CN100378535C - Fixed resin frame set and back light module - Google Patents
Fixed resin frame set and back light module Download PDFInfo
- Publication number
- CN100378535C CN100378535C CNB031226191A CN03122619A CN100378535C CN 100378535 C CN100378535 C CN 100378535C CN B031226191 A CNB031226191 A CN B031226191A CN 03122619 A CN03122619 A CN 03122619A CN 100378535 C CN100378535 C CN 100378535C
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- glue frame
- fixing glue
- corner
- trunking
- light
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Abstract
The present invention discloses a fixing rubber frame group which is suitable for bearing at least one lamp tube, one end of the lamp tube is connected with a power cord, and the fixing rubber frame group is mainly composed of a lower fixing rubber frame and an upper fixing rubber frame, wherein the lamp tube is arranged between the upper and the lower fixing rubber frames, the lower fixing rubber frame is provided with a corner cord collecting slot, the power cord is arranged in the corner cord collecting slot, the end of the power cord is exposed out of the lower fixing rubber frame, and the upper fixing rubber frame is arranged on the low fixing rubber frame. Because of the corner cord collecting slot, the power cord can be effectively fixed, and the phenomena of displacement and weld spot loosening of the power cord caused by improper exogenic action can be avoided. In addition, the present invention also provides a back light module which is mainly composed of a light guide plate, the lamp tube, and the fixing rubber frame group.
Description
Technical field
The present invention relates to a kind of fixing glue frame group and backlight module, particularly a kind of power lead of effectively fixed lamp tube is with avoid solder joint fixing glue frame group that gets loose and the backlight module of using this fixing glue frame group.
Background technology
At improving rapidly of multimedia society, be indebted to the tremendous progress of semiconductor subassembly or man-machine display device mostly.With regard to display, cathode ray tube (CRT) is monopolized monitor market in recent years because of having excellent display quality and its economy always.Yet, operate the environment of most terminating machine/display equipments on the table for the individual, or with the incision of the viewpoint of environmental protection, if predicted with the trend of saving the energy, cathode-ray tube (CRT) is because of still existing a lot of problems in space utilization and the energy resource consumption, and can't effectively provide solution for the demand of light, thin, short, little and low consumpting power.Therefore, the LCD (LCD) with high image quality, high spatial utilization ratio, low consumpting power, advantageous characteristic such as radiationless becomes the main flow in market gradually.
Fig. 1 represents a kind of structural representation of known backlit module.See also shown in Figure 1ly, (Light Guide Panel, LGP) 110, one fluorescent tube (Lamp) 120, a reflex housing (Holder) 130, a blooming piece (Opticalfilm) 140 and a fixing glue frame group 200 constitute backlight module 100 by a light guide plate.Wherein, light guide plate 110 has a light entrance face 112, one a smooth diffusingsurface 114 and a light-emitting face 116.Fluorescent tube 120 is disposed at light entrance face 112 sides of light guide plate 110, and the light that fluorescent tube 120 is provided can be incident to by the light entrance face 112 of light guide plate 110 in the light guide plate 110, and after the scattering and reflection of the light diffusingsurface 114 of process light guide plate 110, by light-emitting face 116 outgoing.From the above, light guide plate 110 can be converted to the linear light that fluorescent tube 120 is sent the kenel of area source, obtains even brightness light in order to guarantee the liquid crystal panel (not shown).
As shown in Figure 1, it is other that reflex housing 130 is disposed at fluorescent tube 120, and cover this fluorescent tube 120, concentrates direction irradiation towards the light entrance face 112 of light guide plate 110 in order to the light that fluorescent tube 120 is sent.Blooming piece 140 is disposed on the light-emitting face 116 of light guide plate 110, is used for improving representing of backlight module 100 briliancy.
As shown in Figure 1, fixing glue frame group 200 mainly by fixing glue frame (upperframe) on one 210 and once fixing glue frame (bottom frame) 220 constitute.Wherein, following fixing glue frame 220 is in order to carry above-mentioned light guide plate 110, fluorescent tube 120 and reflex housing 130, and have a plurality of projections 224 on the sidewall 222 of following fixing glue frame 220, have a plurality of fastening pieces 212 and go up fixing glue frame 210 corresponding to above-mentioned projection 224, and has an opening 214 on the fastening piece 212, this opening 214 is suitable for being fastened on the above-mentioned projection 224, interfixes with following fixing glue frame 220 so that go up fixing glue frame 210.In addition, last fixing glue frame 210 has a window 216, in order to expose the light-emitting face 116 of light guide plate 110, makes the area source by light-emitting face 116 outgoing, can expose to the liquid crystal panel (not shown) that is disposed at fixing glue frame 210 tops.So learn by above-mentioned, by of the combination of last fixing glue frame 210 with following fixing glue frame 220, and above-mentioned light guide plate 110, fluorescent tube 120 and reflex housing 130 is fixing, make backlight module 100 reach incorporate purpose.
Fig. 2 A～2B represents a kind of synoptic diagram of leading-out terminal of known backlit module.Please consult shown in Fig. 2 A～2B jointly, the above-mentioned fluorescent tube 120 that is disposed at down in the fixing glue frame 220, the one end is connected with a power lead 122 in the mode of welding usually, and this power lead 122 is drawn outside the backlight module 100, and couple a bias voltage by this power lead, luminous to drive fluorescent tube 120.In addition, a side of following fixing glue frame 220 has a fixing rubber base 226 usually, and fixedly disposes a trunking 228 on the rubber base 226 at this, and its power lead 122 is disposed in this trunking 228, and the ends exposed of power lead 122 is in the outside of fixing glue frame 220 down.In addition, last fixing glue frame 210 has a cover plate 218, and this cover plate 218 is by after above-mentioned fastening piece 212 and the projection 224 mutual snappings, can be covered on fixedly on the rubber base 226.It should be noted that because known trunking 228 is the design of straight line conduit, its following shortcoming of deriving easily:
1. because the trunking of following fixing glue frame is the design of straight line conduit, its power lead that is disposed in this conduit slides along the axis direction of fluorescent tube easily, and causes the power lead displacement, and its fixed effect is not good.
2. because the trunking of following fixing glue frame is the design of straight line conduit; when testing or assemble; power lead regular meeting is subjected to improper external force effect; this external force directly acts on power lead and the pad that fluorescent tube is connected, so, causes getting loose or exposing of pad easily; and the situation of generation electric leakage; even excessive because of the strength of pullling, cause pad fracture, cause the fluorescent tube can't normal running.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of fixing glue frame group and backlight module exactly, and it is the position of fixed power source line effectively, avoiding power lead because of improper external force effect, and then causes power lead displacement, solder joint to get loose or phenomenon such as exposes.
The present invention proposes a kind of fixing glue frame, is suitable for carrying at least one fluorescent tube, and an end of fluorescent tube is connected with a power lead, and this fixing glue frame group mainly is made of fixing glue frame on the fixing glue frame and once.Wherein, following fixing glue frame has a corner trunking that comprises at least one corner, power lead is disposed in this corner trunking, and described corner trunking is positioned at the ends exposed of this power lead in the position of the outside of this time fixing glue frame, is disposed at down on the fixing glue frame and go up the fixing glue frame.
The present invention reintroduces a kind of backlight module, and this backlight module mainly is made of a light guide plate, at least one fluorescent tube and a fixing glue frame group.Wherein, light guide plate has at least one light entrance face, at least one smooth diffusingsurface and a light-emitting face; Fluorescent tube one end is connected with a power lead, and this fluorescent tube is disposed at by the light entrance face, and the light that fluorescent tube provided can be incident in the light guide plate by light entrance face, and through behind the light diffusingsurface, is passed to the light-emitting face outgoing; Fixing glue frame group mainly is made of fixing glue frame on the fixing glue frame and once.Wherein, following fixing glue frame has a corner trunking that comprises at least one corner, power lead is disposed in this corner trunking, described corner trunking is positioned at the position of the ends exposed of this power lead in the outside of this time fixing glue frame, be disposed at down on the fixing glue frame and go up the fixing glue frame, and last fixing glue frame has a window, in order to expose the light-emitting face of light guide plate.
Described according to preferred embodiment of the present invention, above-mentioned down fixing glue frame has a fixing rubber base, and the corner trunking is positioned at this fixedly on the rubber base, and on the fixing glue frame have a cover plate, and this cover plate is disposed at fixedly on the rubber base.In addition, the corner trunking has one or more corner, and this corner for example is right angle, acute angle or obtuse angle.In addition, have a plurality of spacing salient points in the corner trunking, in order to the displacement of restriction power lead.
Described according to preferred embodiment of the present invention, the above-mentioned sidewall of fixing glue frame down also has a plurality of projections, also have a plurality of fastening pieces and go up the fixing glue frame corresponding to these projections, all has an opening on each fastening piece, this opening is suitable for being fastened on the projection, interfixes with following fixing glue frame so that go up the fixing glue frame.In addition, also have a lead-in chamfered on each projection, move on projection in order to the guiding fastening piece, make fastening piece when fastening, the opening on the fastening piece is easier to be fastened on the projection.
Described according to preferred embodiment of the present invention, more dispose a blooming piece on the light-emitting face of above-mentioned light guide plate, in order to improve representing of brilliancy of backlight module.In addition, above-mentioned fluorescent tube is other more to dispose a reflex housing, and this reflex housing also covers fluorescent tube, in order to the light that fluorescent tube sent can be concentrated the direction irradiation towards the light entrance face of light guide plate.In addition, the bottom of above-mentioned light guide plate more disposes a reflector plate, in order to the reflection and the diffusion effect of the light diffusingsurface of promoting light guide plate, and then improves the light utilization efficiency of backlight module.
The present invention has the corner trunking of one or more corner because of employing, and the power lead that is connected with fluorescent tube is disposed in this corner trunking, can be by the position of the corner design fixed power source line in the corner trunking, to avoid the slip of power lead.In addition, by the corner design of corner trunking, make power lead be subjected to improper external force and do the time spent, this external force can act on this corner, gets loose, exposes or rupture with the pad of avoiding power lead to be connected with fluorescent tube.
Description of drawings
Above and other objects of the present invention, feature and advantage describe a preferred embodiment in detail below in conjunction with accompanying drawing, so that can become apparent.
Fig. 1 is the structural representation of a kind of known backlight module of expression;
Fig. 2 A～2B is the synoptic diagram of the leading-out terminal of a kind of known backlight module of expression;
Fig. 3 is the structural representation of expression according to the backlight module of a preferred embodiment of the present invention;
Fig. 4 A～4B is the synoptic diagram of expression according to the leading-out terminal of the backlight module of a preferred embodiment of the present invention; And
Fig. 5 A～5C is the synoptic diagram of expression according to the corner trunking of another preferred embodiment of the present invention.
Embodiment
Fig. 3 represents the structural representation according to the backlight module of a preferred embodiment of the present invention.Please refer to shown in Figure 3ly, backlight module 300 mainly is made of a light guide plate 310, a fluorescent tube 320, a reflex housing 330, a blooming piece 340, a reflector plate 350 and a fixing glue frame group 400.Wherein, light guide plate 310 has a light entrance face 312, one a smooth diffusingsurface 314 and a light-emitting face 316, and has a plurality of V-arrangement indentations or a plurality of concave point (not shown) on this light diffusingsurface 314.Fluorescent tube 320 for example is a cold cathode fluorescent lamp (CCFL), the light entrance face 312 that is disposed at light guide plate 310 is other, and the light that this fluorescent tube 320 is provided can be incident to by the light entrance face 312 of light guide plate 310 in the light guide plate 310, and after the scattering and reflection of the light diffusingsurface 314 of process light guide plate 310, by light-emitting face 316 outgoing.So know that as available from the above light guide plate 310 can be converted to the linear light that fluorescent tube 320 is sent the kenel of area source, obtain even brightness light in order to guarantee the liquid crystal panel (not shown).
As shown in Figure 3, it is other that reflex housing 330 is disposed at fluorescent tube 320, and cover this fluorescent tube 320, concentrates direction irradiation towards the light entrance face 312 of light guide plate 310 in order to the light that fluorescent tube 320 is sent.Blooming piece 340 is disposed on the light-emitting face 316 of light guide plate 310, is used for improving representing of backlight module 300 briliancy.Reflector plate 350 is disposed at the bottom of light guide plate 310, in order to the reflection and the diffusion effect of the light diffusingsurface 314 of promoting light guide plate 310, and then improves the light utilization efficiency of backlight module 300.By the configuration of above-mentioned reflex housing 330, blooming piece 340 and reflector plate 350, so that the area source that backlight module 300 is provided more becomes perfect, to satisfy the briliancy demand of high LCD of resolving.
As shown in Figure 3, fixing glue frame group 400, in order to carrying above-mentioned light guide plate 310, fluorescent tube 320 and reflex housing 330, its mainly by fixing glue frame 410 on one and once fixing glue frame 420 constitute.Wherein, have a plurality of projections 424 on the sidewall 422 of following fixing glue frame 420, have a plurality of fastening pieces 412 and go up fixing glue frame 410 corresponding to above-mentioned projection 424, and has an opening 414 on the fastening piece 412, this opening 414 is suitable for being fastened on the above-mentioned projection 424, so that upward fixing glue frame 410 interfixes with following fixing glue frame 420, and reach the purpose of close-fitting.In addition, have a lead-in chamfered 424a on the projection 424, go up in this lead-in chamfered 424a in order to guiding fastening piece 412 and move, make fastening piece 412 when fastening, the opening 414 on the fastening piece 412 is easier to be fastened on the projection 424.In addition, last fixing glue frame 410 has a window 416, in order to expose the light-emitting face 316 of light guide plate 310, makes the area source by light-emitting face 316 outgoing, can expose to the liquid crystal panel (not shown) that is disposed at fixing glue frame 410 tops, with provide liquid crystal panel the light source of palpus.
So learn by above-mentioned, by of the combination of last fixing glue frame 410, and members such as above-mentioned light guide plate 310, fluorescent tube 320 and reflex housing 330 are fixed with following fixing glue frame 420, make backlight module 300 reach incorporate purpose.
Fig. 4 A～4B represents the synoptic diagram according to the leading-out terminal of the backlight module of a preferred embodiment of the present invention.Please consult shown in Fig. 4 A～4B jointly, the above-mentioned fluorescent tube 320 that is disposed at down in the fixing glue frame 420, the one end for example is connected with a power lead 322 in the mode of welding, and this power lead 322 is drawn outside the backlight module 300, and couple a bias voltage by this power lead 322, luminous to drive fluorescent tube 320.In addition, one side of following fixing glue frame 420 has a fixing rubber base 426, and fixedly dispose a corner trunking 428 on the rubber base 426 at this, its power lead 322 is disposed in this corner trunking 428, and the ends exposed of power lead 322 is in the outside of following fixing glue frame 420.In addition, last fixing glue frame 410 has a cover plate 418 corresponding to said fixing rubber base 426 places, and this cover plate 418 is by after above-mentioned fastening piece 412 and the projection 424 mutual snappings, can be covered on fixedly on the rubber base 426.
Please continue to consult shown in Fig. 4 A, corner trunking 428 has two corners (conduit that is this corner trunking 428 is through twice turnover), this two corner for example is the right angle, when its power lead 322 is disposed in the corner trunking 428, can be by the design of the corner of corner trunking 428, with restriction power lead 322 along the moving of the axis direction of fluorescent tube 320, and then the position of fixed power source line 322.In addition, more configurable in the corner trunking 428 have a plurality of spacing salient point 428a, but these these power leads 322 of spacing salient point 428a ejection, further to limit the displacement of power lead 322 again.It should be noted that, corner design by corner trunking 428, make power lead 322 be subjected to improper external force and do the time spent, this external force can act on this corner, and can not directly act on power lead 322 and the pad that fluorescent tube 320 is connected, so can avoid pad to get loose, expose or phenomenon such as fracture.
Fig. 5 A～5C represents the synoptic diagram according to the corner trunking of another preferred embodiment of the present invention.Please consult shown in Fig. 5 A～5C jointly, fixedly the corner trunking 428 on the rubber base 426 is not limited to be designed among Fig. 4 A two corners, single corner (as Fig. 5 A) or three corners (as Fig. 5 B), four corner a plurality of corners such as (as Fig. 5 C) can be designed to, and a plurality of lines position salient point (not shown) can be in these corner trunkings 428, disposed equally.
In addition, corner trunking in the present embodiment, its corner are example explanation with the right angle, but and the kenel at non-limiting use right angle, it also can be designed to the kenel at acute angle, obtuse angle or other can limit the trunking of the displacement of power lead, also can reach identical fixed effect.
In addition, fixing glue frame group in the present embodiment applies in the backlight module, in order to carrying fluorescent tube, reflex housing and light guide plate, and give the power lead of fixed lamp tube, certainly, those skilled in the art should know by inference, and fixing glue frame group of the present invention is not that limitation is applied in the backlight module, fixing glue frame group of the present invention also can only be used to carry the light source module of being made up of one or more fluorescent tube, and can reach the identical purpose of the power lead of fixed lamp tube.
In sum, fixing glue frame group of the present invention and backlight module have following advantage at least:
1. in fixing glue frame group of the present invention and the backlight module, because the corner trunking of following fixing glue frame is the design of one or more corner, its power lead that is disposed in this conduit is difficult for sliding along the axis direction of fluorescent tube, and causes the power lead displacement, and its fixed effect is good.
2. in fixing glue frame group of the present invention and the backlight module; because the corner trunking of following fixing glue frame is the design of one or more corner; when being subjected to improper external force, power lead does the time spent; this external force directly acts on the corner; and can not act on power lead and the pad that fluorescent tube is connected; so, can protect this pad.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; those skilled in the art without departing from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is with being as the criterion of limiting in claims.
Claims (15)
1. a fixing glue frame group is suitable for carrying at least one fluorescent tube, and an end of this fluorescent tube is connected with a power lead, and this fixing glue frame group comprises:
Fixing glue frame once, it has a corner trunking that comprises at least one corner, and this power lead is disposed in this corner trunking, and described corner trunking is positioned at the position of the ends exposed of this power lead in the outside of this time fixing glue frame; And
Fixing glue frame on one, it is disposed on this time fixing glue frame,
The sidewall of this time fixing glue frame also has plurality of bump, also had a plurality of fastening pieces and should go up the fixing glue frame corresponding to these projections, each described projection also has a lead-in chamfered, in order to guide described fastening piece on described projection, to move, so that described fastening piece correspondence is fastened on the described projection.
2. fixing glue frame group as claimed in claim 1 is characterized in that, this time fixing glue frame also has a fixing rubber base, and this corner trunking is positioned at this fixedly on the rubber base.
3. fixing glue frame group as claimed in claim 2 is characterized in that fixing glue frame also has a cover plate on this, and this cover plate is disposed at this fixedly on the rubber base.
4. as the described fixing glue frame of one of claim 1 to 3 group, it is characterized in that this corner of this corner trunking comprises right angle, acute angle and obtuse angle.
5. fixing glue frame group as claimed in claim 1 is characterized in that, also has a plurality of spacing salient points in this corner trunking, in order to limit the displacement of this power lead.
6. fixing glue frame group as claimed in claim 1 is characterized in that each described fastening piece has an opening, and this opening is suitable for being fastened on described projection on one of them, so that should go up fixing glue frame and this time fixing glue frame interfixes.
7. backlight module comprises:
One light guide plate, it has at least one light entrance face, at least one smooth diffusingsurface and a light-emitting face;
At least one fluorescent tube, the one end connects a power lead, and this fluorescent tube is disposed at by this light entrance face, and the light that this fluorescent tube provided can be incident in this light guide plate by this light entrance face, and through behind this light diffusingsurface, is passed to this light-emitting face outgoing;
One fixing glue frame group, it is suitable for carrying this light guide plate and this fluorescent tube, and this fixing glue frame group comprises:
Fixing glue frame once, it has a corner trunking that comprises at least one corner, and this power lead is disposed in this corner trunking, and described corner trunking is positioned at the position of the ends exposed of this power lead in the outside of this time fixing glue frame; And
Fixing glue frame on one, it is disposed on this time fixing glue frame, and should go up fixing glue frame and have a window, exposing this light-emitting face,
The sidewall of this time fixing glue frame also has plurality of bump, also had a plurality of fastening pieces and should go up the fixing glue frame corresponding to these projections, each described projection also has a lead-in chamfered, in order to guide described fastening piece on described projection, to move, so that described fastening piece correspondence is fastened on the described projection.
8. backlight module as claimed in claim 7 is characterized in that, this time fixing glue frame also has a fixing rubber base, and this corner trunking is positioned at this fixedly on the rubber base.
9. backlight module as claimed in claim 8 is characterized in that fixing glue frame also has a cover plate on this, and this cover plate is disposed at this fixedly on the rubber base.
10. backlight module as claimed in claim 7 is characterized in that, this corner of this corner trunking comprises right angle, acute angle and obtuse angle.
11. backlight module as claimed in claim 7 is characterized in that, also has a plurality of spacing salient points in this corner trunking, in order to limit the displacement of this power lead.
12. backlight module as claimed in claim 7 is characterized in that, each described fastening piece has an opening, and this opening is suitable for being fastened on described projection on one of them, so that should go up fixing glue frame and this time fixing glue frame interfixes.
13. backlight module as claimed in claim 7 also comprises a blooming piece, this blooming piece is disposed on this light-emitting face.
14. backlight module as claimed in claim 7 also comprises a reflex housing, this reflex housing is disposed at this fluorescent tube side and covers this fluorescent tube.
15. backlight module as claimed in claim 7 also comprises a reflector plate, this reflector plate is disposed at the bottom of this light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031226191A CN100378535C (en) | 2003-04-16 | 2003-04-16 | Fixed resin frame set and back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031226191A CN100378535C (en) | 2003-04-16 | 2003-04-16 | Fixed resin frame set and back light module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538219A CN1538219A (en) | 2004-10-20 |
| CN100378535C true CN100378535C (en) | 2008-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031226191A Expired - Fee Related CN100378535C (en) | 2003-04-16 | 2003-04-16 | Fixed resin frame set and back light module |
Country Status (1)
| Country | Link |
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| CN (1) | CN100378535C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412652C (en) * | 2006-08-10 | 2008-08-20 | 友达光电股份有限公司 | Lamp tube replaceable backlight module |
| CN102865525B (en) * | 2012-10-12 | 2017-10-13 | 深圳市华星光电技术有限公司 | Backlight module |
| CN102865524A (en) * | 2012-10-12 | 2013-01-09 | 深圳市华星光电技术有限公司 | Backlight module |
| CN106168718A (en) * | 2016-09-28 | 2016-11-30 | 昆山龙腾光电有限公司 | Liquid crystal display and display device |
| CN109669298B (en) * | 2019-01-14 | 2021-12-28 | 京东方科技集团股份有限公司 | Backlight module and display device |
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| JPH1078762A (en) * | 1996-08-15 | 1998-03-24 | Kiko Ba | Liquid crystal monitoring device having projection function |
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| US6388722B1 (en) * | 1997-04-04 | 2002-05-14 | Hitachi, Ltd. | Back light system for minimizing non-display area of liquid crystal display device |
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| CN1396480A (en) * | 2001-07-11 | 2003-02-12 | Lg.飞利浦Lcd有限公司 | Construction for assembing lamp line for back-light element in module of liquid crystal display |
| CN2622735Y (en) * | 2003-04-16 | 2004-06-30 | 广辉电子股份有限公司 | Fixed rubber frame group and back light module |
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2003
- 2003-04-16 CN CNB031226191A patent/CN100378535C/en not_active Expired - Fee Related
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| US5375005A (en) * | 1991-09-10 | 1994-12-20 | Sharp Kabushiki Kaisha | Liquid crystal display device for effectively supporting liquid crystal plate and illuminating device |
| US5422751A (en) * | 1992-10-14 | 1995-06-06 | Apple Computer, Inc. | Liquid crystal display assembly employing front bezel, frame holding liquid crystal cell attached to bezel, and light source and back plate attached to bezel |
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| CN2622735Y (en) * | 2003-04-16 | 2004-06-30 | 广辉电子股份有限公司 | Fixed rubber frame group and back light module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1538219A (en) | 2004-10-20 |
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