CN107037631A - Liquid crystal display and its backlight module - Google Patents
Liquid crystal display and its backlight module Download PDFInfo
- Publication number
- CN107037631A CN107037631A CN201611095970.XA CN201611095970A CN107037631A CN 107037631 A CN107037631 A CN 107037631A CN 201611095970 A CN201611095970 A CN 201611095970A CN 107037631 A CN107037631 A CN 107037631A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- heat sink
- light source
- source assembly
- incidence surface
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000010410 layer Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of liquid crystal display and its backlight module, the backlight module includes backboard, the light guide plate on the backboard and the light source assembly located at the incidence surface side of the light guide plate, the backlight module also includes the heat sink located at the incidence surface side, the light source assembly is installed on the heat sink and positioned between the heat sink and the incidence surface, the heat sink is provided with the hollow cavity close to the light source assembly.Liquid crystal display and its backlight module that the present invention is provided, heat need not can be conducted to heat sink by conducting resinl, and heat sink is again discharged heat by the hollow cavity, so as to improve radiating effect, heat radiation performance.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of liquid crystal display and its backlight module.
Background technology
With the development of lcd technology, liquid crystal display has obtained increasingly being widely applied.Liquid crystal display utensil
Have the advantages that fuselage is thin, low in energy consumption, radiationless, brightness is high.Wherein, brightness turns into the key factor of influence LCD product quality,
, such as, using HDR technical requirements brightness in more than 1000nits due to the brightness more and more higher of current backlight module requirement
Reach that the brightness needs to carry out high current driving to LED, still, high current driving will cause LED temperature to steeply rise, because
This is, it is necessary to seek a kind of efficient heat dissipating method.
The content of the invention
In order to solve the deficiencies in the prior art, the present invention proposes a kind of liquid crystal display and its backlight module, Neng Gouti
Rise the radiating effect of light source.
Concrete technical scheme proposed by the present invention is：A kind of backlight module is provided, including backboard, on the backboard
Light guide plate and the light source assembly located at the incidence surface side of the light guide plate, the backlight module also include being located at the incidence surface side
Heat sink, the light source assembly is installed on the heat sink and positioned between the heat sink and the incidence surface, described
Heat sink is provided with the hollow cavity close to the light source assembly.
Further, the heat sink includes the fixed part being located on the backboard and bends extension by the fixed part
Installation portion, the hollow cavity is located on the installation portion, and the light source assembly is installed in the installation portion and enters light described in
The side in face.
Further, the backlight module also includes the auxiliary heat dissipation plate for being fixed on the light source assembly surface, described auxiliary
Heat sink is helped to be located between the light source assembly and the incidence surface.
Further, the auxiliary heat dissipation plate includes the horizontal part being located on the backboard and prolonged by horizontal part bending
The vertical component effect stretched, the vertical position is between the light source assembly and the incidence surface.
Further, the material of the heat sink is insulating materials.
Further, the light source assembly includes line layer, protective layer and the LED set successively away from the heat sink
Bar.
Further, the material of the heat sink is metal.
Further, the light source assembly includes the insulating barrier, line layer, protective layer set successively away from the heat sink
And LED light bar.
Further, the hollow cavity is connected with liquid circulating apparatus, and the liquid circulating apparatus is used in being described
Cavity body provides the coolant of flowing.
Present invention also offers a kind of liquid crystal display, the liquid crystal display includes backlight module as described above.
Liquid crystal display and its backlight module that the present invention is provided, the backlight module include heat sink, the heat sink
Upper to be provided with hollow cavity close to the light source assembly, heat need not can be conducted to heat sink by conducting resinl, heat sink
Heat is discharged by the hollow cavity again, so as to improve radiating effect, heat radiation performance.
Brief description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the embodiment to the present invention, technical scheme will be made
And other beneficial effects are apparent.
Fig. 1 is the structural representation of backlight module in embodiment 1；
Fig. 2 is the structural representation of hollow cavity and liquid circulating apparatus；
Fig. 3 is the structural representation of backlight module in embodiment 2.
Embodiment
Hereinafter, with reference to the accompanying drawings to embodiments of the invention are described in detail.However, it is possible to come real in many different forms
Apply the present invention, and the specific embodiment of the invention that should not be construed as limited to illustrate here.It is opposite that there is provided these implementations
Example is in order to explain the principle and its practical application of the present invention, so that others skilled in the art are it will be appreciated that the present invention
Various embodiments and be suitable for the various modifications of specific intended application.In the accompanying drawings, identical label will be used for table all the time
Show identical element.
Embodiment 1
Reference picture 1, the liquid crystal display that the present embodiment is provided includes display module (figure is not marked) and backlight module, shows mould
Group is oppositely arranged with backlight module, and backlight module is used to provide light source for display module.
Specifically, backlight module includes backboard 11, light guide plate 12, light source assembly 13 and heat sink 14.Light guide plate 12 is located at
On backboard 11, light source assembly 13 and heat sink 14 are located at the incidence surface side of light guide plate 12, and light source assembly 13 is installed in heat sink 14
Go up and be located between heat sink 14 and incidence surface.The emergent ray of light source assembly 13 enters in light guide plate 12 from incidence surface.Radiating
Plate 14 is provided with the hollow cavity 14a close to light source assembly 13, and the heat that light source assembly 13 is produced directly is passed by heat sink 14
It is directed at hollow cavity 14a to be discharged, so as to improve the radiating effect of backlight module.
The material of heat sink 14 in the present embodiment is the metal with high thermal conductivity, for example, copper, aluminium etc., light source group
Part 13 includes insulating barrier 13a, line layer 13b, protective layer 13c and the LED light bar 13d set successively away from heat sink 14.Insulation
Layer 13a is used for isolation radiating plate 14 and line layer 13b.The heat of light source assembly 13 is conducted to heat sink 14 via insulating barrier 13a
On.
Heat sink 14 includes fixed part 14b and installation portion 14c, and fixed part 14b is located on backboard 11, and installation portion 14c is by solid
Determine portion 14b bending extensions to obtain, wherein, fixed part 14b is mutually perpendicular to installation portion 14c.Hollow cavity 14a is located at installation portion
On 14c, light source assembly 13 is installed in sides of the installation portion 14c towards incidence surface.Fixed part 14b is provided with screw, backboard 11
Corresponding screw also is provided with, fixed part 14b is fixedly connected with backboard 11 by screw 15.
For further improving radiating effect, backlight module also includes the auxiliary heat dissipation for being fixed on the surface of light source assembly 13
Plate 16, auxiliary heat dissipation plate 16 is located between light source assembly 13 and incidence surface.The heat of light source assembly 13 conducts via protective layer 13c
To auxiliary heat dissipation plate 16, light source assembly 13 is located in wherein and opposite from two respectively by heat sink 14 and auxiliary heat dissipation plate 16
Direction light source assembly 13 radiated.
Specifically, auxiliary heat dissipation plate 16 includes the horizontal part 16a being located on backboard 11 and bends extension by horizontal part 16a
Vertical component effect 16b.Fixed part 14b is located between horizontal part 16a and backboard 11, screw also is provided with horizontal part 16a and by screw
15 are fixedly connected with fixed part 14b and backboard 11 respectively.Vertical component effect 16b is located between light source assembly 13 and incidence surface.
Reference picture 2, hollow cavity 14a is also associated with liquid circulating apparatus 17, and liquid circulating apparatus 17 is used to be middle cavity
Body 14a provides the coolant of flowing.Liquid circulating apparatus 17 includes the pump housing and cooling body, and the pump housing can drive the stream of coolant
It is dynamic, the coolant with heat for flowing through hollow cavity 14a is discharged to cooling in cooling body, then by the coolant after cooling
It is injected into hollow cavity 14a.Wherein, coolant can be the coolants such as water or oil.
The backlight module that the present embodiment is provided includes heat sink 14, and heat sink 14 is provided with corresponding with light source assembly 13
Cavity body 14a, is radiated by hollow cavity 14a to light source assembly 13, heat need not can be conducted by conducting resinl to
On heat sink 14, meanwhile, backlight module also includes auxiliary heat dissipation plate 16, by heat sink 14 and auxiliary heat dissipation plate 16 opposite
Direction is radiated to light source assembly 13, improves radiating effect.In addition, hollow cavity 14a is also associated with liquid circulation
Device 17, further improves the radiating effect of backlight module 1.
Embodiment 2
Reference picture 3, the present embodiment is the further improvement to embodiment 1, and the present embodiment difference from Example 1 is
The material of heat sink 14 is the insulating materials with heat conductivility, for example, carborundum or aluminum oxide thermal conductive ceramic etc..Due to radiating
The material of plate 14 is that the light source assembly 13 in isolation material, the present embodiment only includes the line layer set successively away from heat sink 14
13b, protective layer 13c and LED light bar 13d.The heat of light source assembly 13 is conducted to heat sink 14 via line layer 13b.
Light source assembly 13 in the present embodiment does not need insulating barrier 13a, and therefore, the present embodiment is reduced relative to embodiment 1
Insulating barrier 13a thermal resistance, further increases heat dispersion.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of backlight module, including backboard (11), the light guide plate (12) on the backboard (11) and located at the leaded light
The light source assembly (13) of the incidence surface side of plate (12), it is characterised in that the backlight module also includes being located at the incidence surface side
Heat sink (14), the light source assembly (13) be installed on the heat sink (14) and positioned at the heat sink (14) with it is described
Between incidence surface, the heat sink (14) is provided with the hollow cavity (14a) close to the light source assembly (13).
2. backlight module according to claim 1, it is characterised in that the heat sink (14) includes being located at the backboard
(11) fixed part (14b) on and the installation portion (14c) by the fixed part (14b) bending extension, the hollow cavity (14a)
On the installation portion (14c), the light source assembly (13) is installed in the installation portion (14c) towards the one of the incidence surface
Side.
3. backlight module according to claim 1, it is characterised in that also including being fixed on the light source assembly (13) surface
Auxiliary heat dissipation plate (16), the auxiliary heat dissipation plate (16) be located between the light source assembly (13) and the incidence surface.
4. backlight module according to claim 3, it is characterised in that the auxiliary heat dissipation plate (16) includes being located at the back of the body
Horizontal part (16a) on plate (11) and the vertical component effect (16b) by the horizontal part (16a) bending extension, the vertical component effect (16b)
Between the light source assembly (13) and the incidence surface.
5. backlight module according to claim 1, it is characterised in that the material of the heat sink (14) is insulating materials.
6. backlight module according to claim 5, it is characterised in that the light source assembly (13) is included successively away from described
Line layer (13b), protective layer (13c) and LED light bar (13d) that heat sink (14) is set.
7. backlight module according to claim 1, it is characterised in that the material of the heat sink (14) is metal.
8. backlight module according to claim 7, it is characterised in that the light source assembly (13) is included successively away from described
Insulating barrier (13a), line layer (13b), protective layer (13c) and LED light bar (13d) that heat sink (14) is set.
9. the backlight module according to claim any one of 1-8, it is characterised in that the hollow cavity (14a) is connected with
Liquid circulating apparatus (17), the liquid circulating apparatus (17) is used for the coolant that flowing is provided for the hollow cavity (14a).
10. a kind of liquid crystal display, it is characterised in that including the backlight module as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095970.XA CN107037631A (en) | 2016-12-02 | 2016-12-02 | Liquid crystal display and its backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095970.XA CN107037631A (en) | 2016-12-02 | 2016-12-02 | Liquid crystal display and its backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107037631A true CN107037631A (en) | 2017-08-11 |
Family
ID=59530698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611095970.XA Pending CN107037631A (en) | 2016-12-02 | 2016-12-02 | Liquid crystal display and its backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107037631A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544179A (en) * | 2017-09-07 | 2018-01-05 | 深圳市华星光电技术有限公司 | Liquid crystal display and its backlight module |
| CN108693671A (en) * | 2018-05-30 | 2018-10-23 | 惠州市华星光电技术有限公司 | Backlight module, liquid crystal display |
| CN111045254A (en) * | 2019-12-31 | 2020-04-21 | 北京星光影视设备科技股份有限公司 | Side entry luminous flat light |
| CN112859407A (en) * | 2021-02-06 | 2021-05-28 | 安徽赛迈特光电股份有限公司 | Anti-scratch backlight module |
| CN112859408A (en) * | 2021-02-06 | 2021-05-28 | 安徽赛迈特光电股份有限公司 | Highlight quantum dot display |
| CN115774353A (en) * | 2021-09-06 | 2023-03-10 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544179A (en) * | 2017-09-07 | 2018-01-05 | 深圳市华星光电技术有限公司 | Liquid crystal display and its backlight module |
| CN108693671A (en) * | 2018-05-30 | 2018-10-23 | 惠州市华星光电技术有限公司 | Backlight module, liquid crystal display |
| CN111045254A (en) * | 2019-12-31 | 2020-04-21 | 北京星光影视设备科技股份有限公司 | Side entry luminous flat light |
| CN112859407A (en) * | 2021-02-06 | 2021-05-28 | 安徽赛迈特光电股份有限公司 | Anti-scratch backlight module |
| CN112859408A (en) * | 2021-02-06 | 2021-05-28 | 安徽赛迈特光电股份有限公司 | Highlight quantum dot display |
| CN115774353A (en) * | 2021-09-06 | 2023-03-10 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
| CN115774353B (en) * | 2021-09-06 | 2024-04-19 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
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