KR930002923B1 - Making method of lcd - Google Patents

Making method of lcd Download PDF

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Publication number
KR930002923B1
KR930002923B1 KR1019900006646A KR900006646A KR930002923B1 KR 930002923 B1 KR930002923 B1 KR 930002923B1 KR 1019900006646 A KR1019900006646 A KR 1019900006646A KR 900006646 A KR900006646 A KR 900006646A KR 930002923 B1 KR930002923 B1 KR 930002923B1
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South Korea
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glass substrate
liquid crystal
cutting
crystal display
silica sand
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KR1019900006646A
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Korean (ko)
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KR910020469A (en
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최성림
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삼성전관주식회사
김정배
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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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Processing (AREA)
  • Liquid Crystal (AREA)

Abstract

The manufacturing method comprises (a) coating with silica sand the cutting part of the lower glass substrate (2) of liquid crystal display element to reflect laser beams, (b) cutting the cutting part of the upper glass substrate (1) using laser beams, (c) coating the remaining substrate interstice with silica sand, and (d) cutting the cutting part of the lower glass substrate (2) using laser beams.

Description

액정표시 소자의 제조방법Manufacturing method of liquid crystal display device

제 1 도는 종래의 액정표시 소자의 정단면도.1 is a front sectional view of a conventional liquid crystal display element.

제 2 도는 본 발명에 의한 액정표시 소자의 정단면도.2 is a front sectional view of a liquid crystal display device according to the present invention.

제 3 도는 본 발명에 따른 액정표시 소자의 제조 방법을 개략적으로 도시한 도면.3 is a view schematically showing a method of manufacturing a liquid crystal display device according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 상부 유리기판 5 : 스페이서1: upper glass substrate 5: spacer

2 : 하부 유리기판 6, 6' : 시일재2: lower glass substrate 6, 6 ': sealing material

3, 3' : 투명 도전막 7, 7' : 절단부위3, 3 ': transparent conductive film 7, 7': cutting site

4, 4' : 배향막 8, 8' : 규사4, 4 ': alignment film 8, 8': silica sand

본 발명은 2개의 유리기판에 복수개의 소자를 형성하도록 전극 패턴을 착설한 다음 대향시켜 각 소자 주변의 시일(seal)부에 시일한후, 상, 하부 유리기판의 절단부위에 규사를 코팅하고, 레이저를 이용하여 절단분할해서 복수개의 액정셀을 얻는 규사를 이용한 액정표시 소자의 제조방법에 관한 것이다.The present invention is to install the electrode pattern to form a plurality of elements on the two glass substrates and then to face each other to seal parts around each element, and then coated on the cut portion of the upper and lower glass substrates, The present invention relates to a method for manufacturing a liquid crystal display device using silica sand obtained by cutting and dividing using a laser to obtain a plurality of liquid crystal cells.

종래에는 액정셀을 큰 유리기판에서 다수개를 뽑아내기 위해서 미리 한쌍의 기판 대향면의 절단될 예정위치에 스크라이브 상처를 내거나 혹은 홈가공을 한후, 시일재에 의하여 결합하여 일체화 한것을 텅스텐이나 인조 디아몬드 등으로 된 유리칼 혹은 고속회전 숫돌 등에 의해 미리 대향면 상에 가공을 끝낸 절단될 위치에 스크라이브 상처를 내서 절단하고 있었다.Conventionally, in order to pull out a plurality of liquid crystal cells from a large glass substrate, a scribe wound or groove is formed at a predetermined position to be cut on a pair of substrate opposing surfaces, and then a combination of tungsten or artificial dia is integrated by a sealing material. The scribe wound was cut | disconnected and cut in the position to be cut | finished on the opposing surface previously by the glass knife made of monde, or a high-speed grindstone.

즉, 제 1 도의 액정표시소자 단면도에 도시한 바와같이, 상부 유리기판(11) 및 하부 유리기판(12)의 중간에 투명도전막(13)(13') 및 배향막(14)(14')가 차례로 코팅되고, 중앙으로는 스페이서(15)를 개재하여 이를 시일재(16)(16')로 봉착한 구조로 이루어진 액정표시 소자의 상부 유리기판(11) 상의 절단될 면(17)(17')에 경강(Hard steel) 예컨대, 텅스텐 혹은 인조 다이야몬드로 된 유리칼 등을 사용하여 스크라이브 상처를 낸 후, 계속해서 압력을 가해 절단 분할한다. 그러나 상기와 같은 액정 표시소자의 절단 방법은 가공 공정수가 적게 된다는 잇점이 있으나, 파단부의 형상이 불안정하게 되고, 높은 치수의 정밀도가요구되는 액정 표시소자에 대해서는 치수 정밀도가 저하되는 문제점이 있으며, 절단시 압력조절이 잘못될 경우 불량품이 발생하는 커다란 단점을 수반하고 있었다.That is, as shown in the cross-sectional view of the liquid crystal display of FIG. 1, the transparent conductive films 13, 13 ′ and the alignment films 14, 14 ′ are disposed between the upper glass substrate 11 and the lower glass substrate 12. Surfaces 17 and 17 'to be cut on the upper glass substrate 11 of the liquid crystal display device, which are coated in order, and have a structure in which the spacer 15 is sealed with the seal member 16 and 16' in the center. ), A scribe wound is made using hard steel, for example, a glass knife made of tungsten or artificial diamond, and then cut and divided by applying pressure continuously. However, the cutting method of the liquid crystal display device as described above has the advantage of reducing the number of processing steps, but there is a problem that the shape of the fracture portion becomes unstable, and the dimensional accuracy is deteriorated for the liquid crystal display device which requires high dimensional accuracy. Incorrect pressure control was accompanied by a big disadvantage of defective products.

따라서 본 발명은 상기와 같은 종래의 문제점을 개선하기 위하여, 액정 표시소자 판낼의 상, 하부 유리기판상에 규사를 일부 코팅하여 레이저를 이용 절단함으로써 적은 공정수와 높은 치수의 정밀도로 액정셀을 다수개 뽑아내기를 행할 수 있음은 물론, 불량률이 거의 없는 규사를 이용한 액정 표시소자의 제조 방법을 제공하는 것을 목적으로 한다.Therefore, in order to improve the above-mentioned problems, the present invention provides a plurality of liquid crystal cells with a small number of processes and high dimensional accuracy by cutting a part of the silica sand on the upper and lower glass substrates of the liquid crystal display panel. It aims at providing the manufacturing method of the liquid crystal display element using the silica sand which can carry out extraction and has little defect rate.

상기 목적을 달성하기 위하여 본 발명은, 액정 표시 소자의 하부 유리기판 절단 부위에 규사를 코팅하는 단계와, 상부 유리기판 절단 부위에 레이저 비임을 이용하여 절단하는 단계와 순차로 상부 유리기판의 기판 간극에 규사를 코팅하는 단계를 거쳐 하부 유리기판의 절단 부위를 레이저 비임을 이용하여 하부 유리기판을 절단하는 방법이다.In order to achieve the above object, the present invention, the step of coating the silica glass on the cut portion of the lower glass substrate of the liquid crystal display device, the step of cutting using a laser beam on the cut portion of the upper glass substrate and the substrate gap of the upper glass substrate in sequence A method of cutting the lower glass substrate using a laser beam to the cut portion of the lower glass substrate through the step of coating the silica sand.

이하, 첨부된 도면에 의거하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제 2 도의 본 발명에 의한 액정표시 소자의 정단면도에서 도시한 바와 같이, 상부 유리기판(1) 및 하부 유리기판(2)의 중간에 투명 도전막(3)(3') 및 배향막(4)(4')가 순차로 코팅되며, 중앙에 스페이서(5)를 개재하여 시일재(6)(6')로서 봉착한 액정표시 소자의 하측 유리기판 상에 규사(8)(8')를 각각 코팅하여 상부 유리기판(1) 상의 절단 부위(7)(7')를 레이저 비임을 쏘게되면, 상기 절단 부위(7)(7')를 통과한 레이저 비임은 규사(8)(8')에 닿아 반사하게 된다. 즉, 상부 유리기판(1)상의 절단부위(7)(7')는 유리로 되어있기 때문에 1차로 레이저 비임에 의해 절단되고, 이를 통과한 비임은 규사에 반사되어 재차 레이저 흡수장치를 통해 흡수된다.As shown in the cross sectional front view of the liquid crystal display device according to the present invention of FIG. 2, a transparent conductive film 3 (3 ') and an alignment film 4 are disposed between the upper glass substrate 1 and the lower glass substrate 2; 4 'is sequentially coated, and silica sand 8 and 8' are respectively placed on the lower glass substrate of the liquid crystal display element sealed as the seal member 6 and 6 'through the spacer 5 at the center thereof. When coating to shoot a laser beam at the cutout portions 7, 7 ′ on the upper glass substrate 1, the laser beam passing through the cutout portions 7, 7 ′ is applied to the silica sand 8, 8 ′. Touches and reflects. That is, since the cutout portions 7 and 7 'on the upper glass substrate 1 are made of glass, they are first cut by the laser beam, and the beam passing through the beam is reflected by the silica sand and absorbed by the laser absorber again. .

한편, 하부 유리기판(2)을 절단한 경우에 있어서도 마찬가지로 상부 유리기판(1)의 절단된 여분의 기판 간극(약 3~4mm정도)에 규사를 코팅한 후, 하부 유리기판(2)의 절단 부위를 통해 레이저 비임을 쏘게 되면 하부 유리기판(2)이 절단되고, 상부 유리기판(1)에 코팅된 규사에 의해 레이저 비임이 반사되어 레이저 흡수장치를 통해 흡수되면서 상, 하부 유리기판이절단되어 높은 치수의 정밀도로 액정셀을 뽑아낼 수 있다.On the other hand, in the case of cutting the lower glass substrate 2, the silica glass is coated on the extra substrate gap (about 3 to 4 mm) cut off of the upper glass substrate 1, and then the lower glass substrate 2 is cut. When the laser beam is shot through the part, the lower glass substrate 2 is cut, and the upper and lower glass substrates are cut while being reflected by the laser beam by the silica sand coated on the upper glass substrate 1 and absorbed through the laser absorber. The liquid crystal cell can be taken out with high precision.

이상에서 설명한 바와같이, 본 발명에 의하면 상, 하부 유리기판상에 규사를 일부 코팅하여 레이저 비임을 이용 절단 함으로써 적은 공정수와 우수한 치수의 정밀도로 다수의 액정셀을 뽑아낼 수 있음은 물론, 불량률이 거의 없는 액정표시 소자를 제조할 수 있는 잇점이 있다.As described above, according to the present invention, by partially coating the silica sand on the upper and lower glass substrates and cutting using a laser beam, it is possible to extract a large number of liquid crystal cells with a small number of processes and excellent dimensional accuracy, and of course, There is an advantage that can produce little liquid crystal display device.

Claims (1)

액정 표시소자의 하부 유리기판 절단 부위에 레이저 비임을 반사토록 하기위해 규사를 코팅하는 단계와, 상부 유리기판 절단부위에 레이저 비임을 이용하여 절단하는 단계와 순차로 상부 유리기판의 절단된 잔여 기판 간극에 규사를 코팅하는 단계를 거쳐 하부 유리기판의 절단부위에 레이저 비임을 이용하여 하부 유리기판을 절단하는 것을 특징으로 하는 규사를 이용한 액정 표시소자의 제조 방법.Coating silica sand to reflect the laser beam to the lower glass substrate cutout portion of the liquid crystal display device, cutting the laser glass onto the cutout portion of the upper glass substrate, and subsequently cutting the remaining substrate gap of the upper glass substrate. The method of manufacturing a liquid crystal display device using silica sand, characterized in that for cutting the lower glass substrate by using a laser beam on the cut portion of the lower glass substrate through the step of coating the silica sand.
KR1019900006646A 1990-05-10 1990-05-10 Making method of lcd KR930002923B1 (en)

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KR930002923B1 true KR930002923B1 (en) 1993-04-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100942118B1 (en) * 2004-10-20 2010-02-12 코닝 인코포레이티드 Optimization of parameters for sealing organic emitting light diodeoled displays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100942118B1 (en) * 2004-10-20 2010-02-12 코닝 인코포레이티드 Optimization of parameters for sealing organic emitting light diodeoled displays

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