CN213634062U - Backlight module of liquid crystal display - Google Patents
Backlight module of liquid crystal display Download PDFInfo
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- CN213634062U CN213634062U CN202023060917.0U CN202023060917U CN213634062U CN 213634062 U CN213634062 U CN 213634062U CN 202023060917 U CN202023060917 U CN 202023060917U CN 213634062 U CN213634062 U CN 213634062U
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Abstract
The utility model discloses a belong to display screen backlight module technical field, specifically be a liquid crystal display backlight module, including display screen backplate, temperature-sensing device and air cooling device, display screen backplate bottom fixed mounting temperature-sensing device, the temperature-sensing device inboard is equipped with air cooling device, display screen backplate inner wall fixed mounting graphite alkene layer, graphite alkene layer inner wall fixed connection copper foil layer one, the connection silvered film is electroplated at copper foil layer one top, a copper foil layer bottom fixed connection conducting strip, conducting strip bottom fixed connection conducting wire, conducting wire tip fixed connection copper foil layer two, fill the heat conduction silica gel obturator between copper foil layer two and the copper foil layer one, heat conduction silica gel obturator thickness is not less than three centimetres, the beneficial effects of the utility model are that: set up graphite alkene layer and closely laminate in display screen backplate bottom to in time come out the temperature transmission of display screen backplate bottom, thereby effectively reduce the temperature of display screen.
Description
Technical Field
The utility model relates to a display screen backlight module technical field, concretely relates to LCD backlight module.
Background
Liquid crystal, i.e. liquid crystal, is a very special substance that flows like liquid and has some optical properties of crystal, and in 1888, liquid crystal was found by Reinitzer, austria phytologist, to be an organic compound between solid and liquid with regular molecular arrangement, the arrangement of liquid crystal molecules has a certain order, and this order is very sensitive to changes in external conditions, such as temperature, electromagnetic field. Under the action of an electric field, the arrangement of liquid crystal molecules can be changed, so that the optical property of the liquid crystal molecules is influenced, the phenomenon is called an electro-optic effect, the liquid crystal display device is widely applied, the application range is as large as satellite monitoring, the application range is as small as VCD, the body shadow of the liquid crystal display device is ubiquitous in the modern society, the structure of the liquid crystal display device is generally a circular base and a machine body, and along with the continuous development of a color display technology, displays in other shapes appear at present, but the application range is not large.
The prior art has the following defects: the existing display screen is easy to generate a large amount of heat because the screen is larger and the power is higher and higher, and the service life of the display screen is influenced because the heat dissipation structure is not perfect enough and the temperature of the screen is too high frequently.
Therefore, it is necessary to invent a backlight module of a liquid crystal display.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a LCD backlight module uses through setting up graphite alkene layer and the cooperation of copper foil layer, in time transmits the temperature at the display screen back to copper foil layer two, simultaneously through filling the heat conduction silica gel obturator, conveniently dispels the heat to the display screen to solve the long-time use of display screen and also can in time radiating problem.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a LCD backlight module, includes display screen backplate, temperature-sensing device and air cooling device, display screen backplate bottom fixed mounting temperature-sensing device, the temperature-sensing device inboard is equipped with the air cooling device, display screen backplate inner wall fixed mounting graphite alkene layer, graphite alkene layer inner wall fixed connection copper foil layer one, the connection silvered film is electroplated at copper foil layer one top, a copper foil layer bottom fixed connection conducting strip, conducting strip bottom fixed connection conducting wire, conducting wire tip fixed connection copper foil layer two, fill the heat conduction silica gel obturator between copper foil layer two and the copper foil layer one, heat conduction silica gel obturator thickness is not less than three centimetres.
Preferably, the graphene layer and the display screen back plate are fixedly bonded through an adhesive tape layer.
Preferably, the heat conducting fins are round, and the heat conducting fins are uniformly distributed at the bottom of the copper foil layer.
Preferably, the temperature sensing device comprises a probe, the probe is fixedly mounted at the two bottoms of the copper foil layer, the end part of the probe is electrically connected with a wire, the bottom part of the wire is electrically connected with a controller, and an information processor is arranged in the controller.
Preferably, the controller is fixedly installed on the inner wall of the installation frame, the probes are provided with four groups, and the probes are uniformly distributed on the inner wall of the copper foil layer.
Preferably, the air cooling device comprises a mounting rack, the mounting rack is fixedly mounted at the two bottoms of the copper foil layer, the heat dissipation fans are fixedly mounted on the inner wall of the mounting rack, and the heat dissipation fans are uniformly distributed on the inner wall of the mounting rack.
The utility model has the advantages that:
1. the graphene layer is tightly attached to the bottom of the display screen backboard, so that the temperature of the bottom of the display screen backboard is timely transmitted out, the temperature of the display screen is effectively reduced, and meanwhile, the copper foil layer is fixedly connected to the bottom of the graphene layer and a silver coating is coated on one surface of the copper foil layer, so that the heat dissipation effect is improved;
2. through setting up temperature sensing device, thereby judge whether the temperature of display screen backplate is high through the change of inspection probe resistance with the probe installation in the bottom of copper foil layer one to adjust corresponding regional radiator fan and carry out the air-cooled work of pertinence, saved because the energy of cooling consumption improves cooling efficiency.
Drawings
Fig. 1 is a front view provided by the present invention;
fig. 2 is a bottom view of the copper foil layer provided by the present invention;
fig. 3 is a schematic structural view of the temperature sensing device provided by the present invention;
fig. 4 is a schematic view of the second connection of the copper foil layer provided by the present invention.
In the figure: the display screen comprises a display screen back plate 100, a graphene layer 110, a first copper foil layer 120, a silver plating layer 121, a heat conducting sheet 122, a heat conducting wire 130, a second copper foil layer 140, a heat conducting silica gel filling body 150, a temperature sensing device 200, a controller 210, a conducting wire 220, a probe 230, an air cooling device 300, a mounting frame 310 and a cooling fan 320.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to fig. 1-4, the utility model provides a liquid crystal display backlight module, including display screen backplate 100, temperature-sensing device 200 and air cooling device 300, it is specific, display screen backplate 100 bottom fixed mounting temperature-sensing device 200, temperature-sensing device 200 inboard is equipped with air cooling device 300, display screen backplate 100 inner wall fixed mounting graphite layer 110, graphite layer 110 inner wall fixed connection copper foil layer 120, copper foil layer 120 top is electroplated and is connected silvered layer 121, copper foil layer 120 bottom fixed connection conducting strip 122, conducting strip 122 bottom fixed connection conducting wire 130, conducting wire 130 tip fixed connection copper foil layer two 140, fill heat conduction silica gel obturator 150 between copper foil layer two 140 and copper foil layer one 120, heat conduction obturator 150 thickness is not less than three centimetres;
the display screen backboard 100 has the effect of installing a display screen, the temperature sensing device 200 has the effect of detecting the temperature of the back face of the display screen backboard 100, the air cooling device 300 has the effect of blowing air to dissipate heat of the surface of the copper foil layer II 140 in an air cooling mode, the graphene layer 110 has the effect of accelerating the heat dissipation of the display screen, graphene has very good heat conduction performance, the heat conduction coefficient of pure defect-free single-layer graphene is as high as 5300W/mK, the graphene layer is a carbon material with the highest heat conduction coefficient, the carbon material is higher than 3500W/mK of a single-walled carbon nanotube and 3000W/mK of a multi-walled carbon nanotube, the copper foil layer I120 has the effect of accelerating the heat dissipation of the display screen, copper foil has the characteristic of low surface oxygen, can be attached to various different base materials, such as metal. The conductive copper foil is mainly applied to electromagnetic shielding and antistatic, the conductive copper foil is arranged on the bottom surface of a substrate and is combined with a metal base material, so that the conductive copper foil has excellent conductivity and provides an electromagnetic shielding effect, the copper foil layer has a high heat-conducting performance and a high heat-radiating speed, and can prevent other external electromagnetic signals from influencing the work of a display screen when in use;
further, the graphene layer 110 and the display screen back panel 100 are fixedly bonded through an adhesive tape layer;
further, the heat conducting sheet 122 is circular, specifically, the heat conducting sheet 122 is uniformly distributed at the bottom of the first copper foil layer 120, and the heat conducting sheet 122 has an effect of transferring the temperature of the back of the display screen to the second copper foil layer 140 for heat dissipation;
further, the temperature sensing device 200 includes a probe 230, specifically, the probe 230 is fixedly installed at the bottom of the second copper foil layer 140, the end of the probe 230 is electrically connected to the wire 220, the bottom of the wire 220 is electrically connected to the controller 210, an information processor is arranged inside the controller 210, the probe 230 has an effect of detecting the temperature of the display screen backboard 100, after being heated, the resistance of the probe 230 becomes large, so as to drive the cooling fan 320 at the bottom of the corresponding area to perform cooling, and automatically adjust the rotating speed of the cooling fan 320 according to the temperature, the controller 210 has a function of detecting the resistance change of the probe 230, so as to determine the heat change of the local position of the back of the display screen backboard 100, so as to control the air cooling device 300 to perform air cooling;
further, the controller 210 is fixedly installed on the inner wall of the mounting frame 310, specifically, four sets of the probes 230 are provided, and the probes 230 are uniformly distributed on the inner wall of the first copper foil layer 120;
further, the air cooling device 300 includes a mounting rack 310, specifically, the mounting rack 310 is fixedly mounted at the bottom of the second copper foil layer 140, the heat dissipation fan 320 is fixedly mounted on the inner wall of the mounting rack 310, the heat dissipation fan 320 is uniformly distributed on the inner wall of the mounting rack 310, and the heat dissipation fan 320 has a function of rotating to dissipate heat at the bottom of the second copper foil layer 140.
The utility model discloses a use as follows: when using the utility model discloses the time technical personnel in the art are through with graphite alkene layer 110 fixed mounting in display screen backplate 100 bottom, then electroplate silvered film 121 with copper foil layer 120 top, then bond copper foil layer 120 in the bottom of graphite alkene layer 110, then bond conducting strip 122 in the bottom of copper foil layer 120, install probe 230 in the bottom of copper foil layer 120, then pack heat conduction silica gel obturator 150 between copper foil layer 120 and copper foil layer two 140, again with mounting bracket 310 fixed mounting at the outer wall of copper foil layer two 140, install the inner wall at mounting bracket 310 with controller 210, when the display screen during operation, the heat passes through graphite alkene layer 110, copper foil layer one 120, silvered film 121, conducting strip 122, conducting wire 130, and heat conduction silica gel obturator 150 transmit to copper foil layer two 140, will carry out the forced air cooling through radiator fan 320 at last.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. The utility model provides a LCD backlight module, includes display screen backplate (100), temperature-sensing device (200) and forced air cooling device (300), its characterized in that: display screen backplate (100) bottom fixed mounting temperature-sensing device (200), temperature-sensing device (200) inboard is equipped with air-cooling device (300), display screen backplate (100) inner wall fixed mounting graphite alkene layer (110), graphite alkene layer (110) inner wall fixed connection copper foil layer (120), connection silvered film (121) is electroplated at copper foil layer (120) top, copper foil layer (120) bottom fixed connection conducting strip (122), conducting strip (122) bottom fixed connection conducting wire (130), conducting wire (130) tip fixed connection copper foil layer two (140), fill heat conduction silica gel obturator (150) between copper foil layer two (140) and copper foil layer (120), heat conduction silica gel obturator (150) thickness is not less than three centimetres.
2. The backlight module of claim 1, wherein: the graphene layer (110) and the display screen back plate (100) are fixedly bonded through an adhesive tape layer.
3. The backlight module of claim 1, wherein: the heat conducting fins (122) are arranged in a circular shape, and the heat conducting fins (122) are uniformly distributed at the bottom of the first copper foil layer (120).
4. The backlight module of claim 1, wherein: the temperature sensing device (200) comprises a probe (230), the probe (230) is fixedly installed at the bottom of the copper foil layer II (140), the end part of the probe (230) is electrically connected with a lead (220), the bottom of the lead (220) is electrically connected with a controller (210), and an information processor is arranged inside the controller (210).
5. The backlight module of claim 4, wherein: the controller (210) is fixedly installed on the inner wall of the installation frame (310), four groups of probes (230) are arranged, and the probes (230) are uniformly distributed on the inner wall of the first copper foil layer (120).
6. The backlight module of claim 1, wherein: the air cooling device (300) comprises a mounting rack (310), wherein the mounting rack (310) is fixedly mounted at the bottom of the copper foil layer II (140), the inner wall of the mounting rack (310) is fixedly provided with a heat dissipation fan (320), and the heat dissipation fan (320) is uniformly distributed on the inner wall of the mounting rack (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023060917.0U CN213634062U (en) | 2020-12-17 | 2020-12-17 | Backlight module of liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023060917.0U CN213634062U (en) | 2020-12-17 | 2020-12-17 | Backlight module of liquid crystal display |
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| CN213634062U true CN213634062U (en) | 2021-07-06 |
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| CN202023060917.0U Active CN213634062U (en) | 2020-12-17 | 2020-12-17 | Backlight module of liquid crystal display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645330A (en) * | 2021-07-08 | 2021-11-12 | 深圳市海思通光电科技有限公司 | A high-efficient heat dissipation type liquid crystal display for smart mobile phone |
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2020
- 2020-12-17 CN CN202023060917.0U patent/CN213634062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645330A (en) * | 2021-07-08 | 2021-11-12 | 深圳市海思通光电科技有限公司 | A high-efficient heat dissipation type liquid crystal display for smart mobile phone |
| CN113645330B (en) * | 2021-07-08 | 2022-06-24 | 深圳市海思通光电科技有限公司 | Heat dissipation type liquid crystal display screen for smart phone |
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