WO2005064393A1 - Structure de canal de lampe fluorescente plate - Google Patents

Structure de canal de lampe fluorescente plate Download PDF

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Publication number
WO2005064393A1
WO2005064393A1 PCT/KR2004/003484 KR2004003484W WO2005064393A1 WO 2005064393 A1 WO2005064393 A1 WO 2005064393A1 KR 2004003484 W KR2004003484 W KR 2004003484W WO 2005064393 A1 WO2005064393 A1 WO 2005064393A1
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WO
WIPO (PCT)
Prior art keywords
hot
fluorescent lamp
flat fluorescent
lamp
channel structure
Prior art date
Application number
PCT/KR2004/003484
Other languages
English (en)
Inventor
Kyeong-Jae Lee
Keun-Sub Hyun
Original Assignee
Mrc Co. Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mrc Co. Ltd. filed Critical Mrc Co. Ltd.
Publication of WO2005064393A1 publication Critical patent/WO2005064393A1/fr

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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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133613—Direct backlight characterized by the sequence of light sources

Definitions

  • the present invention relates, in general, to channel structures of flat fluorescent lamps and, more particularly, to a channel structure of a flat fluorescent lamp which is configured such that the lamp is suitable for being used as a backlight unit for flat displays, such as liquid crystal displays (LCD), or as a wide-range light source to evenly illuminate a wide flat surface, such as a wide rectangular surface.
  • flat displays such as liquid crystal displays (LCD)
  • LCD liquid crystal displays
  • LCDs which have been most widely and preferably used as flat displays in image display apparatuses, are non-emissive displays that cannot emit light themselves and are so-called "light-receiving type displays", unlike conventional emissive displays capable of emitting light themselves, such as cathode-ray tubes (CRT), plasma display panels (PDP), field emission displays (FED) and light emitting diodes (LED).
  • CTR cathode-ray tubes
  • PDP plasma display panels
  • FED field emission displays
  • LED light emitting diodes
  • a backlight unit (BLU) is placed behind an LCD, so that the BLU backlights the LCD and allows the LCD to clearly show images on its screen, particularly in the dark.
  • BLU backlight unit
  • CCFL cold cathode fluorescent lamp
  • the conventional BLUs for LCDs fabricated using the CCFLs have been classified into two types: a direct light CCFL-BLU in which a plurality of CCFLs is arranged behind an LCD with a diffusion sheet interposed between the CCFLs and the LCD; and an edge light CCFL-BLU in which a plurality of CCFLs is arranged along the edges of an LCD so that light emitted from the CCFLs is distributed over the entire area of an LCD screen through a transparent light guide panel.
  • a flat fluorescent lamp (FFL) capable of more evenly distributing its light over an LCD screen has been proposed and used as a BLU for LCDs.
  • a conventional flat fluorescent lamp is fabricated with upper and lower FFL plates integrated into a single body having a discharge space therein.
  • the discharge space is partitioned into a plurality of discharge channels by partition walls.
  • the discharge channels communicate with each other through communication paths and are coated with a fluorescent material on their inner surfaces, and are provided with one or more electrodes therein.
  • a flat glass panel is heated to a predetermined temperature and softened enough to be shaped.
  • the heated flat glass panel is, thereafter, shaped using a shaping mold, thus providing a lower FFL plate having a plurality of discharge channels thereon.
  • the mold used in the above-mentioned shaping process has a shaping pattern capable of forming the discharge channels on the lower FFL plate so that the discharge channels are partitioned from each other by partition walls, but communicate with each other through communication paths.
  • the lower FFL plate having the discharge channels is, thereafter, removed from the shaping mold, slowly cooled, and coated with a fluorescent material on the inner surfaces of the discharge channels, prior to being baked.
  • an upper FFL plate is integrated with the lower FFL plate into a single lamp body using a seal paste, so that a discharge space is defined in the lamp body. After integrating the upper and lower FFL plates into the lamp body, the discharge space of the lamp body is vacumized by drawing air out of the space.
  • Discharge gas is injected into the vacummized space through a gas injection port. Thereafter, the gas injection port is sealed.
  • One or more electrodes to generate plasma discharge in the discharge space when electricity is applied to the electrodes are installed in the discharge space at predetermined positions.
  • the heated flat glass panel may be placed below the shaping mold and shaped through vacuum shaping, or may be placed on the shaping mold and shaped through vacuum shaping and blow shaping.
  • a shaped FFL plate or a flat glass panel may be used as the upper FFL plate to be integrated with the shaped lower FFL plate.
  • FIG. 1 is a plan view illustrating a channel structure provided on a lower FFL plate of a conventional hot-cold-hot type flat fluorescent lamp.
  • FIG. 2 is a sectional view of the channel structure of the lower FFL plate taken along the line a-a' of FIG. 1.
  • FIG. 3 is a view illustrating the portion B of FIG. 2 in detail. As shown in FIGS.
  • the lower FFL plate 1 of the conventional hot-cold-hot type flat fluorescent lamp has a rectangular shape, with a continuous se ⁇ entine-shaped discharge space 2 defined on the lower FFL plate 1 and partitioned into a plurality of communicating discharge channels 6 by a plurality of partition walls 3.
  • the discharge channels 6 communicate with each other through communication paths.
  • a vacuumized electrode channel 5 is provided at each end of the se ⁇ entine-shaped discharge space 2, while the communication paths act as vacuum paths through which air passes to be drawn out of the discharge channels 6 during a process of producing the flat fluorescent lamp.
  • An electrode 7 is installed in each electrode channel 5 so that the flat fluorescent lamp having the internal electrodes 7 is called an "internal electrode fluorescent lamp
  • the discharge space 2 comprises the discharge channels 6 each having a longitudinal rectangular shape of a predetermined size.
  • the partition walls 3 partition the discharge space 2 into discharge channels
  • the opposite ends each having an electrode 7 form hot zones, while the intermediate portion not having any electrode forms a cold zone.
  • a voltage applied to the electrodes by way of inverters is high at the hot zones defined at the opposite ends of the lamp having the electrodes, but is low at the cold zone defined in the intermediate portion of the lamp. Therefore, optical loss is generated at an area around the intermediate portion of the flat fluorescent lamp that forms the cold zone.
  • FIG. 4 is a plan view illustrating a channel structure provided on a lower FFL plate of a conventional hot-cold type flat fluorescent lamp.
  • a continuous se ⁇ entine-shaped discharge space 2 is defined on the lower FFL plate 1 and is partitioned into a plurality of communicating discharge channels 6 by a plurality of partition walls 3.
  • the discharge channels 6 communicate with each other through communication paths.
  • an internal electrode 7 is installed in an electrode channel 5 provided at each end of the se ⁇ entine-shaped discharge space 2.
  • the channel structure of the conventional hot-cold type flat fluorescent lamp is configured such that the discharge channels 6 have the same width because the distances between the partition walls 3 are identical with each other.
  • one of the two electrodes 7 installed at opposite ends of the discharge space 2 is grounded so that the end having the grounded electrode 7 that is a cold electrode forms a cold zone, while the opposite end having the other electrode 7 that is a hot electrode forms a hot zone.
  • the conventional hot-cold type flat fluorescent lamp having above-mentioned channel structure a voltage applied to the electrodes by way of inverters is high at the hot zone, but is low at the cold zone.
  • optical loss is generated at an area around the cold zone so that, although the lamp provides high brightness at the hot zone, the brightness is gradually reduced in a direction from the hot zone toward the cold zone.
  • the above-mentioned flat fluorescent lamp cannot efficiently or evenly illuminate a non-emissive flat display, such as an LCD.
  • FIG. 1 is a plan view illustrating a channel structure provided on a lower FFL plate of a conventional hot-cold-hot type flat fluorescent lamp (FFL);
  • FIG. 2 is a sectional view of the channel structure of the lower FFL plate taken along the line a-a' of FIG. 1;
  • FIG. 3 is a view illustrating the portion B of FIG. 2 in detail;
  • FIG. 4 is a plan view illustrating a channel structure provided on a lower FFL plate of a conventional hot-cold type flat fluorescent lamp;
  • FIG. 1 is a plan view illustrating a channel structure provided on a lower FFL plate of a conventional hot-cold type flat fluorescent lamp (FFL)
  • FIG. 2 is a sectional view of the channel structure of the lower FFL plate taken along the line a-a' of FIG. 1
  • FIG. 3 is a view illustrating the portion B of FIG. 2 in detail
  • FIG. 4 is a plan view illustrating a channel structure provided on a lower FFL plate of a
  • FIG. 5 is a plan view illustrating a channel structure provided on an FFL plate of a hot-cold-hot type flat fluorescent lamp, according to a first embodiment of the present invention
  • FIG. 6 is a plan view illustrating a channel structure provided on an FFL plate of a hot-cold type flat fluorescent lamp, according to a second embodiment of the present invention
  • FIG. 7 is a graph illustrating the brightness characteristics of the conventional hot-cold-hot type flat fluorescent lamp and the conventional hot-cold type flat fluorescent lamp
  • FIG. 8 is a graph illustrating the brightness characteristics of the flat fluorescent lamps having the channel structures according to the present invention in comparison with the conventional flat fluorescent lamps.
  • an object of the present invention is to provide a channel structure of a flat fluorescent lamp which is configured such that the lamp provides high brightness, high optical efficiency, and desired uniformity of brightness regardless of the location of electrodes, thus evenly illuminating a wide flat surface, such as a wide screen of a non-emissive flat display.
  • a channel structure of a flat fluorescent lamp defining therein a sealed discharge space having a continuous se ⁇ entine shape and being partitioned into a plurality of communicating discharge channels by a plurality of partition walls, with one or more electrodes provided in the discharge space, wherein the discharge channels have different widths which are reduced in a direction away from a location of a hot electrode.
  • the widths of the discharge channels may vary in accordance with a size of the flat fluorescent lamp, characteristics and intensity of electricity to be applied to the electrodes, and distances from the electrodes.
  • the widths of the discharge channels in the channel structure are reduced in directions from opposite ends of the lamp, having hot electrodes, toward an intermediate portion of the lamp.
  • the widths of the discharge channels in the channel structure are reduced in a direction from a first end of the lamp, having a hot electrode, toward a second end of the lamp.
  • the present invention provides a channel structure of a flat fluorescent lamp which is configured such that the channel structure provides high brightness, high optical efficiency and stable light emission properties of the lamp.
  • the flat fluorescent lamp having the channel structure according to the present invention is preferably used as a backlight unit (BLU) to evenly illuminate a non-emissive wide flat display, such as an LCD, and allows the flat display to clearly show images on its screen.
  • BLU backlight unit
  • the flat fluorescent lamp having the channel structure according to the present invention effectively overcomes the problems of conventional BLUs, which are nonuniform brightness, low optical efficiency and increased power consumption.
  • the flat fluorescent lamp having uniform brightness due to the channel structure according to the present invention is preferably used as a wide-range light source to evenly illuminate a wide flat surface as well as a BLU for LCDs.
  • FIG. 5 is a plan view illustrating a channel structure provided on an FFL plate of a hot-cold-hot type flat fluorescent lamp, according to a first embodiment of the present invention.
  • the channel structure is specifically designed such that the widths of the discharge channels 16 constituting a discharge space 12 of the lamp are gradually reduced in directions from opposite ends of the lamp having internal electrodes 17 in electrode channels 15 and forming hot zones toward an intermediate portion of the lamp which forms a cold zone, unlike a conventional channel structure of the hot- cold-hot type flat fluorescent lamp.
  • Mercury vapor and rare gas for plasma discharge are injected into the discharge space 12 of the lamp.
  • cold cathode electrodes or hot cathode electrodes may be used as the internal electrodes 17 of the lamp.
  • the lower FFL plate 11 having the discharge channels 16 is integrated with an upper FFL plate into a single lamp body using a seal paste, thus defining the discharge space 12 in the lamp body.
  • a seal paste is coated onto mating surfaces of the upper and lower FFL plates through a seal paste printing process or using a seal paste dispenser.
  • organic substances which may adversely affect the plasma discharge, are removed from the seal paste, and the upper and lower FFL plates are joined together to provide a joined FFL plate assembly.
  • the joined FFL plate assembly is, thereafter, heated to integrate the upper and lower FFL plates into a single lamp body having the discharge space 12.
  • the discharge space 12 of the lamp body is vacumized by drawing air out of the space
  • a fluorescent layer is formed on an inner surface of each of the upper and lower FFL plates.
  • the fluorescent layer on the inner surface of the upper FFL plate is preferably formed by printing a fluorescent material, while the fluorescent layer on the inner surface of the lower FFL plate 11 is preferably formed by spraying the fluorescent material or by coating a suspension of the fluorescent material.
  • the lamp is baked to remove organic substances from the fluorescent layers, allow the fluorescent layers to closely adhere to the inner surfaces of the FFL plates, improve the optical efficiency of the lamp, increase the expected life span of the lamp, and prevent unstable plasma discharge which may be caused by the release of discharge gas out of the discharge space.
  • it is possible to prevent a reduction in brightness or optical efficiency of the lamp caused by the release of discharge gas out of the discharge space during plasma discharge, and prevent a reduction in the expected life span of the lamp, and maintain stable light emission from the lamp.
  • high-frequency electricity is applied to the internal electrodes 17 so that an electric field is induced in the discharge space 12.
  • the rare gas ions and the mercury ions emit energy in the form of ultraviolet rays.
  • the ultraviolet rays radiated from the rare gas ions and the mercury ions excite the fluorescent material coated on the inner surfaces of the discharge space 12, so that the flat fluorescent lamp radiates visible rays and emits light.
  • a plurality of partition walls 13 partitions the discharge space 12 into the discharge channels 16 and maintains the shapes of the discharge channels 16.
  • the partition walls 13 serve as supports to prevent breakage of the upper and lower FFL plates when the discharge space 12 is vacuumized.
  • the discharge channels constituting the discharge space in the channel structure of the conventional hot-cold-hot type flat fluorescent lamp have the same width unlike the present invention.
  • rare gas for plasma discharge is actively ionized at the ends of the lamp body having hot electrodes forming the hot zones so that visible rays are actively radiated from the hot zones.
  • intense light with high brightness is emitted.
  • the brightness of the lamp and the intensity of light are gradually reduced in directions from the opposite ends toward the intermediate portion of the lamp body which forms the cold zone.
  • the brightness of hot-cold-hot type flat fluorescent lamps varies according to the size of the lamp as well as the characteristics and intensity of electricity to be applied to the electrodes.
  • the brightness of the lamp is gradually reduced in inverse proportion to distances from the hot electrodes.
  • the brightness reduction rate according to distances from the hot electrodes increases in wide channels compared to in narrow channels.
  • the brightness reduction rate increases in proportion to the widths of the discharge channels. Therefore, in the hot-cold-hot type flat fluorescent lamp having the conventional chamiel structure, brightness of the lamp varies such that the brightness at the intermediate portion of the lamp body which forms a cold zone is lower than that at the ends of the lamp body having the hot electrodes forming hot zones. Thus, the variation in brightness in the conventional hot-cold-hot type flat fluorescent lamp forms a V-shaped curve as shown in the graph of FIG. 7.
  • the channel structure of the hot-cold-hot type flat fluorescent lamp according to the present invention is configured such that the discharge channels 16 around the hot zones provided at opposite ends of the lamp body are wide, but the widths of the discharge channels 16 far away from the hot zones are reduced in inverse proportion to the distances from the hot zones.
  • the hot-cold-hot type flat fluorescent lamp according to the present invention provides uniform brightness over its entire light emission area.
  • An example of the channel structure of the hot-cold-hot type flat fluorescent lamp according to the first embodiment of the present invention will be described herein below with reference to FIG. 5.
  • the width of the first channel ⁇ is set to 10.0 mm
  • the widths of the second channel ⁇ , the third channel , the fourth channel ⁇ and the fifth channel ⁇ are set to be 9.5 mm, 9.0 mm, 8.5 mm and 8.0 mm, respectively.
  • the widths of the sixth channel ⁇ , the seventh channel ⁇ , the eighth channel (8), the ninth channel (9) and the tenth channel ⁇ are set to be 8.0 mm, 8.5 mm,
  • FIG. 6 is a plan view illustrating a channel structure of an FFL plate 21 of a hot-cold type flat fluorescent lamp, according to a second embodiment of the present invention.
  • one electrode 27 as a hot electrode to which electricity is applied is installed in an electrode channel 25 provided at the first end of the discharge space 22, while the other electrode 27 as a cold electrode to be grounded is installed in another electrode channel 25 provided at the second end of the discharge space 22.
  • the first end of the discharge space 22 forms a hot zone
  • the second end of the discharge space 22 forms a cold zone.
  • the lower FFL plate 21 having the discharge channels 26 is integrated with an upper FFL plate into a single lamp body, thus defining the discharge space 22 in the lamp body.
  • the discharge space 22 is partitioned into the discharge channels 26 using a plurality of partition walls 23. Rare gas for plasma discharge and mercury vapor are injected into the vacummized discharge space 22.
  • the channel structure is configured such that the channel around the hot zone is widest, while the widths of the remaining channels are gradually reduced in a direction from the hot zone toward the cold zone.
  • the brightness of the lamp is gradually reduced in inverse proportion to distances from the hot electrode.
  • the variation in brightness in the hot-cold type flat fluorescent lamp having the conventional channel structure forms an inclined straight line which is inclined downward in a rightward direction as shown in the graph of FIG. 7.
  • the hot-cold type flat fluorescent lamp according to the present invention provides uniform brightness over its entire light emission area.
  • An example of the channel structure of the hot-cold type flat fluorescent lamp according to the second embodiment of the present invention will be described herein below with reference to FIG. 6.
  • the widths of the second channel (2), the third channel ⁇ , the fourth channel ⁇ , the fifth channel ⁇ , the sixth channel ⁇ , the seventh channel ⁇ , the eighth channel ®, the ninth channel ⁇ and the tenth channel ⁇ are set to be 9.5 mm, 9.0 mm, 8.5 mm, 8.0 mm, 7.5 mm, 7.0 mm, 6.5 mm, 6.0 mm and 5.5 mm, respectively.
  • the widths of the discharge channels 26 are designed to vary while integrating two neighboring channels into one channel set.
  • the widths of all the discharge channels 26 may be designed to vary without integrating the channels into channel sets.

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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

L'invention concerne une structure de canal d'une lampe fluorescente plate. La structure de canal de la lampe fluorescente plate est conçue de manière que la lampe soit appropriée pour être utilisée comme une unité de contre-jour destinée à des affichages plats, tels que des afficheurs à cristaux liquides ou comme une source de rayonnement à gamme importante, aux fins d'éclairage égal de surfaces larges plates, telles que de larges surfaces rectangulaires. Dans la structure de canal de la lampe fluorescente plate, un espace de décharge scellé présentant une forme de serpentin continu et étant réparti en une pluralité de canaux de décharge communiquant, au moyen d'une pluralité de parois de séparation est défini, une ou plusieurs électrodes étant placées dans l'espace de décharge. Les canaux de décharge présentent diverses largeurs réduites dans une direction s'éloignant d'une électrode chaude.
PCT/KR2004/003484 2003-12-31 2004-12-29 Structure de canal de lampe fluorescente plate WO2005064393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0101724 2003-12-31
KR1020030101724A KR100629243B1 (ko) 2003-12-31 2003-12-31 면광원 램프

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WO2005064393A1 true WO2005064393A1 (fr) 2005-07-14

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KR (1) KR100629243B1 (fr)
CN (1) CN100421005C (fr)
TW (1) TWI256508B (fr)
WO (1) WO2005064393A1 (fr)

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DE202007005027U1 (de) * 2007-04-03 2008-08-07 Gies, Johannes Energiespar-Flachleuchte
US7452101B2 (en) 2005-12-05 2008-11-18 Au Optronics Corporation Planar light source
CN100465732C (zh) * 2005-12-20 2009-03-04 友达光电股份有限公司 平面光源
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WO2007037602A1 (fr) * 2005-09-28 2007-04-05 Samsung Corning Co., Ltd. Plaque de source lumineuse superficielle, source lumineuse superficielle et unité de rétro-éclairage l’utilisant
KR100773491B1 (ko) * 2005-11-04 2007-11-05 삼성코닝 주식회사 면광원 장치 및 이를 구비하는 백라이트 유닛
CN101826436A (zh) * 2010-03-30 2010-09-08 上海信洁照明科技有限公司 平面荧光灯
CN102387645A (zh) * 2010-09-03 2012-03-21 上海信洁照明科技有限公司 自镇流平面荧光灯

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US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7452101B2 (en) 2005-12-05 2008-11-18 Au Optronics Corporation Planar light source
CN100465732C (zh) * 2005-12-20 2009-03-04 友达光电股份有限公司 平面光源
DE202007005027U1 (de) * 2007-04-03 2008-08-07 Gies, Johannes Energiespar-Flachleuchte
US9331697B2 (en) 2013-07-05 2016-05-03 SK Hynix Inc. Output apparatus and output system including the same

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KR100629243B1 (ko) 2006-09-27
CN1902536A (zh) 2007-01-24
CN100421005C (zh) 2008-09-24
KR20050070989A (ko) 2005-07-07
TW200521576A (en) 2005-07-01
TWI256508B (en) 2006-06-11

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