CN206002813U - A kind of backlight and liquid crystal display module - Google Patents
A kind of backlight and liquid crystal display module Download PDFInfo
- Publication number
- CN206002813U CN206002813U CN201621049613.5U CN201621049613U CN206002813U CN 206002813 U CN206002813 U CN 206002813U CN 201621049613 U CN201621049613 U CN 201621049613U CN 206002813 U CN206002813 U CN 206002813U
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- China
- Prior art keywords
- backlight
- heat pipe
- metal frame
- fpc
- frame
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Abstract
The utility model discloses a kind of backlight and liquid crystal display module.The backlight includes metal frame, the glue frame being arranged in the metal frame, the light guide plate being arranged in the glue frame；The some through holes on the corresponding side of the glue frame are provided with some luminescent devices between the wherein one side of the metal frame and the incidence surface of the light guide plate；Some luminescent devices are connected with FPC, the FPC and the side of some luminescent devices are provided with heat pipe.The backlight arranges heat pipe on the FPC of luminescent device, and using the circulation cooling performance of heat pipe, the heat produced when working to luminescent device radiates.
Description
Technical field
The utility model is related to field of liquid crystal display, more particularly to a kind of backlight and liquid crystal display module.
Background technology
With flourishing for auto industry, Ou Xi depot requires more and more higher to car-mounted display product in terms of brightness,
This allows for the LED quantity of vehicle-mounted backlight and power consumption is continuously increased, and causes backlight source temperature to steeply rise；And the photoelectricity of LED
Conversion ratio is relatively low, has a large amount of electric energy and be converted into heat energy during work, if heat can not be distributed in time, can cause LED chip temperature
Height is spent, so as to affect service life, luminous efficiency and the stability of LED；Meanwhile, too high temperature can also make the electricity of liquid crystal display
Optical property changes, and affects the use of whole product.So, how to improve heat-sinking capability is that LED backlight is urgently to be resolved hurrily
One of key technology.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of backlight and liquid crystal display module.Should
Backlight arranges heat pipe on the FPC of luminescent device, using the circulation cooling performance of heat pipe, produces when working to luminescent device
Raw heat is radiated.
Technical problem to be solved in the utility model is achieved by the following technical programs：
A kind of backlight, including metal frame, the glue frame being arranged in the metal frame, the leaded light being arranged in the glue frame
Plate；By on the corresponding side of the glue frame between the wherein one side of the metal frame and the incidence surface of the light guide plate
Some through holes be provided with some luminescent devices；Some luminescent devices are connected with FPC, and the FPC is away from described some
The side of optical device is provided with heat pipe.
Further, the heat absorbing end of the heat pipe is arranged between the FPC and the side of metal frame, the heat pipe
Radiating end be arranged on the edge in the metal frame.
Further, the boiling temperature of the coolant in the heat pipe is not less than 65 DEG C.
Further, an at least blooming is provided with the exiting surface of the light guide plate.
Further, the light guide plate is provided with reflector plate away from the side of exiting surface.
Further, anti-dazzling screen is provided with the glue frame.
Further, some luminescent devices are LED.
A kind of liquid crystal display module, including above-mentioned backlight.
The utility model has the advantages that：
（1）The backlight arranges heat pipe on the FPC of luminescent device, using the circulation cooling performance of heat pipe, to sending out
The heat that optical device is produced when working is radiated；
（2）Heat pipe is arranged in the space between metal frame and glue frame, can farthest save space, prevent institute
The inner space that heat pipe takes backlight too much is stated, in order to avoid the internal structure of backlight is had influence on, the metal frame also may be used
To play a protective role to the heat pipe
（3）The boiling temperature of coolant is not less than 65 DEG C, the heat dispersion of heat pipe not only can be performed to maximum,
Backlight is made to be applied to hot environment.
Description of the drawings
The exploded view of the backlight that Fig. 1 is provided for the utility model；
The position view of the metal frame of the backlight that Fig. 2 is provided for the utility model, luminescent device, FPC and heat pipe.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in detail.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of backlight, including metal frame 1, the glue frame 2 being arranged in the metal frame 1, is arranged on
Light guide plate 2 in the glue frame 2, the metal frame 1 include a bottom surface and four sides, and the glue frame 2 includes a bottom surface
With four sides；By the phase of the glue frame 2 between the wherein one side of the metal frame 1 and the incidence surface of the light guide plate 3
Some through holes on corresponding side are provided with some luminescent devices 4；Some luminescent devices 4 are connected with FPC 5, described
FPC 5 is provided with heat pipe 6 away from the side of some luminescent devices 4.
Heat pipe 6 is a kind of cycle cooling system of high heat conduction, and its thermal conductivity is 200 times of copper.Heat pipe 6 is one in itself
Individual closed tubular container, generally strip tube shape, pipe are processed and make which built with a little coolant, the inwall application technology of pipe
It is formed with capillary structure.After the heat absorbing end of heat pipe 6 absorbs heat, the coolant in pipe is heated and reaches boiling point and vaporize, high temperature
Gas is moved towards the radiating end of heat pipe 6, after heat is discharged by radiating end, is liquefied as again liquid and is attached to leading
On the inwall of heat pipe 6, coolant flows back to again the heat absorption of heat pipe 6 further according to capillary principle along the capillary structure on inwall
End, so goes round and begins again, and forms a cycle cooling system.
The backlight of the technical program arranges heat pipe 6 at the back side of the FPC 5, can be effectively by described some
The heat that optical device 4 is operationally produced is distributed through the FPC 5 and heat pipe 6, reduces the temperature in backlight.
The heat absorbing end of the heat pipe 6 is arranged between the side of the FPC 5 and metal frame 1, the heat pipe 6 dissipate
Hot junction is arranged on the edge in the metal frame 1.
Heat pipe 6 in the present embodiment is the structure of U-shaped like, is heat absorbing end in the middle of which, and two ends are radiating end, will be described
Heat absorbing end in the middle of heat pipe 6 is arranged on the FPC 5, and is fitted on the side of the metal frame 1；The radiating end at two ends
Along the both sides of the edge distribution adjacent with the FPC 5 on the bottom surface of the metal frame 1, it is of course also possible to along the gold
Adjacent with the FPC 5 two side distributions on category frame 1.By the heat pipe 6 be arranged on the metal frame 1 and glue frame 2 it
Between space in, if necessary, the glue frame 2 can open up holding tank on the position corresponding with the radiating end of the heat pipe 6,
For placing and accommodating the radiating end of the heat pipe 6, can farthest save space, prevent the heat pipe 6 excessive
Ground takes the inner space of backlight, in order to avoid have influence on the internal structure of backlight；The metal frame 1 can also be to the heat conduction
Pipe 6 plays a protective role.
The boiling temperature of the coolant in the heat pipe 6 is not less than 65 DEG C, and the boiling temperature of coolant is directly connected to
The heat dispersion of the heat pipe 6, the boiling temperature of the coolant in general heat pipe 6 are needed for some at 40 DEG C or so
For the liquid crystal display module for using under the high temperature conditions, the temperature of some luminescent devices 4 has met or exceeded 125
DEG C, and the temperature of external environment, also above 40 DEG C, if the boiling temperature of coolant is too low, coolant is all vaporized, and cannot
Optimal heat dispersion is reached by way of radiating and liquefying in radiating end.
The boiling temperature of coolant is set to be not less than 65 DEG C by the technical program, not only can be by the thermal diffusivity of heat pipe 6
Maximum can be performed to, also makes backlight be applied to hot environment.
Be provided with an at least blooming 7 on the exiting surface of the light guide plate 2, in the present embodiment, the light guide plate 2 go out light
Diffusion barrier 71, lower bright enhancement film 72 and upper bright enhancement film 73 is provided with face, and the quantity of blooming 7 and type should be according to actual conditions
Fixed, should not be limited with the present embodiment.
The light guide plate 2 is provided with reflector plate 8 away from the side of exiting surface；Anti-dazzling screen 9 is provided with the glue frame 2.
Embodiment 2
A kind of liquid crystal display module, including the backlight described in embodiment 1.
Embodiment described above only have expressed embodiment of the present utility model, and its description is more concrete and detailed, but simultaneously
The restriction that therefore can not be interpreted as to the utility model the scope of the claims, as long as institute in the form of the equivalent or equivalent transformation
The technical scheme of acquisition, all should fall within protection domain of the present utility model.
Claims (8)
1. a kind of backlight, it is characterised in that including metal frame, the glue frame being arranged in the metal frame, be arranged on the glue
Light guide plate in frame；By the relative of the glue frame between the wherein one side of the metal frame and the incidence surface of the light guide plate
Some through holes on the side that answers are provided with some luminescent devices；Some luminescent devices are connected with FPC, the FPC away from
The side of some luminescent devices is provided with heat pipe.
2. backlight according to claim 1, it is characterised in that the heat absorbing end of the heat pipe be arranged on the FPC and
Between the side of metal frame, the radiating end of the heat pipe is arranged on the edge in the metal frame.
3. backlight according to claim 1, it is characterised in that the boiling temperature of the coolant in the heat pipe is not low
In 65 DEG C.
4. backlight according to claim 1, it is characterised in that be provided with an at least light on the exiting surface of the light guide plate
Learn film.
5. backlight according to claim 1, it is characterised in that the light guide plate is provided with instead away from the side of exiting surface
Penetrate piece.
6. backlight according to claim 1, it is characterised in that be provided with anti-dazzling screen on the glue frame.
7. backlight according to claim 1, it is characterised in that some luminescent devices are LED.
8. a kind of liquid crystal display module, it is characterised in that including arbitrary described backlight in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049613.5U CN206002813U (en) | 2016-09-12 | 2016-09-12 | A kind of backlight and liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049613.5U CN206002813U (en) | 2016-09-12 | 2016-09-12 | A kind of backlight and liquid crystal display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206002813U true CN206002813U (en) | 2017-03-08 |
Family
ID=58193117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621049613.5U Active CN206002813U (en) | 2016-09-12 | 2016-09-12 | A kind of backlight and liquid crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206002813U (en) |
-
2016
- 2016-09-12 CN CN201621049613.5U patent/CN206002813U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |