CN1684221A - Cold cathode fluorescent plane lamp and its driving method - Google Patents
Cold cathode fluorescent plane lamp and its driving method Download PDFInfo
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- CN1684221A CN1684221A CN 200410033863 CN200410033863A CN1684221A CN 1684221 A CN1684221 A CN 1684221A CN 200410033863 CN200410033863 CN 200410033863 CN 200410033863 A CN200410033863 A CN 200410033863A CN 1684221 A CN1684221 A CN 1684221A
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Abstract
This invention relates to a cold-cathode fluorescent plane lamp including a cavity, a fluorescent material, a discharge gas, first electrode couples and second electrode couples, among which, the cavity has a first internal wall and a second wall opposite to it, the fluorescent material is matched on the internal wall of the cavity, the discharge gas is in the cavity, the first electrode couples are on the first internal wall and every one has a first light emitting region, the second couples are set on the second internal wall and each has a second light emitting region, the electrode can be put outside of the cavity, among which, the two emitting regions are partly overlapped or completely not, so as to compensate regions not emitting light to further increase the lightening uniformity of the lamp.
Description
Technical field
(Cold Cathode Fluorescent FlatLamp CCFFL), particularly relates to a kind of cold-cathode fluorescent plant lamp and driving method thereof with bigger uniformly light-emitting area to the present invention relates to a kind of cold-cathode fluorescent plant lamp.
Background technology
Along with industry is flourishing day by day, mobile phone, digital camera, digital code camera, notebook, desktop computer or the like digitization tools develops towards direction more convenient, multi-functional and attractive in appearance invariably.Yet the display screen of mobile phone, digital camera, digital code camera, notebook, desktop computer is indispensable man-machine communication interface, and the display screen by the said goods can bring more facility for user's operation.In recent years, display screen on most mobile phone, digital camera, digital code camera, notebook and the desktop computer is a main flow with display panels (LCD panel) all, yet, because display panels itself does not have luminous function, so below display panels, must provide a backlight module (back light module) so that light source to be provided, and then reach the function of demonstration.
Existing known common backlight module is made of a fluorescent tube, a reflector (holder) and a light guide plate (LGP).Above-mentioned light guide plate can be converted to the linear light that fluorescent tube sent the kenel of area source, because fluorescent tube is disposed at the side of light guide plate usually, so it is relatively poor by the area source uniformity that light guide plate is throwed, so must be on the light-emitting face of light guide plate configurable number layer blooming piece (as diaphragms such as diffusion sheet, brightening pieces), yet light guide plate and blooming piece cost an arm and a leg, and it causes the cost of backlight module to improve.In addition, because fluorescent tube, reflector and light guide plate all are independent members, must be with a glue frame that above-mentioned fluorescent tube, reflector and light guide plate carrying is fixing in addition.So know as available from the above, this kind backlight module is comparatively loaded down with trivial details in assembling, and assembly cost also can't further reduce.
Consider based on above-mentioned, prior art develops and a kind of cold-cathode fluorescent plant lamp (Cold CathodeFluorescent Flat Lamp, CCFFL), because cold-cathode fluorescent plant lamp has good illumination efficiency and uniformity, and large-area area source can be provided, so cold-cathode fluorescent plant lamp extensively is applied on the backlight and other application of display panels.
From the above, cold-cathode fluorescent plant lamp belongs to a kind of electricity slurry luminescence component, and it is a configured electrodes in a cavity, utilize electronics to penetrate the back by negative electrode and and the negative electrode in the cavity and the inert gas between anode produce collision, and with gas ionization to form the electricity slurry.Afterwards, the gas atom that is in excite state in the electricity slurry can radiate ultraviolet ray when getting back to ground state, and the ultraviolet ray of being radiated then can further excite the fluorescent material of coating cavity inner wall, to produce visible light.
The type of drive major part of cold-cathode fluorescent plant lamp is to adopt controllable partial discharge mode at present, for example be a plurality of prominent points of design on the electrode, so that electrode produces point discharge at this prominent a bit some place, and then make large-area cold-cathode fluorescent plant lamp as being formed by many facet lamps.
Yet the mode of this kind partial discharge but can cause cold-cathode fluorescent plant lamp to produce stronger light intensity in the part easily, thereby the bright dark staggered lines of systematicness occurs, and then influences the luminous uniformity of cold-cathode fluorescent plant lamp integral body.
This shows that above-mentioned existing cold-cathode fluorescent plant lamp and driving method thereof obviously still have inconvenience and defective, and demand urgently further being improved in structure, method and use.In order to solve the problem that cold-cathode fluorescent plant lamp and driving method thereof exist, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing cold-cathode fluorescent plant lamp and driving method thereof exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of cold-cathode fluorescent plant lamp and the driving method thereof of founding a kind of new structure, can improve general existing cold-cathode fluorescent plant lamp and driving method thereof, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing cold-cathode fluorescent plant lamp and driving method thereof exist, and a kind of new cold-cathode fluorescent plant lamp, technical problem to be solved are provided is to make it can send brightness light comparatively uniformly, thereby is suitable for practicality more.
Another object of the present invention is to, a kind of driving method of cold-cathode fluorescent plant lamp is provided, technical problem to be solved is to make its luminous uniformity that improves cold-cathode fluorescent plant lamp, thereby is suitable for practicality more.
A further object of the present invention is, a kind of cold-cathode fluorescent plant lamp is provided, technical problem to be solved is to make to have the larger area region of discharge between its electrode, and the area of the light-emitting zone of cold-cathode fluorescent plant lamp also thereby increase, and then the uniformity of the light that whole cold-cathode fluorescent plant lamp sends is improved, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of cold-cathode fluorescent plant lamp that the present invention proposes, it comprises: a cavity has one first inwall and one second inwall relative with this first inwall; One fluorescent material is configured on the inwall of this cavity; One discharge gas is disposed in this cavity; Most group first electrode pairs are configured on this first inwall of this cavity, and each those first electrode pair comprises a first anode and one first negative electrode, are one first luminous zone between this first anode in each those first electrode pair and this first negative electrode wherein; And most group second electrode pairs, be configured on this second inwall of this cavity, and each those second electrode pair comprises a second plate and one second negative electrode, is one second luminous zone between this second plate in each those second electrode pair and this second negative electrode wherein.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid cold-cathode fluorescent plant lamp, wherein said cavity comprises: one first substrate; One second substrate is positioned at this first substrate top; And an edge strip, between this first substrate and this second substrate, and this edge strip is to be connected with the edge of this first substrate and this second substrate.
Aforesaid cold-cathode fluorescent plant lamp, wherein said those first electrode pairs are to be configured on this first substrate, and those second electrode pairs are to be configured on this second substrate.
Aforesaid cold-cathode fluorescent plant lamp, wherein said each those first luminous zone be the part be not overlapped in those second luminous zones one of them.
Aforesaid cold-cathode fluorescent plant lamp, wherein said each those first luminous zone do not weigh fully in those second luminous zones one of them.
Aforesaid cold-cathode fluorescent plant lamp, wherein said those first anode and those first negative electrodes comprise that the order with anode, negative electrode, negative electrode and anode is arranged on this first inwall.
Aforesaid cold-cathode fluorescent plant lamp, wherein said those second plates and those second negative electrodes comprise that the order with anode, negative electrode, negative electrode and anode is arranged on this second inwall.
Aforesaid cold-cathode fluorescent plant lamp comprises most salient points on wherein said each those first and second anode/cathode.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.The driving method of a kind of cold-cathode fluorescent plant lamp that proposes according to the present invention, be suitable for improving the luminous uniformity of a cold-cathode fluorescent plant lamp, the driving method of this cold-cathode fluorescent plant lamp may further comprise the steps: make this cold-cathode fluorescent plant lamp alternately produce most first luminous zones and most second luminous zones, wherein those first luminous zones and those second luminous zones do not overlap fully, and the frequency that those first luminous zones and those second luminous zones alternately produce is to be higher than the cognizable scope of human eye.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The driving method of aforesaid cold-cathode fluorescent plant lamp, the frequency that wherein said those first luminous zones and those second luminous zones alternately produce is per second 16 times.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.The driving method of a kind of cold-cathode fluorescent plant lamp that proposes according to the present invention, be suitable for improving the luminous uniformity of a cold-cathode fluorescent plant lamp, the driving method of this cold-cathode fluorescent plant lamp may further comprise the steps: make this cold-cathode fluorescent plant lamp alternately produce most first luminous zones and most second luminous zones, wherein those first luminous zones are not overlap with those second luminous zone parts, and the frequency that those first luminous zones and those second luminous zones alternately produce is to be higher than the cognizable scope of human eye.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The driving method of aforesaid cold-cathode fluorescent plant lamp, the frequency that wherein said those first luminous zones and those second luminous zones alternately produce is per second 16 times.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of cold-cathode fluorescent plant lamp that the present invention proposes, it comprises: a cavity; One discharge gas is disposed in this cavity; One fluorescent material is configured on the inwall of this cavity; Most group electrode pairs are configured on the inwall of this cavity, and each those electrode pair has most first salient points and most second salient points relative with it respectively, and wherein those first salient points and those second salient points do not line up.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid cold-cathode fluorescent plant lamp, wherein said those first salient points and those second salient points are equidistant arrangements, and those first salient points equate with the arrangement pitches of those second salient points.
Aforesaid cold-cathode fluorescent plant lamp, wherein said each those first salient point be with two adjacent those second salient points between mid point align.
Aforesaid cold-cathode fluorescent plant lamp, wherein said cavity comprises: one first substrate; One second substrate is positioned at this first substrate top; And an edge strip, between this first substrate and this second substrate, and this edge strip is to be connected with the edge of this first substrate and this second substrate.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of cold-cathode fluorescent plant lamp, mainly is to be made of cavity, fluorescent material, discharge gas, first electrode pair and second electrode pair.Wherein, cavity has first inwall and second inwall relative with first inwall.Fluorescent material is to be configured on the inwall of cavity, and discharge gas then is to be configured in the cavity.First electrode pair is to be configured on first inwall, also can place outer wall, and comprises the first anode and first negative electrode in each first electrode pair.Wherein, be first luminous zone between the first anode and first negative electrode.And second electrode pair is to be configured on second inwall, also can place outer wall, and comprises the second plate and second negative electrode in each second electrode pair.And, be second luminous zone between the second plate and second negative electrode.
Described according to embodiments of the invention, cavity is made of first substrate, second substrate and edge strip.Wherein, second substrate is the top that is positioned at first substrate, and edge strip then is between first substrate and second substrate, and connects the edge of first and second substrate.
Described according to embodiments of the invention, each first luminous zone be the part be overlapped in these a little second luminous zones one of them.And preferably, each first luminous zone be not overlapped in fully these a little second luminous zones one of them.
Described according to the embodiment of the invention, the first anode and first negative electrode for example are that the order with anode, negative electrode, negative electrode and anode is arranged on first inwall.And for example being order with anode, negative electrode, negative electrode and anode, the second plate and second negative electrode be arranged on second inwall.
Described according to embodiments of the invention, comprise a plurality of salient points on first and second anode/cathode.
The present invention also proposes a kind of driving method of cold-cathode fluorescent plant lamp, is suitable for improving the luminous uniformity of cold-cathode fluorescent plant lamp.The method is to make cold-cathode fluorescent plant lamp alternately produce a plurality of first and second luminous zones, and wherein first luminous zone and second luminous zone are that part overlaps.And the frequency that first and second luminous zone alternately produces is the scope that is higher than the energy identification of human eye institute.
Described according to preferred embodiment of the present invention, the frequency that first luminous zone and second luminous zone alternately produce for example is per second 16 times.
The present invention also proposes a kind of driving method of cold-cathode fluorescent plant lamp, is suitable for improving the luminous uniformity of cold-cathode fluorescent plant lamp.The method is to make cold-cathode fluorescent plant lamp alternately produce a plurality of first and second luminous zones, and wherein first luminous zone and second luminous zone do not overlap fully.And the frequency that first and second luminous zone alternately produces is the scope that is higher than the energy identification of human eye institute.
Described according to embodiments of the invention, the frequency that first luminous zone and second luminous zone alternately produce for example is per second 16 times.
The present invention proposes a kind of cold-cathode fluorescent plant lamp, mainly be by cavity, discharge gas, fluorescent material and multi-group electrode to constitute.Wherein, discharge gas is to be disposed in the cavity, and fluorescent material is to be configured on the inwall of cavity.And electrode pair is to be configured on the inwall of cavity, also can place outer wall, and each electrode pair has a plurality of first salient points and a plurality of second salient points relative with first salient point respectively.Wherein, a little therewith second salient points of each first salient point one of them do not line up.
Described according to embodiments of the invention, these a little first salient points and second salient point are equidistant arrangements, and first salient point equates with the arrangement pitches of second salient point.
Described according to embodiments of the invention, each first salient point be with two adjacent second salient points between mid point align.
Described according to embodiments of the invention, cavity is made of first substrate, second substrate and edge strip.Wherein, second substrate is the top that is positioned at first substrate, and edge strip then is between first substrate and second substrate, and connects the edge of first and second substrate.
The present invention is the luminous zone of a plurality of diverse locations of design in cold-cathode fluorescent plant lamp, and drive this a little luminous zones in turn in the mode that replaces apace, so that human eye is looked the light source of this cold-cathode fluorescent plant lamp is a large-area area source, thereby avoids the problem of the bright dark lines that existing known cold-cathode fluorescent plant lamp occurs because of the type of drive of partial discharge.
In addition, in the middle of same group of electrode pair of the present invention, the discharge of two salient points on its pairing anode respectively of each salient point on the negative electrode.Therefore, the interelectrode region of discharge in the cold-cathode fluorescent plant lamp of the present invention is greater than the region of discharge in the existing known cold-cathode fluorescent plant lamp.That is to say, cold-cathode fluorescent plant lamp of the present invention unitary electrode among, have bigger light-emitting zone, and then provide cold-cathode fluorescent plant lamp the higher whole luminous uniformity.
Via as can be known above-mentioned, the invention relates to a kind of cold-cathode fluorescent plant lamp, it comprises cavity, fluorescent material, discharge gas, first electrode pair and second electrode pair.Wherein, cavity has first inwall and second inwall relative with first inwall.Fluorescent material is to be configured on the inwall of cavity, and discharge gas then is to be disposed in the cavity.First electrode pair is to be configured on first inwall, and has one first luminous zone in each first electrode pair.And second electrode pair is to be configured on second inwall, and has one second luminous zone in each second electrode pair, and first electrode pair and second electrode pair also can place outside the cavity.Wherein first luminous zone and second luminous zone are for part weighs or do not overlap fully, so that the not luminous therebetween zone that compensates one another, and then the luminous uniformity of raising cold-cathode fluorescent plant lamp.
By technique scheme, cold-cathode fluorescent plant lamp of the present invention and driving method thereof have following advantage at least: the invention provides a kind of new cold-cathode fluorescent plant lamp, make it can send brightness light comparatively uniformly; The invention provides a kind of driving method of cold-cathode fluorescent plant lamp, improved the luminous uniformity of cold-cathode fluorescent plant lamp; The present invention also provides a kind of cold-cathode fluorescent plant lamp, make and have the larger area region of discharge between its electrode, and the area of the light-emitting zone of cold-cathode fluorescent plant lamp also thereby increase, and then improved the uniformity of the light that whole cold-cathode fluorescent plant lamp sent.
In sum, the cold-cathode fluorescent plant lamp of special construction of the present invention and driving method thereof, it has above-mentioned many advantages and practical value, and in like product and driving method, do not see have similar structural design and method to publish or use and really genus innovation, no matter it is at product structure, bigger improvement is all arranged on driving method or the function, have large improvement technically, and produced handy and practical effect, and more existing cold-cathode fluorescent plant lamp and driving method thereof have the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Concrete structure of the present invention and driving method thereof are provided in detail by following examples and accompanying drawing.
Description of drawings
Fig. 1 is the generalized section of a kind of cold-cathode fluorescent plant lamp of a preferred embodiment of the present invention.
Fig. 2 is the generalized section of a kind of cold-cathode fluorescent plant lamp of another preferred embodiment of the present invention.
Fig. 3 is the wherein one group of electrode pair in the cold-cathode fluorescent plant lamp of the present invention.
100,200: cold-cathode fluorescent plant lamp 102: cavity
104: discharge gas 106: fluorescent material
110: the second electrode pairs of 108: the first electrode pairs
114: the second substrates of 112: the first substrates
116: edge strip 120: the first anode
122: 130: the first negative electrodes of second plate
140: the first luminous zones of 132: the second negative electrodes
The luminous zone 160 in 150: the second: luminous zone not
300: negative electrode 302: anode
306: the second salient points of 304: the first salient points
P: 1 Q on the anode: a bit on the negative electrode
L: the boost line of ordering by P point and Q
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to cold-cathode fluorescent plant lamp and its embodiment of driving method, structure, driving method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The present invention is at cold-cathode fluorescent plant lamp (Cold Cathode Fluorescent Flat Lamp, CCFFL) change the allocation position and the arrangement mode of electrode among, and propose a kind of driving method and drive cold-cathode fluorescent plant lamp, to promote the luminous uniformity of cold-cathode fluorescent plant lamp.Below will describe the allocation position and the arrangement mode thereof of the driving method of cold-cathode fluorescent plant lamp of the present invention and electrode wherein in detail for embodiment.Yet these embodiment only are in order to illustrate, and are not in order to limit the present invention.
See also the generalized section of a kind of cold-cathode fluorescent plant lamp that Figure 1 shows that a preferred embodiment of the present invention.And "+" that Fig. 1 indicates and "-" are in order to the polarity of expression electrode, and wherein "+" represents anode, and "-" represents negative electrode.
See also shown in Figure 1ly, cold-cathode fluorescent plant lamp 100 is made of cavity 102, discharge gas 104, fluorescent material 106, first electrode pair 108 and second electrode pair 110.Wherein, cavity 102 has first inwall and second inwall relative with it.And in the present embodiment, cavity 102 is made of first substrate 112, the edge strip 116 that is positioned at second substrate 114 of first substrate, 112 tops and connects the edge of first substrate 112 and second substrate 114.Therefore, to be first substrate, 112, the second inwalls then be second substrate 114 to first inwall in the present embodiment.
Fluorescent material 106 is to be configured on the inwall of cavity 102, and it for example is to be configured on first substrate 112 and second substrate 114.Discharge gas 104 then is to be configured within the cavity 102, and it for example is xenon (Xe), neon (Ne) or argon gas inert gases such as (Ar).
First electrode pair 108 is to be configured on first inwall of cavity 102, promptly is to be configured on first substrate 112 in the present embodiment.And each first electrode pair 108 is made of a first anode 120 (Fig. 1 be denoted as+number) and one first negative electrode 130.Specifically, these a little first anode 120 and second negative electrode 130 are that order with anode, negative electrode, negative electrode and anode is arranged on first substrate 112, as shown in Figure 1.Second electrode pair 110 then is to be configured on second inwall of cavity 102, for example is to be configured on second substrate 114.And each second electrode pair 110 is made of a second plate 122 and one second negative electrode 132.And these a little second plates 122 are identical with the ordering of second negative electrode 130 on first substrate 112 with the first anode 120 with second negative electrode 132 at the ordering on second substrate 114.
Cold-cathode fluorescent plant lamp 100 is to come driven for emitting lights mechanism by interelectrode discharge, and in the present invention, this luminous mechanism can form first luminous zone 140 between the first anode 120 in each first electrode pair 108 and first negative electrode 130, and form second luminous zone 150 between the second plate 122 in each second electrode pair 110 and second negative electrode 132, as shown in Figure 1.Yet, first luminous zone 140 that Fig. 1 indicated and the scope of second luminous zone 150 only are in order to its whereabouts of simple declaration, haveing the knack of this skill person will be appreciated that, the actual range of first luminous zone 140 and second luminous zone 150 should be decided on other parameter, for example is atomicity of being excited of discharge gas 104 or the like.Specifically, the position of first luminous zone 140 and second luminous zone 150 is to have part not overlap, so that compensate not luminous zone 160 mutually between first electrode pair 108 and second electrode pair 110.
In addition, in another embodiment of the present invention, more preferably first luminous zone 140 and second luminous zone 150 do not overlap fully.Fig. 2 is the generalized section of a kind of cold-cathode fluorescent plant lamp of another preferred embodiment of the present invention.The difference of Fig. 2 and Fig. 1 only is the allocation position of electrode, and therefore, other assembly label of Fig. 2 is same as shown in Figure 1, and its material, allocation position and to form member etc. all similar or be same as the explanation of Fig. 1 below will repeat no more.
See also shown in Figure 2ly, first luminous zone 140 of cold-cathode fluorescent plant lamp 200 is alternately to be arranged among the cavity 102 with second luminous zone 150.Therefore, but not luminous zone 160 between these a little second electrode pairs 110 of first luminous zone, 140 full remunerations, but not luminous zone 160 between these a little first electrode pairs 108 of full remuneration then, second luminous zone 150.
In order to make first luminous zone 140 and second luminous zone 150 among above-mentioned two embodiment reach complementary effect, the present invention proposes a kind of driving method of cold-cathode fluorescent plant lamp especially.Please consult Figure 1 and Figure 2 again, this driving method is driven first electrode pair 108 and second electrode pair 110, so first electrode pair 108 and second electrode pair 110 can be with frequency alternating discharges.That is to say that therefore cold-cathode fluorescent plant lamp 100 will produce first luminous zone 140 and second luminous zone 150 that alternately occurs with cold-cathode fluorescent plant lamp 200.Wherein, this kind driving method for example is to drive first electrode pair 108 and second electrode pair 110 with the string ripple or the voltage of the waveform of impulse wave.
Frequency that it should be noted that first electrode pair 108 and second electrode pair, 110 alternating discharges must be higher than human eye can identification scope so that human eye produces the phenomenon of the persistence of vision.And because the overlapping fully of first luminous zone 140 and second luminous zone 150, so the not luminous therebetween zone 160 that can compensate one another.Therefore, human eye also can't pick out not light-emitting zone 160.Hence one can see that, and the present invention can avoid existing known cold-cathode fluorescent plant lamp to produce the significantly problem of bright dark lines.In the present embodiment, the frequency of first electrode pair 108 and second electrode pair, 110 alternating discharges for example is per second 16 times.
More particularly, the electrode in the cold-cathode fluorescent plant lamp of the present invention all has a plurality of salient points.Fig. 3 is the wherein one group of electrode pair in the cold-cathode fluorescent plant lamp of the present invention.See also shown in Figure 3, this group electrode pair be to constitute by negative electrode 300 and anode 302.Wherein anode 302 is to have a plurality of first salient points 304, and negative electrode 300 then has a plurality of second salient points 306 relative with first salient point 304.First salient point 304 and second salient point 306 are to be equidistant arrangement, and first salient point 304 equates with the arrangement pitches of second salient point 306.Specifically, each first salient point, 304 neither alignment second salient point 306.And preferably, each first salient point 304 is the mid points of 306 of 2 second adjacent salient points of aliging respectively.
It should be noted that so-called alignment herein, meaning promptly can vertical cathode 300 or during the bearing of trend of anode 302 as the online L of 1 Q on 1 P on the anode 302 and the negative electrode 300, then is called the P point Q point that aligns, or the Q point P point that aligns.
After driving this group electrode pair, anode 302 and negative electrode 300 can produce electric discharge phenomena between first salient point 304 and second salient point 306.And each first salient point 304 can discharge to its pairing adjacent 2 second salient points 306 respectively, thereby has increased the light-emitting area between this group electrode pair, and then improves the luminous uniformity of cold-cathode fluorescent plant lamp.
In sum, the present invention is the luminous zone of a plurality of diverse locations of design in cold-cathode fluorescent plant lamp, and drive this a little luminous zones in turn in the mode that replaces apace, so that human eye is looked the light source of this cold-cathode fluorescent plant lamp is a large-area area source, thereby avoids the problem of the bright dark lines that existing known cold-cathode fluorescent plant lamp occurs because of the type of drive of partial discharge.
In addition, the electrode in the cold-cathode fluorescent plant lamp of the present invention also has the salient point that is different from existing conventional designs.In the middle of same group of electrode pair of the present invention, the discharge of two salient points on its pairing anode respectively of each salient point on the negative electrode.Therefore, the interelectrode region of discharge in the cold-cathode fluorescent plant lamp of the present invention is greater than the region of discharge that has now in the known cold-cathode fluorescent plant lamp.That is to say, cold-cathode fluorescent plant lamp of the present invention unitary electrode among, have bigger light-emitting zone, and then provide cold-cathode fluorescent plant lamp the higher whole luminous uniformity.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (16)
1, a kind of cold-cathode fluorescent plant lamp is characterized in that it comprises:
One cavity has one first inwall and one second inwall relative with this first inwall;
One fluorescent material is configured on the inwall of this cavity;
One discharge gas is disposed in this cavity;
Most group first electrode pairs are configured on this first inwall of this cavity, and each those first electrode pair comprises a first anode and one first negative electrode, are one first luminous zone between this first anode in each those first electrode pair and this first negative electrode wherein; And
Most group second electrode pairs are configured on this second inwall of this cavity, and each those second electrode pair comprises a second plate and one second negative electrode, are one second luminous zone between this second plate in each those second electrode pair and this second negative electrode wherein.
2, cold-cathode fluorescent plant lamp according to claim 1 is characterized in that wherein said cavity comprises:
One first substrate;
One second substrate is positioned at this first substrate top; And
One edge strip, between this first substrate and this second substrate, and this edge strip is to be connected with the edge of this first substrate and this second substrate.
3, cold-cathode fluorescent plant lamp according to claim 2 it is characterized in that wherein said those first electrode pairs are to be configured on this first substrate, and those second electrode pairs is to be configured on this second substrate.
4, cold-cathode fluorescent plant lamp according to claim 1, it is characterized in that wherein said each those first luminous zone be the part be not overlapped in those second luminous zones one of them.
5, cold-cathode fluorescent plant lamp according to claim 1, it is characterized in that wherein said each those first luminous zone be not overlapped in fully those second luminous zones one of them.
6, cold-cathode fluorescent plant lamp according to claim 1 is characterized in that wherein said those first anode and those first negative electrodes comprise that the order with anode, negative electrode, negative electrode and anode is arranged on this first inwall.
7, cold-cathode fluorescent plant lamp according to claim 1 is characterized in that wherein said those second plates and those second negative electrodes comprise that the order with anode, negative electrode, negative electrode and anode is arranged on this second inwall.
8, cold-cathode fluorescent plant lamp according to claim 1 is characterized in that comprising on wherein said each those first and second anode/cathode most salient points.
9, a kind of driving method of cold-cathode fluorescent plant lamp is suitable for improving the luminous uniformity of a cold-cathode fluorescent plant lamp, and the driving method of this cold-cathode fluorescent plant lamp is characterised in that it may further comprise the steps:
Make this cold-cathode fluorescent plant lamp alternately produce most first luminous zones and most second luminous zones, wherein those first luminous zones and those second luminous zones do not overlap fully, and the frequency that those first luminous zones and those second luminous zones alternately produce is to be higher than the cognizable scope of human eye.
10, the driving method of cold-cathode fluorescent plant lamp according to claim 9 is characterized in that the frequency that wherein said those first luminous zones and those second luminous zones alternately produce is per second 16 times.
11, a kind of driving method of cold-cathode fluorescent plant lamp is suitable for improving the luminous uniformity of a cold-cathode fluorescent plant lamp, and the driving method of this cold-cathode fluorescent plant lamp is characterised in that it may further comprise the steps:
Make this cold-cathode fluorescent plant lamp alternately produce most first luminous zones and most second luminous zones, wherein those first luminous zones are not overlap with those second luminous zone parts, and the frequency that those first luminous zones and those second luminous zones alternately produce is to be higher than the cognizable scope of human eye.
12, the driving method of cold-cathode fluorescent plant lamp according to claim 11 is characterized in that the frequency that wherein said those first luminous zones and those second luminous zones alternately produce is per second 16 times.
13, a kind of cold-cathode fluorescent plant lamp is characterized in that it comprises:
One cavity;
One discharge gas is disposed in this cavity;
One fluorescent material is configured on the inwall of this cavity;
Most group electrode pairs are configured on the inwall of this cavity, and each those electrode pair has most first salient points and most second salient points relative with it respectively, and wherein those first salient points and those second salient points do not line up.
14, cold-cathode fluorescent plant lamp according to claim 13 it is characterized in that wherein said those first salient points and those second salient points are equidistant arrangements, and those first salient points equates with the arrangement pitches of those second salient points.
15, cold-cathode fluorescent plant lamp according to claim 13, it is characterized in that wherein said each those first salient point be with two adjacent those second salient points between mid point align.
16, cold-cathode fluorescent plant lamp according to claim 13 is characterized in that wherein said cavity comprises:
One first substrate;
One second substrate is positioned at this first substrate top; And
One edge strip, between this first substrate and this second substrate, and this edge strip is to be connected with the edge of this first substrate and this second substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410033863 CN1684221A (en) | 2004-04-15 | 2004-04-15 | Cold cathode fluorescent plane lamp and its driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410033863 CN1684221A (en) | 2004-04-15 | 2004-04-15 | Cold cathode fluorescent plane lamp and its driving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1684221A true CN1684221A (en) | 2005-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410033863 Pending CN1684221A (en) | 2004-04-15 | 2004-04-15 | Cold cathode fluorescent plane lamp and its driving method |
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| Country | Link |
|---|---|
| CN (1) | CN1684221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026081B (en) * | 2006-02-24 | 2011-12-07 | 中华映管股份有限公司 | Planar light source |
-
2004
- 2004-04-15 CN CN 200410033863 patent/CN1684221A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026081B (en) * | 2006-02-24 | 2011-12-07 | 中华映管股份有限公司 | Planar light source |
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