KR930005554B1 - Method and injection devices of liquid crystal of lcd - Google Patents

Method and injection devices of liquid crystal of lcd Download PDF

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KR930005554B1
KR930005554B1 KR1019910002170A KR910002170A KR930005554B1 KR 930005554 B1 KR930005554 B1 KR 930005554B1 KR 1019910002170 A KR1019910002170 A KR 1019910002170A KR 910002170 A KR910002170 A KR 910002170A KR 930005554 B1 KR930005554 B1 KR 930005554B1
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liquid crystal
metal electrode
tray
coated
coating film
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KR1019910002170A
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KR920016874A (en
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김진영
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주식회사 금성사
이헌조
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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)
  • Liquid Crystal (AREA)

Abstract

The method improves the reliability of products and prevents the increase of power consumption by protecting the inflowing of impurity in the time of injecting liquid crystal. The metal electrode (8) coated with aluminium oxide (Al2O3) is set adjacent liquid crystal plate bar (4), which is formed on a liquid crystal plate (3). The voltage can be applied to the metal electrode. The thickness of Al2O3 coated layer has a range from 0.2 μm to 0.5 μm. The injection hole (7) of liquid crystal cell (2) is contacted with the liquid crystal formed on the liquid crystal plate bar. The impurity is filtered by the Al2O3 layer.

Description

액정 표시소자의 액정주입 장치 및 방법Liquid crystal injection device and method of liquid crystal display device

제1도는 일반적인 액정셀의 단면도.1 is a cross-sectional view of a general liquid crystal cell.

제2도는 일반적인 액정셀의 정면도.2 is a front view of a general liquid crystal cell.

제3도는 종래 액정주입장치의 개략 단면도.3 is a schematic cross-sectional view of a conventional liquid crystal injection device.

제4도는 본 발명에 의한 액정주입장치의 개략 단면도.4 is a schematic cross-sectional view of a liquid crystal injection device according to the present invention.

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

1 : 진공챔버 2 : 액정셀1: vacuum chamber 2: liquid crystal cell

3 : 액정쟁반 4 : 액정쟁반바(Bar)3: liquid crystal tray 4: liquid crystal tray

5 : 액정 6 : 액정반 이동대5 liquid crystal 6 liquid crystal panel moving table

7 : 액정주입구 8 : 금속전구7: liquid crystal injection hole 8: metal bulb

9 : Al2O3코팅막 10 : 직류전원9: Al 2 O 3 coating film 10: DC power

11,21 : 편향판 12,18 : 유리기판11,21: deflection plate 12,18: glass substrate

13 : 실(Seal) 14 : 스페이서13 seal 14 spacer

16,20 : 전극 17,19 : 배향막16,20 electrode 17,19 alignment film

본 발명은 액정표시소자의 액정주입장치 및 방법에 관한 것으로, 특히 액정을 주입함에 있어 불순물이 혼입되는 것을 방지하여 불순물에 의한 액정표시빠짐이 발생되지 않고, 소비전력의 증가를 방지할 수 있으며, 제품의 신뢰성을 높일 수 있도록 한 액정표시소자의 액정주입장치 및 방법에 관한 것이다.The present invention relates to a liquid crystal injection device and a method of a liquid crystal display device, in particular, to prevent the mixing of impurities during the injection of the liquid crystal does not cause the liquid crystal display missing due to impurities, it is possible to prevent an increase in power consumption, The present invention relates to a liquid crystal injection device and a method of a liquid crystal display device to improve the reliability of the product.

일반적으로 액정표시소자의 제조에 사용되는 액정셀(2)을 제조함에 있어서는 제1도 및 제2도에 도시한 바와 같이, 상하 유리기판(12, 18)의 내측면에 투명도전막에 의한 전극(16, 20)에 고분자 유기배향막(17, 19)을 도포하여 러빙 처리한 후, 상기 상하 유리기판(12, 18)의 사이가 일정간격(7㎛~10㎛)이 유지되도록 스페이서(14)를 섞은 열경화성 시일제(13)를 하판(18)에 인쇄하고, 상하 유리기판(12, 18)을 합착하여 이 합착한 상하 유리기판(12, 18)을 열경화시키는 것에 의하여 제조하고 있다.In general, in manufacturing the liquid crystal cell 2 used in the manufacture of the liquid crystal display device, as shown in FIGS. 1 and 2, an electrode made of a transparent conductive film on the inner surface of the upper and lower glass substrates 12 and 18 ( After the polymer organic alignment layers 17 and 19 are applied to the surfaces 16 and 20 and rubbed, the spacers 14 are disposed so that a predetermined interval (7 μm to 10 μm) is maintained between the upper and lower glass substrates 12 and 18. The mixed thermosetting sealing compound 13 is printed on the lower plate 18, the upper and lower glass substrates 12 and 18 are bonded together, and the bonded upper and lower glass substrates 12 and 18 are thermally cured.

상기와 같이 구성되는 액정셀(2)에 액정을 주입하기 위하여 종래에는 제3도에 도시한 바와 같이 상기 액정셀(2)을 카셋트에 넣어 진공챔버(1)에 넣는다.In order to inject liquid crystal into the liquid crystal cell 2 configured as described above, the liquid crystal cell 2 is conventionally put in a cassette and placed in a vacuum chamber 1 as shown in FIG.

이때 진공챔버(1)내의 진공도를 10-2~10-3Torr로 유지시킨 상태에서 액정주입구(7)를 액정쟁반(3)내의 액정쟁반바(4)위의 액정에 접촉시킨 후 질소 가스를 퍼즐시켜 대기압 상태로 되게 한다.At this time, the liquid crystal inlet 7 is brought into contact with the liquid crystal on the liquid crystal tray bar 4 in the liquid crystal tray 3 while the vacuum degree in the vacuum chamber 1 is maintained at 10 -2 to 10 -3 Torr. Puzzle it to atmospheric pressure.

여기서 모세관 현상과 기압차에 의한 흡인력으로 인하여 액정셀(2) 내부로 액정(5)이 주입된다.Here, the liquid crystal 5 is injected into the liquid crystal cell 2 due to the capillary phenomenon and the suction force caused by the pressure difference.

이와같이 액정셀(2)의 내부에 액정을 주입시킨 다음 액정셀(2) 내부로 습기가 침투되는 것을 방지하기 위하여 액정주입구(7)를 자외선 경화수지로 봉함으로써 완료된다.In this way, the liquid crystal is injected into the liquid crystal cell 2, and then the liquid crystal inlet 7 is sealed with an ultraviolet curable resin to prevent moisture from penetrating into the liquid crystal cell 2.

상술한 바와같이 종래의 액정표시소자 제조방법으로 액정을 주입할 경우 불순이온(Impurity)의 차폐에 의해 액정분자가 외부장을 경험하지 못하게 되어 표시빠짐이 발생되며, 또한 상기 불순이온에 의해 소비전력이 증가하게 되는 등의 문제점이 있었다.As described above, when the liquid crystal is injected by the conventional liquid crystal display device manufacturing method, the liquid crystal molecules do not experience an external field due to the shielding of impurity ions, and thus the display is lost. There was a problem such as increased.

본 발명의 목적은, 액정을 주입함에 있어 불순물이 혼입되는 것을 방지하여 불순물에 의한 액정표시빠짐이 발생되지 않고, 소비전력의 증가를 방지할 수 있으며, 제품의 신뢰성을 높일 수 있도록 한 액정표시소자의 액정주입장치 및 방법을 제공하려는 것이다.An object of the present invention is to prevent the mixing of impurities in injecting the liquid crystal does not cause liquid crystal display omission due to impurities, prevent the increase of power consumption, and improve the reliability of the product It is to provide a liquid crystal injection device and method.

이러한 본 발명의 목적을 달성하기 위하여 액정쟁반위에 금속으로 된 전극을 만들고, 여기에 Al2O3을 코팅해 액정주입시 코팅된 전극에 전압을 가해 불순물을 잡아줌으로써 정제된 액정을 주입할 수 있도록 한다.In order to achieve the object of the present invention to make a metal electrode on the liquid crystal tray, and coated with Al 2 O 3 to apply a voltage to the coated electrode in the liquid crystal injection to catch the impurities to inject the purified liquid do.

이하 본 발명에 의한 액정표시소자의 액정주입장치 및 방법을 첨부도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, a liquid crystal injection device and a method of a liquid crystal display device according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

제4도는 본 발명에 의한 액정표시소자의 액정주입장치의 실시예를 도시하는 것으로, 진공챔버(1)내에 설치되는 액정쟁반 이동대(6)위에 액정쟁반(3) 안치되고, 이 액정쟁반(3)내에 액정쟁반바(4)를 넣고, 상기 액정쟁반(4) 주위에 Al2O3코팅막(9)으로 0.2㎛~0.5㎛ 정도 코팅된 금속전극(8)을 설치하여 상기 금속전극(8)에 전압을 걸어줄 수 있도록 한 구성으로 되어 있다.4 shows an embodiment of a liquid crystal injection device of a liquid crystal display device according to the present invention, in which a liquid crystal tray 3 is placed on a liquid crystal tray moving table 6 provided in the vacuum chamber 1, and the liquid crystal tray ( 3) Into the liquid crystal tray bar 4, a metal electrode (8) coated with an Al 2 O 3 coating film (9) about 0.2㎛ ~ 0.5㎛ around the liquid crystal tray 4 is provided to the metal electrode (8) It is configured so that voltage can be applied to).

상기와 같은 구성을 가진 액정주입장치의 액정셀을 주입하기 위한 방법을 액정셀(2)을 진공챔버(1)에 넣어 진공도를 10-2~10-3Torr로 유지시키고 액정쟁반바(4) 주위의 금속전극(8)에 Al2O3을 0.2㎛~0.5㎛ 정도 코팅하여 액정쟁반(3)에서 직류전원(10)의 직류전압(수십볼트)을 인가하면 액정(5)속에 있던 불순양이온과 음이온이 가해진 전압에 의해 금속전극(8)으로 줄여가고, 또 전류에 의해 여기된 Al2O3코팅막(9)에 의해 양이온과 음이온이 Al2O3코팅막에 잡혀 있게 된다.The method for injecting the liquid crystal cell of the liquid crystal injection device having the above configuration is to put the liquid crystal cell (2) in the vacuum chamber (1) to maintain the vacuum degree of 10 -2 ~ 10 -3 Torr and the liquid crystal tray bar (4) When Al 2 O 3 is coated on the surrounding metal electrode 8 by 0.2 μm to 0.5 μm and a DC voltage of several tens of volts is applied from the liquid crystal tray 3, impurity ions in the liquid crystal 5 are applied. and negative ions are going to reduce the metal electrode 8 by the applied voltage, so that also the positive and negative ions by the Al 2 O 3 coating layer (9) excited by an electric current being held in the Al 2 O 3 coating.

이때 Al2O3코팅막(9)의 면적이 크면 클수록 좋다.In this case, the larger the area of the Al 2 O 3 coating film 9 is, the better.

이렇게 액정속에 들어있는 음이온과 양이온들을 잡아 준 다음 액정쟁반 이동대(6)를 이동하여 액정주입구(7)를 접촉시켜 질소가스를 퍼즐시키고 대기압 상태로 한 다음 액정(5)을 주입한다.The negative and positive ions contained in the liquid crystals are captured, and then the liquid crystal tray moving table 6 is moved to contact the liquid crystal inlet 7 to puzzle the nitrogen gas, bring it to atmospheric pressure, and then inject the liquid crystal 5.

액정주입 후 금속전극(8)에 Al2O3코팅막(9)을 코팅한 기구를 초음파로 세척한 다음 건조시켜 다시 사용할 수 있도록 한다.After the liquid crystal injection, the apparatus coated with the Al 2 O 3 coating layer 9 on the metal electrode 8 is ultrasonically cleaned and dried to be used again.

이상과 같이 본 발명에 의하면 액정셀에 액정을 주입함에 있어 액정속에 있는 불순물이 액정과 함께 셀내로 혼입되는 것을 방지하여 불순물에 의한 액정표시 빠짐이 발생되지 않고, 소비전력의 증가를 방지할 수 있으며, 제품의 신뢰성을 높일 수 있게 되는 것이다.As described above, according to the present invention, when the liquid crystal is injected into the liquid crystal cell, impurities in the liquid crystal are prevented from being mixed into the cell together with the liquid crystal, so that the liquid crystal display is not dropped by the impurities, and an increase in power consumption can be prevented. This will increase the reliability of the product.

Claims (3)

액정쟁반(3)위의 액정쟁반바(4) 주위에 Al2O3코팅막(9)으로 코팅된 금속전극(8)을 설치하고, 상기 금속전극(8)에 전압을 걸어줄 수 있도록 구성된 것을 특징으로 하는 액정표시소자의 액정주입장치.A metal electrode 8 coated with an Al 2 O 3 coating film 9 is provided around the liquid crystal tray bar 4 on the liquid crystal tray 3 and configured to apply a voltage to the metal electrode 8. A liquid crystal injection device for a liquid crystal display device, characterized in that. 제1항에 있어서, 상기 Al2O3코팅막(9)의 두께가 0.2㎛~0.5㎛인 것을 특징으로 하는 액정표시소자의 액정주입장치.The liquid crystal injection device according to claim 1, wherein the Al 2 O 3 coating film (9) has a thickness of 0.2 µm to 0.5 µm. 액정셀(2)의 액정주입구(7)를 액정쟁반(3)의 액정쟁반바(4)위에 있는 액정(5)과 접촉하게 배치하고, 액정쟁반바(4) 주위에 Al2O3코팅막(9)으로 코팅된 금속전극(8)을 설치하여 액정주입시 금속전극(8)에 전압을 걸어주어 불순물이 Al2O3코팅막(9)에 잡히게 하여 정제된 액정을 액정셀(2)에 주입할 수 있도록 함을 특징으로 하는 액정표시소자의 액정주입방법.The liquid crystal inlet 7 of the liquid crystal cell 2 is disposed in contact with the liquid crystal 5 on the liquid crystal tray bar 4 of the liquid crystal tray 3 , and an Al 2 O 3 coating film is formed around the liquid crystal tray bar 4. 9) a metal electrode 8 coated with a metal is applied to apply a voltage to the metal electrode 8 when the liquid crystal is injected so that impurities are trapped in the Al 2 O 3 coating film 9 to inject the purified liquid crystal into the liquid crystal cell 2. Liquid crystal injection method of the liquid crystal display device characterized in that it is possible to.
KR1019910002170A 1991-02-08 1991-02-08 Method and injection devices of liquid crystal of lcd KR930005554B1 (en)

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KR1019910002170A KR930005554B1 (en) 1991-02-08 1991-02-08 Method and injection devices of liquid crystal of lcd

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Application Number Priority Date Filing Date Title
KR1019910002170A KR930005554B1 (en) 1991-02-08 1991-02-08 Method and injection devices of liquid crystal of lcd

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KR930005554B1 true KR930005554B1 (en) 1993-06-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20100831A1 (en) * 2010-05-11 2011-11-12 Cbb Net S A PROCEDURE FOR THE PREPARATION OF SALTS OF THE ACID (R) ALPHA-LIPOIC THEIR FORMULATION AND USE IN PHARMACEUTICAL COMPOSITIONS IN THE FORM OF TABLETS THAT CONTAIN THEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20100831A1 (en) * 2010-05-11 2011-11-12 Cbb Net S A PROCEDURE FOR THE PREPARATION OF SALTS OF THE ACID (R) ALPHA-LIPOIC THEIR FORMULATION AND USE IN PHARMACEUTICAL COMPOSITIONS IN THE FORM OF TABLETS THAT CONTAIN THEM
EP2386552A1 (en) * 2010-05-11 2011-11-16 CBB Net S.A. Process for the preparation of (R) a-lipoic acid salts, their formulation and use in pharmaceutical compositions, in form of tablets containing them

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