CN1979745A - Light-source module and mfg. method - Google Patents
Light-source module and mfg. method Download PDFInfo
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- CN1979745A CN1979745A CN 200510127714 CN200510127714A CN1979745A CN 1979745 A CN1979745 A CN 1979745A CN 200510127714 CN200510127714 CN 200510127714 CN 200510127714 A CN200510127714 A CN 200510127714A CN 1979745 A CN1979745 A CN 1979745A
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- heat
- source module
- dissipating cavity
- light source
- light
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Abstract
The invention discloses a kind of light source module, which includes cathode ray tubes, heat dispersing cavity, photics film, light filtering layer and cooling fluid. The cathode ray tube has the light emitting end that is used to emit ray. The heat dispersing cavity is connected to the light emitting end of the cathode ray tube, whereas the ray is emitted to the outer of the heat dispersing cavity through the opening of the heat dispersing cavity. The photics film is set at the openings, and makes the cathode ray tubes, heat dispersing cavity and the photics film form a cavity. The light filtering layer is set on the inner surface of the heat dispersing cavity, whereas the cooling fluid is filled in the cavity.
Description
Technical field
The present invention relates to a kind of light source module and manufacture method thereof of display, and be particularly related to a kind of light source module and manufacture method thereof with CRT display.
Background technology
(cathode ray tube, CRT) in the light source module of display, its cathode ray tube easily produces sizable heat energy after operation a period of time at cathode ray tube.For with cathode ray tube as for the display of light-emitting component, if suitably do not remove these heat energy, just cause the reduction of picture output quality easily.Therefore, in cathode-ray tube display, can have suitable cooling mechanism usually, to get rid of the heat energy that cathode ray tube was produced.
Known way is that the light exit side with cathode ray tube is connected to heat-dissipating cavity, and inserts cooling fluid at this heat-dissipating cavity, and the light that cathode ray tube sent then is the outgoing by this cooling fluid.Hence one can see that, and the heat energy that cathode ray tube is produced when work can be got rid of by cooling fluid and heat-dissipating cavity.
Because it is aluminium alloy ADC12 has quite excellent thermal conduction rate (being about 96%), therefore many at present with its material as heat-dissipating cavity.Yet the high reflectance of the heat-dissipating cavity that this alloy material is constituted but makes the emitted light of cathode ray tube by surface reflection within the heat-dissipating cavity easily, thereby influences the output quality of light.Known solution be to heat-dissipating cavity carry out electricity the manufacture method of application (electro deposition painting), (zincphosphorate, chemical formula are ZnP to form one deck trbasic zinc phosphate
2O
3) on the surfaces externally and internally of heat-dissipating cavity.
From the above, electricity the step of application be earlier heat-dissipating cavity to be carried out grease removal (defatting) to remove the grease on heat-dissipating cavity surface.Carry out the cleaning on heat-dissipating cavity surface afterwards.Then heat-dissipating cavity is carried out phosphate treatment (phosphate treatment), and after phosphate treatment, again heat-dissipating cavity is cleaned.Then just heat-dissipating cavity is immersed fully electricity in the solution, with comprehensively in the surface of heat-dissipating cavity formation trbasic zinc phosphate.Clean again at last and step such as bake drying.Because trbasic zinc phosphate except heat conduction speed is good, also has good optical character such as antiradar reflectivity, therefore can avoid problems such as light reflection, and then improve the output quality of light.
Yet, the trbasic zinc phosphate of coating surface outside the heat-dissipating cavity is after the process chemical change, can on the heat-dissipating cavity outer surface, produce black crystal film, and these black crystal films will make the heat energy of heat-dissipating cavity inside be difficult for shedding, and then cause the coolant temperature of heat-dissipating cavity inside to raise.In case cooling fluid is under the high temperature for a long time, just be easy to generate rottenly, make the optical property such as refractive index, penetrance of cooling fluid change, and then influence its useful life.
Summary of the invention
Based on above-mentioned, purpose of the present invention just provides a kind of light source module, so that the cooling fluid of light source module is kept stable optical property.
A further object of the present invention provides a kind of manufacture method of light source module, to improve the useful life of CRT display.
According to above-mentioned purpose and other purpose, the present invention proposes a kind of light source module, and it comprises cathode ray tube, heat-dissipating cavity, blooming piece, light shield layer and cooling fluid.Cathode ray tube has light exit side, and it is suitable for emergent ray, and heat-dissipating cavity then is the light exit side that is connected in cathode ray tube.Wherein, heat-dissipating cavity has opening, light be through opening thus and outgoing to heat-dissipating cavity.In addition, blooming piece is arranged at opening part, forms chamber and make between cathode ray tube, heat-dissipating cavity and the blooming piece.In addition, light shield layer is to be arranged at surface within the heat-dissipating cavity, and cooling fluid then is to be filled in the chamber.
According to the described light source module of preferred embodiment of the present invention, wherein the material of light shield layer is a dark material.
According to the described light source module of preferred embodiment of the present invention, wherein the material of light shield layer is that (zinc phosphorate, chemical formula are ZnP to trbasic zinc phosphate
2O
3).
According to the described light source module of preferred embodiment of the present invention, wherein the surface is provided with a plurality of fin outside the heat-dissipating cavity.
According to the described light source module of preferred embodiment of the present invention, wherein the material of heat-dissipating cavity is an albronze.
According to the described light source module of preferred embodiment of the present invention, comprise that also protective layer is coated on surface outside this heat-dissipating cavity, this protective layer for example is an antirust coat.
According to the described light source module of preferred embodiment of the present invention, wherein blooming piece is projection eyeglass (projecting lens).
The present invention also proposes a kind of light source module manufacture method, and it is that the heat-dissipating cavity with opening is provided earlier, forms light shield layer surface within heat-dissipating cavity then.Then, provide blooming piece, and blooming piece is arranged at opening part.Afterwards, provide cathode ray tube, and this light exit side be connected in heat-dissipating cavity with light exit side so that the light that cathode ray tube sent via opening outgoing to heat-dissipating cavity.Wherein, be to form chamber between heat-dissipating cavity, blooming piece and the cathode ray tube.Then, cooling fluid is flow in the chamber.
According to the described light source module manufacture method of preferred embodiment of the present invention, the step that wherein forms light shield layer comprises provides dry powder, drier powder is attached to surface within the heat-dissipating cavity.Then, the heat drying powder melts to form light shield layer powder.
According to the described light source module manufacture method of preferred embodiment of the present invention, wherein dry powder is being attached within the heat-dissipating cavity before the surface, comprise also forming adhesion layer on surface within the heat-dissipating cavity that wherein this adhesion layer for example is a resin.
According to the described light source module manufacture method of preferred embodiment of the present invention, wherein provide to comprise in the step of dry powder the dry powder that has electric charge is provided.
According to the described light source module manufacture method of preferred embodiment of the present invention, wherein the material of light shield layer is a dark material.
According to the described light source module manufacture method of preferred embodiment of the present invention, wherein the material of light shield layer is that (zinc phosphorate, chemical formula are ZnP to trbasic zinc phosphate
2O
3).
According to the described light source module manufacture method of preferred embodiment of the present invention, comprise also forming protective layer surface outside this heat-dissipating cavity that wherein this protective layer for example is an antirust coat.
According to the described light source module manufacture method of preferred embodiment of the present invention, wherein blooming piece is the projection eyeglass.
The present invention is the inner surface that light shield layer is arranged at heat-dissipating cavity, to prevent that light is in the inner light reflex that produces of heat-dissipating cavity.And, because the present invention does not form light shield layer at the outer surface of heat-dissipating cavity,, the present invention has higher heat-sinking capability so comparing with known technology.
For above and other objects of the present invention, feature and advantage can be become apparent, the present invention's cited below particularly preferred embodiment, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the schematic flow sheet of the light source module manufacture method of preferred embodiment of the present invention.
Fig. 2 is the generalized section of the light source module of preferred embodiment of the present invention.
Fig. 3 is the generalized section of heat-dissipating cavity among Fig. 2.
Fig. 4 is the coolant temperature-time graph of the present invention and known light source module.
Fig. 5 is the cooling chamber surface temperature-time curve of the present invention and known light source module.
The main element description of symbols
100: the light source module manufacture method
110,120,130,140,150: step
200: light source module
210: cathode ray tube
212: light exit side
220: heat-dissipating cavity
222: opening
230: blooming piece
240: light shield layer
250: cooling fluid
260: chamber
270: protective layer
280: fin
Embodiment
Fig. 1 is the schematic flow sheet of the light source module manufacture method of preferred embodiment of the present invention.Please refer to Fig. 1, the light source module manufacture method at first is as described in the step 110, and the heat-dissipating cavity with opening is provided.The material of this heat-dissipating cavity for example is an albronze, and preferable be ADC12.As described in the step 120, form light shield layer surface within heat-dissipating cavity afterwards, wherein the material of this light shield layer for example be the material of dark color.In the present embodiment, the method that forms light shield layer for example is that the material that constitutes light shield layer is provided earlier, and it for example is dry powder.In a preferred embodiment, this xeraphium style is made up of trbasic zinc phosphate in this way.
From the above, for example utilize the mode of spraying afterwards, make dry powder be attached to the inner surface of heat-dissipating cavity, and form the powder thin layer.In order to make the xeraphium body can be attached to the inner surface of heat-dissipating cavity, in a preferred implementation, for example can be earlier form one deck adhesion layer at the inner surface of heat-dissipating cavity, its material for example is a resin.Thus, after dry powder was sprayed on the adhesion layer, dry powder just can be attached on the adhesion layer, thereby the surface forms the powder thin layer within heat-dissipating cavity.
In addition, in another better embodiment, the present invention can also be by providing the dry powder that has electric charge, and directly that this is electrically charged dry powder is sprayed at surface within the heat-dissipating cavity.Wherein, dry powder with electric charge will help dry powder to be attached within the heat-dissipating cavity surface, thereby form the powder thin layer.
After forming above-mentioned powder thin layer, then for example this heat-dissipating cavity is placed hot environment, and heating powder thin layer, the powder thin layer is melted.And then the powder thin layer that melts lowered the temperature, solidify light shield layer thereby form.
Then, blooming piece is provided, and blooming piece is arranged at opening part as described in the step 130.Wherein, blooming piece for example is the projection eyeglass.As described in the step 140, the cathode ray tube with light exit side is provided, and its light exit side is connected in heat-dissipating cavity then so that the light that cathode ray tube sent via opening outgoing to heat-dissipating cavity.Wherein, heat-dissipating cavity, blooming piece and cathode ray tube can form chamber jointly.As described in the step 150, cooling fluid is flow in the chamber afterwards.
What deserves to be mentioned is that except making the present invention's the light source module according to above-mentioned step, present embodiment can also form layer protective layer in the surface outside heat-dissipating cavity, it for example is an antirust coat, and corrosion takes place on the surface outside the heat-dissipating cavity to avoid.
Please refer to Fig. 2 and Fig. 3, light source module 200 is to utilize the manufacturing of above-mentioned light source module manufacture method to form, and it comprises cathode ray tube 210, heat-dissipating cavity 220, blooming piece 230, light shield layer 240 and cooling fluid 250.Cathode ray tube 210 has light exit side 212, in order to emergent ray.Heat-dissipating cavity 220 is connected in the light exit side 212 of cathode ray tube 210, and heat-dissipating cavity 220 has opening 222, from the light of light exit side 212 outgoing of cathode ray tube 210 promptly be via opening 222 outgoing to heat-dissipating cavity 220.Wherein, the material of heat-dissipating cavity 220 for example is an albronze, and preferable be ADC12.
Blooming piece 230 is arranged at opening 222 places, make to form chamber 260 between cathode ray tube 210, heat-dissipating cavity 220 and the blooming piece 230, and cooling fluid 250 promptly is to be filled in the chamber 260.In addition, light shield layer 240 is arranged at surface within the heat-dissipating cavity 220.
In addition, in another better embodiment, light source module 200 for example can also comprise a plurality of fin 280, is arranged at surface outside the heat-dissipating cavity 220, to reach better radiating effect.
Please continue with reference to Fig. 2, when light after light exit side 212 outgoing of cathode ray tube 220, light penetration is positioned at the cooling fluid 250 of chamber 260, and from blooming piece 230 outgoing.Because the light shield layer 240 of present embodiment only is coated on surface within the heat-dissipating cavity 220, the heat energy that produces when therefore heat-dissipating cavity 220 can be got rid of its inside effectively because of cathode ray tube 210 work, to avoid heat-dissipating cavity 220 internal temperatures too high, and make the light transmittance of cooling fluid 250 and refractive index change, and thereby influence the quality of light output.In addition, light shield layer 240 also can reduce the reflection of light in heat-dissipating cavity inside effectively, to keep the output quality of light.
In addition, the light source module 200 of present embodiment can also be optionally outside heat-dissipating cavity 220 surface form layer protective layer 270, be subjected to the injury of external factor such as corrosion to avoid heat-dissipating cavity 220.
Please refer to Fig. 3 and Fig. 4, in the test of reality, compare between the light source module at the light source module of known technology and present embodiment respectively.After hot machine one hour, utilize the thermocouple device, respectively the cooling fluid in two kinds of above-mentioned light source modules is carried out the measurement of temperature.Can find by Fig. 4, after hot machine one hour, the temperature of the present invention's cooling fluid is lower than the temperature of the cooling fluid of known technology, its temperature spread 1.5 degree Celsius approximately, and can find by Fig. 5, the temperature of the present invention's heat-dissipating cavity outer surface also is lower than the temperature of the heat-dissipating cavity outer surface of known technology, and its temperature spread is about 2.5 degree Celsius.
In sum, the present invention's light source module and manufacture method thereof not only can avoid light to influence the light quality at cooling inside cavity exaggerated reflex, compare with known technology, because the present invention is not provided with light shield layer at the outer surface of heat-dissipating cavity, therefore the present invention's heat-dissipating cavity can't produce chemical change because of the rete of its outer surface, and the problem that causes rate of heat dispation to descend.In other words, the present invention's light source module has higher heat-sinking capability.
In addition, because the present invention's light source module has higher heat-sinking capability, therefore can avoid too much heat energy to accumulate in the cooling cavity, and avoid these heat energy to improve the temperature of cooling fluid, and then influence the optical property of cooling fluid, so the present invention's light source module can have longer useful life than known.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the present invention; when can doing a little change and improvement, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (18)
1. light source module is characterized in that comprising:
Cathode ray tube has light exit side, is suitable for emergent ray;
Heat-dissipating cavity is connected in this light exit side of this cathode ray tube, and this heat-dissipating cavity has opening, this light be via this opening outgoing to this heat-dissipating cavity;
Blooming piece is arranged at this opening part, forms chamber between this cathode ray tube, this heat-dissipating cavity and this blooming piece and make;
Light shield layer is arranged at surface within this heat-dissipating cavity; And
Cooling fluid is filled in this chamber.
2. the light source module according to claim 1, the material that it is characterized in that this light shield layer is a dark material.
3. the light source module according to claim 1, the material that it is characterized in that this light shield layer is a trbasic zinc phosphate.
4. the light source module according to claim 1 is characterized in that the surface is provided with a plurality of fin outside this heat-dissipating cavity.
5. the light source module according to claim 1, the material that it is characterized in that this heat-dissipating cavity is an albronze.
6. the light source module according to claim 1 is characterized in that also comprising that protective layer is arranged at surface outside this heat-dissipating cavity.
7. the light source module according to claim 6 is characterized in that this protective layer is an antirust coat.
8. the light source module according to claim 1 is characterized in that this blooming piece is the projection eyeglass.
9. light source module manufacture method is characterized in that comprising:
Heat-dissipating cavity is provided, and wherein this heat-dissipating cavity has opening;
Form light shield layer surface within this heat-dissipating cavity;
Blooming piece is provided, and this blooming piece is arranged at this opening part;
Cathode ray tube with light exit side is provided, this light exit side is connected in this heat-dissipating cavity, outgoing wherein is to form chamber between this heat-dissipating cavity, this blooming piece and this cathode ray tube to this heat-dissipating cavity so that the light that this cathode ray tube sent is via this opening; And
Cooling fluid is flow in this chamber.
10. the light source module manufacture method according to claim 9 is characterized in that the step that forms this light shield layer comprises:
Dry powder is provided;
Should be attached to surface within this heat-dissipating cavity by the drying powder;
Heat this drying powder, this powder is melted to form this light shield layer.
11. the light source module manufacture method according to claim 10 is characterized in that also comprising forming adhesion layer on surface within this heat-dissipating cavity should the drying powder being attached within this heat-dissipating cavity before the surface.
12. the light source module manufacture method according to claim 11 is characterized in that this adhesion layer is a resin.
13. the light source module manufacture method according to claim 10 is characterized in that providing comprising in the step of dry powder the dry powder that has electric charge being provided.
14. the light source module manufacture method according to claim 9, the material that it is characterized in that this light shield layer is a dark material.
15. the light source module manufacture method according to claim 9, the material that it is characterized in that this light shield layer is a trbasic zinc phosphate.
16. the light source module manufacture method according to claim 9 is characterized in that also comprising formation protective layer surface outside this heat-dissipating cavity.
17. the light source module according to claim 16 is characterized in that this protective layer is an antirust coat.
18. the light source module according to claim 9 is characterized in that this blooming piece is the projection eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510127714 CN1979745A (en) | 2005-12-02 | 2005-12-02 | Light-source module and mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510127714 CN1979745A (en) | 2005-12-02 | 2005-12-02 | Light-source module and mfg. method |
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| Publication Number | Publication Date |
|---|---|
| CN1979745A true CN1979745A (en) | 2007-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510127714 Pending CN1979745A (en) | 2005-12-02 | 2005-12-02 | Light-source module and mfg. method |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511158B (en) * | 2008-02-14 | 2011-04-20 | 瑞鼎科技股份有限公司 | Radiating module and electronic device using the same |
-
2005
- 2005-12-02 CN CN 200510127714 patent/CN1979745A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101511158B (en) * | 2008-02-14 | 2011-04-20 | 瑞鼎科技股份有限公司 | Radiating module and electronic device using the same |
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Open date: 20070613 |