KR0142822B1 - Sealing method and exhausting apparatus for flat palel display - Google Patents

Sealing method and exhausting apparatus for flat palel display

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Publication number
KR0142822B1
KR0142822B1 KR1019940024639A KR19940024639A KR0142822B1 KR 0142822 B1 KR0142822 B1 KR 0142822B1 KR 1019940024639 A KR1019940024639 A KR 1019940024639A KR 19940024639 A KR19940024639 A KR 19940024639A KR 0142822 B1 KR0142822 B1 KR 0142822B1
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KR
South Korea
Prior art keywords
exhaust
panel display
flat panel
sealing
display element
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KR1019940024639A
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Korean (ko)
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KR960012268A (en
Inventor
김봉출
이춘우
Original Assignee
엄길용
오리온전기주식회사
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Application filed by 엄길용, 오리온전기주식회사 filed Critical 엄길용
Priority to KR1019940024639A priority Critical patent/KR0142822B1/en
Publication of KR960012268A publication Critical patent/KR960012268A/en
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Publication of KR0142822B1 publication Critical patent/KR0142822B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes

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  • Liquid Crystal (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

본 발명은 평판표시소자의 신규한 밀봉방법과 이를 구현하는 배기장치를 개시한다.The present invention discloses a novel sealing method for a flat panel display device and an exhaust device for implementing the same.

종래에는 소자의 배기구멍에 배기관을 부착하여 이를 통해 배기및 밀봉을 행하도록 구성하였으므로 제작과 취급이 번거롭고 배기관의 일부가 잔류하는 문제가 있었다.In the related art, since an exhaust pipe is attached to the exhaust hole of the device to exhaust and seal through the exhaust pipe, it is cumbersome to manufacture and handle, and there is a problem that a part of the exhaust pipe remains.

본 발명에는 배기구멍을 배기한후 별도의 커버를 이에 접합하여 밀봉하도록 함으로써 종래의 문제점들을 해결하였다.The present invention solves the conventional problems by exhausting the exhaust hole and then sealing by bonding a separate cover thereto.

Description

평판표시소자의 밀봉방법및 배기장치Sealing method and exhaust device for flat panel display element

제1도는 종래의 배기및 밀봉방법을 보이는 평판표시소자의 부분단면도,1 is a partial cross-sectional view of a flat panel display device showing a conventional exhaust and sealing method;

제2도는 종래의 배기장치를 보이는 개략 단면도,2 is a schematic cross-sectional view showing a conventional exhaust device,

제3도는 본 발명 방법에 따른 밀봉구조를 보이는 평판표시소자의 부분단면도,3 is a partial cross-sectional view of a flat panel display device showing a sealing structure according to the method of the present invention;

제4도는 본 발명에 따른 배기장치를 보이는 개략단면도이다.4 is a schematic cross-sectional view showing an exhaust device according to the present invention.

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

D:평판표시소자 10:커버(cover)D: Flat display element 10: Cover

X:배기구멍 1:배기카아트X: Exhaust hole 1: Exhaust car art

2:배기실 3:밀봉헤드2: exhaust chamber 3: sealing head

4:액튜에이터(actuator) P1, P2:진공펌프4: Actuator P1, P2: Vacuum pump

본발명은 평판표시소자의 제조에 관한 것으로, 더 상세히는 이를 밀봉하는 방법과 그 구현에 적합한 배기장치에 관한 것이다.The present invention relates to the manufacture of a flat panel display device, and more particularly to a method for sealing it and an exhaust device suitable for its implementation.

전자기기의 경박단소화 경향에 따라 화상표시장치도 브라운관으로부터 PDP나 LCD 또는 EL등 다양한 평판표시소자로 이행하고 있다.Background Art [0002] In accordance with the trend of light and short sized electronic devices, image display devices are also shifting from CRTs to various flat panel display devices such as PDPs, LCDs or ELs.

일반적으로 평판표시소자는 서로 대향하는 두 기판사이에 셀(cell)을 형성하여, 이 셀을 배기한뒤 기상(氣狀)의 작동유체를 주입및 밀봉하게 된다.In general, a flat panel display device forms a cell between two substrates facing each other, exhausts the cell, and injects and seals a gaseous working fluid.

제1도에는 PDP의 배기및 밀봉구조를 도시하였는데, 배면기판(R)에 형성된 배기구멍(X) 주위에는 배기관(S)이 봉착되어, 전면기판(F)과 배면기판(R) 사이의 셀(C)이 이 배기관(S)을 통해 배기된다.FIG. 1 shows the exhaust and sealing structure of the PDP. The exhaust pipe S is sealed around the exhaust hole X formed in the rear substrate R, so that the cell between the front substrate F and the rear substrate R is closed. (C) is exhausted through this exhaust pipe (S).

다음 이 배기관(S)을 통해 방전기체가 주입된 후 배기관(S)의 중간을 열융착으로 봉합(tipping)함으로써 밀봉이 이루어진다.Next, after the discharge gas is injected through the exhaust pipe S, sealing is performed by sealing the middle of the exhaust pipe S by heat fusion.

이와같은 PDP의 배기및 밀봉에 사용되는 배기장치는 대략 제2도에 도시된 바와 같다.The exhaust device used for the exhaust and sealing of such a PDP is approximately as shown in FIG.

제2도에서, 연속생산을 위한 배기카아트(1')상에는 유확산펌프(P1)와 로타리펌프(P2)가 2단으로 설치되어, 평판표시소자(D)는 그 배기관(S)측이 유확산펌프(P1)상측의 배기헤드에 결합된다.In FIG. 2, the diffusion pump P1 and the rotary pump P2 are provided in two stages on the exhaust car art 1 'for continuous production, and the flat panel display element D is disposed at the exhaust pipe S side. It is coupled to the exhaust head above the diffusion pump P1.

배기헤드에는 방전가스 주입구(6)와 유확산펌프(P1)측을 전환하는 3방 밸브(three-way valve)등의 전환밸브(V)가 구비되고, 배기관(S)의 외측에는 그 봉합을 위한 가열부(9)가 설치된다.The exhaust head is provided with a switching valve V such as a three-way valve for switching the discharge gas inlet 6 and the diffusion pump P1 side, and the sealing is provided outside the exhaust pipe S. Heating section 9 is provided.

한편 나머지 부호 7은 유확산펌프(P1)의 냉각관이다.On the other hand, the remaining 7 is a cooling pipe of the oil diffusion pump (P1).

이와같은 배기장치는 유확산펌프(P1) 및 로타리펌프(P2)가 작동하여 배기관(S)을 통해 평판표시소자(D)의 내부를 배기해내고 나면, 전환밸브(V)가 방전가스주입구(6)측으로 전환되어 배기된 평판표시소자(D)의 내부에 방전가스를 충전시키게 된다.In the exhaust device, after the diffusion pump P1 and the rotary pump P2 operate to exhaust the inside of the flat panel display device D through the exhaust pipe S, the switching valve V is discharged. The discharge gas is filled in the flat-panel display element D which has been switched to 6) and exhausted.

다음 가열부(9)가 배기관(S)을 녹여 평판표시소자(D)를 밀봉상태로 봉합시키게 된다.Next, the heating unit 9 melts the exhaust pipe S to seal the flat panel display device D in a sealed state.

이러한 종래방법에 의한 배기및 밀봉구조는 다음과 같은 여러 가지 문제를 가지고 있다.The exhaust and sealing structure by this conventional method has various problems as follows.

즉 배기및 밀봉을 위해 평판표시소자(D)에 별도의 배기관(S)을 부착시켜야 하므로 원가와 공수가 많이 소요될 뿐 아니라, 배기관(S)은 가는 유리관이므로 취급중 잘 파손되어 취급이 어렵고 불량이 빈발하여 그 재생에도 많은 공수가 소요된다.In other words, it is necessary to attach a separate exhaust pipe (S) to the flat panel display device (D) for exhausting and sealing, not only costs a lot of cost and labor, but also because the exhaust pipe (S) is a thin glass tube, it is difficult to handle and is difficult to handle. It is frequent and requires a lot of airborne regeneration.

뿐만 아니라 배기관(S)의 봉합후에도 그 잔류부가 평판표시소자(D)의 배면으로 돌출하게 되므로 회로기판등의 설치시 평판표시소자(D)와 상당한 공간이 이격되지 않으면 안되며, 이 잔류부가 회로기판이나 프레임등에 충돌하여 파손되기 쉬워 조립성도 극히 불량한 문제가 있는 것이다.In addition, since the residual portion protrudes to the rear surface of the flat panel display device D even after the exhaust pipe S is sealed, a considerable space must be separated from the flat panel display device D when the circuit board is installed. It is easy to be damaged by colliding with a frame or the like, and there is a problem of extremely poor assembly.

상술한 종래의 여러 가지 문제점을 감안하여 본 발명의 목적은 취급이 용이하고 배면에 유휴공간이 발생되지 않고 외부충격등으로부터 안전한 밀봉방법을 제공하는 것이다.It is an object of the present invention in view of the various problems described above to provide a sealing method that is easy to handle and does not generate an idle space on the back and is safe from external shocks and the like.

본 발명의 다른 목적은 이러한 밀봉방법의 구현에 적합한 배기장치를 제공하는 것이다.Another object of the present invention is to provide an exhaust device suitable for implementing such a sealing method.

본 발명의 첫번째 목적을 달성하는 밀봉방법은 배면기판측에 형성된 배기구멍을 통해 셀내를 배기하고 소요기체를 충전하여 밀봉하는 평판표시소자의 밀봉방법에 있어서, 배기구멍을 통해 배기및 충전을 행한뒤, 이 배기구멍에 커버를 덮어 이 커버를 접합시킴으로써 배기구멍을 밀봉하는 것을 특징으로 한다.The sealing method which achieves the 1st objective of this invention is a sealing method of the flat panel display element which exhausts the inside of a cell through the exhaust hole formed in the back substrate side, and fills and seals required gas, and after exhausting and filling through the exhaust hole, The exhaust hole is sealed by covering the exhaust hole with a cover and joining the cover.

이와같은 구성에 있어서, 커버는 접착제로 접합되거나, 그 자체가 열가소성 유리계 재질의 가(假)소성체(燒成體)로 구성되어 소결(燒結)에 의해 접합될 수 있다.In such a configuration, the cover may be bonded by an adhesive, or itself may be made of a thermoplastic plastic material and joined by sintering.

특히 후자의 구성을 택하는 경우 이를 구현하는 배기장치는 진공펌프와, 이 진공펌프에 선택적으로 접속되며, 적어도 평판표시장치의 배기구멍 주위를 밀봉시키는 배기실과, 액튜에이터(actuator)에 의해 배기실내부를 승강하며, 그 선단에 커버가 지지되고 이 커버를 가열하는 가열부가 구비된 밀봉헤드를 구비하는 것을 특징으로 한다.In particular, in the case of the latter configuration, an exhaust device for realizing the latter includes a vacuum pump, an exhaust chamber selectively connected to the vacuum pump, and at least sealed around the exhaust hole of the flat panel display device, and an exhaust chamber inside by an actuator. It moves up and down, and is provided with the sealing head which the cover is supported by the front end, and the heating part which heats this cover is provided.

이와같은 본 발명 밀봉방법과 배기장치의 구체적특징과 이점들은 첨부된 도면을 참조로 한 이하의 바람직한 실시예의 설명으로 더욱 명확해 질 것이다.Such specific features and advantages of the present invention sealing method and exhaust device will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

제3도에서, 서로 대향하는 전면기판(F)과 배면기판(R) 간에 셀(C)을 형성한 평판표시소자(D)의 배면기판(R)에는 배기구멍(X)이 형성되어 이 배기구멍(X)을 통해 셀(C)내부를 배기하고 필요에 따라 방전가스등 적절한 방전유체를 충전해 주게된다.In FIG. 3, an exhaust hole X is formed in the rear substrate R of the flat panel display device D in which the cell C is formed between the front substrate F and the rear substrate R facing each other. The inside of the cell C is exhausted through the hole X, and an appropriate discharge fluid such as a discharge gas is filled as necessary.

본 발명에는 배기구멍(X)에 별도의 배기관(제1도의 5)을 부착시키는 대신, 이 상태에서 배기및 충전을 수행한뒤 커버(10)를 배기구멍(X)상에 접합시킴으로써 셀(C)을 밀봉하게 된다.In the present invention, instead of attaching a separate exhaust pipe (5 in FIG. 1) to the exhaust hole (X), the cell (C) is formed by joining the cover 10 onto the exhaust hole (X) after exhausting and filling in this state. ) Will be sealed.

여기서 커버(10)는 바람직하기로 기판(F,R) 들과 동일계열, 즉 유리계열 재질인 것이 바람직하며, 접착 또는 소결등의 방법으로 배기구멍(X)상에 접합될 수 있다.The cover 10 is preferably made of the same series as the substrates F and R, that is, a glass-based material, and may be bonded onto the exhaust hole X by bonding or sintering.

그런데 본 발명방법에 의한 밀봉구조는 별도의 배기관을 사용하지 않으므로 배기구멍(X) 주위가 진공 또는 충전유체의 분위기가 된다. 따라서 접착보다는 소결측이 접합방법으로 더욱 적절한바, 이 경우 커버(10)는 열가소성 유리계 재질을 소정형상으로 성형하여 가소성시킨 가소성체인 것이 적절하며, 배기및 충전후의 소결에 의해 배기구멍(X)을 완전히 밀봉시키게 된다.However, since the sealing structure according to the method of the present invention does not use a separate exhaust pipe, the atmosphere around the exhaust hole X becomes a vacuum or an atmosphere of filling fluid. Therefore, the sintered side is more suitable as a bonding method than the bonding method. In this case, the cover 10 is preferably a plastic body formed by molding a thermoplastic glass-based material into a predetermined shape, and the exhaust hole X is formed by sintering after exhausting and filling. Will be completely sealed.

한편 접착제를 사용하는 경우에도 열가소성 접착제를 사용하여 이를 용융및 소성시키는 방법이 적절하다.Meanwhile, even in the case of using the adhesive, a method of melting and firing the same using the thermoplastic adhesive is appropriate.

한편 제4도에는 이와같은 밀봉방법을 구현하는 배기장치가 도시되어 있다.Meanwhile, FIG. 4 shows an exhaust device for implementing the sealing method.

제4도에서, 배기카아트(1)에는 유확산펌프(P1)와 로타리펌프(P2)가 2단으로 접속된 진공펌프가 구비되고, 전환밸브(V)를 통해 배기실(2)이 이 진공펌프에 접속된다.In Fig. 4, the exhaust car art 1 is provided with a vacuum pump in which the diffusion pump P1 and the rotary pump P2 are connected in two stages, and the exhaust chamber 2 is connected to the exhaust chamber 2 through the switching valve V. It is connected to a vacuum pump.

전환밸브(V)는 또한 방전가스 주입구(6)에 접속되어 배기실(2)의 접속을 진공펌프(P1,P2)와 방전가스 주입구(6)에 선택적으로 전환시킴으로써 배기와 충전을 수행하게 된다.The switching valve V is also connected to the discharge gas inlet 6 to selectively exhaust the connection of the exhaust chamber 2 to the vacuum pumps P1 and P2 and the discharge gas inlet 6 to perform exhaust and charging. .

배기카아트(1)상에는 평판표시소자(D)가 그 배기구멍(X)을 하측으로 하여 클램프(clamp; 5)등으로 밀착 고정된다.On the exhaust car art 1, the flat panel display element D is fixed in close contact with a clamp 5 or the like with the exhaust hole X downward.

이 상태에서 배기실(2)은 배기구멍(X) 주위에 밀봉접촉되어 밀폐된 분위기를 형성하게 된다.In this state, the exhaust chamber 2 is sealed in contact with the exhaust hole X to form a sealed atmosphere.

한편 배기실(2) 내부에는 에어실린더(air cylinder)등의 액튜에이터(4)에 의해 승강하는 밀봉헤드(3)가 구비되는데, 밀봉헤드(3) 상에는 배기구멍(X)을 밀봉할 커버(10)가 적재되고 그 내부에는 이를 가열하는 가열부(3a)가 구비된다.On the other hand, inside the exhaust chamber 2, a sealing head 3 which is lifted and lowered by an actuator 4 such as an air cylinder is provided. On the sealing head 3, a cover 10 for sealing the exhaust hole X is provided. ) Is loaded therein and is provided with a heating portion 3a for heating it.

한편 배기실(2)에 의한 배기구멍(X) 주위의 국부적인 배기및 리이크(leak), 그리고 커버(1)부착을 위한 가열시 배기구멍(X) 주위의 급냉(急冷)에 의한 문제점등을 방지하기 위해 평판표시소자(D)의 전외주를 점선과 같이 적절한 시일드(shield; 8)로 감싸주는 것이 바람직하다.On the other hand, problems due to local exhaust and leak around the exhaust hole X by the exhaust chamber 2, and quenching around the exhaust hole X during heating for attaching the cover 1, etc. In order to prevent the problem, it is preferable to wrap the entire outer circumference of the flat panel display device D with a suitable shield 8 such as a dotted line.

이 시일드(8)내의 분위기는 배기실(2)과 연동되어 배기되거나 적절한 감압(減壓)분위기로 유지될 수 있다.The atmosphere in the shield 8 can be exhausted in conjunction with the exhaust chamber 2 or maintained at an appropriate pressure reducing atmosphere.

이와같은 배기장치의 작동은 먼저 배기카아트(1)상에 평판표시소자(D)를 클램프(5)로 고정하며 배기구멍(X) 주위에 배기실(2)이 밀착되어 이를 밀봉하게 된다.The operation of such an exhaust device first fixes the flat panel display element D on the exhaust car art 1 with the clamp 5 and closes the exhaust chamber 2 around the exhaust hole X to seal it.

다음 유확산펌프(P1)와 로타리펌프(P2)등의 진공펌프를 가동하여 평판표시소자(D)를 배기한다.Next, a vacuum pump such as a diffusion pump P1 and a rotary pump P2 is operated to exhaust the flat panel display device D.

배기가 완료되면 전환밸브(V)를 전환시켜 방전가스 주입구(6)를 통해 방전가스등의 작동유체를 주입한다.When the exhaust is completed, the switching valve (V) is switched to inject a working fluid such as discharge gas through the discharge gas inlet (6).

그러면 밀봉헤드(3)내의 가열부(3a)가 작동되어 커버(10) 또는이에 부착된 열가소성 접착제를 용융시키고, 액튜에이터(4)가 연신(延伸)됨으로써 밀봉헤드(3)가 상승하여 커버(10)를 배기구멍(X)상에 접합시킨다.Then, the heating part 3a in the sealing head 3 is operated to melt the cover 10 or the thermoplastic adhesive attached thereto, and the actuator 4 is stretched to raise the sealing head 3 so that the cover ( 10 is bonded on the exhaust hole X.

커버(10)의 접합이 완료되면 배기실(2)을 리이크 시키고 평판표시소자(D)를 반출시킴으로써 한 사이클의 작동이 완료된다.When the bonding of the cover 10 is completed, one cycle of operation is completed by leaking the exhaust chamber 2 and bringing out the flat panel display device D. FIG.

이와같이 본 발명에 의하면 셀의 배기를 위해 별도의 배기관을 부착하는 과정이 불필요하므로 공수의 절감과 취급시의 간편성이 기대되고, 완성된 평판표시소자(D)의 배면으로 배기관(S)의 잔류부가 돌출하지 않게 되므로 회로기판이나 프레임의 설치도 용이하게 밀착시킬수 있게 된다.As described above, according to the present invention, a process of attaching a separate exhaust pipe for exhausting the cell is unnecessary, thereby reducing the man-hours and simplifying handling, and the remaining portion of the exhaust pipe S is formed on the rear surface of the completed flat panel display device D. Since it does not protrude, the installation of a circuit board or a frame can be easily brought into close contact.

이에따라 본 발명은 평판표시소자의 생산성향상과 이를 이용한 화상장치의 간편한 구성에 큰 효과가 있다.Accordingly, the present invention has a great effect on improving the productivity of the flat panel display device and the simple configuration of the image device using the same.

Claims (6)

배면기판에 형성된 배기구멍을 통해 셀내를 배기하고 소요유체를 충전하여 밀봉하는 평판표시소자의 밀봉방법에 있어서, 상기 배기구멍을 통해 상기 배기및 충전을 수행한뒤, 상기 배기구멍 상에 커버를 접합하여 밀봉하는 것을 특징으로 하는 평판표시소자의 밀봉방법.A method of sealing a flat panel display element which exhausts the inside of a cell through an exhaust hole formed in a rear substrate and fills and seals a required fluid, and after the exhaust and filling are carried out through the exhaust hole, a cover is attached onto the exhaust hole. Sealing method for a flat panel display element characterized in that the sealing. 제1항에 있어서, 상기 커버가 접착제에 의해 상기 배기구멍상에 접착되는 것을 특징으로 하는 평판표시소자의 밀봉방법.The flat panel display device sealing method according to claim 1, wherein said cover is adhered to said exhaust hole by an adhesive. 제2항에 있어서, 상기 접착제가 열가소성 유리계 접착제 인것을 특징으로 하는 평판표시소자의 밀봉방법.The method of sealing a flat panel display device according to claim 2, wherein the adhesive is a thermoplastic glass adhesive. 제1항에 있어서, 상기 커버가 열가소성 유리계 재질의 가소성체를 구성되어 상기 배기구멍 상에서 소결되어 접합되는 것을 특징으로 하는 평판표시소자의 밀봉방법.The method of sealing a flat panel display device according to claim 1, wherein the cover is made of a thermoplastic glass-based plastic material and sintered and bonded on the exhaust hole. 평판표시소자를 배기및 밀봉하는 장치에 있어서, 진공펌프(P1,P2)와, 상기 전공펌프(P1,P2)에 선택적으로 접속되며, 적어도 상기 평판표시소자(D)의 배기구멍(X) 주위를 밀봉시키는 배기실(2)과, 그 선단에 커버(10)를 지지하며 이 커버(10)를 가열시키는 가열부(3a)를 구비하여, 액튜에이터(4)에 의해 상기 배기실(2)내부를 승강하는 밀봉헤드(3)를 구비하는 것을 특징으로 하는 평판표시소자의 배기장치.An apparatus for evacuating and sealing a flat panel display element, which is selectively connected to the vacuum pumps (P1, P2) and the electric pumps (P1, P2) and at least around the exhaust hole (X) of the flat panel display element (D). An exhaust chamber (2) for sealing the lid, and a heating portion (3a) for supporting the cover (10) at its tip and heating the cover (10), and the inside of the exhaust chamber (2) by the actuator (4). And a sealing head (3) for raising and lowering the exhaust device of the flat panel display element. 제5항에 있어서, 상기 평판표시소자(D)의 전 주위를 둘러싸는 시일드(8)가 구비되는 것을 특징으로 하는 평판표시소자의 배기장치.The exhaust device of a flat panel display element according to claim 5, wherein a shield (8) surrounding the entire circumference of the flat panel display element (D) is provided.
KR1019940024639A 1994-09-29 1994-09-29 Sealing method and exhausting apparatus for flat palel display KR0142822B1 (en)

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