comprises a bearing. The method according to claim 1, The holder fixing portion is fixed in close contact with the holder scribe equipment, characterized in that the holder is fixed. The method according to claim 1, The plurality of wheels are scribe equipment, characterized in that the wheel of the same type or different types from each other. Preparing an assembled substrate to which the first and second mother substrates are bonded; Fixing the assembly board to a base; Positioning a scribe means having a plurality of wheels on the assembly board; Selecting any one of the plurality of wheels; And cutting the assembly substrate using the wheel selected from the plurality of wheels. The method according to claim 7, The scribe method, characterized in that the selected wheel of the plurality of wheels is determined by the thickness of the assembly substrate.

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