CN206877008U - A kind of backlight module and liquid crystal module - Google Patents

A kind of backlight module and liquid crystal module Download PDF

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Publication number
CN206877008U
CN206877008U CN201720885015.XU CN201720885015U CN206877008U CN 206877008 U CN206877008 U CN 206877008U CN 201720885015 U CN201720885015 U CN 201720885015U CN 206877008 U CN206877008 U CN 206877008U
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CN
China
Prior art keywords
heat
metal frame
backlight module
lamp bar
conducting pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201720885015.XU
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Chinese (zh)
Inventor
付常露
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truly Semiconductors Ltd
Original Assignee
Truly Semiconductors Ltd
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Filing date
Publication date
Application filed by Truly Semiconductors Ltd filed Critical Truly Semiconductors Ltd
Priority to CN201720885015.XU priority Critical patent/CN206877008U/en
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Publication of CN206877008U publication Critical patent/CN206877008U/en
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Abstract

The utility model discloses a kind of backlight module and liquid crystal module.The backlight module includes metal frame, the light guide plate being arranged in the metal frame, the lamp bar for being arranged on the light guide plate incidence surface;Also include heat conducting pipe, its heat absorbing end is arranged on the metal frame and on the side inner side of the lamp bar homonymy, its radiating end is extended on the inside of the metal frame side adjacent or relative with the lamp bar;The lamp bar is arranged in the heat absorbing end of the heat conducting pipe;Extended on the radiating end of the heat conducting pipe covered with heat-conducting layer, the heat-conducting layer on the inside bottom surface of the metal frame.The backlight module can improve its area of dissipation, its internal heat is distributed more uniform, be advantageous to improve integral heat sink efficiency.

Description

A kind of backlight module and liquid crystal module
Technical field
It the utility model is related to field of backlights, more particularly to a kind of backlight module and liquid crystal module.
Background technology
A kind of backlight is disclosed in the patent document that a Authorization Notice No. is CN206002813U, the backlight exists Heat conducting pipe is internally provided with, lamp bar is pasted onto in the heat absorbing end of heat conducting pipe, is entered using the circulation cooling performance inside heat conducting pipe Row radiating, but the internal structure of backlight and the structure of radiating tube itself are limited by, the radiating end of heat conducting pipe can not be made Very big, the area of dissipation that this allows for the radiating end of heat conducting pipe is limited.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of backlight module and liquid crystal module.The back of the body Optical module can improve its area of dissipation, its internal heat is distributed more uniform, be advantageous to improve integral heat sink efficiency.
Technical problem to be solved in the utility model is achieved by the following technical programs:
A kind of backlight module, including metal frame, be arranged in the metal frame light guide plate, be arranged on the light guide plate and enter The lamp bar of smooth surface;Also including heat conducting pipe, its heat absorbing end is arranged on the side inner side of the metal frame and the lamp bar homonymy, its Inner side extension of the radiating end along the metal frame;The lamp bar is arranged in the heat absorbing end of the heat conducting pipe;The heat conducting pipe Extended on radiating end covered with heat-conducting layer, the heat-conducting layer on the inside bottom surface of the metal frame.
Further, the heat-conducting layer is one kind in graphite flake, nano-sized carbon, nano aluminum.
Further, the boiling temperature of the coolant in the heat conducting pipe is not less than 65 DEG C.
Further, an at least optical film is provided with the exiting surface of the light guide plate.
Further, side of the light guide plate away from exiting surface is provided with reflector plate.
Further, glue frame, the glue frame and the lamp bar homonymy are additionally provided between the metal frame and light guide plate Lamp bar groove is offered on side.
Further, it is provided with anti-dazzling screen on the glue frame.
A kind of liquid crystal module, including above-mentioned backlight module.
The utility model has the advantages that:The backlight module covers heat conduction on the radiating end of the heat conducting pipe Layer, the heat-conducting layer are extended on the bottom surface of the metal frame, are distributed the radiating end of the heat conducting pipe using the heat-conducting layer Heat out is quickly transmitted on the bottom surface of the whole metal frame, equivalent to the area of dissipation for improving the heat conducting pipe, And internal heat is distributed more uniform, be advantageous to improve integral heat sink efficiency.
Brief description of the drawings
Fig. 1 is the exploded view of backlight module provided by the utility model;
Fig. 2 is the schematic diagram of the metal frame of backlight module shown in Fig. 1, heat conducting pipe and heat-conducting layer.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Embodiment one
As illustrated in fig. 1 and 2, a kind of backlight module, including metal frame 1, be arranged in the metal frame 1 light guide plate 2, set Put the lamp bar 3 in the incidence surface of light guide plate 2;Also include heat conducting pipe 4, its heat absorbing end 41 be arranged on the metal frame 1 with it is described On on the inside of the side of the homonymy of lamp bar 3, inner side extension of its radiating end 42 along the metal frame 1;The lamp bar 3 is arranged on described lead In the heat absorbing end 41 of heat pipe 4;Covered with heat-conducting layer 5 on the radiating end 42 of the heat conducting pipe 4, the heat-conducting layer 5 extends to described On the inside bottom surface of metal frame 1.
The backlight module covers heat-conducting layer 5 on the radiating end 42 of the heat conducting pipe 4, and the heat-conducting layer 5 extends to described On the bottom surface of metal frame 1, the heat that the radiating end 42 of the heat conducting pipe 4 comes out quickly is conducted using the heat-conducting layer 5 Onto the bottom surface of the whole metal frame 1, equivalent to the area of dissipation for improving the heat conducting pipe 4, and internal heat is distributed Must be more uniform, be advantageous to improve integral heat sink efficiency.
The heat conducting pipe 4 can be fixed on by way of heat-conducting glue or sticking double faced adhesive tape on the inner side of the metal frame 1, or Person is directly anchored on the inner side of the metal frame 1 using welding manner;The radiating end 42 of the heat conducting pipe 4 can extend to institute State on metal frame 1 bottom surface or side adjacent or relative with the lamp bar 3, radiating end 42 there can be one there can also be two; The lamp bar 3 includes wiring board and some luminescent devices being arranged on the wiring board, and the wiring board is away from described some The one side of luminescent device is pasted onto on the radiating end 42 of the heat conducting pipe 4.
One kind that the heat-conducting layer 5 includes but is not limited in graphite flake, nano-sized carbon, nano aluminum.
The boiling temperature of coolant in the heat conducting pipe 4 is not less than 65 DEG C, and the boiling temperature of coolant is directly connected to The heat dispersion of the heat conducting pipe 4, the boiling temperature of the coolant in general heat conducting pipe 4 is at 40 DEG C or so, for some needs For the liquid crystal display die set used under the high temperature conditions, the temperature of the lamp bar 3 has met or exceeded 125 DEG C, and extraneous The temperature of environment is also above 40 DEG C, if the boiling temperature of coolant is too low, coolant all vaporizes, and can not be by radiating The radiating of end 42 and liquefied mode reaches optimal heat dispersion.
The boiling temperature of coolant in the heat conducting pipe 4 is set to be not less than 65 DEG C, not only can be by the radiating of heat conducting pipe 4 Performance performs to maximum, backlight is applied to hot environment.
It is provided with an at least optical film 8 on the exiting surface of the light guide plate 2, in the present embodiment, the light extraction of the light guide plate 2 Diffusion barrier, lower bright enhancement film and upper bright enhancement film are disposed with face, the number amount and type of the optical film 8 should be according to actual conditions Depending on, should not be as limit;The one side of the light guide plate 2 away from exiting surface is provided with reflector plate 7.
Glue frame 6, the side of the glue frame 6 and the homonymy of lamp bar 3 are additionally provided between the metal frame 1 and light guide plate 2 On offer lamp bar groove, for accommodating the lamp bar 3, and can be opened on the radiating tube position corresponding to the heat conducting pipe 4 If corrugated heat pipe, for accommodating the radiating end 42 of the heat conducting pipe 4;Anti-dazzling screen 9 is provided with the glue frame 6.
Embodiment two
A kind of liquid crystal module, including the backlight module described in embodiment one.
Embodiment described above only expresses embodiment of the present utility model, and its description is more specific and detailed, but simultaneously Therefore the limitation to the utility model patent scope can not be interpreted as, as long as using equivalent substitution or the form of equivalent transformation institute The technical scheme of acquisition, it all should fall within the scope of protection of the utility model.

Claims (8)

1. a kind of backlight module, including metal frame, be arranged in the metal frame light guide plate, be arranged on the light guide plate and enter light The lamp bar in face;Also include heat conducting pipe, its heat absorbing end is arranged on the metal frame and on the side inner side of the lamp bar homonymy, it dissipates Inner side extension of the hot junction along the metal frame;The lamp bar is arranged in the heat absorbing end of the heat conducting pipe;It is characterized in that:It is described Extended on the radiating end of heat conducting pipe covered with heat-conducting layer, the heat-conducting layer on the inside bottom surface of the metal frame.
2. backlight module according to claim 1, it is characterised in that:The heat-conducting layer is graphite flake, nano-sized carbon, nano aluminum In one kind.
3. backlight module according to claim 1, it is characterised in that:The boiling temperature of coolant in the heat conducting pipe is not Less than 65 DEG C.
4. backlight module according to claim 1, it is characterised in that:At least one is provided with the exiting surface of the light guide plate Optical film.
5. backlight module according to claim 1, it is characterised in that:Side of the light guide plate away from exiting surface is provided with Reflector plate.
6. backlight module according to claim 1, it is characterised in that:Glue is additionally provided between the metal frame and light guide plate Frame, the glue frame on the side of the lamp bar homonymy with offering lamp bar groove.
7. backlight module according to claim 6, it is characterised in that:Anti-dazzling screen is provided with the glue frame.
A kind of 8. liquid crystal module, it is characterised in that:Including any described backlight module in claim 1-7.
CN201720885015.XU 2017-07-20 2017-07-20 A kind of backlight module and liquid crystal module Active CN206877008U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720885015.XU CN206877008U (en) 2017-07-20 2017-07-20 A kind of backlight module and liquid crystal module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720885015.XU CN206877008U (en) 2017-07-20 2017-07-20 A kind of backlight module and liquid crystal module

Publications (1)

Publication Number Publication Date
CN206877008U true CN206877008U (en) 2018-01-12

Family

ID=61330449

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720885015.XU Active CN206877008U (en) 2017-07-20 2017-07-20 A kind of backlight module and liquid crystal module

Country Status (1)

Country Link
CN (1) CN206877008U (en)

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