CN102867730A - Plane light-emitting device, backlight source and liquid crystal display device - Google Patents
Plane light-emitting device, backlight source and liquid crystal display device Download PDFInfo
- Publication number
- CN102867730A CN102867730A CN2012102793723A CN201210279372A CN102867730A CN 102867730 A CN102867730 A CN 102867730A CN 2012102793723 A CN2012102793723 A CN 2012102793723A CN 201210279372 A CN201210279372 A CN 201210279372A CN 102867730 A CN102867730 A CN 102867730A
- Authority
- CN
- China
- Prior art keywords
- light
- layer
- emitting device
- substrate
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 33
- 239000011261 inert gas Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 70
- 239000000758 substrate Substances 0.000 claims description 68
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 229910052724 xenon Inorganic materials 0.000 claims description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 6
- RHFWLQOLQAFLGT-UHFFFAOYSA-N neon xenon Chemical compound [Ne].[Xe] RHFWLQOLQAFLGT-UHFFFAOYSA-N 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- JXBFBSYDINUVRE-UHFFFAOYSA-N [Ne].[Ar] Chemical compound [Ne].[Ar] JXBFBSYDINUVRE-UHFFFAOYSA-N 0.000 claims description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- 230000009471 action Effects 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract 3
- 238000009833 condensation Methods 0.000 abstract 3
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052754 neon Inorganic materials 0.000 description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910000597 tin-copper alloy Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the field of liquid crystal display, in particular to a plane light-emitting device, a backlight source and a liquid crystal display device, which are used for providing high-uniformity plane light. The invention discloses the plane light-emitting device, which comprises a first base plate, a second base plate, a first electrode, a second electrode, two outer leads, inert gas and discharge gas, wherein the first base plate and the second base plate are in butt joint to form a sealed chamber; the first electrode and the second electrode are arranged at two ends of the sealed chamber; the two outer leads are respectively connected with the first electrode and the second electrode; the inert gas and the discharge gas are filled in the sealed chamber; the first base plate comprises a first glass base plate, a first reflecting layer which is positioned on the inner surface of the first glass base plate, a light condensation layer which is positioned on the first reflecting layer, and a fluorescent layer which is positioned on the light condensation layer; and the second base plate comprises a second glass base plate, and a second reflecting layer which is positioned on the inner surface of the second glass base plate. Under the action of the first reflecting layer, the second reflecting layer and the light condensation layer, the high-uniformity plane light is obtained.
Description
Technical Field
The invention relates to the field of liquid crystal display, in particular to a planar light-emitting device, a backlight source and a liquid crystal display device.
Background
At present, Cold Cathode Fluorescent Lamps (CCFLs) have the advantages of simple structure, long service life, easy processing into various shapes, and the like, and are widely applied to the field of liquid crystal display.
As shown in fig. 1, a conventional cold cathode fluorescent lamp generally includes: the sealing chamber is formed by butt-sealing a first glass substrate 100 and a second glass substrate 101, a first fluorescent layer 110 coated on the inner side of the first glass substrate 100, a second fluorescent layer 111 coated on the inner side of the second glass substrate 101, a first electrode 120 and a second electrode 121 disposed at positions close to the first fluorescent layer 110 and the second fluorescent layer 111 at both ends of the sealing chamber, and a neon-argon mixed gas and mercury vapor 130 filled in the sealing chamber. A high-voltage high-frequency electric field is applied to the first electrode 120 and the second electrode 121, electrons in the cathode convert potential energy into kinetic energy under the action of the electric field and are emitted outwards, the electrons collide with mercury atoms after being emitted, the energy obtained by the mercury atoms is transferred to a higher energy level, the mercury atoms return to a stable state (a low energy level) due to the unstable excitation state, energy is released to generate ultraviolet light, and the ultraviolet light is absorbed by the fluorescent layer to generate visible light.
However, the visible light emitted from the conventional cold cathode fluorescent lamp cannot be emitted in one direction, so that the intensity of the emitted light is greatly different, that is, the light emitted from the conventional cold cathode fluorescent lamp is not uniform, and if the backlight of the liquid crystal display device is to obtain a plane light with uniform brightness, the visible light emitted from the cold cathode fluorescent lamp needs to be converted by using a light guide plate, an emission sheet and the like, so that the brightness of the backlight and the utilization rate of the light are reduced.
Disclosure of Invention
The invention aims to provide a planar light emitting device for providing planar light with good uniformity.
The present invention provides a planar light emitting device comprising: the plasma display panel comprises a first substrate, a second substrate, a first electrode, a second electrode, two outer leads, inert gas and discharge gas, wherein the first substrate and the second substrate are butted to form a sealed cavity; wherein,
the first substrate includes: the display panel comprises a first glass substrate, a first reflecting layer, a light-gathering layer and a fluorescent layer, wherein the first reflecting layer is positioned on the inner surface of the first glass substrate;
the second substrate includes: the second glass substrate and a second reflecting layer located on the inner surface of the second glass substrate.
Preferably, in the above planar light emitting device, the inert gas is argon or a mixed gas of neon and argon.
Preferably, in the above planar light-emitting device, the discharge gas is a mercury vapor, xenon gas, or a mixed gas of neon and xenon.
Preferably, in the above cold plane light emitting device, the inert gas is argon, and the discharge gas is neon and xenon.
Preferably, in the above planar light emitting device, the first electrode and the second electrode are strip electrodes made of nickel-copper alloy.
Preferably, in the above planar light emitting device, the material of the protective layer is polyacrylic acid.
Preferably, in the above planar light emitting device, the material of the first reflective layer is titanium dioxide.
Preferably, in the above planar light emitting device, the second reflective layer is made of nickel.
Preferably, the planar light-emitting device further includes a protective layer located between the first glass substrate and the first reflective layer.
The invention also provides a backlight source which comprises the planar light-emitting device with the technical characteristics.
The invention also provides a liquid crystal display device which comprises the backlight source with the technical characteristics.
According to the technical scheme, when a high-voltage high-frequency electric field is applied to the first electrode and the second electrode, emitted electrons collide with discharge gas atoms to cause the discharge gas atoms to generate energy transition to emit ultraviolet light, a part of the ultraviolet light is absorbed by fluorescent powder and converted into visible light, and the visible light is converged by the light-condensing layer; and the other part of the light is reflected to the fluorescent layer through the second reflecting layer, and the process is repeated, and finally the light is converted into visible light which is uniformly emitted from the first glass substrate. Therefore, the planar light-emitting device provided by the invention reduces the scattering of ultraviolet light and visible light by utilizing the first reflecting layer and the second reflecting layer, and simultaneously leads the light to be converged uniformly and emitted from the first glass substrate under the action of the light-condensing layer. Therefore, compared with the prior art, the planar light-emitting device provided by the invention can provide planar light with good uniformity.
Drawings
Fig. 1 is a cross-sectional view of a prior art cold cathode lamp;
fig. 2 is a sectional view of a planar light-emitting device according to an embodiment of the present invention.
Detailed Description
In the conventional cold cathode fluorescent lamp, mercury atoms return to a stable state from a high energy level in an excited state, and energy is released to generate ultraviolet light, the ultraviolet light is absorbed by the first fluorescent layer 110 and the second fluorescent layer 111 and converted into visible light, and the visible light is emitted from the first glass substrate 100 and the second glass substrate 101 in two directions, so that the luminous intensity of the cold cathode fluorescent lamp is reduced.
In view of the above, the present invention provides a planar light emitting device, comprising: the plasma display panel comprises a first substrate, a second substrate, a first electrode, a second electrode, two outer leads, inert gas and discharge gas, wherein the first substrate and the second substrate are butted to form a sealed cavity; wherein,
the first substrate includes: the display panel comprises a first glass substrate, a first reflecting layer, a light-gathering layer and a fluorescent layer, wherein the first reflecting layer is positioned on the inner surface of the first glass substrate;
the second substrate includes: the second glass substrate and a second reflecting layer located on the inner surface of the second glass substrate.
When a high-voltage high-frequency electric field is applied to the first electrode and the second electrode, the emitted electrons collide with the discharge gas atoms, so that the discharge gas atoms generate energy transition to emit ultraviolet light, a part of the ultraviolet light is absorbed by fluorescent powder and converted into visible light, the visible light is converged by the light-gathering layer, and in addition, the first reflecting layer can also reduce the scattering of the visible light and emit the visible light from the first glass substrate; the other part of the light is reflected to the fluorescent layer through the second reflecting layer, and the light is finally converted into visible light to be uniformly emitted from the first glass substrate after the processes are repeated.
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
Fig. 2 is a cross-sectional view of a planar light-emitting device according to an embodiment of the present invention. The planar light-emitting device includes: a first substrate and a second substrate which are butted to form a sealed chamber, a first electrode 260 and a second electrode 261 which are arranged at two ends of the sealed chamber, two external leads (not shown in the figure) which are respectively connected with the first electrode 260 and the second electrode 261, and a mixed gas 270 of inert gas and discharge gas which is filled in the sealed chamber; wherein,
the first substrate includes: a first glass substrate 200, a first reflective layer 220 on an inner surface of the first glass substrate 200, a light-condensing layer 230 on the first reflective layer 220, and a fluorescent layer 240 on the light-condensing layer 230;
the second substrate includes: a second glass substrate 201 and a second reflective layer 250 on an inner surface of the second glass substrate 201. In particular, the amount of the solvent to be used,
in a sealed chamber formed by butting the first substrate and the second substrate, a first reflecting layer 220, a light condensing layer 230 and a fluorescent layer 240 are sequentially arranged on the first glass substrate 200; wherein,
the fluorescent layer 240 serves to absorb ultraviolet light and convert it into visible light.
The condensing layer 230 serves to condense the visible light generated from the fluorescent layer, thereby improving the uniformity of light.
The first reflective layer 220, also referred to as a low reflective layer, is made of titanium dioxide (TiO)2) Formed of a material for reducing the catadioptric effect of incident light and reducing the loss of lightLosing; in addition, scattering of visible light can be reduced; thereby improving the brightness and uniformity of the planar light-emitting device.
Preferably, a protective layer 210 made of polyacrylic acid is disposed between the first glass substrate 200 and the first reflective layer 220 for protecting the first reflective layer 220 and improving adhesion between the coatings.
A second reflective layer 260 is disposed on the second glass substrate 201, and the second reflective layer 260 is a nickel reflective layer and is formed on the second glass substrate 201 by an electroless nickel plating process.
The first electrode 260 and the second electrode 261 are made of nickel-copper alloy, and have good conductivity and oxidation resistance. The first electrode 260 and the second electrode 261 are connected with an outer lead, the surface of the outer lead is coated with tin-copper alloy solder with oxidation resistance and low melting point, and the outer lead does not contain harmful metal elements such as lead and the like, so that the environment-friendly concept is met.
A mixed gas 270 including an inert gas and a discharge gas is filled in the sealed chamber formed by the first substrate and the second substrate, and preferably, in the mixed gas 270, the inert gas is an argon or neon-argon mixed gas; the discharge gas is mercury vapor, xenon or neon-xenon mixed gas. Preferably, the inert gas is argon, and the discharge gas is neon and xenon.
It should be noted that, in this embodiment, the first substrate and the second substrate are planar structures, and are butted by the sealant to form a sealed cavity; but not limited thereto, one of the first substrate and the second substrate may be a semi-closed structure with bosses at the peripheral edge, and the other substrate is matched with the semi-closed structure to form a sealed cavity. In addition, the outline of the planar light emitting device provided in this embodiment may be a rectangular parallelepiped structure, or may be other outlines, only the substrate on which the light emitting surface is located needs to be ensured to be a planar structure, and preferably, the outline of the planar light emitting device is a rectangular parallelepiped structure, so that the planar light emitting device is convenient to produce and manufacture, and is also convenient to mount on a backlight.
The planar light-emitting device of the above structure emits light as follows:
applying a high-voltage high-frequency electric field to the first electrode 260 and the second electrode 261 of the planar light emitting device, converting the electric potential energy of electrons in the cathode into kinetic energy by the action of the electric field, and emitting the kinetic energy outwards, wherein the electrons collide with the neon xenon gas atoms after being emitted, the neon xenon gas atoms obtain energy and jump to a higher energy level, and because the excitation state is unstable, the neon xenon gas atoms return to a stable state, energy is released from a high energy level to a low energy level to generate ultraviolet light, a part of the ultraviolet light is absorbed and converted by the fluorescent layer 240 to form visible light, the light condensing layer 230 condenses the visible light generated by the fluorescent layer 240, and in addition, the first reflective layer 220 also reduces the scattering of the visible light, so that the visible light is emitted from the first glass substrate 200; the other part of the ultraviolet light is reflected to the fluorescent layer 240 through the second reflective layer 260, and the above processes are repeated, so that the visible light is emitted from the first glass substrate 200 in a concentrated manner, thereby reducing the loss of the ultraviolet light and the visible light, and simultaneously, the light is emitted uniformly by using the light-condensing layer, so that the light-emitting uniformity of the planar light-emitting device is improved.
The invention also provides a backlight source which comprises the planar light-emitting device with the technical characteristics. Because the light emitted by the plane light-emitting device is a plane light source, optical devices such as a light guide plate, a diffusion sheet and the like are not needed in the backlight source, and the production cost of the backlight source is saved.
The invention also provides a liquid crystal display device which comprises the backlight source with the technical characteristics. The liquid crystal display device may be: the liquid crystal display device comprises any product or component with a display function, such as a liquid crystal panel, electronic paper, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like.
In summary, in the planar light emitting device provided by the present invention, ultraviolet light generated by the discharge gas atoms when the discharge gas atoms are reduced from the high energy level to the low energy level is absorbed and converted by the fluorescent layer to form visible light, the light condensing layer condenses the visible light generated by the fluorescent layer, and in addition, the first reflective layer also reduces the scattering of the visible light, so that the visible light is emitted from the first glass substrate; and the other part of the ultraviolet light is reflected to the fluorescent layer through the second reflecting layer, and the process is repeated, so that the visible light is intensively emitted from the first glass substrate, and the loss of the ultraviolet light and the visible light is reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A planar light emitting device, comprising:
the plasma display panel comprises a first substrate, a second substrate, a first electrode, a second electrode, two outer leads, inert gas and discharge gas, wherein the first substrate and the second substrate are butted to form a sealed cavity; wherein,
the first substrate includes: the display panel comprises a first glass substrate, a first reflecting layer, a light-gathering layer and a fluorescent layer, wherein the first reflecting layer is positioned on the inner surface of the first glass substrate;
the second substrate includes: the second glass substrate and a second reflecting layer located on the inner surface of the second glass substrate.
2. The planar lighting apparatus as claimed in claim 1, wherein said inert gas is argon or neon-argon mixture gas.
3. The planar lighting device as claimed in claim 1, wherein said discharge gas is a mixture of mercury vapor, xenon gas or neon-xenon gas.
4. The planar light-emitting device as claimed in claim 1, wherein the first and second electrodes are strip electrodes made of nickel-copper alloy.
5. The planar lighting device as claimed in claim 1, wherein the protective layer is made of polyacrylic acid.
6. The planar light-emitting device as claimed in claim 1, wherein the first reflective layer is made of titanium dioxide.
7. The planar light-emitting device as claimed in claim 1, wherein the second reflective layer is made of nickel.
8. A planar light emitting device as claimed in any one of claims 1 to 7, further comprising a protective layer between said first glass substrate and said first reflective layer.
9. A backlight comprising the planar light-emitting device according to any one of claims 1 to 8.
10. A liquid crystal display device comprising the backlight according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102793723A CN102867730A (en) | 2012-08-07 | 2012-08-07 | Plane light-emitting device, backlight source and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102793723A CN102867730A (en) | 2012-08-07 | 2012-08-07 | Plane light-emitting device, backlight source and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102867730A true CN102867730A (en) | 2013-01-09 |
Family
ID=47446516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102793723A Pending CN102867730A (en) | 2012-08-07 | 2012-08-07 | Plane light-emitting device, backlight source and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102867730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842917A (en) * | 2016-04-20 | 2016-08-10 | 乐视控股（北京）有限公司 | Composite light guide plate, manufacturing method thereof, backlight module, display equipment and light box |
| CN110289254A (en) * | 2019-06-27 | 2019-09-27 | 京东方科技集团股份有限公司 | It is micro-led and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107064U (en) * | 1990-07-21 | 1992-06-10 | 三星电管株式会社 | Flat-type cold cathode fluorescent lamp |
| US20070057612A1 (en) * | 2005-09-12 | 2007-03-15 | Au Optronics Corp. | Flourescent lamp and flat lamp |
| CN101047101A (en) * | 2006-03-30 | 2007-10-03 | 中华映管股份有限公司 | Planar light source device and forming method thereof |
| CN101517310A (en) * | 2006-09-28 | 2009-08-26 | 松下电器产业株式会社 | Illuminating device and display device |
-
2012
- 2012-08-07 CN CN2012102793723A patent/CN102867730A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107064U (en) * | 1990-07-21 | 1992-06-10 | 三星电管株式会社 | Flat-type cold cathode fluorescent lamp |
| US20070057612A1 (en) * | 2005-09-12 | 2007-03-15 | Au Optronics Corp. | Flourescent lamp and flat lamp |
| CN101047101A (en) * | 2006-03-30 | 2007-10-03 | 中华映管股份有限公司 | Planar light source device and forming method thereof |
| CN101517310A (en) * | 2006-09-28 | 2009-08-26 | 松下电器产业株式会社 | Illuminating device and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842917A (en) * | 2016-04-20 | 2016-08-10 | 乐视控股（北京）有限公司 | Composite light guide plate, manufacturing method thereof, backlight module, display equipment and light box |
| CN110289254A (en) * | 2019-06-27 | 2019-09-27 | 京东方科技集团股份有限公司 | It is micro-led and preparation method thereof |
| US11417797B2 (en) | 2019-06-27 | 2022-08-16 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Micro light emitting diode and manufacture method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6853124B1 (en) | Flat fluorescent lamp with specific electrode structuring | |
| US7969091B2 (en) | Field-emission apparatus of light source comprising a low pressure gas layer | |
| US20060246812A1 (en) | Flat luminescent lamp and method for manufacturing the same | |
| KR20050094197A (en) | Flat fluorescent lamp and method for manufacturing the same | |
| JP2007087900A (en) | Back light system | |
| US20070057619A1 (en) | Field emission luminescent device | |
| CN102867730A (en) | Plane light-emitting device, backlight source and liquid crystal display device | |
| TW201023404A (en) | Light emitting device, backlight using the device, liquid crystal display device, and illumination device | |
| JP2008060082A (en) | Flat field emitting illumination module | |
| TW512393B (en) | Planar fluorescent lamp | |
| JP2007012615A (en) | Cold cathode lamp module | |
| KR100929544B1 (en) | Surface light source device comprising an aluminum electrode and a method of manufacturing the same | |
| KR100764769B1 (en) | High efficiency field emission face light source device | |
| CN102074451B (en) | Discharging lamp | |
| JP2006024548A (en) | Cold cathode fluorescent lamp | |
| KR100392180B1 (en) | fluorescent lamp and the back light unit applying the same | |
| JP2007073254A (en) | External electrode discharge lamp | |
| CN201054344Y (en) | Reflective cold cathode lamp tube | |
| CN113217873A (en) | Light path structure of laser illumination | |
| JP2002033077A (en) | Cold cathode discharge tube and manufacturing method therefor | |
| JP2007305358A (en) | Flat surface fluorescent lamp, manufacturing method of same, and liquid crystal display device | |
| JP2005005186A (en) | Light source device | |
| KR20080008818A (en) | Lamp, method for manufacturing the same, backlight assembly and liquid crystal display | |
| JP2006294546A (en) | Cold cathode fluorescent lamp | |
| KR20100003860A (en) | Mercury free flat fluorescent lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130109 |