KR20010004065A - Liquid crystal display - Google Patents

Liquid crystal display Download PDF

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Publication number
KR20010004065A
KR20010004065A KR1019990024658A KR19990024658A KR20010004065A KR 20010004065 A KR20010004065 A KR 20010004065A KR 1019990024658 A KR1019990024658 A KR 1019990024658A KR 19990024658 A KR19990024658 A KR 19990024658A KR 20010004065 A KR20010004065 A KR 20010004065A
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KR
South Korea
Prior art keywords
liquid crystal
crystal display
injection hole
seal
display device
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KR1019990024658A
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Korean (ko)
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KR100325856B1 (en
Inventor
김정수
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김순택
삼성에스디아이 주식회사
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Priority to KR1019990024658A priority Critical patent/KR100325856B1/en
Publication of KR20010004065A publication Critical patent/KR20010004065A/en
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Publication of KR100325856B1 publication Critical patent/KR100325856B1/en

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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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates
    • 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
    • G02F2202/28—Adhesive materials or 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

PURPOSE: A liquid crystal display is provided to prevent end seal defects or leak generation by forming a predetermined margin space between a liquid crystal injection opening and a guide seal. CONSTITUTION: The liquid crystal display comprises a substrate(2), a sealant(4), a liquid crystal injection opening(6), and a guide seal(4a). A predetermined margin space(12) is formed between the liquid crystal injection opening(6) and the guide seal(4a). A reinforcement seal(14) is formed at the margin space(12).

Description

액정표시소자{Liquid crystal display}Liquid crystal display device

본 발명은 엔드 실의 실링 불량이나 리크(leak)를 방지하여 구조적으로 안정되고, 신뢰성을 향상시킬 수 있도록 한 액정표시소자에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device capable of structurally stable and improving reliability by preventing sealing failure or leakage of the end seal.

액정표시소자는 외부로부터 인가되는 전압에 의해 액정의 꼬임각이 변화되는 유전이방성을 이용하여, 백라이트 혹은 외부로부터 조사된 광(光)을 선택적으로 투과시키거나 반대로 투과되지 않게 함으로써 문자나 숫자 및 화상을 표시한다.The liquid crystal display device uses dielectric anisotropy in which the twist angle of the liquid crystal is changed by a voltage applied from the outside, and selectively transmits or transmits light irradiated from the backlight or the outside or vice versa. Is displayed.

이러한 액정표시소자는 도 3과 같이 기판(2)에 투명전극, 절연층 및 배향층을 형성하고, 액정 물질을 외기로부터 차단하여 봉입할 목적으로 실란트(4)를 이용하여 소정의 공간을 만들며 동시에 상·하로 대향 배치된 2매의 기판(2)을 상호 접착하여서 셀을 구성하고, 주입구(6)를 통해 액정 물질을 주입한 후 엔드 실제(sealant; 8)를 이용하여 밀봉한 구성으로 이루어진다.Such a liquid crystal display device forms a predetermined space by using a sealant 4 for the purpose of forming a transparent electrode, an insulating layer, and an alignment layer on the substrate 2 as shown in FIG. A cell is formed by adhering two substrates 2 arranged upside down to each other, and injecting a liquid crystal material through an injection hole 6, and then sealing them using an end seal 8.

엔드 실제(8)의 재료로는 아크릴수지에 중합 개시제와 첨가제를 혼합하여 액상으로 만든 UV 경화제를 사용하며, 이것은 액정 물질을 주입한 후 주입구(6)에 발라져 경화되므로 셀을 밀봉하게 된다. 액정의 주입구(6) 부근에는 가이드 실(4a)이 마련되어 있어 액정 주입시 손실을 방지하며 아울러 구조적인 강도를 높이고 있다.The material of the end seal 8 is a UV curing agent made of a liquid mixture by mixing a polymerization initiator and an additive with an acrylic resin, which is applied to the inlet 6 after curing the liquid crystal material, thereby curing the cell. A guide seal 4a is provided near the injection hole 6 of the liquid crystal to prevent loss during liquid crystal injection and to increase structural strength.

그러나 종래의 가이드 실(4a) 구조는 엔드 실제를 도포할 때 주입구(6)와 가이드 실(4a)의 사이공간에 잔류하던 액정 물질 및 에어의 배출 통로를 막아, 엔드 실제가 투입될 공간을 차단하므로 상·하 기판의 실링 및 접착력을 약화시키는 문제점이 있다.However, the conventional guide seal 4a structure blocks the discharge passage of the liquid crystal material and air remaining in the space between the injection hole 6 and the guide seal 4a when applying the end seal, thereby blocking the space into which the end seal is to be introduced. Therefore, there is a problem of weakening the sealing and adhesion of the upper and lower substrates.

또한 잔존하는 액정 물질로 인해 엔드 실제의 접착력이 약화되므로, 실링 불량이나 수명 및 신뢰성 저하를 초래하게 된다.In addition, due to the remaining liquid crystal material, the adhesive strength of the end is weakened, resulting in a poor sealing, a deterioration of lifetime and reliability.

앞서 설명한 종래 기술의 문제점을 해결하기 위한 것으로서, 본 발명은 액절 물질 및 에어의 잔존으로 인한 엔드 실 불량이나 리크 발생을 방지하여, 제품의 수명과 신뢰성을 향상시킬 수 있도록 한 액정표시소자를 제공함에 그 목적을 두고 있다.In order to solve the problems of the prior art described above, the present invention is to provide a liquid crystal display device to prevent the end seal failure or leakage caused by the remaining liquid liquid and air, thereby improving the life and reliability of the product The purpose is to.

이를 위하여 본 발명에서는 상·하부의 기판을 상호 접착하고, 그 사이로 액정 물질을 주입한 다음 엔드 실제를 이용하여 주입구를 밀봉함에 있어서, 상기 주입구와 가이드 실의 사이에 엔드 실제가 투입되고 잔존하던 액정 물질 및 에어가 배출될 수 있는 여유 공간을 마련한 것이며, 그 여유 공간의 바깥쪽에 가이드 실을 형성하고, 상기 여유 공간에 실란트로부터 분리되어 독립된 보강 실을 형성한 액정표시소자를 제안한다.To this end, in the present invention, the upper and lower substrates are bonded to each other, and a liquid crystal material is injected therebetween, and then the end actual is inserted between the injection hole and the guide seal and the remaining liquid is used to seal the injection hole. The present invention provides a liquid crystal display device in which a free space through which a substance and air can be discharged is provided, and a guide seal is formed outside the free space, and an independent reinforcement seal is formed in the free space, separated from the sealant.

여유 공간은 적어도 5㎜ 이상이어야 하고, 주입구가 형성된 변의 전체 길이의 ⅓이 넘지 않아야 한다.Clearances shall be at least 5 mm and shall not exceed the length of the full length of the side on which the inlet is formed.

도 1은 본 발명의 액정표시소자를 보인 평면 구성도.1 is a plan view showing a liquid crystal display device of the present invention.

도 2는 본 발명의 다른 예를 보인 평면 구성도.Figure 2 is a plan view showing another example of the present invention.

도 3은 종래 공지된 액정표시소자를 보인 평면 구성도.3 is a plan view showing a conventionally known liquid crystal display device.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

2-기판 4-실란트2-substrate 4-sealant

4a-가이드 실 6-주입구4a-guide seal 6-inlet

8-엔드 실 12-공간8-end room 12-space

14-보강 실14-reinforcement room

이하, 본 발명을 실현하기 위한 바람직한 실시예를 첨부 도면에 의거하여 설명한다. 참고로 본 발명을 설명함에 있어, 종래 기술에서 인용한 도면과 동일한 구성에 대하여는 동일 부호를 부여하기로 한다.Best Mode for Carrying Out the Invention Preferred embodiments for realizing the present invention will be described below with reference to the accompanying drawings. For reference, in describing the present invention, the same reference numerals will be given to the same configurations as those of the drawings cited in the related art.

도 1은 본 발명에 의한 액정표시소자의 평면 구성도를 보여주고 있다.1 shows a plan view of a liquid crystal display device according to the present invention.

본 발명에서 액정표시소자의 상·하부 기판(2)은 두께가 얇고 플렉시블한 플라스틱 필름 혹은 글라스를 사용할 수 있다. 상·하부 기판(2)의 내측면에는 각각 투명전극, 절연층 및 배향층이 형성되지만, 도시는 생략하기로 한다.In the present invention, the upper and lower substrates 2 of the liquid crystal display device may use a thin plastic film or glass. Although the transparent electrode, the insulating layer, and the orientation layer are formed in the inner surface of the upper and lower substrates 2, illustration is abbreviate | omitted.

이렇게 형성된 한 쌍의 기판(2)은 화면부의 주변에 실란트(4)를 도포한 상태에서, 양 기판의 투명전극이 상호 교차하도록 겹친 후 실란트(4)를 경화하므로 액정 셀을 형성한다.The pair of substrates 2 formed as described above overlap the transparent electrodes of both substrates in a state where the sealant 4 is applied around the screen portion, and then harden the sealant 4 to form a liquid crystal cell.

액정 셀은 실란트(4)에 의해 밀봉되지 않은 액정 주입구(6)를 통해 액정 물질을 주입하고 밀봉하게 되는 바, 본 발명에서는 상기 액정 주입구(6)에 엔드 실(8)제를 투입시켜 밀봉함에 있어서, 상기 주입구(6)의 주변에 엔드 실제의 투입시 잔존하던 액정 물질 및 에어를 배출할 수 있는 통로를 마련하여, 도면에서와 같이 상·하 기판(2)의 사이까지 엔드 실제가 투입되어 접착되도록 한다.The liquid crystal cell injects and seals the liquid crystal material through the liquid crystal injection hole 6 which is not sealed by the sealant 4. In the present invention, the end seal 8 is injected into the liquid crystal injection hole 6 to seal the liquid. In this case, a passage through which the liquid crystal material and air remaining during the end actual injection is provided around the injection hole 6 is provided, and the end actual is introduced between the upper and lower substrates 2 as shown in the drawing. To bond.

이를 위하여 본 발명에서는 액정 주입구(6)와 가이드 실(4a)의 사이에 소정의 여유 공간(12)을 형성한 것이며, 그 공간은 적어도 5㎜ 이상이고 주입구가 형성된 변의 전체 길이에 대하여 ⅓을 넘지 않는 길이로 형성하는 것이 좋다. 여기서 여유 공간이 5㎜ 이하가 되면 종래 기술의 문제점을 해결하지 못하게 되며, 주입구가 형성된 변의 ⅓의 길이를 넘게 되면 가이드 실(4a)의 기능이 유명 무실하게 될 수 있다.To this end, in the present invention, a predetermined free space 12 is formed between the liquid crystal injection hole 6 and the guide seal 4a, and the space is at least 5 mm or more and does not exceed 에 with respect to the entire length of the side where the injection hole is formed. It is good to form the length does not. If the free space is 5 mm or less, the problem of the prior art cannot be solved, and if the length of the edge of the side where the injection hole is formed is exceeded, the function of the guide seal 4a may become famous.

또 본 발명에서는 종래 가이드 실(4a)의 역할을 보존하기 위하여 상기 여유 공간(12)에 보강 실(14)을 더 형성하여 구조적인 강도를 유지할 수 있다. 이것은 실란트(4)로부터 분리되어 독립된 구조로 이루어져야 하며, 그 형상은 사각형 혹은 도 2와 같이 원형 및 도트로 형성할 수 있다.In addition, in the present invention, in order to preserve the role of the conventional guide seal (4a) it is possible to further maintain the structural strength by further forming a reinforcement seal (14) in the free space (12). It should be separated from the sealant 4 and made of an independent structure, and the shape can be formed in a rectangle or a circle and a dot as shown in FIG.

이와 같은 구성에 따라 본 발명의 엔드 실(8)은 도면을 통하여 표시한 바와 같이, 액정 주입구(6)의 내부 및 외부를 동시에 감싸도록 투입된 상태로 경화되어지며, 그 결과 실링 및 접착력을 향상시키게 된다.According to such a configuration, the end seal 8 of the present invention is hardened in a state in which it is enclosed to simultaneously enclose the inside and the outside of the liquid crystal injection hole 6 as shown in the drawings, and as a result, to improve the sealing and adhesive force. do.

이상에서 설명한 구성 및 작용을 통하여 알 수 있듯이, 본 발명의 액정표시소자는 액정 주입구 주변의 실링 구조를 개선하여 종래 기술의 문제점을 실질적으로 해결하고 있다.As can be seen through the configuration and operation described above, the liquid crystal display device of the present invention substantially solves the problems of the prior art by improving the sealing structure around the liquid crystal injection hole.

즉 본 발명에 의하면 액정의 주입구 주변에 잔존하는 액절 물질 및 에어를 배출하여, 주입구의 내·외부에 엔드 실이 투입되어 실링 및 접착력을 향상시킴으로써, 엔드 실 불량이나 리크를 방지할 수 있으며, 제품의 수명과 신뢰성을 향상시키는 효과를 얻을 수 있다.That is, according to the present invention, the liquid remaining substances and air remaining around the injection hole of the liquid crystal are discharged, and the end seal is introduced into the inside and the outside of the injection hole to improve sealing and adhesion, thereby preventing end seal failure and leakage. It is possible to obtain the effect of improving the service life and reliability of the.

Claims (3)

전극, 절연층 및 배향층이 적층된 상·하 기판을 실란트를 이용하여 상호 접착하고, 그 사이로 액정 물질을 주입한 다음 엔드 실제로 주입구를 밀봉하여서 얻어지는 액정표시소자에 있어서,A liquid crystal display device obtained by bonding an upper and a lower substrate on which an electrode, an insulating layer, and an alignment layer are stacked together with a sealant, injecting a liquid crystal material therebetween, and then actually sealing the injection hole. 상기 주입구의 주변으로 실란트로부터 연결되어 형성된 가이드 실과, 상기 주입구와 가이드 실의 사이공간으로 엔드 실제를 투입할 때 잔존하던 액정 물질 및 에어의 배출 통로를 구성하는 여유 공간을 포함하는 액정표시소자.And a guide space formed around the injection hole and connected to the sealant, and a free space constituting a discharge passage of the liquid crystal material and air remaining when the end actual is introduced into the space between the injection hole and the guide seal. 제 1 항에 있어서, 상기 여유 공간에 실란트로부터 분리되어 독립된 보강 실을 더 형성한 액정표시소자.The liquid crystal display device of claim 1, further comprising an independent reinforcement chamber separated from the sealant in the free space. 제 1 항에 있어서, 상기 여유 공간은 적어도 5㎜ 이상이고, 주입구가 형성된 변의 전체 길이의 ⅓을 넘지 않는 길이로 형성된 것을 특징으로 하는 액정표시소자.The liquid crystal display device according to claim 1, wherein the free space is at least 5 mm or more and has a length not exceeding a length of the entire length of the side where the injection hole is formed.
KR1019990024658A 1999-06-28 1999-06-28 Liquid crystal display KR100325856B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN110376801A (en) * 2019-06-25 2019-10-25 厦门天马微电子有限公司 Display panel motherboard, frame glue coating method and display panel

Cited By (2)

* Cited by examiner, † Cited by third party
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CN110376801A (en) * 2019-06-25 2019-10-25 厦门天马微电子有限公司 Display panel motherboard, frame glue coating method and display panel
CN110376801B (en) * 2019-06-25 2022-01-21 厦门天马微电子有限公司 Display panel mother board, frame glue coating method and display panel

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