KR20040061436A - Double tube lamp - Google Patents

Double tube lamp Download PDF

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Publication number
KR20040061436A
KR20040061436A KR1020020087700A KR20020087700A KR20040061436A KR 20040061436 A KR20040061436 A KR 20040061436A KR 1020020087700 A KR1020020087700 A KR 1020020087700A KR 20020087700 A KR20020087700 A KR 20020087700A KR 20040061436 A KR20040061436 A KR 20040061436A
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KR
South Korea
Prior art keywords
wire
lamp
tube
inner tube
electrode
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Application number
KR1020020087700A
Other languages
Korean (ko)
Inventor
유중근
Original Assignee
비오이 하이디스 테크놀로지 주식회사
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Priority to KR1020020087700A priority Critical patent/KR20040061436A/en
Publication of KR20040061436A publication Critical patent/KR20040061436A/en

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Classifications

    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133612—Electrical details
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock

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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)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: A double pipe lamp is provided to form a wire part crossing a gap between an inner pipe and an outer pipe in spring structure, so as to prevent a lamp from being broken when the lamp is frequently turned on/off, thereby improving reliability. CONSTITUTION: An inner pipe(10) is filled with a neon gas and an argon gas, and is installed with an electrode(30). An outer pipe(20) protects the inner pipe(10) by being spaced from the inner pipe(10) at certain intervals. A wire(50) pierces through the inner pipe(10) and the outer pipe(20) in connection with the electrode(30), and is protruded outside. A predetermined part of the wire(50) is in spring structure. A force generated from the wire(50) is received in the spring part, to prevent the force from being applied to the inner pipe(10).

Description

이중관 램프{Double tube lamp}Double tube lamp {Double tube lamp}

본 발명은 이중관 램프에 관한 것으로, 보다 상세하게는 LCD모듈의 광원체로 사용하는 백라이트 유니트에 채용되는 이중관 램프의 전극 와이어가 수축 팽창으로 인한 램프의 깨짐을 방지하기 위한 이중관 램프에 관한 것이다.The present invention relates to a double tube lamp, and more particularly to a double tube lamp for preventing the breakage of the lamp due to shrinkage expansion of the electrode wire of the double tube lamp employed in the backlight unit used as the light source body of the LCD module.

통상적으로, 디스플레이(display)는 크게 발광형과 수광형으로 분류한다. 발광형으로는 음극선관, 플라즈마 디스플레이패널, 전자발광소자, 형광표시장치, 발광다이오드 등이 있다. 수광형으로는 액정 디스플레이(liquid crystal display)가 있다.In general, a display is classified into a light emitting type and a light receiving type. The light emitting type includes a cathode ray tube, a plasma display panel, an electroluminescent device, a fluorescent display device, a light emitting diode, and the like. The light receiving type is a liquid crystal display.

이중에서, 액정 디스플레이는 그 자체가 발광하여 화상을 형성하지 못하고,외부로부터 빛이 입사되어 화상을 형성하는 수광형 디스플레이이므로, 어두운 곳에서는 화상을 관찰할 수 없는 문제점이 있다.Among them, the liquid crystal display itself does not emit light to form an image, and since it is a light receiving type display in which light is incident from the outside to form an image, there is a problem in that an image cannot be observed in a dark place.

이러한 문제점을 해결하기 위하여 액정 디스플레이의 배면에는 백라이트 유니트(back light unit)가 설치되어 빛을 조사한다. 이에 따라, 어두운 곳에서도 화상을 구현할 수 있다.In order to solve this problem, a back light unit is installed on the back of the liquid crystal display to irradiate light. Accordingly, an image can be realized even in a dark place.

백라이트 유니트에는 냉음극 형광램프(Cold Cathode Fluorescent Lamp: CCFL)를 배치하는 방식 및 형광체가 도포된 상하기판을 조립한 평판 형광램프 방식이 널리 사용되고 있다. 냉음극 형광램프를 배치하는 방식은 표시면에 대한 광원의 배치에 따라서 도광판(plastic light guide)을 사용하는 가장자리 발광(edge light) 방식 및 평면에 중첩 배열하는 직하 발광(direct light) 방식으로 구별할 수 있다.Background Art [0002] Cold Cathode Fluorescent Lamps (CCFLs) and flat panel fluorescent lamps incorporating phosphor-coated upper and lower substrates are widely used in the backlight unit. The arrangement of cold cathode fluorescent lamps can be divided into an edge light method using a plastic light guide and a direct light method superimposed on a plane according to the arrangement of the light source on the display surface. Can be.

이와 같은 백라이트 유니트에 적용되는 냉음극 형광램프(CCFL)를 수명연장시키기 위해 주로 이중관 램프 구조로 하고 있다.In order to extend the life of a cold cathode fluorescent lamp (CCFL) applied to such a backlight unit, it is mainly a double tube lamp structure.

그 이중관 램프는 도 1에 도시된 바와 같이, 내부가 네온(Ne) 및 아르곤(Ar) 가스로 충진되고 전극(30)이 설치된 내부관(10); 그 내부관(10)의 외측면과 소정 간격 이격되면서 그 내부관(10)을 보호하는 외부관(20); 및 그 전극(30)과 연결되면서 내부관(10) 및 외부관(20)을 관통하여 외부로 돌출된 와이어(40)로 구성된다.The double tube lamp, as shown in Figure 1, the inner tube 10 is filled with neon (Ne) and argon (Ar) gas and the electrode 30 is installed; An outer tube 20 which protects the inner tube 10 while being spaced apart from the outer surface of the inner tube 10 by a predetermined interval; And a wire 40 which is connected to the electrode 30 and protrudes to the outside through the inner tube 10 and the outer tube 20.

여기서, 외부관(20)은 외기에 노출되어 있고, 내부관(10)은 외부관(20)으로 감싸인다. 그 내부관(10)과 외부관(20)은 어느 정도의 갭(gap)이 있으며, 그 내부관(10)과 외부관(20) 사이는 진공으로 되어 있다. 그 와이어(40)는 내부관(10)과외부관(20)과 완전 밀착되어 있다.Here, the outer tube 20 is exposed to the outside air, the inner tube 10 is wrapped in the outer tube (20). The inner tube 10 and the outer tube 20 have some gaps, and the inner tube 10 and the outer tube 20 are vacuumed. The wire 40 is in close contact with the inner tube 10 and the outer tube 20.

이와 같이 구성된 종래의 이중관 램프에서, 내부관(10)은 외부관(20)에 의해 보호되고 다시 내부관(10)과 외부관(20) 사이의 진공에 의해 보호를 받는다. 그 내부관(10)은 외부관(20)의 급격한 온도변화에도 별 영향을 받지 않지만 전극(30) 및 와이어(40)는 도체로서 열 전도율이 매우 높기 때문에 온도의 영향에 민감하다. 즉, 램프를 켰다가 끄고 외기의 온도가 차가운 날씨라면 외부관(20)은 온도에 의해서 수축하게 된다. 그에 따라, 전극(30)과 연결되어 있는 와이어(40)도 열 전도율이 높기 때문에 급격하게 식으면서 수축하게 된다. 이때, 일직선으로 된 와이어(40)는 수축을 하면서 길이가 줄어 들게 되어 내부관(10)을 당기게 된다. 그 내부관(10)이 당겨지게 되면 그 내부관(10)은 텐션(tension)의 힘을 받아서 깨지게 된다.In the conventional double tube lamp configured as described above, the inner tube 10 is protected by the outer tube 20 and again by the vacuum between the inner tube 10 and the outer tube 20. The inner tube 10 is not affected by the rapid temperature change of the outer tube 20, but the electrode 30 and the wire 40 are sensitive to the influence of temperature because the thermal conductivity is very high as a conductor. That is, if the lamp is turned on and off and the temperature of the outside air is cold, the outer tube 20 is contracted by the temperature. Accordingly, the wire 40 connected to the electrode 30 also contracts while cooling rapidly due to high thermal conductivity. At this time, the straight wire 40 is reduced in length while shrinking to pull the inner tube (10). When the inner tube 10 is pulled, the inner tube 10 is broken under the force of tension.

이에 본 발명은 상기 종래기술의 제반 문제점을 해결하기 위하여 안출한 것으로, 온도변화에 따른 와이어의 수축 팽창에도 외부관의 깨짐을 방지할 수 있도록 한 이중관 램프를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems of the prior art, it is an object of the present invention to provide a double tube lamp to prevent the breakage of the outer tube even in shrinkage expansion of the wire due to temperature changes.

도 1은 종래 이중관 램프의 문제점을 설명하기 위한 도면.1 is a view for explaining the problem of the conventional double tube lamp.

도 2는 본 발명에 따른 이중관 램프를 도시한 도면.Figure 2 shows a double tube lamp according to the present invention.

[도면부호의 설명][Description of Drawing Reference]

10 : 내부관 20 : 외부관10: inner tube 20: outer tube

30 : 전극 40, 50 : 와이어30: electrode 40, 50: wire

상기와 같은 목적을 달성하기 위하여 본 발명에 따른 이중관 램프는, 내부에 전극이 설치된 내부관, 상기 내부관을 보호하는 외부관, 및 상기 전극과 연결되면서 상기 내부관 및 외부관을 관통하여 외부로 돌출된 와이어를 구비한 이중관 램프에 있어서,In order to achieve the above object, the double tube lamp according to the present invention is connected to the inner tube and the outer tube through the inner tube and the outer tube while the electrode is installed inside, the outer tube to protect the inner tube, and the electrode. In a double tube lamp with protruding wire,

상기 내부관과 외부관 사이를 가로지르는 상기 와이어의 부분이 스프링 구조로 된 것을 특징으로 한다.The portion of the wire that crosses between the inner tube and the outer tube is characterized in that the spring structure.

(실시예)(Example)

이하, 본 발명의 실시예에 따른 이중관 램프에 대하여 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, a double tube lamp according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 이중관 램프를 도시한 도면으로서, 내부가 네온(Ne) 및 아르곤(Ar) 가스로 충진되고 전극(30)이 설치된 내부관(10); 그 내부관(10)의 외측면과 소정 간격 이격되면서 그 내부관(10)을 보호하는 외부관(20); 및 그 전극(30)과 연결되면서 내부관(10) 및 외부관(20)을 관통하여 외부로 돌출하되 소정 부위가 스프링 구조로 된 와이어(50)로 구성된다.2 is a view showing a double tube lamp according to the present invention, the inner tube 10 is filled with neon (Ne) and argon (Ar) gas and the electrode 30 is installed; An outer tube 20 which protects the inner tube 10 while being spaced apart from the outer surface of the inner tube 10 by a predetermined interval; And it is connected to the electrode 30 and penetrates through the inner tube 10 and the outer tube 20 to the outside, a predetermined portion is composed of a wire 50 having a spring structure.

여기서, 그 내부관(10)과 외부관(20) 사이를 가로지르는 와이어(50)의 부위가 스프링 구조로 되어 있다.Here, the site | part of the wire 50 which crosses between the inner pipe | tube 10 and the outer pipe | tube 20 is a spring structure.

이와 같이 구성된 본 발명의 이중관 램프에 의하면, 일직선으로 된 와이어를 스프링 구조로 함에 따라 와이어(50)에 의해서 생기는 힘을 스프링 부분이 받게 되므로 내부관(10)에는 전달되지 않게 된다. 그 반대의 경우에도 마찬가지이다. 즉, 램프를 켰을 때 내부관(10)에 전극(30)이 있기 때문에 내부관(10)의 온도가 먼저 상승하게 된다. 그러면 전극(30)에서 발생된 열로 인해서 와이어(50)가 팽창하게 되고, 그 팽창된 와이어(50)는 외부관(20)을 밀게 된다. 이때, 그 내부관(10)과 외부관(20) 사이의 와이어(50)가 스프링 구조로 되어 있기 때문에 팽창으로 인해 생기는 힘을 스프링 부분이 흡수하게 되어 외부관(20)은 깨지지 않게 된다.According to the double tube lamp of the present invention configured as described above, since the spring portion is subjected to the force generated by the wire 50 as the straight wire is a spring structure is not transmitted to the inner tube (10). The reverse is also true. That is, since the electrode 30 is in the inner tube 10 when the lamp is turned on, the temperature of the inner tube 10 rises first. Then, the wire 50 expands due to the heat generated by the electrode 30, and the expanded wire 50 pushes the outer tube 20. At this time, since the wire 50 between the inner tube 10 and the outer tube 20 has a spring structure, the spring portion absorbs the force generated by the expansion, so that the outer tube 20 is not broken.

그리고, 외기의 온도가 차가운 날씨라면 외부관(20)은 온도에 의해서 수축하게 된다. 그에 따라, 전극(30)과 연결되어 있는 와이어(50)도 급격하게 식으면서 수축하게 된다. 그 수축된 와이어(50)는 내부관(10)을 잡아 당기게 되겠지만, 스프링 구조로 된 부분이 수축력을 흡수하게 되므로 그 내부관(10)은 깨지지 않게 된다.And, if the temperature of the outside air is cold weather, the outer tube 20 is contracted by the temperature. Accordingly, the wire 50 connected to the electrode 30 also contracts while cooling rapidly. The contracted wire 50 will pull the inner tube 10, but since the portion of the spring structure absorbs the contracting force, the inner tube 10 is not broken.

상기에서 설명한 바와 같이, 본 발명에 따른 이중관 램프에 있어서는 다음과 같은 효과가 있다.As described above, the double tube lamp according to the present invention has the following effects.

본 발명에 따른 이중관 램프는, 램프를 수시로 온/오프할 때 램프가 깨지는 것을 막을 수 있어서 신뢰성이 향상된다.The double tube lamp according to the present invention can prevent the lamp from breaking when the lamp is frequently turned on / off, thereby improving reliability.

그리고, 종래에는 와이어의 수축 및 팽창으로 인해 램프에 미세한 크랙(crack)이 발생되고 그 미세한 크랙으로 서서히 공기가 침투하여 몇 일 또는 몇 달후에 램프가 빛을 내지 못하는 경우가 발생되는데, 본 발명은 원천적으로 램프의 깨짐을 방지할 수 있으므로 이러한 경우의 발생을 막을 수 있게 된다.In the related art, a minute crack occurs in the lamp due to shrinkage and expansion of the wire, and air gradually penetrates into the minute crack, and thus the lamp does not emit light after several days or months. It is possible to prevent the breakage of the lamp at the source, thereby preventing the occurrence of such a case.

한편, 본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.

Claims (1)

내부에 전극이 설치된 내부관, 상기 내부관을 보호하는 외부관, 및 상기 전극과 연결되면서 상기 내부관 및 외부관을 관통하여 외부로 돌출된 와이어를 구비한 이중관 램프에 있어서,A double tube lamp having an inner tube having an electrode installed therein, an outer tube protecting the inner tube, and a wire connected to the electrode and protruding outwardly through the inner tube and the outer tube, 상기 내부관과 외부관 사이를 가로지르는 상기 와이어의 부분이 스프링 구조로 된 것을 특징으로 하는 이중관 램프.A double tube lamp, characterized in that the portion of the wire across the inner tube and the outer tube has a spring structure.
KR1020020087700A 2002-12-31 2002-12-31 Double tube lamp KR20040061436A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100717187B1 (en) * 2004-11-30 2007-05-11 비오이 하이디스 테크놀로지 주식회사 Dual structure fluorescent lamp of backlight unit for LCD
WO2010131790A1 (en) * 2009-05-15 2010-11-18 Jo Jung-Yeul Dual external electrode fluorescent lamp and manufacturing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100717187B1 (en) * 2004-11-30 2007-05-11 비오이 하이디스 테크놀로지 주식회사 Dual structure fluorescent lamp of backlight unit for LCD
WO2010131790A1 (en) * 2009-05-15 2010-11-18 Jo Jung-Yeul Dual external electrode fluorescent lamp and manufacturing method thereof
US8568185B2 (en) 2009-05-15 2013-10-29 Cheongyeol Cho Dual external electrode fluorescent lamp and manufacturing method thereof

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