KR100303535B1 - Scribing device for lcd - Google Patents

Scribing device for lcd Download PDF

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Publication number
KR100303535B1
KR100303535B1 KR1019940001222A KR19940001222A KR100303535B1 KR 100303535 B1 KR100303535 B1 KR 100303535B1 KR 1019940001222 A KR1019940001222 A KR 1019940001222A KR 19940001222 A KR19940001222 A KR 19940001222A KR 100303535 B1 KR100303535 B1 KR 100303535B1
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South Korea
Prior art keywords
cell
diamond wheel
liquid crystal
lcd
scribing
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KR1019940001222A
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Korean (ko)
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KR950023999A (en
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김현태
강진규
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삼성에스디아이 주식회사
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    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements

Abstract

PURPOSE: A scribing device for an LCD is provided to protect a liquid crystal cell from static electricity generated when scribing processing is carried out. CONSTITUTION: A scribing device for an LCD includes a diamond wheel(30) used for cutting a liquid crystal cell, a driving motor(4) for driving the diamond wheel, and a controller(5) for controlling the driving motor. The scribing device further includes an electrification means(10) for removing static electricity, set at both sides of the diamond wheel, and a polisher(20) having the same axis as the movement direction of the wheel. The polisher is placed behind the diamond wheel. The polisher is composed of a polishing stone(22) having a ball at the face coming into contact with the cell to protect the surface of the cell, and a buffer(24). The polisher is composed of an electromotive polishing stone.

Description

엘씨디(LCD)용 스크라이브 장치Scribe for LCD

본 발명은 제작된 액정표시소자(LCD) 셀을 절단 및 분리하기 위한 스크라이브(scribe) 공정에 사용되는 스크라이브 장치에 관한 것이다.The present invention relates to a scribing apparatus used in a scribe process for cutting and separating a manufactured liquid crystal display (LCD) cell.

화상 정보시대에 있어서, 정보전달의 매체인 화상 표시장치에 많은 관심이 모아지고 있다. 이로인해 지금까지의 음극선관을 대신한 각종 평판형 표시장치가 개발되어 급속히 보급되기 시작하고 있다.In the image information age, much attention has been paid to the image display apparatus which is a medium of information transmission. As a result, various flat panel display devices, which have replaced the cathode ray tube, have been developed and are rapidly spreading.

그중에서도 박형, 경량, 저전압 구동, 저소비전력 등의 특징을 갖는 액정표시장치의 기술진전은 현저하여, 랩 톱 컴퓨터(LAP TOP COMPUTER)나 포켓 컴퓨터의 표시외에 차량 적재용, 컬러 TV 화상용으로 그 용도를 확대하고 있다.Among them, the technological progress of the liquid crystal display device, which has features such as thin, light weight, low voltage driving, and low power consumption, is remarkable, and it is used for vehicle loading and color TV image in addition to the display of a laptop top computer or a pocket computer. Is expanding.

이러한 액정표시소자는 유전 이방성을 갖는 물질이 전계상에 놓일 때 배향되는 성질을 이용하여 화상표시를 하게 한 것으로, 이의 제조 프로세스는 크게 액티브 소자를 형성하는 "어레이 제조공정"과 TFT 에레이 기판과 칼라필터 기판사이에 액정재료를 봉입해 넣는 "셀 제조공정" 및 TET 에레이, 셀 기판을 구동시키기 위해 구동 전기회로를 탑재하는 "모듈 제조공정"으로 구분할 수 있다.The liquid crystal display device displays an image using a property that is oriented when a material having dielectric anisotropy is placed on an electric field, and its manufacturing process is largely referred to as an "array manufacturing process" for forming an active element, and a TFT array substrate and a color. The "cell manufacturing process" which encloses a liquid crystal material between filter substrates, and a TET array, and the "module manufacturing process" which mounts a drive electric circuit for driving a cell substrate can be classified.

상술한 여려 제조공정중에 발생할 수 있는 문제들 가운데 수율 및 표시의 불량과 밀접한 관계를 갖는 정전기가 있다. 이러한 "정전기 문제"는, 향후 표시소자의 고품위화 추세에 따라 다시 말해, 화소의 수가 고밀도화 되어 선간 저항값이 증가함에 따라 더욱 심각한 문제점으로 대두되고 있는 실정이다.Among the problems that may occur during the various manufacturing processes described above are static electricity, which is closely related to poor yield and display. This "electrostatic problem" is a situation that is becoming more serious as the number of pixels becomes higher and the line resistance increases with the trend of higher quality of the display device in the future.

스크라이브 공정은 액정을 봉입하기전 조립, 봉착된 2매의 기판을 단개 사이즈로 각각 절단, 분리하는 공정이다. 이러한 공정에 사용되는 스크라이브 장치는 제1도에 도시한 바와같이, 다이아몬드 휠(3)과 이를 구동하기 위한 구동 모터(4)와 이를 제어하기 위한 제어부(5)로 구성되어 플레이트(1) 위에 놓여진 LCD 셀(2)을 절단하게 된다. 화소수가 고밀도화 되어감에 따라 선간 저항값의 증가에 따른 정전기의 대전을 위한 모든 쇼트 전극군이 사용된다. 액정주입 및 셀 평가 공정이후, 이 모든 쇼트 전극을 스트라이브 할때 다이아몬드 휠(3)과 접촉되는 셀(2) 표면은 다이아몬드 휠(3)과의 마찰에 의해 정전기가 발생하여 셀(2) 내면에 적층 형성된 막을 손상시켜 표시품질을 저하시키는 요인이 되고 있다.The scribing step is a step of cutting and separating the two assembled and sealed substrates into a single size before encapsulating the liquid crystal. The scribing apparatus used in this process consists of a diamond wheel 3, a driving motor 4 for driving it, and a control unit 5 for controlling it, as shown in FIG. The LCD cell 2 is cut. As the number of pixels becomes higher, all of the short electrode groups for electrostatic charging as the line resistance increases. After the liquid crystal injection and cell evaluation process, the surface of the cell 2 which is in contact with the diamond wheel 3 when striking all of the short electrodes is generated by static electricity due to friction with the diamond wheel 3 so that the surface of the cell 2 is It is a factor which degrades the display quality by damaging the film laminated | stacked on the film.

더욱이, LCD 셀의 기판은 전면 및 배면 모두 글래스로 된 절연성 기판으로 이루어져 있기 때문에, 정전기의 발생을 피할 수 없다.Moreover, since the substrate of the LCD cell is made of an insulating substrate made of glass on both the front and the back, generation of static electricity is inevitable.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 모든 쇼트 전극의 제거를 위한 스크라이브 공정시 정전기 발생으로 부터 액정 셀을 보호할 수 있는 대전수단을 구비한 LCD용 스크라이브 장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, to provide a scribing device for LCD having a charging means that can protect the liquid crystal cell from the generation of static electricity during the scribing process for the removal of all the short electrode. There is this.

상기 목적을 달성하기 위하여 본 발명은 액정 셀을 절단하기 위한 다이아몬드 휠의 양측에 정전기 제거용 대전수단을 구비하되, 이 대전수단이 셀의 접촉표면을 고려하여 셀과의 접촉면이 굴러갈 수 있는 볼형인 제전자와 완충수단으로 구성되는 것을 특징으로 한다.In order to achieve the above object, the present invention includes a charging means for removing static electricity on both sides of the diamond wheel for cutting the liquid crystal cell, the charging means is a ball that can roll the contact surface with the cell in consideration of the contact surface of the cell It is characterized in that it is composed of a type of de-energizer and a buffer means.

본 발명의 다른 특징은 상기 다이아몬드 휠의 후측에 휠의 이동방향과 같은 축을 갖는 연마용 연마수단을 더 구비하되, 이 연마수단 역시 셀의 표면을 보호하기 위하여 셀과의 접촉면이 볼 형인 연마석과 완충수단으로 구성되고, 연마 기능을 높이기 위해 자전기능을 갖는 전동형의 연마석으로 구성되는 것을 특징으로 한다.Another feature of the present invention is further provided with polishing means for polishing having the same axis as the direction of movement of the wheel on the rear side of the diamond wheel, this polishing means is also in contact with the cell to protect the surface of the cell and the cushioning cushion It is composed of a means, characterized in that it is composed of an electric grinding wheel having a rotating function to enhance the polishing function.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 보다 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

제2도는 본 발명에 의한 스크라이브 장치를 도시한 도면으로서, (A)도는 본 발명의 대전수단(10)을 나타내기 위한 스크라이브 장치의 정면도를, (B)는 본 발명의 연마수단(22)를 나타낸 스크라이브 장치의 측면도이다.2 is a view showing a scribing apparatus according to the present invention, (A) is a front view of the scribing apparatus for showing the charging means 10 of the present invention, (B) is a grinding means 22 of the present invention. It is a side view of the scribe apparatus shown.

제2도에 도시된 바와같이, 본 발명의 스크라이브 장치는 LCD 셀(2)을 지지하는 플레이트(1)와, 셀을 절단하기 위한 다이아몬드 휠 (30)과, 다이아몬드 휠(30)을 원하는 방향으로 이동하기 위한 구동모터(4)와, 구동모터(4)를 제어하기 위한 제어부(5)로 구성된다.As shown in FIG. 2, the scribing apparatus of the present invention has the plate 1 supporting the LCD cell 2, the diamond wheel 30 for cutting the cell, and the diamond wheel 30 in the desired direction. It consists of a drive motor 4 for moving and a control part 5 for controlling the drive motor 4.

그리고, 상기 다이아몬드 휠(30)의 양측에는 제2(A)도에 도시된 바와같이,다이아몬드 휠(30)과 셀(2) 표면과의 접촉에 의한 정전기 발생으로 부터 LCD 셀을 보호하기 위한 정전기 대전용 대전수단(10)이 각각 형성된다. 이때, 상기 대전수단(10)으로서, 본 발명은 셀(2)과의 마찰을 줄이고 셀 표면에 스크래치(scratch)가 일어나지 않도록 하기 위하여, 액정 셀(2)과의 접촉면은 굴러갈 수 있는 볼 형의 제전자(12)로 이루어지고 그 내부는 완충수단(14), 예를 들어 스프링이 형성되도록 하였다. 또한, 상기 제전자(12)의 바람직한 예로서, 본 발명은 저항값이 아주 낮은(약 0.5Ω이하의) 제전 PVC(polyvinyl chloride)나 구리(Cu) 등을 사용한다.In addition, as shown in FIG. 2 (A) on both sides of the diamond wheel 30, the static electricity for protecting the LCD cell from the static electricity generated by the contact between the diamond wheel 30 and the cell 2 surface. The charging means 10 for charging is formed, respectively. At this time, as the charging means 10, the present invention is to reduce the friction with the cell (2) and to prevent scratches (scratch) on the surface of the cell, the contact surface with the liquid crystal cell (2) is rolled ball type Is made of the demagnetizer 12 and its interior is such that the buffer means 14, for example a spring is formed. In addition, as a preferable example of the demagnetizer 12, the present invention uses antistatic PVC (polyvinyl chloride), copper (Cu), or the like, which has a very low resistance value (less than about 0.5?).

따라서, 스크라이브 공정시 발생되는 정전기는 LCD 셀(2)보다 상대적으로 매우 낮은 저항값을 갖는, 상기 다이아몬드 휠(30)의 좌, 우 양측에 형성된 대전수단(10)을 통하여 순간적으로 대전이 이루어지기 때문에 정전기로 부터LCD 셀을 보호할 수 있다.Therefore, the static electricity generated during the scribing process is instantaneously charged through the charging means 10 formed on both the left and right sides of the diamond wheel 30, which has a relatively lower resistance value than the LCD cell 2. This protects the LCD cell from static electricity.

또한, 상기 다이아몬드 휠(30)의 후반부에는 제2(B)도에 도시한 바와같이, 다이아몬드 휠(30)의 진행방향과 동일한 축을 갖는 연마수단(20)이 형성되어 있어, 다이아몬드 휠(30)에 의해 스크라이브된 셀(2)의 표면주위가 바로 뒤따라 오는 연마수단(20)에 의해 연마될 수 있도록 하였다. 이러한 연마수단(20) 역시 셀(2)과의 마찰을 줄이고 셀(2) 표면을 고려하여, 셀(2)과 접촉될 부위가 볼 형상을 갖는 연마석(22)으로 구성되고, 그 내부에는 완충수단(24)이 형성된다. 본 발명의 바람직한 예로서, 상기 연마수단(20)은 연마의 효율성을 높이기 위해, 자전기능을 갖는 전동형의 연마석도 가능하다.In the second half of the diamond wheel 30, as shown in FIG. 2 (B), the grinding means 20 having the same axis as the traveling direction of the diamond wheel 30 is formed, so that the diamond wheel 30 The surface circumference of the scribed cell 2 can be polished by the polishing means 20 immediately following. The polishing means 20 is also composed of abrasive stone 22 having a ball shape at the site to be in contact with the cell 2 in consideration of the surface of the cell 2 and reducing friction with the cell 2. Means 24 are formed. As a preferable example of the present invention, the polishing means 20 is also possible to the electric grinding wheel having a rotating function in order to increase the efficiency of the polishing.

이상 설명한 바와같이, 본 발명에 의하면, 스크라이브 공정시 발생되는 정전기를 다이아몬드 휠의 좌, 우 양측에 형성된 대전자를 통하여 순간적으로 대전시킴으로써 액정 셀을 정전기로 부터 보호할 수 있을 뿐만 아니라 다이아몬드 휠의 후반부에 휠과 동일한 축을 갖는 연마재를 장착함으로써 스크라이브와 연마를 동시에 실시할 수 있는 장점이 있다.As described above, according to the present invention, the electrostatic charge generated during the scribing process is instantaneously charged through the chargers formed on the left and right sides of the diamond wheel, thereby not only protecting the liquid crystal cell from static electricity, By mounting an abrasive having the same axis as the wheel, there is an advantage in that scribing and polishing can be simultaneously performed.

제1도는 종래 LCD용 스크라이브 장치를 도시한 개략도,1 is a schematic diagram showing a conventional scribe device for LCD,

제2도는 본 발명에 의한 스크라이브 장치를 도시한 도면으로서,2 is a view showing a scribe device according to the present invention,

(A)는 대전수단을 나타낸 스크라이브 장치의 정면도를,(A) is a front view of the scribe device showing the charging means,

(B)는 연마수단을 나타낸 스크라이브 장치의 측면도를 각각 나타낸다.(B) shows the side view of the scribing apparatus which showed the grinding | polishing means, respectively.

Claims (5)

액정 셀을 절단하기 위한 다이아몬드 휠(wheel)과, 이를 구동하기 위한 구동 모터와, 이를 제어하기 위한 제어부로 구성된 LCD용 스크라이브(scribe)장치에 있어서, 상기 다이아몬드 휠의 양측에 정전기 제거용 대전수단을, 상기 다이아몬드 휠의 후측에 휠의 이동방향과 동일한 축을 갖는 연마용 연마수단을 더 포함하는 것을 특징으로 하는 LCD용 스크라이브 장치.In a LCD scribe device comprising a diamond wheel for cutting a liquid crystal cell, a driving motor for driving the liquid crystal, and a control unit for controlling the liquid crystal cell, a charging means for removing static electricity is formed on both sides of the diamond wheel. And polishing means for polishing having the same axis as the moving direction of the wheel on the rear side of the diamond wheel. 제1항에 있어서, 상기 대전수단은 셀의 표면을 보호하기 위하여 셀과의 접촉면이 볼 형(ball type)인 제전자와 완충수단으로 구성됨을 특징으로 하는 LCD용 스크라이브 장치.2. The scribing device for an LCD according to claim 1, wherein said charging means is composed of a static eliminator and a buffer means having a ball type contact surface with the cell in order to protect the surface of the cell. 제2항에 있어서, 상기 제전자는 제전 PVC 또는 Cu 볼로 이루어짐을 특징으로 하는 LCD용 스크라이브 장치.The scribing apparatus for an LCD according to claim 2, wherein the static eliminator is made of antistatic PVC or Cu balls. 제1항에 있어서, 상기 연마수단은 셀의 표면을 보호하기 위하여 셀과의 접촉면이 볼 형상을 갖는 연마석과 완충수단으로 구성됨을 특징으로 하는 LCD용 스크라이브 장치.2. The scribing apparatus for an LCD according to claim 1, wherein said polishing means comprises a grinding stone and a cushioning means having a ball-shaped contact surface with the cell in order to protect the surface of the cell. 제1항에 있어서, 상기 연마수단은 자전기능을 부여하기 위한 전동형의 연마석으로 이루어짐을 특징으로 하는 LCD용 스크라이브 장치.2. The scribing apparatus for an LCD according to claim 1, wherein said polishing means is made of an electric grinding stone for imparting a rotating function.
KR1019940001222A 1994-01-24 1994-01-24 Scribing device for lcd KR100303535B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100870122B1 (en) * 2002-11-28 2008-11-25 엘지디스플레이 주식회사 cutting system and method for cutting LCD panel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362679A (en) * 1986-09-03 1988-03-18 Hitachi Ltd Scribing diamond grinding wheel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362679A (en) * 1986-09-03 1988-03-18 Hitachi Ltd Scribing diamond grinding wheel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100870122B1 (en) * 2002-11-28 2008-11-25 엘지디스플레이 주식회사 cutting system and method for cutting LCD panel

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