CN1913094B - Flat fluorescent lamp structure and flat fluorescent lamp - Google Patents
Flat fluorescent lamp structure and flat fluorescent lamp Download PDFInfo
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- CN1913094B CN1913094B CN2006100748978A CN200610074897A CN1913094B CN 1913094 B CN1913094 B CN 1913094B CN 2006100748978 A CN2006100748978 A CN 2006100748978A CN 200610074897 A CN200610074897 A CN 200610074897A CN 1913094 B CN1913094 B CN 1913094B
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- 239000000758 substrate Substances 0.000 claims abstract description 90
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims description 28
- 238000004020 luminiscence type Methods 0.000 claims description 26
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229910002059 quaternary alloy Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 229910052754 neon Inorganic materials 0.000 claims description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 11
- 230000012447 hatching Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
A flat fluorescent lamp structure comprises a first substrate, a second substrate, at least one partition structure, a fluorescent material and a luminescent gas. The second substrate pair is arranged on the first substrate and forms a closed space together. The partition structure divides the closed space into a plurality of light-emitting cavities. At least one channel penetrates through the partition plate structure so as to enable the plurality of light-emitting cavities to be communicated, and the channel divides the adjacent light-emitting cavity into a first light-emitting cavity and a second light-emitting cavity. The fluorescent material is arranged on the inner walls of the light-emitting cavities. The luminous gas is filled in the luminous cavities. The ratio of a channel length of the channel to a channel sectional area is defined as a first coefficient, the ratio of a cavity length of the first light-emitting cavity to a cavity sectional area is defined as a second coefficient, the ratio of a cavity length of the second light-emitting cavity to a cavity sectional area is defined as a third coefficient, and the first coefficient and the second coefficient or the third coefficient have a proportional relation.
Description
Technical field
The present invention is about a kind of plane fluorescent lamp structure, particularly about a kind of plane fluorescent lamp structure that can be applicable to the display backlight source.
Background technology
Cold cathode fluorescent lamp is a kind of common illumination and luminescence component, and its application in the backlight liquid crystal display module is also very frequent.Its principle of luminosity belongs to plasma luminescence, utilizes by the emitted electronics of negative electrode, produces collision with the luminous gas that is enclosed within wherein, causes the ionization of luminous gas and excites to form plasma.Thereafter, the atom of excitation state can release energy in the mode of emitting ultraviolet light in the plasma, to get back to ground state.By the ultraviolet light that is discharged, and utilize the fluorescent material of coating the cold cathode lamp tube wall, and produce visible light.
Along with the increasing day by day of LCD size, therefore the lighting area of required backlight module also has the demand of expansion, and simultaneously, the brightness of the light that it provided and the uniformity also need to promote.When above-mentioned cold cathode fluorescent lamp is applied to the LCD of reduced size, often be that collocation one light guide plate is used, cold cathode fluorescent lamp is in light guide plate side incident ray, and provides an area source by light guide plate.Yet among large-sized slightly LCD, the backlight module that belongs to straight-down negative is comparatively common.As its name suggests, in the backlight module of straight-down negative, omitted the application of light guide plate, but direct utilization a plurality of cold cathode fluorescent lamp side by side are to provide directly light to liquid crystal panel.
Flat florescent lamp then is the another kind of light source that backlight module adopts, and its principle of luminosity is identical with cold cathode fluorescent lamp substantially, however different be its structural change.Because LCD is needed to be an area source, particularly an even brightness area source.And the direct type backlight module of forming by a plurality of cold cathode fluorescent lamp, restriction on its uniformity is arranged unavoidably, can there be darker brightness gap between cold cathode fluorescent lamp than cold cathode fluorescent lamp itself unavoidably, in addition, cost loaded down with trivial details manufacture craft higher and assembling one by one also is the shortcoming of cold cathode fluorescent lamp.Therefore, above-mentioned flat florescent lamp then is suggested, and it is a kind of assembly that area source directly is provided.
Please refer to Figure 1A and Figure 1B, Figure 1A is a Typical Planar fluorescent lamp top view; Figure 1B is Figure 1A flat florescent lamp side cross section view, and wherein b-b is a hatching.By Figure 1B, plane fluorescent lamp structure 10 constitutes a confined space (this figure does not indicate) with one first substrate 12 and one second substrate 14 usually.In plane fluorescent lamp structure 10 inside, first substrate 12 and second substrate, 14 facing surfaces are coated with fluorescent material 16, and are filled with luminous gas 18 in the confined space.And as Figure 1A, flat florescent lamp 1 promptly is provided with electrode 11 so that electric current to be provided at the relative dual side-edge of the confined space of plane fluorescent lamp structure 10, and after electric current injected, then the type of action of flat florescent lamp 1 and principle of luminosity were as aforesaid cold cathode fluorescent lamp.
Please refer to Fig. 1 C and cooperate Figure 1A, Fig. 1 C is the side cross section view of Figure 1A flat florescent lamp along other direction c-c.Between first substrate 12 and second substrate 14, can utilize a plurality of diaphragm structures 13 usually to separate out a plurality of lighting cavity 15, therefore, similar a plurality of cold cathode fluorescent lamp side by side on the structure.
It should be noted that in making the process of plane fluorescent lamp structure 10, normally first substrate 12, diaphragm structure 13 and second substrate 14 all are combined as one after, ability is carried out vacuum suction to a plurality of lighting cavity 15, and then carries out the filling of luminous gas 18.And for the facility on the manufacture craft; between a plurality of lighting cavity 15; usually can on diaphragm structure 13, form passage 17 so that a plurality of lighting cavity 15 on air-flow for being connected, so that carry out manufacturing process steps such as above-mentioned vacuum suction and filling luminous gas 18.
Yet passage 17 can cause the wherein situation that can't be lighted of lighting cavity 15 partly of flat florescent lamp 1.Please refer to Fig. 1 D and cooperate Figure 1A, Fig. 1 D is the equivalent circuit diagram of Figure 1A flat florescent lamp.A plurality of lighting cavity 15 luminous gas 18 wherein can be considered as a resistance respectively in discharge process, can be respectively with reference to the resistance R among Fig. 1 D 1, R3, R5, R7 and R9.Based on same principle, a plurality of passages 17 also can be considered as a resistance respectively, please refer to resistance R 2, R4, R6 and the R8 of Fig. 1 D.Wherein, be by the required electric current of power supply circuit 22 supplies.
Resistance with same material, the ratio that its resistance value is proportional to length and sectional area is well known, and below discusses and promptly extends a basic physics general knowledge since then.
Please refer to Fig. 1 C, in general, diaphragm structure 13 is that mode by hot forming or sandblast is to be made on first substrate 12.By Figure 1A, when making diaphragm structure 13, usually the sectional area of the passage of reserving 17 is very close with the sectional area of lighting cavity 15 substantially, yet because the passage length of passage 17 is much smaller than the cavity length of lighting cavity 15, therefore, resistance R 2, R4, R6 and the R8 of each passage 17 are all much smaller than resistance R 1, R3, R5, R7 and the R9 of each lighting cavity 15.
On the other hand, again owing in other words script between other lighting cavity 15, might not equate between resistance R 1, R3, R5, R7 and the R9 just because of the actual fabrication process condition has some differences mutually.Thus, flat florescent lamp 1 internal current situation pockety just is easy to take place.When serious, the situation that some lighting cavity 15 can't be lighted can take place promptly, this is the inhomogeneous caused inhomogeneous shortcoming of lighting of CURRENT DISTRIBUTION.With Fig. 1 D resistance R 1, R2 and R3 are example, if the practical impedance of corresponding resistance R 3 is less than resistance R 1, and the series impedance of resistance R 3 and resistance R 2 is also less than resistance R 1 (when being R3+R2＜R1), then can make partly predetermined flowing through corresponding to the electric current of the lighting cavity 15 of resistance R 1, diverted via by resistance R 2 pairing passages 17, then the resistance R 3 pairing lighting cavity 15 of flowing through, thus, promptly produced the situation that a lighting cavity 15 wherein can't be lighted, so far the flat florescent lamp 1 of manufacture craft operation can't be rebuild the defective products of doing over again because of lighting inhomogeneous becoming, if can't overcome this shortcoming, the apprentice is increased cost.
Therefore, because how 1 shortcoming that still has of above-mentioned conventional planar fluorescent lamp is improved, make flat florescent lamp 1 light uneven situation and can cover effectively except that being the target of current techniques.
Summary of the invention
A purpose of the present invention is to provide a kind of inhomogeneous plane fluorescent lamp structure and flat florescent lamp of lighting shortcoming that improve.
Another object of the present invention is to provide a kind of reliability promotes on current characteristics plane fluorescent lamp structure and flat florescent lamp.
Another object of the present invention is to does not increase under the prerequisite of vacuum suction and luminous gas filling step, and a kind of plane fluorescent lamp structure and flat florescent lamp of evenly lighting easily is provided.
The invention provides a kind of plane fluorescent lamp structure, comprise one first substrate; One second substrate, first substrate is relative assembles with this, and forms a confined space jointly; At least one diaphragm structure is separated into a plurality of lighting cavity with this confined space; One passage connects this diaphragm structure, so that these a plurality of lighting cavity communicate, at this passage an above-mentioned lighting cavity is divided under the situation of the first luminescence cavity that adjoins each other and a second luminescence cavity, and a fluorescent material is disposed at the inwall of these a plurality of lighting cavity; And a luminous gas, be filled in these a plurality of lighting cavity; Wherein, one passage length of this passage and the ratio of a channel cross-sectional area are defined as one first coefficient, the long-pending ratio of one cavity length of this first luminescence cavity and a cavity cross-section is defined as one second coefficient, and the long-pending ratio of a cavity length of this second luminescence cavity and a cavity cross-section is defined as a tertiary system number; Wherein, the ratio of this first coefficient and this second coefficient is greater than 1/20.
The present invention more provides a kind of flat florescent lamp, comprises one first substrate, one second substrate, at least one electrode, a fluorescent material and a luminous gas.Second substrate is to organizing in first substrate, and forms a plurality of lighting cavity and at least one passage jointly, and wherein this passage is communicated with adjacent these a plurality of lighting cavity, and the sectional area of passage is less than the sectional area of this lighting cavity.Electrode contacts with these a plurality of lighting cavity.Fluorescent material is disposed at the inwall of these a plurality of lighting cavity.Luminous gas is filled in these a plurality of lighting cavity.In addition, one passage length of passage and the ratio of a channel cross-sectional area are defined as one first coefficient, the long-pending ratio of one cavity length of first luminescence cavity and a cavity cross-section is defined as one second coefficient, the long-pending ratio of one cavity length of second luminescence cavity and a cavity cross-section is defined as a tertiary system number, in addition, first coefficient can be greater than second coefficient, or first coefficient can be greater than tertiary system number.The ratio of first coefficient and second coefficient is greater than 1/20, and the ratio of first coefficient and tertiary system number is greater than 1/20, and in addition, the ratio of first coefficient and second coefficient can be greater than 20, and the ratio of first coefficient and tertiary system number can be greater than 20.
Thus, just much larger than the impedance of lighting cavity, externally after the electrode supply capability, electric current will can not be scurried into the passage of high impedance in the impedance of passage, and flat florescent lamp is just lighted equably.
About the advantages and spirit of the present invention, and more detailed execution mode can be further understood by following execution mode and accompanying drawing.
Description of drawings
By following detailed description in conjunction with the accompanying drawings, can understand the plurality of advantages of foregoing and the present invention easily, wherein:
Figure 1A is a Typical Planar fluorescent lamp top view;
Figure 1B is Figure 1A flat florescent lamp side cross section view;
Fig. 1 C prolongs the side cross section view of other direction for Figure 1A flat florescent lamp;
Fig. 1 D is the equivalent circuit diagram of Figure 1A flat florescent lamp;
Fig. 2 A looks schematic diagram on the flat florescent lamp of the present invention;
Fig. 2 B is Fig. 2 A flat florescent lamp side generalized section;
Fig. 2 C prolongs c-c hatching side generalized section for Fig. 2 A flat florescent lamp;
Fig. 2 D prolongs the c-c hatching according to the side generalized section shown in another embodiment for Fig. 2 A flat florescent lamp;
Fig. 2 E is the equivalent circuit diagram of Fig. 2 A flat florescent lamp;
Fig. 2 F prolongs the side generalized section of e-e hatching for Fig. 2 A;
Fig. 3 A looks schematic diagram on another embodiment of the present invention;
Fig. 3 B looks schematic diagram on another embodiment of the present invention; And
Fig. 4 is that Fig. 2 A is along another embodiment side generalized section of e-e hatching.
The primary clustering symbol description
1,4: flat florescent lamp
10,40: plane fluorescent lamp structure
11: electrode 22,52: power supply circuit
12,42: the first substrates 41: outer electrode
13,43: diaphragm structure 425: pore
14,44: the second substrate 45a1: first luminescence cavity
15,45: lighting cavity 45a2: second luminescence cavity
16,46: fluorescent material 45b1,45b2,45b3: sub-lighting cavity
17,47: passage 49: confined space
18,48: luminous gas 51: the interval colloid
Embodiment
Please refer to Fig. 2 A and Fig. 2 B, Fig. 2 A looks schematic diagram on the flat florescent lamp of the present invention; Fig. 2 B is Fig. 2 A flat florescent lamp side cross section view, and wherein b-b is a hatching.Plane fluorescent lamp structure 40 comprises one first substrate 42, a diaphragm structure 43, one second substrate 44, a fluorescent material 46, a passage 47 and a luminous gas 48.Flat florescent lamp 4 promptly ties up to plane fluorescent lamp structure 40 relative dual side-edges and electrode 41 is set so that electric current to be provided.
By Fig. 2 B, 44 pairs of second substrates are organized in first substrate 42 to form an airtight box like structure and to form a confined space 49 jointly.In the confined space 49, fluorescent material 46 is disposed at the inwall of first substrate 42 and second substrate 44.And between first substrate 42 and second substrate 44, have sidewall 421 be formed between the said two devices around partly, among the embodiment, sidewall 421 is made in the upper surface of first substrate 42.During to group, utilize interval colloid (sealant) 51 to be arranged at the top of sidewall 421, to engage first substrate 42 and second substrate 44, colloid 51 can provide reliable joint effect and driving fit quality at interval.
The first above-mentioned substrate 42, diaphragm structure 43 and the second substrate 44 actual execution mode in structure and assembling has many kinds distortion, for example, first substrate 42 can directly be made into the structure with a plurality of grooves, promptly directly diaphragm structure 43 is made on first substrate 42 one-body moldedly.Or shown in Fig. 2 D, plane fluorescent lamp structure 40 only is to utilize the shaped design of first substrate 42 to omit use diaphragm structure 43 with the difference of the plane fluorescent lamp structure 40 of Fig. 2 C, but all the structure with Fig. 2 C is identical in fact with the effect that will reach in its effect, so do not repeat them here.Therefore, aforementioned barriers structure 43, first substrate 42 and second substrate 44 are not must be assembly disconnected from each other, above-mentioned name with separate mode and divide other effect in order to show it, be not in order to limit as the present invention.
Please refer to Fig. 2 C and cooperate Fig. 2 A, Fig. 2 C prolongs c-c hatching side generalized section for Fig. 2 A flat florescent lamp.Wherein, diaphragm structure 43 is that confined space 49 is separated into a plurality of lighting cavity 45.By Fig. 2 A, 47 in passage connects diaphragm structure 43, so that a plurality of lighting cavity 45 communicates.Whereby, can utilize the pore 425 that sets in advance on sidewall 421, so that whole confined space 49 is carried out vacuum suction, and and then luminous gas 48 is filled in a plurality of lighting cavity 45 by pore 425, can be after filling is finished with pore 425 driving fits finishing making, and keep the air-tight state of whole confined space 49.
Also can find out that by Fig. 2 C fluorescent material 46 is configurable in the inwall of a plurality of lighting cavity 45, in other words, except first substrate 42 and second substrate 44 is configurable that the also configurable surface at diaphragm structure 43 of fluorescent material 46 is arranged the fluorescent material 46.And in the embodiment of the present invention shown in Fig. 2 C, diaphragm structure 43 is selected the material identical with first substrate 42 for use, make its structure in advance on first substrate 42, when carrying out group with second substrate 44, utilize interval colloid 52 to be arranged at diaphragm structure 43 tops, to engage second substrate 44 and diaphragm structure 43.And luminous gas 48 can be an inert gas, and it is selected from xenon (Xe), neon (Ne) or argon gas (Ar).
Referring again to Fig. 2 B and cooperate Fig. 2 A, in an embodiment of the present invention, adopt outer electrode 41 to come the required electric current of provision plane fluorescent lamp structure 40, outer electrode 41 contacts with lighting cavity 45.Shown in Fig. 2 B, outer electrode 41 is arranged at first substrate 42 or second substrate, 44 outsides.Outer electrode 41 needs to produce discharge by first substrate 42 or second substrate 44, so the glass material of first substrate 42 or second substrate 44 can be considered the existence of a capacity effect, and can be with reference to shown in the equivalent circuit diagram of Fig. 2 D.Wherein, be for required electric current by power supply circuit 52.
Then, see also Fig. 2 A, among Fig. 2 A, the lighting cavity 45 of the leftmost side is divided into a first luminescence cavity 45a1 and a second luminescence cavity 45a2 by adjacent passage 47, luminous gas 48 among first luminescence cavity 45a1 and the second luminescence cavity 45a2 has a chamber impedance respectively in discharge process system, please refer to Fig. 2 E, first luminescence cavity 45a1 and second luminescence cavity 45a2 can be considered as a resistance r11 and a r12 respectively; Based on same principle, adjacent passage 47 also can be considered a resistance r2.In the present invention, in order to reach the inhomogeneous shortcoming of lighting of improving conventional planar fluorescent lamp 1 (Figure 1A to Fig. 1 D), therefore notion proposed by the invention is to promote significantly channel impedance (belonging to resistance r2), makes channel impedance greater than chamber impedance (belonging to resistance r11, r12).
By known to everybody, characteristic equation R=ρ L/A according to impedance, channel impedance R is proportional to a passage length L (please refer to Fig. 2 A) of passage 47, and a channel cross-sectional area A who is inversely proportional to passage 47 (please refer to Fig. 2 F, Fig. 2 F prolongs the side generalized section of e-e hatching for Fig. 2 A), and the gases situation of dissociating is relevant in the equiva lent impedance coefficient ρ of passage 47 and the passage 47.Therefore, the ratio with passage length L and channel cross-sectional area A is defined as one first coefficient; In like manner, the cavity length L1 (please refer to Fig. 2 A) of first luminescence cavity 45a1 and the ratio of the long-pending A ' (please refer to Fig. 2 C) of cavity cross-section are defined as one second coefficient, and, the cavity length L2 of second luminescence cavity 45a2 and the ratio of the long-pending A ' of cavity cross-section are defined as a tertiary system number.For guaranteeing that flat florescent lamp can evenly light, must guarantee when lighting channel impedance greater than chamber impedance, the ratio of first coefficient and second coefficient, and the ratio of first coefficient and tertiary system number must be simultaneously greater than 1/20.Meeting or surpassing under the situation of above-mentioned ratio, can reach the purpose of guaranteeing that other lighting cavity 45 can evenly be lighted smoothly, in addition, the ratio of first coefficient and second coefficient, and the ratio of first coefficient and tertiary system number can be simultaneously greater than 20.
On the implementation, the present invention utilizes lengthening passage length L and the mode of dwindling channel cross-sectional area A, to have a ratio relation respectively be purpose to meet the first above-mentioned coefficient and second coefficient and tertiary system number, and after the adjustment mode of above-mentioned passage length L and channel cross-sectional area A will be specified in.
Except the above, among Fig. 2 A, three lighting cavity 45 in putting are separated into three sub-lighting cavity by the adjacent passage 47 in the left and right sides respectively, enumerate several second lighting cavity 45 explanation in a left side at this.Shown in Fig. 2 A, several second lighting cavity 45 in a left side are separated into three sub-lighting cavity 45b1,45b2 and 45b3 by the adjacent passage 47 in the left and right sides, in Fig. 2 E, this a little lighting cavity 45b1,45b2 and 45b3 are considered as resistance r31, r32 and r33 respectively, and two adjacent passages can be considered resistance r2 and r4.Discuss based on leading portion, passage 47 has one first coefficient, and can be with each sub-lighting cavity 45b1, the cavity length L3 of 45b2 and 45b3, " ratio of (please refer to Fig. 2 C) is defined as a Quaternary system number; when channel impedance (belongs to resistance r2; r4) (belong to resistance r31; r32; r33); the ratio that is control first coefficient and Quaternary system number must be greater than 1/20 greater than chamber impedance for L4 and L5 (please refer to Fig. 2 A) and the long-pending A of cavity cross-section, in addition, the ratio of first coefficient and Quaternary system number also can be greater than 20, meeting or surpassing under the situation of above-mentioned ratio, can reach the purpose of guaranteeing that other lighting cavity 45 can be lighted smoothly.
Then, the present invention's employing just is described in detail in detail with lengthening passage length L or dwindle the execution mode of channel cross-sectional area A, aspect lengthening passage length L, is please refer to Fig. 2 A, the execution mode of Fig. 2 A is: make the passage 47 oblique diaphragm structures 43 that run through, to increase passage length L.No matter be not difficult to learn that any passage 47 oblique change execution modes that run through diaphragm structure 43 that make all should belong to spreading out of Fig. 2 A embodiment of the present invention and stretch execution mode at this, be to adopt different angles of inclination, or make passage 47 run through all right according to different cross section is oblique.
Please refer to Fig. 3 A, Fig. 3 A looks schematic diagram on another embodiment of the present invention, and the mode of this embodiment is: making passage 47 is the passage of a warpage, to increase passage length L.Similarly execution mode can be with reference to Fig. 3 B, and Fig. 3 B looks schematic diagram on another embodiment of the present invention, and wherein, passage 47 has two joggling parts, and becomes the passage of a N type.In like manner, utilize the mode of warpage to increase the execution mode of the length of passage 47, the change embodiment of multiple not icon can be arranged.
Aspect the implementation method of dwindling channel cross-sectional area A, then ask Figure 1A of comparison diagram 2A and conventional art.In conventional art, the width of passage 17 (Figure 1A) is in general very close with the width of lighting cavity 15, in the present invention, then utilize the mode of dwindling passage 47 (Fig. 2 A), make the width of passage 47 much smaller than the width of lighting cavity 45, can reach the effect of dwindling channel cross-sectional area A thus.Another embodiment please refer to Fig. 4, and Fig. 4 prolongs another embodiment side generalized section of e-e hatching for Fig. 2 A, wherein, is to make the height h of passage 47, only accounts for the some of the height H of whole diaphragm structure 43.Thus, also can reach the effect of dwindling channel cross-sectional area A.
Comprehensively the above the invention provides a kind of plane fluorescent lamp structure 40.Wherein, still kept passage 47, so plane fluorescent lamp structure of the present invention 40 still can utilize the vacuum suction of single in manufacturing process, and the filling step of the luminous gas 48 of single, be about to luminous gas 48 and flow into a plurality of lighting cavity 45.And because the present invention (sees also Fig. 4 D for lighting cavity 45 and passage 47 indivedual equivalent chamber impedance when feeding electric current, r11, r12, r31, r32, r33, r51, r52, r53, r71, r72, r73, r91 and r92) (see also Fig. 4 D with channel impedance, r2, r4, r6 and r8) carry out relevant planning, make channel impedance much larger than chamber impedance, thus, can avoid the electric current of the predetermined lighting cavity 45 of flowing through to choose the road through from passage 47, and the situation that causes some lighting cavity 45 to be lighted.The present invention not only helps the lifting of flat florescent lamp 4 product yields, can avoid product do over again or discarded and help the reduction of cost; As seen and the present invention there is no the additional step that causes on the manufacture craft, outstanding for the help that industry promotes.
Though the present invention illustrates as above with preferred embodiment, so it is not only to terminate in the foregoing description in order to limit the present invention's spirit with the invention entity.To being familiar with this operator, when understanding and utilize other assembly or mode to produce identical effect easily.Therefore, the modification of being done in not breaking away from spirit of the present invention and scope all should be included in the present invention.
Claims (41)
1. plane fluorescent lamp structure comprises:
One first substrate;
One second substrate, first substrate is relative assembles with this, and forms a confined space jointly;
At least one diaphragm structure is separated into a plurality of lighting cavity with this confined space;
One passage connects this diaphragm structure, so that these a plurality of lighting cavity communicate,
At this passage an above-mentioned lighting cavity is divided under the situation of the first luminescence cavity that adjoins each other and a second luminescence cavity,
One fluorescent material is disposed at the inwall of these a plurality of lighting cavity; And
One luminous gas is filled in these a plurality of lighting cavity;
Wherein, one passage length of this passage and the ratio of a channel cross-sectional area are defined as one first coefficient, the long-pending ratio of one cavity length of this first luminescence cavity and a cavity cross-section is defined as one second coefficient, and the long-pending ratio of a cavity length of this second luminescence cavity and a cavity cross-section is defined as a tertiary system number;
Wherein, the ratio of this first coefficient and this second coefficient is greater than 1/20.
2. plane fluorescent lamp structure according to claim 1, wherein the ratio of this first coefficient and this tertiary system number is greater than 1/20.
3. plane fluorescent lamp structure according to claim 1, wherein oblique this diaphragm structure that runs through of this passage.
4. plane fluorescent lamp structure according to claim 1, wherein this passage is the passage of a warpage.
5. plane fluorescent lamp structure according to claim 1, wherein this channel cross-sectional area is long-pending less than this cavity cross-section.
6. plane fluorescent lamp structure according to claim 1, wherein this diaphragm structure and this first substrate and this second substrate are one-body molded.
7. plane fluorescent lamp structure according to claim 1, wherein this diaphragm structure is formed on this first substrate one-body moldedly.
8. plane fluorescent lamp structure according to claim 1 also comprises an interval colloid (sealant), between this diaphragm structure and this second substrate.
9. plane fluorescent lamp structure according to claim 1, wherein the material of this first substrate and this second substrate comprises glass.
10. plane fluorescent lamp structure according to claim 1, wherein this luminous gas comprises an inert gas.
11. plane fluorescent lamp structure according to claim 10, wherein this inert gas is selected from xenon, neon or argon gas.
12. plane fluorescent lamp structure according to claim 11, wherein oblique this diaphragm structure that runs through of this passage.
13. plane fluorescent lamp structure according to claim 11, wherein this passage is the passage of a warpage.
14. plane fluorescent lamp structure according to claim 11, wherein this channel cross-sectional area is long-pending less than this cavity cross-section.
15. plane fluorescent lamp structure according to claim 11, wherein this diaphragm structure and this first substrate and this second substrate are one-body molded.
16. plane fluorescent lamp structure according to claim 11, wherein this diaphragm structure is formed on this first substrate one-body moldedly.
17. plane fluorescent lamp structure according to claim 16 also comprises an interval colloid, between this diaphragm structure and this second substrate.
18. plane fluorescent lamp structure according to claim 11, wherein the material of this first substrate and this second substrate comprises glass.
19. a flat florescent lamp comprises:
One first substrate;
One second substrate, first substrate is relative assembles with this, and forms a confined space jointly;
At least one diaphragm structure is separated into this a plurality of lighting cavity with this confined space;
One passage connects this diaphragm structure, and wherein this passage is communicated with adjacent these a plurality of lighting cavity, and the sectional area of this passage is less than the sectional area of this lighting cavity;
At least one electrode contacts with these a plurality of lighting cavity;
One fluorescent material is disposed at the inwall of these a plurality of lighting cavity; And
One luminous gas is filled in these a plurality of lighting cavity,
Wherein, this passage is divided into an above-mentioned lighting cavity first luminescence cavity and a second luminescence cavity that adjoins each other, one passage length of this passage and the ratio of a channel cross-sectional area are defined as one first coefficient, the long-pending ratio of one cavity length of this first luminescence cavity and a cavity cross-section is defined as one second coefficient, the long-pending ratio of one cavity length of this second luminescence cavity and a cavity cross-section is defined as a tertiary system number, and the ratio of this first coefficient and this second coefficient is greater than 1/20.
20. flat florescent lamp according to claim 19, wherein the ratio of this first coefficient and this tertiary system number is greater than 1/20.
21. a plane fluorescent lamp structure comprises:
One first substrate;
One second substrate, first substrate is relative assembles with this, and forms a confined space jointly;
At least one diaphragm structure is separated into a plurality of lighting cavity with this confined space;
At least one passage connects this diaphragm structure, so that these a plurality of lighting cavity communicate, the number of this at least one passage is a predetermined number, and an above-mentioned lighting cavity is divided into predetermined number+1 a sub-lighting cavity by a contiguous above-mentioned predetermined number channel region,
One fluorescent material is disposed at the inwall of these a plurality of lighting cavity; And
One luminous gas is filled in these a plurality of lighting cavity;
Wherein, one passage length of this passage and the ratio of a channel cross-sectional area are defined as one first coefficient, the long-pending ratio of one cavity length of a sub-lighting cavity and a cavity cross-section is defined as one second coefficient, and the long-pending ratio of a cavity length of another sub-lighting cavity and a cavity cross-section is defined as a tertiary system number; Wherein, the ratio of this first coefficient and this second coefficient is greater than 1/20.
22. plane fluorescent lamp structure according to claim 21, wherein the ratio of this first coefficient and this tertiary system number is greater than 1/20.
23. plane fluorescent lamp structure according to claim 21, wherein oblique this diaphragm structure that runs through of this passage.
24. plane fluorescent lamp structure according to claim 21, wherein this passage is the passage of a warpage.
25. plane fluorescent lamp structure according to claim 21, wherein this channel cross-sectional area is long-pending less than this cavity cross-section.
26. plane fluorescent lamp structure according to claim 21, wherein this diaphragm structure and this first substrate and this second substrate are one-body molded.
27. plane fluorescent lamp structure according to claim 21, wherein this diaphragm structure is formed on this first substrate one-body moldedly.
28. plane fluorescent lamp structure according to claim 21 also comprises an interval colloid (sealant), between this diaphragm structure and this second substrate.
29. plane fluorescent lamp structure according to claim 21, wherein the material of this first substrate and this second substrate comprises glass.
30. plane fluorescent lamp structure according to claim 21, wherein this luminous gas comprises an inert gas.
31. plane fluorescent lamp structure according to claim 30, wherein this inert gas is selected from xenon, neon or argon gas.
32. plane fluorescent lamp structure according to claim 21, wherein, this predetermined number is 2 o'clock, the number of this a little lighting cavity is 3, wherein, again in another sub-lighting cavity a cavity length and the long-pending ratio of a cavity cross-section be defined as a Quaternary system number, the ratio of this first coefficient and this Quaternary system number is greater than 1/20.
33. plane fluorescent lamp structure according to claim 23, wherein oblique this diaphragm structure that runs through of this passage.
34. plane fluorescent lamp structure according to claim 23, wherein this passage is the passage of a warpage.
35. plane fluorescent lamp structure according to claim 23, wherein this channel cross-sectional area is long-pending less than this cavity cross-section.
36. plane fluorescent lamp structure according to claim 23, wherein this diaphragm structure and this first substrate and this second substrate are one-body molded.
37. plane fluorescent lamp structure according to claim 23, wherein this diaphragm structure is formed on this first substrate one-body moldedly.
38., also comprise an interval colloid, between this diaphragm structure and this second substrate according to the described plane fluorescent lamp structure of claim 37.
39. plane fluorescent lamp structure according to claim 23, wherein the material of this first substrate and this second substrate comprises glass.
40. plane fluorescent lamp structure according to claim 23, wherein this luminous gas comprises an inert gas.
41. according to the described plane fluorescent lamp structure of claim 40, wherein this inert gas is selected from xenon, neon or argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100748978A CN1913094B (en) | 2005-12-26 | 2006-04-25 | Flat fluorescent lamp structure and flat fluorescent lamp |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510136259 CN1790606A (en) | 2005-12-26 | 2005-12-26 | Flat Fluorescent Lamp Structure |
| CN200510136259.X | 2005-12-26 | ||
| CN2006100748978A CN1913094B (en) | 2005-12-26 | 2006-04-25 | Flat fluorescent lamp structure and flat fluorescent lamp |
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| Publication Number | Publication Date |
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| CN1913094A CN1913094A (en) | 2007-02-14 |
| CN1913094B true CN1913094B (en) | 2010-12-08 |
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| CN2006100748978A Expired - Fee Related CN1913094B (en) | 2005-12-26 | 2006-04-25 | Flat fluorescent lamp structure and flat fluorescent lamp |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6114809A (en) * | 1998-02-02 | 2000-09-05 | Winsor Corporation | Planar fluorescent lamp with starter and heater circuit |
| US20050162088A1 (en) * | 2002-04-03 | 2005-07-28 | Lee Kye S. | Flat type fluorescent lamp |
-
2006
- 2006-04-25 CN CN2006100748978A patent/CN1913094B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6114809A (en) * | 1998-02-02 | 2000-09-05 | Winsor Corporation | Planar fluorescent lamp with starter and heater circuit |
| US20050162088A1 (en) * | 2002-04-03 | 2005-07-28 | Lee Kye S. | Flat type fluorescent lamp |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平8-273603A 1996.10.18 |
| JP特开平8-287871A 1996.11.01 |
| JP特开平9-92208A 1997.04.04 |
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| CN1913094A (en) | 2007-02-14 |
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