CN1902536A - Channel structure of flat fluorescent lamp - Google Patents
Channel structure of flat fluorescent lamp Download PDFInfo
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- CN1902536A CN1902536A CNA2004800394065A CN200480039406A CN1902536A CN 1902536 A CN1902536 A CN 1902536A CN A2004800394065 A CNA2004800394065 A CN A2004800394065A CN 200480039406 A CN200480039406 A CN 200480039406A CN 1902536 A CN1902536 A CN 1902536A
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- 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
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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
- H01J61/04—Electrodes; Screens; Shields
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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
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- 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
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- 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
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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
A channel structure of a flat fluorescent lamp is disclosed. The channel structure of the flat fluorescent lamp is configured such that the lamp is suitable for being used as a backlight unit for flat displays, such as LCDs, or as a widerange light source to evenly illuminate wide flat surfaces, such as wide rectangular surfaces. In the channel structure of the flat fluorescent lamp, a sealed discharge space having a continuous serpentine shape and being partitioned into a plurality of communicating discharge channels by a plurality of partition walls is defined, with one or more electrodes provided in the discharge space. The discharge channels have different widths which are reduced in a direction away from a hot electrode.
Description
Technical field
Present invention relates in general to the channel architecture of flat florescent lamp, more specifically, relate to and a kind ofly be configured so that this lamp is suitable for use as the back light unit of flat-panel screens (for example LCD (LCD)) or as the channel architecture of the flat florescent lamp of the wide region light source that is used for the wide flat surfaces (for example wide square surface) of evenly illumination.
Background technology
The most preferably in image display device, be used as the LCD of flat-panel screens, be that self is luminous and be commonly called the non-emissive display of " light-receiving escope ", this is different from the luminous emission display of traditional energy self, cathode ray tube (CRT) for example, plasma panel (PDP), field-emitter display (FED) and light emitting diode (LED).Thereby when LCD can't help independent electro-optical device when illuminating from behind, LCD can not particularly clearly demonstrate any image in the dark on its display screen.So in the process of the problems referred to above of making great efforts to overcome non-emission type LCD, back light unit (BLU) is placed in the back of LCD, so that this BLU illuminates LCD from the back side, and allows this LCD on its display screen, particularly in the dark, clearly demonstrates image.
An example as the traditional element of the BLUs that is used for LCD has proposed and has used a kind of tiny tubular cold-cathode fluorescence lamp (CCFL) that has.The traditional B LUs that is used for LCD that uses CCFL to make is divided into two classes: direct projection illumination CCFL-BLU, and therein, a plurality of CCFL are set at the back of LCD, are inserted with diffusion disk simultaneously between CCFL and LCD; With edge light CCFL-BLU, a plurality of therein CCFL are along the edge setting of LCD, so that be dispersed on the whole zone of LCD display by transparent divided optical guide plate from the light that CCFL launches.In addition, in recent years in, proposed its illumination more to be evenly distributed in the flat florescent lamp (FFL) on the LCD display, and used as the BLU of LCD.Traditional flat florescent lamp is manufactured with upper and lower FFL plate, and the FFL plate is combined into the single main body that wherein has discharge space up and down.Discharge space is separated into a plurality of discharge channels by partition.Discharge channel is interconnected by communication paths, and is coated with fluorescent material on their surface, inside, and is provided with one or more electrodes therein.
In order to make this traditional flat florescent lamp, flat glass plate is heated to predetermined temperature, and makes it softening to being enough to by moulding.After this, the flat glass plate that heated passes through to use mould by moulding, thereby the bottom that has a plurality of discharge channels thereon FFL plate is provided.Employed mould has a kind of moulding pattern that can form discharge channel on the FFL plate of bottom in above-mentioned forming process, so that discharge channel is separated from each other by partition, but is interconnected by communication paths.After this, the bottom FFL plate with discharge channel shifts out from mould, slowly cooling, and before baking, on the inside surface of discharge channel, apply fluorescent material.After this, use sealing glue that top FFL plate is hardened with bottom FFL and synthesize single lamp body, so that in lamp body, limit discharge space.Behind synthetic lamp body that upper and lower FFL is hardened,, air make this space form vacuum by being extracted out in the discharge space of lamp body.Discharge gas is injected in this space of being pumped into vacuum by gas injection hole.After this, gas injection hole is sealed.When the one or more electrodes that produce plasma discharge when electrode is subjected to powering in discharge space are installed on the precalculated position of discharge space.
In the said process of making the conventional planar fluorescent light, the flat glass plate after the heating can be placed in below the mould, and the moulding by vacuum forming, maybe can be placed on the mould, and form by vacuum forming and blow molding.In addition, FFL plate after the moulding or flat glass plate can be used as with moulding after the bottom FFL top FFL plate that hardens and close.The discharge channel that is formed on the bottom FFL plate after the moulding can have different xsects, for example semi-circular cross-section, semi-ellipsoidal cross section, triangular cross section or square cross section.
The representational example of the conventional planar fluorescent light by the said process manufacturing is shown among Fig. 1 to 4.
Fig. 1 is a planimetric map, shows the channel architecture on the bottom FFL plate that is arranged on traditional hot-cold-hot type flat fluorescent lamp.Fig. 2 is the cross section view along the channel architecture of the bottom FFL plate that the line a-a ' among Fig. 1 obtains.Fig. 3 is the view that is shown specifically the B part among Fig. 2.
As shown in Figure 1 to Figure 3, the bottom FFL plate 1 of traditional hot-cold-hot type flat fluorescent lamp is rectangular, it has the continuous serpentine-shaped discharge space 2 that is limited on the bottom FFL plate 1, and this discharge space is separated into the discharge channel 6 of a plurality of connections by a plurality of partitions 3.This discharge channel 6 is interconnected by communication paths.Vacuum electrode passage 5 is arranged on each end of serpentine-shaped discharge space 2, and communication paths plays the effect of evacuated path simultaneously, and by this vacuum path, in the process of making flat florescent lamp, air is drawn out of from discharge channel 6.Therefore electrode 7 is installed in each electrode channel 5, and what be different from external electrode fluorescent lamp (EEFL) with outer electrode is that the flat florescent lamp with internal electrode 7 is called as " internal electrode fluorescent light (IEFL) " in correlation technique.Discharge space 2 comprises discharge channel 6, and each discharge channel is the vertical rectangle with preliminary dimension.In the channel architecture of traditional hot-cold-hot type flat fluorescent lamp, because the distance between the partition 3 is mutually the same, thereby partition 3 is separated into the identical discharge channel of width 6 with discharge space 2.In above-mentioned traditional hot-cold-hot type flat fluorescent lamp with channel architecture, the opposed end that has electrode 7 separately forms the hot-zone, and does not have the center section formation cold-zone of any electrode.
Yet, in having the traditional hot-cold-hot type flat fluorescent lamp of above-mentioned channel architecture, the voltage that is applied to electrode by inverter is higher on the hot-zone that the opposed end by the lamp with electrode limits, and is then lower on the cold-zone that the center section by lamp limits.Thereby, on the zone of the center section that centers on flat florescent lamp that forms the cold-zone, produced optical loss.Thereby though lamp provides high brightness on the end with the electrode that forms the hot-zone, this brightness reduces gradually along the direction from the hot-zone to the cold-zone of the center section that is limited to lamp.Thereby above-mentioned flat florescent lamp can not be effectively or is illuminated non-emissive flat display, for example LCD equably.
Fig. 4 is a planimetric map, shows the channel architecture on the bottom FFL plate that is arranged on traditional hot-cold type flat florescent lamp.
As shown in Figure 4, in the bottom of traditional hot-cold type flat florescent lamp FFL plate 1, continuous serpentine-shaped discharge space is limited on the bottom FFL plate 1, and it is separated into the discharge channel 6 of a plurality of connections by a plurality of partitions 3.Discharge channel 6 is interconnected by communication paths.With with the same way as that traditional hot-cold-hot type flat fluorescent lamp is described, internal electrode 7 is installed in the electrode channel 5 of each end that is arranged at serpentine-shaped discharge space 2.In addition, the channel architecture of traditional hot-cold type flat florescent lamp is constructed such that because the spacing between the partition 3 is mutually the same, thereby discharge channel 6 has identical width.In having traditional hot-cold type flat florescent lamp of above-mentioned channel architecture, one of two electrodes 7 that are installed in the opposed end of discharge space 2 are grounded, to have ground-electrode 7 be that the end of cold electrode forms the cold-zone so that make, and makes the opposed end that to have other electrode 7 be thermode form the hot-zone simultaneously.
Yet in having the traditional hot-cold type flat fluorescent lamp of above-mentioned channel architecture, the voltage that is applied to electrode by inverter is higher on the hot-zone, but lower on the cold-zone.Thereby on the zone around the cold-zone, produced optical loss, like this, though lamp provides high brightness in the hot-zone, this brightness reduces gradually along the direction from the hot-zone to the cold-zone.Thereby above-mentioned flat florescent lamp can not be effectively or is illuminated non-emissive flat display, for example LCD equably.
Description of drawings
In conjunction with the accompanying drawings, above and other objects of the present invention, feature and other advantage will more clearly be understood by following detailed description, in the accompanying drawings:
Fig. 1 is a planimetric map, shows the channel architecture on the bottom FFL plate that is arranged on traditional hot-cold-hot type flat fluorescent lamp (FFL);
Fig. 2 is the cross section view of the channel architecture of the bottom FFL plate that obtains of the a-a ' line along Fig. 1;
Fig. 3 is the view that shows in detail the B part of Fig. 2;
Fig. 4 shows the planimetric map of the channel architecture on the bottom FFL plate that is arranged on traditional hot-cold type flat florescent lamp;
Fig. 5 shows the planimetric map that is arranged on according to the channel architecture on the FFL plate of the hot-cold-hot type flat fluorescent lamp of first embodiment of the invention;
Fig. 6 shows the planimetric map that is arranged on according to the channel architecture on the FFL plate of the hot-cold type flat florescent lamp of second embodiment of the invention;
Fig. 7 is a chart, shows the brightness of traditional hot-cold-hot type flat fluorescent lamp and traditional hot-cold type flat florescent lamp; With
Fig. 8 is a chart, shows the brightness of comparing with the conventional planar fluorescent light that has the flat florescent lamp of channel architecture according to of the present invention.
Summary of the invention
The technical assignment that the present invention will solve
Therefore, The present invention be directed to the problems referred to above that in correlation technique, occur, and one object of the present invention is to provide a kind of channel architecture of flat florescent lamp, this flat florescent lamp is constructed such that regardless of the position of electrode, lamp can both provide high brightness, high optical efficiency, with the brightness uniformity of expection, thereby can throw light on equably broad plane, for example widescreen of non-emissive flat display.
Technical scheme
To achieve these goals, according to one embodiment of present invention, a kind of channel architecture of flat florescent lamp is provided, in this structure, define the discharge space of a sealing, this discharge space has continuous snakelike and be separated into the discharge channel of a plurality of connections by a plurality of partitions, be provided with one or more electrodes in this discharge space, wherein said discharge channel has the different width that reduces along the direction away from thermode.In addition, in the channel architecture of flat florescent lamp, the width of discharge channel can and will be applied to the electric strength of electrode and the distance of ionization electrode changes according to size, the characteristic of flat florescent lamp.
When flat florescent lamp be hot-cold-during the pattern of fever lamp, the width of discharge channel reduces along the direction from the opposed end of lamp with thermode to the center section of this lamp in the channel architecture.When flat florescent lamp was hot-cold type lamp, the width of discharge channel reduced along the direction from the first end of lamp with thermode to the second end of this lamp in the channel architecture.
Beneficial effect
Can obviously draw from above-mentioned instructions, the invention provides a kind of channel architecture of flat florescent lamp, this flat florescent lamp is constructed such that this channel architecture can provide high brightness, the stable light emission characteristics of high optical efficiency and lamp.Thereby regardless of the position of electrode, lamp all can provide the uniform luminance of expection.The flat florescent lamp that has according to channel architecture of the present invention preferably is used as back light unit (BLU), and with the wide flat-faced screen of the non-emission type that throws light on equably, for example LCD, and permission flat-panel screens clearly demonstrates image on its display screen.In addition, has the problem that has overcome traditional B LU according to the flat florescent lamp of channel architecture of the present invention effectively, i.e. brightness irregularities, lower optical efficiency and the power consumption of increase.
In addition, because having the flat florescent lamp of uniform luminance, channel architecture according to the present invention preferably is used as the light source of wide region, so that can illuminate wide plane equably as the BLU that is used for LCD.
Embodiment
Now will be in more detail with reference to the preferred embodiments of the present invention, the example of these preferred embodiments is shown in accompanying drawing 5 to Fig. 8.In any possible place, the same reference numerals of using when the explanation correlation technique will be used in whole drawing and description, to refer to same or analogous part.
Fig. 5 is a planimetric map, show according to being arranged on of first embodiment of the invention hot-cold-channel architecture on the FFL plate of hot type flat fluorescent lamp.As shown in the figure, in hot-cold-hot type flat fluorescent lamp according to first embodiment of the invention, the width of discharge channel 16 that this channel architecture is designed so that to constitute the discharge space 12 of lamp especially reduces gradually along the direction of the center section from the opposed end of lamp to the lamp that forms the cold-zone, wherein this lamp has internal electrode 17 and forms the hot-zone in electrode channel 15, and this is different from the conventional channels structure of hot-cold-hot type flat fluorescent lamp.
Be used for the mercuryvapour of plasma discharge and the discharge space 12 that inert gas is injected into lamp.In addition, cold cathode or hot cathode can be used as the internal electrode 17 of lamp.
In order to make the hot-cold-hot type flat fluorescent lamp with above-mentioned channel architecture, the bottom FFL plate 11 with discharge channel 16 is attached in the independent lamp body by using sealing glue with top FFL plate, defines the discharge space 12 in the lamp body thus.For bottom FFL plate 11 is attached in the lamp body with top FFL plate, by fluid sealant printing stock process or by using the fluid sealant water dispenser will seal on the matching surface that glue is coated to upper and lower FFL plate.After this, with may article on plasma the organic substance of body discharge generation adverse effect remove from fluid sealant is waterborne, and upper and lower FFL plate is joined together, so that the FFL that links together to be provided board component.After this, the FFL board component that links together is heated so that with the upper and lower FFL synthetic single lamp body with discharge space 12 that hardens.
In synthetic lamp body that upper and lower FFL is hardened, the discharge space 12 of lamp body is by extracting air out and form vacuum via being formed on gas injection hole on the bottom FFL plate 11 from space 12.In the process that makes space 12 evacuation, vacuum plant is connected to gas injection hole.After this, be used for the mercuryvapour of plasma discharge and inert gas before this gas injection hole of sealing, be injected in the vacuum space 12 by this gas injection hole.In the present invention, in order mercuryvapour to be injected into space 12, can to use the mercury getter that comprises liquid mercury or mercury alloy.
Fluorescence coating is formed on the inside surface of each upper and lower FFL plate.Fluorescence coating on the inside surface of top FFL plate preferably forms by the printing fluorescent material, and the fluorescence coating on FFL plate 11 inside surfaces of bottom preferably passes through the spraying fluorescent material or apply fluorescent material suspending liquid to form simultaneously.
Be formed on the inside surface of upper and lower FFL plate at fluorescence coating after, lamp is toasted so that organic substance is removed from fluorescence coating, to allow fluorescence coating closely to stick on the inside surface of FFL plate, thereby improve the optical efficiency of lamp, increase the expected life of lamp, and prevent and from discharge space, to overflow the unsettled plasma discharge that is caused by discharge gas.Thereby, prevent from and to prevent the reduction of the expected life of lamp, and the stable light emission of keeping lamp is possible because discharge gas overflows the brightness of the lamp that is caused or the reduction of optical efficiency in the self discharge space in the discharge process of plasma.
In order to impel the plasma discharge in the discharge space, and allow lamp luminous, high-frequency current is applied to internal electrode 17, so as in discharge space 12 induced electric field.After this, accelerated electron and be used in the activated atom of inert gas of plasma discharge and the activation mercury atoms in the space 12 in electric field is so that inert gas ion and mercury ion are emitted energy with ultraviolet form.By the ultraviolet ray excited fluorescent material that is coated on discharge space 12 inside surfaces of inert gas ion and mercury ion radiation, so that flat florescent lamp gives off visual ray and luminous.
In the hot-cold-hot type flat fluorescent lamp with channel architecture according to the present invention, a plurality of partitions 13 are divided into discharge channel 16 with discharge space 12, and keep the shape of this discharge channel 16.In addition, when discharge space 12 was evacuated, partition 13 was as the support that prevents upper and lower FFL plate fracture.
As to description of related art, be used for constituting tradition hot-cold-discharge channel of the discharge space of the channel architecture of hot type flat fluorescent lamp has identical width, this is different from the present invention.In the traditional hot-cold-hot type flat fluorescent lamp of the channel architecture that has discharge channel with same widths, the inert gas that is used for plasma discharge is in the ionization effectively of the end of the lamp body with thermode that forms hot-zone quilt, so that give off luminous ray effectively from the hot-zone.Thereby on the opposed end of the lamp body that forms the hot-zone, the high light with high brightness is launched out.Yet the brightness of lamp reduces from relative end to the center section of the lamp body that forms the cold-zone gradually with the light intensity edge.
The brightness of hot-cold-pattern of fever fluorescent light changes according to the size of lamp and electric strength and the feature that is applied to electrode.In hot-cold-hot type flat fluorescent lamp with the channel architecture that has the same widths discharge channel, the brightness of lamp with inversely proportionally reduce gradually apart from the distance of thermode.Yet, in hot-cold-hot type flat fluorescent lamp, to compare with narrow passage with the channel architecture that has the different in width discharge channel, brightness increases in fat pipe according to the reduced rate of distance thermode distance.In other words, in having the hot-cold-hot type flat fluorescent lamp of different in width discharge channel, the reduced rate of brightness increases with the width of discharge channel with being directly proportional.
Thereby in having the hot-cold-hot type flat fluorescent lamp of conventional channels structure, the brightness of lamp changes, so that be lower than the brightness that has on the lamp body end with thermode that forms the hot-zone in the brightness on the center section of the lamp body that forms the cold-zone.Thereby, tradition hot-cold-brightness in the hot type flat fluorescent lamp changes the V-type curve that has formed in the chart that is shown in Fig. 7.
Overcome tradition hot-cold-effort of the brightness variation issue that experiences in the channel architecture of hot type flat fluorescent lamp in, according to of the present invention hot-cold-channel architecture of hot type flat fluorescent lamp is constructed such that discharge channel 16 broads around the hot-zone that is arranged on the lamp body opposed end, but reduce inversely away from the width of the discharge channel 16 of hot-zone and distance from the hot-zone.Thereby, according to of the present invention hot-cold-hot type flat fluorescent lamp provides uniform brightness on its overall optical emitting area.
Hereinafter the example according to the channel architecture of the hot-cold-hot type flat fluorescent lamp of first embodiment of the invention is explained with reference to Fig. 5 below.The channel architecture that is shown in hot-cold-hot type flat fluorescent lamp of Fig. 5 is constructed such that, after first passage width 1. is set to 10.0mm, second channel 2., third channel 3., 4. four-way be set at 9.5mm, 9.0mm, 8.5mm and 8.0mm respectively with five-way road width 5..In addition, the 6th passage 6., the 7th passage 7., the 8th passage 8., 9. the 9th passage be set at 8.0mm, 8.5mm, 9.0mm, 9.5mm and 10.0mm respectively with the tenth passage width 10..In above-mentioned channel architecture, when two adjacent passages were combined into a channel group, the width of discharge channel 16 can be designed to and can change.But the width of all discharge channels 16 can be designed to and can change, and need not these passages are combined into channel group.
Fig. 6 is a planimetric map, shows the channel architecture according to the FFL plate 21 of the hot-cold type flat florescent lamp of second embodiment of the invention.In lamp body according to hot-cold type flat florescent lamp of the present invention, the electrode 27 as thermode of energising is installed in the electrode channel 25 that is arranged at discharge space 22 first ends, and another electrode 27 as cold electrode of ground connection is installed in another electrode channel 25 on the second end that is arranged at discharge space 22.Thereby the first end of discharge space 22 has formed the hot-zone, and the second end of discharge space 22 has formed the cold-zone.With with the mode identical to the description of hot-cold-hot type flat fluorescent lamp, the bottom FFL plate 21 with discharge channel 26 hardens with top FFL in the synthetic lamp body, so define discharge space 22 in lamp body.In addition, discharge space 22 is separated into discharge channel 26 by using a plurality of partitions 23.Be used for the inert gas of plasma discharge and the discharge space 22 that mercuryvapour is injected into vacuum.In the hot-cold type flat florescent lamp according to second embodiment, channel architecture is constructed such that around the passage of hot-zone the wideest, and the width of rest channels reduces gradually along the direction from the hot-zone to the cold-zone.
In hot-cold type flat florescent lamp with the conventional channels structure that has the same widths discharge channel, the brightness of lamp with apart from the distance of thermode inversely proportionally gradually the reduction.Thereby the brightness in having the hot-cold type flat florescent lamp of conventional channels structure changes the edge angled straight lines that is directed downwards inclination to the right that has formed shown in the chart among Fig. 7.Yet, owing to be designed such that according to the channel architecture of hot-cold type flat florescent lamp of the present invention discharge channel 22 has different width, therefore hot-cold type flat florescent lamp according to the present invention it the overall optical emitting area on uniform brightness is provided.
With reference to Fig. 6 the example according to the channel architecture of the hot-cold type flat florescent lamp of second embodiment of the invention is described below.The channel architecture that is shown in the hot-cold type flat florescent lamp of Fig. 6 is constructed such that, after first passage width 1. is set to 10.0mm, second channel 2., third channel 3., four-way 4., the five-way road 5., the 6th passage 6., the 7th passage 7., the 8th passage 8., 9. the 9th passage be set at 9.5mm, 9.0mm, 8.5mm, 8.0mm, 7.5mm, 7.0mm, 6.5mm, 6.0mm and 5.5mm respectively with the tenth passage width 10..In the channel architecture of above-mentioned hot-cold type flat florescent lamp, when two adjacent passages were combined into a channel group, the width of discharge channel 26 was designed to change.Yet the width of all discharge channels 26 can be designed to change, and need not these passages are attached in the channel group.
Schematically illustrate although the preferred embodiments of the present invention have been made, but those skilled in the art will appreciate that, under the prerequisite that does not deviate from by the disclosed scope and spirit of the present invention of claims, make various improvement, it is possible adding and replacing.
Claims (4)
1. the channel architecture of a flat florescent lamp, limit in this channel architecture and be snakelike sealed discharging space continuously, and be separated into the discharge channel of a plurality of connections by a plurality of partitions, be provided with one or more electrodes in this discharge space, wherein this discharge channel has the different in width that reduces along the direction away from the thermode position.
2. the passage of flat florescent lamp according to claim 1, wherein the width of discharge channel changes according to the distance of the size of flat florescent lamp, the electric strength that is applied to electrode and characteristic and distance electrode.
3. the passage of flat florescent lamp according to claim 1, wherein, when flat florescent lamp be hot-cold-during the pattern of fever lamp, the width of discharge channel reduces along the direction from the opposed end of lamp with thermode to the center section of this lamp.
4. the passage of flat florescent lamp according to claim 1, wherein, when flat florescent lamp was hot-cold type lamp, the width of discharge channel reduced along the direction from the first end of lamp with thermode to the second end of this lamp.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0101724 | 2003-12-31 | ||
| KR1020030101724A KR100629243B1 (en) | 2003-12-31 | 2003-12-31 | Lamp with Wide-range Light Source |
| KR1020030101724 | 2003-12-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1902536A true CN1902536A (en) | 2007-01-24 |
| CN100421005C CN100421005C (en) | 2008-09-24 |
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ID=34737958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800394065A Expired - Fee Related CN100421005C (en) | 2003-12-31 | 2004-12-29 | Channel structure of flat fluorescent lamp |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR100629243B1 (en) |
| CN (1) | CN100421005C (en) |
| TW (1) | TWI256508B (en) |
| WO (1) | WO2005064393A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826436A (en) * | 2010-03-30 | 2010-09-08 | 上海信洁照明科技有限公司 | Flat fluorescent lamp |
| CN102387645A (en) * | 2010-09-03 | 2012-03-21 | 上海信洁照明科技有限公司 | Self-ballasted flat fluorescent lamp |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100642652B1 (en) * | 2005-01-24 | 2006-11-10 | 주식회사 엘에스텍 | Flat fluorescent lamp having good discharge uniformity |
| KR100741495B1 (en) * | 2005-05-23 | 2007-07-20 | 삼성코닝 주식회사 | Optical source with brightness activation uniformity and backlight unit using the same |
| WO2007037602A1 (en) * | 2005-09-28 | 2007-04-05 | Samsung Corning Co., Ltd. | Plate for surface light source, surface light source and backlight unit having the same |
| KR100773491B1 (en) * | 2005-11-04 | 2007-11-05 | 삼성코닝 주식회사 | Surface light source and backlight unit haing the same |
| TWI326380B (en) | 2005-12-05 | 2010-06-21 | Au Optronics Corp | Planar light source structure |
| CN100465732C (en) * | 2005-12-20 | 2009-03-04 | 友达光电股份有限公司 | Plane light source structure |
| DE202007005027U1 (en) * | 2007-04-03 | 2008-08-07 | Gies, Johannes | Energy-saving flat lamp |
| KR20150005299A (en) | 2013-07-05 | 2015-01-14 | 에스케이하이닉스 주식회사 | Output apparatus and output system including the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60216435A (en) * | 1984-04-10 | 1985-10-29 | Sharp Corp | Flat type discharge tube |
| US5479069A (en) * | 1994-02-18 | 1995-12-26 | Winsor Corporation | Planar fluorescent lamp with metal body and serpentine channel |
| US5536999A (en) * | 1994-12-02 | 1996-07-16 | Winsor Corporation | Planar fluorescent lamp with extended discharge channel |
| JPH0992208A (en) * | 1995-09-26 | 1997-04-04 | Mitsubishi Materials Corp | Flat fluorescent lamp and manufacture of its partition wall |
| US5903096A (en) * | 1997-09-30 | 1999-05-11 | Winsor Corporation | Photoluminescent lamp with angled pins on internal channel walls |
| JP4102528B2 (en) * | 1999-10-28 | 2008-06-18 | Ｎｅｃライティング株式会社 | Flat type rare gas fluorescent lamp |
| CN1204593C (en) * | 2000-04-20 | 2005-06-01 | 翰立光电股份有限公司 | Planar fluorescent lamp and its making process |
| US7084583B2 (en) * | 2001-06-25 | 2006-08-01 | Mirae Corporation | External electrode fluorescent lamp, back light unit using the external electrode fluorescent lamp, LCD back light equipment using the back light unit and driving device thereof |
-
2003
- 2003-12-31 KR KR1020030101724A patent/KR100629243B1/en not_active IP Right Cessation
-
2004
- 2004-12-23 TW TW093140219A patent/TWI256508B/en not_active IP Right Cessation
- 2004-12-29 WO PCT/KR2004/003484 patent/WO2005064393A1/en active Application Filing
- 2004-12-29 CN CNB2004800394065A patent/CN100421005C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826436A (en) * | 2010-03-30 | 2010-09-08 | 上海信洁照明科技有限公司 | Flat fluorescent lamp |
| CN102387645A (en) * | 2010-09-03 | 2012-03-21 | 上海信洁照明科技有限公司 | Self-ballasted flat fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100629243B1 (en) | 2006-09-27 |
| CN100421005C (en) | 2008-09-24 |
| KR20050070989A (en) | 2005-07-07 |
| TW200521576A (en) | 2005-07-01 |
| TWI256508B (en) | 2006-06-11 |
| WO2005064393A1 (en) | 2005-07-14 |
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