CN106597740A - Backlight module and liquid crystal display - Google Patents
Backlight module and liquid crystal display Download PDFInfo
- Publication number
- CN106597740A CN106597740A CN201611197520.1A CN201611197520A CN106597740A CN 106597740 A CN106597740 A CN 106597740A CN 201611197520 A CN201611197520 A CN 201611197520A CN 106597740 A CN106597740 A CN 106597740A
- Authority
- CN
- China
- Prior art keywords
- light source
- backlight module
- source assembly
- radiating piece
- liquid crystal
- 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
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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight module. The backlight module comprises a radiating part and a light source component. Overflow-preventing grooves are formed in the surface of the radiating part, and the surface of the radiating part is coated with fluid heat-conduction media. The light source component attaches to the surface coated with the fluid heat-conduction media. The invention further discloses a liquid crystal display with the backlight module. By the arrangement, the radiating efficiency of the backlight module is increased greatly.
Description
Technical field
The present invention relates to liquid crystal manufacturing technology field, more particularly to a kind of backlight module and the liquid with the backlight module
Crystal display.
Background technology
Backlight module is the light source of liquid crystal display.Backlight module operationally can generate heat, thus its heat dissipation design is very
It is crucial.Backlight module includes heat sink and fits in the light source assembly on heat sink.Light source assembly and/or heat sink surface microscopic
On be not substantially flat, but with many tiny concavo-convex, cause there is gap between the surface fitted.It is filled with gap
The extremely low air of heat transfer efficiency, greatly reduces the radiating efficiency of backlight module, have impact on the heat dispersion of backlight module.
The content of the invention
In view of this, the invention provides a kind of backlight module and the liquid crystal display with the backlight module, described
The radiating efficiency of backlight module is high.
A kind of backlight module, including radiating piece and light source assembly；The surface of the radiating piece is provided with and only overflow groove, the surface
Fluid heat-conducting medium is coated with, the light source assembly fits in the surface for being provided with the fluid heat-conducting medium.
Wherein, the radiating piece is provided with spacing walls, the light source assembly be held in the surface and the spacing walls it
Between.
Wherein, the fluid heat-conducting medium includes hot cream, tin cream or heat-conducting silicone grease.
Wherein, the light source assembly includes circuit board assemblies and the luminescent device being electrically connected on the circuit board assemblies.
Wherein, the backlight module includes light guide plate, and the light guide plate is located at the radiating piece side, the light guide plate
Incidence surface is relative with the beam projecting direction of the light source assembly.
A kind of liquid crystal display, including backlight module, the backlight module includes radiating piece and light source assembly；The radiating
The surface of part is provided with and only overflow groove, and the surface-coated has fluid heat-conducting medium, and the light source assembly is fitted in and is provided with the fluid
The surface of heat-conducting medium.
Wherein, the marginal position of the correspondence light source assembly is provided with spacing walls, the light source assembly card on the radiating piece
Hold between the surface and the spacing walls.
Wherein, the fluid heat-conducting medium includes heat-conducting cream, tin cream or heat-conducting silicone grease.
Wherein, the light source assembly includes circuit board assemblies and the luminescent device being electrically connected on the circuit board assemblies.
Wherein, the backlight module includes light guide plate, and the light guide plate is located at the radiating piece side, the light guide plate
Incidence surface is relative with the beam projecting direction of the light source assembly.
Thus, the backlight module of the invention, by using light source assembly described in the fluid heat conducting medium filling with
The gap of the radiating piece, using the easy mobility and low thermal contact resistance characteristic of the fluid heat-conducting medium, efficiently will be described
Heat produced by light source assembly is conducted to the radiating piece, greatly improves radiating efficiency；By arranging the groove that only overflows, and
Can prevent the fluid heat-conducting medium from overflow occurring.
Description of the drawings
In order to be illustrated more clearly that technical scheme, the accompanying drawing to be used needed for embodiment will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained such as these accompanying drawings.
Fig. 1 is the decomposition texture schematic diagram of the backlight module of first embodiment of the invention；
Fig. 2 is the assembly structure diagram of the backlight module in Fig. 1；
Fig. 3 is the assembly structure diagram of the backlight module of second embodiment of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Following examples of the present invention provide a kind of backlight module and the liquid crystal display with the backlight module.It is described
Backlight module includes radiating piece and the light source assembly being located on the radiating piece.The light source assembly is including but not limited to LED
(light emitting diode) component, for example, can also be the electroluminescent light sources such as CCFL (cathode fluorescent tube) component.Certainly, it is described
Backlight module also includes light guide plate, blooming piece, plastic frame etc..Wherein, the light guide plate is located at the radiating piece side, described
The incidence surface of light guide plate is relative with the beam projecting direction of the light source assembly.The liquid crystal display also includes TFT, and (thin film is brilliant
Body pipe) substrate, liquid crystal layer and CF (colored filter) substrate etc., for purpose that is brief and concise, giving top priority to what is the most important, the present embodiment pair
This is not specifically described.
As depicted in figs. 1 and 2, the backlight module 10 of first embodiment of the invention includes radiating piece 11, and is located at radiating
Light source assembly 13 on part 11.Light source assembly 13 has exiting surface and shady face B.Light is launched by the exiting surface；The back of the body
Bright finish B refers to face relative with the exiting surface, away from beam projecting direction.Specifically, the shady face B laminatings of light source assembly 13
On radiating piece 11.
Wherein, as shown in figure 1, radiating piece 11 has surface A, surface A is relative with shady face B.Surface A is provided with and only overflow groove
110 and 111.In the present embodiment, shape, position and the quantity for only overflowing groove is not limited to as shown in Fig. 1, and can be root
According to specifically need design；The structure of the radiating piece is also not necessarily limited to as shown in Fig. 1, equally can be according to specific product design
It is determined that.
As illustrated in fig. 1 and 2, light source assembly 13 includes circuit board assemblies 132, and is electrically connected on circuit board assemblies 132
Luminescent device 131,133 and 134.Luminescent device 131,133 and 134 can be LED or CCFL, and other electricity are can also be certainly
Electroluminescence device.In the present embodiment, by taking three luminescent devices 131,133 and 134 as an example, this is that one kind is schematically illustrated.
In other embodiment, the quantity of the luminescent device can be set as needed.
As shown in figure 1, the shady face B (i.e. back to the face of light source assembly 13) of light source assembly 13 is just to surface A, in assembling
Shady face B fits with surface A.Due to the restriction of machining accuracy, shady face B can not possibly make substantially flat, shady face with surface A
Have many tiny concavo-convex on B and/or surface A, after the laminating of two sides irregular gap can be formed.Air is filled in gap,
And the heat transfer efficiency of air is extremely low.
As depicted in figs. 1 and 2, be coated with fluid heat-conducting medium 12 in surface A, fluid heat-conducting medium 12 be located at surface A with
Between shady face B.Fluid heat-conducting medium 12 is that mobility is preferable, and thermal contact resistance is much smaller than the heat-conducting medium of air.Fluid is led
Thermal medium 12 includes but is not limited to heat-conducting cream, tin cream or heat-conducting silicone grease etc..
As shown in Fig. 2 when light source assembly 13 is assembled on radiating piece 11, shady face B can pressing surface A.Fluid heat conduction
Medium 12 can occur diffusional flow when being squeezed, the gap filling of shady face B and surface A is full so that shady face B and surface
A is brought into close contact, and the air in the gap is almost all discharged.The thermal contact resistance of fluid heat-conducting medium 12 is minimum, heat conduction system
Number is far above air, therefore efficiently the heat produced by light source assembly 13 can be conducted to radiating piece 11, greatly improves scattered
The thermal efficiency.
As shown in Fig. 2 if the amount of fluid heat-conducting medium 12 of coating is excessive, unnecessary fluid heat-conducting medium 12 will be flowed into
The groove 110 and 111 that only overflows is stored up, and is unlikely to the inside for being spilled over to backlight module 10.
Thus, the backlight module 10 of this first embodiment, by using fluid heat-conducting medium 12 filling light source assembly 13 with
The gap of radiating piece 11, using the easy mobility and low thermal contact resistance characteristic of fluid heat-conducting medium 12, efficiently by light source assembly
Heat produced by 13 is conducted to radiating piece 11, greatly improves radiating efficiency；Only overflow groove 110 and 111 by arranging, and can prevent
There is overflow in fluid stopping body heat-conducting medium 12.
As shown in figure 3, in second embodiment of the invention, it is unlike the embodiments above, in this backlight module 20
Spacing walls 212 are additionally provided with radiating piece 21, the marginal position of the corresponding light source component 23 of spacing walls 212, light source assembly 23 is held in
Between the surface of radiating piece 21 and spacing walls 212.Spacing walls 212 play a part of to hold light source assembly 23, while also having
Standby certain function of preventing the fluid heat-conducting medium from overflowing.It should be understood that spacing walls 212 can be with the institute on light source assembly 23
Circuit board assemblies clamping is stated, without contacting with the luminescent device on light source assembly 23, to avoid damaging the luminous organ
Part.In the present embodiment, the shape of the spacing walls, position and quantity are not limited to as shown in Fig. 3, and can be according to concrete
Need design.
As shown in figure 3, light source assembly 23 can be threaded connection part 24 being fixed on radiating piece 21.It is threaded connection
Part 24 and spacing walls 212, light source assembly 23 and radiating piece 21 form aspectant directly contact and install, be beneficial to high-efficiency heat conduction,
Radiating.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, can easily expect various equivalent modifications or
Replace, these modifications or replacement all should be included within the scope of the present invention.Therefore, protection scope of the present invention Ying Yiquan
The protection domain that profit is required is defined.
Claims (10)
1. a kind of backlight module, it is characterised in that
Including radiating piece and light source assembly；The surface of the radiating piece is provided with and only overflow groove, and the surface-coated has fluid heat conduction to be situated between
Matter, the light source assembly fits in the surface for being provided with the fluid heat-conducting medium.
2. backlight module according to claim 1, it is characterised in that
The radiating piece is provided with spacing walls, and the light source assembly is held between the surface and the spacing walls.
3. backlight module according to claim 1 and 2, it is characterised in that
The fluid heat-conducting medium includes hot cream, tin cream or heat-conducting silicone grease.
4. backlight module according to claim 1 and 2, it is characterised in that
The light source assembly includes circuit board assemblies and the luminescent device being electrically connected on the circuit board assemblies.
5. backlight module according to claim 1 and 2, it is characterised in that
The backlight module include light guide plate, the light guide plate be located at the radiating piece side, the incidence surface of the light guide plate with
The beam projecting direction of the light source assembly is relative.
6. a kind of liquid crystal display, including backlight module, it is characterised in that
The backlight module includes radiating piece and light source assembly；The surface of the radiating piece is provided with and only overflow groove, the surface-coated
There is fluid heat-conducting medium, the light source assembly fits in the surface for being provided with the fluid heat-conducting medium.
7. liquid crystal display according to claim 6, it is characterised in that
The marginal position of the correspondence light source assembly is provided with spacing walls on the radiating piece, and the light source assembly is held in the table
Between face and the spacing walls.
8. the liquid crystal display according to claim 6 or 7, it is characterised in that
The fluid heat-conducting medium includes heat-conducting cream, tin cream or heat-conducting silicone grease.
9. the liquid crystal display according to claim 6 or 7, it is characterised in that
The light source assembly includes circuit board assemblies and the luminescent device being electrically connected on the circuit board assemblies.
10. the liquid crystal display stated according to claim 6 or 7, it is characterised in that
The backlight module include light guide plate, the light guide plate be located at the radiating piece side, the incidence surface of the light guide plate with
The beam projecting direction of the light source assembly is relative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197520.1A CN106597740A (en) | 2016-12-22 | 2016-12-22 | Backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611197520.1A CN106597740A (en) | 2016-12-22 | 2016-12-22 | Backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106597740A true CN106597740A (en) | 2017-04-26 |
Family
ID=58602597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611197520.1A Pending CN106597740A (en) | 2016-12-22 | 2016-12-22 | Backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106597740A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017282A (en) * | 2007-02-27 | 2007-08-15 | 友达光电股份有限公司 | LCD and back light module thereof |
| CN101413655A (en) * | 2008-11-18 | 2009-04-22 | 南京蓝摩科技有限公司 | Heat radiation structure of LED lamp backlight device |
| CN202040778U (en) * | 2011-04-12 | 2011-11-16 | 深圳Tcl新技术有限公司 | Backlight heat dissipation structure and liquid crystal display |
| CN102537792A (en) * | 2012-02-09 | 2012-07-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| US20120212976A1 (en) * | 2011-02-22 | 2012-08-23 | Kocam International Co., Ltd. | Integrated backlight module with good heat equalization and heat dissipation performance |
| CN102732193A (en) * | 2011-04-11 | 2012-10-17 | 王子制纸株式会社 | Double-faced adhesive sheet, double-faced adhesive sheet with stripping sheet and optical laminated body |
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN104460085A (en) * | 2014-12-11 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Display device, substrate for same, and method for manufacturing display device |
-
2016
- 2016-12-22 CN CN201611197520.1A patent/CN106597740A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101017282A (en) * | 2007-02-27 | 2007-08-15 | 友达光电股份有限公司 | LCD and back light module thereof |
| CN101413655A (en) * | 2008-11-18 | 2009-04-22 | 南京蓝摩科技有限公司 | Heat radiation structure of LED lamp backlight device |
| US20120212976A1 (en) * | 2011-02-22 | 2012-08-23 | Kocam International Co., Ltd. | Integrated backlight module with good heat equalization and heat dissipation performance |
| CN102732193A (en) * | 2011-04-11 | 2012-10-17 | 王子制纸株式会社 | Double-faced adhesive sheet, double-faced adhesive sheet with stripping sheet and optical laminated body |
| CN202040778U (en) * | 2011-04-12 | 2011-11-16 | 深圳Tcl新技术有限公司 | Backlight heat dissipation structure and liquid crystal display |
| CN102537792A (en) * | 2012-02-09 | 2012-07-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN104460085A (en) * | 2014-12-11 | 2015-03-25 | 合肥鑫晟光电科技有限公司 | Display device, substrate for same, and method for manufacturing display device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170426 |