KR20100061141A - Multi-cell flat fluorescent lamp without seperating wall - Google Patents

Multi-cell flat fluorescent lamp without seperating wall Download PDF

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KR20100061141A
KR20100061141A KR1020080120040A KR20080120040A KR20100061141A KR 20100061141 A KR20100061141 A KR 20100061141A KR 1020080120040 A KR1020080120040 A KR 1020080120040A KR 20080120040 A KR20080120040 A KR 20080120040A KR 20100061141 A KR20100061141 A KR 20100061141A
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electrode
cell
light source
cells
source lamp
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KR1020080120040A
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Korean (ko)
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우승일
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희성전자 주식회사
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Publication of KR20100061141A publication Critical patent/KR20100061141A/en

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    • 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
    • G02F1/133604—Direct backlight with lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/22—Electrodes, e.g. special shape, material or configuration
    • H01J11/28—Auxiliary electrodes, e.g. priming electrodes or trigger electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/34—Vessels, containers or parts thereof, e.g. substrates
    • H01J11/36—Spacers, barriers, ribs, partitions or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/48—Sealing, e.g. seals specially adapted for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Materials Engineering (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: A multi-cell flat fluorescent lamp without a separation wall is provided to widen a gap between electrodes using a T-shape electrode in order to maintain the flow of effective discharging current and reduce a displacement current. CONSTITUTION: A plurality of ball spacers(102) supports an upper substrate and a lower substrate. A sealant seals the upper substrate and the lower substrate in order to form a discharging space including discharging gas. A plurality of auxiliary electrodes divides the discharging space into a plurality of cells. The cells separately drive to generate wall charges. An X electrode(140) and an Y electrode(150) including a T-shape protrusion is formed on the upper substrate or the lower substrate and light the cells.

Description

격벽을 갖지 않는 멀티셀 면광원 램프{MULTI-CELL FLAT FLUORESCENT LAMP WITHOUT SEPERATING WALL}MULTI-CELL FLAT FLUORESCENT LAMP WITHOUT SEPERATING WALL}

본 발명은 디스플레이장치에서 광원으로 사용되는 형광램프에 관한 것으로, 더욱 상세하게는 멀티셀 구조의 면광원 램프에서 셀을 구분하기 위한 격벽을 갖지 않는 멀티셀 면광원 램프에 관한 것이다.The present invention relates to a fluorescent lamp used as a light source in a display device, and more particularly to a multi-cell surface light source lamp having no partition wall for distinguishing cells in a surface light source lamp of a multi-cell structure.

일반적으로, 액정표시장치 등의 광원으로 사용되는 백라이트(Back Light)는 원통형 램프(CCFL 등)를 배치하는 방식으로 직하형과 에지형이 있다. 직하형 방식(Direct-lighting)은 평면에 형광램프를 배치하는 것으로, 형광램프의 형상이 액정패널에 나타나므로 램프와 액정 사이의 공간을 충분히 확보하여 유지시켜주어야 하고, 전체적으로 균일한 광량분포를 위해 광산란 수단을 별도로 설치해야 하므로 박형화에 한계가 있다. 에지형 방식(Edge-lighting)은 평판의 외곽에 형광램프를 설치한 후 도광판(Light Guide Pannel)을 이용하여 전체면으로 빛을 분산시키는 것으로, 휘도가 낮은 문제점이 있으며 도광판에 대한 고도의 광학적 가공기술이 요구 된다.In general, a backlight used as a light source such as a liquid crystal display device has a direct type and an edge type by arranging a cylindrical lamp (CCFL, etc.). Direct-lighting is the arrangement of fluorescent lamps on a flat surface. Since the shape of fluorescent lamps appears on the liquid crystal panel, the space between the lamp and the liquid crystal should be secured and maintained for a uniform light distribution. Since the light scattering means must be installed separately, there is a limit to thinning. Edge-lighting is a method of distributing light to the entire surface by using a light guide panel after installing a fluorescent lamp on the outer side of a flat plate. There is a problem of low luminance and high optical processing of the light guide plate. Skill is required.

최근에는 종래의 이러한 문제점들을 해결하고 고휘도의 백라이트를 제공하기 위하여 패널의 표시면에 대향하는 평면 전체가 발광하는 면광원 램프(Flat Fluorescent Lamps)가 널리 개발되고 있으며, 이 중에서도 공해를 유발하지 않으면서 휘도과 효율을 높이기 위하여 전극의 간격을 증가시킨 구조(Long gap)의 무수은 면광원 램프에 대한 연구가 활발하게 진행되고 있다. 또한 에너지의 효율적인 이용을 위해 방전공간을 격벽에 의해 분리한 멀티셀 구조의 면광원 램프에 대한 연구도 활발히 진행되고 있다. Recently, in order to solve these problems and provide a backlight with high brightness, flat fluorescence lamps in which the entire flat surface facing the display surface of the panel emits light have been widely developed. In order to increase brightness and efficiency, research on a mercury-free surface light source lamp having a long gap has been actively conducted. In addition, research is being actively conducted on the surface light source lamp of the multi-cell structure in which the discharge space is separated by the partition wall for efficient use of energy.

종래의 멀티셀 면광원 램프(10)는 도 1 및 도 2에 도시된 바와 같이, 서로 마주보는 상부 유리기판(11)과 하부 유리기판(12)이 밀봉제(19)에 의하여 밀폐되어 방전공간을 형성하고 있고, 방전공간은 격벽(18)에 의해 분리되어 멀티 셀 구조를 형성하고 있다. 도 1에서 상부 유리기판(11)의 내측에는 형광물질(13)이 부착되어 있고, 하부 유리기판(12)에는 전극(14,15)을 절연시키며 빛을 반사하는 반사물질(17)이 부착되어 있다. 즉, 멀티셀 면광원 램프(10)는 유지 전극(14,15) 근처에 보조 전극(16)을 두어 낮은 전압으로 양 전극간 초기 방전이 발생하게 되고, 이후 유지 전극(14,15)을 통해 램프 전면으로 방전을 확장시켜 점등상태를 유지하게 되는데, 전극이 스트립(stripe)형인 램프를 멀티셀 구조로 제작 시에는 격벽(18)이 필요하게 된다.In the conventional multicell surface light source lamp 10, as shown in FIGS. 1 and 2, the upper glass substrate 11 and the lower glass substrate 12 facing each other are sealed by a sealant 19 to discharge space. The discharge space is separated by the partition 18 to form a multi-cell structure. In FIG. 1, a fluorescent material 13 is attached to an inner side of the upper glass substrate 11, and a reflective material 17 that insulates the electrodes 14 and 15 and reflects light is attached to the lower glass substrate 12. have. That is, in the multi-cell surface light source lamp 10, the auxiliary electrode 16 is disposed near the sustain electrodes 14 and 15 to generate an initial discharge between the two electrodes at a low voltage, and then through the sustain electrodes 14 and 15. The discharge is extended to the front of the lamp to maintain the lighting state. When the lamp of which the electrode is strip type is manufactured in a multi-cell structure, the partition wall 18 is required.

그리고 격벽(18)에 의해 구분된 각 방전공간(셀)은 X전극(14)과 Y전극(15)이 서로 대향하고 있고, X전극(14)과 Y전극(15) 사이에는 유리기판을 사이에 두고 격 리되어 보조전극(16)이 위치하고 있다. 면광원 램프(10)에서 보조전극(16)은 전극간의 거리가 멀기 때문에 양광주(Positive column) 비율이 높아져 고효율을 갖게 되나 방전개시전압이 높아지는 롱 갭(Long gap) 구조의 문제점을 해소하기 위한 것이다.In the discharge spaces (cells) divided by the partition walls 18, the X electrode 14 and the Y electrode 15 face each other, and a glass substrate is interposed between the X electrode 14 and the Y electrode 15. It is isolated to the auxiliary electrode 16 is located. In the surface light source lamp 10, since the auxiliary electrodes 16 have a long distance between the electrodes, the ratio of positive columns increases, resulting in high efficiency, but to solve the problem of the long gap structure in which the discharge start voltage is increased. will be.

종래의 멀티 셀 면광원 램프는 격벽에 의해 방전공간이 구분되어 멀티 셀을 형성하므로 격벽 설치에 따른 제조공정의 복잡화로 인해 비용이 많이 드는 문제점이 있다. In the conventional multi-cell surface light source lamp, since the discharge space is divided by the partition to form the multi-cell, there is a problem in that the cost is complicated due to the complexity of the manufacturing process according to the installation of the partition.

본 발명은 상기와 같은 문제점을 해소하기 위해 제안된 것으로, 본 발명의 목적은 멀티 셀 구조의 면광원 램프에서 셀을 구분하기 위한 격벽을 갖지 않는 멀티셀 면광원 램프를 제공하는 것이다.The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a multi-cell surface light source lamp that does not have a partition wall for distinguishing cells in a surface light source lamp of a multi-cell structure.

상기와 같은 목적을 달성하기 위하여 본 발명의 면광원 램프는, 형광물질이 도포된 상부기판; 반사물질이 도포된 하부기판; 상기 상부기판과 상기 하부기판을 지지하기 위한 다수의 볼 스페이서; 상기 상부기판과 상기 하부기판을 밀봉하여 방전가스가 포함된 방전공간을 형성하는 밀봉제; 상기 방전공간을 다수의 셀로 구분하여 각 셀을 분할 구동하여 벽전하를 생성시키는 다수의 보조전극; 및 상기 상부 기판이나 상기 하부기판에 T자형 돌기를 갖고 형성되어 다수의 셀로 구분된 방전공간을 함께 구동하여 벽전하가 생성된 셀들을 점등시키는 X,Y 전극을 포함하여 T형 돌기전극을 사용하므로 플라즈마의 확산손실을 줄이고, 상기 볼 스페이서에 의해 방전공간을 유지하여 격벽을 제거할 수 있도록 된 것을 특징으로 한다.In order to achieve the above object, the surface light source lamp of the present invention, the upper substrate is coated with a fluorescent material; A lower substrate coated with a reflective material; A plurality of ball spacers for supporting the upper substrate and the lower substrate; A sealant sealing the upper substrate and the lower substrate to form a discharge space containing a discharge gas; A plurality of auxiliary electrodes for dividing the discharge space into a plurality of cells and dividing each cell to generate wall charges; Since the upper substrate or the lower substrate is formed with a T-shaped projections to drive the discharge space divided into a plurality of cells together, X, Y electrodes to light the cells generated wall charges T-type projection electrodes are used because Reducing the diffusion loss of the plasma, it is characterized in that it is possible to remove the partition wall by maintaining the discharge space by the ball spacer.

또한 상기 보조전극들은 각 셀마다 개별적으로 구동되어 휘도 조절 및 선택적 부분 발광이 가능하도록 된 것이다.In addition, the auxiliary electrodes are individually driven for each cell to enable brightness adjustment and selective partial light emission.

본 발명에 따른 면광원 램프는 양단 전극간 간격을 증가시킨 롱 갭(Long gap) 구조의 무수은 면광원 램프에서 T자형 전극을 사용하여 효과적인 방전 전류의 흐름을 유지하되 변위전류를 줄여주어 전극간 갭(gap)을 넓힐 수 있고, 셀과 셀 사이에 격벽이 없는 구조를 가능하게 한다.The surface light source lamp according to the present invention maintains an effective discharge current flow while using a T-shaped electrode in a long gap (mercury) surface light source lamp having a long gap structure that increases the distance between electrodes at both ends, thereby reducing the displacement current, thereby reducing the gap between electrodes. It can widen the gap and enable a structure without a partition between cells.

또한 본 발명의 면광원 램프는 효과적인 방전전류의 흐름을 유지하되 변위 전류를 줄여주어 플라즈마 확산 손실을 방지하고, 격벽을 사용하지 않으므로 램프구조의 단순화 및 공정의 단순화를 가능하게 한다.In addition, the surface light source lamp of the present invention maintains an effective flow of the discharge current, but reduces the displacement current to prevent plasma diffusion loss, and since the partition wall is not used, the lamp structure and the process can be simplified.

본 발명과 본 발명의 실시에 의해 달성되는 기술적 과제는 다음에서 설명하는 본 발명의 바람직한 실시예들에 의하여 보다 명확해질 것이다. 다음의 실시예들은 단지 본 발명을 설명하기 위하여 예시된 것에 불과하며, 본 발명의 범위를 제 한하기 위한 것은 아니다. The technical problems achieved by the present invention and the practice of the present invention will be more clearly understood by the preferred embodiments of the present invention described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention.

도 3a 및 3b는 본 발명에 따른 격벽을 갖지 않는 멀티 셀 면광원 램프를 도시한 단면도이고, 도 4는 본 발명에 따른 격벽을 갖지 않는 멀티 셀 면광원 램프를 도시한 평면도이며, 도 5는 본 발명에 따른 격벽을 갖지 않는 멀티 셀 면광원 램프의 구동개념을 도시한 개략도이다. 도 3a는 하부 유리기판(12)에 X,Y 전극이 형성된 예이고, 도 3b는 상부 유리기판(11)에 X,Y 전극이 형성된 예이다.3A and 3B are cross-sectional views showing a multi-cell surface light source lamp without a partition according to the present invention, and FIG. 4 is a plan view showing a multi-cell surface light source lamp without a partition according to the present invention, and FIG. It is a schematic diagram which shows the driving concept of the multi-cell surface light source lamp which does not have the partition which concerns on this invention. 3A illustrates an example in which X and Y electrodes are formed on the lower glass substrate 12, and FIG. 3B illustrates an example in which X and Y electrodes are formed on the upper glass substrate 11.

본 발명에 따른 멀티 셀 면광원 램프(100)는 도 3a, 3b 및 도 4에 도시된 바와 같이, 상부 유리기판(11)과 하부 유리기판(12)이 볼 스페이서(102)에 의해 지지되면서 밀봉제(19)에 의해 밀봉되어 방전공간을 형성하고 있고, 방전공간에는 제논(Xe)과 같은 무수은 방전가스가 분포되어 있으며, 상부 유리기판(11)의 내측면(방전공간을 형성하는 면)에는 형광물질(13)이 도포되어 있다.The multi-cell surface light source lamp 100 according to the present invention is sealed while the upper glass substrate 11 and the lower glass substrate 12 are supported by the ball spacer 102 as shown in FIGS. 3A, 3B and 4. It is sealed by the (19) to form a discharge space, mercury discharge gas such as xenon (Xe) is distributed in the discharge space, the inner surface (surface forming the discharge space) of the upper glass substrate 11 The fluorescent substance 13 is apply | coated.

하부 유리기판(12)의 내측면(방전공간을 형성하는 면)이나 상부 유리기판(11)의 내측면(방전공간을 형성하는 면)에는 각 셀을 구동하기 위한 X전극(140)과 Y전극(150)이 배치되어 있으며, X전극(140)과 Y전극(150)은 T자형의 전극돌기(142,152)를 포함하고 있다. 그리고 하부 유리기판(12)에는 절연기능과 반사기능을 갖는 물질(17)이 도포되어 형광체에 의해 발생된 빛을 전방(상부 유리기판측)으로 반사시키는 기능을 한다. 또한 하부 유리기판(12)의 외측면에는 보조전극(16)이 부착되어 각 셀을 분할구동함과 아울러 X,Y 전극 사이의 방전 개시전압을 낮추어주는 기능을 한다.On the inner side surface of the lower glass substrate 12 (surface forming the discharge space) or the inner side surface of the upper glass substrate 11 (surface forming the discharge space), the X electrode 140 and the Y electrode for driving each cell 150 is disposed, and the X electrode 140 and the Y electrode 150 include T-shaped electrode protrusions 142 and 152. The lower glass substrate 12 is coated with a material 17 having an insulating function and a reflecting function to reflect light generated by the phosphor to the front side (upper glass substrate side). In addition, the auxiliary electrode 16 is attached to the outer surface of the lower glass substrate 12 to divide and drive each cell, and to lower the discharge start voltage between the X and Y electrodes.

도 4를 참조하면, 제 1 셀은 보조전극에 구동전원(Z1)이 인가되면 벽전하를 생성시키고, 서로 대향하고 있는 X전극(140)과 Y전극(150)에 전압이 인가되면 X전극의 T자형 돌기(142)와 Y 전극의 T자형 돌기(152)에 의해 방전이 이루어져 방전가스에서 자외선을 방출하게 되고, 자외선이 제1 셀의 형광물질을 자극하여 제 1 셀이 빛을 발생하게 된다. 제 2 셀은 보조전극에 구동전원(Z2)이 인가되면 벽전하를 생성시키고, 서로 대향하고 있는 X전극(140)과 Y전극(150)에 전압이 인가되면 X전극의 T자형 돌기(142)와 Y 전극의 T자형 돌기(152)에 의해 방전이 이루어져 방전가스에서 자외선을 방출하게 되고, 자외선이 제2 셀의 형광물질을 자극하여 제 2 셀이 빛을 발생하게 된다. 제 3 셀은 보조전극에 구동전원(Z3)이 인가되면 벽전하를 생성시키고, 서로 대향하고 있는 X전극(140)과 Y전극(150)에 전압이 인가되면 X전극의 T자형 돌기(142)와 Y 전극의 T자형 돌기(152)에 의해 방전이 이루어져 방전가스에서 자외선을 방출하게 되고, 자외선이 제 3 셀의 형광물질을 자극하여 제 3 셀이 빛을 발생하게 된다. 제 4 셀은 보조전극에 구동전원(Z4)이 인가되면 벽전하를 생성시키고, 서로 대향하고 있는 X전극(140)과 Y전극(150)에 전압이 인가되면 X전극의 T자형 돌기(142)와 Y 전극의 T자형 돌기(152)에 의해 방전이 이루어져 방전가스에서 자외선을 방출하게 되고, 자외선이 제 4 셀의 형광물질을 자극하여 제 4 셀이 빛을 발생하게 된다.Referring to FIG. 4, when the driving power Z1 is applied to the auxiliary electrode, the first cell generates wall charges, and when a voltage is applied to the X electrode 140 and the Y electrode 150 that face each other, The discharge is generated by the T-shaped protrusion 142 and the T-shaped protrusion 152 of the Y electrode to emit ultraviolet rays from the discharge gas, and the ultraviolet rays stimulate the fluorescent material of the first cell to generate light. . The second cell generates wall charges when the driving power Z2 is applied to the auxiliary electrode, and when the voltage is applied to the X electrode 140 and the Y electrode 150 facing each other, the T-shaped protrusion 142 of the X electrode. The discharge is generated by the T-shaped protrusion 152 of the Y electrode and emits ultraviolet rays from the discharge gas. The ultraviolet rays stimulate the fluorescent material of the second cell to generate light. The third cell generates wall charges when the driving power Z3 is applied to the auxiliary electrode, and when the voltage is applied to the X electrode 140 and the Y electrode 150 facing each other, the T-shaped protrusion 142 of the X electrode. The discharge is generated by the T-shaped protrusions 152 of the Y electrode and emits ultraviolet rays from the discharge gas, and the ultraviolet rays stimulate the fluorescent material of the third cell to generate light. The fourth cell generates wall charges when the driving power Z4 is applied to the auxiliary electrode, and when the voltage is applied to the X electrode 140 and the Y electrode 150 facing each other, the T-shaped protrusion 142 of the X electrode. The discharge is generated by the T-shaped protrusion 152 of the Y electrode and emits ultraviolet rays from the discharge gas. The ultraviolet rays stimulate the fluorescent material of the fourth cell to generate light.

이와 같은 본 발명의 격벽을 갖지 않는 멀티 셀 면광원 램프는 도 5에 도시된 바와 같이, 면광원 램프(100)가 서로 구분된 4개의 보조전극에 각각의 구동신호(Z1~Z4)를 제공하여 해당 셀에 벽전하를 생성시킨 후, X전극(140)과 Y전극(150) 을 구동시켜 해당 셀들을 각각 개별적으로 점등시킴으로써 멀티 셀 구조의 분할구동을 가능하게 한다. 도 5를 참조하면, 램프구동부(20)는 면광원램프(100)의 보조전극에 Z1~Z4의 분할 구동신호를 인가한 후, X전극(140)과 Y전극(150)을 동시에 구동하여 각 셀들을 분할하여 구동할 수 있다. As shown in FIG. 5, the multi-cell surface light source lamp having no barrier rib according to the present invention provides the driving signals Z1 to Z4 to four auxiliary electrodes in which the surface light source lamps 100 are separated from each other. After the wall charges are generated in the corresponding cells, the X electrodes 140 and the Y electrodes 150 are driven to individually light the corresponding cells, thereby enabling the division driving of the multi-cell structure. Referring to FIG. 5, the lamp driver 20 applies a divided driving signal of Z1 to Z4 to the auxiliary electrode of the surface light source lamp 100, and simultaneously drives the X electrode 140 and the Y electrode 150. The cells can be divided and driven.

이상에서 본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나, 본 기술분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. The present invention has been described above with reference to one embodiment shown in the drawings, but those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

도 1은 종래의 멀티 셀 면광원 램프의 단면도,1 is a cross-sectional view of a conventional multi-cell surface light source lamp,

도 2는 종래의 멀티 셀 면광원 램프의 평면도,2 is a plan view of a conventional multi-cell surface light source lamp,

도 3a 및 3b는 본 발명에 따른 멀티 셀 면광원 램프의 단면도,3A and 3B are cross-sectional views of a multi-cell surface light source lamp according to the present invention;

도 4는 본 발명에 따른 멀티 셀 면광원 램프의 평면도,4 is a plan view of a multi-cell surface light source lamp according to the present invention;

도 5는 본 발명에 따른 멀티 셀 면광원 램프의 구동회로이다.5 is a driving circuit of a multi-cell surface light source lamp according to the present invention.

*도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS

10,100: 면광원 램프 20: 램프구동부10,100: surface light source lamp 20: lamp driver

11: 상부기판 12: 하부기판11: upper substrate 12: lower substrate

13: 형광층 14,140: X전극13: fluorescent layer 14,140: X electrode

15,150: Y전극 142,152: T자형 돌기전극15,150 Y electrode 142,152 T-shaped protruding electrode

16: 보조전극 17: 반사층16: auxiliary electrode 17: reflective layer

18: 격벽 19: 밀봉제18: bulkhead 19: sealant

102: 볼 스페이서102: ball spacer

Claims (2)

형광물질이 도포된 상부기판;An upper substrate coated with a fluorescent material; 반사물질이 도포된 하부기판;A lower substrate coated with a reflective material; 상기 상부기판과 상기 하부기판을 지지하기 위한 다수의 볼 스페이서;A plurality of ball spacers for supporting the upper substrate and the lower substrate; 상기 상부기판과 상기 하부기판을 밀봉하여 방전가스가 포함된 방전공간을 형성하는 밀봉제;A sealant sealing the upper substrate and the lower substrate to form a discharge space containing a discharge gas; 상기 방전공간을 다수의 셀로 구분하여 각 셀을 분할 구동하여 벽전하를 생성시키는 다수의 보조전극; 및A plurality of auxiliary electrodes for dividing the discharge space into a plurality of cells and dividing each cell to generate wall charges; And 상기 상부기판이나 상기 하부기판에 T자형 돌기를 갖고 형성되어 다수의 셀로 구분된 방전공간을 함께 구동하여 벽전하가 생성된 셀들을 점등시키는 X,Y 전극을 포함하여Including an X, Y electrode formed on the upper substrate or the lower substrate with a T-shaped projection to light the cells generated wall charge by driving the discharge space divided into a plurality of cells together; T자형 돌기전극을 사용하므로 플라즈마의 확산손실을 줄이고, 상기 볼 스페이서에 의해 방전공간을 유지하여 격벽을 제거할 수 있도록 된 것을 특징으로 하는 격벽을 갖지 않는 멀티셀 면광원 램프.A multi-cell surface light source lamp having no partition wall, wherein a T-shaped projection electrode is used to reduce the diffusion loss of plasma and to maintain a discharge space by the ball spacers. 제1항에 있어서, 상기 다수의 보조전극들은The method of claim 1, wherein the plurality of auxiliary electrodes 각 셀마다 개별적으로 구동되어 휘도 조절 및 선택적 부분 발광이 가능하도록 된 것을 특징으로 하는 격벽을 갖지 않는 멀티셀 면광원 램프.A multi-cell surface light source lamp having no partition wall, wherein each cell is individually driven to enable brightness adjustment and selective partial light emission.
KR1020080120040A 2008-11-28 2008-11-28 Multi-cell flat fluorescent lamp without seperating wall KR20100061141A (en)

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