CN1585076A - Cold cathode planar light - Google Patents

Cold cathode planar light Download PDF

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Publication number
CN1585076A
CN1585076A CN 03153589 CN03153589A CN1585076A CN 1585076 A CN1585076 A CN 1585076A CN 03153589 CN03153589 CN 03153589 CN 03153589 A CN03153589 A CN 03153589A CN 1585076 A CN1585076 A CN 1585076A
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cold
those
cathode plane
plane lamp
lamp according
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CN1319107C (en
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许宏彬
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AU Optronics Corp
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AU Optronics Corp
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Abstract

The panel lamp is composed of the primary base material, multiple electrode groups secondary base material, multiple obstructed walls, the fluorphor and the discharge gas. The electrode group locates on the primary base material, the secondary base material locates on the primary base plate. The obstructed walls are located between the primary and secondary base plate to form multiple sealed cavities with a group of electrode, fluorophor and the discharge gas installed inside. The obstructed wall prevents the interference of the electrolyte generated by the group of electrode. The fluorophor coated on the wall of the obstructed wall improves the effect of luminate and the homogeneity.

Description

The cold-cathode plane lamp
Technical field
The present invention relates to the cold-cathode plane lamp in the light fixture of a kind of basic electrical component field, particularly relate to a kind of electricity slurry group that each electrode group can be produced and be separated, make its interdischarge interval can the phase mutual interference the cold-cathode plane lamp.
Background technology
Along with industry is flourishing day by day, digitization tools such as mobile phone, digital camera, digital camera, mobile computer, desktop PC develop towards direction more convenient, multi-functional and attractive in appearance invariably.Yet the display screen of mobile phone, digital camera, digital camera, mobile computer, desktop PC 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 camera, mobile computer and the desktop PC 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 lightmodule) so that light source to be provided, and then reach the function of demonstration.
Because the cold-cathode plane light fixture has good illumination efficiency and uniformity, and large-area area source can be provided, so the cold-cathode plane lamp extensively is applied on the backlight even other application of display panels.The cold-cathode plane lamp is a kind of electricity slurry luminescence component, it mainly is to utilize to impose a high voltage differential between the electrode group, blunt gas between negative electrode in the gaseous discharge cavity and the anode is excited into gas excite state molecule, ion and the electronics of high energy, and gas excite state molecule, ion and the electronics of these high energy is so-called electricity slurry.Afterwards, the excite state atom that is excited in the electricity slurry can discharge energy to radiate ultraviolet mode, and the ultraviolet ray of being radiated can further excite the fluorophor in the cold-cathode plane lamp, to send visible light.
Seeing also shown in Figure 1ly, is the structural representation of existing known cold-cathode plane lamp.Existing known cold-cathode plane lamp 100 is made of one first base material 110, one second base material 120, an edge strip 130, a plurality of electrode group 140 (showing three groups among this figure), a fluorophor 150 and a discharge gas 160.Wherein, edge strip 130 is to be disposed between first base material 110 and second base material 120, and is connected with the edge of first base material 110 and second base material 120, to constitute an airtight cavity 170.In addition, also can between two plate-like substrate, add a plurality of separation materials (spacer) (not shown), in order to the structural strength of the middle section of strengthening cold-cathode plane lamp 100, make cold-cathode plane lamp 100 can bear extraneous atmospheric pressure and form the required discharge space of gas discharge.
Please continue to consult shown in Figure 1, electrode group 140 is made of an anode 140a and a negative electrode 140b.Anode 140a and negative electrode 140b are generally strip shaped electric poles, and are that configured in parallel is on first base material 110.Usually can cover one dielectric layer 180 on the electrode group 140, can not damage because of ionic bombardment with guard electrode group 140.In addition, inject discharge gas 160 in the airtight cavity 170, this discharge gas 160 is generally xenon (Xe), neon (Ne), argon gas (Ar) or other blunt gas gas.In addition, fluorophor 150 is configured on the inwall of airtight cavity 170, as on the surface of second base material 120 and on the surface of dielectric layer 180.
Lighting in the process of cold-cathode plane lamp, mainly be by between two electrodes of electrode group 140, imposing a high voltage differential, the blunt gas between negative electrode and the anode in the gaseous discharge cavity 170 being excited into the gas of electricity slurry attitude.Afterwards, the excite state atom that is excited in the electricity slurry can discharge energy to radiate ultraviolet mode, and the ultraviolet ray of being radiated can further excite the fluorophor 150 of airtight cavity 170 inwalls, to produce visible light.Yet, the electrode that has each known electrode group now is to be in the common discharge space (being that discharge gas circulates between each electrode group), when the luminous situation of controlling each electrode group 140 in desire is respectively carried out the so-called stage luminous (Blink), part electricity slurry group can vacillate to luminous zone not and the phase mutual interference, and the luminous situation of each electrode group 140 of control that can't be correct.
This shows that above-mentioned existing cold-cathode plane lamp still has many defectives, and demands urgently further being improved.In order to solve the problem that the cold-cathode plane lamp exists, 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 plane lamp exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of cold-cathode plane lamp of new structure, can improve general existing cold-cathode plane lamp, 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
Main purpose of the present invention is, overcome the defective that above-mentioned existing cold-cathode plane lamp exists, and provide a kind of cold-cathode plane lamp of new structure, technical problem underlying to be solved is to make its configuration by a plurality of barrier ribs, the electricity slurry group that each electrode group can be produced is separated, make it can the phase mutual interference at interdischarge interval, and then can promote the luminous efficiency and the uniformity of cold-cathode plane lamp by this barrier rib increases the spreading area of fluorophor, thereby have more practicality, and have the value on the industry.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technical scheme to realize.According to a kind of cold-cathode plane lamp that the present invention proposes, it comprises: one first base material; The plurality of electrodes group, those electrode assembly place on this first base material, and each those electrode group has an anode and a negative electrode; One second base material is disposed at the top of this first plate-like substrate; A plurality of barrier ribs are disposed between this first substrate and this second substrate, so that constitute a plurality of airtight cavitys between this first substrate and this second substrate, wherein those electrode groups are to correspond respectively to those airtight cavitys by those barrier ribs; One fluorophor is disposed at the inwall of those airtight cavitys; And a discharge gas, be disposed in those airtight cavitys.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
Aforesaid cold-cathode plane lamp, wherein said those barrier ribs are strip, and its width of part of each those barrier rib and this first substrate contacts is greater than the width of the part of each those barrier rib and this second substrate contacts.
Aforesaid cold-cathode plane lamp, the cross section of wherein said each those barrier rib are triangle.
Aforesaid cold-cathode plane lamp, the cross section of wherein said each those barrier rib are trapezoidal.
Aforesaid cold-cathode plane lamp, the material of wherein said those barrier ribs are dielectric material.
Aforesaid cold-cathode plane lamp, this anode of wherein said those electrode groups is mutual serial connection.
Aforesaid cold-cathode plane lamp, this negative electrode of wherein said those electrode groups is mutual serial connection.
Aforesaid cold-cathode plane lamp, this negative electrode of wherein said those electrode groups is mutual serial connection.
Aforesaid cold-cathode plane lamp, wherein said those electrode groups are that the order with anode, negative electrode, anode, negative electrode is arranged on this first base material in regular turn.
Aforesaid cold-cathode plane lamp, wherein said those electrode groups are that the order with anode, negative electrode, negative electrode, anode is arranged on this first base material in regular turn.
Aforesaid cold-cathode plane lamp, it more comprises a dielectric layer, is disposed between those electrode groups and this fluorophor of part.
Aforesaid cold-cathode plane lamp, wherein said discharge gas are a blunt gas gas.
Aforesaid cold-cathode plane lamp, wherein said blunt gas gas comprises the group that the combination of xenon, neon, argon gas and these gases is formed.
Aforesaid cold-cathode plane lamp, the material of wherein said those electrode groups are metal.
Aforesaid cold-cathode plane lamp, wherein said metal material comprise silver, copper and chromium-copper evanohm one of them.
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 plane lamp, mainly is to be made of one first base material, a plurality of electrode group, one second base material, a plurality of barrier rib, a fluorophor and a discharge gas.The electrode assembly places on first base material, and the electrode group comprises an anode and a negative electrode.Second base material is disposed at the top of first plate-like substrate.Barrier rib is disposed between first substrate and second substrate, make to win by the obstruct of barrier rib to constitute a plurality of airtight cavitys between the substrate and second substrate, and each electrode group is to correspond respectively to these airtight cavitys.Fluorophor is disposed at the inwall of these airtight cavitys, and discharge gas is disposed in these airtight cavitys.
According to preferred embodiment of the present invention, wherein barrier rib is a list structure, and its width of the part of the barrier rib and first substrate contacts is greater than the width of the part of the barrier rib and second substrate contacts, if for example be triangle or trapezoidal with the shape of this barrier rib of profile view.In addition, the material of this barrier rib for example is a dielectric material.
According to preferred embodiment of the present invention, the anode in each electrode group is to be connected in series mutually, so that identical voltage to be provided.In addition, the negative electrode in each electrode group also can be connected in series mutually, so that identical voltage to be provided.In addition, the electrode group for example is arranged on first base material in regular turn with the order of anode, negative electrode, anode, negative electrode or anode, negative electrode, negative electrode, anode.
According to preferred embodiment of the present invention, more dispose a dielectric layer between electrode group and the part fluorophor (promptly being adjacent to the fluorophor at the first substrate place), can not damage in order to protect each electrode in these electrode groups because of ionic bombardment.
According to preferred embodiment of the present invention, the discharge gas that is injected in the airtight cavity for example is xenon (Xe), neon (Ne), argon gas passivity gas or its mists such as (Ar), and the material of the anode of electrode group and negative electrode for example is metals such as silver, copper or chromium-copper evanohm.
The present invention utilizes a plurality of barrier ribs (barrierrib) to be disposed between the two substrates, and each electrode group is disposed at respectively in the airtight cavity, the electricity slurry group that each electrode group can be produced by this barrier rib is separated, make it when whether desire control individual electrode group is lighted, electricity slurry group can not dissociate and produce the phenomenon of interference (cross-talk) to luminous zone not, and then can increase the spreading area of fluorophor, and can promote the luminous efficiency and the uniformity of cold-cathode plane lamp by this barrier rib.
By technique scheme, cold-cathode plane lamp of the present invention has following advantage at least:
1, by the configuration of barrier rib, the electricity slurry group that each electrode group can be produced is separated, make it when whether desire control individual electrode group is lighted, electricity slurry group can not dissociate and produce the phenomenon of interference to luminous zone not, and then can promote the luminous efficiency and the uniformity of cold-cathode plane lamp.
2, the present invention is except the electricity slurry group that each electrode group is produced with this barrier rib is separated, and also has the function of support simultaneously, and can strengthen the structural strength of the middle section of cold-cathode plane lamp, and can replace in the existing known product separation material and the configuration of edge strip.
In sum, the cold-cathode plane lamp of special construction of the present invention mainly is made of one first base material, a plurality of electrode group, one second base material, a plurality of barrier rib, a fluorophor and a discharge gas.The electrode assembly places on first base material, and second base material is disposed at the top of first plate-like substrate.Barrier rib is disposed between first substrate and second substrate constituting a plurality of airtight cavitys, and each electrode group is to lay respectively in these airtight cavitys.Fluorophor is disposed at the inwall of these airtight cavitys, and discharge gas is disposed in these airtight cavitys.It is by the configuration of this barrier rib, and the electricity slurry group that each electrode group can be produced is separated and avoids the phase mutual interference; Configuration by a plurality of barrier ribs, the electricity slurry group that each electrode group can be produced is separated, make it can the phase mutual interference, and then can promote the luminous efficiency and the uniformity of cold-cathode plane lamp by this barrier rib increases the spreading area of fluorophor at interdischarge interval.It has above-mentioned plurality of advantages and practical value, and not seeing in like product has the similar structures design to publish or use, no matter structurally or bigger improvement all arranged on the function, have technically than much progress, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, and having the value on the industry, really is a new and innovative, 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.
Description of drawings
Fig. 1 is the structural representation that has known cold-cathode plane lamp now.
Fig. 2 is the structural representation according to the cold-cathode plane lamp of a preferred embodiment of the present invention.
Fig. 3 A-Fig. 3 B is the arrangement mode schematic diagram according to the electrode of a preferred embodiment of the present invention.
Fig. 4 A-Fig. 4 B is the structural representation according to the barrier rib of another preferred embodiment of the present invention.
100: 110: the first base materials of cold-cathode plane lamp
Base material 130 in 120: the second: edge strip
140: electrode group 140a: anode
140b: negative electrode 150: fluorophor
160: discharge gas 170: airtight cavity
180: dielectric layer 200: the cold-cathode plane lamp
Base material 220 in 210: the first: the electrode group
220a: anode 220b: negative electrode
Base material 240 in 230: the second: barrier layer
250: fluorophor 260: discharge gas
270: airtight cavity 280: dielectric layer
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of cold-cathode plane lamp, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 2ly, is the structural representation according to the cold-cathode plane lamp of a preferred embodiment of the present invention.The cold-cathode plane lamp 200 of preferred embodiment of the present invention is made of one first base material 210, a plurality of electrode group 220 (showing three groups among this figure), one second base material 230, a plurality of barrier rib 240, a fluorophor 250 and a discharge gas 260.Wherein:
This electrode group 220 is disposed on first base material 210, and electrode group 220 is made of an anode 220a and a negative electrode 220b, and these electrodes are the strip shaped electric poles for being parallel to each other, and the material of these electrodes for example is metals such as silver, copper or chromium-copper evanohm.
This second base material 230 sees also shown in Figure 2ly equally, and it is disposed at the top of first plate-like substrate 210, and this first plate-like substrate 210 and second base material 230 for example are transparent tabular substrates.
This barrier rib 240, be disposed between first substrate 210 and second substrate 230, make to win by the obstruct of this barrier rib 240 to constitute a plurality of airtight cavitys 270 between the substrate 210 and second substrate 230, above-mentioned electrode group 220 then is to correspond respectively to these airtight cavitys 270.
This fluorophor 250 is disposed at the inwall of these airtight cavitys 270, and on the surface as first substrate 210 and second base material 120, and discharge gas 260 flows in these airtight cavitys 270.
In addition, more can further dispose a dielectric layer 280 between electrode group 220 and the part fluorophor 150 (promptly being adjacent to the fluorophor at first substrate, 210 places), can not damage because of ionic bombardment in order to protect each electrode in these electrode groups 220.
In addition, the material of above-mentioned barrier rib 240 also can adopt dielectric material, is run through to avoid barrier rib 240 to be subjected to ionic bombardment.
Lighting in the process of cold-cathode plane lamp 200, mainly be by between two electrodes of electrode group 220, imposing a high voltage differential, the discharge gas 260 between negative electrode and the anode in the airtight cavity 270 being excited into the formed electricity slurry of gas excite state molecule, ion and the electronics attitude gas of high energy.Afterwards, the excite state atom that is excited in the electricity slurry can discharge energy to radiate ultraviolet mode, and the ultraviolet ray of being radiated can further excite the fluorophor 250 of airtight cavity 270 inwalls, to produce visible light.It should be noted that, owing to each electrode group 220 is to separate each other by barrier rib 240, so the electricity slurry group that produced of each electrode group 220 can be separated by barrier rib 240 and carry out luminous at separately light-emitting zone, electricity slurry group so promptly can not take place vacillate and cause the situation of phase mutual interference to take place to luminous zone not, so can further promote the luminous efficiency and the uniformity thereof of cold-cathode plane lamp 200.
Seeing also shown in Fig. 3 A-Fig. 3 B, is the arrangement mode schematic diagram according to the electrode of a preferred embodiment of the present invention.At first, see also shown in Fig. 3 A, each above-mentioned electrode group 220 for example is that the order with anode 220a, negative electrode 220b, anode 220a, negative electrode 220b is arranged on first base material 210 in regular turn, and the mode of this arrangement is the both sides that different electrodes are disposed at barrier rib 240.Then, see also shown in Fig. 3 B, each above-mentioned electrode group 220 can also anode 220a, negative electrode 220b, the order of negative electrode 220b, anode 220a is arranged on first base material 210 in regular turn, and the mode of this arrangement is the both sides that identical electrode are disposed at barrier rib 240.
It should be noted that, when its voltage of electrode of barrier rib 240 both sides be coordination to the time (when being identical electrodes) as Fig. 3 B, it can avoid the situation of barrier rib 240 (being dielectric medium) collapse to take place, and can be further with the electrode of barrier rib 240 (being dielectric medium) both sides more near barrier rib 240 configurations, and then can increase discharge space.
In addition, the arbitrary identical electrodes in above-mentioned each electrode group 220 is to be connected in series (not shown) mutually, in order to identical voltage to be provided.For example, the anode 220a in each electrode group 220 can be connected in series mutually, and certainly, the negative electrode 220b in each electrode group 220 also can be connected in series mutually.In addition, the exit of its wire rod of the electrode in each electrode group 220 (being anode 220a and negative electrode 220b) can be positioned at one side (not shown), and so drive circuit then need not be coupled to the two ends of plane lamp.
Seeing also shown in Fig. 4 A-Fig. 4 B, is the structural representation according to the barrier rib of another preferred embodiment of the present invention.The width of the part that its width of part that above-mentioned barrier rib 240 contacts with first substrate 210 contacts with second substrate 230 greater than barrier rib 240, and be a up-narrow and down-wide structural design, if the shape with this barrier rib 240 of section sight for example is triangle (shown in Fig. 4 A) or trapezoidal (shown in Fig. 4 B), reduce the obstruct of the light output of second base material 230 by this, and then can obtain preferable optical 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 technology contents that can utilize above-mentioned announcement is made a little change or is 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 (15)

1, a kind of cold-cathode plane lamp is characterized in that it comprises:
One first base material;
The plurality of electrodes group, those electrode assembly place on this first base material, and each those electrode group has an anode and a negative electrode;
One second base material is disposed at the top of this first plate-like substrate;
A plurality of barrier ribs are disposed between this first substrate and this second substrate, so that constitute a plurality of airtight cavitys between this first substrate and this second substrate, wherein those electrode groups are to correspond respectively to those airtight cavitys by those barrier ribs;
One fluorophor is disposed at the inwall of those airtight cavitys; And
One discharge gas is disposed in those airtight cavitys.
2, cold-cathode plane lamp according to claim 1, it is characterized in that wherein said those barrier ribs are strip, and its width of part of each those barrier rib and this first substrate contacts is greater than the width of the part of each those barrier rib and this second substrate contacts.
3, cold-cathode plane lamp according to claim 2, the cross section that it is characterized in that wherein said each those barrier rib is a triangle.
4, cold-cathode plane lamp according to claim 2, the cross section that it is characterized in that wherein said each those barrier rib is trapezoidal.
5, cold-cathode plane lamp according to claim 1, the material that it is characterized in that wherein said those barrier ribs is a dielectric material.
6, cold-cathode plane lamp according to claim 1, this anode that it is characterized in that wherein said those electrode groups is mutual serial connection.
7, cold-cathode plane lamp according to claim 6, this negative electrode that it is characterized in that wherein said those electrode groups is mutual serial connection.
8, cold-cathode plane lamp according to claim 1, this negative electrode that it is characterized in that wherein said those electrode groups is mutual serial connection.
9, cold-cathode plane lamp according to claim 1 is characterized in that wherein said those electrode groups are that order with anode, negative electrode, anode, negative electrode is arranged on this first base material in regular turn.
10, cold-cathode plane lamp according to claim 1 is characterized in that wherein said those electrode groups are that order with anode, negative electrode, negative electrode, anode is arranged on this first base material in regular turn.
11, cold-cathode plane lamp according to claim 1 is characterized in that it more comprises a dielectric layer, is disposed between those electrode groups and this fluorophor of part.
12, cold-cathode plane lamp according to claim 1 is characterized in that wherein said discharge gas is a blunt gas gas.
13, cold-cathode plane lamp according to claim 12 is characterized in that wherein said blunt gas gas comprises the group that the combination of xenon, neon, argon gas and these gases is formed.
14, cold-cathode plane lamp according to claim 1, the material that it is characterized in that wherein said those electrode groups is a metal.
15, cold-cathode plane lamp according to claim 14, it is characterized in that wherein said metal material comprise silver, copper and chromium-copper evanohm one of them.
CNB031535895A 2003-08-18 2003-08-18 Cold cathode planar light Expired - Fee Related CN1319107C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB031535895A CN1319107C (en) 2003-08-18 2003-08-18 Cold cathode planar light

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Application Number Priority Date Filing Date Title
CNB031535895A CN1319107C (en) 2003-08-18 2003-08-18 Cold cathode planar light

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CN1585076A true CN1585076A (en) 2005-02-23
CN1319107C CN1319107C (en) 2007-05-30

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CNB031535895A Expired - Fee Related CN1319107C (en) 2003-08-18 2003-08-18 Cold cathode planar light

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188974A (en) * 1984-03-07 1985-09-26 三洋電機株式会社 Liquid crystal display unit
CA1292768C (en) * 1987-03-20 1991-12-03 Shunichi Kishimoto Flat fluorescent lamp for liquid crystal display
KR20030062141A (en) * 2002-01-16 2003-07-23 삼성전자주식회사 Flat Fluorescent Lamp having a divided discharge space

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