KR930006716B1 - Devices and method for equalizing cell gap of lcd - Google Patents

Devices and method for equalizing cell gap of lcd Download PDF

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KR930006716B1
KR930006716B1 KR1019900012724A KR900012724A KR930006716B1 KR 930006716 B1 KR930006716 B1 KR 930006716B1 KR 1019900012724 A KR1019900012724 A KR 1019900012724A KR 900012724 A KR900012724 A KR 900012724A KR 930006716 B1 KR930006716 B1 KR 930006716B1
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South Korea
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liquid crystal
cell gap
equalizing
crystal display
display device
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KR1019900012724A
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Korean (ko)
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KR920004895A (en
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최성림
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삼성전관 주식회사
김정배
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells

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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 equalizing method comprises the following steps: inserting one end of LCD panel into an insert hole; maintaining the gap layer in a vacuum state; equalizing the LCD layer width by withdrawing the redundant liquid crystal; and end sealing. The apparatus includes a frame (1) having several insert holes (3) in silicon band (2) and a liquid crystal tank (4) to store redundant liquid crystal which is recovered through a pipe (5).

Description

액정표시 소자의 셀 갭층을 균등하게 하는방법 및 장치Method and apparatus for equalizing cell gap layer of liquid crystal display device

제1a 및 b도는 종래의 셀 갭층 형성 상태의 단면도.1A and B are cross-sectional views of a conventional cell gap layer formation state.

제2도는 본 발명에 의한 셀 갭층을 균등하게 하는 액정 회수 장치의 개략도.2 is a schematic view of a liquid crystal recovery device for equalizing a cell gap layer according to the present invention.

제3도는 본 발명에 의한 액정 회수 장치의 평면도.3 is a plan view of a liquid crystal recovery device according to the present invention.

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

1 : 본체부 2 : 실리콘 밴드1 body 2 silicon band

3 : 액정 표시 소자 판넬 삽착구 4 : 액정 회수통3: liquid crystal display panel inserting port 4: liquid crystal recovery container

5 : 파이프 S : 공간5: pipe S: space

본 발명은 액정표시 소자(LCD)에 있어서, 셀갭층(Cell Gap Layer)을 균등하게 하는 방법 및 장치에 관한 것으로, 특히 액정표시소자 판넬내에 불균등하게 형성된 셀 갭을 실리콘 밴드에 밀착시켜 진공상태를 유지한 다음 잔여액정을 회수함으로써 셀 갭층의 높이를 같게하는 액정표시 소자의 셀 갭층을 균등하게 하는 방법 및 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method and apparatus for equalizing a cell gap layer in a liquid crystal display device (LCD). Particularly, the present invention relates to a vacuum in which a cell gap formed unevenly in a liquid crystal display panel is brought into close contact with a silicon band. The present invention relates to a method and apparatus for equalizing the cell gap layer of a liquid crystal display device by maintaining and then recovering the remaining liquid crystal to make the height of the cell gap layer the same.

일반적으로 액정표시 소자는 액정층의 두께에 따라 전기광학특성 또는 응답속도 및 임계전압등의 특성이 달라지며, 특히 액정의 응답속도는 액정층 두께의 2제곱에 비례하는 등 액정층의 두께는 액정표시 소자에 있어서 매우 중요한 인자로 작용한다.In general, the liquid crystal display device has characteristics such as electro-optical characteristics, response speed, and threshold voltage depending on the thickness of the liquid crystal layer. In particular, the response speed of the liquid crystal is proportional to the square of the thickness of the liquid crystal layer. It acts as a very important factor in the display device.

이와같이 중요한 역할을 하는 액정층의 두께를 균등하게 유지하기 위한 셀 갭을 유지하기 위하여 종래에는 제1a 및 b도에 도시한 바와같이, 액정 주입후 액정(11)이 부풀어 올라 셀 갭의 불균등을 줄이기 위하여 상부 유리기판(12) 및 하부유리기판(13)을 눌러서 액정을 빼내어 셀갭의 높이를 같게하는 방법이 있으나 이와같은 방법은 액정의 회수가 불가능할 뿐만 아니라 셀 갭층의 두께를 자유로이 조절할 수 없고, 또한 소형의 액정표시소자에서는 용이하지만 대형의 액정표시소자, 특히 STN액정을 사용하는 대형의 액정표시 소자에 있어서는 상기 방법으로는 불량률이 많다는 커다란 결점이 있었다.In order to maintain the cell gap for maintaining the thickness of the liquid crystal layer that plays an important role in this manner, as shown in FIGS. 1A and 1B, the liquid crystal 11 swells after injecting the liquid crystal to reduce the unevenness of the cell gap. In order to remove the liquid crystal by pressing the upper glass substrate 12 and the lower glass substrate 13, the height of the cell gap is the same. Although it is easy in a small liquid crystal display device, in the large liquid crystal display device, especially the large liquid crystal display device using STN liquid crystal, the said method has a big drawback that there are many defect rates.

따라서, 본 발명은 상기와 같은 종래의 문제점을 개선하기 위하여 이루어진 것으로서 본 발명의 목적은 액정표시소자 판넬의 일단을 밀폐된 삽착구내에 삽착하는 단계와, 삽입구내에 연결된 파이프의 공기를 빼내어 진공상태를 유지한 다음 판넬내의 잔여액정을 회수하는 단계를 통하여 액정층의 두께를 균등하게 유지할 수 있고, 특히 대형표시소자등에 있어서 불량률이 거의 없는 액정표시소자의 셀갭층을 균등하게 하는 방법을 제공하는데 있다.Accordingly, an object of the present invention is to insert one end of a liquid crystal display panel into a sealed insertion opening, and to extract air from a pipe connected to the insertion opening. By maintaining the state and then recovering the remaining liquid crystal in the panel, the thickness of the liquid crystal layer can be maintained evenly, and in particular, in the large display device, there is provided a method for equalizing the cell gap layer of the liquid crystal display device with almost no defect rate. have.

본 발명의 또 다른 목적은 액정회수장치의 본체부 상면에 실리콘 밴드로 이루어진 액정표시소자 판넬 삽착구를 수개 형성하여 본체부내에 상기 판넬을 삽착한 후, 파이프에 연결된 액정회수통을 개재하여 파이프내의 공기를 빼냄으로써 진공상태가 되어 판넬내에 들어있던 액정의 일부가 빠져나오게 되어 액정을 회수토록 할 수 있는 액정표시소자의 셀 갭층을 균등하게 하는 장치를 제공하는데 있다.It is still another object of the present invention to form a plurality of liquid crystal display panel inserting holes formed of silicon bands on the upper surface of the main body of the liquid crystal recovering device and insert the panel into the main body, and then through the liquid crystal recovery container connected to the pipe. The present invention provides an apparatus for equalizing the cell gap layer of a liquid crystal display device capable of recovering liquid crystals by evacuating air, thereby evacuating some of the liquid crystals contained in the panel.

첨부된 도면에 의하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제2도는 본 발명에 의한 셀갭층을 균등하게 하는 액정회수장치의 개략도이고, 제3도는 본 발명에 의한 액정회수장치의 평면도이다.FIG. 2 is a schematic view of a liquid crystal recovery device for equalizing the cell gap layer according to the present invention, and FIG. 3 is a plan view of the liquid crystal recovery device according to the present invention.

제2도 및 제3도에 도시한 바와같이 액정회수장치(10)의 본체부(1) 상측에 실리콘 밴드(2)로 이루어진 액정 표시소자 삽착구(3)을 수개 형성하고, 상기 본체부 내부에는 공간(S)을 형성하여 중간에 액정 회수통(4)이 착설된 파이프(5)로 연결된 구성으로 이루어졌다.As shown in FIGS. 2 and 3, a plurality of liquid crystal display element insertion holes 3 made of silicon bands 2 are formed on the main body 1 of the liquid crystal recovery device 10, and the inside of the main body portion. In the space (S) was formed to form a configuration connected to the pipe 5, the liquid crystal recovery container 4 in the middle.

상기와 같은 구성으로 이루어진 본 발명의 액정층의 두께를 균등하도록 하는 액정회수장치(10), 제2도 및 제3도에 도시한 바와같이, 본체부(1)의 상측에 실리콘 밴드(2)로 이루어진 표시소자 삽착구(3)를 수개 형성함으로써 액정 표시소자 판넬(6)을 다량으로 한꺼번에 셀 갭 층을 균등하게 할 수가 있다.As shown in the liquid crystal recovering device 10, 2 and 3 to equalize the thickness of the liquid crystal layer of the present invention having the above configuration, the silicon band 2 is placed on the upper side of the main body part 1. By forming several display element insertion openings 3, the cell gap layer can be made uniform in a large amount at one time.

즉, 액정 표시소자 판넬(6)을 삽착구(3)내에 삽착할 때 주위의 실리콘 밴드(2)에 의해 밀착되면서 삽입되어 상기 본체부(1)내측의 공간(S)내에 표시소자 판넬 하단부가 밀폐된 상태에서 세로로 세워져 고정된다.That is, when the liquid crystal display device panel 6 is inserted into the insertion hole 3, the liquid crystal display device panel 6 is inserted while being closely attached by the surrounding silicon band 2 so that the lower end of the display device panel in the space S inside the main body part 1. It is vertically fixed in a sealed state.

한편, 상기 본체부(1) 내측의 공간(S)내에는 중간에 액정 회수통(4)이 착설된 파이프(5)의 일단이 연결되어 파이프(5) 및 본체부(1)의 공간(S)내에 있던 공기를 빼내어 진공상태를 만들면 액정표시소자 판넬(6)내의 액정이 본체부(1)의 공간(S)으로 흘러서 파이프(5)를 통해 액정 회수통(4)에 모이게 되며, 상기 액정 표시소자판넬(6)의 셀 갭이 균등한 상태로 유지되었을때 상기 작업을 마치고 개구부를 앤드 시일(end seal)을 하여 작업을 완료하게 된다.On the other hand, in the space (S) inside the main body 1, one end of the pipe (5) in which the liquid crystal recovery container 4 is placed in the middle is connected to the space (S) of the pipe (5) and the main body (1) When the air inside the liquid crystal panel is removed to form a vacuum state, the liquid crystal in the liquid crystal display panel 6 flows into the space S of the main body 1 and collects in the liquid crystal recovery container 4 through the pipe 5. When the cell gap of the display element panel 6 is maintained in an equal state, the above operation is completed, and the opening is end sealed to complete the operation.

상기에서 설명한 바와같이 본 발명에 의한 액정표시소자의 셀갭층을 균등하게 하는 방법 및 장치에 의하면 대형 표시 소자쪽으로 갈수록 상기 방법에 의해 셀갭층을 균등하게 유지할 수 있어, 불량률의 거의 없고, 잔여 액정을 회수하면서 액정층의 두께를 자유롭게 조절할 수 있는 효과가 있다.As described above, according to the method and apparatus for equalizing the cell gap layer of the liquid crystal display device according to the present invention, the cell gap layer can be uniformly maintained by the above method toward the large display device, so that there is almost no defect rate, While recovering, there is an effect of freely adjusting the thickness of the liquid crystal layer.

Claims (1)

액정표시 소자 판넬의 일단을 밀폐된 삽착구 내에 삽착하는 단계와, 진공상태를 이용하여 상기 판넬내의 잔여 액정이 유출되어 액정 회수통에 회수되는 단계 및 개구부를 앤드시일하는 단계를 통해 셀 갭을 같게 하도록 함을 특징으로 하는 액정표시 소자의 셀 갭층을 균등하게 하는 방법.Inserting one end of the liquid crystal display panel into the sealed insertion opening, and using the vacuum state, the remaining liquid crystal in the panel is discharged to be recovered to the liquid crystal recovery container and the end seal of the opening and sealing the cell gap And equalizing the cell gap layers of the liquid crystal display element.
KR1019900012724A 1990-08-18 1990-08-18 Devices and method for equalizing cell gap of lcd KR930006716B1 (en)

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KR1019900012724A KR930006716B1 (en) 1990-08-18 1990-08-18 Devices and method for equalizing cell gap of lcd

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KR1019900012724A KR930006716B1 (en) 1990-08-18 1990-08-18 Devices and method for equalizing cell gap of lcd

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KR930006716B1 true KR930006716B1 (en) 1993-07-23

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