CN1204593C - Planar fluorescent lamp and its making process - Google Patents
Planar fluorescent lamp and its making process Download PDFInfo
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- CN1204593C CN1204593C CN 00106781 CN00106781A CN1204593C CN 1204593 C CN1204593 C CN 1204593C CN 00106781 CN00106781 CN 00106781 CN 00106781 A CN00106781 A CN 00106781A CN 1204593 C CN1204593 C CN 1204593C
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- sidewall
- florescent lamp
- flat florescent
- fluorescence coating
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Abstract
The present invention relates to a planar fluorescent lamp and a making method thereof. A glass substrate is arranged. Part of the glass substrate is removed and a lamp holder provided with a first panel, a side wall and gap supporters is formed, wherein the gap supporters are as high as the side wall; the side wall is positioned on the circumference of the first panel; the gap supporters are arranged in an area enclosed by the side wall. A second panel is provided; fluorescent layers are coated on the lamp holder and the second panel and cover the lamp holder and part of the surface of the second panel; the top ends of the gap supporters are exposed. Electrodes are arranged in the lamp holder and are positioned at two corresponding sides in the area of the side wall. The lamp holder is engaged with the second panel, the second panel is connected with the side wall and the gap supporters, and the fluorescent layers are positioned in a cavity.
Description
Technical field
The present invention relates to a kind of flat florescent lamp (Planar Fluorescent Lamp) and preparation method thereof, particularly relate to flat florescent lamp of a kind of backlight as the large-area liquid crystal display and preparation method thereof.
Background technology
LCD (Liquid Crystal Display, LCD) have that high image quality, volume are little, in light weight, advantage such as low voltage drive, low consumpting power and applied range, be widely used in medium and small portable television, mobile phone, shoot with video-corder consumer electronics or computer products such as projector, laptop, console display and projection TV, and (Cathode Ray Tube CRT) becomes the main flow of display to replace cathode ray tube gradually.Yet, LCD and plasma display system (Plasma DisplayPanel, PDP), self-lighting such as electroluminescent device, light-emitting diode type display unit and inequality, display panels itself can't be luminous, be to belong to be subjected to light type display unit, therefore must provide light source to throw light on by the outside and just can reach imaging results, so most display panels all is equipped with illuminating backlight (Back Light) overleaf.
The general employed backlight of LCD uses fluorescent lamp as lighting source mostly, and (Millimeter is mm) between 2.6 millimeters about 1.8 millimeters for the caliber of fluorescent lamp at present.The structure of fluorescent tube is at the glass tube two ends electrode to be housed, tube inner wall scribbles fluorescent material, also sealing in the fluorescent tube has mercury vapor (Mercury) and inert gas (Inert Gas) or only is inert gas (show the SID of association in disclosed paper of 1-3 day in December, 1999 according to the world, its title is " No-Mercury Flat Discharge Lampfor LCD Backlighting ").To electrode application voltage the time, can produce electronic impact mercury vapor and inert gas, make it transit to excite state.When mercury vapor and inert gas are got back to ground state by excite state, can emit ultraviolet light, produce visible light to excite the fluorescent material on the tube wall.
When the display area of LCD increases day by day, must use can send white light and even brightness planar light light source.Yet white fluorescent lamp is that line source is not an area source, and therefore the most direct mode is that several fluorescent tubes are contained in the display floater back side.Please refer to Fig. 1, what it illustrated is a kind of generalized section of existing direct-light-type backlight, wherein fluorescent lamp 100 is the back side that is installed in display panels 102 with parallel arrangement mode, reflecting plate (Reflector) 104 is positioned at fluorescent lamp 100 rears, 106 of diffuser plates (Diffuser) are configured between fluorescent lamp 100 and the display floater 102, to reach the effect of area source.
Another kind of line source being converted to the method for area source, is the end face that fluorescent tube is contained in light guide plate (Louver), reaches the effect of area source in edge-lit (Edge Light) mode.Please refer to Fig. 2, what it illustrated is a kind of generalized section of existing edge-lit formula backlight, fluorescent lamp 200 is located at the end face 202a of light guide plate 202, and the light that reflector 204 can send fluorescent lamp 200 is imported in the light guide plate 202 that acryl makes by end face 202a.The front of light guide plate 202 is provided with diffuser plate 206, and the back side and other end faces are covered with reflecting plate 208, and the light that enters in the light guide plate 202 is limited to by it.Light carries out repeatedly total reflection in light guide plate 202, make the whole light guide plate 202 luminous area sources that become, and diffuser plate 206 can make the brightness uniformity of light guide plate.
Yet direct-light-type backlight must use the diffuser plate could be with the brightness uniformity of backlight integral body, and when fluorescent lamp and display floater distance were too near, its profile can be apparent on the display panels, and influence shows image quality.And the distance between adjustment fluorescent tube and the display floater then can make the thickness of backlight increase, can't be with the LCD slimming.Generally speaking, the brightness uniformity of edge-lit formula backlight is than the height of direct-light-type backlight, but its light utilization ratio is relatively poor, so its brightness that can provide is lower.
Summary of the invention
The object of the present invention is to provide a kind of flat florescent lamp and preparation method thereof, in this kind area source structure, adopt the sandblast mode to form lamp socket, need not use glass edge strip and extra separation material, can simplify manufacturing process, reduce cost of manufacture with sidewall and clearance support.On same substrate, make sidewall and clearance support, can enlarge the manufacturing process permissible range, improve product percent of pass.With the integrated clearance support of lamp socket, can increase the rigidity (Rigidity) of lamp socket.When lamp socket is engaged the cavity that constitutes and vacuumizes with panel, but the clearance support support panel, and the spacing of control panel and lamp socket is kept its surface flatness.Moreover the tip size of clearance support is littler as the glass marble of separation material than existing, need not use diffuser plate to make and reach brightness uniformity.Use lamp socket and panel to constitute gas container, and apply fluorescence coating, and electrode is disposed in the cavity in its inner surface with cavity, can obtain whole of energy luminous, have high brightness and an even brightness area source.
The object of the present invention is achieved like this, and a kind of flat florescent lamp promptly is provided, and wherein comprises at least: one first panel has a first surface; One sidewall is disposed at this first surface, and is positioned at the periphery of this first panel; A plurality of clearance supports are disposed at this first surface, and are positioned at this sidewall institute area surrounded, and the height of each clearance support is identical with this sidewall, and the top end diameter of each this each clearance support is about 0.01 millimeter to 1 millimeter; One first fluorescence coating is configured on this first panel, this first surface of cover part, and expose the top of this each clearance support; One second panel has a second surface, and this second panel configuration and is connected with this sidewall and each clearance support on this first panel; One second fluorescence coating is configured on this second panel this second surface of cover part; One group of electrode is disposed between this first panel and this second panel, and lays respectively at relative both sides in this sidewall institute area surrounded; And one of them gas of the mist of mercury vapour and an inert gas and inert gas, be disposed at the cavity that this first panel, this sidewall and this second panel are surrounded, wherein this gas can produce ultraviolet light after being subjected to electron excitation.
The present invention also provides a kind of manufacture method of flat florescent lamp, wherein comprises the following steps: to provide a glass substrate at least; Remove this glass substrate of part and form one first panel, and form a upwardly extending sidewall at the periphery of this first panel, on this first panel, form a plurality of clearance supports simultaneously in this sidewall institute area surrounded, and each clearance support is identical with the height of this sidewall, wherein remove this glass substrate of part, form this first panel, this sidewall and this each clearance support, also be included on this glass substrate, formation has a sand resistance layer of limiting pattern, now is a mask with this sand resistance layer, and use the sandblast mode to remove this glass substrate of part, and form this first panel, this sidewall and this each clearance support; On this first panel, in this sidewall institute area surrounded, form one first fluorescence coating, cover part first panel, and expose the top of each clearance support; One group of electrode is configured on this first panel relative both sides in this sidewall institute area surrounded; One second panel is provided, and forms one second fluorescence coating on a surface of this second panel, the cover part should the surface; With this first panel and this second panel configured in parallel, part should be connected with this sidewall and each clearance support on the surface, and make this first fluorescence coating and this second fluorescence coating be arranged in the cavity of this first panel and this second panel formation; And one of them gas of the mist of a mercury vapor and inert gas and inert gas imported this cavity, wherein this gas can produce ultraviolet light after being subjected to electron excitation.
Furtherly, according to above-mentioned and other purpose of the present invention, the plane fluorescent lamp that is proposed comprises first panel, sidewall, clearance support, second panel, fluorescent layer, electrode and gas.In this kind structure, sidewall is the periphery that is positioned at first panel, and the clearance support that height is identical with sidewall then is to be distributed in the first panel upper side wall enclosing region.Second panel is connected with sidewall and clearance support respectively, forms cavity between first panel and second panel, and fluorescent layer then is to be positioned among the cavity, and covers the part surface of first panel and the second panel inboard.And electrode also is disposed in the cavity, and is positioned at relative both sides, side walls enclose zone, and the mist or the inert gas of mercury vapor and inert gas then are disposed in the cavity.
And, a kind of plane fluorescent lamp is proposed again according to above-mentioned and other purpose of the present invention, comprising integrated lamp socket, second panel, fluorescent layer, electrode and gas.Have integrated first panel, sidewall and clearance support in the lamp socket, sidewall is positioned at the periphery of first panel, and clearance support then is distributed in the first panel upper side wall enclosing region, and height is identical with sidewall.And second panel is connected with sidewall and clearance support, and second panel and lamp socket joint formation cavity, and fluorescent layer is positioned among the cavity, and covers respectively on first panel and second panel.Electrode also is to be configured among the cavity, and lays respectively at both sides relative in the side walls enclose zone, and the mist or the inert gas of mercury vapor and inert gas then are disposed in the cavity.
In addition, according to above-mentioned and other purpose of the present invention, the manufacture method of the plane fluorescent lamp that is proposed comprises: glass substrate at first is provided, removes the segment glass substrate again, formation has first panel, sidewall and clearance support and integrated lamp socket.Wherein clearance support is identical with the height of sidewall, and sidewall is positioned at the periphery of first panel, and the clearance support side is to be distributed in the sidewall institute area surrounded.Provide the second identical or different panel of the area and first panel then, and on the lamp socket and second panel, be coated with fluorescence coating respectively, cover the part surface of the lamp socket and second panel, and expose the top of clearance support.Again electrode is configured in the lamp socket, is located at both sides relative in the side walls enclose zone.Then lamp socket is engaged with second panel, second panel is connected with sidewall and clearance support, and make fluorescent layer be positioned at the cavity that lamp socket and second panel constitute, in the mist or inert gas importing cavity with mercury vapor and inert gas with glass cement.
Description of drawings
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is a kind of generalized section of existing direct-light-type backlight;
Fig. 2 is a kind of generalized section of existing edge-lit formula backlight;
Fig. 3 A to Fig. 3 E is according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, and it makes the generalized section of flow process;
Fig. 4 A and Fig. 4 B are according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, the wherein vertical view of lamp socket and stereogram;
Fig. 5 is according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, the wherein vertical view after the lamp socket configured electrodes.
Embodiment
Please refer to Fig. 3 A to Fig. 3 E, what it illustrated is according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, and it makes the generalized section of flow process.
As shown in Figure 3A, glass substrate 300 at first is provided, and formation has the sand resistance layer 304 that constitutes pattern on substrate surface 302, and the method that wherein forms sand resistance layer 304 for example is a screen painting (Screen Printing) etc., and the material of sand resistance layer 304 comprises paper, wire mark slurry etc.The thickness H of glass substrate 300 is about 2 millimeters to 5 millimeters, preferable thickness is about 3 millimeters, the material of glass substrate 300 comprises soda-lime glass (Soda-Lime Glass) etc., for example is Corning 0080 glass or Corning 7059 glass of being produced by Corning Incorporated.
Secondly, please refer to Fig. 3 B, to have the sand resistance layer 304 that constitutes pattern among Fig. 3 A is mask, remove segment glass substrate 300 and form the first panel 300a, and form sidewall 308 at the periphery of the first surface 306a of the first panel 300a, on first surface 306a, by forming many clearance supports (Spacer) 310 in 308 area surrounded of sidewall, then sand resistance layer 304 is divested simultaneously.The method that wherein remove segment glass substrate 300, forms the first panel 300a, sidewall 308 and clearance support 310 for example is to utilize sand resistance layer 302, use the sandblast mode to form, and sand resistance layer 304 has in order to form the required pattern of sidewall 308 and clearance support 310.
Shown in Fig. 3 B, constitute lamp socket 312 by the first panel 300a, sidewall 308 with clearance support 310, the thickness of lamp socket 312 is the thickness H of glass substrate 300 among Fig. 3 A, is about 2 millimeters to 5 millimeters, and preferable thickness is about 3 millimeters.The height h of clearance support 310 is identical with sidewall 308, and when the thickness of glass substrate 300 was about 3 millimeters, the height h of sidewall 308 and clearance support 310 was about 1.5 millimeters.In prior art, as the glass marble of separation material, its diameter is 1 millimeter to 2 millimeters, and the top end diameter d of clearance support 310 of the present invention is about 0.01 millimeter to 1 millimeter.
Please refer to Fig. 4 A and Fig. 4 B, what it illustrated is according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, and the wherein vertical view of lamp socket and stereogram, Fig. 3 B is the cutaway view along 3B-3B hatching among Fig. 4 A.Please refer to Fig. 4 A, and cooperate shown in Fig. 3 B, also have aspirating hole 308a in the sidewall 308 of the first panel 300a periphery, in follow-up making flow process, supply to place the usefulness of exhaust tube to bleed.The clearance support 310 that is positioned on the first surface 306a of the first panel 300a is to distribute with area array formula (Area Array), and the spacing distance of clearance support 310 and sidewall 308, and the spacing distance D of each clearance support 310 be about 1 centimetre (Centimeter, cm).
Though, clearance support 310 among Fig. 4 A and Fig. 4 B is to be the area array formula to distribute, describe with this kind distribution kenel in the present embodiment, but the distribution of clearance support 310 in sidewall 308 enclosing region can be other various kenels, for example be concentric circles and distribute, so the clearance support distribution kenel shown in the figure is not in order to limit the scope of the invention.And the quantity of clearance support 310 and distribution, the demand according to support panel and formation flat florescent lamp can have different quantity, and be the distribution of different kenels.
Then, please refer to Fig. 3 C, on lamp socket 312, form the first fluorescence coating 314a, cover the first surface 306a in sidewall 308 enclosing region, promptly cover the inner surface of sidewall 308, the side of the part first panel 300a, clearance support 310, and the top of sidewall 308 and clearance support 310 exposed to the open air out.The method that forms the first fluorescence coating 314a for example is screen painting, infusion process (Wet Dip) and electrostatic coating method etc., the material of the first fluorescence coating 314a comprises phosphorus matter fluorescent material (Phosphor) etc., for example is to absorb the three look phosphorus matter fluorescent material (Tri-WavelengthPhosphor) that ultraviolet light produces ruddiness, green glow and blue light.
Please refer to Fig. 3 D again, one group of electrode 316 is installed in the lamp socket 312, be configured on the first panel 300a,, and can be connected with external power source (being shown among the figure) by in 308 area surrounded of sidewall.As shown in Figure 5, it is according to preferred embodiment of the present invention, a kind of flat florescent lamp and preparation method thereof, and the vertical view after the lamp socket configured electrodes, Fig. 3 D are along the cutaway view of 3D-3D hatching among Fig. 5.Simultaneously with reference to Fig. 5 and Fig. 3 D, electrode 316 is to be configured in relative both sides in sidewall 308 enclosing region, and electrode 316 is fixed by electrode bearing 324, and electrode 316 can not be electrically connected with external power source (being shown among the figure) via electrode bearing 324, the configuration of electrode 316 comprises plate electrode, convex electrode etc., for example is the plate electrode that is rectangle.
Then, please refer to Fig. 3 E, provide the second identical or different panel 318 of area and lamp socket 312, as the panel of flat florescent lamp, its material is identical with aforesaid glass substrate 300, and area can be identical or different with the first panel 300a.Go up in the second surface 306b of second panel 318 again and form the second fluorescence coating 314b, to cover part second surface 306b corresponding to sidewall 308 enclosing region in the lamp socket 312.Then with the first panel 300a and second panel, 318 configured in parallel, use glass cement (Glass Frit) 320 that the sidewall 308 of lamp socket 312 is engaged with second panel 318, the part second surface 306b of second panel 318 is connected with sidewall 308 and clearance support 310 in the lamp socket 312, between second panel 318 and lamp socket 312, form cavity 322, and the first fluorescence coating 314a and the second fluorescence coating 314b are positioned among the cavity 322, to finish the agent structure of flat florescent lamp.
The method and the material that form the second fluorescence coating 314b on second panel 318 are identical with the first fluorescence coating 314a, and its formation method comprises screen painting, infusion process and electrostatic coating method etc., and its material comprises phosphorus matter fluorescent material etc., for example three look phosphorus matter fluorescent material.With regard to glass cement 320,, then engage Corning 7575 glass cements that both employed glass cements 320 can adopt Corning Incorporated to produce when lamp socket 312 and second panel 318 are Corning 0080 soda-lime glass of being produced with Corning Incorporated when making.When if lamp socket 312 and second panel 318 are made with Corning 7059 hard glasss that Corning Incorporated was produced, then engage Corning 1301 glass cements that both glass cement 320 can use Corning Incorporated to produce.
The advantage of method of the present invention and device is:
1. the present invention adopts the sandblast mode, forms the lamp socket with integrated sidewall and clearance support on substrate, need not use glass edge strip and extra separation material, can simplify the making flow process of flat florescent lamp, reduces cost of manufacture.
2. the present invention makes required sidewall and clearance support on same substrate, can enlarge to make the flow process permissible range, improves product percent of pass.
3. with the integrated clearance support of lamp socket, can increase the structural strength of lamp socket.
4. when lamp socket being engaged formed cavity and vacuumizes with panel, but the clearance support support panel prevents its flexural deformation, with the distance of control panel and lamp socket, keeps the surface flatness of panel.
5. the tip size of clearance support is littler than the glass marble separation material of 1 to 2 millimeter of existing diameter, so can not influence flat florescent lamp overall brightness uniformity, the diffuser plate of need not arranging in pairs or groups can make the brightness uniformity of flat florescent lamp.
6. the present invention uses lamp socket and panel to constitute the gas container with cavity, and in its inner surface coating fluorescence coating, and electrode is disposed in the cavity, promptly constitute can whole luminous, have high brightness and an even brightness area source, can be applicable to the LCD of various sizes, the LCD of large scale or oversize particularly is as its backlight.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (20)
1. flat florescent lamp wherein comprises at least:
One first panel has a first surface;
One sidewall is disposed at this first surface, and is positioned at the periphery of this first panel;
A plurality of clearance supports are disposed at this first surface, and are positioned at this sidewall institute area surrounded, and the height of each clearance support is identical with this sidewall, and the top end diameter of each this each clearance support is about 0.01 millimeter to 1 millimeter;
One first fluorescence coating is configured on this first panel, this first surface of cover part, and expose the top of this each clearance support;
One second panel has a second surface, and this second panel configuration and is connected with this sidewall and each clearance support on this first panel;
One second fluorescence coating is configured on this second panel this second surface of cover part;
One group of electrode is disposed between this first panel and this second panel, and lays respectively at relative both sides in this sidewall institute area surrounded; And
One of them gas of the mist of one mercury vapour and inert gas and inert gas is disposed at the cavity that this first panel, this sidewall and this second panel are surrounded, and wherein this gas can produce ultraviolet light after being subjected to electron excitation.
2. flat florescent lamp as claimed in claim 1, wherein this first panel, this sidewall and this each clearance support are formed in one.
3. flat florescent lamp as claimed in claim 1, wherein the material of this first panel and this second panel comprises glass.
4. flat florescent lamp as claimed in claim 1 wherein also comprises having a glass cement, is disposed between this sidewall and this second panel, in order to connect this first panel and this second panel.
5. flat florescent lamp as claimed in claim 1, wherein the interval of each clearance support is about 1 centimetre.
6. flat florescent lamp as claimed in claim 1, wherein the thickness of this lamp socket is about 3 millimeters.
7. flat florescent lamp as claimed in claim 6, wherein the height of each clearance support is about 1.5 millimeters.
8. flat florescent lamp as claimed in claim 1, wherein the material of this first fluorescence coating and this second fluorescence coating comprises fluorescent material.
9. flat florescent lamp as claimed in claim 1, wherein the material of this first fluorescence coating and this second fluorescence coating comprises three-color phosphor.
10. the manufacture method of a flat florescent lamp wherein comprises the following steps: at least
One glass substrate is provided;
Remove this glass substrate of part and form one first panel, and form a upwardly extending sidewall at the periphery of this first panel, on this first panel, form a plurality of clearance supports simultaneously in this sidewall institute area surrounded, and each clearance support is identical with the height of this sidewall, wherein remove this glass substrate of part, form this first panel, this sidewall and this each clearance support, also be included on this glass substrate, formation has a sand resistance layer of limiting pattern, now is a mask with this sand resistance layer, and use the sandblast mode to remove this glass substrate of part, and form this first panel, this sidewall and this each clearance support;
On this first panel, in this sidewall institute area surrounded, form one first fluorescence coating, cover part first panel, and expose the top of each clearance support;
One group of electrode is configured on this first panel relative both sides in this sidewall institute area surrounded;
One second panel is provided, and forms one second fluorescence coating on a surface of this second panel, the cover part should the surface;
With this first panel and this second panel configured in parallel, part should be connected with this sidewall and each clearance support on the surface, and make this first fluorescence coating and this second fluorescence coating be arranged in the cavity of this first panel and this second panel formation; And
One of them gas of the mist of one mercury vapor and inert gas and inert gas is imported this cavity, and wherein this gas can produce ultraviolet light after being subjected to electron excitation.
11. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this sand resistance layer comprises screen painting.
12. the manufacture method of flat florescent lamp as claimed in claim 11, the material that wherein forms this sand resistance layer comprises the wire mark slurry.
13. the manufacture method of flat florescent lamp as claimed in claim 10, the material that wherein forms this sand resistance layer comprises paper.
14. the manufacture method of flat florescent lamp as claimed in claim 10 wherein engages this first panel with this second panel, also comprise using a glass cement that the part of this second panel should be connected with this sidewall of this first panel on the surface.
15. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this first fluorescence coating comprises screen painting.
16. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this first fluorescence coating comprises infusion process.
17. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this first fluorescence coating comprises electrostatic coating method.
18. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this second fluorescence coating comprises screen painting.
19. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this second fluorescence coating comprises infusion process.
20. the manufacture method of flat florescent lamp as claimed in claim 10, the method that wherein forms this second fluorescence coating comprises electrostatic coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106781 CN1204593C (en) | 2000-04-20 | 2000-04-20 | Planar fluorescent lamp and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106781 CN1204593C (en) | 2000-04-20 | 2000-04-20 | Planar fluorescent lamp and its making process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1318863A CN1318863A (en) | 2001-10-24 |
| CN1204593C true CN1204593C (en) | 2005-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00106781 Expired - Fee Related CN1204593C (en) | 2000-04-20 | 2000-04-20 | Planar fluorescent lamp and its making process |
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| CN (1) | CN1204593C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324642C (en) * | 2003-04-16 | 2007-07-04 | 翰立光电股份有限公司 | Cold cathode plane lamp structure |
| KR100629243B1 (en) * | 2003-12-31 | 2006-09-27 | 엠알시 (주) | Lamp with Wide-range Light Source |
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2000
- 2000-04-20 CN CN 00106781 patent/CN1204593C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN1318863A (en) | 2001-10-24 |
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Owner name: TAIDA ELECTRONIC INDUSTRY CO LTD Free format text: FORMER OWNER: HANLI OPTOELECTRONICS CO., LTD. Effective date: 20070727 |
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Granted publication date: 20050601 Termination date: 20140420 |